JPH027557Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a device for transporting a physically handicapped person who has difficulty walking (hereinafter referred to as a patient) into a walking bathtub.

Conventional technology A conventionally known technology is Utility Model Application No. 57-134039, in which a hydraulic cylinder is erected in a casing attached to the outer surface of the side wall of the bathtub, and an arm is connected to the upper end of the hydraulic cylinder. Some have a pedestal.

Problems to be solved by the invention In Utility Model Application No. 57-134039 as a conventional technique, the height of the seat surface of the pedestal is set as the lowest position at the height of the seat of the wheelchair or the height of the top surface of the stretcher.
The pedestal moves up and down from this height to the highest position where all of the pedestal components are slightly higher than the upper edge of the bathtub. Therefore, the travel distance of the hydraulic cylinder, the sturdiness of the support mechanism of the guide tube, and other configurations to stably support the patient on the pedestal were taken into consideration in the lifting distance of the pedestal and the height of the highest position of the pedestal. A hydraulic supply system with a capacity suitable for the working stroke of the hydraulic cylinder is required. With this type of device, the height of the highest point of the device is limited by the height of the ceiling of the room, which in turn limits the height of the upper edge of the bathtub, and the bathtub cannot fully function as a walking bath due to insufficient water depth. There is. Minimizing the distance of vertical movement as much as possible reduces the cost and weight of the equipment.
Such a device is desired since it is advantageous in terms of safety and the like.

Means for Solving the Problems The object of the present invention is to reduce the lifting distance of a lifter for transporting a chair, and to provide a bathing lifter that allows for satisfactory walking training due to a sufficient depth of water.

That is, in the present invention, one end of a hanging arm 4 is rotatably attached to the upper end of a telescopic column 6 erected at one end of a bathtub 1, and a chair 5 is provided on the outside of the other end of the hanging arm 4. , a roller receiving arm 8 rotatably attached to the midway of the upright support 6 and extending horizontally.
A rack 10 is vertically attached to the vertical end surface of the roller receiving arm 8, and a pinion 13 that meshes with the rack 10 is attached to the inside of the other end of the suspension arm 4. The bathing lifter is characterized in that the pinion 13 and the lower leg receiving part 20 of the chair 5 are connected by a connecting tool 21.

Further, teeth 24 are provided in double rows on the upper part of the front surface of the rack 10 mounted in the vertical direction, and the teeth 24 are protruded and biased by a spring 27 at a position below the lowest ridge 25 in the row of teeth on the lower part. A guide protrusion 26 is implanted therein.

Embodiments Examples of the present invention will be described in detail with reference to the accompanying drawings.

An elevating lift 2 is erected on one side wall of a rectangular bathtub 1 in which walking training is performed, and a chair 5 on which a patient sits is attached to the tip of a hanging arm 4 extending from the upper end of the elevating lift 2.

The elevating lift 2 includes a column 6 that extends and contracts in the vertical direction using an appropriate member such as a hydraulic cylinder, screw shaft, or chain (not shown), and an inverted L-shaped hanging arm 4 that is rotatable at the upper end of the column 6. The tip of the horizontal side is mounted, and an electrically or hydraulically operated rotation mechanism 7 for rotating the hanging arm 4 relative to the pillar 6 is mounted on the upper end of the pillar 6.

A roller receiving arm 8 is provided on the slightly upper surface of the casing 3 and is rotatable horizontally relative to the support 6, and a rack 10 is vertically attached to an end surface 9 formed at the tip of the roller receiving arm 8. Ru. The end face 9
At both ends of the suspension arm 4, there are guide rollers 11 that contact the suspension arm 4 at positions sandwiching both sides of the vertical sides of the suspension arm 4.
is provided protrudingly.

At the lower end of the surface of the hanging arm 4 facing the support column 6 shown in FIG. A roller shaft 15 is inserted through a pinion 13 that meshes with the rack 10 in between, and a sprocket 14 that is integrally fixed to the pinion 13.

A chair 5 provided on the hanging arm 4 is positioned on the opposite side from the support 6 with the hanging arm 4 at its back. A backrest part 16 is attached to the hanging arm 4, and a seat part 18 is provided on a protruding side part 17 formed by bending the lower end of the hanging arm 4 and protruding in the horizontal direction. The lower leg receiving portion 20 is attached in the hanging direction via the hinge 19. A spring 3 is applied between an appropriate location on the lower surface of the lower leg receiving portion 20 and the protruding side portion 17.

The rotation of the pinion 13 is transmitted to the lower leg receiving portion 20 by the coupling member 21 . That is, the rotation of the pinion 13 is achieved by a sprocket 14 that rotates integrally with the pinion 13, a driven sprocket 22 that is fixed to the lower leg receiving portion 20 and rotates at the same time, and a chain 2 that is connected to the driven sprocket 22 and the sprocket 14.
The signal is transmitted to the lower leg receiving portion 20 by a connecting member 21 consisting of 3 and 3. A plurality of teeth 24 are carved in a row on the vertically arranged rack 10, and a guide protrusion 2 is provided below the lowest peak 25 at a position one pitch apart.
6 is located at the same height as the lowest mountain 25. The guide protrusion 26 is biased by a spring 27 in the projecting direction.

In FIG. 1, reference numeral 28 is a handrail for the patient to grasp during walking training, 29 is a nozzle that spouts hot water, and 30 is a handrail adjuster 30 that adjusts the mutual distance between the pair of main rails 28.

Function: A patient is seated on the chair 5 of this device, the support column 6 is extended, and the patient is lifted up together with the lifting arm 4. When the strut 6 reaches the uppermost position, the extension of the strut 6 is stopped, the rotation mechanism 7 is automatically activated, the hanging arm 4 is rotated, and the patient is moved above the bathtub 1. When the chair 5 reaches a predetermined position above the bathtub 1, the support column 6 automatically retracts and lowers the hanging arm 4 to immerse the patient in the bathtub 1.

When the chair 5 is at the lowest position on the side of the bathtub 1, the rollers 12 are in contact with the side wall of the bathtub 1. As the hanging arm 4 rises, the roller 12 contacts the side wall of the bathtub 1 and rotates. When the roller 12 passes the upper end of the side wall of the bathtub 1, it moves to the end face 9 of the roller receiving arm 8, and further rotates in contact with the support column 6 until it reaches the uppermost position. A pinion 13 existing between two rollers 12 of the suspension arm 4 contacts and meshes with the rack 10 at a position slightly before the column 6 reaches its uppermost position. When engaged, the pinion 13 rotates, and this rotation is sequentially transmitted to the sprocket 14, chain 23, and driven sprocket 22. When the driven sprocket 22 rotates, the lower leg receiver 20 rotates integrally with the driven sprocket 22, and the lower leg receiver 2, which until now has been in a fixed position rotated slightly more than in the hanging direction, is rotated.
0 rotates to the horizontal position and pushes the patient's lower leg up to the horizontal position.

When the column 6 extends to the uppermost position, the rotation mechanism 7 is automatically operated and the hanging arm 4 rotates 90 degrees about the column 6. As the hanging arm 4 rotates, the hanging arm 4 pushes the guide roller 11 and the roller receiving arm 8 also rotates 90 degrees. When the hanging arm 4 rotates, the chair 5 passes slightly above the upper edge of the bathtub 1 and moves above the bathtub 1. At this time, the lower leg support 20 is in a horizontal position, so the support column 6 is extended less than in the conventional device. The chair 5 rotates and passes over the upper edge of the bathtub 1 at a height lower than the conventional one by shortening the distance by the length of the lower leg.

When the chair 5 is positioned on the upper surface of the bathtub 1, when the hanging arm 4 descends, the pinion 13 that engages with the rack 10 rotates in the opposite direction to that described above, and the lower leg receiver 20 rotates from the horizontal position to the hanging position. move. As the lower leg receiver 20 rotates, the patient also changes his lower legs from the extended position to the flexed position.

When taking a bath, when lifting the chair 5 from the bathtub 1 and raising the hanging arm 4 to the highest position, the lower leg receiver 20 rotates to the horizontal position, and after rotating the chair 5 to the side of the bathtub 1, the hanging arm 4 When descending, the lower leg receiver 20 rotates to a vertical position.

To describe the situation when the pinion 13 starts to mesh with the rack 10, when the pinion 13 approaches the rack 10, first the first peak 31 of the pinion 13
collides with the guide protrusion 26, and at that moment the guide protrusion 26 retreats into the rack 10 to absorb the impact and at the same time slightly rotates the pinion 13 so that the guide protrusion 26 fits into the first valley 32 of the pinion 13. The second peak 33 of the pinion 13 fits between the guide protrusion 26 and the lowest peak 25, and the lowest peak 25 fits into the second valley 34 and meshes with it.

The guide protrusion 26 ensures the engagement between the latch 10 and the pinion 13, and at the same time the teeth 24 of the rack 13.
It has the function of

The guide protrusion 26 of the present invention allows the pinion 13 to mesh with a well-known rack not provided with the guide protrusion 26.
The top of the first peak 31 that the pinion 13 comes into contact with collides with the top of the peak at the farthest position of the rack, and the peaks of the teeth 24 of both the rack and pinion 13 run one after another, and both of these teeth 24 are This is to prevent damage. Further, the guide protrusion 26 prevents the impact on the hanging arm 4 that occurs at the moment when the peaks that have climbed on each other are shifted from each other and fall into a valley.

Effects of the invention When the hanging arm reaches its highest point, the rack of the roller receiving arm engages with the pinion of the hanging arm, rotating the pinion, and the rotation of the pinion causes the lower leg receiving part of the chair to hang down through the connector. Since it is configured to rotate from a position to a horizontal position, the highest position of the support can be lowered by the length of the member supporting the lower leg, and compared to conventional devices, the present invention can be used even in rooms with low ceilings. It became possible to use a lifter, and the conditions for installation were relaxed on the facility side.

Furthermore, the height at which the patient can be lifted can be lowered than before, making it possible to avoid causing anxiety to emergency patients. Furthermore, since the chair is rotated at a low position, the device can be operated stably, and furthermore, since the chair is rotated at a low position, it is advantageous in terms of the strength of the support column, casing, etc.

In addition, the lower leg receiver automatically rotates from the hanging position to the horizontal position or from the horizontal position to the hanging position as the hanging arm moves up and down.
It is convenient because the caregiver does not have to touch the lower leg receiver each time to operate it, and it is also safe because the lower leg receiver does not collide with the edge of the bathtub due to insufficient operation or forgetting to operate the lower leg receiver. It became something.

In addition, since a guide protrusion is provided on the rack of the roller receiving arm, the pinion meshes easily and reliably, allowing the lower leg receiving section to operate reliably.Moreover, the structure is simple and there is no damage to the pinion or rack. It was also advantageous in terms of maintenance.

[Brief explanation of the drawing]

The attached drawings show an embodiment of the present invention.
Figure 1 is a perspective view of the device of the present invention attached to a bathtub, Figure 2 is a diagram showing the rack and pinion, Figure 3 is a diagram showing how the rack is attached to the roller receiving arm, and Figure 4 is the back of the hanging arm. FIG. 5 is a sectional view of the lower end portion of the hanging arm, and FIG. 6 is a partial view of the hinge. 4...hanging arm, 5...chair, 6...post,
8...Roller receiving arm, 10...Rack, 1
3... Pinion, 20... Lower leg receiver, 21...
Connector, 25...lowest mountain, 26...guide projection, 27...spring.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) One end of a hanging arm 4 is rotatably attached to the upper end of an extensible column 6 erected at one end of the bathtub 1, and the outer side of the other end of the hanging arm 4 is A chair 5 is provided on the support 6, and the tip of a roller receiving arm 8, which is rotatably attached to a midway part of the upright pillar 6 and extends horizontally, comes into sliding contact with the hanging arm 4. A rack 10 is vertically attached to the vertical end surface of the chair 5, and a pinion 13 that meshes with the rack 10 is provided on the inside of the other end of the hanging arm 4. A bathing lifter characterized in that it is connected by a connecting tool 21. (2) A plurality of teeth 24 are arranged in the upper part of the front face of the rack 10 mounted in the vertical direction, and the teeth 24 are protruded and biased by a spring 27 in the lower part to a position below the lowest crest 25 in the row of teeth. A bathing lifter according to claim 1, characterized in that a guide protrusion 26 is embedded therein.