Weight-bar support structure with retractable arms

Information

  • Patent Grant
  • 6447433
  • Patent Number
    6,447,433
  • Date Filed
    Tuesday, November 23, 1999
    26 years ago
  • Date Issued
    Tuesday, September 10, 2002
    23 years ago
  • Inventors
  • Examiners
    • Mulcahy; John
    Agents
    • Knobbe, Martens, Olson & Bear, LLP
Abstract
A weight-bar support structure is disclosed. The structure includes a user supporting platform or seat and two spaced apart posts. The first end of a weight-bar supporting arm is connected to a lug extending from each post. A second end of each arm includes a weight-bar supporting cradle and an upwardly extending guide. The arms are moveable from a retracted position to a user lift-off position. A spring having a first end connected to the arm and a second end located in a slot in the lug biases each arm, when a weight laden bar is removed therefrom, from the lift-off to the retracted position.
Description




FIELD OF THE INVENTION




The present invention relates to a weight bench for supporting a weight-laden bar. In particular, the present invention relates to a weight bench having arms for supporting a weight-bar, the arms movable between a retracted position and a lift-off position.




BACKGROUND OF THE INVENTION




Current wisdom, both among the current population and physicians, trainers, and other health care related personnel, is that exercise is beneficial to the health and well-being of individuals. For this reason, more and more individuals are engaging in exercise programs to build muscular strength and improve cardiovascular capacity.




Recently, some fitness experts have declared one or more of the “standby” weight training exercises as undesirable or dangerous. In particular, some have declared these exercises unhealthy, or as creating a risk of injury high enough that they are not recommended to the majority of the population. Unfortunately, no substitute exercise is often available which is as effective as the particular weight-training exercise.




One exercise which has been viewed at times with some negativity is the bench press. In this exercise, a user lays on his back on a bench, and then raises and lowers a weight-laden bar over his chest while grasping the bar with his hands. This exercise can entail the lifting of a considerable amount of weight, often hundreds of pounds. The actual pressing of the weight-laden bar up and down does not pose the most substantial risk of injury during the exercise, however.




To commence a bench press, the bar must be retained in a position away from the bench so the person exercising can move into the correct position on the bench. Once positioned on the bench, the user moves the bar into position and starts the exercise.




Normally, the person exercising lays on a flat bench located between two upwardly extending support posts. The bar, in its resting position, is located on hooks extending outwardly from the posts. The user lays on the bench, reaches upwardly and grasps the bar, and then removes it from the hooks to begin the exercise.




In order that the support posts and hooks not obstruct the area in which the exerciser moves the bar up and down during the exercise, the support posts are located behind the user's shoulders and approximately on either side of the user's head. The location of the posts means that the user must reach backwardly to grasp the bar and lift it off of the posts.




Because the support posts are located behind the lifter's head, his arms are in an awkward position when the bar is lifted from the supports. In this position, the exerciser has reduced strength and control over the weight, and the shoulders are in a position in which they are most susceptible to extreme stress and injury. A lifter otherwise capable of completing the exercise of moving the bar up and down over his chest can injure himself when attempting to lift the bar from the posts.




One method of reducing this risk of injury has been to have a “spotter” aid in lifting the bar from the hooks and positioning the bar over the chest of the exerciser. In addition to the inconvenience of requiring the presence of a second person, this method has two serious drawbacks which can result in injury to both the spotter and the exerciser. First, the spotter must stand behind the head of the exerciser and lift the bar off of the posts. The spotter reaches forward and lifts the bar from the posts in a maneuver which approximates an upright rowing exercise. The spotter then moves the bar outwardly from his body over the chest of the exerciser. When the spotter lifts the bar from the posts, the spotter is lifting a substantial amount of weight in a weak position. The spotter often suffers shoulder injuries as a result. Secondly, because the exerciser and bench prevent the spotter from moving forward, the spotter must lean over or extend his reach to place the bar over the exerciser's chest. The spotter can suffer back, shoulder, and arm injuries as a result.




Moreover, the exerciser can suffer injuries when a spotter is used. Because the exerciser does not lift all of the weight on the bar from the post, the exerciser does not adjust and stabilize the bar as it is removed from the post. Therefore, when the spotter releases his grip from the bar when it is located over the exerciser, the shift in weight to the exerciser is often so sudden that the exerciser has difficulty in stabilizing the bar. As a result, the exerciser can drop the bar, or injure shoulder or arm muscles attempting to right the bar.




Another risk of injury from the bench press exercise arises if the exerciser is incapable of returning the weight-laden bar to the hooks on the support post. This often occurs when the exerciser is fatigued and unable to press the bar high enough to reach the hooks.




Normally, exercisers also engage a spotter who aids in raising the bar to its resting position if the exerciser encounters these difficulties. As described above, however, because of the position of the spotter and the exerciser, the spotter is not in position in which he can offer substantial leverage to lift the bar from the exerciser, and can injure himself attempting to reach over and lift the bar upwardly.




Other exercises which have substantially the same arrangement whereby the bar is supported in a resting location which is not easily reached by the exerciser for use present many of the same problems and risks of injury. Such exercises include the incline bench press, the decline bench press, and the military bar press.




SUMMARY OF THE INVENTION




In accordance with the present invention a weight-bar support structure having weight-bar supporting arms which are movable between a first retracted weight-bar supporting position and a second weight-bar lift-off position is provided.




In a first form of the invention, the support structure includes an elongate horizontally mounted user supporting platform, and two upwardly extending posts located on either side of the platform. A weight-bar supporting arm is connected to a lug extending outwardly from each post.




The arm has a first end portion connected to the lug. Pins pass through a sleeve in outer flange portions on each side of the arm and engage opposite sides of the lug. In this fashion, the arm is rotatably connected to the lug.




A “J”-shaped weight-bar support member is located at a second end portion of the arm. The bottom portion of the “J”-shaped member forms a bar supporting cradle. The top portion of the “J”-shaped member acts as a guide means for directing the bar back into the cradle.




Each arm is moveable from a first retracted position in which the arm extends substantially upwardly along the post, to a weight-bar lift-off position in which the arm extends outwardly over the platform. A cushion is located on the lug for engagement with a bottom edge of the arm for limiting the rotation of the arm at the lift-off position. A stop located on the back of the arm engages another cushion on the lug for limiting the rotation of the arm at the retracted position.




Return or biasing means are provided for automatically moving the arms from the lift-off position to the retracted position when the user removes the weight-bar from the arms. The return means comprises a flat spring having a first end connected to the arm and a second end connected to the lug.




In use of this form of the invention, primarily for use in the exercise known as the “bench press,” a user places a bar into the cradles of each arm with the arms in the retracted position. The user lays on the platform and moves the bar and arms to the lift-off position. When the user lifts the bar from the cradles, the spring in each arm returns the arm to the retracted position. After the user has completed the exercise, he moves the bar against the guides, and downwardly into the cradles.




A second form of the invention comprises a device for use by a user in doing a “military” press exercise. In this form of the invention, the device includes a user-engaging platform in the form of a seat, and a weight-bar support structure.




The seat and a seat back are supported by a seat frame. The weight-bar support structure includes two posts extending vertically upwardly on either side of the seat and in front thereof. The posts are supported by a frame which is connected to the frame which supports the seat.




Lugs extend outwardly from the top end of each of the posts in the direction of the seat. Movably mounted on each lug is a weight-bar supporting arm like that described above.




In using this form of the invention, the user places a weight-bar into the cradles of each arm with the arms in retracted position. The user sits on the seat with his back against the seat back, and moves the arms to the lift-off position. When the user lifts the bar upwardly, the arms return to their retracted position. After completion of the exercise, the user places the bar back into the cradle of each arm.




A third form of the invention comprises a device for use by a user in doing an “incline” press exercise. In this form of the invention, the device includes a user-engaging platform in the form of a seat, and a weight-bar support structure.




The seat and a seat back are supported by a frame. The weight-bar support structure includes two posts extending vertically upwardly on either side of the seat. The seat is located forwardly of the arms, while the seat back slopes upwardly and rearwardly from the seat to a point behind the arms. The posts are supported by a frame which is connected to the frame which supports the seat.




Lugs extend outwardly from the top end of each of the posts in the direction of the seat. Movably mounted on each lug is a weight-bar supporting arm like that described above.




In using this form of the invention, the user places a weight-bar into the cradles of each arm with the arms in retracted position. The user sits on the seat with his back against the seat back, and moves the arms to the lift-off position. When the user lifts the bar upwardly, the arms return to their retracted position. After completion of the exercise, the user places the bar back into the cradle of each arm.




A fourth form of the invention comprises a device for use by a user in doing either an “incline” press or “military” press exercise. In this form of the invention, the device includes a user-engaging platform in the form of first and second seats and a seat back, and a weight-bar support structure.




The weight-bar support structure includes two posts extending vertically upwardly and spaced apart by a horizontal support. The seat members and seat back are located between the posts. The first seat member is located adjacent the support, and the second seat member is located outwardly of the support in front of the arms. The seat back extends upwardly between the first and second seat members. The seat back is movable from a first position in which it extends vertically upward, to a second position in which it slopes upwardly and rearwardly to a position behind the arms. Lugs extend outwardly from the top end of each of the posts. Movably mounted on each lug is a weight-bar supporting arm like that described above.




In using this form of the invention, the user places a weight-bar into the cradles of each arm with the arms in retracted position. To do a “military” press, the user places the seat back in a vertical position and sits on the first seat member facing the arms. To do an “incline” press exercise, the user tilts the seat back rearwardly and sits on the second seat member, facing away from the arms. The remainder of the exercise is like that described above.




Further objects, features, and advantages of the present invention will become apparent from the detailed description of the drawings which follows, when considered with the attached figures.











BRIEF DESCRIPTION OF THE DRAWINGS





FIG. 1

is a perspective view of a first embodiment of the weight-bar supporting structure of the present invention, illustrated with arms thereof in a retracted position;





FIG. 2

is a perspective view of the weight-bar supporting structure of

FIG. 1

illustrated with the arms thereof in a lift-off position;





FIG. 3

is a enlarged perspective front view of a portion of the weight-bar supporting structure of

FIG. 1

illustrating a portion of a post and an arm connected thereto;





FIG. 4

is an exploded view of the portion of the weight-bar supporting structure illustrated in

FIG. 3

;





FIG. 5

is an enlarged perspective rear view of the same portion of the weight-bar structure illustrated in

FIG. 3

;





FIG. 6

is a perspective view of a second embodiment of the structure of the present invention with arms thereof in a retracted position;





FIG. 7

is a perspective view of a third embodiment of the structure of the present invention with arms thereof in a retracted position;





FIG. 8

is a perspective view of a fourth embodiment of the structure of the present invention with arms thereof in a retracted position;





FIG. 9

is a perspective view of an alternate embodiment arm for use with the structures of the present invention; and





FIG. 10

is a side view of the arm illustrated in FIG.


9


.











DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT





FIG. 1

illustrates a weight-bar support structure


20


in accordance with a first form of the present invention. In general, the structure


20


preferably includes a user supporting platform


22


, two upwardly extending posts


24




a,b,


and a weight-bar supporting arm


26




a,b


located on each post. The platform


22


is supported by at least one, and preferably three legs


32




a,b,c,


and a cross-beam


34


extending between the posts


24




a,b.






Vertical posts


24




a,b


are spaced about 40-50, and most preferably about 45 inches apart. Each post


24




a,b


is about 30-40, and most preferably about 35 inches tall, having a first end portion


36


for contacting the ground, and a second free end portion


38


. The posts


24




a,b


are constructed of a rigid strong material such as aluminum or steel. A-36 steel in hollow tubular form about 2 inches square with a wall thickness of about {fraction (3/16)} of an inch is useful. A flat plate or similar member may be located on the bottom of each post to protect the surface on which the posts rest, and to provided added support to the structure.




The cross-beam


34


is preferably about 45 inches long, and extends between the two posts


24




a,b.


The exact length of the cross-beam


34


is determined by the distance the posts


24




a,b


are set apart, as it connects them.




The cross-beam


34


extends perpendicularly to the vertical posts


24




a,b


about 12-14 inches above the ground. The cross-beam


34


extends between the posts


24




a,b


a distance above the ground approximately equal to the distance above the ground an exerciser is supported when the user is exercising. The exerciser is supported between 12 and 18 inches, and most preferably about 16 inches above the ground during exercise. This distance allows for most users to sit or lay on the platform


22


and have their feet touch the ground. Each leg


32




a,b,c,


described in more detail below, is about 13 inches long, preferably equal in length to the height the cross-beam


34


is located above the ground. Each leg


32




a,b,c


may include a flat foot or similar member for reducing the marring of the surface on which they rest.




As can be seen in

FIG. 1

, the platform


22


is generally elongate and is supported in a generally horizontal position by the legs


32




a,b,c


and the cross-beam


34


. The user supporting platform


22


is about 45-50 inches long, 11-12 inches wide, and 3-5 inches thick. The platform


22


is preferably made of wood or metal with a layer of padding located on an upper surface


40


thereof. In particular, a layer of foam or similar padding is located over the base material, with a layer of vinyl, leather or similar durable material located over the padding. The platform


22


also includes a bottom surface


41


, and a first end portion


42


and second end portion


44


. A central structural support (such as a 2 inch square metal tube, not shown) runs along the length of the bottom surface


41


of the platform


22


and may be connected to the cross-beam


34


and an end support to which the legs


32




a,b


are connected, to provide added support and rigidity.




The first end portion


42


of the platform


22


is preferably located on and supported by the cross-beam


34


. The bottom surface


41


of the platform


22


is secured, at the first end portion


42


, to the cross-beam


34


so as to prevent movement with respect thereto, by welding, bolts, screws or similar attachment means.




The second end portion


44


of the platform


22


is supported by two legs


32




a,b.


The legs


32




a,b


are securely connected to the end support (such as a 2 inch square metal tube, not shown) extending across the bottom surface


41


of the platform


22


. The legs


32




a,b


are preferably attached directly to the end support and/or platform


22


by welding, bolts, screws or similar attachment means.




The third leg


32




c


is attached to the central support extending along the bottom surface


41


of the platform


22


as well. The third leg


32




c


is located between the first and second end portions


42


,


44


of the platform


22


, preferably about 9 inches from the cross-beam


34


towards the second end portion


44


of the platform


22


. The third leg


32




c


is to further support of the center of the platform


22


near where the majority of the weight is supported during exercise.




Each leg


32




a,b,c


is made of a strong, durable material such as steel, aluminum or the like. In one embodiment, the legs


32




a,b,c


are made of A-36 steel, and are square and hollow. The outer dimension of each leg


32




a,b,c


is about 1.5-2.5 inches, having a wall thickness of about {fraction (3/16)} of an inch. The legs


32




a,b,c


can also be constructed of a solid material. However, when the legs


32




a,b,c


are constructed of a solid material, their outer dimension may be enlarged to create the visual appearance of a stronger support structure.




The cross-beam


34


is preferably made of the same material as the legs


32




a,b,c.


When the cross-beam


34


and posts


24




a,b


are made of metal, the cross-beam


34


is welded to the posts


24




a,b.






The legs


34




a,b,c


and cross-beam


34


described herein comprise the preferred means for supporting the platform


22


in an elevated position above the ground. However, other support means may be used, as well known to those skilled in the art.




As illustrated in

FIG. 1

, an outwardly extending shoulder or lug


46




a,b


is located near the second end portion


38


of each post


24




a,b.


A weight-supporting arm


26




a,b


is connected to each of the lugs


46




a,b.


Each lug


46




a,b


is located about 8-12 inches down from the top of the post


24




a,b,


and extends towards the second end portion


44


of the platform


22


. As best illustrated in

FIG. 4

, each lug includes a top surface


48


, side surfaces


50




a,b,


and a front end


52


.




Each lug


46




a,b


extends outwardly from its corresponding post


24




a,b


about 3-9 inches, and most preferably about 5 inches, towards the second end portion of the platform


22


. The top surface


48


of each lug


46




a,b


is preferably parallel to the ground and platform


22


.




The top surface


48


is preferably as wide as the post


24




a,b.


The front end


52


is preferably a flat surface approximately 2 inches square. Each side surface


50




a,b


extends downwardly from the top surface


48


along the post


24




a,b


about 3-5 inches, and extends downwardly along the front end


52


about 2 inches so that it is flush therewith. As illustrated, a number of holes


53


may be located in the sides


50




a,b


for ornamentation, and for reducing the overall weight of the structure.




Each lug


46




a,b


can be manufactured in any number of ways. In one method, a flat section of material is bent form the side


50




a,b


and top surfaces


48


. This piece of material is connected to the post


24




a,b.


An end piece is then connected to the first section of material to form the front end.




Preferably, each lug


46




a,b


is made entirely of metal, such as A-36 steel having a thickness of {fraction (3/16)} of an inch. When formed as described above, the lugs


46




a,b


are constructed by welding the piece or pieces of material to each post


24




a,b.






In a second method of constructing the lugs


46




a,b,


a 2 inch square pieces of tubular metal is welded to the post


24




a,b.


A section of 2 inch square sheet metal is welded over the open end of the tubular piece of metal to form the front end


52


, and sheets of metal are welded onto the tubular piece and posts to form the side surfaces


50




a,b.






Weight-bar support means, preferably in the form of arms


26




a,b,


are connected to the support structure


20


. Preferably, an arm


26




a,b


is connected to each of the lugs


46




a,b


and includes rotational means for allowing the arm


26




a,b


to move with respect to the lug. Because each of the arms


26




a,b,


and their connection to the lugs


46




a,b,


are preferably identical, the following description, while only for one of the arms


26




b


as best illustrated in

FIGS. 3-5

, applies to each of them in the same manner.




The arm


26




b


has a first end portion


54


and second end portion


56


. The first end portion


54


is connected to the lug


46




b.


The first end portion


54


preferably includes spaced downwardly extending flanges


58




a,b


which straddle the lug


46




b,


one flange


58




a


located over one side surface


50




a


of the lug and the other flange


58




b


located over the other side surface


50




b


of the lug.




Each flange


58




a,b


extends downwardly from a central portion


60


of the arm


26




b,


and includes aligned bores


62




a,b


located therein. The bores


62




a,b


in the flanges


58




a,b


are aligned with a bore


64




b


passing through the lug


46




b.






Preferably, each flange


58




a,b


is connected to the lug


46




b


with bolts


66


,


67


. The bore


64


in the lug


46




b


is threaded where it passes through the side wall surfaces on each side


50




a,b.


A sleeve


68




a,b


is press-fit into the bore


62




a,b


in each flange


58




a,b.


Bolts


66


,


67


have a first threaded end portion


70


, an intermediate non-threaded portion


72


, and a head


74


at a second end and connect the arm


26




b


to the lug


46




b.






Each bolt


66


,


67


passes through the flange


58




a,b,


the first end portion


70


engaging the threads in the bore


64


in the lug


46




b.


When in this position, the sleeve


68




a,b


in each flange


58




a,b


engages the intermediate non-threaded portion


72


of the bolt, with the head


74


located outside of the flange. Preferably, a washer


76




a,b


is located between the head


74


and the outer surface of each flange


58




a,b,


as illustrated in FIG.


4


.




In the preferred construction of the lugs


46




a,b


described above, the wall thickness of the side portions is approximately about ⅜ of an inch. In order to increase the effective threaded engagement area of each lug


46




a,b


with the bolt


66


, a nut (not shown) is connected to the inside surface of each side


50




a,b


of the lug, the nut having a thickness of about 0.25 to 0.75 inches. When a nut is used, it is welded or attached to the side walls of the lug such that they do not protrude from the outwardly facing surface thereof.




As illustrated in

FIG. 3

, the central portion


60


of the arm


26




b


extends between the flanges


58




a,b


at the first end portion


54


thereof, and a weight-bar support member


78


located at the second end portion


56


. The central portion


60


is preferably constructed from 2 inch by 2 inch metal tubing having a square cross-section. Tubing of A-36 steel having a wall thickness of about {fraction (3/16)} of an inch has been found acceptable.




When in this form, the central portion


60


of the arm


26




b


has two outwardly facing side surfaces


80




a,b,


a front surface


82


, and rear surface


84


. The flanges


58




a,b


are preferably formed as extensions of the side surfaces


80




a,b.


The flanges


58




a,b


and central portion


60


can be formed from a single piece of material, but also by the addition of the flanges by welding or the like, to the material which constitutes the central portion.




Because the flanges


58




a,b


extend downwardly from each side


80




a,b


of the central portion


60


, edges


86


,


88


are formed at the bottom of the support on the front


82


and rear


84


sides, respectively.




When having the form described above, the lengthwise dimension of the central portion


60


of each arm


26




a,b


is about 5-12 inches, and most preferably about 8.5 inches. Each flange


58




a,b,


when having a “U”-shape as illustrated, has a radius of about 1-2 inches, and most preferably about 1.5 inches. The bores


62




a,b


in each flange


58




a,b


have a diameter of about 0.5 inches, for accommodating bolts


66


,


67


having approximately the same diameter non-threaded portion


72


.




The weight-bar support member


78


is preferably “J”-shaped, having a bar cradle portion


90


and an upwardly extending bar guide means


92


. Preferably, the member


78


is formed from a single piece of material connected to and supported by the central portion


60


.




The cradle


90


is the bottom of the “J”-shaped section of the member


78


which is attached to the central portion


60


. A first stem


94


of the “J” is located slightly outwardly of the front side


82


of the central portion


60


and extends upwardly about 1-2 inches, and most preferably about 2 inches. The cradle


90


itself has a substantially flat bottom surface


91


, separating the first stem


94


from a second stem


96


by about 1.5 inches. The second stem


96


extends upwardly from the flat bottom


91


into the top guide means


92


portion of the “J”. The cradle


90


is preferably constructed of metal, and has a width from 1-5 inches, and preferably about 3 inches.




The width of the flat bottom


91


of the cradle


90


is greater than the diameter of a bar, allowing a bar placed therein to rest directly on the bottom. The upwardly extending first stem


94


prevents the bar from bouncing, rolling or falling from the cradle


90


.




The guide means


92


slopes upwardly and backwardly the second stem


96


. From the bottom of the cradle


90


to a top end


98


of the weight-bar support


78


, the distance is preferably about 5-10 inches, and most preferably about 7-8 inches. The width of the guide means or


92


is about the same as the width of the cradle


90


.




As stated above, the guide


92


slopes rearwardly from bottom to top, as compared to the front and rear sides


82


,


84


of the central portion


60


. Preferably, the bottom of the cradle


90


is located approximately over the front side


82


of the central portion


60


, and the top of the guide


92


is located rearwardly of the rear side


84


of the main support portion by several inches. Thus, the guide


92


is offset at an angle of about 10-40 degrees, preferably about 30 degrees, to the arm


26




b.






A handle


100


extends from the top end


98


of the support


78


. The handle


100


includes a mounting flange


102


extending rearwardly from the guide


92


, and a cylindrical grip


104


. The flange


102


is a thin piece of material welded to an outside edge of the guide


92


. The grip


104


is preferably a tubular member which extends inwardly from the flange


102


. The grip


104


has a diameter of about 1 inch, and has a length of about 5-15 inches, and most preferably about 8-10 inches. Foam, rubber, or other material may be located over the grip


104


when it is made of metal to make the grip user friendly.




A stop


106


is located on the rear side


84


of the central portion


60


for limiting the rearward travel of the arm


26




b


with respect to the lug


46




b.


The stop


106


extends outwardly from the central portion


60


about 1 inch, and includes a flat lower surface


108


. This surface


108


is approximately even with the bottom edge


88


of the central portion


60


at the rear side


84


thereof.




The stop


106


engages a cushion


110


located on the top surface


48


of the lug


46




b.


As illustrated, the cushion


110


is a small block of durable, but slightly flexible, energy absorbing material securely connected to the lug


46




b


near the post


24




b.


Neoprene has been found to be an especially good cushion material. The cushion


110


is about 1 inch long and 2 inches wide, and is attached to the lug


46




a,b


via offset screw, adhesive or other attachment means well known in the art.




A similar cushion


112


is located near the front end


52


of the lug


46




b


on the top surface


48


. This cushion


112


preferably comprises a similar material, and is about 2-2.5 inches in width and about 0.5 inches in depth. The cushion


112


is located on the lug


46




b


in a position for engaging the front edge


82


of the central portion


60


of the arm


26




b.






As can be seen in

FIGS. 1 and 3

, the second end portion


38


of each post


24




b


preferably extends slightly upwardly beyond the lug


46




b


which supports the arm


26




b.


The posts


24




b


extend about 1-5 inches beyond the top surface


48


of the lug


46




b.






Most importantly, to accommodate the backward tilting guide means


92


located on the arm


26




b,


and to prevent it from hitting the post


24




b


or having a user's fingers become trapped therebetween, the front side of the post in this area slopes backwardly. The exact slope depends on the slope of the guide


92


and the height of the post


24




b,


but in any case should leave 0.5-3 inches of space between the post


24




b


and the arm


26




b


when each arm is closest to the post.




The above-described arm/lug combination allows each arm


26




a,b


to move from a first retracted position, to a second lift-off position, as illustrated in

FIGS. 1 and 2

. The arms


26




a,b


are in their retracted position when the stop


106


located on the rear surface


84


of the central portion


60


of the arm is in contact with the cushion


110


on the lug, as illustrated in

FIGS. 1 and 5

. In the lift-off position, the arms


26




a,b


extend away from the posts


24




a,b,


with the leading edge


86


of the central portion


60


of each arm


26




a,b


engaging the cushion


112


near the front end of the lug


46




a,b,


as illustrated in FIG.


2


. Rotational attachment of the arms


26




a,b


to the lugs


46




a,b


via the bolts


66


,


67


allows for movement of the arms between these two positions.




Preferably, return or biasing means are provided for automatically moving the arms


26




a,b


from the lift-off position back to their retracted position. In the preferred embodiment, the return means comprises a spring


114


, as illustrated in FIG.


4


.




The spring


114


is an elongate body, preferably constructed of metal, which is curved to create a biasing force from a first end portion


116


to a second end portion


118


. The spring


114


is approximately 6-8 inches, and most preferably about 7.5 inches long, and 1-2 inches wide. The maximum depth in curvature with respect to the ends


116


,


118


depends on the desired spring force, but is preferably around 1 inch.




The first end portion


116


is connected to the inside of the arm


26




a,b


within the hollow interior of the central portion


60


. An Allen screw


120


passes through the front side


82


of the main support portion just below the cradle


90


and engages a threaded hole


122


in the first end portion


116


in the spring


114


.




The second end portion


118


of the spring


114


passes through a slot


124


located in the top surface


48


of the lug


46




a,b.


The slot


124


is located rear of the front end


52


of the lug


46




a,b


by about 1.5 inches, and is about 0.5 inches in length (front to rear) and 2-2.5 inches wide (side to side). Because the first end portion


116


of the spring


114


is securely connected to the arm


26




a,b,


no direct attachment means are used to locate the second end portion


118


of the spring


114


in the slot


124


.




An upwardly extending catch, in the form of a pin


125


, is located on each lug


46




a,b,


for use in stationing a bar on the lugs


46




a,b


in case of emergency, as described below. The pin


125


is somewhat “L”-shaped, having a first end connected to the inside surface


50




a


of the lug


46




b,


and a second free end located vertically above the top surface


48


of the lug. It is also contemplated that the pin


125


may be located on the outside surface


50




b


of the lug


46




b,


or extend from the end


52


thereof. Further, it is possible for the catch to take other forms, such as an “L”-shaped extension of the lug


46




b


extending outwardly and slightly upwardly.




Use of the weight-bar support structure


20


described above is as follows.




An exerciser locates a weight-bar


126


, with or without additional weights thereon, on the structure


20


. The user places the bar


126


in horizontal fashion within the cradles


90


located on each arm


26




a,b


with each arm in retracted position as illustrated in FIG.


1


. In this position, the bar


126


is supported towards the outer ends thereof by the spaced cradles


90


.




Next, the user lays on his back on the platform


22


, with his head under the bar


126


between the two posts


24




a,b.


The user or a spotter then moves the arms


26




a,b,


and thus the bar


126


, into the lift-off position. The user moves the bar into lift-off position by pulling slightly on any portion of the bar


126


or either arm


26




a,b,


pulling the arms


26




a,b


and bar


126


forward. A spotter can move the bar into lift-off position for a user by grasping the handles


100


and pushing them forwards.




In either instance, the weight of the bar


126


and arms


26




a,b,


along with any pulling or pushing force, rotate them to the lift-off position against the force provided by spring


114


. Rotation of the arm


26




a,b


stops when the front edge


86


of the central portion


60


of each arm contacts the cushion


112


near the front end


52


of the lug. At all times, however, the load on each arm


26




a,b


is born by the lugs


46




a,b


through the bolts


66


,


67


. The cradle


90


prevents the bar


126


from sliding, bouncing or rolling from the cradle


90


when the arms


26




a,b


are moved to the lift-off position, without regard to how quickly the arms are moved to this position.




The weight of the bar


126


maintains the arms


26




a,b


and the bar


126


in the lift-off position, overcoming the force of the spring


114


. At this time, the bar


126


is conveniently located directly over the chest of the exerciser. The exerciser reaches up, grasps the bar


126


, and presses it upwardly out of the cradles


90


.




As the user removes the bar


126


from the cradles


90


on the arms


26




a,b,


the reduced weight biasing force is overcome by the spring


114


, causing each arm


26




a,b


to begin moving back towards the retracted position. Once the user has completely lifted the bar


126


from the arms


26




a,b,


the arms are immediately returned by the spring


114


back to the retracted position. Movement of the arms


26




a,b


to the retracted position is stopped when the stop


106


on the arm


26




a,b


encounters cushion


110


on the lug


46




a,b.






After the user has completed the exercise, he returns the bar


126


back to the cradles on the arms of the support structure


20


. The user maintains the bar


126


pressed upwardly above him, and then moves the bar backwardly until it hits the guide


92


on each arm


26




a,b.


The guide


92


prevents further rearward movement of the bar


126


, and aids the user in guiding the bar


126


into the cradles


90


.




Most importantly, the ability of the exerciser to move the bar from a supported stationary position to a position in which it is ready for use reduces the injuries caused when the exerciser begins the exercise.




Preferably, a spotter is present during all phases of exercise. The present mechanism reduces risks of injury to the spotter when the bar is moved from the retracted to the lift-off position. In particular, as stated above, the spotter no longer needs to actually lift any weight and transfer it to the user. Instead, the user or the spotter simply moves the arms with the weights thereon into a position where the bar is lifted by only the user.




If, when a user has completed exercising, he is unable to press the bar


126


upwardly far enough to reach the height of the cradles


90


, he can simply set the bar on the lugs


46




a,b.


The user presses the bar


126


slightly upwards and sets the bar


126


on the top surfaces


48


of the lugs


46




a,b.


The pin


125


which extends upwardly just beyond the top surface


48


prevents the bar


126


from rolling off of the lugs onto the user.




The ability of the user to set the bar


126


on the lugs


46




a,b


in case of emergency benefits not only the user, but any spotter who might be aiding the user. In particular, if the user needs assistance in moving the bar


126


at all, the spotter need only lift the bar


126


a short distance to get it in the safety position. Because this position is much lower than the cradles


90


, the spotter can use his stronger leg muscles to effectuate the upward movement of the bar


126


, as opposed to weaker shoulder, lower back, and arm muscles.




As a further aspect of the present invention, the above-described weight-bar support can be adapted to several other structures. For example, the same structure as described above can be used in conjunction with a “decline” or “incline” bench press. Preferred embodiments of such structures are disclosed below.





FIG. 6

illustrates a second embodiment of the present invention, a device


220


useful for a “military” press exercise. In this form of the invention, the device


220


includes a user supporting platform in the form of a seat


221


and seat back


222


, and a weight-bar support structure in the form of two upwardly extending posts


224




a,b


and a weight-bar supporting arm


226




a,b


positioned on each post.




The seat


221


is supported by a seat support structure


228


, and the posts


224




a,b


and seat support structure are connected by a frame


230


. The seat support structure


228


preferably includes a “U”-shaped member


232


having ends which contact the ground, a horizontal support


234


, and an “L”-shaped, ground-contacting support


236


.




The horizontal support


234


extends between the “U”-shaped member and the “L”-shaped support. The “L”-shaped support


236


extends between the horizontal support


234


and the frame


230


. Preferably, a brace


237




b


extends from the horizontal support


234


to a point along the “L”-shaped support and a brace


237




a


extends from the frame


230


to a point along the “L”-shaped member.




The seat


221


is movably mounted to the horizontal support


234


via a seat post


238


. Preferably, the seat post


238


is connected to a bottom surface of the seat


221


, and passes through a bore or passageway running vertically through the horizontal support


234


. The height of the seat


221


is adjustable, the post


238


having a number of bores therein for engagement with a spring-loaded pin passing through the support


234


. Preferably, the seat is padded and sized for supporting a user in a seated position thereon.




A seat back support post


239


extends upwardly from the “U”-shaped member for supporting the seat back


222


. Preferably, the post extends upwardly about 20-30, and most preferably about 25.5 inches. In order that a user may adjust the vertical position of the seat back


222


, a number of bores pass through the post


239


for engagement by a spring-loaded pin which passes through a member connected to a rear surface of the seat back


222


. As with the seat


221


, the seat back


222


is preferably padded, and sized for supporting the back of a user in a substantially vertical position.




The frame


230


preferably includes two sets of spaced rails


240




a,b


extending between the posts


224




a,b.


The “L”-shaped member


236


of the seat supporting structure


228


is connected to a lower of the two rails


240




a,


which rests on the ground. The other rail


240




b


is preferably located about 12 inches vertically above the lower rail. Three vertical supports


242




a,b,c


preferably extend between the two rails


240




a,b.


Two of the supports


242




a,c


extend between the rails


240




a,b


near the ends thereof. A central support


242




b


extends between the rails


240




a,b


at the point where the “L”-shaped support


236


of the seat support structure


228


is connected to the lower rail


240




a.


Two braces


244




a,b


extend from either side of the central support


242




b


to a point along the lower rail


240




a


on either side thereof.




The rails


240




a,b


preferably have ends which extend approximately perpendicular to a central section of the rail, with the ends being connected to the posts


224




a,b.


The length of the rails


240




a,b


is preferably chosen so that the posts


224




a,b


are spaced between about 42-48, and most preferably about 45 inches apart.




The posts


224




a,b


extend vertically upwardly at the ends of the rails


240




a,b.


The posts


224




a,b


are preferably about 30-40, and most preferably about 36 inches tall. A lug


246




a,b


extends horizontally outwardly in the direction of the seat


221


at the top of each post


224




a,b.


Preferably, each lug


246




a,b


extends outwardly from its corresponding post between about 9-13, and most preferably about 11 inches.




A lug support


250




a,b


extends from the bottom surface of each lug


246




a,b


to the post


224




a,b,


and on from the post to the top surface of the top rail


240




b.


The lug support


250




a,b


preferably extends from near the outer end of the lug


246




a,b


to provide added support to the lug when a weight-bar is located on the device.




Weight-bar support means, preferably in the form of arms


226




a,b


are connected to the structure


220


and movable from a retracted position to an extended position. In particular, arms


226




a,b


identical to those described in conjunction with the weight bench set forth above, are mounted on the lugs


246




a,b.


As the mounting and construction of the arms


226




a,b


is preferably identical to the arms


26




a,b


described above, the description is omitted herefrom.




Preferably, a stop


252




a,b


extends upwardly from each lug


246




a,b


between the top of each post


224




a,b


and the arms


226




a,b.


Each stop


252




a,b


has a rearwardly sloping front face


254




a,b


to accommodate the rearwardly sloping arms


226




a,b.


Preferably, the stops


252




a,b


are mounted so that the sloping front faces


254




a,b


extend parallel to the sloping arms


226




a,b


and leave approximately 0.5-3 inches therebetween.




Use of this device


220


is as follows. A user locates a weight-bar


256


, with or without additional weights thereon, on the device


220


. The user places the bar


256


in a horizontal position in the cradles of the arms


226




a,b


with the arms


226




a,b


in retracted position (as illustrated in FIG.


6


). In this position, the arms


226




a,b


support the ends of the bar


256


.




Next, the user selects the proper height of the seat


221


and seat back


222


, and sits down. The user or a spotter then moves the arms


226




a,b,


and thus the bar


256


, into the lift-off or “extended” position (in this position, the arms


226




a,b


are in the position illustrated in FIG.


2


). The user moves the bar into lift-off position by pulling slightly on any portion of the bar


256


or either arm


226




a,b,


pulling the arms


226




a,b


and bar


256


thereon in the direction of the seated user. A spotter can move the bar into lift-off position for a user by grasping the handles on the arms


256




a,b


and pushing them forwards.




In either instance, the weight bar


256


and arms


226




a,b,


along with any pulling or pushing force, rotate the arms to the lift-off position against the force provided by the spring or biasing means. Rotation of the arms


226




a,b


stops when the front edge thereof contacts the cushions on the lugs


246




a,b.


The cradle of the arms


226




a,b


prevents the bar


256


from sliding, bouncing or rolling from the cradle, without regard to how quickly the arms are moved into position.




Movement of the arms


226




a,b


to the extended position moves the bar


256


into a convenient location adjacent the user's chest, directly in front of him. Most importantly, however, by correctly positioning the seat, the user can position his body on the device


220


so that when the arms


226




a,b


are rotated, the bar is not only located in front of his chest, but is located directly adjacent his chest just below his shoulders. In other words, when the seat adjustment and arms are used together, every user of the device can orient himself on the device so that the when the arms


226




a,b


are extended, the bar is located in the correct starting position for the military press exercise corresponding to that user's body.




With the bar


256


so positioned, the user reaches out, grasping the bar


256


and lifting it from the arms


226




a,b.


As the user removes the bar


256


from the arms


226




a,b,


the reduced weight biasing force is overcome by the return biasing force acting on the arms


226




a,b,


causing the arms to move back to their retracted position. Movement of the arms


226




a,b


stops when the stop on each arm contacts the rear cushion on each lug


246




a,b.






The user exercises by pressing the bar


256


vertically upwardly above his head, and then lowering it back down to his chest, in repeated fashion. Once done exercising, the user returns the bar


256


back to the cradles of the arms


226




a,b.


The user pushes the bar


256


outwardly until it hits the upwardly extending guide portions of the arms


226




a,b,


and then the user allows the bar


256


to slide down along the guide portions into the cradles of the arms


226




a,b.


As with the previous exercise, a spotter is preferably present during all phases of the exercise.




If, when a user has completed exercising, he is unable to maintain the bar


256


in a position of sufficient height that it will clear the cradle portions of the arms


226




a,b,


he can simply set the bar


256


on the ends of the lugs


246




a,b.


The pins on the end of each lug


246




a,b


prevents the bar from rolling off the lugs


246




a,b.







FIG. 7

illustrates a third embodiment of the present invention, a device


320


useful for an “incline” press exercise. In this form of the invention, the structure


320


comprises a user supporting platform in the form of a seat


321


and an inclined back


322


sloping away from the seat


321


, and a weight-bar supporting structure in the form of two upwardly extending posts


324




a,b


and a weight-bar supporting arm


326




a,b


positioned on each post.




The posts


324




a,b


have a first end


328




a,b


and a second end


330




a,b.


The posts


324




a,b


extend vertically upwardly from the first end


328




a,b


which rests on the ground. The posts


324




a,b


are preferably between about 50-70, and most preferably about 60 inches in height.




A horizontal support


332


extends between the posts


324




a,b.


The support


332


is about 40-50, and most preferably about 45 inches in length, spacing the posts


324




a,b


apart by the same distance. Preferably, the support


332


is located about 30-35, and most preferably 32 inches above the ground.




Lugs


346




a,b


extend outwardly from each of the posts


326




a,b


about 5-12, and most preferably about 8 inches. Preferably, the lugs


346




a,b


extend outwardly from the posts


326




a,b


about 8-12 inches down from the top or second ends


330




a,b


thereof, and at an angle perpendicular thereto.




The seat


321


is located on the same side of the structure


320


as the lugs


346




a,b.


Preferably, the seat


321


is centered about midway between the posts


324




a,b,


and supported by a frame member


334


.




The frame member


334


extends from the support


332


downwardly and outwardly therefrom at an angle, and then extends outward perpendicular to the support. The seat


321


is located on top of the portion of the frame member


334


extending perpendicular to the support. This portion of the frame member


334


(and thus the seat


321


) is supported by a pair of legs


336


,


338


extending down from the frame member


334


to the ground. The rear edge of the seat


321


is positioned between about 10-20, and most preferably about 15 inches in front of the support


332


.




Preferably, the seat


321


tilts upwardly from a rear end which is closest the support


332


and a front end which is farthest from the support. In particular, the front of the two legs


338


is preferably slightly longer than the other leg, so that the seat


321


tilts upwardly at an angle of approximately 25-35, and most preferably about 30 degrees with respect to the horizontal.




The seat back


322


extends from the rear portion of the seat upwardly along the frame


334


. Preferably, the back


322


is about 20-40, and most preferably about 30 inches tall, terminating at approximately the same height as the posts.




As stated above, the frame


334


on which the back


322


is mounted extends at an angle vertically upward from the seat support portion to a connection with the support


332


, on upwardly past the support. Because the frame


334


rises at an incline, the back


322


on which it is mounted does also. In particular, a lower portion of the back


322


is positioned adjacent the rear edge of the seat


321


, and in front of the support


332


, and a top portion of the back


322


is located behind the support


332


. Preferably, the back


322


tilts rearwardly at an angle of between about 10 and 50 degrees with respect to the vertical.




In order to stabilize the support


332


in the area of the seat/back frame


334


, an “L”-shaped leg


340


extends first outwardly from the support


332


opposite the seat


321


, and then downwardly to the ground.




Weight-bar support means, preferably in the form of arms


326




a,b


are connected to the structure


320


and movable from a retracted position to an extended position. In particular, arms


326




a,b


identical to those described in conjunction with the weight bench set forth above, are mounted on the lugs


346




a,b.


As the mounting and construction of the arms


326




a,b


is preferably identical to the arms


26




a,b


described above, the description is omitted herefrom.




The top of each post


324




a,b


has a rearwardly sloping front face


354




a,b


to accommodate the rearwardly sloping arms


326




a,b.


Preferably, the sloping front faces


354




a,b


extend parallel to the sloping arms


326




a,b


and leave approximately 0.5-3 inches therebetween.




Use of this device


320


is as follows. A user locates a weight-bar (not shown), with or without additional weights thereon, on the device


320


. The user places the bar in a horizontal position, in the cradles of the arms


326




a,b


with the arms


326




a,b


in retracted position (as illustrated in FIG.


7


). In this position, the arms


326




a,b


support the ends of the bar.




The user sits on the seat


321


, leaning back with his back supported by the seat back


322


. When seated, the user faces away from the device


320


(in the same direction that the lugs


346




a,b


extend outwardly). The user or a spotter then moves the arms


326




a,b,


and thus the bar, into the lift-off or “extended” position (in this position, the arms


326


,


a,b


are in the position illustrated in FIG.


2


). The user moves the bar into lift-off position by pulling slightly on any portion of the bar or either arm


326




a,b,


pulling the arms


326




a,b


and bar thereon in the direction of the seated user. A spotter can move the bar into lift-off position for a user by grasping the handles on the arms


326




a,b


and pushing them forwards.




In either instance, the weight bar and arms


326




a,b,


along with any pulling or pushing force, rotate the arms to the lift-off position against the force provided by the spring or biasing means. Rotation of the arms


326




a,b


stops when the front edge thereof contacts the cushions on the lugs


346




a,b.


The cradle of the arms


326




a,b


prevents the bar from sliding, bouncing or rolling from the cradle, without regard to how quickly the arms are moved into position.




At this time, the bar is conveniently located slightly in front of the user, and adjacent his chest. The user reaches out, grasping the bar and lifting it from the arms


326




a,b.






As the user removes the bar from the arms


326




a,b,


the reduced weight biasing force is overcome by the return biasing force acting on the arms


326




a,b,


causing the arms to move back to their retracted position. Movement of the arms


326




a,b


stops when the stop on each arm contacts the rear cushion on each lug


346




a,b.






The user exercises by pressing the bar vertically upwardly above his chest, and then lowering it back down, in repeated fashion. Once done exercising, the user returns the bar back to the cradles of the arms


326




a,b.


The user pushes the bar outwardly until it hits the upwardly extending guide portions of the arms


326




a,b,


and then the user allows the bar to slide down along the guide portions into the cradles of the arms


326




a,b.


As with the previous exercises, a spotter is preferably present during all phases of the exercise.




If, when a user has completed exercising, he is unable to maintain the bar in a position of sufficient height that it will clear the cradle portions of the arms


326




a,b,


he can simply set the bar on the ends of the lugs


346




a,b.


The pins on the end of each lug


346




a,b


prevents the bar from rolling off the lugs


346




a,b.







FIG. 8

illustrates a forth embodiment of the present invention, a device


420


useful in either an “incline” press or “military” press exercise. In this form of the invention, the device


420


includes a user supporting platform in the form of a first seat member


421




a,


a second seat member


421




b


and a seat back


422


, and a weight-bar supporting structure in the form of two upwardly extending posts


424




a,b


and a weight-bar supporting arm


426




a,b


positioned on each post.




This form of the invention is nearly identical to the last, except for the addition of two post braces


460




a,b,c,d


extending from each post


424




a,b,


and a different seat configuration.




In this form of the invention, a first seat portion


421




a


extends horizontally outwardly from the support between the posts


424




a,b


in the same direction as the lugs


446




a,b.


A second seat portion


421




b


extends from the first seat portion


421




a.


The seat back


422


extends upwardly between the two seat portions


421




a,b.






The seat portions


421




a,b


are supported by a frame member


436


extending horizontally outwardly from the support


432


extending between the two posts


424




a,b.


A leg


440


extends downwardly from the frame member


436


to the ground to support the seat portions.




Preferably, the seat back


422


is movable between a first upright position and a second inclined position. In the position illustrated in

FIG. 1

, a first side


423




a


of the seat back


422


supports the back of a user when the user is seated on the first seat portion


421




a.


A second side


423




b


of the seat back


422


supports the back of a user when the user is seated on the second seat portion


421




b.






Means for moving the seat back


422


from a vertical to an inclined position are provided. Preferably, the means comprise a number of bores


434


located in the frame member


436


for engagement by a pin passing through a bore in a seat back support strut


438


. Other means may be employed, such as use of hydraulic cylinders, telescoping posts, or the like.




The second seat portion


421




b


is inclined. In particular, the second seat portion


421




b


rises at an angle of between about 20-40, and most preferably 30 degrees with respect to the horizontal.




The overall height of the first and second seat portions


421




a,b


can preferably be adjusted. In particular, each seat portion


421




a,b


is mounted on a post having bores passing therethrough for engagement by a spring-loaded pin.




As with the devices described above, this weight-bar support means in the form of movable arms


426




a,b


are mounted on the lugs


446




a,b.


The construction of the arms


426




a,b


are preferably the same as the arm


26


detailed above.




Use of this device


420


is as follows. A user locates a weight-bar (not shown), with or without additional weights thereon, on the device


420


. The user places the bar in a horizontal position, in the cradles of the arms


426




a,b


with the arms


426




a,b


in retracted position (illustrated in FIG.


7


). In this position, the arms


426




a,b


support the ends of the bar.




To do a “military” press exercise, the user places the seat back


422


in an upright or vertical position (as illustrated in FIG.


8


). The user then sits on the first seat portion


421




a


with his back pressed against the first side


423




a


of the seat back


422


. The user thus faces the arms


426




a,b.


Use of the structure is then identical to that illustrated in

FIG. 6

as described above.




If the user wishes to do an “incline” press exercise, the user reclines the seat back


422


so that it tilts rearwardly towards the arms


426




a,b.


The user accomplishes this task by removing the pin in the strut


438


, moving the strut


438


rearwardly, and then repinning the strut


428


to the frame


436


.




The user then seats himself on the second seat portion


421




b,


leaning back with his back supported by the second side


423




b


of the seat back


422


. In this position, the user faces away from the arms


426




a,b.


Use of the structure is then identical to the use of the structure illustrated in

FIG. 7

as described above.




In accordance with the present invention, numerous variations of the elements described above are possible for accomplishing the present invention.




For example, the platform


22


of the first form of the invention which supports the exerciser need not be directly connected to the support structure


20


. The support structure


20


of the present invention may simply comprise the posts


24




a,b,


with the lugs and arms connected thereto. In this form, the structure should include means for supporting the posts in stationary fashion, such as by anchoring the posts in concrete, bolting them to the floor, or providing additional stabilizing elements. A separate user supporting platform is then used in conjunction with the weight-bar support structure.




While the arms (


26




a,b,




226




a,b,




326




a,b,




426




a,b


) are described above as moving from the retracted to the lift-off position in rotatable fashion, the arm might be connected to the structure and move between these positions in a combination of translating and rotating, or solely translating movement.




Further, while the structures and devices


20


,


220


,


320


,


420


described above have two arms, it is possible that a single arm be used to support the weight-bar. In particular, a single arm which is moveable between a retracted and lift-off position and which includes a widened bar supporting portion may be used to support the bar. Alternatively, three or more arms may be provided for supporting the bar.




Also, the return means for moving the arms


26




a,b,




226




a,b,




326




a,b,




426




a,b


from the lift-off to the retracted position may include a helical spring, hydraulic or air actuated piston, electrically operated motor means, or other means for effectuating movement known in the art.





FIGS. 9 and 10

illustrate a modified arm


526


for use with any of the above-described forms of the present invention In general, the arm


526


is similar to the arm


26


described above, the arm


526


including a central portion


560


having flanges


558




a,b


extending downward from a first end thereof, and having a weight-bar supporting member


578


at a second end thereof. The weight-bar supporting member


578


is “J”-shaped, having a cradle


590


at one end, and an upwardly extending guide


592


. In addition, however, in this embodiment of the arm


526


, an insert


525


extends from a top end


598


of the guide downwardly along the guide to the cradle


590


.




The insert


525


is preferably a flat metal member which is bent into a “V”-shape, having a first end


527


, a second end


529


, and a bend


531


. The first end


527


is located on the side of the guide


592


opposite the cradle, and attached thereto by welding or the like. The insert


525


extends from the first end


527


along the back side of the guide and over the top end


598


of the guide, with the bend


531


of the insert extending over the top end


598


of the guide. The insert


525


extends from the bend


598


downwardly to the second end


529


which is located in the area defined by the cradle


590


.




The insert


525


may vary in width from approximately the same width as the guide


592


, to around half the width of the guide. The second end


529


terminates near enough the bottom of the cradle


590


that a weight-bar can not slip under the insert and become lodged between the insert and guide.




Because the insert


525


is constructed from a flat sheet of metal which is bent the sides of the insert can move with respect to one another. Because the first end


527


of the insert


525


is fixed to the guide


592


, the second end


529


extends, in its static state, outwardly into the cradle


590


, thus providing a biasing force.




The use and purpose of the insert


525


is as follows. As described above in conjunction with the description of the arm


26


, the cradle must have a width sufficient to hold a variety of different sized weight-bars placed therein. At the same time, however, the cradle must tightly hold the weight-bar so that when the arm moves back and forth, the weight-bar does not come out of the cradle. Further, if the bar is in contact with the front stem of only one cradle and the user pulls the bar forward, movement of only one arm is initially effectuated. This causes a “torquing” on the arms as created by the mass of the weight bar.




As disclosed above, in order to hold most weight bars, the cradle must have a width of about 1.5 inches. In some instances, however, a user may have a weight bar having a diameter smaller than the width of the cradle, such as 1.25 inches. If a bar which is smaller than the cradle is placed in the cradle, the weight-bar is not tightly held in the cradle and can bounce or twist out of the cradle.




The insert


525


of the present invention holds the weight-bar tightly in the cradle. In particular, the insert


525


presses the weight-bar forward against the front stem of the cradle, as illustrated in FIG.


10


.




It is possible for the insert


525


to be located on the front stem of the cradle, extending down along the stem into the cradle trough. It is also possible for the insert


525


to be attached to the guide somewhere along the length thereof rather than at the top.




It is also possible to mount several narrow inserts on the same arm. Use of several narrow insert strips allows the manufacturer of the device to manipulate the generated biasing force and the location of this force.




In an alternate form of the invention, the need for an insert


525


may be alleviated by having the weight-bar support member tilt forwardly with respect to the arm, instead of rearwardly as illustrated in FIG.


5


. The particular angle of tilt should then be selected so that when a weight-bar is placed in the arms in their resting position, the bar rolls forwardly against the front stem of each cradle.




It will be understood that the above described arrangements of apparatus and the method therefrom are merely illustrative of applications of the principles of this invention and many other embodiments and modifications may be made without departing from the spirit and scope of the invention as defined in the claims.



Claims
  • 1. A support structure for supporting a user and a weight-laden bar comprising:a user-engaging platform; a support structure including a platform-supporting portion and two posts that extend above the platform; an arm for holding a weight-bar pivotably connected to each of the posts, each arm movable between a first retracted position and a second weight-bar lift-off position; and return means for moving each arm from the lift-off position to the retracted position when a weight bar is removed from the arms in the lift-off position; wherein the arms are configured to support a weight-laden bar in both the first retracted position and the second weight-bar lift-off position and the arms are inclined in both the first retracted position and the second weight-bar lift-off position.
  • 2. The support structure of claim 1, wherein the platform supporting portion includes a cross-member extending between the posts.
  • 3. The support structure of claim 1, wherein each arm has a first end portion connected to a lug extending outwardly from each post.
  • 4. The support structure of claim 3, where the first end portion of each arm includes two downwardly extending flanges.
  • 5. The support structure of claim 3, wherein the first end portion of each arm includes a downwardly extending flange located on each of first and second sides of each lug.
  • 6. The support structure of claim 3, wherein the first end portion of each arm is connected to the corresponding lug with at least one pin.
  • 7. The support structure of claim 6, wherein a first pin passes through a first side of each arm into said lug, and a second pin passes through a second side of said arm into each lug.
  • 8. The support structure of claim 7, wherein the pins include a smooth portion for engaging a sleeve located in each side of each arm.
  • 9. The support structure of claim 1, wherein each arm includes a first end portion and second end portion, the first end portion connected to one of the posts and the second end portion including means for supporting a weight-bar.
  • 10. The support structure of claim 9, wherein the means for supporting a weight-bar includes a U-shaped cradle.
  • 11. The support structure of claim 10, wherein a bottom portion of the cradle is substantially flat.
  • 12. The support structure of claim 1, further including a weight-bar guide connected to each arm.
  • 13. The support structure of claim 12, wherein each guide comprises a member extending upwardly and sloping away from the user engaging platform.
  • 14. The support structure of claim 1, further including a user engaging handle connected to each arm.
  • 15. The support structure of claim 1, wherein the return means comprises at least one spring.
  • 16. The support structure of claim 15, wherein each spring has a first end portion connected to one of the arms and a second end portion connected to the corresponding post.
  • 17. The support structure of claim 16, wherein each second end portion of each spring engages a slot located in each lug located on each post.
  • 18. The support structure of claim 16, wherein each first end portion of each spring is located in a hollow portion of each arm.
  • 19. The support structure of claim 1, further including stop means for limiting the movement of each arm.
  • 20. A weight-bar supporting structure comprising:a user-supporting platform; a support structure including two upwardly extending posts; an arm pivotably connected to each of the posts, each arm movable between a first retracted position and a second weight-bar lift-off position; and return means for moving the arms from the lift-off position to the retracted position when a weight bar is removed from the arms in the lift-off position; wherein when the arms are in the lift-off position, a weight-bar supported on the arms is adapted to be positioned above a user's chest and the arms are inclined in both the lift-off and retracted positions.
RELATED APPLICATIONS

This application is a continuation of prior application Ser. No. 08/849,926 filed on Jun. 2, 1997 now abandoned; which is a continuation of 35 U.S.C. §371 to application PCT/US95/15583 filed on Dec. 4, 1995; which claims priority from application Ser. No. 08/349,749 filed Dec. 2, 1994, now issued U.S. Pat. No. 5,509,076.

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Number Name Date Kind
3552748 Thomas Jan 1971 A
4302009 Johnson Nov 1981 A
4602785 Rockwell Jul 1986 A
4637608 Owens et al. Jan 1987 A
4890831 Craig Jan 1990 A
4928961 Madden May 1990 A
5151072 Cone et al. Sep 1992 A
5162031 Watson Nov 1992 A
5281193 Colbo, Jr. Jan 1994 A
5472397 Ammoscato et al. Dec 1995 A
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Foreign Referenced Citations (4)
Number Date Country
3744449 Dec 1987 DE
29501631 Feb 1995 DE
0147908 Apr 1984 EP
1443892 Apr 1987 SU
Continuations (2)
Number Date Country
Parent 08/849926 Jun 1997 US
Child 09/447925 US
Parent PCT/US95/15583 Dec 1995 US
Child 08/849926 US