JPH0330097Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a body stretching machine that stretches the lumbar vertebrae or neck region.

(Prior Art) As a conventional art, there is a structure shown in FIG.

That is, a flat sheet 2 supporting the lower and upper bodies is horizontally arranged and fixed on the upper part of the seat 1 extending in the left-right direction.

A band 3 for wrapping around the chest of the patient A is attached to the right side of the seat 2, and a pulley 4 is rotatably attached to the upper left end of the seat 1.

Further, a belt-shaped tension band 5 is provided, one end of which is connected to the ankle of patient A, and the other end is connected to the pulley 4.
After winding it around, it is made to hang downward on the left outer side of the base 1, and the weight receiving plate 6 is attached to the other end.

There was also a structure in which a weight 7 of a predetermined weight was placed on the weight tray 6 and one end of the tension band 5 was moved to the left to stretch the lumbar vertebrae of the patient (A).

(Problems to be solved by the invention) In the conventional device described above, the weight 7 is placed on the weight tray 6 placed outside the seat 1, and the tension band 5 is moved in the tensioning direction. However, it had the disadvantage that the patient could not operate it independently. In addition, since Patient A's ankles were stretched on the seat 2 fixed to the seat 1, frictional force was generated between the lower body of Patient A and the seat 2, and the stretching function of the lumbar vertebrae was impaired. There was a drawback that it deteriorated.

The object of the present invention is to provide a new body stretching machine that eliminates the above-mentioned drawbacks.

(Means for Solving the Problems) In order to achieve the above object, the present invention has a body stretcher that includes a seat, and a body stretcher fixed and disposed on one end of the seat so that the upper body of the patient is stretched. a front seat on which the patient is placed; a rear seat that is placed on the base and is movable in a direction toward and away from the front seat, on which the patient's lower body is placed; the base and the rear seat; and a drive shaft rotatably disposed on the other end of the seat; and a drive shaft rotatably disposed on the other end of the seat; a lever rotatably attached to the drive shaft and rotated in one direction by a pressing operation by a patient's foot; a pinion fixed to the drive shaft; and the pinion connected to the rear seat side via one end thereof. A rack that moves the rear seat by converting the rotational movement of the pinion into horizontal movement by meshing with the pinion and that can be moved into and out of contact with the pinion, a ratchet wheel that is fixed to the drive shaft, and a ratchet wheel that is attached to the lever. The rear seat is separated from the front seat via the rack by engaging the ratchet wheel and rotating it in one direction, thereby rotating the drive shaft and pinion in one direction only when the patient's foot is pressed. A feed claw is attached to the seat and engages with the ratchet wheel to restrict the return of the ratchet wheel and thus the drive shaft, and the patient can press the ratchet wheel with the patient's foot to engage the ratchet wheel. a detent pawl that allows the ratchet wheel and drive shaft, and thus the rear seat, to return when released; and a first locking means that is attached to the front seat and that secures at least one of the patient's armpits and neck. , a second locking means attached to the rear seat and fixing the patient's waist.

(Function) Place your upper body on the front seat and fix at least one of your armpits and neck to the front seat using the first locking means, and place your lower body on the rear seat and use the second locking means. The lumbar region is appropriately secured to the rear seat by means. In this state, the patient presses the lever with his/her foot. The lever rotates in one direction,
At this time, the feed pawl engages with the ratchet wheel and rotates it in the same direction.

By rotating the ratchet wheel in one direction,
A pinion rotates in one direction via the drive shaft, thereby moving the rear seat away from the front seat via the rack.

At this time, at least one of the patient's armpits and neck is fixed to the front seat by the first locking means, and the lower back is fixed to the rear seat by the second locking means. This causes the neck to become stretched. This provides traction therapy.

The moving position of the rear seat is maintained because the detent pawl engages with the ratchet wheel, thereby restricting rotation of the ratchet wheel in the other direction.

Next, in order to release this, first, the engagement of the return claw with the ratchet wheel is released by a stepping operation with the patient's foot. This allows rotation of the ratchet wheel, drive shaft, and pinion in the other direction, making it possible to move the rear seat toward the front seat and releasing the traction state.

Further, when starting traction treatment, the initial position of the rear seat can be adjusted as appropriate. This is because the rack is attached so that it can move toward and away from the pinion, so the rear seat can be moved in an appropriate direction while the rack is separated from the pinion.
Once located at the desired location, the rack can be engaged with the pinion.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

In the drawings, FIG. 1 is a side view showing an embodiment of the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a side view of essential parts showing the clutch mechanism.

In FIG. 1, 10 is a seat, on which a rectangular rear seat 11 and a rectangular front seat 12 are placed horizontally on the left (front) and right (front) parts. .

The rear seat 11 has rollers 13 on its lower surface.
is rotatably mounted, and this roller 13 is attached to the seat 10.
Rail 1 is extended and fixed in the left-right direction on the left side of the
4, it is supported on the base 10 so as to be movable left and right.

Further, the rear seat 12 is immovably fixed to the right side of the seat base 10 with bolts or the like.

A drive shaft 15 is rotatably attached to the left end of the seat 10 in its width direction, a pinion 16 and a ratchet wheel 17 are fixed in parallel to the drive shaft 15, and the pinion 16 is attached to the rear end of the rear seat 11. It engages with the rack 18 (connecting tool) that protrudes to the left from. The right end of the rack 18 is connected to the rear seat 11 with a pin, and the left end thereof is swingable in the vertical direction, so that the rack 18 can be engaged with the pinion 16 at any position in the left (longitudinal) direction of the rack 18. , the initial position of the rear seat 11 in the left and right direction can be varied.

Further, a gate-shaped lever 19 is erected and swingably connected to the drive shaft 15, and a feed pawl 2 that engages with the ratchet wheel 17 is attached to the side of the lever 19.
0 is attached rotatably. As shown in FIG. 3, this feed pawl 20 engages the teeth of the ratchet wheel 17 to rotate the drive shaft 15 to the left only when the lever 19 rotates to the left. Another detent pawl 21 that engages with 17 is attached to the seat 10 side. As shown in FIG. 3, this detent pawl 21 is rotatably supported by a support pin 22 supported on the base 10, and its left end is connected to the ratchet wheel 1.
It engages with the teeth of No. 7 only when it rotates clockwise, its right end protrudes rightward from the support pin 22, and a footboard 23 is attached to this part.

On both sides of the right end of the rear seat 11, a pair of waist locking devices 24 are fixed as second locking means that have a V-shape in plan view and project upward.
Hold patient A's waist from both sides.

Further, a pair of arm locking devices 25 and a neck locking device 2 are provided on both sides of the left-right intermediate portion and right end portion of the front seat 12.
6 and fixed in a protruding manner. These pair of arm locking tools 25
and the neck locking tool 26 constitute a first locking means. The arm locking tool 25 is formed in a cylindrical shape and clamps the armpit of patient A, and the neck locking tool 26 is arranged in an inverted V-shape in plan view and clamps the neck of patient A from both sides.

Note that the arm locking device 25 and the neck locking device 26 may be made removable from the front seat 12, and one of them may be selectively attached.

Next, the manner of use of the above embodiment will be explained.

First, as shown in FIG. 1, patient A lies on his back with his lower body on the rear seat 11 and his upper body on the front seat 12, and also places the waist restraints 24, arm restraints 25, and neck restraints 26. Attach the patient's waist, armpits, and neck to each.

In this state, the patient pushes the push rod 19a of the lever 19 backward with his or her foot, causing the lever 19 to rotate to the left (backward).

Then, the feed claw 2 attached to the lever 19
0 engages the ratchet wheel 17 and rotates it to the left, the pinion 16 rotates to the left and the rack 18
is sent to the left, and the rear seat 11 is accordingly moved to the left.

Furthermore, when the lever 19 is rotated back to the right, the detent pawl 21 operates and engages the ratchet wheel 17 to prevent it from rotating to the right. This will prevent a return to .

As a result, by increasing the leftward rotation angle and number of times of the lever 19, the rear seat 11
gradually moves to the left, and the lumbar vertebrae of the patient A are gradually pulled through the lumbar locking part 24.

The amount of tension on the lumbar vertebrae and the force thereof increase as the rotation angle and number of rotations of the lever 19 and the pushing force thereof increase.

Also, if you want to release the tension in the lumbar vertebrae,
The foot plate 23 of the stopper claw 21 is pressed downward with the foot to rotate the stopper claw 21 clockwise.

Then, the left end of the stop pawl 21 will separate from the teeth of the ratchet wheel 17, the rear seat 11 will return to the right, and the tension in the lumbar vertebrae will be released.

At this point, if the arm locking device 25 is removed or the arm locking device 25 is released from being held by the armpits, the neck will be mainly pulled.

(Effects of the invention) As detailed above, according to the body stretcher according to the invention, a desired amount of traction treatment can be applied by operating the lever with the patient's foot, and it is also possible to perform the desired amount of traction treatment by operating the lever with the patient's foot. Therefore, desired actions such as stopping traction treatment by disengaging the return claw from the ratchet wheel can be performed entirely by the patient's own operation.

Furthermore, since the track means reduces friction between the rear seat and the seat base, deterioration in traction performance can be prevented.

Further, since the rack is installed so as to be able to move toward and away from the pinion, it is possible to adjust the meshing position between the rack and the pinion, as well as the initial position of the rear seat. This is because it accommodates patients of various sizes.
This is extremely effective.

[Brief explanation of drawings]

FIG. 1 is a side view showing an embodiment of the present invention, FIG. 2 is a plan view thereof, FIG. 3 is a side view of essential parts showing the clutch mechanism, and FIG. 4 is a side view showing a conventional example. 10: Seat, 11: Rear seat, 12: Front seat, 13: Roller, 14: Rail, 15: Drive shaft, 16: Pinion, 17: Ratchet wheel, 18: Rack (coupling tool), 19: Lever ,2
0: Feed claw, 21: Detent claw, 22: Support pin, 23: Step board, 24: Waist stopper, 25: Arm stopper, 26: Neck stopper.

Claims (1)

[Scope of utility model registration request] a seat; a front seat fixed and arranged on one end of the seat, on which the patient's upper body is placed;
A rear seat is disposed on the base and is movable in directions toward and away from the front seat, on which the patient's lower body is placed; a track means for guiding the movement of the rear seat while reducing friction between the two; a drive shaft rotatably disposed on the other end of the seat; A lever that is rotated in one direction by a pressing operation with a foot, a pinion that is fixed to the drive shaft, and a lever that is connected to the rear seat side through one end and meshes with the pinion to cause rotational movement of the pinion. a rack that can be moved in and out of the pinion by converting it into horizontal movement to move the rear seat, a ratchet wheel that is fixed to the drive shaft, and a ratchet wheel that is attached to the lever and that moves the rear seat only when pressed by the patient's foot. a feed pawl that engages with the ratchet wheel to rotate it in one direction, thereby rotating the drive shaft and pinion in one direction, thereby moving the rear seat in a direction away from the front seat via the rack; It is attached to the pedestal and engages with the ratchet wheel to restrict the return of the ratchet wheel and hence the drive shaft, and is released from engagement with the ratchet wheel by the patient's stepping operation with the patient's foot. a detent pawl that allows the drive shaft and thus the rear seat to return; a first locking means that is attached to the front seat and that fixes at least one of the patient's armpits and neck; a second locking means for fixing the waist;
A body stretching machine characterized by comprising: