US20050227836A1

US20050227836A1 - Push-up trainer

Info

Publication number: US20050227836A1
Application number: US10/851,057
Authority: US
Inventors: Wei-Tzu Wen
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-04-05
Filing date: 2004-05-24
Publication date: 2005-10-13
Also published as: TWM256201U

Abstract

A push-up trainer is comprised of a base having an underprop, a supporter movably mounted to the underprop of the base, two pressing bars each having an end pivotably mounted to the supporter, and two upholding members respectively detachably mounted to the pressing bars and each having a slidable member contacting against the base.

Description

BACKGROUND OF THE INVENTION

1. Field of the Invention
The present invention relates generally to exercise apparatuses, and more particularly to a push-up trainer.
2. Description of the Related Art
A conventional push-up trainer 80, as shown in FIG. 5, is comprised of an elongated base 81, a supporter 82, two pressing bars 83, and a guiding member 84. The elongated base 81 includes two upholding members 85 extending upwards. The supporter 82 includes a cushion 86 and two bearing bars 87 mounted to a bottom side of the cushion 86. Each of the two pressing bars 83 is pivotably connected to an apex of the upholding member 85, including an end pivotably mounted to a distal end of each bearing bar 87 and the other end provided with a handlebar 88. The guiding member 84 includes a first section 91 and a second section 92, which both are pivotably connected with each other to be collapsible relatively to each other. The guiding member 84 is mounted between the base 81 and the supporter 82, having the first section 91 connected to the cushion 86 and the second section 92 pivotably connected to the base 81, for keeping the up-down movement of the supporter 82.
If the user intends to operate the push-up trainer 80 for push-up exercise, the user will hold the handlebars 88 respectively by the user's hands, let the user's chest lie against the cushion 86, and push and pull the two pressing bars 83 repeatedly to generate leverage; meanwhile, the leverage drives the bearing bars 87 and the cushion 86 for up-down movement to further move the user's body up and down.
However, the conventional push-up trainer 80 is structurally complex, having numerous component parts, and the user is subject to injury incurred by the collapsible guiding member 84. In addition, different users have different arm length or different length of two outstretched arms, and the distance respectively between the two handlebars 88 and between each handlebar 88 and the cushion 86 is fixed, such that the distance fails to be adjustable in accordance with the different users to incur operational inconvenience.

SUMMARY OF THE INVENTION

The primary objective of the present invention is to provide a push-up trainer, which is structurally preferably simple and safe.
The secondary objective of the present invention is to provide a push-up trainer, which is adjustable in accordance with arm length of different users to reduce operational inconvenience.
The foregoing objectives of the present invention are attained by the push-up trainer, which is comprised of a base having an underprop, a supporter movably mounted to the underprop of the base, two pressing bars each having an end pivotably connected to the supporter, and two upholding members respectively detachably mounted to the pressing bars and each having a slidable member contacting against the base.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an elevation view of a preferred embodiment of the present invention;
FIG. 2 is a top view of the preferred embodiment of the present invention;
FIG. 3 is a sectional view taken along a line 3-3 indicated in FIG. 1;
FIG. 4 is an elevation view of the preferred embodiment of the present invention, showing that the user is operating the push-up trainer; and
FIG. 5 is a perspective view of a prior art.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

Referring to FIGS. 1-3, a push-up trainer 10 constructed according to a preferred embodiment of the present invention is comprised of a base 12, a supporter 14, two pressing bars 16, and two upholding members 18.
The base 12 is normally placed on the floor, including a circular chassis 20, an upright underprop 21 extending upwards from a top center of the chassis 20, two elongated bottom struts 22 formed at two opposite sides of an peripheral edge of the chassis 20, and two lateral struts 24 horizontally perpendicularly formed respectively at distal ends of the two bottom struts 22. Each of the bottom struts 22 is provided with a guide slot 26 recessed downwards from a top side thereof.
The supporter 14 includes a sleeve 28, a cushion 30 mounted on a top side of the sleeve 28, and two pivoting portions 32 respectively mounted at two opposite sides of an outer peripheral edge of a bottom side of the sleeve 28. The sleeve 28 is coaxially fitted to the underprop 21 to be slidable along the underprop 21.
Each of the pressing bars 16 includes an elongated tubular external bar 34 and an internal bar 36 fitted into the external bar 34. Each of the internal bars 36 has an end inserted into the external bar 34 for slidable movement along a long axle of the external bar 34, and the other end extending outwards and provided with a handlebar 38. Each internal bar 36 has three positioning holes 40 axially arranged thereon at an equal interval. The external bar 34 has a pin 42 detachably inserted into one of the positioning holes 40 for manipulating the distance between the handlebar 38 and the external bar 34. The external bar 34 has the other end pivotably mounted to the pivoting portion 32 of the supporter 14 by a pivoting pin 44, such that each pressing bar 16 can be pivotable on the pivoting pin 44. Further, the external bar 34 has a plurality of through holes 46 running therethrough and positioned relatively to the guide slot 26 of the base 12.
Each of the upholding members 18 is U-shaped, including a slidable member 48, which is embodied as a pulley, rotatably provided at_a bottom end thereof, and a locking member 50, which can embodied as a pin or a bolt, detachably inserted through a top end thereof into one of the through holes 46 of the pressing bar 16 to enable the upholding member 18 to be perpendicular to the pressing bar 16. Each of the slidable members 48 extends towards the base 12 to contact against the guide slot 26. When the locking member 50 is fixedly inserted into different positioning holes 46, an angle between each pressing bar 16 and the base 12 can be adjustable.
From the above recitation, when the user does the push-up exercise on the push-up trainer 10, the user has the hands respectively hold the handlebars 38 and the chest lie against the cushion 30. As shown in FIG. 4, the user's hands push the handlebars 38 to move the handlebars 38 downwards, such that the pressing bars 16 drive the sleeve 28 by leverage on a fulcrum, at which the slidable member 48 contacts against the base 12, to move upwards together with the cushion 30 along the underprop 21. In the meantime, the user's body lies against the cushion for auxiliary localization, thereby keeping the body in horizontally stationary position while the user repeats the push-up exercise. In addition, the sleeve 28 and the cushion 30 of the supporter 14 will not hurt the user while they are moved upwards and downwards. When another user of different arm length intends to operate the push-up trainer 10, the trainer 10 can be also applicable to this user by slidably moving each of the internal bars 36 to a position that fits the user's arm length relatively to the external bar 34 and fixing the internal tube 36 to the external bar 34 by the pin 42. If the user intends to strengthen the muscle of the arms with different strength, one or both of the upholding members 18 can be fixed respectively to different through holes 46 of one or both of the pressing bars 16 by the locking members 50, such that there are different angles formed between the base 12 and the pressing bar 16. Meanwhile, the user has to exert different strength to push the pressing bars 16 to drive the sleeve 28 to move upwards, thereby strengthening the muscle of the arms with different strength.
In conclusion, the present invention is structurally simple and safe, and adjustable according to different users of different arm length to reduce operational inconvenience.

Claims

1. A push-up trainer comprising:

a base having an underprop;

a supporter slidably mounted to said underprop of said base;

two pressing bars each having an end pivotably mounted to said supporter; and

two upholding members respectively detachably mounted to said pressing bars, each of said upholding members having a slidable member contacting against said bases; wherein said base further comprises two guide slots, and said slidable members respectively contact against said guide slots.

2. (canceled)

3. The push-up trainer as defined in claim 1, wherein said supporter further comprises a sleeve and a cushion mounted at a top side of said sleeve; said underprop of said base is upright mounted to said base, said sleeve being coaxially fitted to said underprop for slidable movement along said underprop.

4. The push-up trainer as defined in claim 1, wherein each of said pressing bars comprises an external bar and internal bar, said internal bar having a handlebar and slidably mounted to said external bar.

5. The push-up trainer as defined in claim 4, wherein said external and internal bars are elongated tubes, said internal bar having an end inserted into said external bar and the other end extending out of said external bar; said handlebar is mounted to the other end of said internal bar, said internal bar having a plurality of positioning holes, said external bar having a pin, said pin being detachably inserted into one of said positioning holes for manipulating the distance between said handlebar and said external bar.

6. The push-up trainer as defined in claim 1, wherein said pressing bar comprises a plurality of through holes; said upholding member is detachably mounted to said pressing bar by a locking member inserted into one of said through holes.