Patent Application
20160263461
The present invention relates to the field of exercise devices—specifically to devices that protect a weight lifter when lifting free weights such as a barbell or a pair of dumbbells when assistance from a human spotter is unavailable.
Weightlifting is enjoyed by millions of people in pursuit of better health and increased strength. Lifting free weights, such as barbells or a pair of dumbbells that are unconnected to any stationary structure, is widely regarded as a better form of weightlifting than using a weightlifting machine, because the lifter is free to use their normal range of movement for their body type when lifting. However, lifting free weights presents a greater variety of risks for personal injury to both the lifter and to others who may be in the vicinity of the lifter than does using a weightlifting machine. The variety of possible risks in lifting with free weights includes a greater variety of types of muscle strain involving a greater variety of muscles, as well as the possibility of dropping a barbell on a part of the lifter's body, including the neck.
It is this greater variety of risks that long ago led to the introduction of an ever increasing variety of weightlifting machines. Generally, weightlifting machines increase safety by limiting the range of possible movement made by the lifter during the lifting exercise to little more than a single straight or gently arcing movement. This greatly simplifies the lifting exercise by relieving the lifter of having to exert additional energy to constrain the movement of weights in directions other than along the path of movement that is intended during the lifting exercise. Also, weightlifting machines generally eliminate the need for a lifter to initially lift weights from a rack or floor to a starting position from which the lifting exercise is to begin in a so-called “pre-lift” phase occurring prior to the intended lifting exercise, itself, during a so-called “lifting” phase. Also generally eliminated is the need for the lifter to lower weights back down to the rack or floor after the lifting exercise in a so-called “post-lift” phase occurring after the lifting phase. Many lifters find the exertion required during the pre-lift and post-lift phases can actually be greater than the exertion that occurs during the lifting exercise, itself, in the lifting phase. By eliminating the pre-lift and post-lift phases, weightlifting machines can preclude any occurrences of accidents during those phases. It is for these reasons that weightlifting machines are often viewed as a good option for novice weightlifters and/or individuals who only occasionally lift weights.
Unfortunately, while the imposition of such limits in movement by weightlifting machines may greatly increase safety, and while the elimination of the pre-lift and post-lift phases by weightlifting machines may be seen as positive benefits that even avid lifters may appreciate, those same imposed limits in movement are seen as having disadvantages. Among the disadvantages are that removing the need for additional exertion by a lifter to constrain the movement of weights in directions other than along the path of movement can remove the opportunity to develop other muscles than those strictly required to exert weightlifting force along that constrained path of movement. In other words, muscle development may become limited to only particular muscles such that some muscles in a part of the body may become markedly more developed than other muscles in that same part of the body. It is this possible result that often causes avid lifters to choose free weights over weightlifting machines, and thereby accept the increased potential for accidents and injury.
An example of one free weight upper body pressing exercise is the flat-bench dumbbell press. First, after retrieving a pair of dumbbells from a rack or the floor, the lifter begins the pre-lift phase while sitting on a bench with a pair of dumbbells, one in each hand and resting one atop each knee. The lifter then uses their leg strength in combination with their arm and shoulder strength to bounce up the dumbbells with their knees and raise the dumbbells with their hands into the air as the lifter falls backwards onto the bench.
Second, in the lifting phase, the lifter performs repetitions (reps) of the lifting exercise, itself, which entails moving the dumbbells repeatedly between an upper position elevated well above the level of the chest and a lower position that is usually at about the level of the chest. The lower position varies to some degree among lifters, however it is critical to avoid too low or deep a movement, which can lead to possible injury to the shoulder joint and surrounding muscles.
Third is the post-lift phase, which usually begins after the lifter has either performed the desired number of reps or is unable to lift the dumbbells back to the upper position to perform any more reps. If the lifter is able to lift the dumbbells again to the upper position, then the lifter may perform a reversal of the pre-lift phase during the post-lift phase, and then returns the dumbbells safely to the storage rack or floor. However, if the lifter is unable to lift the dumbbells again to the upper position then the lifter is in a potentially precarious position and must find a safe way to return the dumbbells back to either the rack or to the floor. If lifter attempts to lower the dumbbells to the floor, then they risk the aforementioned damage to their shoulder joints. If the lifter chooses to drop the dumbbells to the floor, then they risk potential injury to bystanders or themselves and/or damage to equipment, personal property and even the floor, itself.
An example of a free weight lower body exercise is the standard squat or “squat.” The pre-lift phase typically entails removing a weighted barbell from hooks or catches of a cage or rack structure that supports the barbell at close to an upper position of the reps of the exercise during the lift phase. Correspondingly, the post-lift phase typically entails returning the barbell to being supported by those hooks or catches. The cage or rack structure may also provide stops set at position that is slightly below the lower position that the lifter is to lower the barbell to before returning to the upper position in each rep. The vertical position of the hooks or catches that serve to support the barbell near the upper position before and after the exercise, and the vertical position of the stops that are able to support the barbell near the lower position should be adjustable to fit the individual needs of the lifter.
During the pre-lift phase, the lifter centers themselves under the barbell while it is supported by the hooks or catches which may be set at a vertical position just below the level of the lifter's shoulders. The lifter then engages the barbell, resting it behind them and upon their lower neck/upper back while gripping the barbell with both hands just outside of their shoulders or wider. The lifter then lifts the weighted barbell off of the hooks or catches and takes one or two steps backward so that the supports do not hinder the vertical travel of the barbell between the lower and upper positions during the lift phase. The lifter then places their feet at or near shoulder width in a position that will not change during performance of the reps of the exercise, and that will provide balance and stability throughout those reps. The lifting phase begins when the lifter, while keeping their back straight or slightly arched, bends their knee joints to lower the barbell to the lower position at which their upper leg reaches an angle that is parallel or below parallel to the floor. The lifter then straightens their knees to lift the barbell back to the upper position, thereby completing one rep.
Once the desired number of reps is completed, the post-lift phase begins with the lifter taking a step or two forward to move the barbell back towards the hooks or catches onto which the lifter lowers the barbell. The lifter may then step out from under the barbell, thereby concluding the exercise. There is potential for the lifter to incur injury during any of the three phases, such as a sore neck or paralysis. If, during any of the three phases, the lifter feels a need to get the barbell off of their back immediately, the only way to achieve this is for the lifter to release their grip on the barbell, let it roll out of their hands and off their shoulders backwards, and let it fall down onto the floor. This presents the possibility of injury to the lifter and/or bystanders, as well as damage to the cage or rack, damage to the floor and/or damage to the barbell, itself.
Various efforts have been made by others to address the potential for injury and/or damage to property that may arise during weightlifting with free weights. Disclosed in U.S. Pat. No. 4,306,715 issued to Sutherland is a barbell storage and exercise rack with a pair of cradles to support a barbell near the upper position and a pair of safety side rails to prevent the barbell from inadvertently falling on the user. However, this device addresses safety concerns only during the start and end of each rep of the squat movement during the lifting phase.
Disclosed in U.S. Pat. Pub. No. 2012/0157271 filed by Bauer is a dumbbell support rack to ease the beginning an exercise with a dumbbell, and to secure the dumbbell after an exercise has been performed. However, this device focuses only on the upper position at the start and end of each rep of a dumbbell press exercise, and provides no other assistance during any other part of the lifting phase. Also, the assistance at the end of each rep is only available if the lifter is able to lift the dumbbell back up to the upper position where it can be deposited into the dumbbell support rack. Otherwise, if the lifter is not able to lift the dumbbell back up to the upper position, then the lifter must still drop or lower the dumbbell onto the floor.
Disclosed in U.S. Pat. No. 5,716,306 issued to Gallay is an apparatus that includes two vertical ropes, two rope clamps that each attach a barbell bar to one of the ropes, and a control bar that controls the rope clamps. While this apparatus addresses safety concerns in all three phases, it must be rigidly affixed to a barbell bar such that changing barbells is precluded, and hence, this apparatus is not suited for use with dumbbells.
The present invention addresses such needs and deficiencies as are explained above by providing either one or a pair of exercise weight support devices that each include a retractable belt to enable suspension from a ceiling or other overhanging structural support, a retracting reel mechanism to selectively allow vertical movement of a supported weight, and a trigger handle operable in a manner akin to a dead man's switch to disallow lowering of the supported weight when the trigger handle is not continuously operated by a lifter. An upper end of the belt may be attached to the ceiling or other overhanging structural support by a carabiner or other hardware, and the retracting reel mechanism and the trigger handle may be co-located at the lower end of the retractable belt to enable the trigger handle to control operation of the retracting reel mechanism.
The retracting reel mechanism may incorporate a spring to tend to urge a spool to which the lower end of the belt is attached to wind up the belt to take slack out of the belt. The retracting reel mechanism may incorporate either a ratchet mechanism or a simpler brake mechanism to selectively stop at least the unwinding and paying out of the belt from the spool under the control of the trigger handle. The ability to selectively stop the paying out of the belt from the spool provides the ability to selectively stop the lowering of a supported barbell, dumbbell or other form of free weight used in weightlifting.
Each exercise weight support device may be used to reduce risk of injury and/or damage to property during a pre-lift phase by enabling a dumbbell, part of a barbell, or any of a variety of other types of weights used for weightlifting to be suspended from the ceiling or other overhanging support structure at a desired height that serves as a starting point for performing the reps of a lifting phase. Such suspension of weights enables the lifter to take whatever time is needed to position themselves and/or to make any other preparations for the lifting phase.
Each exercise weight support device may be used to reduce risk of injury and/or damage to property during a lifting phase and/or a post-lift phase by allowing a lifter to stop their performance of a rep mid stride if they should determine that they are unable to complete a rep. The lifter need only to let go of the trigger handle, thereby allowing the trigger handle to retract under the force exerted by one or more springs to an engaged position in which either the teeth of one or more ratchet gears are engaged or a simpler brake mechanism is engaged to stop at least the paying out of the belt from the retracting reel mechanism, thereby causing a weight that the lifter had ceased to lift to simply remain suspended at the height at which the lifter can let go of the trigger handle. Thus, if a lifter encounters difficulties in continuing to perform reps of a lifting exercise, the lifter does not need to allow the barbell, dumbbell or other weight they were lifting to fall.
It should be noted that although the discussion herein focuses on the use of embodiments with barbells and dumbbells, other embodiments are possible that may be used and/or may be configured for use with other types of free weights used in weightlifting.
A fuller understanding of what is disclosed in the present application may be had by referring to the description and claims that follow, taken in conjunction with the accompanying drawings, wherein:
Referring to
The belt 9 may be formed from a length of relatively flat meshed webbing material similar to what may be employed in the making of seatbelts and/or tie-down straps for securing cargo, or any other suitable material for forming a belt with a tensile strength sufficient to support at least the weight of a dumbbell or part of the weight of a barbell. By way of example, at least a portion of the belt 9 may be made from one or more of woven polyester, nylon, polypropylene, Dyneema, Kevlar or other similar materials. The exercise weight support device 100 may be suspended by an upper end of the belt 9 from a ceiling or other overhead supporting structure, such as the metal framework of a cage or other structure of a piece of exercise equipment within a gym that is also capable of supporting the weight of a dumbbell or part of the weight of a barbell. An advantage of the use of the belt 9, with its relatively flat and wide cross-section, over a rope or cable of circular cross-section is the greater tendency for such a belt to resist twisting.
The upper end of the belt 9 may be formed into a loop 8 to wrap around a carabiner 7 and/or other hardware (e.g., a steel S-hook) that may be attached to the upper end of the belt 9 and used to engage a beam or other structure of a ceiling, or of some other overhead supporting structure. Alternatively, the upper end of the belt 9 may be formed into a loop 8 to directly wrap around such a beam or other overhead supporting structure. Such formation of the loop 8 may be through stitching of the upper end of the belt 9 onto a lower portion of itself near the upper end. As another alternative, the upper end of the belt 9 may not be formed into a loop at all, leaving the upper end of the belt 9 free to be wrapped around, clamped to and/or tied to a portion of ceiling structure or other overhead supporting structure. Still other approaches to enabling the upper end of the belt 9 to engage a portion of a ceiling or other overhead supporting structure will occur to those skilled in the art.
The lower end of the belt 9 may be wound around a spool 13 of the retracting reel mechanism 26 into which the belt 9 may be retracted and from which the belt 9 may be paid out to either shorten or lengthen, respectively, the portion of the belt 9 that extends upwards from the retracting reel mechanism 26 to a ceiling or other overhead supporting structure. The retracting mechanism 26 may include a torsion spring 20 housed within the core of the spool 13 and/or another component that tends to urge the spool 13 to rotate in a manner that retracts the belt 9 into the retracting reel mechanism 26, thereby tending to take up any slack in the belt 9 by tending to wrap more of the belt 9 around the spool 13. The amount of force applied by such a torsion spring or other component to take up slack in the belt 9 may be selected to balance out the weight of much of the exercise weight support device 100.
The outer frame 6 may be formed from rigid steel tubing cut to define a support plate to which the retracting reel mechanism 26 may be attached and to define a pair of spaced-apart and substantially identically configured hooks 3 and 4. More broadly, it may be deemed desirable to make many of the components of the exercise weight support device 100 from steel, or from a lighter weight rigid material such as carbon fiber. As depicted, one or more mounting holes 28 may be formed through the support plate to enable the retracting reel mechanism 26 to be attached thereto with one or more sets of bolts 22 and nuts 23 to enable the weight of a dumbbell or part of the weight of a barbell carried by the outer frame 6 to be supported by the retracting reel mechanism 26. Alternatively, any of a variety of other mounting formations, including and not limited to slots, tabs, hooks, standoffs, keyholes, etc. may be formed in and/or otherwise incorporated into the support plate of the outer frame 6 to enable the retracting reel mechanism 26 to be attached thereto.
The pair of hooks 3 and 4 may be spaced apart by a distance selected to be wide enough to allow a hand of a lifter to be inserted therebetween, but also narrow enough to allow the hooks 3 and 4 to fit between the weights of dumbbell as the bar of the dumbbell that extends between those weights is inserted into the interior spaces defined by each of the hooks 3 and 4. A cradle 5 may bridge between portions of the interior spaces defined by each of the hooks 3 and 4, and may form a curving trough within which such a bar of a dumbbell or a bar of a barbell may be seated upon being inserted into the interior areas defined by the hooks 3 and 4.
Thus, with a single one of the exercise weight support devices 100 suspended by the upper end of the belt 9 from a ceiling or other overhead supporting structure, a single dumbbell may be suspended and supported therefrom by inserting the bar thereof into the interior spaces defined by the hooks 3 and 4, and seating it within the trough defined by the cradle 5. Alternatively, with a spaced apart pair of the exercise weight support devices 100 suspended by the upper ends of the belts 9 of each from a ceiling or other overhead supporting structure, a barbell may be suspended and supported therefrom by supporting each of two spaced apart portions of the bar thereof within a separate one of the pair of exercise weight support devices 100 in a similar manner.
The trigger handle 19 may be movable between an engaged position in which the exercise weight support device 100 may be caused to support a dumbbell or part of a barbell, and a disengaged position in which exercise weight support device 100 may not provide such support. In the disengaged position, the trigger handle 19 is moved by a lifter into relatively close proximity to the bar of a dumbbell or a barbell that has been inserted into the interior areas defined by the hooks 3 and 4, and that has been seated within the trough defined by the cradle 5 (e.g., close enough to put the trigger handle 19 in contact with the bar or close enough that a finger tip cannot be inserted therebetween). In the engaged position, the trigger handle is allowed to be retracted from being in close proximity with the bar of such a dumbbell or barbell by one or more springs 14, 15 of the retracting reel mechanism 26 (e.g., retracted far enough away that a hand may be inserted between the trigger handle 19 and the bar).
With the trigger handle 19 allowed by a lifter to be retracted to the engaged position by the one or more springs 14, 15, the retracting reel mechanism 26 is caused to become engaged in a manner that prevents any more of the belt 9 from being unwound and paid out from the reel 13. As a result, with the exercise weight support device 100 suspended from overhead by the upper end of the belt 9, allowing the trigger handle 19 to be retracted to the engaged position triggers the retracting reel mechanism 26 to prevent the exercise weight support device 100 from being pulled further downward and away from the upper end of the belt 9 by either a lifter or the weight of either a dumbbell or at least part of a barbell. Thus, with the trigger handle 19 allowed by a lifter to retract to the engaged position, a dumbbell or at least part of a barbell supported within the cradle 5 and the hooks 3 and 4 is able to be suspended by the exercise weight support device 100 from a ceiling or other overhead support structure to which the upper end of the belt 9 is attached. In this way, one of the exercise weight support devices 100 may be caused to suspend a dumbbell or part of a barbell from a ceiling or other overhead supporting structure at a desired height, such as an upper position of a lifting exercise.
However, with the trigger handle 19 moved to the disengaged position against the force of the one or more springs 14, 15, the retracting reel mechanism 26 is caused to disengage to the extent of allowing the belt 9 to be both freely retracted to be wound about the spool 13 to take up slack in the belt 9 and freely unwound from the spool 13 and paid out. As a result, with the exercise weight support device 100 suspended from overhead by the upper end of the belt 9, moving the trigger handle 19 to the disengaged position triggers the retracting reel mechanism 26 to allow the exercise weight support device 100 to be either pulled further downward and away from the upper end of the belt 9, or to be lifted upward and toward the upper end of the belt 9 with the retracting reel mechanism 26 rewinding the belt 9 about the spool 13 to take up slack in the belt 9 as such upward lifting occurs. Thus, with the trigger handle 19 moved to the disengaged position, a dumbbell or at least part of a barbell supported within the cradle 5 and the hooks 3 and 4 is able to be freely raised or lowered by a lifter during the performance of a rep of a lifting exercise, with the belt 9 able to be freely retracted into or paid out from the retracting reel mechanism 26 as such raising and lowering for each rep occurs.
Thus, by allowing the trigger handle 19 to remain in the engaged position while the exercise weight support device 100 is suspended from overhead by the upper end of the belt 9, the exercise weight support device 100 can be caused to support a dumbbell or a portion of a barbell at a suspended vertical height selected by a lifter until the lifter is ready to perform reps of a lifting exercise. The lifter may then trigger the reel mechanism 26 to disengage to the extent of allowing those reps to be performed without interference by moving the trigger handle 19 to the disengaged position against the force of the one or more springs 14, 15 as the lifter performs those reps.
Upon completion of those reps or upon the lifter realizing that they are not able to continue performing those reps, the lifter need only let go of the trigger handle 19 to allow the trigger handle 19 to be retracted to the engaged position by the one or more springs 14, 15 to thereby cause the retracting reel mechanism 26 to once again become engaged to the extent of preventing the exercise weight support device 100 from being further pulled downward by the weight of the dumbbell or the weight of part of the barbell. In this way, both the lifting phase and the post-lift phase of a lifting exercise may be made considerably safer through the ability to cause the exercise weight support device 100 to selectively support the weight of a dumbbell or at least a portion of a barbell. There is no need for a lifter to drop dumbbells or a barbell in instances where the lifter realizes that they are not able to continue performing reps of a lifting exercise.
The exercise weight support device 100 may also be used to make the pre-lift phase of a lifting exercise safer by reducing the exertion required of the lifter to prepare for the lifting phase, and by eliminating the need to perform coordinated maneuvers involving multiple limbs to get dumbbells or a barbell into position to begin the lifting phase. With the trigger handle 19 moved to the disengaged position against the force of the one or more springs 14, 15, each of a pair of the exercise weight support devices 100 may first be moved vertically to whatever height is desired as the starting point for a lifting exercise. Once at the desired height, the trigger handle 19 of each of the exercise weight support devices 100 may be allowed to return to the engaged position to cause each of the exercise weight support devices 100 to remain at that desired height. Then, either the bar of each of a pair of dumbbells or spaced apart portions of the bar of a single barbell may be inserted into the cradle 5 and the hooks 3 and 4 of each of the pair of the exercise weight support devices 100. As long as the trigger handle 19 is allowed to remain in the engaged position, the pair of dumbbells or the barbell remains suspended at the desired height, thereby allowing the lifter as much time as needed to position themselves as desired in preparation to begin their lifting exercise.
Stated differently, as a result of the force exerted by the one or more springs 14, 15 to urge the trigger handle 19 towards the engaged position, the trigger handle 19 functions to some extent as a “dead man's switch” that serves to cause a cessation in at least a downward movement of a dumbbell or part of a barbell when the trigger handle 19 is not being continuously held in the disengaged position by a lifter. Thus, a lifter who comes to realize that they are unexpectedly unable to continue performing reps of a lifting exercise for whatever reason (e.g., a muscle spasm or over exertion, or a more serious event such as a heart attack) need only let go of the trigger handle 19 to allow it to move under the force of the one or more springs 14, 15 back to the engaged position. With the trigger handle 19 allowed to return to the engaged position, the retracting reel mechanism 26 is triggered to again engage to the extent of at least preventing a dumbbell or at least a portion of a barbell from falling either onto the floor or onto the lifter.
In some embodiments, the retracting reel mechanism 26 may be a self-contained retracting ratchet mechanism of the type often used with tie-down straps for securing cargo for vehicle transport. An example of such a retracting ratchet mechanism is disclosed in U.S. Pat. No. 7,503,736 issued to Chen, the disclosure of which is incorporated herein by reference in its entirety. As depicted in
In embodiments in which the retracting reel mechanism 26 is a retracting ratchet mechanism, the ratchet wheels 11 and 12 may be oriented to cause their ratchet teeth to interact with the ratchet pawl 17 in a manner that rotation of the spool 13 to unwind and pay out more of the belt 9 while the ratchet pawl 17 is moved into engagement with the ratchet teeth of the ratchet wheels 11 and 12 is prevented. However, movement of the spool 13 in the opposite direction to retract and wind more of the belt 9 onto the spool 13 while the ratchet pawl 17 is moved into engagement with the ratchet teeth of the ratchet wheels 11 and 12 may be permitted. Thus, the retracting reel mechanism 26 may allow the belt 9 to be retracted to take up slack in the belt as the exercise weight support device 100 is lifted with the trigger handle allowed to be retracted by the one or more springs 14, 15 into the engaged position.
In alternate embodiments, the retracting reel mechanism 26 may include a simpler brake mechanism in combination with the spool 13 urged into retracting the belt 9 by the torsion spring 20 in lieu of a retracting ratchet mechanism. In such embodiments, allowing the trigger handle 19 to be retracted by the one or more springs 14, 15 into the engaged position may trigger the engagement of the brake mechanism to prevent either retraction of the belt 9 into or paying out of the belt from the retracting reel mechanism 26.
As has been described, the trigger handle 19 may be moved in a sliding motion between the engaged position in which the trigger handle is allowed to be retracted by the one or more springs 14, 15 away from the bar of a dumbbell or part of the bar of a barbell, and the disengaged position in which the trigger handle is pulled against the one or more springs 14, 15 into relatively close proximity to such a bar.
Also, as can be appreciated from a comparison between
Further, as can be appreciated from the perspective of both
With a palm and fingers of a hand of a lifter wrapped around at least the combination of the cradle 5 and the bar of a barbell 31 or of a dumbbell 29 or 30, a combination of gravity and the grip of the lifter's own hand may cooperate to maintain the bar within the interior areas defined by the hooks 3 and 4, and as seated within the trough defined by the cradle 5. Also, where the trigger handle 19 is moved into contact with the bar, the bar may be sandwiched between the trigger handle 19 and the cradle 5, thereby aiding in maintaining the bar within the interior areas defined by the hooks 3 and 4, and as seated within the trough defined by the cradle 5.
However,
The control routine 140 may include a sequence of instructions to implement logic to perform one or more functions. The processor circuit 155 is coupled to the storage 160 and may access the control routine 140 within the storage 160 to execute the control routine 140, thereby causing the processor circuit 155 to perform one or more of those various functions. The processor circuit 155 may be any of a variety of commercially available processors, employing any of a variety of processing technologies and implemented with one or more cores physically and electrically combined in any of a number of ways. The storage 160 may be made up of one or more distinct storage devices that each may be based on any of a wide variety of storage technologies of volatile and/or non-volatile nature.
More specifically, in executing the control routine 140, the processor circuit 155 may be caused to operate the controls 120 and/or the display 180 (if either or both are present) to provide a user interface to a lifter engaged in weightlifting. The controls 120 may be made up of any of a variety of switches, buttons, keypads, touch-sensitive surfaces and/or other components that enable the lifter to provide input. The display 180 may made up of one or more distinct components that are able to visually present information, ranging from one or more light-emitting diodes (LEDs) to a dot-matrix liquid-crystal display (LCD). Alternatively or additionally, in executing the control routine 140, the processor circuit 155 may be caused to operate the network interface 190 to interact with a smartphone, tablet computer or other device that may be operated by the lifter as an alternate approach to providing the lifter a user interface.
Among the purposes for which such a user interface may be provided, either directly through the controls 120 and/or the display 180, or indirectly through the network interface 190 interacting with another device, may be to allow the lifter to turn the controller 150 on or off, or to provide the controller 150 with any of a variety of commands or other information pertinent to performing those commands. By way of example, as part of preparing to perform a lifting exercise, the lifter may desire to have the exercise weight support device 100 either retract or pay out some of the belt 9 to adjust the height of the at which the exercise weight support device 100 may currently be supporting a barbell, a dumbbell or another form of free weight. It may be that the lifter operates the controls 120 to command the processor circuit 155 to operate the motor 170 to drive the spool 13 through the transmission 175 to retract or pay out the belt 9 to thereby raise or lower the exercise weight support device 100. In some embodiments, the command may be a simple raise or lower command that the lifter may operate the controls 120 to continue to provide until the desired height is achieved. In some embodiments, the command may specify a particular measured height from a floor. In some embodiments, the command may include the identity of the lifter and an indication of the particular lifting exercise that is about to be performed.
Where the command specifies a particular height from the floor, the processor circuit 155 may operate the height sensor 140 to determine the current height of the exercise weight support device 100 from the floor, and may then operate the motor 170 to cause retraction or paying out of the belt 9 to change the height of the exercise weight support device 100 until the specified height is reached. The height sensor 140 may be based on any of a variety of technologies for measuring the distance to a floor, including and not limited to emitting ultrasound pulses and determining how long an reflection of those pulses take to return, etc. Where the command specifies the identity of the lifter and includes an indication of the lifting exercise to be performed, the processor circuit 155 may access indications of the preferred starting heights of the lifter for various exercises to retrieve an indication of what height to either raise or lower the exercise weight support device 100 to by use of the motor 170.
Given the possibility of data errors, processing errors, loss of power from the power source 105 and/or other forms of malfunction that may befall automated systems such as the controller 150, the transmission 175 may be configured to ensure that operation of the trigger handle 19, as has been described above, is never compromised by an action taken by the processor circuit 155, and/or is always able to override an action taken by the processor circuit 155. Correspondingly, the transmission 175 may also be configured to ensure that the operation of the trigger handle 19, as has been described above, is never dependent upon the power source 105 being able to provide electric power to the controller or upon the controller 150 functioning correctly. Indeed, it may be deemed desirable for the embodiment of the exercise weight support device 100 depicted in
Although the invention has been described in a preferred form with a certain degree of particularity, it is understood that the present disclosure of the preferred form has been made only by way of example, and that numerous changes in the details of construction and the manner of manufacture may be resorted to without departing from the spirit and scope of the invention. It is intended to protect whatever features of patentable novelty exist in the invention disclosed.
This Utility application claims the benefit of the filing date of Provisional Application Ser. No. 62/133,418 (Atty's Docket No. 7-159) filed Mar. 15, 2015 by John Gordon Kay et al, the disclosure of which is incorporated herein by reference.
| Number | Date | Country | |
|---|---|---|---|
| 62133418 | Mar 2015 | US |
