Title:
CHINNING APPARATUS WITH UPWARDLY BRAISED FOOT PLATFORM
United States Patent 3592465
Abstract:
An exercising apparatus for performing chinning exercises including a horizontal bar and a foot platform that is supported by cables and yieldingly urged upwardly to assist the person performing the exercise. Means are supplied for guiding the foot platform for vertical movement.
US Patent References:
Exercising apparatus
Luppert - December 1934 - 1983911
Bar bell exercising device with slidable carriage
Leflar - February 1966 - 3235255
HORIZONTAL BAR AND SPRING-BIASSED EXERCISING APPARATUS
Trent - July 1969 - 3457786
Exercising apparatus
Luppert - December 1934 - 1983911
Bar bell exercising device with slidable carriage
Leflar - February 1966 - 3235255
HORIZONTAL BAR AND SPRING-BIASSED EXERCISING APPARATUS
Trent - July 1969 - 3457786
Application Number:
04/752525
Publication Date:
07/13/1971
Filing Date:
08/14/1968
View Patent Images:
Export Citation:
Primary Class:
Other Classes:
482/127
International Classes:
A63B1/00; A63B21/00; A63B21/02; A63B21/045; A63B1/00
Field of Search:
272/61,62,63,83A
Primary Examiner:
Pinkham, Richard C.
Assistant Examiner:
Siskind, Marvin
Claims:
I claim
1. In an exercising apparatus, the combination comprising
2. The combination set forth in claim 1 wherein said telescoping means for stabilizing said foot platform for vertical movement comprises telescoping members.
3. The combination set forth in claim 2 wherein said biasing means yieldingly urging said foot platform upwardly comprises cables connected at one end to said platform,
4. The combination set forth in claim 3 wherein said sheaves are mounted on a common shaft.
5. The combination set forth in claim 4 wherein said spring means comprises a helically wound spring having one end thereof fixed to said shaft and the other end thereof fixed to a support.
6. The combination set forth in claim 5 including means for varying the tension of said spring.
7. The combination set forth in claim 6 including indicia means for indicating the relative tension on said spring.
8. The combination set forth in claim 1 including means defining a vertical surface adjacent said platform,
9. The combination set forth in claim 1 wherein said means yieldingly urging said foot platform upwardly comprises cables connected at one end to said platform,
10. The combination set forth in claim 9 including a horizontal beam on the upper ends of said vertical members, and a horizontal shaft rotatably mounted thereon,
11. The combination set forth in claim 10 wherein said spring means comprises a helically wound spring having one end thereof fixed to said shaft and the other end thereof fixed to said horizontal beam.
12. The combination set forth in claim 11 including means for varying the tension of said spring.
13. The combination set forth in claim 12 including indicia means for indicating the relative tension on said spring.
14. In an exercising apparatus, the combination comprising
15. The combination set forth in claim 14 wherein said telescoping means for stabilizing said foot platform for vertical movement comprises a telescoping member fixed to said platform and a telescoping member fixed to said vertical members.
16. The combination set forth in claim 14 including means defining a vertical surface adjacent said platform,
17. In an exercising apparatus, the combination comprising
1. In an exercising apparatus, the combination comprising
2. The combination set forth in claim 1 wherein said telescoping means for stabilizing said foot platform for vertical movement comprises telescoping members.
3. The combination set forth in claim 2 wherein said biasing means yieldingly urging said foot platform upwardly comprises cables connected at one end to said platform,
4. The combination set forth in claim 3 wherein said sheaves are mounted on a common shaft.
5. The combination set forth in claim 4 wherein said spring means comprises a helically wound spring having one end thereof fixed to said shaft and the other end thereof fixed to a support.
6. The combination set forth in claim 5 including means for varying the tension of said spring.
7. The combination set forth in claim 6 including indicia means for indicating the relative tension on said spring.
8. The combination set forth in claim 1 including means defining a vertical surface adjacent said platform,
9. The combination set forth in claim 1 wherein said means yieldingly urging said foot platform upwardly comprises cables connected at one end to said platform,
10. The combination set forth in claim 9 including a horizontal beam on the upper ends of said vertical members, and a horizontal shaft rotatably mounted thereon,
11. The combination set forth in claim 10 wherein said spring means comprises a helically wound spring having one end thereof fixed to said shaft and the other end thereof fixed to said horizontal beam.
12. The combination set forth in claim 11 including means for varying the tension of said spring.
13. The combination set forth in claim 12 including indicia means for indicating the relative tension on said spring.
14. In an exercising apparatus, the combination comprising
15. The combination set forth in claim 14 wherein said telescoping means for stabilizing said foot platform for vertical movement comprises a telescoping member fixed to said platform and a telescoping member fixed to said vertical members.
16. The combination set forth in claim 14 including means defining a vertical surface adjacent said platform,
17. In an exercising apparatus, the combination comprising
Description:
This invention relates to exercising apparatus and particularly to exercising apparatus for use in performing chinning exercises.
Among the objects of the invention are to provide an exercising apparatus wherein the exercise of chinning is facilitated by providing a yielding force that assists the person performing the exercise in the upward movement; to provide such an apparatus wherein the yielding force can be varied; to provide an apparatus that can be adapted to conventional chinning bars; and to provide an apparatus which is relatively simple and low in cost.
In the drawings:
FIG. 1 is a fragmentary front elevational view of an exercising apparatus embodying the invention.
FIG. 2 is a side elevational view of the same.
FIG. 3 is a fragmentary front elevational view on an enlarged scale of the upper portion of the apparatus shown in FIG. 1.
FIG. 4 is a fragmentary sectional view on an enlarged scale taken along the line 4-4 in FIG. 3.
Referring to FIG. 1, the apparatus embodying the invention is adapted to be placed and utilized in association with a conventional horizontal chinning bar 10 that is supported by a frame which includes brackets 11 on vertical wood beams 12 that are mounted on the wall 13. This portion of the apparatus is conventional and can be found in gymnasiums and the like.
The frame includes a crossbeam 14 mounted on the upper ends of the vertical members 12 and a plate 15 having a slot 16 is telescoped downwardly over a bolt 17 that normally holds the vertical member on the wall. This serves as a base for supporting the apparatus which basically includes a foot platform 18 that is yieldingly urged upwardly so that when the person grasps the chinning bar 10, a yielding force is provided to assist in the movement. The yielding force may be varied as presently described.
Referring specifically to FIG. 3, brackets 20, 21 are provided over the plate 15 and are fixed to the beam 14 by bolts 22, 23. The brackets 20, 21 rotatably support a shaft 24. A sheave 25, 26 is fixed to each end of the shaft and cables 27, 28 are wound on the sheaves 25, 26 and extend downwardly and are fixed to upstanding brackets 29, 30 on the foot platform 18. The cables 27, 28 extend downwardly through openings in horizontal portions of the brackets 20, 21 in which antifriction fitments 31 are positioned.
A collar 32 is fixed by a setscrew 33 adjacent one end of the shaft 24 and one end of a coil spring 34 is threaded onto the collar. The other end of the spring 34 is threaded onto a bracket 35 that is, in turn, fixed by bolts 36 to a bracket 37 which has a gear 38 fixed thereto that engages a worm 39 rotatably mounted on a bracket 40. A tube 41 is provided within the spring to prevent it from becoming distorted. By this arrangement, rotation of the worm 39 will vary the tension on the spring 34. A wheel 42 frictionally engages the bracket 37 to provide indicia including a fixed pointer 43a and numbers 43b on the wheel to indicate the relative tension on the spring 34.
A stabilizing bar 44 is fixed to the platform and extends upwardly into a tube 45 that is fastened by brackets 46, 47 to the beam 14 and a crossbeam 48, respectively. An adjustable stop 49 is provided to serve as a limit for the upward movement of the platform 18. Additional stops 50 are provided on the cables for engagement with the brackets 20, 21. Rollers 51 are rotated about horizontal axes on the platform 18 and engage resilient rubber strips 52 affixed to the wall.
In use, the person steps on the platform 18 and his weight forces it down. He grasps the bar 10 and as he lifts himself upwardly, the platform 18 provides a yielding force assisting his upward movement. As a person continues exercising on successive days and builds up strength, he may lessen the tension on the spring thereby lessening the yielding force that is provided by the platform.
Among the objects of the invention are to provide an exercising apparatus wherein the exercise of chinning is facilitated by providing a yielding force that assists the person performing the exercise in the upward movement; to provide such an apparatus wherein the yielding force can be varied; to provide an apparatus that can be adapted to conventional chinning bars; and to provide an apparatus which is relatively simple and low in cost.
In the drawings:
FIG. 1 is a fragmentary front elevational view of an exercising apparatus embodying the invention.
FIG. 2 is a side elevational view of the same.
FIG. 3 is a fragmentary front elevational view on an enlarged scale of the upper portion of the apparatus shown in FIG. 1.
FIG. 4 is a fragmentary sectional view on an enlarged scale taken along the line 4-4 in FIG. 3.
Referring to FIG. 1, the apparatus embodying the invention is adapted to be placed and utilized in association with a conventional horizontal chinning bar 10 that is supported by a frame which includes brackets 11 on vertical wood beams 12 that are mounted on the wall 13. This portion of the apparatus is conventional and can be found in gymnasiums and the like.
The frame includes a crossbeam 14 mounted on the upper ends of the vertical members 12 and a plate 15 having a slot 16 is telescoped downwardly over a bolt 17 that normally holds the vertical member on the wall. This serves as a base for supporting the apparatus which basically includes a foot platform 18 that is yieldingly urged upwardly so that when the person grasps the chinning bar 10, a yielding force is provided to assist in the movement. The yielding force may be varied as presently described.
Referring specifically to FIG. 3, brackets 20, 21 are provided over the plate 15 and are fixed to the beam 14 by bolts 22, 23. The brackets 20, 21 rotatably support a shaft 24. A sheave 25, 26 is fixed to each end of the shaft and cables 27, 28 are wound on the sheaves 25, 26 and extend downwardly and are fixed to upstanding brackets 29, 30 on the foot platform 18. The cables 27, 28 extend downwardly through openings in horizontal portions of the brackets 20, 21 in which antifriction fitments 31 are positioned.
A collar 32 is fixed by a setscrew 33 adjacent one end of the shaft 24 and one end of a coil spring 34 is threaded onto the collar. The other end of the spring 34 is threaded onto a bracket 35 that is, in turn, fixed by bolts 36 to a bracket 37 which has a gear 38 fixed thereto that engages a worm 39 rotatably mounted on a bracket 40. A tube 41 is provided within the spring to prevent it from becoming distorted. By this arrangement, rotation of the worm 39 will vary the tension on the spring 34. A wheel 42 frictionally engages the bracket 37 to provide indicia including a fixed pointer 43a and numbers 43b on the wheel to indicate the relative tension on the spring 34.
A stabilizing bar 44 is fixed to the platform and extends upwardly into a tube 45 that is fastened by brackets 46, 47 to the beam 14 and a crossbeam 48, respectively. An adjustable stop 49 is provided to serve as a limit for the upward movement of the platform 18. Additional stops 50 are provided on the cables for engagement with the brackets 20, 21. Rollers 51 are rotated about horizontal axes on the platform 18 and engage resilient rubber strips 52 affixed to the wall.
In use, the person steps on the platform 18 and his weight forces it down. He grasps the bar 10 and as he lifts himself upwardly, the platform 18 provides a yielding force assisting his upward movement. As a person continues exercising on successive days and builds up strength, he may lessen the tension on the spring thereby lessening the yielding force that is provided by the platform.