JPH0123488Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to an abduction/abduction muscle training device,
In particular, it is designed to allow training in a seated position.

[Prior Art] Generally, in order to train the muscles in each part of the body and increase muscle strength, it is important to repeat exercises that use the target muscles as much as possible, but such exercises require special training. This is done through gymnastics or using machines or equipment. In recent years, with the rise of indoor sports, many training devices with mechanical structures have been provided, and devices that allow training to strengthen specific muscle strength without using too many other muscles. There is. In particular, there is also an abduction/abduction strength training machine that strengthens the muscle strength of the lumbar leg by repeatedly opening and closing the legs.

[Problems to be solved by the invention] However, in most of the training devices of this type that are currently widely used, the adductor and abductor muscle training machines are independent, and the entire device is It was large-scale and required a lot of installation space.

[Means for Solving the Problems] In view of the above-mentioned circumstances, the present invention aims to provide a training device that can be easily used by the general public, including women. In addition to having a backrest plate, a pair of levers are provided at the bottom of the seat plate that can be rotated in conjunction with each other to the left and right sides, and leg rest plates are attached to the upper ends of the levers. A contact plate that touches the inner thigh of the leg and rotates to touch the outside of the leg is installed,
A weight of a selected desired weight applies clockwise or counterclockwise rotational force to the cam through a cam that is removably loosely fitted to the shaft of the lever, thereby applying a load to the lever, causing internal and external rotation. This allows switching and training.

[Function] According to the present invention, while the body is fixed to the seat plate and the backrest plate and fixed to the leg rest plates of both legs, the body is moved to close both legs by applying the plate to the inside of the legs, Alternatively, the user can repeatedly apply the plate to the outside of the legs and open both legs.

[Example] The present invention will be explained below based on the illustrated example.

Fig. 1 is a side view, Fig. 2 is a front view, Fig. 3 is a plan view showing the base of the lever, Fig. 4 is a side view thereof,
5 and 6 are a partial plan view and a side view showing a configuration for transmitting the load of the weight to the lever, and FIG. 7 is a plan view of the cam.

In the figure, 1 is a base that is placed on the floor, 2 is a gate-shaped frame erected on one side of the base 1, and 3 is a seat plate 4, a backrest plate 5, and A construction stand having a pair of left and right arms 3a, 3a fixed to the lower back surface of the backrest plate 5, 6 is approximately L which is rotatably supported on the lower part of the seat plate 4 and protrudes forward. It is fixed to the shaft 7 with a pair of letter-shaped levers,
A cam 8 is loosely fitted onto this shaft 7, and a sprocket 9 is coaxially connected. An F-shaped mounting rod 10 is fixed to the upper end of the lever 6, and on the upper surface of this mounting rod 10 there is a mat 11 serving as a leg resting plate on which the interphalanges of the knee are placed, and a pair of left and right mats 1 that sandwich the legs.
2 and 12 are fixed respectively. A mat 13 is erected on the seat plate 4 side of the mat 11 as a rotatable contact plate that can come into contact with the inner thigh or outer side of the leg. This mat 13 is fixed to a base plate 14 having an L-shaped cross section, and this base plate 14 is rotatably fixed to a mounting rod 10 via a shaft 15.

On the other hand, as shown in FIG. 3, a chain belt 16 is endlessly looped around the sprockets 9, which are coaxially connected to the base of the lever 6, via a sprocket 17 that is pivotally supported on the base 1. 9 and 9 can be rotated in conjunction with each other. A cam 8 is coaxially attached to the shaft 7 of one sprocket 9, and the ends of cables 18 and 19, such as wires, are connected to the cam 8 via fasteners 20, respectively. As shown in FIG. 7, the cam 8 is made of a substantially elliptical disc with toothed portions 8a formed in a portion thereof, and is provided with a fastening hole 21 for a fastening device 20 for fastening the ends of the cables 18 and 19. It is being On the other hand, the wedge 22 is engaged with and disengaged from the tooth portion 8a, and the lever 6
The opening angle in the left and right direction can be adjusted. That is, the bracket 6 is attached to the base of the connection 6 at the bottom of the cam 8.
a, the wedge 22 is rotatably supported on the bracket 6a, and a handle 23 is fixed to the wedge 22, and when the handle 23 is pushed forward, the engagement between the wedge 22 and the teeth 8a is released. Conversely, when the handle 23 is pulled, the wedge 22 engages with the toothed portion 8a. The cables 18 and 19 fixed to the cam 8 are combined into a single cable 24 via a connector 19a, and as shown in FIG. 5, the cable 24 is wound around a sheave 26 via a sheave 25. It is rotated and its end is fixed to the sheave 26. On the other hand, the sheave 26 is fixed to a shaft 27 rotatably supported on the base 1, and a sheave 28 is further coaxially connected to this shaft 27. As shown in FIGS. 5 and 6, the sheave 28 has cables 29
One end is fixed and wound around the sheave 31 which is rotatably supported on the upper part of the portal frame 2 via a sprocket 30, and can be raised and lowered within the portal frame 2 via guide columns 32, 32. It is fixed to a weight connector 33 attached to the. The weight connector 33 has a known structure in which a required number of weights 34 can be attached and detached using pins 35. In addition, as shown by the imaginary line in FIG. 2, a cover body 36 may be provided on the gate-shaped frame 2 on the side of the backrest plate 5 to hide the weight 34 and the like.

Next, the operation of the above embodiment will be explained.
2, and place the mats 13, 13 on the outside of the thigh or on the inside of the thigh. Matsuto 1
3 is a mounting rod 1 centered on the shaft 15 via the board 14.
It can be located on either the left or right side of 0. Therefore, when the mats 13, 13 are applied to the outside of the thighs, the legs are moved to the left and right. At this time, the levers 6, 6 are in a substantially parallel position as shown by the solid lines in Fig. 3. Yes, the wedge 22 is attached to the toothed portion 8 near the right end of the cam 8.
A is engaged. Therefore, when the arms 3a, 3a are gripped with both hands to fix the body and both legs are opened to the left and right, the levers 6, 6 rotate to the left and right at the same angle via the sprockets 9, 9 and the chain 16, and are separated. The cam 8 also rotates at the same angle. When the cam 8 rotates, one chain 19 is pulled toward the cam 8, and the other chain 18 is pulled toward the sprocket 18a. The chains 18 and 19 connect the chain 24 to the sheave 26 shown in FIGS. 4 and 5.
Rotate. When the sheave 26 rotates, the sheave 28 coaxial with it rotates, and the cable 29 is connected to the sheave 2.
8, the weight connector 33 rises along the guide columns 32, 32. Since a required weight is loaded on the weight connector 33, the weight is varied by the cam 8 and is applied to the levers 6, 6. Therefore, abduction muscle training can be performed by repeating the split leg exercise.

On the other hand, if the mats 13, 13 are rotated inwardly around the shaft 15 and brought into contact with the inner thighs, the legs are moved to close. At this time, the levers 6, 6 are moved as shown in FIG. Open it to the left and right as shown by the medium imaginary line. Therefore, push the handle 23 forward as shown in FIG.
2 from the teeth 8a, open the levers 6, 6, and when the desired opening angle is obtained, pull the handle 23 to release the wedge 22.
is engaged with the tooth portion 8a near the left end of the cam 8a.
In this way, with the levers 6, 6 open, the load of the weight 34 is applied to the levers, so that adduction muscle strength training can be performed by repeating the leg-closing movement that brings both legs close to each other.

[Effects of the invention] As explained above, according to the invention, it is possible to train the muscles of adduction and abduction in a seated position, making preparation for the training position simple and easy. By engaging and disengaging the lever and holding the lever in the desired open/closed state, the desired weight of the weight loaded on the cam can be applied to the leg.It is easy to switch and is convenient for use when performing strength training for both internal and external rotation. It is very convenient. In addition, since it is structured so that training can be done in a seated position, the entire device can be made compact, making it ideal as an indoor athletic device.

[Brief explanation of drawings]

Fig. 1 is a side view, Fig. 2 is a front view, Fig. 3 is a plan view showing the base of the lever, Fig. 4 is a side view thereof,
5 and 6 are a partial plan view and a side view showing a configuration for loading the weight of the weight onto the cam, and FIG. 7 is a plan view of the cam. 4... Seat plate, 5... Backrest plate, 6... Lever, 7
...Shaft, 8...Cam, 9...Sprocket, 1
1, 12, 13...Matsuto, 14...Substrate, 15
...Shaft, 16...Chain belt, 18, 19...
...Cable, 22...Wedge, 23...Handle, 24...
...Cable, 26, 28, 30, 31... Sheave, 3
3... Weight connector, 34... Weight.

Claims (1)

[Scope of utility model registration request] It has a seat plate and a backrest plate that are supported and fixed at a predetermined height, and a pair of levers that can be rotated in conjunction with each other to the left and right sides at the bottom of the seat plate, and a leg rest plate is attached to the upper end of the lever. are attached to each of the levers, and a contact plate that contacts the inner thigh of the leg and can rotate to contact the outside of the leg is erected on the leg rest plate, and an eccentric cam is attached to the shaft of one of the levers. A lever is rotatably provided with a handle having a wedge that is fitted into the cam and can be engaged with and detached from the tooth, and the cam is rotated clockwise or counterclockwise by applying a variable weight to the cam. An abduction-abduction muscle training device characterized by applying a selected rotational force.