JP2724132B2 - Strength training equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a muscle training apparatus, and more particularly to an improvement of a muscle training apparatus known as a chest press training machine.

[0002]

2. Description of the Related Art A chest press training machine is a muscular strength training device for the pectoralis major, deltoid (anterior) and triceps. In a conventional chest press training machine, as shown in FIGS. 5 to 7, a weight suspension frame 2 is suspended from one end of a frame 1 placed on a floor or the like. The base 3 is disposed to be inclined forward, and the base 3
The seat 4 is disposed on the other end of the frame 1 and a step 5
Is provided at a predetermined height, a shaft 6 supported by a suitable bearing is provided on the frame 1 near the rear lower portion of the seat 4, and levers 7 are erected at both ends of the shaft 6 to form a substantially U-shape. To be rotatable in the front-rear direction. Lever 7
A grip 8 projects substantially orthogonally from the upper end of the grip.

[0003] The seat 4 is provided with frames 1a and 1b of a predetermined height supported on the frame 2 while being inclined rearward on the base 3.
A back pad 9 is fixed near the upper portion of the frame 1a, and a square pipe 10 having a predetermined height is fixed in parallel with the frame 1a. Although not shown, the square pipe 10 is provided with a lock mechanism 13 having a pin that advances and retreats into a plurality of holes formed in the square tube 12 in a stepwise manner. Thus, the height of the seat pad 11 can be changed and adjusted. In addition, a footrest 14 is provided on the frame 1 at the lower front of the seat 4.

A person who exercises strength with this chest press training machine sits on the seat 4 and places both feet on the step 5, and presses the back against the backrest pad 9,
When the user grips the grips 8, 8 of the levers 7, 7 with both hands and turns the levers 7, 7 to push forward, the levers 7, 7 are rotated.
Reference numeral 7 rotates around the shaft 6 forward as shown by a virtual line, whereby the wire rope 15 connected to the levers 7, 7 is suspended from the weight suspension frame 2 so as to be able to move up and down. By lifting the weight connecting tool, a load of the weight 16 having the set weight is generated. Therefore,
Both feet are removed from step 5 and placed on footrest 14, and levers 7, 7 are returned to their original positions while resisting the force of levers 7, 7 returning to their original positions with the weight of set weight 16. By doing so, it is possible to train the muscle at the predetermined site.

[0005]

However, according to the conventional chest press training machine, the two feet are placed on the step 5 in order to adjust the starting position of the grip 8, and the two feet put on the step 5 are used. Since it was not possible to set the weight of the weight 16 large by stepping on it, so-called eccentric training for advanced users could not be performed.

Further, since the seat 4 can only adjust the height of the seat pad 11 and the backrest pad 9 is fixed at a predetermined position, the lumbar spine may be adjusted depending on the degree of height adjustment of the seat pad 9. As a result, the user cannot take an appropriate sitting posture due to the lack of a backrest, and thus cannot exercise muscles effectively, but also has a disadvantage that the spine may be damaged.

Therefore, the present invention is to improve a chest press training machine in order to solve the above problems.

[0008]

According to the muscle training apparatus of the present invention, a substantially U-shaped lever having grips at both ends and pivotally supported by a frame is provided within a weight suspension frame near the frame. One end of a counter arm is integrally connected to the lower center of the lever in a strength training device that performs muscle training at a predetermined site by rotating the liftable weight in the front-rear direction against a selected load. At the same time, an assist bar for suspending both feet is fixed to the other end of the counter arm, and the counter arm is rotatably supported by the frame, while a seat pad is attached to the frame behind the counter arm. And a lumbar support pad fixed to a substantially L-shaped metal plate.

Therefore, the lever can swing forward and backward integrally with the assist bar, so that eccentric training for advanced users can be performed in addition to normal training for beginners. In addition, since the seat has a lumbar support pad that contacts the lumbar spine irrespective of the height, a proper training posture is ensured and effective strength training is enabled.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 to 4, a footrest 21 is fixedly disposed at one end (front side) of a frame 20 having a predetermined length to be placed on a floor or the like, and a bracket 22 is provided near the footrest 21.
A shaft 23 is rotatably supported via the shaft 23, and a counter arm 24 is supported on the shaft 23 in a seesaw manner so as to be swingable in the front-rear direction. At one end (front side) of the counter arm 24, an assist bar 25 replacing the step 5 of the conventional example is attached and fixed in a substantially T-shape, and at the other end, a substantially U-shaped corresponding to the pair of levers 7, 7 is provided. Lever 2
6 are connected and fixed appropriately. Grips 27 and 28 having different gripping directions are protruded from both ends of the lever 26.

At the rear of the lever 26, a square pipe 29 corresponding to the conventional square pipe 10 is erected rearward at a predetermined length on the frame 20 so as to incline backward. A square tube 30 corresponding to the tube 12 is fitted in the axial direction, and a seat 33 is formed by fixing a seat pad 32 fixed to a metal plate 31 at the upper end of the square tube 30. The metal plate 31 is substantially L-shaped, and a lumbar support pad 34 is fixedly attached to the upper end thereof. The seat pad 32 and the lumbar support pad 34
The position of the seat pad 32 and the lumbar support pad 34 does not change even if the height adjustment of 3 is performed.

Therefore, the lumbar support pad 34
Is formed so that the lumbar spine can be abutted, so that a tall person or a short person can hit an appropriate position. In addition, the front half of the seat pad 32 has a convex cross-sectional shape, and the lumbar support pad 34 has a semi-lunar cross-sectional shape, and is formed so as to fit a natural arch shape of the waist.
The upper body during exercise can be stabilized. That is, the optimum height from the seating surface to which the lumbar support pad 34 is applied is constant regardless of the height.

Above the lumbar support pad 34,
A backrest pad 9 of the conventional example is provided near the upper end of a frame 20a of a predetermined length which is erected rearward on the frame 20.
Is fixedly mounted. One end of a wire rope 36 corresponding to the wire rope 15 of the conventional example is connected near the upper end of the lever 26, and the other end of the wire rope 36 is connected to the side of the frames 20, 20a by a frame 20b. It is connected to a weight connecting tool 38 which can be moved up and down in the installed weight suspension frame 37.

The wire rope 36 is provided with appropriate pulleys 40 supported by the reinforcing frame 20c and the weight suspension frame 37,
The direction is changed via 41 and 42. The weight connecting tool 38 is a known one in which a desired number of weights 39 are appropriately selected and detached with pins. The weight 39 is a known one that can be moved up and down along guide rods 43, 43 suspended in the frame 37. The weight 39 is shielded by a resin cover 44 provided substantially surrounding the lower part of the frame 37. Reference numeral 45 denotes a plate for explaining how to use.

Next, the operation of the above embodiment will be described. If the height of the seat 33 is adjusted in the same manner as in the prior art for chest press training, the seat pad 32 and the lumbar support pad 34 are integrally formed by the metal plate 31. Since the lumbar support pads 34 are formed, their positions do not change, and the lumbar support pad 34 abuts against the lumbar vertebrae to ensure an appropriate sitting posture.

Therefore, when training, the user sits on the seat pad 32, places both feet on the assist bar 25, puts his / her back on the back pad 35, and holds the grips 27 provided on both ends of the lever 26 with both hands. , 27 or 28, 28, the lever 26 is rotated forward about the shaft 23, whereby the wire rope 36 connected to the lever 26 is connected to the weight suspension. A load is generated by lifting the weight 39 suspended from the frame 37 so as to be able to move up and down.

Next, both feet are removed from the assist bar 25 and placed on the footrest 21, and the lever 26 is moved to the original position while resisting the force of the lever 26 returning to the original position by the weight of the set weight 39. By returning to the above, it is possible to train the muscle at the predetermined site. And when doing eccentric training, the grip 27,
When pressing 27 or 28, 28, use two hands
At the same time as pushing 8, 28, kick the assist bar 25 with both feet and push until both arms are fully extended. When returning the arm, remove both feet from the assist bar 25 and hold the grip 28 to the start position with only the strength of the arm. , 28 are returned. In the case of this method, an amount larger than the amount of the weight 39 which is usually lifted only by the force of the arm can be handled, so that more effective muscle training can be performed.

[0018]

According to the present invention described above, a counter arm having a weight-applied lever fixed to one end is pivotally supported on the frame so as to be swingable in the front-rear direction, and is mounted on the other end of the counter arm. Since the assist bar is fixed, a muscular strength training device such as a chest press that can perform eccentric training can be obtained.

Further, the seat is substantially L-shaped by a square cylinder whose height can be adjusted.
The L-shaped metal plate is fixed, and the seat pad and the lumbar support pad are fixed to the metal plate. Will be able to do it.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a front view of FIG. 2;

FIG. 4 is a plan view of FIG. 2;

FIG. 5 is a side view of a conventional example.

FIG. 6 is a front view of FIG. 5;

FIG. 7 is a plan view of FIG. 5;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 20 ... Frame 21 ... Footrest 22 ... Bearing 23 ... Shaft 24 ... Counter arm 25 ... Assist bar 26 ... Lever 27, 28 ... Grip 29 ... Square pipe 30 ... Square cylinder 31 ... Metal plate 32 ... Seat pad 33 ... Seat 34 … Lumbar support pad 35… Back pad

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP2 39494 (JP, Y2) JP1 27803 (JP, Y2) JP 7-33813 (JP, Y2)

Claims (3)

(57) [Claims] 1. A substantially U-shaped lever having a grip at both ends and pivotally supported by a frame is moved back and forth against a selected load of a weight that can be raised and lowered in a weight suspension frame near the frame. In a strength training apparatus that performs muscle training at a predetermined site by rotating in the direction, one end of a counter arm is integrally connected to the lower center of the lever, and both feet are suspended from the other end of the counter arm. A strength training device, wherein an assist bar to be fixed is fixed, and the counter arm is pivotally supported on the frame so as to be rotatable. 2. A substantially U-shaped lever having grips at both ends and pivotally supported by a frame is moved in the front-rear direction against a load of a weight that can be raised and lowered from a weight suspension frame near the frame. In a strength training apparatus that performs muscle training at a predetermined site by swinging, a height adjustable by fixing a seat pad and a lumbar support pad to a substantially L-shaped metal plate on the frame behind the lever is adjustable. A strength training device characterized by having a seat. 3. A substantially U-shaped lever having grips at both ends and pivotally supported by a frame is moved in the front-rear direction against a load of a weight which can be raised and lowered from a weight suspension frame near the frame. By swinging, in a muscle training apparatus that performs muscle training at a predetermined site, one end of a counter arm is integrally connected to the lower center of the lever,
An assist bar for suspending both feet is fixed to the other end of the counter arm, and the counter arm is rotatably supported by the frame, while a seat pad and a lumbar bar are mounted on the frame behind the counter arm. A strength training apparatus, comprising a height-adjustable sheet having a support pad fixed to a substantially L-shaped metal plate.