JP2000070323A - Bathing lift with safety function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To safely elevate/lower a pedestal for comfortable use. SOLUTION: In this bathing lift 38, a person on a pedestal 4 is put in/out of hot water by elevating/lowering the pedestal 4 in a bath tub 8. An abutting body 21 to detect an obstacle in contact therewith is provided at least on one side end face of the pedestal 4, and a safety function 4 to control the movement of the pedestal 4 by the detection is provided, and when the abutting body 21 detects an obstacle while the pedestal 4 descends, of the descending motion the pedestal 4 is urgently stopped, and also it is stopped after elevated to a specified height at the same time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bath lift with a safety function used for bathing a physically handicapped person, an elderly person and the like.

[0002]

2. Description of the Related Art As a conventional technique, Japanese Utility Model 3-32350 is used.
In the official gazette, a bathing wheelchair, a wheelchair bathing device, a bathtub, a column, a chain, an electric motor, a roller frame, a fixing means, a table frame, a pin support plate, A stopper pin, a groove, a top plate, a stopper receiver, a pedal,
A wheelchair-type bathing device including a tension spring and a notch is disclosed.

[0003]

According to the above-mentioned prior art, the configuration relating to safety and protection when a person or an object is sandwiched between the base frame and the surrounding objects of the base frame is disclosed. Not disclosed. There has been a demand for measures relating to safety and protection when the platform frame is raised and lowered.

[0004] It is an object of the present invention to provide a bath lift with a safety function that can be safely lifted and lowered with a pedestal.

[0005]

That is, the present invention relates to a bathing lift (38) for moving a person on the pedestal (4) into and out of hot water by raising and lowering the pedestal (4) in the bathtub (8). At least one side end of 4) is provided with a contact body (21) for detecting a contacting obstacle, and a safety function bath (5) for controlling the movement of the pedestal (4) by the detection is provided. It is a lift. If the abutment body (21) detects an obstacle while the pedestal (4) is descending, the pedestal (4) stops urgently descending, and at the same time, stops after rising to a certain height. A bathing lift (38) for moving a person on the pedestal (4) into and out of hot water by raising and lowering the pedestal (4) in the bathtub (8), wherein the temperature sensor (30) detects the temperature of hot water in the bathtub (8). )When,
If the temperature of the hot water deviates from the set value, an alarm (4
2) and a safety function (5) for displaying and stopping the lowering of the pedestal (4) at the same time, not to stop or drive.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A bath lift 38 is provided in a bathroom and is used for bathing. The pedestal 4 moves up and down into the bathtub 8. When the pedestal 4 sandwiches an obstacle such as a person or an object between the pedestal 4 and an object on the outer periphery, the safety function 5 operates such that the contact body 21 operates to temporarily stop the elevation of the pedestal 4.

[0007] The abutment 21 of the safety function 5 includes a pedestal 4
Is provided at at least one end, and moves when it comes into contact with an obstacle. Detector 22 provided on top of column 2
Is linked to the contact body 21 to detect the presence of an obstacle. When the control unit 20 connected to the detection body 22 obtains a signal from the detection body 22, it controls the elevation drive unit 6. Reverse operation controller 3
3 moves the pedestal 4 in the reverse direction for a short time immediately after the emergency stop. The pedestal 4 during the descent stops the lifting and lowering urgently,
It rises to a certain height and stops.

The setting unit 29 sets the temperature of hot water. Temperature sensor 30 detects the temperature of hot water in bathtub 8. The control unit 20 obtains signals from the setting device 29 and the temperature sensor 30 and the like, and
When the temperature of the hot water in the inside deviates from the set value, the lifting / lowering drive unit 6 is deactivated, or the lifting / lowering drive unit 6 is emergency-stopped or driven in the reverse direction, and the alarm 42 is activated to display an alarm or appear. The elevating drive unit 6 stops the lowering of the pedestal 4 or stops at a certain height.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention shown in FIGS.
It comprises a bathing lift 38, a safety function 5 provided over the pedestal 4 and the lifting / lowering unit 3, and a lifting / lowering drive unit 6 provided on the column 2 and connected to the lifting / lowering unit 3. The bathing lift 38 includes a leg 1, a column 2 erected on the leg 1, a lifting unit 3 that moves up and down along the column 2, and a pedestal 4 supported by the lifting unit 3.

The pedestal 4 is moved up and down between the upper surface of the high-level washing place 7 and the bottom surface 8a of the lower tub 8 by the elevation drive unit 6, and the person riding the pedestal 4 is moved between the two positions.
A slide (not shown) that slides on the column 2 is attached to the pedestal 4, and the pedestal 4 moves up and down along the column 2 in a horizontal state. The base 4 is provided with an appropriate opening 9. The first embodiment is placed in a dug part 10 dug into a corner in a large bathtub 8.

Although the specific construction of the lifting drive unit 6 is not shown, a rotating shaft suspended on the left and right columns 2a and 2b, a speed reducer for rotating the rotating shaft, and a motor Tar-11,
Left and right sprockets fixed to the left and right ends of the rotating shaft,
The left and right chains are hung on the left and right sprockets and the pedestal 4 is suspended at one end.

A weight (not shown) is attached to the other end of the chain. The fixed side cover 12 is put on the elevating unit 3.

An operation unit 13 for operating the lifting / lowering drive unit 6 is provided on the column 2 or the pedestal 4. The operation unit 13 includes a lifting operation unit 14 and a fixed operation unit 16.
Is provided at the upper end of a frame (not shown) standing near the support 2 and erected on the pedestal 4, and performs an operation of raising and lowering the pedestal 4. In addition, the fixed-side operation unit 16 is provided on the left and right upper portions of the fixed-side cover 12 that is put on the column 2, and can be operated by a caregiver in the washing place 7.

The lifting operation unit 14 and the fixed operation unit 16 are
Up / down switches 15a and 15 for raising and lowering the pedestal 4
b, and a stop switch 15c for stopping the pedestal 4. The elevating operation unit 14 can be operated by a person on the pedestal 4.
The elevating cover 17 is put on the frame.

If the shape of the bathtub 8 is elongated to the left, a front handrail 18 is attached to the front of the pedestal 4 (= front side) as shown in FIG.

The safety function 5 is activated when the pedestal 4 sandwiches an obstacle such as a person or an object between the pedestal 4 and an object on the outer periphery.
The safety function 5 includes a detection unit 19 that detects an obstacle under the pedestal 4.
And a control unit 20 connected to the detection unit 19.

The detecting section 19 is activated when it comes into contact with an obstacle, and is provided at a plurality of contact members 21 provided at a plurality of positions of the pedestal 4, and provided above the support 2 by detecting the presence of the obstacle in conjunction with the contact member 21. And a detector 22 to be detected.

The contact body 21 is provided on the pedestal 4 so that a plurality of portions of the pedestal 4 can be simultaneously detected, and detects the presence of an obstacle at the plurality of portions by abutment. Entangled objects can be detected at required locations on the back of the pedestal 4, and human safety and object protection can be reliably ensured.

More specifically, the contact body 21 includes a support arm 23 provided on the back of the pedestal 4 and movable within a predetermined range, and a pulley 24 attached to a lower end of the support arm 23 by a bearing 41. A flexible wire 25 is stretched between the pulleys 24. The distal end of the wire 25 is fixed to the pedestal 4, and the proximal end of the wire 25 is locked by a link mechanism 26.

The link mechanism 26 comprises a lower link 27 connected to the wire 25 and a vertical link 28 connected to the lower link 27. The upper end of the vertical link 28 faces the detection body 22 composed of a switch. The detection body 22 operates by the upward movement of the vertical link 28.

The output of the detector 22 is connected to the control unit 20, and one of the outputs of the control unit 20 is connected to the alarm 42. When the control unit 20 obtains the signal of the detection body 22, the lifting drive unit 6 that raises and lowers the pedestal 4 is urgently stopped, and the alarm 42 is activated to generate an alarm.

A setting device 2 for setting the temperature of bathing water in the operation section 13
9 are provided. A temperature sensor 30 for detecting the temperature of hot water in the bathtub 8 is provided below the column 2. A comparator 31 for comparing both outputs of the setting device 29 and the temperature sensor 30 is provided.

The output of the comparator 31 is input to the control unit 20. When the hot water temperature in the bathtub 8 deviates from the set value, the comparator 31
Is output to the control unit 20. At this time, the control unit 20 operates to stop the lifting drive unit 6 in an emergency, and stops the lowering of the pedestal 4.

When a signal from the detector 22 is obtained, the control unit 20 is connected to a controller 32 for urgently stopping the elevating drive unit 6 for elevating the pedestal 4 and between the controller 32 and the elevating drive unit 6. Immediately after the stop, the pedestal 4 has a reverse operation control unit 33 for operating the vertical drive unit 6 for a predetermined short time in the reverse direction. The pedestal 4 moves in a direction opposite to the immediately preceding movement direction by the reverse operation of the lifting drive unit 6.

In FIG. 1, reference numeral 34 denotes a drain port, reference numeral 35 denotes a fixed transfer member, reference numeral 36 denotes a safety belt, reference numeral 37 denotes a back rail, reference numeral 40 denotes a guide, and reference numeral 43 denotes a mounting plate attached to the support column 2.

In the first embodiment, it is assumed that the pedestal 4 is raised by operating the operation unit 13 when using the first embodiment. Next, the person in the bathing posture is transferred from the washing place 7 to the pedestal 4 while being placed on a wheelchair (not shown).

The caregiver pushes down switch 15b to lower pedestal 4 to the lower limit position, soaks the bather in hot water together with the wheelchair and takes a bath. If the obstacle of the bather is mild, the bather can operate the operation unit 13 by himself.

When the pedestal 4 approaches the lower limit position, it hits a lower limit position detector (not shown), the lower limit position detector is activated, the elevation drive unit 6 is controlled, and the pedestal 4 stops at the lower limit position to take a bath. I do. The contact body 21 may be operated instead of the lower limit position detector, and the base 4 may be stopped at the lower limit position by the operation.

At the time of bathing, first, the wheelchair is transferred from the bottom surface 8a to the pedestal 4. Next, the caregiver goes up switch 1
5a is pushed to raise the pedestal 4 to the upper limit position. Pedestal 4
When approaches the upper limit position, the pusher (not shown) hits the upper limit position detector (not shown), and the position detector operates,
The elevation drive unit 6 is controlled, the pedestal 4 rises, stops at the upper limit position, and takes a bath.

The safety function 5 is activated when the lowering pedestal 4 sandwiches an obstacle between the pedestal 4 and an object on the outer periphery. The contact body 21 of the safety function 5 moves within a predetermined range when hitting an obstacle. The detection body 22 provided on the upper part of the support 2 is a contact body 21.
Detects the presence of an obstacle in conjunction with.

That is, when the wire 25 or the pulley 24 of the abutment 21 moves against a person or an object, the base end of the wire 25 is pulled, the link mechanism 26 is operated, and the detector 22 is operated. The control unit 20 connected to the detection body 22
When the signal from the control unit 2 is obtained, the lifting drive unit 6 is stopped urgently, and the lifting of the pedestal 4 is stopped urgently.

The contact members 21 provided at the periphery of the back portion of the pedestal 4 and at a plurality of locations on the back portion detect the presence of obstacles at a plurality of locations on the back portion of the pedestal 4 by contact with the abutment members 21. . By providing the contact body 21 at a plurality of locations, the presence of an obstacle is detected on substantially the entire back surface of the pedestal 4.

The bath hot water temperature is set by a setting device 29 provided in the operation unit 13. A temperature sensor 30 provided at a lower portion of the column 2 detects the temperature of hot water in the bathtub 8. Comparator 31
Compares both outputs of the setting device 29 and the temperature sensor 30,
When the temperature of the hot water in the bathtub 8 deviates from the set value, the output from the comparator 31 gives a signal to the control unit 20, and the control unit 20 stops the lifting drive unit 6 urgently and stops the lowering of the pedestal 4.

When the controller 32 of the control unit 20 receives the signal of the detection body 22, the controller 32 raises and lowers the pedestal 4.
Emergency stop. When the controller 32 causes the elevating drive unit 6 to stop urgently, the reverse operation control unit 33 causes the elevating drive unit 6 to drive the elevating drive unit 6 in the reverse direction for a short time immediately after the emergency stop, and Is moved a small distance in the opposite direction.

In the second embodiment shown in FIG. 5, the detecting section 19 in the first embodiment is constituted by a composite detector 39. The composite detector 39 is activated when it comes into contact with an obstacle, and detects the presence of the obstacle. When the control unit 20 obtains the signal of the composite detection body 39, the control unit 20 urgently stops the lifting drive unit 6 and stops the lowering of the pedestal 4.

The composite detector 39 deforms when it comes into contact with an obstacle, and detects the presence of the obstacle. Composite detector 3
When the control unit 20 connected to the control unit 9 receives the signal of the composite detection body 39, the control unit 20 drives the lifting / lowering drive unit 6 to stop in an emergency direction or in the opposite direction to stop the elevation of the pedestal 4, and further moves in the reverse direction. Let it.

Since the contact body 21 and the detection body 22 are integrated in the composite detection body 39, the detection unit 1 attached to the main body is provided.
9 saves space and makes the device compact.

[0038]

According to the present invention, the bathing lift 38 is provided with a safety function 5 for performing appropriate control such as urgently stopping the movement of the pedestal 4 when the pedestal 4 sandwiches an obstacle between the pedestal 4 and an object on the outer periphery. Therefore, it is possible to improve the safety of persons, avoid the damage of the sandwiched object, and also avoid the damage of the bathing lift 38 itself, which is convenient.

The control unit 20 according to the present invention includes the detection unit 19
When the above signal is obtained, the lifting drive unit 6 for raising and lowering the pedestal 4 is urgently stopped. The detection unit 19 includes a contact body 21 and a detection body 22. The contact body 21 made of a metal member can enter the hot water, and the detection body 22 is located at a position above the support column 2 so as not to enter the hot water. To avoid electric shock accidents,
This is advantageous because safety can be achieved, and waterproofing equipment relating to the detector 22 can be omitted, and durability can be improved and costs can be reduced.

Further, since the control unit 20 has the reverse operation control unit 33 for moving the pedestal 4 in the reverse direction for several seconds immediately after the emergency stop, when the pedestal 4 sandwiches a person or an object with a surrounding object. Since the pedestal 4 immediately moves in the direction away from the surrounding objects, it is possible to more appropriately secure human safety, avoid damage to the sandwiched object, and further prevent damage to the bathing lift 38 itself. It is convenient.

In the present invention, when the temperature of hot water in the bathtub deviates from the set value, the control unit 20 stops the descent of the pedestal 4 by urgently stopping the driving unit. It is possible to avoid an inappropriate situation such as giving a bather discomfort or causing burns by taking a bath, and the bath can be safely and safely performed, which is convenient.

[Brief description of the drawings]

FIG. 1 is a perspective view of a first embodiment of the present invention.

FIG. 2 is a bottom view of the first embodiment of the present invention.

FIG. 3 is a rear partial sectional view of the first embodiment of the present invention.

FIG. 4 is a block diagram of a first embodiment of the present invention.

FIG. 5 is a block diagram of a second embodiment of the present invention.

[Explanation of symbols]

 4 Pedestal 5 Safety function 6 Elevating drive unit 8 Bathtub 20 Control unit 21 Contact body 22 Detector 29 Setter 30 Temperature sensor 32 Controller 33 Reverse operation controller 38 Bathing lift 39 Composite detector 42 Alarm

Claims (3)

[Claims] 1. A bath lift (3) for moving a person on the pedestal (4) into and out of hot water by raising and lowering the pedestal (4) in the bathtub (8).
8), wherein at least one end of the pedestal (4) is provided with a contact body (21) for detecting a contacting obstacle, and a safety function (5) for controlling the movement of the pedestal (4) based on the detection. ) Is a bath lift with safety function. 2. If the abutment body (21) detects an obstacle during the lowering of the pedestal (4), the pedestal (4) stops the lowering urgently and at the same time stops after rising a certain height. The bath lift with a safety function according to claim 1. 3. A bath lift (3) for moving a person on the pedestal (4) into and out of hot water by raising and lowering the pedestal (4) in the bathtub (8).
8), a temperature sensor (30) for detecting the temperature of hot water in the bathtub (8), an alarm (42) for displaying an alarm when the temperature of the hot water deviates from a set value, and a pedestal (4) for displaying at the same time. ) Is a safety lift with a safety function provided with a safety function (5) that does not stop or drive down.