JPH0595532U - Handrails for bath lifts - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a handrail for a bath lift that does not inadvertently rotate upward or downward even when subjected to buoyancy or when force is applied from a bather or the like. [Structure] The handrails (5) provided on both the left and right sides of the chair have a vertical stopper mechanism (28) for holding the handrail in a horizontal state and restricting the vertical rotation thereof, and a rotation of the handrail in a twisting direction. Twisting direction stopper mechanism (2
9) and are attached in relation to each other so that they can be locked at the same time.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a handrail in a bath lift used for bathing a physically handicapped person, for example.

[0002]

[Prior Art]

 FIG. 4 shows an example of a conventionally used bath lift. In this bathing lift, an elevating cylinder (support) 1 is erected on the floor of the bathroom, and a base end portion of a supporting arm 2 is provided on the elevating cylinder 1 so as to be vertically movable and horizontally rotatable. The chair 3 for supporting the bather in a seated state is rotatably supported on the tip of the support arm 2 and has a basic structure.

Then, the chair 3 is positioned at the elevated position via the lifting cylinder 1 and is swung in a predetermined direction to face the opposite side to the bathtub. At this position, the bather is placed on the upper portion of the chair 3. Then, the support arm 2 is swiveled to align the chair 3 and the bather sitting on the chair 3 with the bath, and then the lifting cylinder 1 is operated to lower the chair 3 to the lowered position. As a result, the bather can be brought into the bathtub and put in a bathing state.

[0006] Here, a substantially L-shaped handrail 5 is provided on the left and right sides of the backrest 3a of the chair of the bathing lift 1, and the base end of the handrail 5 is rotatable about a pin 6 in the vertical direction and its axis line. 5a is disposed so as to be rotatable in the torsional direction about 5a. The handrail 5 is provided for stabilizing the body of the bather by holding the handrail when taking a bath or turning a chair.

[0005]

[Problems to be solved by the device]

 In the above-mentioned handrail of the conventional bathing lift, when the handrail 5 is placed in a horizontal state, a stopper for restricting the downward movement of the handrail is provided, and the handrail 5 moves upward. It was a structure that could be freely rotated.

Therefore, when a bather holds the handrail and enters the bathtub, the handrail 5 rotates upward due to buoyancy, or the lifting cylinder 1 is activated to move the chair 3 When raising and lowering the bath, the bather may rush to pull up the handrail 5, but in that case the handrail 5 will rotate upwards as it is, which has the drawback of giving the bather a great sense of insecurity. It was

The present invention has been made in view of the above circumstances, and provides a handrail in a bath lift that does not inadvertently rotate upward or downward even when subjected to buoyancy or when force is applied by a bather or the like. The purpose is to provide.

[0008]

[Means for Solving the Problems]

 In order to achieve such an object, in the device according to claim 1, a chair that supports a bather in a seated state is supported by a pillar that stands upright in a bathroom so that the chair can be raised and lowered and swiveled. The handrail has its base end rotatably supported in the vertical direction, and the handrail is provided with a vertical stopper mechanism for holding the handrail in a horizontal state and restricting rotation in both up and down directions. Characterize.

According to the second aspect of the invention, a chair for supporting the bather in a seated state is supported so as to be able to move up and down and turn freely, and the handrails on the left and right sides of the chair rotate their base end portions in the vertical direction. A vertical stopper mechanism that is movable and rotatable in the torsion direction about its axis, holds the handrail horizontally and restricts its vertical rotation, and a handrail twist. It is characterized in that a twisting direction stopper mechanism for restricting rotation in a direction is attached in association with each other so that they can be locked at the same time.

[0010]

[Action]

 Since the handrail is equipped with a vertical stopper mechanism that restricts vertical and vertical rotation on both sides, when the handrail is in a horizontal position, this vertical stopper mechanism acts to restrict the rotation of the handrail. Therefore, even when a force is applied to the handrail by a bather or the like, the handrail does not rotate carelessly.

[0011]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. In the following figures, the same components as those shown in the conventional example are designated by the same reference numerals to simplify the description. First Embodiment FIG. 1 is a sectional view of a handrail mounting portion of a bathing lift according to a first embodiment of the present invention, and FIG. 2 is an exploded perspective view of the handrail mounting portion. The handrails are provided on the left and right sides of the backrest of the chair, but only one of them is shown here and is omitted.

In FIG. 1, reference numeral 10 is a rod fixedly provided on the back portion of the chair so as to extend in the horizontal direction, and one end of an L-shaped tubular bracket 11 is rotatable at the end portion of the rod 10. Is fitted on. Here, a peripheral groove 12 is formed near the end of the bracket 11 with a predetermined length, while a bolt 13 is attached to the end of the rod 10 with its head protruding. By fitting the portion into the circumferential groove 12, the L-shaped bracket 11 is rotatable relative to the rod 10 within a predetermined range in which the bolt 13 abuts on the end of the circumferential groove 12. ..

The base end of the handrail 5 is inserted into the other end of the bracket 11. The base end portion of the handrail 5 is formed so as to be gradually tapered toward the tip, and a small diameter portion 15, a medium diameter portion 16 and a large diameter portion 17 are formed in this order from the tip end side. They are inserted into the other end of the bracket 11.

When the handrail 5 integrally rotates with the bracket 11 relative to the rod 10 in the X direction in the figure and reaches the vertical rotation limit position, the small-diameter portion 15 of the handrail 5 has the above-mentioned rod. It is fitted into the holes 18a and 18b formed in the base plate, and thereby restricts the handrail 5 and the bracket 11 from rotating in the X direction. Therefore, the diameter of the small diameter portion 15 is set to be slightly smaller than the diameter of the holes 18a and 18b of the rod 10. The positions of the holes 18a and 18b are formed in the upper part and the side part of the rod 10 corresponding to the positions of the ends of the circumferential groove 12.

A collar 20 is fitted around the middle diameter portion 16 of the handrail 5, and a spring pin 21 penetrates the collar 20 and the middle diameter portion 16 of the handrail 5 from the outer peripheral side of the collar 20, respectively. It is inserted so as to do. For this reason, the collar 20 is restricted from rotating relative to the handrail 5 and from moving in the axial direction.

A bolt 22 is screwed onto the outer circumference of the middle diameter portion 16, and a protruding head portion of the bolt 22 penetrates a hole 20 a formed in the collar 20 and is provided on the outer bracket 11. The peripheral groove 23 is fitted. The circumferential groove 23 is formed with an opening angle of approximately 90 degrees, whereby rotation of the handrail 5 in the twisting direction relative to the bracket 11 is restricted within a predetermined range. Further, a locking recess 23a for locking the head of the bolt 22 is formed at one end of the circumferential groove 23. When the bolt 22 is fitted into the recess 23a, the handrail 5 is twisted in the twisting direction. Rotation is restricted.

On the other hand, a ring 24 is fixedly attached to the inner circumference on the other end side of the bracket 11 with bolts 25, 25, and the ring 24 is loosely fitted on the outer circumference of the large diameter portion 17 of the handrail 5. A compression spring 26 is interposed between the ring 24 and the collar 20, so that the handrail 5 is constantly urged rightward in FIG. 1 with respect to the bracket 11.

Here, the hole 18 b of the rod, the small-diameter portion 15 of the handrail 5, and the spring 26 hold the handrail 5 in a horizontal state and regulate the vertical movement of the vertical stopper mechanism 28. The recess 23a formed at the end of the circumferential groove 23 of the bracket 11, the bolt 22 screwed to the handrail 5, and the spring 26 are used in the twisting direction to regulate the rotation of the handrail 5 in the twisting direction. The stopper mechanism 29 is configured.

Next, the operation of the handrail in the bathing lift having the above structure will be described. First, to put a bather on the chair of this bath lift, either the left or right handrail 5 should be upright, and the empty space at that time should be used to move the bather to the side and sit on the chair 3. Let FIG. 1 shows a state in which both the vertical stopper mechanism 28 and the twisting direction stopper mechanism 29 are locked. In order to erect the handrail 5 from this state, both mechanisms 28, 29 are locked as shown below. unlock.

That is, the handrail 5 is pulled to the left in FIG. 1 against the biasing force of the spring 26, and the small diameter portion 15 at the tip of the handrail 5 is pulled out from the hole 18 b of the rod 10. As a result, the vertical stopper mechanism 28 is unlocked, and the handrail 5 and the bracket 11 can be rotated in the vertical direction with respect to the rod 10.

On the other hand, when the handrail 5 is pulled leftward in FIG. 1 as described above, the bolt 22 screwed onto the handrail 5 also moves leftward integrally with the handrail 5 and the peripheral groove 2 of the bracket 11 is moved. 3 from the lock recess 23a. Therefore, the engagement between the bolt 22 and the lock recess 23a is released. Therefore, after that, rotation in the twisting direction around the axis of the handrail 5 becomes free.

In this state, the handrail 5 is rotated vertically upward while being pulled against the biasing force of the spring 26, and when the handrail 5 reaches the upright state, the pulling force on the handrail 5 is released. Then, the handrail 5 is pressed by the spring 26 and descends. Here, when the handrail 5 is rotated to the upper rotation limit position, the small diameter portion 15 at the tip of the handrail 5 faces the hole 18a of the rod 10, and when the handrail 5 moves downward as described above, The small-diameter portion 15 at the tip is fitted into the hole 18a on the upper side of the rod 10. As a result, the handrail 5 is locked in the standing position. At this time, the handrail 5 can freely rotate in the twisting direction.

In this state, the bather is moved to the side and placed on the chair 3. Then, carry out the same operation as above to bring the handrail 5 into a horizontal state again and lock it. At this time, since the bolts 22 are fitted into the locking recesses 23a of the circumferential groove 23 of the bracket 11, the handrail 5 can be also locked in the twisting direction.

When bathing is completed and the bather is pulled out from the lift, the same operation as described above is repeated to release the lock by the vertical stopper mechanism and the twisting direction stopper mechanism so that the handrail 5 stands up. Pull out the bather from chair 3.

Second Embodiment FIG. 3 shows a second embodiment of the present invention. The feature of this embodiment is that the vertical stop mechanism 28 is independently provided. The torsion stopper mechanism 29 is not provided in this embodiment.

To describe the vertical stopper mechanism 28 of this embodiment, a tubular portion 30 is integrally formed with the bracket 11 on the outer peripheral portion of the bracket 11 opposite to the handrail 5, and the tubular portion 30 has A handle 32 is provided slidably in the axial direction so that the tip thereof penetrates a hole 33 provided in the bracket 11 and projects inward of the bracket 11. A bottomed tubular lid member 34 is screwed onto the outer periphery of the tubular portion 30, and a hole 35 through which the handle 32 is inserted is formed in the center of the lid member 34. A spring 36 is interposed between the lid member 34 and the collar portion 32a of the handle 32, and the spring 32 constantly urges the handle 32 to the left in the drawing.

On the other hand, two holes 37 are formed at a predetermined position on the outer periphery of the rod 10 at a predetermined opening angle, and the tip of the handle 32 is fitted into the hole 37.

In the handrail 5 having the above structure, the handle 32 is pulled rightward in the drawing against the spring 36, and the tip end thereof is pulled out from the hole 37 of the rod 10. Then, when the handrail 5 is vertically rotated and the pulling force of the handle is released when the handrail 5 reaches a predetermined position, the handle 32 is pushed and moved to the left by the urging force of the spring 36, and its tip is brought into the hole of the rod. Insert. The lock can be released and re-locked by the above operation.

[0029]

[Effect of the device]

 As described above, according to the first aspect of the invention, since the handrail is provided with the vertical stopper mechanism for restricting the vertical and vertical rotations, the vertical stopper mechanism is provided when the handrail is in the horizontal state. As a result, the rotation of the handrail is restricted, and even if the bather or the like exerts a force on the handrail or buoyancy is exerted, the handrail does not rotate carelessly and the bather You can take a bath with confidence.

According to the second aspect of the present invention, the handrail has a vertical stopper mechanism for holding the handrail in a horizontal state and restricting the vertical rotation of the handrail, and restricting rotation of the handrail in the twisting direction. In addition to the above effects, it is possible to lock and unlock both mechanisms with one operation, because the twisting direction stopper mechanism is attached to each other so that they can be locked at the same time. Produce the effect.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an attachment portion of a handrail in a bathing lift according to a first embodiment of the present invention.

FIG. 2 is an exploded perspective view of a mounting portion of the handrail.

FIG. 3 is a sectional view of a handrail mounting portion of a bath lift according to a second embodiment of the present invention.

FIG. 4 is a side view showing an example of a conventional bathing lift.

[Explanation of symbols]

 1 ... Elevating cylinder (support) 3 ... Chair 5 ... Handrail 11 ... Bracket 20 ... Collar 28 ... Vertical stopper mechanism 29 ... Twisting stopper mechanism

Claims (2)

[Scope of utility model registration request] 1. A chair for supporting a bather in a seated state is movably supported by an upright column in a bathroom, and the handrails on the left and right sides of the chair vertically extend their base ends. A handrail for a bathing lift, which is rotatably supported and is provided with a vertical stopper mechanism for holding the handrail in a horizontal state and restricting rotation in both up and down directions. 2. A chair that supports a bather in a seated state is movably supported by a pillar that stands upright in the bathroom, and the handrails on both left and right sides of the chair vertically extend their base ends. A vertical stopper mechanism, which is rotatably supported and rotatable in the torsion direction about its axis, holds the handrail in a horizontal state and restricts its vertical rotation, and a handrail twisting direction. A handrail for a bathing lift, characterized in that a twisting direction stopper mechanism for restricting rotation is provided in association with each other so that they can be locked at the same time.