JP2002360550A - Instrument for measuring gripping force of toe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a measuring instrument capable of measuring the gripping force of toes. SOLUTION: The instrument has a means for measuring the force of pulling a gripping member toward the rear of a foot when the gripping member which can be gripped with at least one toe is gripped by a toe by regulating the forward movement of the foot with a foot movement regulating means which is in contact with at least part of an instep to a shin. The instrument is further provided with a means for fixing the part measured with the measuring means to the foot movement regulating means so as to keep a prescribed distance to the foot movement regulating means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to an apparatus for measuring a force to grip a toe.

[0002]

2. Description of the Related Art The inventor of the present invention has found that the gripping force of a toe is effective as an index for knowing a failure of a foot or a state of a foot, and is conducting research on it. For this reason, it has become necessary to measure the gripping force of the toes. As a device for measuring the grip force of a finger, a grip force meter for measuring the grip force of a hand has been widely known. The grip force meter is fixed to a thumb or a fixed portion that fixes between the thumb and the index finger, and is fixed to a grip portion and a fixed portion that can be gripped with the index finger, the middle finger, the ring finger, and the little finger and that can move in the grip direction, and a fixed portion of the grip portion. And a measuring part for measuring the force in the direction.

[0003]

However, in the hand dynamometer for measuring the grip strength of the hand, since the object to be measured is a hand, the measurement part is fixed to the thumb or the movement of the finger from the index finger to the middle finger between the thumb and the index finger. Although possible, it is difficult to fix the measurement part with the thumb or between the thumb and the index finger in the case of the toes. That is, the thumb is oriented in the same direction as the other four fingers, and since it bends in the same direction, it is almost impossible to fix the measurement portion with the thumb. Also,
Although the fixation between the thumb and the forefinger is possible, accurate measurement is difficult because bending between the thumb and the forefinger also moves between the thumb and the forefinger. That is, the grip force of the toe cannot be measured by the structure of the hand grip meter. In view of the above problems, an object of the present invention is to provide a measuring device capable of appropriately performing a toe grip force.

[0004]

In order to solve the above-mentioned problems, the present invention has the following arrangement. The invention according to claim 1 is a toe gripping force measuring device, wherein the forward movement of the foot is restricted by the foot movement restricting means abutting at least a part of the portion from the instep to the shin. And, when a gripping member that can be gripped by at least one of the toes is gripped by the toe, the gripping member has a measuring unit that measures a pulling force behind the foot, and a measurement site of the measuring unit is Fixing means is provided for fixing to the foot movement restricting means so as to keep a predetermined distance from the foot movement restricting means.

[0005] The part from the instep to the shin refers to any of the instep, the front of the ankle, and the front of the shin. The forward movement of the foot movement restricting means means a relative movement with respect to the measuring means. Further, the predetermined distance is sufficient if a distance between a predetermined point of the measuring means and a predetermined point of the foot movement restricting means is maintained. That is, when the measuring means is rotatably fixed by the fixing means, there is a change in the distance due to the rotation, but it is sufficient if the measuring means is always kept closer than a certain distance. The measurement site is a portion to which a load is applied for measurement by the measurement unit. With such a configuration, the measurement site of the measurement unit is relatively fixed with respect to the movement of the toe.

According to a second aspect of the present invention, in the apparatus for measuring a gripping force of a toe, the fixing means includes a pedestal member for supporting a sole, and a toe side of the pedestal member when the sole is supported. A measuring instrument fixing member for fixing the measuring means,
The pedestal member includes a columnar column member provided on the heel side when supporting the sole of the pedestal member and fixed upward with respect to the pedestal, and a connecting member for connecting the column member and the foot movement restricting means. Things. With this configuration, the pedestal member is stabilized by stepping on the pedestal member with the foot, and the measuring means and the column member fixed to the stable pedestal member are also stabilized.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a perspective view of a toe grip force measuring apparatus according to the present invention. FIG. 2 shows a plan view of the toe grip force measuring device, and FIG. 3 shows a left side view of the toe grip force measuring device. This toe grip force measuring device is roughly divided into a pedestal member 10, a measuring unit 20, and a column member 30.

The pedestal member 10 is a flat hollow box-shaped body made of iron, and has a concave portion for fitting the measuring unit 20 near one side of the center of the upper surface. A ruler 12 for measuring the length of the foot is provided on one side of the upper surface of the pedestal member 10 adjacent to the side where the recess is formed. The ruler has an L-shaped cross section, one surface of which is joined to the side surface of the base member 12, and the other surface on which the scale is formed is provided above the upper surface of the base member 10 so as to be parallel to the upper surface of the base member 10. In addition, a measurement positioning member 11 having a vertical plane for making the heel of the foot placed on the pedestal member 10 coincide with the zero-length point of the ruler 12 is provided on the upper surface of the pedestal member 10. A first vernier portion 13 that slides in the longitudinal direction of the ruler 12 and extends at a right angle to the ruler is provided to adjust the position of the tip of the foot. The first vernier section 13 is further provided with a ruler for measuring the width of the foot, and further, in order to adjust the side position of the foot,
The first vernier portion 13 is slidable in the longitudinal direction,
Second vernier section 1 extending perpendicular to vernier section 13
4 are provided.

The measuring unit 20 includes a gripper 21, a gripper rotation support member 22a, a gripper fulcrum member 22b, a gripper distance adjusting screw 23, a spring member 24, a fixing member 25, and a load cell 2.
6a, measurement value display device 26b, fixing screw 2 with handle
7a, fixing screw 27b, ruler 28, measuring instrument fixing member 2
9. FIG. 4 is a cross-sectional view taken along the line AA in FIG. 2 to facilitate understanding of the structure of the measuring unit 20. The measuring device fixing member 29 is a rectangular plate-like body with both long sides bent upward. Also, two long holes are formed along both long sides. The load cell 26a serving as a measurement site for measuring the load of the measuring instrument fixing member 29 is fixed. The measurement device fixing member 29, the pedestal member 10, and the column member 30 form a fixing unit.

The grip 21 is a cylindrical member made of synthetic resin. The curved surface of the grip 21 is gripped by the toes. The grip 21 is attached to the grip rotating support member 22a. The gripping portion rotation support member 22a is a substantially isosceles triangular plate-like body whose base is bent upward. The grip 21 is fixed to a portion bent upward, and the vicinity of an isosceles triangular vertex is
It is rotatably fixed to the holding portion fulcrum member 22b. That is,
The grip 21 is fixed so as to freely rotate in the horizontal direction with respect to the grip fulcrum member 22b. Grip portion fulcrum member 22
b is a rectangular plate-like body, and the side opposite to the side to which the gripping portion rotation support member 22a is attached is bent upward. A hole into which the screw portion of the gripper distance adjusting screw 23 can be inserted is formed in the upwardly bent surface.

The gripping distance adjusting screw 23 is a male screw provided with a knob made of synthetic resin at the base end, and is inserted into a hole provided in the gripping portion support member 22b such that the knob is positioned on the gripping portion 21 side. You. The knob cannot pass through the hole. The male screw is formed by a spring member 24 described later.
Engages with a female screw provided at the tip of the moving shaft 24c.
Thus, the maximum distance between the holding portion support member 22b and the moving shaft 24c of the spring member 24 can be adjusted by turning the holding portion distance adjusting screw 23. The spring member 24 is
As shown in FIG. 4, a compression spring 24b is contained in a hollow cylindrical body portion 24a, and a moving shaft that passes through the center axis of the body portion 24a and protrudes from the body portion 24a and is provided so as to be movable in the central axis direction. 24c. The proximal end of the moving shaft 24c is engaged with one end of the compression spring 24b inside the body portion 24a. When the moving shaft 24c is moved outward, the compression spring 24b contracts, and the moving shaft 24c is returned to the inside. A force is generated. A female screw that engages with the gripping distance adjusting screw 23 is formed at the tip of the moving shaft 24c. A fixed shaft 24d located on the center axis of the body 24a is provided on the side of the body 24a where the movement shaft 24c does not project. The tip of the fixed shaft 24d is fixed to the load cell 26a by a screw. Therefore, the spring member 24 can be removed and replaced.

The fixing member 25 is a plate member having an L-shaped cross section, and one surface is fixed to the measuring instrument fixing member 29. The surface that rises vertically is parallel to the surface that is bent upward of the holding portion support member 22b, and is provided with a hole into which a portion forming the female screw of the moving shaft 24c of the spring member 24 is inserted. I have. Further, a rubber plate is stuck to the gripping portion support member side 22b of this surface, so that the gripping portion support member 22b is pulled by a spring member 24 described later and absorbs an impact hitting the fixing member 25. I have. The load cell 26a converts a change in load into a voltage, and the measured value display device 26b
The load is digitally displayed as a numerical value from the change in the voltage value generated from 6a. Note that the load cells 26a,
The measurement value display device 26b is manufactured by Shiro Corporation, "DPX-
50T-DPU ". Here, since the load cell 26a is fixed to the fixed shaft of the spring member 24 as described above, the pulling force from the grip portion 21 is changed to a voltage value.

A fixing screw 27a with a handle and a fixing screw 27b connect the measuring instrument fixing member 29 fitted in the concave portion of the pedestal member 10 to the pedestal member 10 through two elongated holes provided in the measuring instrument fixing member 29. It is fixed. A handle made of a synthetic resin that can be turned by hand is provided at the tip of the fixing screw 27a with a handle. In this way, through the long hole provided in the measuring instrument fixing member 29,
Since the measuring device fixing member 29 is fixed to the pedestal member 10, the position of the gripping portion of the measuring device fixing member 29 in the moving direction can be freely adjusted. The reason why the fixing screw 27a with a handle is used is that the measuring instrument fixing member 2 is used.
When adjusting the position of 9
This is because the provisional position adjustment can be performed only by the reference numeral 7a.
The fixing screw 27b is fastened by a screwdriver when the positioning is completed by the temporary position adjustment. The ruler 28 is for measuring the contact position of the gripper 21 whose distance has been adjusted by the gripper distance adjusting screw 23,
The grip 21 is installed so that a fixed portion of the grip 21 points to the scale 0 when the grip distance adjusting screw 23 is tightened most.

The column member 30 is a square column having a side of about 50 mm, and is fixed so as to be substantially in contact with the center of the side of the pedestal member 10 opposite to the side where the measuring section 20 is attached. The columnar member 30 has fastening belts 31a, 31a.
b is provided. Each of the fastening belts 31a and 31b is a belt body, and is provided with a hook-and-loop fastener so that the front surface of one end and the back surface of the other end are engaged. The fastening belt 31a mainly fixes the ankle, and the fastening belt 31b mainly fixes the shin. The fastening belts 31a and 31b form a leg movement restricting means and form a connecting member for connecting the leg movement restricting means to the column member.

Next, a method of using the toe gripping force measuring device having the above configuration will be described. First, when measuring the toe grip force, the foot to be examined is placed on the pedestal member 10 so that the tip faces the measuring unit 20, and the back of the heel is attached to the column member 30. Next, it is tested whether the toes can be gripped by the gripping portion 21 or not. At this time, when the engagement of the toes is shallow, the distance between the moving shaft 24c of the spring member 24 and the grip 21 is increased by turning the gripping distance adjusting screw 23. Conversely, when the engagement of the toes is deep, the moving shaft 24c is used. An appropriate state is adjusted by reducing the distance between the handle and the grip 21. Note that the gripper rotation support member 22 a to which the gripper 21 is attached is a gripper fulcrum member 2.
2b, it freely rotates in the horizontal direction, so that when the toe is put on the gripper 21, the gripper 21 naturally rotates appropriately along the tilt from the thumb to the little finger of the toe. I do. Then, the ankle is fixed to the column member 30 with the fastening belt 31a, and at the same time, the shin is fixed to the column member 30 with the fastening belt 31b. From this state, the grip portion 21 is gripped in the heel direction with the toes and pulled. Thereby, the load cell 26
Since a load is applied to a, the load value displayed on the measured value display device 26b is read. This completes the measurement of the toe grip force.

When measuring the size of the foot, the foot to be measured is placed on the pedestal member 10 and the back of the heel is brought into contact with the measurement positioning member 11, and at the same time, the side of the foot is
Apply to 2. In this state, the first vernier section 13 is moved so as to touch the foot, and the scale of the ruler 12 pointed to by the reference position of the first vernier section 13 at this time is read. This is the length of the foot. Next, the second vernier section 14 is moved to the ruler 12.
Contact the side of the foot opposite to the side that is in contact with the first vernier portion 14 at this time.
The scale of the ruler on the vernier section 13 is read. This is the width of the foot. This completes the measurement of the foot size.

In the above-described embodiment, the measuring section is completely fixed to the pedestal member, but it can be rotated. FIG. 5 is a sectional view showing a rotatable measuring unit. This shows a sectional view at the same position as the sectional view of FIG. The measuring section is rotatably fixed to a substantially end portion of the base member 10 via a hinge 29a, and is connected between the base member 10 and the lower surface located directly below the grip 21 of the measuring instrument fixing member 29 of the measuring section. Compression spring 29b between
Is provided. With such a structure, when the position of the toe is lowered by bending the toe, the grip portion 21 can also follow the lower position, and the burden on the toe can be reduced. Further, since the position of the load cell 26b is fixed with respect to the movement of the grip 21, there is no problem in measuring the load.

In the above embodiment, the grip 21 is gripped by all of the toes. However, the grip may be gripped by one toe. For example, the width of the grip portion 21 is reduced and the thickness thereof is reduced to make the shape suitable for gripping with one toe, and the width of the column member 30 is increased to prevent the movement of the foot in the left-right direction. Make it possible. Thus, the grip force of one toe can be measured by arranging one toe so as to coincide with the axis on which the load of the load cell 26a is applied. Further, it is also possible to arrange a piezoelectric pad for each width of the toe on the grip portion 21 and measure a change in voltage by the piezoelectric pad to obtain a force generated by each toe.

Further, in the present embodiment, the movement of the foot relative to the load cell is fixed via the pedestal member and the column member, but the relative distance between the load cell and the load cell for measuring the load of the foot is regulated so as to be within a certain range. Any form is possible if possible. For example, as shown in FIG. 6, a relative movement between the leg and the load measuring means is achieved by a pressing portion 41 for suppressing the front of the leg shin and a pipe-shaped connecting member 42 for fixing the pressing portion 41 from the tip of the measuring portion. It is also possible to use a method that regulates the above.

[0020]

As described above, the present invention has the following effects. According to the first aspect of the present invention, in the toe grip force measuring device, the movement of the measuring means for measuring the grip force with respect to the movement of the toe is relatively fixed, so that the grip force can be properly measured. it can. According to the second aspect of the present invention, the measuring means and the column member are fixed to the pedestal member that is stabilized by stepping on the foot, and furthermore, since the foot is fixed to this column member, the gripping force of the toe can be reduced in a stable state. It becomes possible to measure.

[Brief description of the drawings]

FIG. 1 is a perspective view of a toe gripping force measuring device.

FIG. 2 is a plan view of the toe gripping force measuring device.

FIG. 3 is a left side view of the toe gripping force measuring device.

FIG. 4 is a sectional view taken along line AA in FIG. 2;

FIG. 5 is a cross-sectional view illustrating a toe gripping force measuring device in which a measuring unit is rotatable.

FIG. 6 is a left side view of the toe gripping force measuring device showing a modified example of the foot fixing method.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Pedestal member 20 Measuring part 21 Gripping part 26a Load cell 26b Measurement value display device 29 Measuring equipment fixing member 30 Column member 31a, 31b Fastening belt

Claims (2)

[Claims] 1. A foot movement restricting means that contacts at least a part of a portion from the instep to the shin and restricts forward movement of the foot, a gripping member that can be gripped by at least one toe, When the gripping member is gripped by a toe, measuring means for measuring a force with which the gripping member is pulled to the rear of the foot, and a measurement site of the measuring means is kept at a predetermined distance from the foot movement restricting means. And a fixing means for fixing to the foot movement restricting means. 2. The fixing means, comprising: a pedestal member for supporting a sole; a measuring instrument fixing member for fixing the measuring means to a toe side when the sole of the pedestal member is supported; The pillar-shaped column member fixed upward with respect to the pedestal provided on the heel side when supporting the sole, and a connecting member that connects the column member and the foot movement restricting means. Gripping force measuring device.