JPH033295Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a device for lifting and transporting a stretcher with the patient lying supine, which is used when bathing a person with motor dysfunction (hereinafter referred to as a patient).

Conventional technology As a conventionally known technology, there is Utility Model Application No. 55-37613, and the technology disclosed in this publication is that a support is erected on a base with a vehicle, and a stretcher is supported on this support so that it can be moved vertically and fixedly. The member is supported in a cantilever manner. Furthermore, the stretcher support member is fixed to a female thread threaded onto a threaded shaft that is rotated by the handle.

Problems to be Solved by the Invention In the technology of Utility Model Application No. 55-37613 shown as the prior art, when raising and lowering the stretcher support member, a long screw shaft is rotated by a handle via a pulley and a gear. , since there is a lot of frictional resistance between the female screw that is loaded and the rotating screw shaft,
A disadvantage is that a great deal of effort must be expended to raise the stretcher support. Furthermore, if a reduction ratio is set so that the caregiver can turn the handle with an appropriate amount of force, the number of turns of the handle increases and it takes a lot of time to move the stretcher support member to the desired position. There is a drawback.

Means for Solving the Problems The present invention solves the problems of the conventional technology by reducing mechanical losses such as frictional resistance and quickly raising and lowering the stretcher by turning the handle with an appropriate amount of force. The purpose of the present invention is to provide a manually elevating stretcher transport vehicle.

That is, in the present invention, the base end of an arm 5 on which a stretcher 4 is mounted is slidably attached to a support 1 erected on a movable leg frame 3, and a chain 6 is attached at an appropriate position on one side of the support 1.
A manual meshing machine 7 is provided for feeding out and drawing in the support column 1.
A top sprocket 8 is protruded from the top of the machine, and the middle part of the chain 6 fed upward from the manual meshing machine 7 is wrapped around the top sprocket 8, and the tip of the chain 6 is fixed to the arm 5. It is a type stretcher transport vehicle, and the manual meshing machine 7 has a chain 6.
A sprocket 12 that meshes with the sprocket 12 is connected via a large gear 14 and a small gear 17 to a rotating shaft 16 supported at two points by the plate 11, and the rotating shaft 16 has a check gear 18 that rotates in one direction. Brake plate 19 and handle 1
5 hubs 20 are sequentially fitted onto the rotating shaft 16.
and the hub 20 are screwed together with a right-hand screw 26, and when the chain 6 is fed out above the manual meshing machine 7, the handle 15
When the rotation shaft 16 rotates faster in the same direction, the hub 2
0 presses the brake plate 19 against the check gear 18.

Embodiment An embodiment of the present invention will be described in detail with reference to the attached FIGS. 1 to 5.

A column 1 shown in FIG. 1 is erected approximately at the center of the upper surface of a movable U-shaped leg frame 3 with casters 2 provided on the back side, and the column 1 has an L-shaped arm on which a stretcher 4 is mounted. The base end of No. 5 is attached so as to be movable up and down.

A manual meshing machine 7 for feeding and feeding the chain 6 is provided at an appropriate position on one side of the pillar 1,
A top sprocket 8 around which a chain 6 is wound is protruded from the top of the support 1.

A slidable sliding body 10 having a plurality of rollers 9 at its edges is fitted inside the support 1,
A base end of the arm 5 is attached to the sliding body 10,
Furthermore, the tip of a chain 6 hanging down from the top sprocket 8 is fixed to the sliding body 10.

In the manual meshing machine 7 shown in FIG. 2, a sprocket 12 that meshes a chain 6 with two parallel plates 11 is fixed to a horizontal shaft 13, and a large gear 14 is coaxially adjacent to the sprocket 12. It is fixed integrally.

Furthermore, a rotating shaft 16 that is rotated by a handle 15 is mounted horizontally on the plate body 11, and a large gear 1 is mounted on the rotating shaft 16.
A small gear 17 that meshes with 4 is fixed. Furthermore, a non-return gear 18 is first fitted onto the portion of the rotating shaft 16 that protrudes from the plate body 11 so as to be rotatable with respect to the rotating shaft 16, and then a brake plate 19 is rotatably rotatable with respect to the rotating shaft 16. Further, the hub 20 of the handle 15 is screwed onto the rotating shaft 16 with a right-handed screw 26.

Furthermore, a coil spring 21 is fitted into the rotating shaft 16 so that the hub 20 normally presses the brake plate 19 lightly against the check gear 18, and engages the rotating shaft 16 and the handle 15 with some play. One end of the coil spring 21 is hooked to the hub 20, and the other end is hooked to a lid 22 fixed to the end of the rotation shaft 16.

A check gear 1 is attached to a shaft 27 protruding from the plate body 11.
A non-return claw 23 that prevents only one-way rotation of the non-return claw 23 is provided, and the claw end of the non-return claw 23 is always connected to the non-return gear 18.
A spring 28 is applied to bring it into contact.

The non-return claw 23 is rotatably fitted onto the shaft 27, and the distance between the shaft 27 and the rotation shaft 16 is the sum of the radius of the non-return gear 18 and the rotation radius of the non-return claw 23. A shaft 27 is provided on the plate body 11 and is shorter than the length of the shaft 27 .

A suitable weight 24 is hooked to the base end of the chain 6 hanging from the manual meshing machine 7 shown in FIG.

Function The patient who is about to take a bath is placed on the stretcher 4 of the device of the present invention.
The patient lies on his or her back, rotates the handle 15 to raise the arm 5 and the stretcher 4, moves the device of the present invention, and positions the stretcher 4 above the bathtub 25. Next, the handle 15 is rotated in the opposite direction, and the stretcher 4 and the patient are immersed in warm water for bathing. When taking a bath, the user turns the handle 15 to raise the stretcher 4, and then moves the device of the present invention to a desired location.

When raising the stretcher 4, the caregiver turns the handle 15 to the right, and the hub 20 follows the right-hand thread and presses the brake plate 19 against the check gear 18. The handle 15 rotates the rotation shaft 16 with the check gear 18 fixed to the rotation shaft 16, and the rotation of the rotation shaft 16 is transmitted from the small gear 17 to the large gear 14 and then to the sprocket 12. . As the sprocket 12 rotates, the engaged chain 6 is pulled down, and the sliding body 10 and arm 5 suspended from the tip of the chain 6 are raised.

Handle 15 while raising arm 5
Even if the rotation of the hub 20 and brake plate 1 is stopped,
9 and the non-return gear 18 are in a pressed fixed state by a right-handed screw 26 provided on the inner wall of the hub 20 being screwed into the rotating shaft 16 that is rotated to the left by gravity of the stretcher 4, etc. The rotation of the non-return gear 18 is prevented by the non-return claw 23 and the non-return gear 18 is in a non-rotating state, so the rotation shaft 16 is in a rotation inhibited state, and the sprocket 12 does not rotate, so that it is not slid. The moving object 10 does not descend and is maintained at the position where the handle 15 stops rotating.

The check claw 23 shown in FIG. 3 is biased by a spring 28 to constantly contact the check gear 18 and serves to prevent the check gear 18 from rotating to the left.

When lowering the stretcher 4, the caregiver turns the handle 15 to the left, and the hub 20 retreats along with the right-hand screw 26, reducing the force pressing the brake plate 19 against the check gear 18. Then, the restraining force on the hub 20 disappears, and the weight of the arm 5, the patient, etc. pulls the chain 6 that engages the sprocket 12 upward, and the sprocket 12, large gear 14, and small gear 17
and the rotation shaft 16 rotates. This rotation draws the hub 20 toward the non-return gear 18, and the rotation of the rotating shaft 16 is suppressed by the friction between the brake plate 19 and the non-return gear 18. At this time, the check gear 18 is
The rotational force in the left direction is received via the hub 20, but the check claw 23 is supported by the teeth of the check gear 18,
The check gear 18 is prevented from rotating to the left and does not rotate. When the handle 15 is continuously turned to the left, the hub 20 and the brake plate 1 are screwed together by the right-hand screw 26.
9. Since the pressing force of the non-return gear 18 decreases, the rotating shaft 16 rotates in accordance with the rotation of the handle 15 due to the balance between the decrease in the frictional force of the brake plate 19 and the non-return gear 18. .

If the left rotation of the handle 15 is stopped while the arm 5 is being lowered, the handle 15 will be rotated in the same manner as when the right rotation of the handle 15 is stopped while the arm 5 is being raised. At the same time as the rotation is stopped, the downward movement of the arm 5 is stopped and the arm 5 is maintained at the stopped position.

Effects of the invention The manual meshing machine attached to the support of the device of the invention consists of a rotating shaft, a spur gear, a sprocket, a brake, a check gear, a handle, etc. built into a plate, so it is possible to reduce the mechanical resistance of friction. Loss can be largely eliminated and the stretcher can be raised and lowered efficiently.

In addition, as mentioned above, the lifting and lowering operation can be performed efficiently, so the stretcher can be moved to the desired position in a short time with appropriate force, greatly improving the efficiency of bathing work, and raising and lowering the stretcher. The labor required for the caregiver to operate the device was also reduced.

[Brief explanation of the drawing]

The attached drawings show an embodiment of the present invention, in which Fig. 1 is an overall perspective view, Fig. 2 is a cross-sectional view of the manual meshing machine, Fig. 3 is a partial cross-sectional view of the strut, and Fig. 4 is a cross-sectional view of the strut. A plan view sectional view and FIG. 5 show a side sectional view showing the state of use. 1... Strut, 3... Leg frame, 4... Stretcher, 5...
Arm, 6... Chain, 7... Manual meshing machine, 8...
...Top sprocket, 11...Plate, 14...Large gear, 15...Handle, 16...Rotation shaft, 17
...Small gear, 18...Return gear, 19...Brake plate, 20...Hub, 26...Right-hand thread.

Claims (1)

[Scope of utility model registration request] A stretcher 4 is mounted on a support 1 erected on a movable leg frame 3.
The base end of the arm 5 on which the chain 6 is mounted is slidably attached, and a manual meshing machine 7 for feeding out and retracting the chain 6 is provided at an appropriate position on one side of the column 1, and a top sprocket 8 protrudes from the top of the column 1. This is a manual elevating stretcher transport vehicle, in which the middle part of the chain 6 that is provided and fed upward from the manual meshing machine 7 is wound around the top sprocket 8, and the tip of the chain 6 is fixed to the arm 5. The manual meshing machine 7 has a sprocket 12 that meshes the chain 6 with a large gear 14 and a small gear 17.
A rotation shaft 16 supported at two points by the plate 11 via
The rotating shaft 16 includes a check gear 18 that rotates only in one direction, a brake plate 19, and a handle 1.
5 hubs 20 are sequentially fitted onto the rotating shaft 16.
and the hub 20 are screwed together with a right-hand screw 26, the sprocket 12 and the large gear 14 are both externally fitted on the horizontal shaft 13 and fixed to each other, and this large gear 14 is fixed to the small sprocket that is externally fitted and fixed on the rotating shaft 16. The non-return gear 18 is engaged with a gear 17, and the non-return gear 18 is supported by a non-return claw 23 provided on the plate body 11 and is prevented from rotating in the other direction.
Due to the gravity applied to the stretcher 4, the chain 6 is moved to the manual meshing machine 7.
Handle 15 to be rotated to the left when extended upwards
When the rotation shaft 16 rotates faster in the same direction, the hub 2
0 presses a brake plate 19 against a check gear 18.