JP6703325B2 - Separate lift car and bathing device - Google Patents

Description

The present invention relates to a separate lifting/lowering conveyance including a carriage unit, a mounting unit that is separable from the carriage unit and that mounts a bathing person such as a person requiring assistance, and an elevating unit that vertically elevates the mounting unit. A vehicle (hereinafter referred to as a "transport vehicle").

In the transport vehicle (wheelchair) of Patent Document 1 described below, the mounting portion (seat portion) and the carriage portion can be separated, and the lifting portion (X-shaped link type lifting body) is driven by a hydraulic cylinder. And, the mounting part can move up and down.

Japanese Patent No. 3352580

However, in the above-described conventional transport vehicle, when an obstacle interferes with the elevating part and the mounting part, the weight of the entire transport vehicle is applied to the obstacle. This obstacle includes peripheral devices and equipment. Therefore, in the conventional transport vehicle, when an obstacle interferes with the lifting part, the power of the hydraulic cylinder is applied to the obstacle, which causes damage or damage to the transport vehicle or the obstacle, or the safety around the transport vehicle. May decrease.

The present invention has been made in view of the above-mentioned problems, and while the elevating part is descending, even if an obstacle interferes with the elevating part or the mounting part, the load of the entire transport vehicle is not applied to the obstacle. It is an object of the present invention to provide a carrier vehicle capable of preventing damage and damage of the carrier vehicle and obstacles due to the interference, and improving safety of facilities and the like around the destination.

The present invention provides the following means in order to achieve the above object.

(1) A carrier vehicle according to the present invention is a carrier vehicle including a carriage portion, a mounting portion that is separable from the carriage portion and mounts a bather, and an elevating portion that elevates and lowers the mounting portion. The elevating part is provided with an elevating part driving mechanism for elevating the elevating part, and the elevating part driving mechanism supports the elevating part so as to be separated from the elevating part, and when the elevating part is moving down. When a load greater than a predetermined amount is applied to the elevating section in a direction against falling, the elevating section drive mechanism and the elevating section are separated from each other, and it is detected that the elevating section is separated from the elevating section drive mechanism by a certain distance. as spacing detector for, provided with spaced transfer block and the limit switches, the separation overall transfer block and the whole of the limit switch is provided et been without interposing a partition between said predetermined distance is the separation transfer block It is characterized in that it can be set arbitrarily depending on the installation position of .

According to this configuration, since the lifting/lowering unit drive mechanism supports the lifting/lowering unit so that it can be separated from the lifting/lowering unit, even if the lifting/lowering unit drive mechanism cannot descend due to interference from an obstacle, for example, the lifting/lowering unit drive mechanism is separated. Then, you can descend alone. As a result, the obstacle only needs to be weighed by the weight of the lifter and the mount and the weight of the bather on the mount, and the weight of the entire transport vehicle and the power of the lifter drive mechanism for lowering the lifter. Does not hang.

As described above, according to the above configuration, even if an obstacle interferes with the elevating part or the mounting part, the load of the entire transport vehicle and the power of the elevating part drive mechanism for lowering the elevating part are applied to the obstacle. Therefore, it is possible to prevent damage to the transport vehicle and obstacles and improve the safety around the transport vehicle.

(2) In the present invention, in a preferred embodiment, the elevating/lowering portion drive mechanism includes a direct-acting cylinder and a mechanism frame, and when the direct-acting cylinder operates and expands and contracts, the mechanical frame becomes Ascending/descending, the elevating part is placed on the mechanism frame body, and the mechanism frame body supports the elevating part so as to be separable from below.

According to this configuration, even if an obstacle interferes with the elevating part and the mounting part, the elevating part is only placed on the mechanism frame, so the load of the entire transport vehicle and the elevating part are lowered on the obstacle. Since the power of the direct-acting cylinder of the lifting/lowering part drive mechanism is not applied, damage to the transport vehicle and obstacles can be prevented, and the safety around the transport vehicle is improved.

(3) In the present invention, in a preferred embodiment, based on the detected prior Symbol spaced detector, suppressing the lowering of the elevating unit driving mechanism.

With this configuration, when the separation detecting unit detects that the elevating unit is separated from the elevating unit driving mechanism by a predetermined distance, the descending of the elevating unit driving mechanism is suppressed.

Therefore, if the distance to be detected is set to be short, the distance that the elevating part can descend to the elevating part drive mechanism becomes short. Therefore, the interference with the obstacle is eliminated, and the impact when the elevating part descends and abuts on the elevating part drive mechanism can be extremely small. Therefore, the bather's safety can be maintained and the transport vehicle can be prevented from being damaged when the elevating part is lowered after the interference with the obstacle is eliminated.

(4) In a preferred aspect of the present invention, the elevating part raises the elevating part drive mechanism based on the detection by the separation detecting part until the detecting part does not detect at least. To do.

According to this configuration, when the separation detecting unit detects that the elevating unit is separated from the elevating unit driving mechanism by a predetermined distance, the elevating unit driving mechanism moves up until it does not detect at least.

As a result, the obstacles do not interfere with the elevating part and the mounting part, so that the obstacles can be easily removed.

(5) bathing apparatus according to the present invention, the front comprises a Ki搬 Okukuruma, bathtub.

According to this configuration, before it comprises a Ki搬 Okukuruma, a bath tub, can be performed safely entering and leaving bath.

According to the present invention, the elevating section drive mechanism is provided inside the elevating section such that the elevating section driving mechanism is separated from the elevating section when a load greater than a predetermined amount is applied to the elevating section in a direction counter to the downward movement. Therefore, when an obstacle interferes during the lowering of the elevating unit, the elevating unit does not descend even if the elevating unit drive mechanism descends. As a result, the weight of the entire transport vehicle and the power of the lifting/lowering unit drive mechanism for lowering the lifting/lowering unit do not need to be applied even if the load of the lifting/lowering unit and the mounting unit is applied to the obstacle. As a result, damage to the transport vehicle or obstacles due to the interference can be prevented, and the safety in transport is improved.

It is a perspective view shown in the state where the transportation vehicle was horizontally attached to the bathtub and connected. It is a perspective view of a conveyance vehicle in which a lifting part is in a lower limit position. It is a perspective view of a conveyance vehicle in which an elevating part is in an upper limit position. FIG. 3 is a front view of a transport vehicle corresponding to FIG. 2 and showing a main portion in a cross section. It is a front view of the conveyance vehicle which corresponds to FIG. 3 and shows a principal part in a cross section. It is a partial enlarged view showing an operating state when an obstacle is caught. FIG. 7 is a further enlarged view of a portion of FIG. 6.

Hereinafter, a carrier according to an embodiment of the present invention will be described with reference to the accompanying drawings.

The transport vehicle will be described with reference to FIGS. 1 to 3. FIG. 1 shows a state in which a carrier vehicle is placed next to and connected to a bathtub. FIG. 2 shows a carrier vehicle in which the lifting unit is at the lower limit position, and FIG. 3 shows a carrier vehicle in which the lifting unit is at the upper limit position.

In FIG. 1, a carrier vehicle 1 is connected to a bathtub 2 in a horizontally mounted state. The transport vehicle 1 includes a carriage unit 3, a mounting unit 4 that is separable from the carriage unit 3, and an elevating unit 5 that elevates and lowers the mounting unit 4. In FIG. 1, for clarity of illustration, the mounting portion 4 is shown in a state of being moved from the carrier 1 to the bath 2 side.

The dolly unit 3 includes casters 6, an underframe 7, and a dolly box 8.

The trolley box 8 is provided with a lift pedal 9 and a bathtub lock release pedal 10. The lifting pedal 9 is a pedal for lifting and lowering the lifting unit 5. When the dolly unit 3 is connected to the bathtub 2, the dolly unit 3 is locked by a lock mechanism described later. The bathtub lock release pedal 10 is a pedal for releasing the lock.

The lifting unit 5 is housed in the carriage box 8 so as to be lifted and lowered. On the upper surface of the elevating part 5, a pair of guide rails 11 facing each other in parallel, on which the mounting part 4 is installed, are provided.

A U-shaped frame body (locking portion) 13 is provided on the upper surface of the elevating portion 5. Further, an elevating guide roller 12 is provided in the elevating part 5 so as to elevate vertically when elevating.

On the other hand, a connection member 15 for connecting the carriage unit 3 and the bathtub 2 is attached to the upper edge of one side portion of the bathtub 2. A U-shaped groove (locked portion) 14 corresponding to the frame 13 is formed in the connecting member 15. The frame 13 and the groove 14 constitute a lock mechanism that locks the cart 3 and the bathtub 2 in a connected state.

Further, a pair of guide rails 16 are attached to the bathtub 2 side so as to face the guide rails 11 on the trolley portion 3 side.

With the mounting portion 4 installed on the guide rail 11, the elevating portion 5 is raised to the upper limit height position. Next, with the guide rails 11 of the truck unit 3 and the guide rails 16 of the bathtub 2 facing each other, the truck unit 3 is placed next to the bathtub 2, and the frame 13 of the truck unit 3 is attached to the upper surface of the connecting member 15 on the bathtub 2 side. Ride on and get into the groove 14. Thereby, the trolley|bogie part 3 is connected to the bathtub 2.

This connection state is a state in which the carriage portion 3 and the bathtub 2 are connected at a height position where the mounting portion 4 can be passed between the carriage portion 3 and the bathtub 2 mutually.

In a state where the trolley unit 3 and the bathtub 2 are connected, the mounting unit 4 is moved along the guide rail 11 of the trolley unit 3 onto the guide rail 16 of the tub 2 to move the mounting unit 4 from the trolley unit 3 to the bathtub. Hand over to 2.

The mounting portion 4 transferred onto the guide rail 16 of the bathtub 2 is guided above the bathtub 2 along the guide rail 16. When the mounting portion 4 moves to the center of the guide rail 16, the mounting portion 4 is lowered into the bathtub 2 so that the bather can take a bath in the bathtub 2 while riding on the mounting portion 4.

Next, the elevating part 5 will be described in detail with reference to FIGS. 4 and 5. 4 and 5 are views showing a part of the trolley part 3 and the elevating part 5 in cross section. In FIG. 4, the elevating part 5 is at the lower limit position, and in FIG. 5, the elevating part 5 is at the upper limit position.

The elevating part 5 has a rectangular box shape whose lower part is opened from the side parts 5a and the upper part 5b of the four circumferences, and is housed in the bogie box 8 of the bogie part 3 so as to be elevatable. The elevating part 5 is provided with a guide rail 11 on the upper surface side of its upper portion 5b, and a limit switch 20 is fixed on the lower surface side of the upper portion 5b.

The lift drive mechanism 21 is housed inside the lift 5 and the trolley box 8. Then, the elevating/lowering unit 5 moves up and down between the positions shown in FIG. 4 as the lower limit position and the position shown in FIG. 5 as the upper limit position. The lower side of the elevating part 5 is located inside the bogie box 8. Therefore, even if the elevating part 5 and the mounting part 4 interfere with an obstacle, the elevating part drive mechanism 21 does not interfere with the obstacle.

The elevating/lowering portion drive mechanism 21 includes a direct-acting cylinder 22, a mechanism frame body 24, a moving pulley 25 (rotating body), a cord 26 (transmission portion), and a control unit 28.

The direct-acting cylinder 22 is electrically driven and is fixed to the bottom surface of the carriage unit 3 together with a control unit 28 that controls the direct-acting cylinder 22. A rotating body 25 is rotatably supported at the tip of a rod 22a of the direct acting cylinder 22. One end side of the transmission part 26 is fixed to the bottom surface of the trolley part 3, is wound around the moving pulley 25, and the other end side is fixed to the horizontal frame 24 a that is a part of the mechanism frame body 24. When the direct-acting cylinder 22 operates and the rod 22a expands and contracts, the moving pulley 25 moves up and down. As the movable pulley 25 moves up and down, the mechanism frame 24 moves up and down via the rope 26.

The movable pulley 25 and the cord 26 constitute an amplification mechanism that amplifies the up-and-down movement of the up-and-down unit 5 with respect to the up-and-down stroke of the rod 22a. With this amplification mechanism, the expansion/contraction stroke of the rod 22a can be shortened. Therefore, the seating surface of the mounting portion 4 can be lowered, and the lifting speed of the lifting portion 5 can be increased.

When the elevating pedal 9 is operated to elevate, the control unit 28 drives the direct-acting cylinder 22 according to the operation of the elevating pedal 9 to elevate the elevating part 5.

The separation transmission block 23 is fixed to a vertical frame 24b which is a part of the mechanism frame 24. The separation transmission block 23, together with the limit switch 20, constitutes a separation detection unit that detects separation between the lifting unit 5 and the lifting unit drive mechanism 21. The contact point 20a of the limit switch 20 is separated from the separation transmission block 23 by a certain distance at a lower position thereof.

When the elevating part 5 moves up and down between the lower limit position in FIG. 4 and the upper limit position in FIG. 5 without interference with the elevating part 5, the mechanism frame 24 also moves up and down together with the elevating part 5. In this ascending/descending state, the contact 20a of the limit switch 20 and the separation transmission block 23 are kept separated, and the separation detection signal is not input to the control unit 28 from the limit switch 20.

Next, as shown in FIGS. 6 and 7, when the elevating part 5 cannot descend due to an obstacle being caught in the guide rail 11 or the like during its descending, the elevating part drive mechanism separates from the elevating part. Therefore, only the elevating part driving mechanism 21 descends. When the elevating unit drive mechanism 21 descends for a certain distance, the separation transmission block 23 contacts the contact 20a of the limit switch 20, and the limit switch 20 outputs an ON signal.

This ON signal is input to the control unit 28 as a separation detection signal. The separation detection signal is a signal indicating that the lifting/lowering unit drive mechanism 21 has descended to a position separated from the lifting/lowering unit 5 by a predetermined distance. The control unit 28 controls the descent of the direct-acting cylinder 22 in response to the input of the separation detection signal. As a result, when the elevating unit drive mechanism 21 descends for a certain distance, further descending is suppressed.

The fixed distance can be arbitrarily set depending on the installation position of the separation transmission block 23.

If the fixed distance is set to be short by setting the installation position, the descending distance of the elevating unit drive mechanism 21 becomes short. Therefore, even if the interference of the obstacle is eliminated and the elevating unit 5 descends, the distance that the elevating unit 5 descends to the elevating unit drive mechanism 21 becomes short. Specifically, it is the distance between the lower surface of the upper portion 5b of the elevating part 5 and the upper end surface of the mechanism frame 24. When the above-mentioned fixed distance is short, the elevating part 5 descends, and the impact when the upper part 5b abuts the mechanism frame 24 of the elevating part drive mechanism 21 can be made extremely small. As a result, the safety of the bather on the mounting unit 4 can be maintained high when the interference of the obstacle is eliminated and the elevating unit 5 descends.

Further, in the embodiment, the state of the separation transmission block 23 is detected by the limit switch 20, but the change of the transmission unit 26 that occurs when the lifting unit 5 and the lifting unit drive mechanism 21 are separated is detected by the limit switch 20. You may.

In this case, the change of the transmission section 26 means the deflection, but the tension of the transmission section may be measured to detect the change.

As described above, according to the embodiment, the lifting/lowering unit drive mechanism 21 is provided inside the lifting/lowering unit 5 so as to be separated from the lifting/lowering unit 5 when a load larger than a predetermined amount is applied to the lifting/lowering unit 5 in the direction opposite to the descending direction. There is. Therefore, the elevating section 5 cannot be lowered due to interference such as an obstacle biting into the guide rail 11 while the elevating section 5 is descending, and the elevating section drive mechanism 21 descends and separates from the elevating section 5. Therefore, the obstacle only needs to be weighed by the elevating part 5 and the mounting part 4 and the weight of the bather, whereby damage to the obstacle can be prevented and the safety of transportation can be improved.

Further, when the separation is detected, by raising the elevating part drive mechanism 21 at least until the separation is no longer detected, the interference with the obstacle can be eliminated, and the obstacle can be easily eliminated.

In the embodiment, the direct acting cylinder 22 is an electric type, but may be a hydraulic type, a water pressure type, or an air cooling type. Although not shown, the direct-acting cylinder 22 may be replaced with a screw shaft type telescopic body or a mechanical cylinder such as an actuator that performs telescopic operation. Moreover, it is also possible to raise and lower by a plurality of cylinders, if necessary.

Further, the movable pulley 25 and rope 26 of the temperature descending portion driving mechanism 21, a plurality of movable pulleys may be constituted by rope. Also, a combination of sprockets and chains may be used.

The present invention is not limited to the above-described embodiments, and can be implemented in various other forms without departing from the spirit or the main features thereof. Therefore, the above-described embodiments are merely examples in all respects, and the scope of the present invention is shown in the claims and is not restricted by the text of the specification. Furthermore, all modifications and changes belonging to the scope of the claims are within the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Transport vehicle 2 Bathtub 3 Bogie part 4 Mounting part 5 Elevating part 9 Elevating pedal 11 Guide rail 12 Elevating guide roller 13 Frame (lock part)
14 groove (locked part)
15 connection member 16 guide rail 20 limit switch (separation detection unit)
20a Limit switch contact 21 Elevating part drive mechanism 22 Direct acting cylinder 23 Separation transmission block (separation detection part)
24 Mechanism Frame 25 Rotating Body 26 Transmitter 28 Control Unit

Claims (5)

A carrier vehicle comprising: a trolley part, a mounting part that is separable from the trolley part and that mounts a bather, and an elevating part that elevates and lowers the mounting part,
The elevating part includes an elevating part drive mechanism for elevating the elevating part.
The elevating part drive mechanism supports the elevating part so that it can be separated from the elevating part, and when a load of a predetermined amount or more is applied to the elevating part in a direction counter to the lowering when the elevating part is moving downward. , The elevating part drive mechanism and the elevating part are separated,
The elevating unit, a certain distance, as a separation detecting unit for detecting that it is separated from the elevating unit drive mechanism, comprises a separation transmission block and a limit switch, the entire separation transmission block and the entire limit switch, provided et been without interposing a partition between said predetermined distance can be set arbitrarily by the installation position of the separation transfer block,
Separation type lift car characterized by that. The elevating unit drive mechanism includes a direct acting cylinder and a mechanism frame,
When the direct acting cylinder operates and expands and contracts, the mechanism frame moves up and down,
The elevating part is mounted on the mechanism frame, and the mechanism frame supports the elevating part so as to be separable from below.
The separated lifting/lowering conveyance vehicle according to claim 1. Based on the detection in the separation detecting unit, suppressing the lowering of the elevating unit drive mechanism,
The separation-type lifting/conveying vehicle according to claim 1 or 2. The separation type lifting/conveying vehicle according to claim 3, wherein the elevating unit raises the elevating unit drive mechanism based on the detection by the separation detecting unit until the detecting unit does not detect at least. .. A separation type lifting/conveying vehicle according to any one of claims 1 to 4, and a bathtub,
A bathing device characterized in that