JP3179711B2 - Grip strength meter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grip strength meter, and more particularly to a grip strength meter capable of obtaining a stroke according to the magnitude of the grip force when gripping.

[0002]

2. Description of the Related Art As a well-known method for evaluating the muscular strength of a hand, there is a method of measuring the grip strength of a subject using a grip strength meter. FIG. 3 and FIG. 4 are schematic views showing the structure of a grip force meter conventionally used.

[0003] As shown in the figure, a conventional grip meter has a frame 1
And a middle grip 3 movably attached inside the frame 1
And a transmission rod 5 fixed to the middle grip 3 and transmitting a force (grip force) applied between the frame 1 and the middle grip 3, and measuring the grip force via the transmission rod 5 fixed to the frame 1. The load cell 7 is a main component. In order to actually measure the grip force, a structure is used in which the grip between the frame body 1 and the middle grip 3 is gripped by hand, and the maximum grip force transmitted by the transmission rod 5 is detected by the load cell 7 and output as an electric signal. It has become.

[0004]

However, in the conventional grip force meter using the load cell having the above configuration, there is no particular problem for the purpose of detecting the maximum grip force, but the evaluation of the grip force according to the degree of grip (for example, muscle strength adjustment) (Evaluation of ability), there were no strokes, and there were some subjects who were not satisfied in terms of actual grip feeling, and accurate muscle strength adjustment ability could not be evaluated.

[0005] The present invention has been made in view of the above-mentioned problems, and has the following objects. (1) A grip force meter capable of giving a subject an appropriate grip feeling by applying a stroke proportional to the magnitude of the applied grip force when a grip force is applied. (2) The conventional maximum grip strength measurement without a stroke can be measured by the same grip force meter. (3) To provide a grip force meter capable of evaluating a static or dynamic following ability of a hand muscle strength adjusting ability.

[0006]

In order to achieve the above object, the following means is proposed. In the grip meter of the present invention , a frame, a moving body supported so as to be able to linearly move back and forth in the frame, a pressure detection element fixed to the frame,
A pressure member that is connected to the moving body and presses the pressure detection element when the moving body moves, and moves the moving body in a linear direction between the frame and the moving body. In a gripping force meter that applies a force to move and detects the force, a first transmission member connected to the moving body and supported in a linearly movable manner, and connected to the pressing member and supported in a linearly movable manner. A second transmission member, and an urging member interposed between the first transmission member and the second transmission member and urging them in opposite directions. I do.

In a grip force meter having such a configuration,
Since the urging member is provided between the first transmission member and the second transmission member, when a gripping force is applied between the frame and the moving body, the urging member is moved within the frame. The moving body moves while being extended or compressed. Therefore, an appropriate stroke can be obtained as compared with the case where the urging member is not provided.

In the grip force meter of the present invention, in the grip force meter described above , the frame is provided with a lock mechanism for restricting relative movement between the first transmission member and the second transmission member. It is characterized by the following.

In a grip force meter having such a configuration,
When the lock mechanism is released, the urging member acts to cause a large stroke. On the other hand, when the lock mechanism is actuated to eliminate the extension or compression of the urging member, the stroke disappears. Accordingly, the lock mechanism switches between the presence and absence of a stroke.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 are views showing an embodiment of a grip force meter according to the present invention. FIG. 1 is a front view showing a schematic configuration of a grip force meter of the present invention.

The grip force meter A has a frame (frame body) 11 and an inner portion of the frame 11 in the same manner as a conventional grip force meter.
Middle grip 13 (moving body) supported so that it can move back and forth linearly
, A load cell (pressure detecting element) 15 fixed to the frame 11, and a pressing member 17 connected to the middle grip 13 and pressing the load cell 15 when it moves. A first transmission member 21 connected between the middle grip 13 and the pressing member 17 and connected to the middle grip 13 to transmit a force (grip force) applied between the frame 11 and the middle grip 13; A second transmission member 41 for transmitting the force to the pressing member 17 and an urging member 31 for urging the second transmission member 41 are provided.

Here, the first transmission member 21 comprises a rod-shaped transmission rod 23 and a cylindrical spring seat 27 connected thereto. The transmission rod 23 has one end 24 fixed to the middle grip 13 using a grip width adjustment knob 29. Here, the distance between the frame 11 and the middle grip 13 before the grip force is applied can be adjusted by the grip width adjustment knob 29.

FIG. 2 is an enlarged schematic side view of the vicinity of the spring seat 27 as viewed from the side in FIG. Tip 25 of transmission rod 23
Is surrounded by a spring seat 27, and a second transmission member 41 is further disposed therearound. Here, the second transmission member 41 includes a spring cover 43 provided so as to cover the spring seat 27.
The pressing member 17 is fixed to the lower end portion 45 of the first member. The lower end 18 of the pressing member 17 faces the load cell 15 fixed to the frame 11.

The spring seat 27 is fixed at its upper end 28 to the transmission rod 23 by screwing, while the transmission rod 23 and the spring seat 27 are opened above the spring cover 43. Through the through hole 46.
A large diameter portion 29 having a large outer diameter is formed at the lower end of the spring seat 27, and a compression spring 51 is inserted as a biasing member (31) between the large diameter portion 29 and the upper portion of the spring cover 43. Have been.

An output electric signal from the load cell 15 is supplied to an output display section B via a cable 55. Further, as shown in FIG. 1, a lock mechanism 61 is provided on the side portion 12 of the frame 11. The lock mechanism 61 supports a stroke adjusting screw 63 through a hole 12 a formed in the side portion 12 of the frame 11, and the stroke adjusting screw 63 is a male screw member formed at the distal end thereof. 65 engages with a groove 71 formed on the upper part of the spring seat 27.

Next, a method of using the grip force meter A will be described with reference to FIGS. Lock mechanism 6 described above
1 is that when the stroke adjusting screw 63 is rotated, the male screw member 65 at the tip thereof is formed into a groove 7 formed in the spring seat 27.
1 to fix the spring seat 27 and the spring cover 43 in a vertical direction. First, how to use the case where the stroke adjusting screw 63 is inserted into the groove 71 (when the lock mechanism 61 is operated) will be described.

In this case, the spring seat 27 and the spring cover 4
Since 3 is integrated, it operates in the same manner as the conventional grip force meter.
That is, when a grip force is applied between the frame 11 and the middle grip 13, the force is transmitted to the transmission rod 23. The transmission rod 23 is fixed to the spring seat 27 by screwing, and the stroke adjustment screw 63 fixes the spring seat 27 and the spring cover 43 without the compression spring 51 therebetween.
Is transmitted to the pressing member 17 fixed to the lower end of the spring cover 43 via the spring seat 27 and the spring cover 43 to press the load cell 15. Therefore,
The grip force is converted into an electric signal by the load cell 15 and output. In this case, even if a force is applied, the compression spring 51 is not compressed. That is, the compression spring 51 does not contribute to the transmission of force.

Next, the stroke adjusting screw 63 is
The operation in the case of pulling out the lock mechanism (when the lock mechanism is released) will be described. In this case, since the stroke adjusting screw 63 is not interposed between the spring seat 27 and the spring cover 43, the two can be relatively moved. Therefore, when a grip force is applied between the frame 11 and the middle grip 13, the force is transmitted to the spring seat 27 via the transmission rod 23. Here, the lower portion of the spring seat 27 forms a large diameter portion 29, and the large diameter portion 2
Compression spring 5 interposed between the first spring 9 and the upper part of the spring cover 43
Force is applied to 1. The compression spring 51 is compressed, and the applied force is transmitted to the upper part of the spring cover 43 as it is. Therefore, the grip force is transmitted to the pressing member 17 and presses the load cell 15.

In this case, the spring seat 27 can move upward by the amount of compression of the compression spring 51 in accordance with the applied force, so that the middle grip 13 also moves upward (in the direction of the arrow in FIG. 1). Therefore, a stroke occurs in the middle grip 13. Here, since the deformation of the compression spring 51 is performed within the elastic deformation region, the stroke amount generated in the middle grip 13 is proportional to the applied grip force.

Further, once the gripping force is applied and then the gripping force is reduced, the compressed spring tends to return elastically. That is, the compression spring 51 is relatively extended, and the middle grip 13 is pulled downward (in the direction opposite to the arrow in FIG. 1). In this case, the force of the compression spring 51 pressing the upper part of the spring cover 43 is also weak, and the force of pressing the load cell 15 is also small. The grip force detected by the load cell 15 is converted into an electric signal. Then, the output electric signal is transmitted through the electric cable 55 and displayed on the output display section B. In the grip meter A, as described above, the usage of the two types of grip meters (with or without a stroke) is switched by attaching and detaching the stroke adjusting screw 63.

As described above, in the grip meter of the present invention, a large stroke corresponding to the grip force applied to the middle grip can be given. Further, the stroke of the grip force gauge can be provided or eliminated by simply switching the switch.

[0022]

As described above, according to the grip force meter of the present invention,
The following effects are obtained. That is, in the grip force meter of the present invention , since the biasing member is provided between the first transmission member and the second transmission member to transmit the grip force to the measurement unit, the stroke according to the grip force is applied to the middle grip. You can have.

Further, in the grip force meter of the present invention , the first
Since the lock mechanism that regulates the relative movement between the transmission member and the second transmission member is provided, the presence or absence of the stroke can be easily switched.

As described above, in the grip strength meter of the present invention, the grip strength meter can be provided with a stroke having a size corresponding to the grip strength, and an appropriate grip feeling is generated. Furthermore, the presence or absence of a stroke can be switched by a simple lock mechanism.

[Brief description of the drawings]

FIG. 1 is a front view of a grip force meter showing an embodiment of the present invention.

FIG. 2 is an enlarged side view of the vicinity of a telescopic portion of the grip force meter according to the embodiment of the present invention.

FIG. 3 is a front view of a conventional grip force meter.

FIG. 4 is a side view of a conventional grip force meter.

[Explanation of symbols]

 A ... grip force meter 11 ... frame 13 ... middle grip 15 ... load cell 17 ... pressing member 23 ... transmission rod 27 ... spring seat 31 ... urging member 43 ... spring cover 51 ... compression spring 61 ... locking mechanism 63 ... stroke adjustment screw

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A61B 5/22

Claims (1)

(57) [Claims] 1. A frame, a moving body supported so as to be capable of linearly moving back and forth in the frame, a pressure detecting element fixed to the frame, and a moving body connected to the moving body. A pressure member for pressing the pressure detecting element, and a gripping force for detecting a force between the frame and the moving body by applying a force for moving the moving body in a linear direction. A first device connected to the moving body and supported to be linearly movable;
A second transmission member connected to the pressing member and supported so as to be linearly movable; and a second transmission member interposed between the first transmission member and the second transmission member. An urging member for urging in the opposite direction , wherein the frame has a first transmission member and a second transmission portion.
Dynamometer, characterized in Rukoto locking mechanism provided for restricting the relative movement of the wood.