JPH0242305Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a device for measuring or training the muscle strength of limb muscles.

Prior Art A conventional device is disclosed in Japanese Patent Application Laid-Open No. 53-99689. In the technique disclosed in this publication, a movement mechanism having an arm rod is hooked to a main pillar set upright on the floor, and an appropriate attachment is selected and attached to the arm rod according to the part of the human body to be measured.

Problems to be Solved by the Invention In conventional devices, the movement mechanism and the bed for fixing the subject are separate, making it difficult and time-consuming to reproduce the limb position during measurement or training.

Furthermore, conventional devices have complicated configurations and are expensive. For this reason, it was only used in some research-based institutions and it was difficult to spread it to general clinical practice.

Means for solving the problems This invention solves the problems of the conventional technology.
This chair-type muscle strength measuring and training device has a simple structure, is inexpensive, convenient to use, and allows for more accurate muscle strength measurement and muscle training.

That is, in the present invention, a detector 9 for detecting the muscle force of an arm 5 having a rotating part 13 provided in the middle thereof is attached via a mounting rod 24, and the arm 5 is fixed to a mounting part 6 attached to a chair 4. This is a chair-shaped muscle strength measurement training device that you can wear.

Further, the detector 9 is attached to the arm 5 via a mounting rod 24 so that the mounting angle can be changed and fixed.

The mounting rod 24 also includes an external fitting frame portion 25 that is externally fitted onto the arm 5, a proximal portion 26 adjacent to the external fitting frame portion 25, and a distal portion that is attached to a portion distal from the proximal portion 26. 27, a bolt 28 protruding from the proximal portion 26 and penetrating through the distal portion 27;
It consists of a knob nut 29 that is screwed onto a portion protruding from the front part 27 of.

The chair 4 also includes a backrest 3, a seat 2, and legs 1.
The seat part 2 consists of a seat plate 33 supported by the legs 1, and a rail 31 supported horizontally by the legs 1.
The backrest portion 3 is movably mounted on the rail 31.
It consists of a movable body 3 to which the proximal end of the movable body 32 is fixed, and a stopper 34 that fixes the movement of the movable body 32.

Further, the arm 5 includes a base member 12 and a front member 14.
are connected by a rotating part 13, and the rotating part 13 is formed by inserting a spline shaft 16 through a portion where the proximal member 12 and the distal member 14 are overlapped, and the proximal member 12 and the distal member 14 are An angle scale plate 17 is attached to the base member 12 or the front member 14 to display the angle formed by the angle.

Further, the detector 9 is detachably attached to the attachment rod 24.

In addition, the mounting part 6 is equipped with an arm 5 for measuring upper limb muscle strength.
There are an upper limb attachment part 7 for inserting and attaching the leg, and a lower limb attachment part 8 for inserting and attaching the arm 5 for measuring lower limb muscle strength. This is what happens.

Further, the mounting rod 24 is made of a bar material having the same diameter as the diameter of the arm 5.

Embodiments Figures 1 to 5 of the attached drawings show embodiments of the present invention.
This will be explained in detail based on the diagram.

A chair 4 consisting of a leg part 1, a seat part 2, and a backrest part 3 is provided with mounting parts 6 on both sides of the backrest part 3 and the front part of the leg part 1 to insert and attach an arm 5.

The attachment portion 6 includes an upper limb attachment portion 7 provided on both sides of the backrest, and a lower limb attachment portion 8 provided at the front upper center portion of the leg portion 1.

A detector 9 for measuring muscle strength is attached to the arm 5, and an arm 10 for the upper limb is inserted and attached to the upper limb attachment part 7 when measuring and training the muscle strength of the upper limb, and an arm 10 for the upper limb is inserted and attached to the mounting part 7 for the upper limb when measuring and training the muscle strength of the lower limb. There is a lower limb arm 11 that is inserted into and attached to the lower limb attachment part 8. A pressure receiving piece 36 is attached to the front of the detector 9.

The arm 5 consists of a base member 12, a rotating part 13, and a front member 14. A hole 15 with a spline cut therein is bored, and a spline shaft 16 with a spline cut on the outer periphery over the length shown in arrow A in FIG. 5 is slidably inserted into the hole 15. An angle scale plate 17 is attached to the front member 14 of the rotating portion 13 to indicate the angle formed by the base member 12 and the front member 14.

A lid 18 is fixed to one end of the hole 15 of the rotating part 13 shown in FIG. A push button 38 is fixed to the other end of the spline shaft 16.

A square hole 20 for inserting the upper limb arm 10 is vertically bored in the upper limb attachment part 7, and a knob bolt 21 for fixing the upper limb arm 10 is screwed into one side of the square hole 20. Ru. Lower limb attachment part 8
has a square hole 22 through which the lower limb arm 11 is inserted.
is drilled in the same direction as the protruding direction of the lower limb attachment part 8, and a nozzle bolt 21 for fixing the arm is screwed into the side of the square hole 2.

A mounting rod 24 to which a detector 9 is attached is externally attached to the arm 5 for both the arm 10 for the upper limb and the arm 11 for the lower limb. The mounting rod 24 is attached to an external fitting frame portion 25 which is a frame that fits externally to the arm 5, a proximal portion 26 of a portion adjacent to the external fitting frame portion 25, and a portion beyond the proximal portion 26. It consists of a front part 27. The front part 27 is fitted onto a bolt 28 protruding from the base part 26, and a knob nut 29 is screwed onto the portion of the bolt 28 that projects from the front part 27. Base part 2
6 and the front part 27 are formed with an engaging part 37 which is formed by providing recesses and recesses that fit into each other on both parts. The mounting rod 24 for the upper limb is provided with a proximal part 26 and a distal part 27 on one side of the external fitting frame part 25, and the mounting rod 24 for the lower limb is provided with a proximal part 26 and a distal part 27 on both sides of the external fitting frame part 25.
6 and a front part 27 are provided, and when a lower limb attachment rod 24 is externally attached to one arm 5, the front part 27 protrudes from both sides of the arm 5.

The pedestal part 2 is supported by a leg part 1, and the leg part 1 is made up of two pillars 30 arranged in front and behind each other. A movable body 32 is movably mounted on 31 . The base end of the backrest portion 3 is fixed to the movable body 32. A seat plate 33 is supported by a column 30 above the rail 31, and a stopper 34 is pivoted at an appropriate location on the back of the seat plate 33. The tip of a stopper 34 is formed into a barb shape and is attached to the back of the movable body 32. It is arranged at a position close to the rack 35 on which the rack is placed.

Thigh fixation bands 39 are attached to the front portions of both sides of the seat plate 33, waist fixation bands 42 are attached to the rear portions of both sides of the seat plate 33, and chest fixation bands 23 are attached to the center portions of both sides of the backrest portion 3. attached.

The electrical signal obtained from the detector 9 is connected to a display section 40 that processes and displays the electrical signal using a conductive wire 41.

Function: A person to be measured is placed on the chair 4 of the present invention, and the person is made to press the center plane portion of the pressure receiving piece 36 of the detector 9 in the vertical direction to measure muscle strength. When training muscle strength, the above measurement operation is repeated a predetermined number of times.

The backrest part 3 is slid and fixed back and forth according to the patient's body, and the arm 5 is moved depending on the part of the muscle to be measured and the direction of action of flexion or extension of the joint to be measured.
The angle of the rotating portion 13 of the mounting rod 24 and the angle of the rod rotating portion 37 of the mounting rod 24 are set, and the position of the outer fitting frame portion 25 that moves on the arm 5 is determined to match the position of the patient's upper or lower limb. and fix it.

The action of the rotating part 13 shown in FIG. 5 is such that when the push button 38 is pressed and the spline shaft 16 is moved in the direction of arrow a, the spline carved part A and the front member 14 are disengaged, and the base member 12 and the front member are disengaged. 14 is rotatable. In this state, when the angle indicated by the angle scale plate 17 attached to the front member 14 of the rotating part 13 is set to the desired angle and the push button 38 is released, the spline shaft 16 is rotated in the direction of arrow b due to the bias of the spring 19. Moving part 1
The angle of 3 is fixed. The base member 12 of the arm 5 inserted through the attachment part 6 is moved forward or backward as appropriate depending on the size of the body of the person to be measured, the part of the muscle to be measured, etc., and is fixed to the attachment part 6 with the nozzle bolt 21. Further, a mounting rod 24 mounted on the arm 5 is also moved to an appropriate position and fixed with a knob bolt 21.

After the subject gets on the chair 4, the chest fixation band 2 is attached.
3 and the thigh fixing band 39 are fastened to fix the subject to the chair 4.

The pressing force received by the pressure receiving piece 36 of the detector 9 is converted into an electrical signal and displayed on the display section 40.

When training using the device of the present invention, the action of pressing the limb against the detector 9 with a predetermined pressure is repeated a predetermined number of times as in the above-mentioned muscle strength measurement.

Note that although the detector 9 is attached to the arm 5 via the attachment rod 24, the detector 9 may be directly externally attached to the arm 5 in some cases.

Effects of the invention The device of this invention has an arm attached to the chair, a detector fixed to the arm, the output signal of the detector is displayed on the display, and a mounting rod that is externally attached to the arm is this mounting rod. Because the midway joint of the limb can be rotated and fixed, the structure is simple and can be manufactured at low cost.Furthermore, the reproducibility of the fixed position of the limb is good, and the regularly measured values are reliable. Since force can always be detected in the tangential direction to the arc of the arc of flexion and extension of the joint, muscle strength can be measured accurately.

Additionally, because the base end of the backrest is fixed to a moving body that moves back and forth on a rail suspended horizontally below the seat, the position of the backrest can be adjusted according to the physique of the person to be measured. , it is possible to make the person to be measured sit in a chair in a comfortable posture without having to sit in an uncomfortable posture, and measurement and training movements can be performed easily.

Regardless of the length of the thighs, it can be attached to the backrest with the chest fixing band, which prevents errors caused by excess muscle strength measurement due to compensatory movement when measuring upper limb muscle strength, and also allows for a comfortable and comfortable posture without forcing the thigh. It allows the user to sit in a chair in the correct posture, allowing measurement and training movements to be performed accurately and effectively.

In addition, since the arm 5 can be slid and fixed in the vertical or diagonal directions relative to the mounting part 6, the positions of the pivot points of the shoulder joint and knee joint and the position of the rotating part of the arm can be matched in side view. This makes it possible to easily and accurately measure the muscle strength of the lower limbs.

In addition, since the middle part of the arm has a rotating part formed by inserting a spline shaft, the arm can be bent finely to correspond to the measurement site of the muscle of the limb, and the detector can be adjusted to suit the movement of the limb. You can guess. Further, the rotating portion can be easily fixed and released by pressing and releasing the push button. Therefore, accurate measurements are possible with easy operation.

In addition, since the detector is inserted into the mounting rod so that it can be hung and fixed, it is possible to measure the muscle strength of all four limbs with one detector. In the case of lower limb muscle strength measurement, the equipment can be set up by simply replacing the detector from one mounting rod to the other mounting rod on the symmetrical side. That is, it becomes possible to measure the muscle strength of the limbs of the subject with the simple task of replacing one detector, and the setting can be easily performed without moving the position of the subject.

In addition, the lower limb attachment part is provided on the front side of the upper part of the front support, and the arm is slightly protruded to the front central position of the seat plate, eliminating obstacles when getting on and off the chair. In addition, one arm is shared between the left and right lower limbs, eliminating the need to replace the arms, and furthermore, the operation of the rotating part for the right lower limb and the left lower limb are made common, simplifying the operation and saving labor.

[Brief explanation of the drawing]

The accompanying drawings show an embodiment of the present invention, in which FIG. 1 is an overall perspective view, FIG. 2 is a partial perspective view showing the structure of a moving body, and FIG. 3 is a partial sectional view showing the moving body.
FIG. 4 is a partial front view showing the arm, and FIG. 5 is a sectional view of the rotating part. 1... Leg part, 2... Seat part, 3... Backrest part,
4...Chair, 5...Arm, 6...Mounting part, 7...
...Upper limb attachment part, 8...Lower limb attachment part, 9...Detector, 12...Base member, 13...Rotating part, 14
...Front member, 16...Spline shaft, 17...
Angle scale plate, 24...Mounting rod, 25...Outer fitting frame portion, 26...Proximal portion, 27...Distal portion, 28...
Bolt, 29...knob nut, 31...rail,
32...Moving body, 33...Seat plate, 34...Stopper.

Claims (1)

[Scope of utility model registration request] A detector 9 for detecting muscle force is attached via a mounting rod 24 to an arm 5 having a rotating part 13 in the middle,
The arm 5 is fixed to a mounting part 6 attached to the chair 4, and the detector 9 is mounted to the arm 5 via a mounting rod 24 such that the mounting angle can be changed and fixed. includes an external fitting frame portion 25 that fits externally on the arm 5, a proximal portion 26 adjacent to the external fitting frame portion 25, and a portion attached to a portion distal from the proximal portion 26 and rotates with respect to the proximal portion 26. a movable and fixable front part 27;
It consists of a bolt 28 that protrudes from the proximal part 26 and is inserted into and penetrates the distal part 27, and a knob nut 29 that is screwed onto the bolt 28 that protrudes from the distal part 27,
The detector 9 is a chair-type muscle strength measuring and training device which is inserted through a mounting rod 24 so as to be freely hookable.