JP3466766B2 - Straight bathing lifter - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a straight-ahead type bathing lifter for bathing a physically handicapped person, an elderly person and the like.

[0002]

2. Description of the Related Art As a conventional technique, Japanese Patent Laid-Open No. 6-31977
Japanese Patent No. 8 discloses a rail, a traveling carriage, a seat, a wheelchair, a bathtub, a column, a lifting rail, a driving means, an intermediate rail, a seat body, a chair portion, and a footrest. Part and
A bathing device comprising a connecting means is disclosed.

[0003]

The above-mentioned conventional device does not disclose a structure for slow-starting and slow-stopping the vertical movement of the rail, and also prevents the seat body from falling from the tip of the intermediate rail. No configuration disclosed.

Therefore, a bather may feel uncomfortable due to a sudden start and stop of ascending / descending movements, much attention needs to be given to a stop instruction at the upper limit position of the rail, or a bather may fall off the rail. Had. An object of the present invention is to solve the above-mentioned drawbacks, and to provide a straight-ahead type bath lifter that allows a bather to safely take a bath without causing discomfort during a bathing operation and has a simple bathing operation. is there.

[0005]

That is, the present invention comprises a bath lifter 2 which is detachably mounted in a bathtub 1 and a transport vehicle 3 which can be joined to the bath lifter 2. The transport vehicle 3 is movable. The bath lifter 2 includes a transfer rail 11 to which the trolley part 4 is connected, and a series of the transfer rail 11 and a seat part 5 that is detachably mounted on the trolley part 4. Lift rail 12 located in the bathtub 1
When a lift 13 for raising and lowering the elevating rails 12, made from the control unit 14 which controls the lift 13, the pass-les
On the base 11, the movement of the lifting rail 12 during the descent is slowed down.
-Downward stop detector 18 to stop and lift rail 1
Upward stop detection that slows down the movement while climbing 2
The output device 20 is attached, and the operating portion 15 and the downward stop detector are attached.
18 and the output of the upper stop detector 20 are output from the controller 14
Input to the low start stop circuit 36,
Tart stop circuit 36 slows down elevator rail 12
Motor 38 with reduction gear to start or slow stop
It is a straight-ahead bath lifter characterized by controlling the rotation of the bath. The slow start stop circuit 36 is
The counter 39 for measuring the
Calculation unit 40 for calculating the power ratio and output of the calculation unit 40
And a drive pulse generator 41 for generating a drive pulse.
The drive pulse generator 41 has a slow start signal.
When received, the duty is gradually increased from the duty of 10%
Generates a pulse of up to 100% and a slow stop signal
When receiving a pulse, the duty is gradually reduced from the 100% duty pulse.
Generates pulses up to 0% and the motor 38 with a reducer
It rotates according to the duty ratio value. In addition, at the tip of the transfer rail 11, a swing rail 2 that is rotatable in a vertical plane is provided.
1 is rotatably supported at the intermediate portion thereof, and when the tip of the rotary rail 21 is in an inclined shape lower than the transfer rail 11,
The base end of the rotating rail 21 projects higher than the transfer rail 11, and the seat 5 has a base end of the protruding rotating rail 21.
It collides with the rail and is prevented from moving in the direction of the lifting rail 12.

[0006]

When the user takes a bath using the present invention, the carrier 3 carrying the bather is moved and connected to the bath lifter 2. The trolley part 4 is joined to the transfer rail 11 of the bath lifter 2 and the trolley part 4
The seat part 5 is separated from the
Transfer to.

Further, the seat portion 5 is transferred to the lift rail 12 provided in the bathtub 1. The control unit 14 controls the lift 13, and the lift 13 lowers the elevating rail 12 so that the bather is immersed in hot water together with the elevating rail 12. At the time of leaving the bath, the elevating rail 12 is raised to raise the bather together with the elevating rail 12 above the upper end of the bath 1.

The control unit 14 controls the lift 13 to slow start and slow stop the lifting rail 12. Lower stop detector 18 attached to the transfer rail 11
Operates when the elevating rail 12 reaches a predetermined position below the elevating rail 12. The horizontal stop detector 19 attached to the transfer rail 11 operates when the elevating rail 12 is at the same height as the transfer rail 11.

The rotary rail 21 pivotally supported by the tip of the transfer rail 11 has its base end protruding above the transfer rail 11, and the tip of the rotary rail 21 is attached to the ascending and descending rail 12. When lifted, the swing rail 21
Turns to be horizontal, and the base end of the turning rail 21 is flush with the transfer rail 11.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiment of the present invention shown in FIG. 1 comprises a bath lifter 2 which is removably placed in a bath 1 and a carrier 3 which can be joined to the lifter 2. The carrier 3 is composed of a movable carriage portion 4 and a seat portion 5 which is detachably mounted on the carriage portion 4, and the seat portion 5 is movably supported under the seat portion 5. The roller 6 and the seat portion 5 are connected to the carriage portion 4
A stopper pin (not shown) for latching to the seat is attached, and a lever 8 for removing the stopper pin is provided on the side portion of the seat portion 5.

A truck rail 9 on which the seat 5 is placed and a truck stopper receiving hole tool (not shown) into which the stopper pin biased downward is fitted are provided on the upper portion of the truck portion 4. A hook 7 for connecting / disconnecting the carriage 4 to / from the bath lifter 2 is attached to the front of the carriage 4.

The bathing lifter 2 is provided with a transfer rail 11 to which the carriage 4 is connected, an elevating rail 12 provided in the bathtub 1 in a series on the passing rail 11, and a lift 13 for elevating the elevating rail 12. And a control unit 14 (see FIG. 6) that controls the lift 13. The control unit 14
Are stored in the operation unit 15. The transfer rail 11 is provided with a docking fitting 16 that receives the hook 7. The control unit 14 controls the lift 13 so that the elevating rail 12 starts and stops slowly.

3 and 4, the attachment 17 of the transfer rail 11 includes a lower stop detector 18 that operates when the lift rail 12 reaches a predetermined lower position, and the lift rail 12 is connected to the transfer rail 11. The horizontal stop detector 19 that operates when the height is the same and the upper stop detector 20 that operates when the lifting rail 12 reaches a predetermined upper position are attached, and the three detectors 18, 19, 20 are attached. Is output to the control unit 14.

The structure for activating the lower stop detector 18 is provided below the bathtub 1 and is rotated by being pushed down by the elevating rail 12 to rotate, and when the corresponding contact 44 is rotated, it is pushed up. It comprises a rod 10 on which the lower stop detector 18 is activated. According to the detection configuration including the rotating abutment tool 44, the rod 10, and the downward stop detector 18, the position of the elevating rail 12 in the hot water can be detected at the position outside the hot water, and the waterproof structure can be simplified. Is convenient.

The lower stop detector 18 slows down the movement of the elevating rail 12 while it is descending, and the upper stop detector 20 slows down the movement of the elevating rail 12 while it is ascending. Stop detector 1
Reference numeral 9 is for operating when a turning rail 21 described later is at the same height as the transfer rail 11, and stops the ascending movement of the elevating rail 12.

The turning rail 21 is rotatably supported on a vertical surface such that the intermediate portion of the rail 21 is axially supported by the tip of the transfer rail 11. When the tip of the turning rail 21 is in a downward slope, the base end of the turning rail 21 projects above the passing rail 11, and the turning rail 21
When the tip of the rotary rail 21 is lifted by the scooping plate 22 attached to the rear end of the rising and lowering rail 12, the rotary rail 21 is rotated to change its position horizontally.

The tip of the turning rail 21 is formed in a pointed shape in a plan view, and the turning rail recess 2 is formed in the center of the tip in a side view.
1a is formed. A rear end of the elevating rail 12 joined to the rotating rail 21 is formed with an elevating rail recess 12a at the center in plan view, and a horizontal rod 24 is hung between the left and right side pieces 12b and 12c. When the elevating rail 12 pushes up the rotating rail 21, the pointed portion 21b of the rotating rail 21 fits into the elevating rail recess 12a, and at this time, the horizontal rod 24 provided on the elevating rail 12 rotates. It fits into the rail recess 21a. (See Figure 6)

The lift 13 shown in FIG. 5 includes a support column 23, a reduction gear motor 26 provided on a top portion 25 of the support column 23,
A sprocket 28 attached to the shaft 27 of the motor 26 with a reduction gear, a chain 29 hung on the sprocket 28,
The chain 29 includes a weight 30 attached to the tip end 29a of the chain 29, an elevating body 31 attached to the base end 29b of the chain 29, and a support rail 32 for movably supporting the elevating body 31.

FIG . 7 shows a block diagram of the control unit 14, and the lifting rail 1 is provided on the surface of the operation unit 15 (see FIG. 1).
2 lowering switch 33 for instructing lowering, and lifting rail 1
2 ascending switch 34 for instructing ascending and lifting rail 1
A stop switch 35 for instructing the stop of the lifting and lowering movement of No. 2 is provided, and these three switches 33, 34, 35 are manual switches.

The outputs of the lowering switch 33, the raising switch 34 and the stop switch 35 are input to a slow start stop circuit 36 for slow-starting or slow-stopping the elevating rail 12. The output of the lower stop detector 18 which is automatically actuated by acting on the lifting rail 12, and the upper stop detector 1 which is actuated automatically by being acted on the rotating rail 21.
The outputs of 9 and the horizontal stop detector 19 are also input to the slow start stop circuit 36.

The output of the slow start / stop circuit 36 is input to a lift drive circuit 37 for driving the lift 13. The output of the lift drive circuit 37 is the lifting rail 1
2 is applied to the speed reducer-equipped motor 38 that appropriately slow-starts or slow-stops 2 as described above.

The slow start / stop circuit 36 includes a counter 39 for measuring a time, an arithmetic unit 40 for obtaining an output of the counter 39 and performing an arithmetic operation, and a drive pulse generation for obtaining an output of the arithmetic unit 40 to generate a drive pulse. And a part 41.

Further, the slow start / stop circuit 36
Is a signal determination unit 42 that determines whether the circuit 36 has received a slow start signal, a slow stop signal, or a stop signal, and a drive ratio storage unit that stores a value of a current distribution ratio of 100. 43, and outputs of the signal determination unit 42 and the drive ratio storage unit 43 are given to the arithmetic unit 40.

In FIG. 1, reference numeral 45 is a battery storage box, 52 is a wheel stopper, 50 is a fixture for fixing the bath lifter 2 to the edge of the bathtub 1, 49 is a rubber pad, 51 is the stopper pin of the seat portion 5 fitted therein. Stopper receiving hole tool 5 with a hole
1, 46 in FIG. 3 is a lifting prevention metal fitting, 47 is a guide,
Reference numeral 48 denotes a guide roller provided on the transport vehicle 3.

In using the embodiment, the caregiver
First, the carrier 3 carrying the bather is moved and connected to the bath lifter 2, and the transfer rail 11 of the bath lifter 2 is joined to the transfer rail 9 of the transfer unit 4. Truck section 4 to seat section 5
Is separated, and the seat portion 5 is transferred to the transfer rail 11,
Further, the seat portion 5 is transferred to the lift rail 12 provided in the bathtub 1.

Next, the lowering switch 33 of the operating section 15 is pushed, the slow start stop circuit 36 is operated, the lift drive circuit 37 is operated, and the lift 13 is driven. The lift 13 lowers the elevating rail 12 by slow start, so that the bather can be immersed in hot water together with the elevating rail 12.

When the elevating rail 12 reaches a predetermined position below,
The elevator rail 12 activates the downward stop detector 18, the detector 18 activates the slow start stop circuit 36, activates the lift drive circuit 37, and the lift 13 causes the elevator rail 12 to slow stop.

When it is desired to finish bathing after being immersed in hot water for a while, the lift switch 34 of the operating portion 15 is pushed, the slow start stop circuit 36 is operated, the lift drive circuit 37 is operated, and the lift 13 is driven. . Lift 1
3 raises the elevating rail 12 by slow start and puts the bather together with the elevating rail 12 above the surface of the bath.

When the elevating rail 12 reaches a predetermined upper position during the upward movement of the elevating rail 12, the rail 12 scoops the rotating rail 21 to rotate the rotating rail 21.
The pivot rail 21 actuates the upper stop detector 20, which activates the slow start stop circuit 36 and the lift drive circuit 37. Then, the lift 13 puts the lifting rail 12 into the slow stop state.

When the lifting rail 12 is raised, the rail 1
2 continues to ascend at a low speed in the slow stop state, and when the elevation rail 12 reaches the same height as the transfer rail 11, the horizontal stop detector 19 operates to stop the elevation movement of the elevation rail 12. When the stop switch 35 is pressed, the lifting rail 12 immediately stops the lifting movement regardless of the position.

Next, the operation of the slow start / stop circuit 36 will be described. When a signal is input to the circuit 36, the counter 39 starts counting a limited time and the arithmetic unit 40 is operated. When the signal determination unit 42 determines that the signal is the slow start signal, the calculation unit 40 first multiplies the energization ratio 100 of the drive ratio storage unit 43 by 0.1 and then by 0.2,
Gradually increase the value and multiply by 1 at the end.

The calculation unit 40 performs a gradual increase calculation during the count time, and reaches the maximum of 100 when the timer expires.
After the count ends, this maximum value continues to occur. The drive pulse generator 41 obtains the signal from the calculator 40, gradually increases the duty 10% pulse to the duty 100% pulse as instructed by the signal, and continuously generates the duty 100% pulse thereafter. Occur.

When the signal determination unit 42 determines that the signal is the slow stop signal, the calculation unit 40 first multiplies the value of the energization ratio 100 of the drive ratio storage unit 43 by 1 and then 0.9.
Gradually lower the value and multiply by 0 at the end. Arithmetic unit 40
Performs a gradual decrease operation during the counting time, reaches a minimum value of 0 at the time of expiration, and continues to generate this minimum value after the end of counting.

The drive pulse generator 41 obtains the signal from the calculator 40 and gradually reduces it from a pulse of 100% duty to a pulse of 0% duty as instructed by the signal.
After that, the duty is set to 0%, that is, the pulse is not generated, and this state is continued until the next signal is input.

When the signal determination unit 42 determines that the input signal is the stop signal, the operation unit 40 multiplies the energization ratio 100 of the drive ratio storage unit 43 by 0, and the drive pulse generation unit 41 determines the signal of the operation unit 40. As a result, the duty is 0%, that is, the pulse is not generated.

When a pulse of 0% duty is applied from the slow start stop circuit 36 to the lift drive circuit 37, the motor 38 with a reduction gear stops rotation, and a pulse of 100% duty is sent from the slow start stop circuit 36 to the lift drive circuit 37. The motor 38 with a speed reducer rotates at full speed, and the motor 38 with a speed reducer rotates in proportion to the duty ratio value when the duty is between 0% and 100%.

The pivot rail 21 pivotally supported on the tip of the transfer rail 11 has its base end protruding above the transition rail 11, and the tip of the pivot rail 21 is attached to the ascending and descending rail 12. When lifted, the swing rail 21
Rotates to become horizontal, and the base end becomes flat and level with the transfer rail 12 to eliminate the protrusion.

When the lift rail 12 reaches the upper limit position, the caregiver unlocks the seat portion 5 from the lift rail 12 with the lever 8, transfers the seat portion 5 to the transfer rail 11, and further transfers to the carriage rail 9. The seat portion 5 is hooked on the trolley portion 4. The hook 7 is removed, the carrier 3 is detached from the docking metal fitting 16 of the transfer rail 11, the bather is wiped, and the bathing is completed.

Since the base end of the rotating rail 21 projects higher than the transfer rail 11, when the seat portion 5 on the transfer rail 11 moves toward the bathtub 1, the lifting rail 12 moves.
When the seat part 5 is lower than the transfer rail 11, the seat part 5 collides with the base end of the protruding turning rail 21, and the seat part 5 moves toward the elevating rail 12 so that the seat part 5 does not fall from the transfer rail 11. Is blocked.

[0040]

According to the present invention , since the control unit 14 for controlling the lift 13 controls the elevator rail 12 to slow start and slow stop, the bather can start a sudden elevation movement during the bathing operation or It was possible to avoid the discomfort caused by stopping and to be able to comfortably and safely take a bath.

The transfer rail 11 according to the present invention includes a lower stop detector 18 for slow-stopping the movement of the elevating rail 12 while the elevating rail 12 is descending, and a movement of the elevating rail 12 while the elevating rail 12 is ascending.
An upper stop detector 20 for slow stop is attached, and when both detectors 18 and 20 are operated, the lifting rail 12
Since the vertical movement of the elevator will slow down,
Since it is no longer necessary to manually perform the slow stop at the upper and lower limits, there is no need to worry about the timing of the slow stop , which makes the operation easier and safer, which is convenient.

At the tip of the transfer rail 11 according to the present invention , a rotary rail 21 is pivotally supported at its intermediate portion, and when the rotary rail 21 is inclined, the rotary rail 21 is provided.
The base end of the rotation rail 21 protrudes above the transfer rail 11, and when the tip of the rotation rail 21 is lifted by the rising and lowering rail 12, the rotation rail 21 rotates and becomes horizontal. The danger that the seat portion 5 on the transfer rail 11 will fall off the transfer rail 11 when the lift rail 12 is not at the same height as the transfer rail 11 can be avoided, and the safety can be improved.

[Brief description of drawings]

FIG. 1 is a side view of an embodiment of the present invention.

FIG. 2 is a plan view of a bath lifter according to an embodiment of the present invention.

FIG. 3 is a plan view of the transfer rail according to the embodiment of the present invention.

FIG. 4 is a right side view of the transfer rail according to the embodiment of the present invention.

FIG. 5 is a right side view of the inside of the lift seen through in the embodiment of the present invention.

FIG. 6 is a sectional view of a rotary rail recess in the embodiment of the present invention.

FIG. 7 is a block diagram of an electrical configuration of an embodiment of the present invention.

[Explanation of symbols]

1 bathtub 2 bath lifters 3 transport vehicles 4 dolly 5 seats 11 passing rail 12 Lifting rail 13 lift 14 Control unit 18 Downward stop detector 19 Horizontal stop detector 21 Pivoting rail

Claims (3)

(57) [Claims] 1. A bath lifter (2) detachably mounted in a bath (1) and a transport vehicle (3) connectable to the bath lifter (2), wherein the transport vehicle (3) is The bath lifter (2) comprises a movable carriage part (4) and a seat part (5) which is detachably mounted on the carriage part (4).
Is a transfer rail (11) to which the carriage unit (4) is connected, an elevating rail (12) located in series in the transferring rail (11) and provided in the bathtub (1), and the elevating rail (12).
Lift (13) for raising and lowering the made from the control unit for controlling the lift (13) and (14), said passing rail (1
In 1), the movement of the lifting rail (12) during the descent is slowed down.
-Lower stop detector (18) to stop and lift rail
While slowing down (12), slow down the movement
The one-way stop detector (20) is attached to the front of the operation unit (15).
The lower stop detector (18) and the upper stop detector (2
The output of 0) is the slow start stop of the control unit (14).
It is input to the circuit (36) and the slow start stop times
The road (36) slow-starts the lift rail (12) or
The speed of the motor with reduction gear (38)
A straight-ahead bath lifter characterized by controlling movement . 2. A slow start stop circuit (36)
Is a counter (39) for measuring time, and the counter (3
An arithmetic unit (40) that obtains the output of 9) and calculates the energization ratio
And obtain the output of the arithmetic unit (40) to generate a drive pulse.
A drive pulse generator (41) for
When the generator (41) receives the slow start signal, it
From 10% pulse to 100% duty
Generates a pulse and receives a slow stop signal
I From 100% pulse, gradually decrease to 0% duty
And the motor with reduction gear (38)
The straight advance type bath lifter according to claim 1, wherein the straight forward bath lifter is rotated according to a ratio value . 3. A bath lifter (2) detachably mounted on a bath (1), and a transport vehicle (3) connectable to the bath lifter (2), wherein the transport vehicle (3) is The bath lifter (2) comprises a movable carriage part (4) and a seat part (5) which is detachably mounted on the carriage part (4).
Is a transfer rail (11) to which the carriage unit (4) is connected, an elevating rail (12) located in series in the transferring rail (11) and provided in the bathtub (1), and the elevating rail (12).
The transfer rail (11) is composed of a lift (13) for moving up and down and a control unit (14) for controlling the lift (13).
At the tip of the, there is a swing rail (21) that can swing in a vertical plane.
Is pivotally supported at its intermediate portion and the tip of the turning rail (21) is in an inclined shape lower than the transfer rail (11), the base end of the turning rail (21) is the transfer rail (1).
It protrudes above 1) and the seat part (5) protrudes
It collides with the base end of the rotating rail (21) and the lifting rail (1
2) A straight-ahead bath lifter characterized by being prevented from moving in the direction .