JPH11299758A - Instrument to measure recovery of bending motion function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an instrument to measure the recovery of bending motion function which prevents an operation frame from rotating accidentally when reading the scale with hand removed from the operation frame. SOLUTION: The instrument to measure the recovery of bending motion function 10 is composed of a disc 11 with a scale in units of angle, a reference frame 16 fixed to the disc, and an operation frame 21 which is pivotally attached to the center of the disc 11 through male and female shafts 17, 18, and indicates any point of the scale of a scale plate 13 when rotated. At the back of the disc 11, dent parts are provided at specified angles, and at the side of the operation frame 21 facing to the disc 11, a flexible projection is provided which fits into the dent parts sequentially each time the operation frame 21 rotates at a specified angle. Even if releasing the operation frame 21 after rotating it, as the flexible projection fits into a dent part, the operation frame 21 is supported at the position and hard to rotate.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recovery measuring instrument for measuring the recovery status of a person undergoing rehabilitation for recovering, for example, a flexion function.

[0002]

2. Description of the Related Art Conventionally, when a failure occurs in a flexion function of a joint or the like, the disabled person often undergoes rehabilitation for restoring the flexion function to heal to a healthy person level. When performing such rehabilitation, the bending angle of a joint or the like may be measured using a measuring device in order to check the degree of recovery.

As such a measuring instrument, for example, one disclosed in Japanese Utility Model Publication No. 54-18876 is known. As shown in FIG. 6, the measuring device includes a reference frame 101 formed integrally with a circular base plate 102, a circular scale plate 103 provided on the base plate 102, and a center of the scale plate 103. An operation frame 104 having a pointer movably pivotally connected thereto, and the operation frame 104
3, a male and female shaft 105 is provided. This measuring device will be described by taking as an example the case of measuring the flexion movement function of a knee joint. First, the center of the scale plate 103 is aligned with the knee which is the joint axis, and in this state, the reference frame 101 is fixed with a band or the like. It is fixed so as to substantially coincide with the axis of the thigh, and the operating frame 104 is pressed by hand so as to substantially coincide with the axis of the lower leg. Then, the knee is bent while the operating frame 104 is pressed against the lower leg by hand, and the scale indicated by the pointer of the operating frame 104 is read when the subject can no longer bend the knee.

[0004]

By the way, in the measuring device shown in FIG. 6, when measuring the bending movement function as described above, the scale indicated by the pointer is read by releasing the hand from the normal operation frame 104. However, in this case, the operating frame 104 is supported at that position even after the hand is released by the frictional force around the male and female shafts 105.

However, when the operation frame 104 has a certain weight, there is a problem that the operation frame 104 cannot be supported anymore by only the frictional force around the male and female shafts 105 and the operation frame 104 rotates. In addition, when the operating frame 104 is slightly rotated when the hand is released from the operating frame 104, the measurer may read the scale and measure as it is without noticing the fact, and the measurement accuracy is not sufficiently obtained. There was also a problem.

Further, when the male and female shafts 105 are tightened tightly to prevent the operation frame 104 from rotating when the hand is released from the operation frame 104, the operation frame 1
04 becomes difficult to rotate smoothly. Conversely, if it is weakly fastened, the operating frame 1
Since 04 rotates and measurement accuracy cannot be obtained,
There is also a problem that it is difficult to appropriately adjust the degree of fastening of the male and female shafts 105.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and a first object of the present invention is to provide a measuring device for recovering a bending motion function. The object of the present invention is to provide an object that does not rotate, and a second object is to allow a measurer to easily notice that the operating frame is slightly rotated when the hand is released from the operating frame. A third object is to provide an apparatus which can easily adjust the degree of fastening when fastening the operation frame to the center of the disk.

[0008]

Means for Solving the Problems and Effects of the Invention In order to solve the above-mentioned problems, a recovery measuring device for a bending motion function according to the present invention comprises a disk provided with a graduation in angular units, and a disk which cannot rotate. A reference frame provided, an operating frame provided rotatably around the center of the disk, and capable of indicating an arbitrary position of the scale when rotated, and an operating frame provided at predetermined angles on the disk. A concave portion, and an elastic projection provided on a side of the operation frame facing the disk and sequentially fitted into the concave portion each time the operation frame rotates by the predetermined angle.

In this recovery measuring instrument, each time the operating frame is rotated by a predetermined angle (for example, an angle defined in the range of 1 to 10 °), an elastic projection provided on the disk side of the operating frame is provided with a concave portion provided on the disk. Are sequentially fitted. When the elastic projections are fitted into the recesses, the operating frame is relatively firmly supported at the position even when the hand is released from the operating frame, and is easily operated by the weight of the operating frame, an external force exerted on the operating frame, and the like. Does not rotate. Therefore, according to this recovery measuring device, there is obtained an effect that the operation frame does not unexpectedly rotate when the scale is read by releasing the hand from the operation frame.

It is preferable that the reference frame and the operating frame have rigidity so as not to be deformed during the rotation operation, and are preferably made of metal, for example. Also,
The elastic projection is not particularly limited as long as it can be displaced by elasticity between the operation frame and the disk. Further, it is preferable that two or more concave portions are arranged in the radial direction at every predetermined angle, and that the elastic projections are provided so as to be fitted into the concave portions arranged in the radial direction in order to effectively obtain the above-mentioned effects. Furthermore,
It is preferable to provide the concave portion near the outer periphery rather than near the center of the disk in order to effectively obtain the above effect.

In the recovery measuring instrument according to the present invention, it is preferable that the concave portion is made of metal, and the elastic projection is a metal convex portion which is urged toward the disk by an elastic body from the operation frame. In this case, when the operation frame is rotated by a predetermined angle, the metal protrusion collides with the metal recess and a metal sound is emitted, so that the measurer turns the operation frame after releasing the hand from the operation frame. You can easily recognize whether or not. For this reason, even if the operation frame is rotated after releasing the hand, there is no possibility that the measurement is performed as it is,
This is advantageous in measurement accuracy.

At this time, it is preferable that the protrusion urged by the elastic body can adjust the amount of protrusion from the operation frame toward the disk. In this case, even if the elastic body deteriorates after long-term use, the protrusion amount is increased to prevent the operation frame from unexpectedly rotating when the hand is released from the operation frame. it can.

In the recovery measuring instrument according to the present invention, it is preferable that the operating frame is rotatably fastened to the center of the disk via an elastic body. In this case, since the operation frame is fastened through the elastic body, even if the work frame is tightly tightened, the fastening force is reduced by the elastic body, and the rotation of the operation frame becomes smooth. For this reason, it is easy to adjust the degree of fastening when the operating frame is fastened to the center of the disk.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view, FIG. 2 is a rear view, FIG. 3 is a right side view, and FIG.

The recovery measuring device 10 mainly includes the disk 1
1, a reference frame 16 and an operation frame 21. The disk 11 includes a metal circular substrate 12 and a resin scale plate 13 attached to the surface thereof. The graduation plate 13 is provided with graduations in angle units.
A scale is attached to every °, and an angle is displayed every 10 °.

An outer concave portion 14a and an inner concave portion 14b are provided on the back surface of the circular substrate 12. The outer recess 14a is
In the vicinity of the outer periphery of the disk 11, the inner recess 1 is provided every 5 °.
The reference numerals 4b are also provided at intervals of 5 ° in the outer periphery of the disk 11 and near the center of the center of the disk 11. The outer concave portion 14a and the corresponding inner concave portion 14b are arranged in the radial direction of the disk 11.

The reference frame 16 is made of metal, and is provided at the center of the disk 11 via a female shaft 17 and a male shaft 18.
And is stopped by screws 19 on the outer peripheral side of the disk 11 so that the disk 11 cannot rotate. The reference frame 16 has a reference line L1 that coincides with the radial direction of the disk 11, and the reference line L1 coincides with “0 °” of the scale plate 13.

The operating frame 21 is made of metal, and is attached to the back side of the disk 11 so as to be rotatable at the center of the disk 11 via the female shaft 17 and the male shaft 18. The operating frame 21 has a measurement line L2 that coincides with the radial direction of the disk 11. In addition, the operation frame 21 includes:
A pointer plate 22 provided with an arrow 22 a for indicating the scale of the scale plate 13 is fixed with a screw 23. The arrow 22a attached to the pointer plate 22 is provided so as to be on the same line as the measurement line L2.

An outer convex portion 24a and an inner convex portion 24b are provided on the side of the operation frame 21 facing the disk 11 in the radial direction. Each of the protrusions 24a, 24b is a metal ball bearing, and is fixed to one end of springs 26a, 26b as elastic bodies disposed in the screw holes 25a, 25b of the operation frame 21, and the disk 11 is fixed by the springs 26a, 26b. Is biased to the side.
The other ends of the springs 26a and 26b are connected to the screw holes 25.
a, 25b are in contact with the hexagonal screws 27a, 27b screwed to the protrusions 24a, 24b from the rear surface of the operation frame 21 according to the screwing amounts of the hexagonal screws 27a, 27b.
The protrusion amount of b can be adjusted.

The female shaft 17 is provided with a step hole 28 of the reference frame 16.
And the foot of the female shaft 17 is inserted into the step hole 29 of the operation frame 21 via the first washer 31. On the other hand, the male shaft 18 has the second
The female screw 17 is screwed from a step hole 29 of the operation frame 21 to a screw hole 34 provided in a foot portion of the female shaft 17 while passing through the washer 32 and the spring 33.

Next, an example of use of the recovery measuring device 10 of the present embodiment will be described. Here, a case of measuring the degree of recovery of the knee flexion function will be described with reference to FIG. First, the subject P is seated on a chair and the recovery measuring device 10
The male and female shafts 17 and 18 are aligned with the knees, which are joint axes, and in this state, the reference frame 16 is fixed with a fixture 35 such as a band so as to substantially coincide with the axis of the thigh, and the operation frame 21 is substantially aligned with the axis of the lower leg. Hold by hand to match. Then, the knee is bent while the operating frame 21 is pressed against the lower leg by hand. At this time, an excessive force may be applied to the reference frame 16 and the operation frame 21, but there is no possibility that the frames 16 and 17 are deformed because they are made of metal. The operating frame 21 rotates as the subject bends the knee, but the outer convex portion 24a and the inner convex portion 24b provided on the operating frame 21 are provided with the outer concave portion 14a and the inner concave portion 14b provided on the circular substrate 12. , So that a clicking sound is heard.

Thereafter, when the subject no longer bends his knees, he releases his hand from the operating frame 21 and reads the scale on the scale plate 13 indicated by the arrow 22a of the pointer plate 22. When the operator releases the operation frame 21, the outer protrusion 24 a and the inner protrusion 24 b provided on the operation frame 21 are fitted into the outer recess 14 a and the inner recess 14 b provided on the circular substrate 12. Is relatively firmly supported at that position, and does not easily rotate due to the weight of the operation frame 21 or external force applied to the operation frame 21. Therefore, according to the recovery measuring device 10, the operation frame 21 does not unexpectedly rotate when the scale is read by releasing the hand from the operation frame 21. In the present embodiment, 5 ° is adopted as the predetermined angle, and the concave portions 14a and 14b are provided every 5 °, so that the measurement error is less than 5 °.

Further, after releasing the hand from the operation frame 21, the measurer suddenly rotates the operation frame 21 due to the metal sound emitted when the protrusions 24a, 24b and the recesses 14a, 14b are fitted. It can be easily recognized. For this reason, even if the operation frame 21 rotates unexpectedly after the hand is released, the possibility of performing the measurement as it is is eliminated, which is advantageous in measurement accuracy.

Further, by adjusting the screwing amounts of the hexagonal screws 27a and 27b, the disk 1 of the outer convex portion 24a and the inner convex portion 24b is adjusted.
By adjusting the amount of protrusion to the one side, for example, even when the springs 26a and 26b are deteriorated after long-term use, by increasing the amount of protrusion, the operation is performed when the hand is released from the operation frame 21. Unexpected rotation of the frame 21 can be reliably prevented.

Further, since the operating frame 21 is fastened by the male and female shafts 17 and 18 via the spring 33, even if it is tightly tightened, the fastening force is reduced by the spring 33, and the turning of the operating frame 21 is smooth. become. For this reason, it becomes easy to adjust the degree of fastening when fastening the operation frame 21 to the center of the disk 11.

The embodiments of the present invention are not limited to the above-described embodiments, and it goes without saying that various embodiments can be adopted as long as they fall within the technical scope of the present invention. For example, in the above embodiment, the outer recess 14a and the inner recess 14b are provided, but only one of the recesses may be provided. Further, the recovery measuring device 10 may be made of resin.

[Brief description of the drawings]

FIG. 1 is a front view of a bending movement function recovery measuring instrument of the present embodiment.

FIG. 2 is a rear view of the recovery measuring instrument for bending motion function of the present embodiment.

FIG. 3 is a right side view of the recovery measuring instrument of the bending motion function of the embodiment.

FIG. 4 is a side cross-sectional view of the bending motion recovery measuring instrument of the present embodiment.

FIG. 5 is an explanatory view of the use of the measuring instrument for recovery of flexion movement function of the present embodiment.

FIG. 6 is a front view of a conventional recovery measuring device for bending movement function.

[Explanation of symbols]

Reference numeral 10: recovery measuring instrument, 11: disk, 12: circular substrate, 13: scale plate, 14a: outer concave portion, 1
4b: inner concave portion, 16: reference frame, 17
..Female shaft, 18 ... Male shaft, 21 ... Operation frame,
22 ... pointer plate, 24a ... outer convex part, 24b ...
・ Inner convex portions, 25a, 25b: screw holes, 26a, 2
6b: spring, 27a, 27b: hexagon screw, 31: first washer, 33: spring, 33
... Second washer 32, L1... Reference line, L2.

Claims (4)

[Claims] 1. A disk provided with a graduation in units of angle, a reference frame provided non-rotatably on the disk, and provided rotatably about the center of the disk, and An operating frame capable of indicating an arbitrary position of the scale; a concave portion provided on the disk at a predetermined angle; and a side of the operating frame facing the disk, wherein the operating frame rotates the predetermined angle. And a resilient projection which is fitted into the recess each time the bending is performed. 2. The bending according to claim 1, wherein the recess is made of metal, and the elastic projection is a metal projection urged toward the disk by an elastic body from the operation frame. Motor function recovery measuring device. 3. The recovery measurement of the bending motion function according to claim 2, wherein the protrusion urged by the elastic body can adjust an amount of protrusion from the operation frame toward the disk. vessel. 4. The recovery measurement of the bending motion function according to claim 1, wherein the operation frame is rotatably fastened to the center of the disk via an elastic body. vessel.