JPH07255873A - Load device for training machine - Google Patents

Abstract

PURPOSE:To provide a load device by which a load can be freely changed by rotating an output shaft after a relative angle between first and second arms and weight of weights arranged on first and second slide units installed on the tips of the respective arms are combined with each other. CONSTITUTION:An output shaft 3 is rotatably supported with columns 2 erected on a pedestal 1, and a first arm 4 is arranged on this output shaft 3 so as to be freely fixed at an optional angle, and a second arm 7 is fixed. First and second slide units 5 and 8 movable to optional positions are arranged on the tips of the respective arms 4 and 7, and weights 11 having optional weight are installed on the respective slide units 5 and 8 by set collars 12. Fixation and release of positions and an angle of the arm 7 and the weights 11 are performed by respectively operating levers 10. When it is used, optional means, for example, an arm, a pulley or a wide or the like are installed in (3a) parts of the output shaft 3, and a user rotates or tows these, and obtains a prescribed load, and performs training.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a load device for a training machine.

[0002]

2. Description of the Related Art Conventionally, a load device for a training machine is (a) a method in which a weight set in a weight stack is directly pulled up by a wire or the like via a pulley. (B) A method in which the weight set in the weight stack is directly or indirectly pulled up by a wire or the like via a cam. (C) A method in which a weight attached to the tip of one pendulum-moving arm is used as a direct load, as seen in leg extension machines. There were each.

[0003]

[Problems to be Solved by the Invention] However, the above (a)
In, the load is constant at any part of the stroke and cannot be varied. In (b), the pattern of load fluctuation is limited to the shape of the cam, and it is not possible to freely change the load without disassembling the device and replacing the cam, so a different device is required for each item. In (c), there is only a natural variation from zero at the bottom dead center of the arm to the maximum at the horizontal position (hereinafter referred to as zeromax load), and the variation pattern is fixed and cannot be changed. The range of motion of the user's joint may not match the load fluctuation. There were characteristics and drawbacks. And
No single device could use all of the methods. For this reason, the training facility has to be equipped with different devices according to the required load pattern, which has forced a great financial burden and a vast space. The present invention aims to solve the above problems with a simple device.

[0004]

The device of the present invention will be described with reference to the drawings. There is an output shaft 3 that rotates on a column 2 that stands on a pedestal 1, and the output shaft 3 has a first arm that can be fixed at an arbitrary angle. 4 and a fixed second arm 7 are attached. At the tip of each arm, there is a first slide unit 5 and a second slide unit 8 which can be moved to arbitrary positions. A weight 11 having an arbitrary weight is attached to the first slide unit 5 and the second slide unit 8 by a set collar 12. The position and the angle are fixed and released by operating the respective levers 10. From the portion a of the output shaft 3, the user attaches an arbitrary means, for example, an arm and rotates it. Alternatively, a load is obtained by attaching a pulley and pulling a wound wire. The present device is characterized by the above structure.

[0005]

The operation of this device is as follows according to the required load fluctuation and the range of motion of the joint of the user. In the load fluctuation pattern. (D) When a constant load such as the weight stack of (a) above is to be obtained, the weight 11 of the same weight is attached to each of the first slide unit 5 and the second slide unit 8 to rotate the output shaft 3 by 90 °. A certain load can be obtained in the area. (E) To obtain a variable load like the cam of (b), for example, a weight 11 corresponding to the initial load is attached to the first slide unit 5, and a weight 11 corresponding to the maximum load is attached to the second slide unit 8. And in the 90 ° rotation range of the output shaft 3, fluctuating load from the initial load to the maximum load.
Further, the reverse load can be obtained by reversing the structure of the weight. (F) In the case of obtaining a simple load such as that of the pendulum-moving arm in (c) above, the weight 11 is attached to only one of the first slide unit 5 and the second slide unit 8 so that the output shaft 3 becomes zero. You can get max load or vice versa.

[0006]

[Action] In the range of motion of the joint. (G) For a user with a small range of motion, the first arm 4 and the second arm
When the relative angle of the arm 7 is set to be larger than 90 ° (obtuse angle), the end point of the action of the weight 11 of the first slide unit 5 becomes high and the effective rotation range of the output shaft 3 becomes small. (H) If the user has a large range of motion, the first arm 4 and the second arm
When the relative angle of the arm 7 is set to be smaller than 90 ° (acute angle), the end point of the action of the weight 11 of the first slide unit 5 is lowered and the effective rotation range of the output shaft 3 is increased.

[0007]

In FIG. 1, the first counterweight 6 and the second counterweight 9 are attached for the purpose of preventing the weight of the apparatus itself from acting as a load. Further, the weight 11 and the set collar 12 are shown only in one direction, but in actual use, it is preferable that they are evenly arranged on the left and right.

[0008]

As described above, according to the present invention, it becomes possible to cover one device which has conventionally been required separately depending on the required load pattern, and since the mechanism is simple, there are few failures and the individual user. The range of motion can be easily adjusted by the difference. Also, due to the flexibility of the load pattern, it can be used in common for all events involving flexion and extension of joints. It can be effectively placed in a narrow space and is very economical.

[Brief description of drawings]

FIG. 1 is a perspective view of the present invention.

[Explanation of symbols]

1 is a pedestal 2 is a column 3 is an output shaft 4 is a first arm 5 is a first slide unit 6 is a first counterweight 7 is a second arm 8 is a second slide unit 9 is a second counterweight 10 is a lever 11 Is a weight 12 is a set color

Claims (1)

[Claims] 1. A relative angle between a first arm (4) and a second arm (7),
Training in which the load can be freely changed by rotating the output shaft (3) by combining the weights of the weights (11) attached to the first slide unit (5) and the second slide unit (8) attached to the respective tips. Machine load equipment