The present disclosure relates to exercise machines. More particularly, the present disclosure relates to exercise machines including selectable resistance loadings. Still more particularly, the present disclosure relates to exercise machines with selectable resistance loadings in the form of associating one or more weight plates with a user engagement interface.
Exercise may take several forms including aerobic or cardiovascular training, strength training, flexibility training, and balance training. With particular regard to strength training, two common forms include free weights and exercise machines. In the case of weight training exercise machines, it is common for the machines to include a user interfacing portion such as a graspable bar or handle, a foot press, a leg pad, or other interface. The interface may be connected to a cable or series of cables that may pass through one or a series of pulleys and may be connected to one or more weight plates.
A common exercise machine may include a weight stack where each plate in the stack is adapted to slide along two guide rods. The cable in these machines may be attached to a selecting rod passing through the weight stack and having multiple holes adapted to align with holes in each of the plates in the stack. A selection pin may be inserted into one of these multiple holes via a hole in a respective weight plate thereby engaging the selected plate, and all of the plates above it, with the selecting rod. As such, when the user manipulates the user interfacing portion, the cable pulls on the selecting rod causing the selected weights of the weight stack to be lifted along the two guide rods. Accordingly, a user may repetitively lift the selected weights to develop the muscular fatigue common in weight training.
In one embodiment, an engagement interface for an exercise machine for selectively engaging a carriage with one or more resisting elements may be provided. The engagement interface may include one or more engagement devices arranged on the carriage and an engagement feature positioned on a resisting element. Each engagement device may include a first portion and a second portion extending from the first portion. The engagement feature may be configured for engagement by at least one of the one or more engagement devices. The engagement feature may include a body attached to the resisting element, at least one wall extending generally perpendicular to the body, a first tab extending from the at least one wall in a first direction and a second tab extending from the at least one wall in a second direction opposite the first direction. The first and second tabs may be configured to engage at least one of the one or more engagement devices.
In another execution, an exercise machine having two or more selectable loadings may be provided. Each loading may include one or more resisting elements engaged with a carriage. The machine may include a resistance system including the one or more resisting elements. The resisting elements may include vertically oriented weight plates arranged in a deck. The machine may also include a carriage, the engagement interface described above for selectively engaging the carriage with the resistance system, a single guide pole for guiding travel of the carriage, and a guide member configured to inhibit swinging of the carriage about the guide pole.
In one execution, the exercise machine may include a frame and two or more selectable loadings, each loading including one or more resisting elements engaged with a carriage. The machine may include a resistance system that includes the one or more resisting elements, a carriage, and one or more engagement devices arranged on the carriage. The one or more resisting elements may take the form of vertically oriented weight plates arranged in a deck. Each engagement device may include a first portion, and a second portion extending from the second portion. An engagement feature may be positioned on a resisting element and configured to engage at least one of the engagement devices. The engagement feature may include a body joined to the resisting element, at least one wall extending generally perpendicular to the body, a first tab extending from the at least one wall in a first direction, and a second tab extending from the at least one wall in a second direction opposite the first direction. The first and second tabs may be configured to engage at least a portion of at least one of the engagement devices. The carriage may be guided by a single guide pole operatively associated with the frame and the carriage. The guide pole and the carriage may be configured to guide travel of the carriage along the guide pole. A guide member may be operatively associated with the frame and the carriage. The guide member and the carriage may be configured to resist swinging of the carriage about the guide pole.
While many executions of the exercise machine are disclosed herein, still others will become apparent to those skilled in the art from the following detailed description, which shows and describes illustrative embodiments of the exercise machine. As will be realized, by those of ordinary skill in the art upon reading the following disclosure, the exercise machines disclosed herein may be modified in various aspects, all without departing from the spirit and scope of the exercise machines described herein. Accordingly, the drawings and detailed description are to be regarded as illustrative in nature and not restrictive.
The present disclosure relates to an engagement interface between a carriage and a resistance system in a loading portion of an exercise machine. The carriage may include one or more engagement devices. Each engagement device may be configured to selectively engage at least one weight plate via an engagement feature on the weight plate to selectively join a desired number of weight plates to the carriage. The engagement devices may be positioned in or along a shaft, and the carriage may be guided in the machine by a single guide pole. The carriage may include a guide pole engaging portion adapted to engage the guide pole and resist torsion effects on the carriage from unbalanced loadings on the carriage. The weight plates may be vertically oriented and arranged in a horizontal spaced apart deck and may be positioned to be selectively joined to the carriage by one or more engagement devices. The weight plates may be generally T-shaped and supported near their outer edges by a rail extending along each side of the vertically oriented weight plates.
Referring now to
With particular regard to the frame 106, the frame 106 may include a base 112, an offsetting portion 114, and a guide structure 116. The base 112 may be configured to provide a stable structure for supporting and/or housing the resistance system 108 and the carriage 110. The offsetting portion 114 may extend from the base 112 and may include a junction mechanism 118 at an end opposite the base 112. The frame 106 may be configured to resist compressive forces induced as the junction mechanism 118 is relied upon to support the resistance system 108 as the resistance system 108 is lifted away from the base 112. For example, in one embodiment of a frame 106, the junction mechanism 118 may be in the form of a pulley such that a tension member, which may be a cable or the like, joined to the user interface 102 may pass therethrough and extend to the carriage 110 to operatively join the carriage 110 to the user interface 102. Force on the associated user interface 102 may induce tension in the cable that may be resisted by the resistance system 108 and, in turn, the compressive strength of the frame 106. Accordingly, the base 112 and the offsetting portion 114 may include tubular structures, wall type structures, or other structures configured to maintain their shape under compressive loading. The guide structure 116 may include tracks, guide rods, guide cables, guide wires, tubes, or other structures configured to guide the motion of the carriage 110 and/or the resisting elements of the resistance system 108 in the frame 106.
In the particular embodiment shown in
Returning to
The carriage 110 may include one or more engagement devices 136 for engaging one or more of the resisting elements 138 of the resistance system 108. The carriage 110 may also include a selection mechanism 140 for selecting the amount of resistance desired. With reference to
In some embodiments of a selection mechanism 140 and associated support system 142, as shown in
With reference to
In one alternative embodiment, the lever 141 may be omitted and the smaller increments of weight can be added through turning the dial. In this embodiment, a similar large increment (e.g., 15 lbs) can be provided on the dial. In addition, smaller (e.g., 5 lb) increments may be included. The dial may include tripping tabs that trip a serrated gear every third gradation of dial turn for example. In this embodiment, as the dial is turned to 5 lbs, a first 5 lb add-on plate is picked by a engagement device on a add-on shaft. As the dial is turned to 10 lbs, and additional 5 lb add-on weight is selected. As the dial is turned to 15 lbs, the add-on weights are unselected and the tripping tab encounters a tooth on a gear on a main shaft causing the main shaft to engage a 15 lb weight. This process continues to the full weight of the weight stack. In this particular embodiment, the total weight of weights in the weight stack may be 240 pounds (“lbs”).
The type of selection mechanism 140 and the type of support system 142 may depend, in part, on the type of engagement device 136 that is provided. In some embodiments, a longitudinally actuated engagement device 136 may be provided. The longitudinally actuated engagement device may include a slide type selection mechanism 140 and support system 142, where the selection mechanism 140 includes a handle or series of handles that slide along a graded scale, and the support system 142 in the form of a bar or rod extends from the handle to the engagement device 136. Longitudinal motion of the support system 142 may cause a engagement device 136 to longitudinally engage a resisting element 138. In another embodiment of a longitudinally actuated engagement device 136, a dial type selection mechanism 140 may be combined with a screw type support system 142. In this embodiment, a rotating dial may allow for selection of a particular resistance, and the rotation of the dial may turn a support system 142 in the form of a screw which may cause longitudinal motion of a engagement device 136 to longitudinally engage a resisting element 138. Rack and pinion type interfaces between the support system 142 and the engagement devices 136 may also be used to change the direction of travel of the engagement device 136 relative to the support system 142. Additionally, pivot pins may be provided to cause engagement devices 136 to swing in and out of engaged positions with resisting elements 138.
Turning now to
Referring particularly to
Additionally, depending on the particular position and purpose of the engagement device 136, all or a portion of the width 154 of a second portion 146 may be omitted. For example, as shown for the middle engagement device 136 in
The engagement devices 136 may include a wide range of sizes depending, in part, on the size of the loading portion 104 of the machine 100 and the forces induced on the engagement devices 136 by the resisting elements 138. In some embodiments, the disc type engagement devices 136 shown may have a diameter, measured to the outer face of the second portion 146, ranging from approximately 1 inch to approximately 12 inches. In another embodiment, the diameter may range from approximately 2 inches to approximately 6 inches. In another embodiment, the diameter may be approximately 3½ inches. In one embodiment, the width 154 of the flange or second portion 146, for example an engagement device 136 with a reaching or first portion 144 and a flange or second portion 146 defining a T-shape, may range from approximately ¼ inch to approximately 2 inches. In another embodiment, the width 154 may range from approximately ½ inch to approximately 1 inch. In still another embodiment, the flange or second portion 146 may have a width 154 of approximately ¾ inch.
The engagement devices 136 may be adapted for positioning along a support system 142 including a shaft. Accordingly, with reference to
Many arrangements may be provided for the engagement device 136 including L-shapes, J-shapes, T-shapes, arrow shapes (e.g., ↑) or other shapes allowing for engagement with an engagement feature 148. For example, a C-shape may be used where the reaching or first portion 144 is formed from a first portion of a C-shape and the second portion 146 is a continuation of the reaching or first portion 144 by way of the remaining portion of the C-shape. Other shapes may also be provided. Depending on the type of engagement feature 148 being engaged, the engagement device 136 may be an extruded form of the shapes described or may be limited to the shape described. For example, with regard to an L-shape, an extruded form of a L-shape may be provided similar to a steel angle. In contrast, where an extruded form is not provided, for example with regard to a J-shape, the engagement device 136 may be in the form of a hook. With regard to extruded shapes, the extrusion may be a linear extrusion, radial extrusion, rectangular extrusion, or other type of extrusion. The term extrusion here is used to describe the shape of the engagement device relative to a starting or cross-sectional shape and does not require that the element or elements be made with an extrusion process.
Referring again to
Referring to
Turning now to the resistance system 108, and referring particularly, to
The weight value of any given weight plate may be adjusted through adjustment of the plate thickness, the plate profile, the material used, and/or through omitting portions from the body of the weight. With reference to
While the resisting elements 138 shown are in the form of weight plates, the resisting elements 138 may take the form of springs, elastic elements, or any other suitable resisting element. In the case of weights, the weights may be in the form of plates, bars, or other masses with the same or different weight values where combinations of the weights may be used to provide several different loading conditions. In the case of springs or other elastic elements such as, for example, flexible rods, several elastic elements may be provided with the same or different elasticity where combinations of the elastic elements may be used to provide several different loading conditions. The resisting elements 138 may be adapted for engagement by one or more of the engagement devices 136 of the carriage 110. As such, the resisting elements 138 may have an engagement feature 148 positioned on the resisting element 138 such that it is accessible by an engagement device 136. The engagement feature 148 may be any shape allowing for the engagement devices 136 of the carriage 110 to selectively engage and disengage the resisting the elements 138. For example, the engagement feature 148 may be in the form of a hole for receiving a hook type engagement device 136. In another example, the engagement feature 148 may be in the form of a ledge for engagement by an L-shaped engagement device 136.
The resisting elements 138, when taking the form of weight plates, may include an engagement feature 148 positioned along the top edge 182 of the plates. The engagement feature 148 may be adapted to be engaged by the engagement devices 136 described with respect to
Tabs 212 may be provided extending into the trough 208 from the sidewalls 206. The tabs 212 may be positioned generally centered along the length of the trough 208 and may be in general alignment with each another. The tabs 212 may extend into the trough 208 toward one another in opposing directions and may stop short of contacting one another to define a disc gap 214 between the tabs 212 slightly larger than the thickness of the generally planar disc of a respective engagement device 136. The sidewalls 206 may be generally rectangular and may provide for a relative deep trough 208, or the sidewalls 206 may be somewhat peaked toward their mid-length at the location of the tabs 212. In some embodiments, the peaked sidewalls 206 may be associated with lighter or less heavy weight plates, and the rectangular sidewalls 206 may be associated with heavier plates.
With reference to
Referring now to
Referring again to
All directional references (e.g., upper, lower, upward, downward, left, right, leftward, rightward, top, bottom, above, below, vertical, horizontal, clockwise, and counterclockwise) are only used for identification purposes to aid the reader's understanding of the examples of the present invention, and do not create limitations, particularly as to the position, orientation, or use of the invention unless specifically set forth in the claims. Joinder references (e.g., attached, coupled, connected, joined, and the like) are to be construed broadly and may include intermediate members between a connection of elements and relative movement between elements. As such, joinder references do not necessarily infer that two elements are directly connected and in fixed relation to each other.
In some instances, components are described with reference to “ends” having a particular characteristic and/or being connected with another part. However, those skilled in the art will recognize that the present invention is not limited to components which terminate immediately beyond their points of connection with other parts. Thus, the term “end” should be interpreted broadly, in a manner that includes areas adjacent, rearward, forward of, or otherwise near the terminus of a particular element, link, component, part, member or the like. In methodologies directly or indirectly set forth herein, various steps and operations are described in one possible order of operation, but those skilled in the art will recognize that steps and operations may be rearranged, replaced, or eliminated without necessarily departing from the spirit and scope of the present invention. Changes in detail or structure may be made without departing from the spirit of the invention as defined in the appended claims. Accordingly the matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative only and not limiting.
This application claims the benefit, under 35 U.S.C. §119(e), of U.S. Provisional Application No. 61/319,567, entitled “Engagement Interface for an Exercise Machine” and filed on Mar. 31, 2010, which is hereby incorporated by reference herein in its entirety.
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