JPS588263B2 - Training device with bending and stretching strength adjustment device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is characterized in that the backrest 3 which is pivotably supported on the rear legs 2 of the chair body 1 and the seat 5 which is pivotably pivoted on the front legs 4 of the chair body 1 are bent. An adjusting device 6 that is freely hinged and can freely adjust the bending strength of the connecting portion is attached to a pivot portion 7 between the rear legs 2 and the backrest portion 3, a pivot portion 8 between the front legs 4 and the seat portion 5, and a pivot portion 8 between the front legs 4 and the seat portion 5. This relates to a training device with a bending and stretching strength adjusting device, which is attached to at least one of the hinge portions 9 of the backrest portion 3, and its purpose is to:
To provide a training device with a bending/stretching strength adjusting device capable of performing bending/stretching exercises suited to each person's physical strength.

In the conventional folding type full body bending and stretching training device,
The pivot of the training device was designed to be smooth so that it could be recoiled during bending and stretching exercises, reducing the stress on exercise.

Therefore, it is convenient to use such a training device for flexibility exercises, etc., but it is not sufficient if you are actively trying to train your muscles because it gives momentum to the bending and stretching of the whole body. there were.

The present invention solves these conventional drawbacks and will be explained in detail below with reference to the illustrated embodiments.

In the illustrated example, one end of the backrest part 3 and one end of the seat part 5 are hinged so that they can be bent freely, and a sheet 10 like canvas is stretched between the backrest part 3 and the seat part 5. , the lower part of the backrest part 3 is swingably supported by the rear legs 2 of the chair body 1, and the other end of the seat part 5 is swingably supported by the front legs 4 of the chair body 1, and the front legs 4 is the grounding part 11 of the chair body 1
It is pivotally supported to allow free rocking, forming a reclining chair-shaped training device body.

An adjusting device 6 is attached to the hinge part 9 between the seat part 5 and the backrest part 3 of the main body of the training device, and the adjustment device 6 can freely adjust the bending strength of the seat part 5 and the backrest part 3. The force required to bend the seat part 5 and the backrest part 3 around the hinge part 9, that is, the bending and stretching strength, can be applied to beauty training in several stages depending on the exercise level of the person training with the device. This is to adjust the degree of

The adjustment device 6 is one that provides frictional resistance between surfaces that rotate and slide against each other to make this frictional resistance variable, and one that inserts a spring material between members that move mutually to adjust the spring force. Adjustable devices are used.

This adjusting device 9 is provided with a handle 12, and by adjusting the handle 12 to a scale 13, etc., select fixed (unbendable), strong, loaded (bending with moderate resistance), weak, It can be adjusted to various stages such as open (a state in which it bends freely and without resistance).

For example, as shown in Fig. 2, lower the seat 5, lean your back against the backrest 3, move from the shape of the letter ■ to the shape of the figure 3, bent backwards as shown in Fig. 3, and repeat this movement. Repeat beauty training etc.

In addition, if a leg support part is provided that protrudes forward from the seat part 5, it can also be used as a bed-type training device.

In another embodiment shown in FIG. 4, the ground-contacting part 11 is shaped like a rock king chair, and an adjustment device 9 is attached to the pivot part 7 between the rear legs 2 and the backrest part 3. This is to adjust the bending and stretching strength of the rear legs 2 and the backrest 3, and in yet another embodiment shown in FIG. An adjustment device 6 is provided on the front leg 4 to adjust the bending and stretching strength of the front legs 4 and the seat portion 5.

In the present invention, as described above, the bendably hinged backrest and the seat are respectively pivotally supported on the chair body, so that the user can sit down on the seat and lean his or her back against the backrest. It is possible to train by bending the backrest and the seat part together, and since an adjustment device is attached to each connection point to freely adjust the bending strength of the connection points, the bending strength of the connection points can be adjusted. This allows each person to choose the intensity of exercise according to their physical strength, muscle training, flexibility exercise, etc., and allows each person to perform beauty training that suits them. Since the space between the chair and the seat can be fixed, the reversibility is fixed even when getting up and down from the training device, preventing accidents caused by falls or sudden reversals.In addition, it can be used as a regular chair. It also has the advantage of having the following functions.

[Brief explanation of the drawing]

FIG. 1a is a perspective view of one embodiment of the present invention, FIG. 1b is a partially enlarged perspective view of the same as the above, FIG.
FIG. 4 and FIG. 3 are explanatory views of the same use, FIG. 4 is a perspective view of another embodiment, and FIG. 5 is a partial perspective view of still another embodiment. In the figure, 1 is the chair body, 2 is the rear leg, 3 is the backrest, 4 is the front leg, 5 is the seat, 6 is the adjustment device, γ and 8 are the pivot parts, 9
is the hinge part.

Claims (1)

[Claims] 1. The backrest, which is swingably supported on the back legs of the chair body, and the seat, which is swingably supported on the front legs of the chair body, are hinged so that they can be bent, and the bending strength of the connection points can be adjusted. An adjusting device is attached to at least one of the pivot points between the rear legs and the backrest, the pivot points between the front legs and the seat, and the hinge between the seat and the backrest. A training device with a bending/stretching strength adjustment device.