One-man adjustable bench press rack
United States Patent 3874658
A one-man operable bench press rack for weight lifting having a series of gears engaged in connection with a handle which in turn operates the gears adjusting the height of the arms on which the weights are placed. The handle is ratcheted so that the weight supporting arms may be adjusted upward and downward depending on what phase of the exercise the user is engaged in. In an alternate embodiment of the invention, the ratcheted handle may be replaced by a motor control in which the user merely pushes the up or down button depending on which phase of the exercise he is engaged in. The present invention allows the user to remove the weights after the exercising is complete with no physical strain and without the need of an attendant.
US Patent References:
Exercising bench comprising hinged and adjustable seating portions
Gaul - September 1967 - 3342485
MILTIPURPOSE EXERCISING DEVICE
Rennemann - December 1971 - 3625511
Exercising bench comprising hinged and adjustable seating portions
Gaul - September 1967 - 3342485
MILTIPURPOSE EXERCISING DEVICE
Rennemann - December 1971 - 3625511
Application Number:
05/444847
Publication Date:
04/01/1975
Filing Date:
02/22/1974
View Patent Images:
Export Citation:
Primary Class:
International Classes:
A63B21/078; A63B21/06; A63B21/00
Field of Search:
272/58,81,84
Other References:
Marcy Gym Equipment Co., Catalog No. 71, 1971, pg. 18. .
Marcy Gym Equipment Co., Catalog No. 71, 1971, pg. 19. .
Strength and Health Magazine, May 1974, pg. 11..
Primary Examiner:
Pinkham, Richard C.
Assistant Examiner:
Taylor, Joseph R.
Attorney, Agent or Firm:
Pugh & Laiche
Claims:
What is claimed as invention is
1. A one-man adjustable bench press device designed for use in connection with weight lifting exercises utilizing relatively heavy weights such as for example bar-bells comprising:
2. The device as defined in claim 1 wherein:
3. The device as defined in claim 1 wherein said adjustable means is comprised of a manually or an electrical motor operable gear drive train.
4. A one-man adjustable bench press device designed for use in connection with weight lifting exercises comprising:
5. The device as defined in claim 4 further comprising a ratcheted arm mounted on said bench board, said ratcheted arm being used to turn said gear train to raise and lower said arms relative to said bench board by pumping action.
6. The device as defined in claim 5 wherein:
7. The device as defined in claim 6 wherein:
8. The device as defined in claim 7 wherein:
9. The device as defined in claim 8 wherein:
10. A one-man adjustable bench press device designed for use in connection with weight lifting exercises comprising:
11. The device as defined in claim 10 wherein:
1. A one-man adjustable bench press device designed for use in connection with weight lifting exercises utilizing relatively heavy weights such as for example bar-bells comprising:
2. The device as defined in claim 1 wherein:
3. The device as defined in claim 1 wherein said adjustable means is comprised of a manually or an electrical motor operable gear drive train.
4. A one-man adjustable bench press device designed for use in connection with weight lifting exercises comprising:
5. The device as defined in claim 4 further comprising a ratcheted arm mounted on said bench board, said ratcheted arm being used to turn said gear train to raise and lower said arms relative to said bench board by pumping action.
6. The device as defined in claim 5 wherein:
7. The device as defined in claim 6 wherein:
8. The device as defined in claim 7 wherein:
9. The device as defined in claim 8 wherein:
10. A one-man adjustable bench press device designed for use in connection with weight lifting exercises comprising:
11. The device as defined in claim 10 wherein:
Description:
BACKGROUND OF THE PRESENT INVENTION
The present invention relates to an exercising device and more particularly to a one-man operable bench press device for exercising utilizing mechanical means to adjust the weight holding arms up or down, the adjusting means being operable by the user.
In prior art bench press systems, the weights are placed about 15 inches above the exerciser's chest on two fixed vertical support arms attached to the sides of the bench. This allows the exerciser enough space to get under the weights and lay on the bench and lift the weights off the vertical arms, and then he does his exercise. After he has finished his exercise, he has to put the weights back on the two arms, so he can get out from under the weights and off the bench.
Typical examples of prior art bench exercising devices which can be used as a bench press device are shown in the patents to Gaul (U.S. Pat. No. 3,342,485, issued Sept. 19, 1967) and Rennemann (U.S. Pat. No. 3,625,511, issued Dec. 7, 1971).
As is the customary practice, the weights used in bench press exercises are relatively heavy weights, often being of the order of 100 to 300 pounds, usually in the form of a bar bell. The particular weights used depend on the characteristics of the user, in particular the user's age, weight, and physical condition, and the stage of the body building program the user is in. Thus in the beginning a relatively small person may begin his program with as little as a 50 pound weight, while a medium size person may begin with a 75 pound weight, then working up as their conditions and programs permit to weights in excess of a hundred pounds.
In the prior art, if an exerciser has exhausted his energy before he puts the weights back on the vertical arms, he would become trapped under the weights. The prior art system of bench press exercise is thus extremely dangerous for a person to do exercises alone. It therefore usually necessitates another person to assist the exerciser to put the weights back on the vertical arms.
The present invention allows a person to do exercises alone and with safety. It does this by giving the exerciser himself a means of easily controlling without great effort the height of the support arms on which the weights are placed. The present invention further provides the necessary power to lift the weights off an exhausted exerciser's chest and allows him to get off the bench and out from under the weights without additional, substantial physical strain and without the need for an assistant.
"Great effort" or "substantial physical strain" as used herein means an effort or strain level substantially less than the effort or strain required to directly move the relatively heavy weights themselves. The present invention does this by providing an adjustment means for raising and lowering the support arms which provides the user a substantial mechanical advantage in its operation in moving the support arms. In the preferred embodiments described in detail herein, this mechanical advantage is achieved by means of a gear drive train, although many other systems are readily available and known to those skilled in the mechanical arts.
It is therefore an object of the present invention to provide a simply operable, easy, and inexpensive to manufacture bench press system which allows the exerciser alone to mechanically raise and lower the weights.
It is another object of the present invention to provide a one-man operable bench press device which in the preferred embodiment uses a series of gears which is operated manually by a ratchet handle or electrically by means of a motor to raise and lower the weight support arms.
BRIEF DESCRIPTION OF THE DRAWINGS
The above-mentioned and other features and objects of this invention and the manner of obtaining them will become more apparent and the invention itself will be best understood by a reference to the following description of the preferred embodiments of the invention taken in conjunction with the accompanying drawings wherein:
FIG. 1 is side-elevation view of a first preferred embodiment of the present invention, with some of the elements partially cut-away;
FIG. 2 is an end view of the embodiment depicted in FIG. 1 taken from the foot of the device in the direction of lines 2--2 of FIG. 1;
FIG. 3 is a cross-sectional view taken along section lines 3--3 of FIG. 1;
FIG. 4 is a cross-sectional view taken along section lines 4--4 of FIG. 1; while
FIG. 5 is a top, cross-sectional view taken along section lines 5--5 of FIG. 1.
FIG. 6 is a side-elevation view of an alternate embodiment using a motor to lift the weight support arms up and down.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
A bench press device is used for exercising by the user lying down on the bench portion of the device which is disposed either horizontally or at an angle and lifting weights in the form of "dumbbells" in a vertical direction, to thereby "press" the weights. In describing below the preferred embodiments of the present invention, a first embodiments using a gear train mechanically hand-driven by a ratcheted handle (FIGS. 1-5) will be described and then a second similar embodiment (FIG. 6) will be described using an electric motor drive.
STRUCTURE
Referring to the drawings, there is shown a one-man bench press exercising device 10 comprised of a bench board 11 upon which the exerciser lays down in order to get into a position whereby he can lift the weights placed in and across U-shaped member 34 and 34'. Weight support arms 33, 33' are attached below the U-shaped members 34, 34' and are telescopically inserted into tubular sleeve members 35, 35'. Wing nut/pin assemblies 60, 60' are used to fasten weight support arm 33, 33' into any given vertical position with respect to the sleeve members 35, 35' as required, depending upon the arm length of the exerciser. The pins of wing nut/pin assemblies 60, 60' mate with a series of holes (not seen in the illustrations) placed along the length of the arms 33, 33'.
Legs 13, 13', 14 and 14' support the bench press apparatus. (Leg 14' is not shown but would be the counterpart to leg 14.) Two, parallel angle iron side members 12 serve as a basic frame and as a molding, thereby hiding a portion of the inner workings of the gear train as well as serving as a safety shield to prevent the exerciser from getting caught in the gear train.
Lever handle 15 is attached to lateral axial rod or shaft 39. Longitudinally disposed bevel gear 16 is fixedly attached to axial rod 39 so as to be rotated when axial rod 39 turns by use of lever handle 15. Lever handle 15 is ratcheted by means of ratchet key 17 which allows rotation of the axial rod in only one direction, depending on the position of racket key 17, in a well known way.
Referring to FIGS. 4 and 5 of the drawings, there is shown in more particularity the structure by which axial rod 39 is supported by bracket 21. A set of sleeve collars 43, which include sets of ball bearings journaled within them, rotatably support axial rod 39.
Lateral bevel gear 18 is meshed together with bevel gear 16, and is mounted on longitudinal axial rod or shaft 20. Axial rod 20 has mounted on its other end lateral bevel gear 28, while collars 26 and 27 serve as support sleeves for axial rod 20. Collars 26 and 27 have mounted within them a set of ball bearings for ease in turning of the axial rod 20.
Longitudinally disposed C-shaped support means 19 supports collars 26 and 27, while longitudinal strip 108 supports C-shaped means 19 and is fastened thereto by nuts and bolts 23 and 24. As best seen in FIGS. 1, 2, 3 and 4, longitudinal strip 25 is fixedly suspended between two, opposed, lateral U-brackets 21 and 108 which are in turn fixedly attached to the bench board 11 and angle iron frame members 12.
The manner in which bracket 108 is attached to the bench board 11 is best seen in FIG. 3. The bracket 108 is fastened by nuts and bolts 41 and 42 to side angle iron strips 12 and the bench board 11.
The manner in which U-bracket 21 is attached to the bench board 11 is best seen in FIG. 4. Angle iron members 12 separates bracket 21 from bench board 11 and is connected thereto by a set of nuts and bolts 41 and 42.
A vertical sleeve 36 for journaling the vertical shaft 101 is attached to strip 25 by means of a nut and bolt arrangement 30 (note FIG. 3). Bevel gear 29 is attached to the common shaft 101 with spur gear 31, with the common shaft 101 riding in sleeve 36. The other end of the vertical, common shaft 101 is journaled into thrust bearing 106 mounted on lateral strip 102 which is attached to the bench board 11. Spur gear 31 in turn is meshed in with the smaller, planetary gears 32 and 32' (note FIG. 5), the latter of these gears being attached to a screw jack arrangement formed of central sleeves upon which the planetary gears are fixedly mounted and the vertical, threaded posts 9 and 9' to which the central sleeves are fixedly mounted.
The vertical, threaded posts 9, 9' are rotatably mounted between lateral brace arm 103 and lateral strip 107, which is attached to bench board 11, by means of thrust bearings 104, 104', and 105, 105', respectively. V-shaped braces 65, 65' in conjunction with lateral stabilizing arm 103 balance the bench. Thrust bearings 104, 104' 105, 105' permit screw jack arrangement 9, 9' to turn relative to the bench board.
Riding on the threaded posts 9, 9' is lateral weight support arm 61 which mates with the male posts 9, 9' by means of threaded female orifices or sockets. Because the lateral arm 61 cannot rotate with respect to the posts 9, 9', when the posts 9, 9' rotate, the arm 61 moves up or down, depending on the direction of rotation of the posts 9, 9'. Hence, ultimately, the weight support brackets 34, 34' are moved up or down by the back-and-forth movement of handle 15, depending on the direction of rotation of the elements of the system, which in turn depends on the position of racket key 17.
OPERATION
In preparation for use, the weight support arms 33, 33' are appropriately positioned with respect to the tubular sleeve members 34, 34' by means of wing nut/pin assemblies 60, 60', taking into account the arm length of the exerciser. The "dumbbell" weights are positioned across the U-shaped brackets 34, 34' and the rachet key 17 positioned in the "up" position. The weights are then raised to a suitable height by means of a back-and-forth pumping of the racheted handle 15.
The user then positions himself on the bench board 11 under the weights and moves them off the supports to begin exercising by "pressing" the weights. The user may, if he so desires, lower the support arms 33/35 and 33'/35' down and out of the way by means of repositioning the rachet key 17 and pumping the handle 15.
Upon completion of the exercises, the user merely appropriately positions the support arm 33/35 and 33'/35' to support the weights and raises the supported weights off and away from him to allow him freedom of movement.
When ratcheted handle 15 is moved back and forth, the series of right angle bevel gears 16, 18, 28 and 29, discussed in more detail hereinabove, turns intermediate spur gear 31 which in turn drives planetary gears 32 and 32'. It is this transalated motion caused by the initial movement of the ratcheted handle 15 which in turn moves bevel gear 16 and at the end of the gear train transalates this motion to a movement of planetary gears 32 and 32'. The movement of planetary gears 32 and 32' causes screw jack members 9 and 9' to turn in the threaded sockets of lateral weight support arm 61, moving it up and down, depending on the position of ratchet key 17.
ALTERNATE/MOTORIZED EMBODIMENT
FIG. 6 shows a second, alternate embodiment of the present invention utilizing a motor arrangement to raise and lower the weight support arms 35 and 35'. Basically this second, alternate embodiment is the same as the previously discussed first embodiment of FIGS. 1-5 above with the difference being that ratcheted handle 15 and its associated drive elements have been replaced by a bevel gear arrangement 56 connected to an electric motor 51 which is coupled thereto by coupling means 54. If desired, the right angle bevel gears 16 and 18 could be eliminated and the motor directly coupled to shaft 20.
The motor 51 is positioned on strip 53 which in turn is supported by U-brackets 52 and 55. A panel with "up" and "down" buttons is positioned along the side of the bench 11 so that the exerciser can merely push the button one way or the other to raise or lower the weights accordingly. Electric cord 58 may be plugged into any receptable for supplying power to the electric motor 51.
As is true with most mechanical systems, the possible modifications to the preferred embodiments described above are nearly limitless. For example, many different gear train systems are possible, although the one described is considered preferrable. Indeed, rather than a mechanical gear train drive system, it is possible to use other mechanical drive systems such as for example a rack-and-pinion system, or rather than a mechanical drive a hydraulic one could be used. Moreover, as an initiating element, rather than a racheted pumping handle, a rotary wheel could be used, or a foot treadle rather than an arm handle could be used. Additionally, the support system could include a safety stop system to prevent excessive lowering of the weights. Likewise the vertical and lateral support elements could be varied and mounted differently in many different ways. Finally, the figures are intended to be only generally illustrative of the principles of the present invention, and, for example, the gearing ratios should be those appropriate for a particular application, taking into consideration the amount of effort desirable or electric motor torque available. The above are merely exemplary of the possible changes.
Because many varying and different embodiments may be made within the scope of the inventive concept herein taught, and because many modifications may be made in the embodiments herein detailed in accordance with the descriptive requirements of the law, it is to be understood that the details herein are to be interpreted as illustrative and not in a limiting sense.
The present invention relates to an exercising device and more particularly to a one-man operable bench press device for exercising utilizing mechanical means to adjust the weight holding arms up or down, the adjusting means being operable by the user.
In prior art bench press systems, the weights are placed about 15 inches above the exerciser's chest on two fixed vertical support arms attached to the sides of the bench. This allows the exerciser enough space to get under the weights and lay on the bench and lift the weights off the vertical arms, and then he does his exercise. After he has finished his exercise, he has to put the weights back on the two arms, so he can get out from under the weights and off the bench.
Typical examples of prior art bench exercising devices which can be used as a bench press device are shown in the patents to Gaul (U.S. Pat. No. 3,342,485, issued Sept. 19, 1967) and Rennemann (U.S. Pat. No. 3,625,511, issued Dec. 7, 1971).
As is the customary practice, the weights used in bench press exercises are relatively heavy weights, often being of the order of 100 to 300 pounds, usually in the form of a bar bell. The particular weights used depend on the characteristics of the user, in particular the user's age, weight, and physical condition, and the stage of the body building program the user is in. Thus in the beginning a relatively small person may begin his program with as little as a 50 pound weight, while a medium size person may begin with a 75 pound weight, then working up as their conditions and programs permit to weights in excess of a hundred pounds.
In the prior art, if an exerciser has exhausted his energy before he puts the weights back on the vertical arms, he would become trapped under the weights. The prior art system of bench press exercise is thus extremely dangerous for a person to do exercises alone. It therefore usually necessitates another person to assist the exerciser to put the weights back on the vertical arms.
The present invention allows a person to do exercises alone and with safety. It does this by giving the exerciser himself a means of easily controlling without great effort the height of the support arms on which the weights are placed. The present invention further provides the necessary power to lift the weights off an exhausted exerciser's chest and allows him to get off the bench and out from under the weights without additional, substantial physical strain and without the need for an assistant.
"Great effort" or "substantial physical strain" as used herein means an effort or strain level substantially less than the effort or strain required to directly move the relatively heavy weights themselves. The present invention does this by providing an adjustment means for raising and lowering the support arms which provides the user a substantial mechanical advantage in its operation in moving the support arms. In the preferred embodiments described in detail herein, this mechanical advantage is achieved by means of a gear drive train, although many other systems are readily available and known to those skilled in the mechanical arts.
It is therefore an object of the present invention to provide a simply operable, easy, and inexpensive to manufacture bench press system which allows the exerciser alone to mechanically raise and lower the weights.
It is another object of the present invention to provide a one-man operable bench press device which in the preferred embodiment uses a series of gears which is operated manually by a ratchet handle or electrically by means of a motor to raise and lower the weight support arms.
BRIEF DESCRIPTION OF THE DRAWINGS
The above-mentioned and other features and objects of this invention and the manner of obtaining them will become more apparent and the invention itself will be best understood by a reference to the following description of the preferred embodiments of the invention taken in conjunction with the accompanying drawings wherein:
FIG. 1 is side-elevation view of a first preferred embodiment of the present invention, with some of the elements partially cut-away;
FIG. 2 is an end view of the embodiment depicted in FIG. 1 taken from the foot of the device in the direction of lines 2--2 of FIG. 1;
FIG. 3 is a cross-sectional view taken along section lines 3--3 of FIG. 1;
FIG. 4 is a cross-sectional view taken along section lines 4--4 of FIG. 1; while
FIG. 5 is a top, cross-sectional view taken along section lines 5--5 of FIG. 1.
FIG. 6 is a side-elevation view of an alternate embodiment using a motor to lift the weight support arms up and down.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
A bench press device is used for exercising by the user lying down on the bench portion of the device which is disposed either horizontally or at an angle and lifting weights in the form of "dumbbells" in a vertical direction, to thereby "press" the weights. In describing below the preferred embodiments of the present invention, a first embodiments using a gear train mechanically hand-driven by a ratcheted handle (FIGS. 1-5) will be described and then a second similar embodiment (FIG. 6) will be described using an electric motor drive.
STRUCTURE
Referring to the drawings, there is shown a one-man bench press exercising device 10 comprised of a bench board 11 upon which the exerciser lays down in order to get into a position whereby he can lift the weights placed in and across U-shaped member 34 and 34'. Weight support arms 33, 33' are attached below the U-shaped members 34, 34' and are telescopically inserted into tubular sleeve members 35, 35'. Wing nut/pin assemblies 60, 60' are used to fasten weight support arm 33, 33' into any given vertical position with respect to the sleeve members 35, 35' as required, depending upon the arm length of the exerciser. The pins of wing nut/pin assemblies 60, 60' mate with a series of holes (not seen in the illustrations) placed along the length of the arms 33, 33'.
Legs 13, 13', 14 and 14' support the bench press apparatus. (Leg 14' is not shown but would be the counterpart to leg 14.) Two, parallel angle iron side members 12 serve as a basic frame and as a molding, thereby hiding a portion of the inner workings of the gear train as well as serving as a safety shield to prevent the exerciser from getting caught in the gear train.
Lever handle 15 is attached to lateral axial rod or shaft 39. Longitudinally disposed bevel gear 16 is fixedly attached to axial rod 39 so as to be rotated when axial rod 39 turns by use of lever handle 15. Lever handle 15 is ratcheted by means of ratchet key 17 which allows rotation of the axial rod in only one direction, depending on the position of racket key 17, in a well known way.
Referring to FIGS. 4 and 5 of the drawings, there is shown in more particularity the structure by which axial rod 39 is supported by bracket 21. A set of sleeve collars 43, which include sets of ball bearings journaled within them, rotatably support axial rod 39.
Lateral bevel gear 18 is meshed together with bevel gear 16, and is mounted on longitudinal axial rod or shaft 20. Axial rod 20 has mounted on its other end lateral bevel gear 28, while collars 26 and 27 serve as support sleeves for axial rod 20. Collars 26 and 27 have mounted within them a set of ball bearings for ease in turning of the axial rod 20.
Longitudinally disposed C-shaped support means 19 supports collars 26 and 27, while longitudinal strip 108 supports C-shaped means 19 and is fastened thereto by nuts and bolts 23 and 24. As best seen in FIGS. 1, 2, 3 and 4, longitudinal strip 25 is fixedly suspended between two, opposed, lateral U-brackets 21 and 108 which are in turn fixedly attached to the bench board 11 and angle iron frame members 12.
The manner in which bracket 108 is attached to the bench board 11 is best seen in FIG. 3. The bracket 108 is fastened by nuts and bolts 41 and 42 to side angle iron strips 12 and the bench board 11.
The manner in which U-bracket 21 is attached to the bench board 11 is best seen in FIG. 4. Angle iron members 12 separates bracket 21 from bench board 11 and is connected thereto by a set of nuts and bolts 41 and 42.
A vertical sleeve 36 for journaling the vertical shaft 101 is attached to strip 25 by means of a nut and bolt arrangement 30 (note FIG. 3). Bevel gear 29 is attached to the common shaft 101 with spur gear 31, with the common shaft 101 riding in sleeve 36. The other end of the vertical, common shaft 101 is journaled into thrust bearing 106 mounted on lateral strip 102 which is attached to the bench board 11. Spur gear 31 in turn is meshed in with the smaller, planetary gears 32 and 32' (note FIG. 5), the latter of these gears being attached to a screw jack arrangement formed of central sleeves upon which the planetary gears are fixedly mounted and the vertical, threaded posts 9 and 9' to which the central sleeves are fixedly mounted.
The vertical, threaded posts 9, 9' are rotatably mounted between lateral brace arm 103 and lateral strip 107, which is attached to bench board 11, by means of thrust bearings 104, 104', and 105, 105', respectively. V-shaped braces 65, 65' in conjunction with lateral stabilizing arm 103 balance the bench. Thrust bearings 104, 104' 105, 105' permit screw jack arrangement 9, 9' to turn relative to the bench board.
Riding on the threaded posts 9, 9' is lateral weight support arm 61 which mates with the male posts 9, 9' by means of threaded female orifices or sockets. Because the lateral arm 61 cannot rotate with respect to the posts 9, 9', when the posts 9, 9' rotate, the arm 61 moves up or down, depending on the direction of rotation of the posts 9, 9'. Hence, ultimately, the weight support brackets 34, 34' are moved up or down by the back-and-forth movement of handle 15, depending on the direction of rotation of the elements of the system, which in turn depends on the position of racket key 17.
OPERATION
In preparation for use, the weight support arms 33, 33' are appropriately positioned with respect to the tubular sleeve members 34, 34' by means of wing nut/pin assemblies 60, 60', taking into account the arm length of the exerciser. The "dumbbell" weights are positioned across the U-shaped brackets 34, 34' and the rachet key 17 positioned in the "up" position. The weights are then raised to a suitable height by means of a back-and-forth pumping of the racheted handle 15.
The user then positions himself on the bench board 11 under the weights and moves them off the supports to begin exercising by "pressing" the weights. The user may, if he so desires, lower the support arms 33/35 and 33'/35' down and out of the way by means of repositioning the rachet key 17 and pumping the handle 15.
Upon completion of the exercises, the user merely appropriately positions the support arm 33/35 and 33'/35' to support the weights and raises the supported weights off and away from him to allow him freedom of movement.
When ratcheted handle 15 is moved back and forth, the series of right angle bevel gears 16, 18, 28 and 29, discussed in more detail hereinabove, turns intermediate spur gear 31 which in turn drives planetary gears 32 and 32'. It is this transalated motion caused by the initial movement of the ratcheted handle 15 which in turn moves bevel gear 16 and at the end of the gear train transalates this motion to a movement of planetary gears 32 and 32'. The movement of planetary gears 32 and 32' causes screw jack members 9 and 9' to turn in the threaded sockets of lateral weight support arm 61, moving it up and down, depending on the position of ratchet key 17.
ALTERNATE/MOTORIZED EMBODIMENT
FIG. 6 shows a second, alternate embodiment of the present invention utilizing a motor arrangement to raise and lower the weight support arms 35 and 35'. Basically this second, alternate embodiment is the same as the previously discussed first embodiment of FIGS. 1-5 above with the difference being that ratcheted handle 15 and its associated drive elements have been replaced by a bevel gear arrangement 56 connected to an electric motor 51 which is coupled thereto by coupling means 54. If desired, the right angle bevel gears 16 and 18 could be eliminated and the motor directly coupled to shaft 20.
The motor 51 is positioned on strip 53 which in turn is supported by U-brackets 52 and 55. A panel with "up" and "down" buttons is positioned along the side of the bench 11 so that the exerciser can merely push the button one way or the other to raise or lower the weights accordingly. Electric cord 58 may be plugged into any receptable for supplying power to the electric motor 51.
As is true with most mechanical systems, the possible modifications to the preferred embodiments described above are nearly limitless. For example, many different gear train systems are possible, although the one described is considered preferrable. Indeed, rather than a mechanical gear train drive system, it is possible to use other mechanical drive systems such as for example a rack-and-pinion system, or rather than a mechanical drive a hydraulic one could be used. Moreover, as an initiating element, rather than a racheted pumping handle, a rotary wheel could be used, or a foot treadle rather than an arm handle could be used. Additionally, the support system could include a safety stop system to prevent excessive lowering of the weights. Likewise the vertical and lateral support elements could be varied and mounted differently in many different ways. Finally, the figures are intended to be only generally illustrative of the principles of the present invention, and, for example, the gearing ratios should be those appropriate for a particular application, taking into consideration the amount of effort desirable or electric motor torque available. The above are merely exemplary of the possible changes.
Because many varying and different embodiments may be made within the scope of the inventive concept herein taught, and because many modifications may be made in the embodiments herein detailed in accordance with the descriptive requirements of the law, it is to be understood that the details herein are to be interpreted as illustrative and not in a limiting sense.