JP2520216B2 - Stair lift - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stair lift installed along a stair and for lifting a stair by carrying a person or luggage, and more particularly to a stair lift suitable for use in public facilities such as stations.

[0002]

2. Description of the Related Art Recently, public facilities are being used by people with physical disabilities, and it is particularly desired to use stairs such as a station while sitting on a wheelchair. In a large facility with many users, it is possible to install an elevator or the like exclusively for people with disabilities, but the elevator and the like are expensive and
The installation space is large and the installation work takes a long time.

Therefore, in public facilities, especially in facilities that are not frequently used, attention is paid to a stair lift that is inexpensive, has a small installation space, and is easy to construct.

Various stair lifts have been proposed in the past.

FIG. 12 shows, by way of example, JP-A-60-
This is disclosed in Japanese Patent No. 87184. The stair lift 100 disclosed in this publication includes guide rail portions 103, 103 attached to a side wall 102 along the stairs 101, and the rail portions 10 thereof are provided.
A rack 105 is provided between 3 and 103. Further, the guide rail portions 103, 103 have a substantially L-shaped cross section.
A letter-shaped carrier 106 is movably supported, and a drive sprocket 109 that is rotationally driven by a motor 107 is attached to the carrier 106. The drive sprocket 109 is meshed with the rack 105 on the side wall side and starts the motor 107 to drive the drive sprocket 10.
By rotating 9 the carrier 106 is moved up and down.

Further, FIG. 13 shows another example of Japanese Patent Laid-Open No. 58-58.
It shows the one disclosed in Japanese Patent Publication No. 63676. The stair lift 200 disclosed in this publication is a stair 201.
Guide rail part 20 attached to the side wall along the
3, 203, one of the guide rail portions 203
A rack 205 is formed on the lower surface of the. The guide rails 203, 203 have support members 204.
Is movably supported, and a drive sprocket (not shown) rotationally driven by a motor (not shown) is attached to the support 204. The drive sprocket meshes with the side wall side rack 205, and the support 204 is moved up and down by activating a motor to rotationally drive the drive sprocket. This support 20
4 is detachably attached to the carrier 206 by a bolt 210.
Is attached, and the carrier 206 is moved up and down based on the activation of the motor.

[0007]

By the way, in the case of the conventional example of FIG. 12 described above, since the carrier 106 is attached to the guide rail portions 103 and 103 and protrudes to the stairs side, it obstructs a person passing through the stairs. There was a problem that became.

Further, in the case of the conventional example shown in FIG.
6 is usually removed from the support 204,
Since the support body 204 projects to the side of the stairs, there is a problem in that it also interferes with people who pass the stairs during the rush hour.

[0009] Therefore, an object of the present invention is to provide a stair lift that does not interfere with a person passing through the stairs by eliminating the protrusion from the guide device to the staircase when the stair lift is not used.

[0010]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and provides a guide device (6) installed along a side wall (5a) of a stair (5) and the guide device. A moving body (20) which is supported and moved along the guide device, and a carrier body (50) which is detachably connected to the moving body and is guided by the guide device to move up and down stairs.
And a guide device (6) fixed to form a space (S) with the side wall (5a) and formed on the side facing the side wall. The moving body (2) has a rail portion (17) and an elongated meshing member (16) extending along the rail portion.
0) is arranged on the side of the space (S) and the electric motor (3)
0) and a rotary meshing member (32) driven by the electric motor and meshing with the long meshing member (16),
The space side is moved by driving the electric motor (30) along the rail part (17), and the carrier (5
0) is connected to the moving body (20) and is moved on the side opposite to the side facing the side wall (5a) of the guide device (6). .

In this case, the guide device (6) is fixed on the stair tread (5b) and the side wall (5a).
Has a second rail portion (11) formed in a recess (8) on the side opposite to the side opposite to, and the carrier (50) is provided on the second rail portion (11). It may be movably supported by the guide device (6) via a guide roller (66, 66) to be guided.

Further, the long meshing member is a chain rack (16) formed on the side facing the side wall,
Further, it is preferable that the rotary meshing member is a drive sprocket (32) meshed with the chain rack and rotationally driven by the electric motor.

Further, the guide device (6) has a feeder line (19a) arranged along the side wall (5a) on the side facing the side wall (5a), and the moving body (20).
However, a power supply member (29) for slidingly contacting the power supply line (19a) and supplying electricity to the electric motor (30) may be provided.

Still further, the movable body (20) is meshed with the elongated meshing member (16) so that the movable body (20).
Driven rotary body (35) rotated by the movement of the driven body, rotational speed detection means (36, 37) for detecting the rotational speed of the driven rotary body (35), and the rotational speed detection means (36, 3).
And a braking device (39) for stopping the moving body (20) based on a signal from 7).

[0015]

Based on the above construction, the moving body (20) is supported by the rail portion (17) attached to the side of the guide device (6) facing the side wall (5a) of the stairs (5), and Long meshing members such as chain racks (16)
Then, the rotary meshing member (32) that rotates based on the drive of the electric motor (30) meshes with each other, and moves on the side of the space (S) formed by the guide device (6) and the side wall (5a). When the carrier (50) is attached to the moving body (20), the carrier (50) is on the front side of the guide device (6), that is, the side opposite to the side wall (5a). Will be placed in this carrier (5
After placing a wheelchair or the like on (0), the moving body (20) is moved along the rail portion (17), the carrier (50) moves in front of the guide device (6), and the stairs ( Go up and down along 5).

After using the stair lift (1),
The moving body (20) and the carrier (50) together with the stairs (5)
Of the moving body (20) to release the connection (40, 140) of the moving body (20) to release the connection between the moving body (20) and the carrier (50). Then, the transport body (50) whose connection is released is stored in a place where it does not interfere with the passage. In this state, the moving body (20) is located in the space S on the side of the staircase side wall (5a) of the guide device (6), does not make a business trip to the staircase side, and does not interfere with the passage of stairs.

The reference numerals in parentheses refer to the drawings, but do not limit the configuration in any way.

[0018]

Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, the stair lift 1 according to the present embodiment includes a guide device 6 formed along a stair 5 connecting the lower floor 2 and the upper floor 3, and the guide device 6 is provided. 6 includes a towing vehicle (moving body) 20 and a car (conveying body) 50.
Is movably supported. And this towing vehicle 20
The car 50 is connected to each other, and the car 50 is configured to move up and down the stairs 5 when the towing vehicle 20 is electrically driven and moves along the guide device 6.

This guide device 6 is, as shown in FIG.
The leg portion 7 is attached along the side wall 5a based on the leg portion 7 being fixed on the stair tread surface 5b at a predetermined distance from the stair side wall 5a by a drill anchor (not shown).
Since the guide device 6 is attached in this way, a space S is formed between the guide device 6 and the side wall 5a.

On the other hand, the stairs 5 side (referred to as the left side in FIG. 2) of the guide device 6 attached in this manner.
On the contrary, the side wall 5a side is referred to as "back side". ), A recess 8 is formed at a predetermined height, and an upper roller guide 9 and a lower roller guide 10 are attached to the upper surface and the lower surface of the recess 8, respectively. Each of these roller guides 9 and 10 has a substantially circular cross section, and these roller guides 9 and 10 and the recess 8 are formed along the stairs 5 so that a car guide rail portion (second rail) is formed. Part) 11
Is composed. The roller guides 9 and 10 are shown in FIG.
As shown in, the distance (the vertical distance from the upper roller guide 9 to the lower roller guide 10) is the lower floor 2 of the stairs 5.
From the upper floor 3 to the upper floor 3, the cage 50 is supported by the guide rollers 66, 66.
This is so that the robot can move while maintaining a horizontal posture.

The height of the guide device 6 is 800 m.
A handrail portion 12 for a person who goes up and down the stairs 5 is formed on the upper end portion thereof.

Further, as shown in detail in FIG. 3, a guide rail (rail portion) 17 for the towing vehicle is formed on the side of the guide device 6 facing the side wall 5a, and the guide rail 17 for the towing vehicle is formed. Are rail members 17a and 17b that form the groove 6a based on being arranged at a predetermined interval, and a rail member 17c that is provided to project in the space S formed by the guide device 6 and the side wall 5a described above. It consists of

Further, a plate-shaped member 13 is provided on the lower back side of the handrail portion 12, and the plate-shaped member 13 forms a recess which opens downward together with the rail member 17a. A chain 15, which is a roller chain, is disposed in the recess formed by the plate member 13 and the rail member 17a. The chain 15 allows a predetermined amount of play and prevents the chain 15 from falling. Is held.
That is, the chain 15, the plate-shaped member 13, and the rail member 17a form a chain rack (long meshing member) 16.

On the other hand, a power supply trolley duct 19 is disposed below the rail member 17c, and a power supply line 19a to which a voltage is applied from a power source (not shown) is disposed inside the power supply trolley duct 19. There is. In addition, the handrail portion 12, the chain rack 16, the guide rail 17 for the towing vehicle described above.
(That is, the rail members 17a, 17b, 17c), the power supply line 19a, etc. are all along the stairs 5 from the upper floor 3 to the lower floor 2
It is formed over.

Next, the towing vehicle (moving body) 20 that moves along the above-described guide device 6 will be described with reference to FIGS.

The towing vehicle 20 has a box-shaped main body 20a, and a plate-like member 21 is hung below the main body 20a. The plate-like member 21 has four rollers 22a,
22b, 22c, 22d are rotatably supported,
The rollers 22a and 22c and the rollers 22b and 22d are vertically arranged at a predetermined distance so as to have a gap corresponding to the plate thickness of the rail member 17c described above. Roller support brackets 23a and 23b extend horizontally from the lower portion of the main body 20a toward the guide device 6, and rollers 25a and 25b having vertical rotation axes are supported by the roller support brackets 23a and 23b. (Only one side is shown). 22d sandwiches the rail member 17c from above and below, and the two rollers 25a and 25b hold the rail member 17b and the rail member 17c in a state where the towing vehicle 20 is supported by the guide device 6.
It is arranged to be placed between That is, the main body 20a of the towing vehicle 20 is movably supported by these six rollers 22a, ... 22d, 25a, 25b, and the four rollers 22a ,. , Also two rollers 25a, 25b
Defines the horizontal position of each towing vehicle 20. Further, rollers 32a and 35a, which will be described later, are adapted to roll in the groove portion 6a formed by the rail members 17a and 17b. By this, the towing vehicle 2
0 is supported in an upright state so as not to fall in either the front or back direction.

A tubular member 26 is provided below the main body 20a.
As shown in FIG. 3, the tubular member 26 supports a power feeding member 29 that is in sliding contact with the above-described power feeding line 19a. The cord 27 from the power feeding member 29 passes through the tubular member 26 and is arranged up to the main body 20a.

On the other hand, inside the main body 20a, as shown in detail in FIG. 4, an electric motor 30 is installed in an upright state.
Electricity is supplied via a, the power feeding member 29, and the cord 27. The drive speed of the electric motor 30 can be adjusted by controlling the inverter.
The maximum moving speed of 0 is 11 m / min, and slow start and slow down stop are possible.
A gear box 31 is attached below the electric motor 30, and an output shaft 31 a horizontally projects from the gear box 31 toward the guide device 6. Further, a drive sprocket (rotary meshing member) 32 is fixedly mounted on the output shaft 31a.
Is meshed with the chain rack 16 described above. Therefore, when the electric motor 30 is started, the drive sprocket 3
The towing vehicle 20, which is rotatably driven by 2 and supports the drive sprocket 32, is configured to move along the guide device 6 to which the chain rack 16 is attached.
As a result, the car 50 connected to the towing vehicle 20 moves up and down the stairs 5 along the guide device 6. A brake (not shown) is provided in the electric motor 30 described above, and the brake is activated when the power supply to the electric motor 30 is stopped to stop the rotation of the drive sprocket 32. There is. Therefore, the basket 50
When a predetermined operation is performed to stop the electric power supply to the electric motor 30 or when there is a power failure, this brake is activated and the drive sprocket 32 is locked, and the towing vehicle 20 moves. Are stopped and stopped on the guide device 6. As a result, the car 50 connected to the towing vehicle 20 is also stopped on the guide device 6, and the towing vehicle 20 and the car 50 are
The weight of them prevents them from dropping along the guide device 6.

On the other hand, in the main body 20a of the towing vehicle 20, a driven shaft 33 is arranged at the same height as the output shaft 31a of the gear box 31 and in parallel with the output shaft 31a ( The driven shaft 33 is rotatably supported by the main body 20a (see FIGS. 4 and 5). This driven shaft 3
A driven sprocket 35 is fixed to the front end portion of the drive shaft 3, and the driven sprocket 35 is also meshed with the chain rack 16 like the drive sprocket 32. Therefore, the driven sprocket (driven rotor) 35 rotates when the towing vehicle 20 moves. Also, the main body 2
As shown in FIG. 5, a disk (rotational speed detecting means) 36 for detecting a rotational speed is fixedly provided in the portion 0a, and the disk 36 is integrally formed with the driven sprocket 35 and the driven shaft 33. It is designed to rotate. Further, a large number of holes (not shown) are radially formed in the disc 36, and photosensors (rotational speed detecting means) 37 are sandwiched between the photosensors 37 at positions facing the holes. Is arranged to detect the rotation speed of the disk 36.

Further, a safety brake (braking device) 39 is provided on the rear end side of the driven shaft 33, and the safety brake 39 operates when a signal of a predetermined value or more is input from the photo sensor 37. It is supposed to do. Also,
The safety brake 39 has a spring (not shown) that is biased in the direction of operation of the brake and, like the brake in the electric motor 30 described above, operates even when power supply is stopped due to a power failure or the like. It is like this. Then, when the safety brake 39 is activated, the rotation of the driven shaft 33 and the driven sprocket 35 is locked, and the towing vehicle 2
The movement of 0 is stopped.

The drive sprocket 32 and the driven sprocket 35 have rollers 32a, 35a rotatably supported at the tip ends thereof.
The a and 35a roll in the groove 6a formed by the rail members 17a and 17b described above. As a result, the towing vehicle 20 is supported in an upright state so as not to fall in either the front or rear direction, and the meshing between the chain rack 16 and both sprockets 32, 35 is ensured.

Further, as shown in FIG. 4, a rectangular opening (connecting portion) 40 is provided on the front surface of the main body 20a of the towing vehicle 20.
Is formed in the side wall of the opening 40 and the hole 40
a and 40a are formed. These holes 40a, 4
An attachment 70 is engaged with 0a so as to connect the car 50 to the towing vehicle 20 as described later.

Next, the structure of the car 50 that moves up and down the stairs 5 along the guide device 6 described above is shown in FIG.
A description will be given along with (b) and (c).

The car 50 is provided with a bottom plate 51 having a substantially rectangular shape, and both end edges 51a of the bottom plate 51 in the lateral direction,
Ladder-shaped frames 52 and 53 are erected on 51a, respectively. The upper corners 52a of these frame bodies 52, 53,
Blocking bars 55 and 56 are rotatably supported by 53a, respectively, and the tip ends of the blocking bars 55 and 56 are locked to the other upper corners 52b and 53b. Then, the blocking bars 55 and 56 supported by the respective frame bodies 52 and 53 are connected to the upper corner portions 52b and 53b facing each other.
The cage 50 closed at all sides is formed by locking the cage 50 at the bottom. In addition, on the back side of the above-mentioned bottom plate 51, four casters 59, 59, 5 are provided at its four corners.
9, 59 are attached so that they can be carried by hand. In addition, both longitudinal edges 51 of the bottom plate 51
Front and rear transfer plates 60 and 61 are rotatably supported by b and 51b, respectively, so that a person in a wheelchair can get into the car 50 in an open state shown in FIG. 6C. Clasps 62, 62 are attached to the front and rear transfer plates 60, 61 and the frame bodies 52, 53 so that the front and rear transfer plates 60, 61 can be locked to the frame bodies 52, 53 for upright storage. It is configured.

Further, brackets 63a and 63b are fixedly provided on the upper and lower portions of the side of the frame 52, and a roller frame 65 having a dogleg shape is provided between the brackets 63a and 63b. Is installed. A guide roller 66 is rotatably supported on the intermediate portion 65b of the roller frame 65, and the lower bracket 63b is provided.
Also, a guide roller 66 is rotatably supported. Each of these guide rollers 66, 66 has an hourglass shape,
It is engaged with the roller guides 9 and 10 having a substantially circular cross section,
The roller guides 9, 10 receive the weight of the car 50 and the like as well as the horizontal load.

Further, an attachment 70 is attached to the upper surface of the upper bracket 63a.

As shown in detail in FIG. 7B, this attachment 70 has a channel member 71 fixed to the upper bracket 63a.
Is a pair of plate-like members 72, which face each other at a predetermined interval.
72 is attached. A columnar shaft member 73 is attached between the plate-shaped members 72, 72,
An attachment body 76 is rotatably supported on the shaft member 73 via a spherical bearing 75.

As shown in the figure, the attachment body 76 has a substantially L-shaped vertical cross section, and a through hole 76a is formed in its longitudinal direction. In addition, the tip of the attachment body 76 has a through hole 76b in the lateral direction.
And the through hole 76b is communicated with the through hole 76a to form a substantially T-shaped cavity. Further, as shown in FIG. 7A, a guide groove 82 is formed in the center of the attachment body 76. This guide groove 82
Has a vertical groove portion 82a formed along the through hole 76a and connecting the through hole 76a and the outside.
A pair of lateral groove portions 82b and 82c are formed from both end portions of a toward the side portion of the attachment body 76.
In this way, the guide groove 82 is formed of the vertical groove portion 82a and the pair of horizontal groove portions 82b and 82c, and is formed so that the horizontal cross section has a U shape.

On the other hand, a slider 77 is movably fitted in the through hole 76a, and a lever 78 projects from the slider 77 in the radial direction. This lever 78
Protrudes to the outside of the attachment body 76 through the guide groove 82 described above, and rotates around the axis of the slider 77 to move in the lateral groove portions 82b and 82c (see FIG. 7).
(C) The middle arrows F1 and F2) or the inside of the vertical groove portion 82a can be moved in the longitudinal direction of the attachment body 76 (see middle arrows G1 and G2 in FIG. 7C). When the lever 78 is rotated in the directions of arrows F1 and F2, the slider 77 is also rotated in those directions, and when the lever 78 is moved in the directions of arrows G1 and G2, the slider 77 is also moved in the through hole 76a. ing.

On the other hand, two link members 79, 79 are rotatably supported at the tip of the slider 77,
Stopper members 80, 80 are rotatably supported at the tips of the link members 79, 79. A spring 81 is interposed between these stopper members 80, 80, and the stopper members 80, 80 are slidably supported in the above-described through holes 76b. The tip of the attachment body 76 in which these stopper members 80, 80 are built is formed smaller than the opening 40 so that it can be inserted into the opening 40 of the towing vehicle 20 described above. 80 and 80 are sized so that they can be fitted into the holes 40a and 40a formed in the opening 40.

Therefore, when the lever 78 is positioned at the tip of the vertical groove 82a or the lateral groove 82b formed continuously from the tip, the slider 77 moves to the tip of the attachment body 76 in the through hole 76a. Then, the link members 79, 79 are pushed out, and the stopper members 80, 80 connected to the link members 79, 79 are attached to the attachment body 76.
It is designed to be projected from the side part of. On the other hand, when the lever 78 is positioned at the rear end portion of the vertical groove portion 82a or the horizontal groove portion 82c formed continuously at the rear end portion, the slider 77 moves to the rear end side of the attachment body 76 in the through hole 76a. And pulling in the link members 79, 79 to connect the link members 79, 79 to the stopper members 80, 80.
Does not protrude from the side of the attachment body 76.

A stop switch (not shown) is attached to the frame 52 so that the car 50 can be stopped in an emergency. Further, a car display panel 57 is provided above the frame body 52 so as to appropriately display the operation status of the car 50. In addition, 50 baskets
An operation box (not shown) can be connected to the car via a cable. When the stair lift 1 is used, the station staff can operate the car box 50 by operating the operation box while running alongside the car 50. It has become. Furthermore, stop switches (not shown) are attached to both upper and lower ends of the guide device 6 so that the car 50 can be stopped in an emergency.

Next, the operation of the above embodiment will be described.

When the stair lift 1 described above is not used, the car 50 is removed from the guide device 6 and the towing vehicle 20, and the removed car 50 is stored in an appropriate place. Therefore, only the guide device 6 fixed along the side wall 5a and the towing vehicle 20 arranged between the guide device 6 and the side wall 5a are permanently installed on the stairs 5.

Now, when using the stair lift 1,
For example, a station employee takes out the car 50 from its storage location and carries it by hand to the lower end of the guide device 6 on the lower floor 2.
Then, the guide rollers 66, 66 supported by the roller frame 65 and the bracket 63b of the car 50 are engaged with the upper roller guide 9 and the lower roller guide 10. As a result, the car 50 is movably supported by the guide device 6.

Next, with the lever 78 of the attachment 70 attached to the car 50 set in the lateral groove portion 82c, the attachment 70 is gripped, and the tip end portion of the opening portion 40 formed in the towing vehicle 20 is gripped. The through hole 76b of the attachment body 76 is aligned with the holes 40a, 40a on the towing vehicle 20 side. Then, the lever 78 in the lateral groove portion 82c is rotated in the direction of arrow F2 in FIG. 7C to be positioned in the vertical groove portion 82a, and further moved in the direction of arrow G2. Then, the slider 77 moves to the tip side of the attachment body 76 in the through hole 76a and pushes out the link members 79, 79. Along with this, the stopper members 80, 80 connected to the link members 79, 79
Is projected from the side portion of the attachment body 76 and fitted into the holes 40a, 40a on the towing vehicle 20 side, and the car 50 is connected to the towing vehicle 20. With this connection, the towing vehicle 20
Is transmitted to the car 50 via the attachment 70, and the car 50 is supported by the tow vehicle 20 so as not to fall. By further rotating the lever 78 in the direction of arrow F1 in FIG. 7C,
The slider 77 is locked so that the connection cannot be disconnected.

Next, the front passing plate 60 after opening the blocking bar 56 of the car 50 is tilted to the front side so that the user of the stair lift 1 (for example, a wheelchair user) can get in the car 50. After the user gets into the car 50, the front passing plate 60 is closed and fixed by the stopper plate 62, and the blocking rod 56 is closed. In this state, the front and rear transfer plate 6
The 0, 61 and the blocking bars 55, 56 are all closed, and the operation box connected to the car 50 is operated to start the electric motor 30 in the towing vehicle 20. When the electric motor 30 is activated, the drive sprocket 32 is rotationally driven via the gear box 31. Since the drive sprocket 32 is meshed with the chain 15 attached to the guide device 6, the tow vehicle 20 itself starts moving along the tow vehicle guide rail 17 along the stairs 5 from the lower floor 2 to the upper floor 3. . At this time, the operator of the operation box (for example, a station clerk) moves together with the ascending car 50 and operates the moving speed of the car 50 and the like. When the car 50 reaches the upper floor 3, the drive of the electric motor 30 is stopped by the operation box, and the towing vehicle 20 and the car 50 are stopped. Then, the stopper plate 62 is removed, the rear transfer plate 61 is opened, the blocking bar 55 is further opened, and then the user is lowered to the upper floor 3.

Since the driven sprocket 35 is meshed with the chain 15 arranged in the guide device 6,
When the towing vehicle 20 moves, the driven sprocket 35 rotates. The rotation of the driven sprocket 35 causes the driven shaft 3 to rotate.
3 is transmitted to the rotation speed detecting disc 36 fixed to the driven shaft 33. A large number of holes are radially formed in the disc 36, and photosensors 37 are disposed at positions facing the holes so as to sandwich the disc 36. The rotation speed is detected by the photo sensor 37. The photo sensor 37 is the rotation speed of the disk 36,
That is, a pulse having a frequency proportional to the moving speed of the towing vehicle 20 is generated. When a control circuit (not shown) mounted in the towing vehicle 20 compares the pulse measured by the photo sensor 37 with the reference pulse (delayed timed pulse generated from the measured pulse) and determines that the abnormality is detected. First, the safety brake 39 is operated to stop the towing vehicle 20.

Thus, the stair lift 1 according to the present embodiment.
Can be attached only by fixing the guide device 6 to the tread surface 5b of the existing stairs 5 with anchor bolts or the like. Therefore, unlike the case of fixing to the side wall shown in the conventional example, it is not necessary to consider the strength of the side wall when installing the stair lift 1, and the stair lift 1 can be installed on any stairs. In addition, large-scale civil engineering and construction work such as when installing an elevator or escalator is not required, and incidental work is extremely small, and the construction cost and the construction period for installation can be small.

When the stair lift 1 is not used, the car 50 can be removed from the guide device 6 and the towing vehicle 20, so that the car 50 does not interfere with a person passing by the stairs 5. Even if the stairs 1 are narrow enough to allow the car 50 to be lifted and lowered, the stair lift 1 according to the present embodiment can be installed. When the stair lift 1 is used, the car 50 moves up and down so that no person can pass through, but the stair lift is not allowed. When not in use, the car 50 can be removed and used as a normal pedestrian staircase.

Further, the guide device 6 includes the side wall 5 of the stairs 5.
Since it is fixed along a and its occupied area is extremely small,
It is also possible to minimize the fact that the guide device 6 itself interferes with the passage when the stair lift 1 is not used.

Further, since the towing vehicle 20 is housed between the side wall 5a and the guide device 6, it does not interfere with a person passing by the stairs 5. Further, since no protrusion is formed on this guide device 6 either, it does not hinder the flow of people even during congestion. Further, since the handrail portion 12 is formed at the upper end of the guide device 6, a person who goes up and down stairs can use it. Furthermore, the roller guides 9 and 10 are
Since it is housed in the recess 8 formed in the guide device 6 and does not project to the outside, it does not interfere with a person passing through the stairs and there is no fear of soiling clothes.

On the other hand, casters 5 are provided on the bottom plate 51 of the car 50.
Since the cages 9 ... 59 are attached, the car 50 can be easily pushed by hand.

Further, since the lever 78 of the attachment 70 has a boosting capability, even if the position of the car 50 is slightly deviated from the proper position, by tilting the lever 78, the car 50 can be moved to the normal position. Movement and attachment 7
The connection of 0s is performed at the same time, and the work at the time of connection is simple regardless of the weight and size of the car 50. Further, the work for removing the car 50 from the tow vehicle 20 is similarly simplified.

Further, since the car 50 is provided with the transfer plates 60 and 61, the wheelchair user can get on and off by his / her own power even though there is a step between the floor surface and the bottom plate 51. Further, the frame body 52,
Since 53 is erected, these frame bodies 52 and 53 can be used as handrails when getting on and off. In addition, basket 5
No. 0 has a structure in which both ends in the longitudinal direction are open, and is a through-passage system in which one side gets in and the other side gets down. Therefore, the user only needs to move the car 50 to a position where the tip of the bridge plate 61 reaches the upper floor 3.
It is possible to descend from 0 to the upper floor 3, and the total length of the guide device 6 can be shortened. As a result, it is possible to prevent the upper end of the guide device 6 from protruding into the upper floor 3 and obstructing passage. Furthermore, the user of the car 50 can grasp the driving status by the car display panel 57.

On the other hand, stop switches are provided at both ends of the car 50 and the guide device 6, so that a person other than a station staff can also make an emergency stop of the car 50.

Further, the moving speed of the car 50 is detected by the photo sensor 37 and the safety brake 39 is operated based on the signal, so that various sensors, control circuits and the like are abnormal, for example, the electric motor 30. Drive force of the vehicle is not transmitted to the guide device 6 and the towing vehicle 20 and the car 5
When 0 falls due to its own weight, the safety brake 39 is activated. Therefore, the car 50 can be stopped safely, and the passengers of the car 50 and the car 50 can be stopped.
People around the car will not be injured when the car 50 falls.

Further, the electric motor 30 for moving the car 50 is adapted to be accelerated and decelerated by inverter control. Therefore, a smooth start and stop can be achieved.

Furthermore, the electric power supply of the electric motor 30 can be performed while moving the power supply point which is the contact portion between the power supply line 19a and the power supply member 29. Therefore, the electric motor 30
Unlike connecting directly to the power supply with a single cord,
There is no fear that the cord will be entangled with the movement of the towing vehicle 20.

Next, a second embodiment of the present invention will be described. The structure of the stair lift according to the present embodiment is the same as that of the above-described embodiment except the attachment 70 and the opening 40 of the towing vehicle 20. Therefore, duplicate description is omitted, and the attachment 170 and the towing vehicle according to the present embodiment are omitted. The opening portion (connecting portion) 140 and the like of 20 will be described with reference to FIGS. 8 to 11.

In the present embodiment, a shaft member 141 is horizontally installed in the opening 140 of the towing vehicle 20, and an attachment 170 is connected to the shaft member 141 to connect the car 50.
Is engaged with the towing vehicle 20.

This attachment 170 is shown in FIG.
As shown in, the spherical bearing 1 is attached to the upper bracket 63a.
Having a base 172 attached via 71,
The tip portion 172a of the base 172 has a recessed shape so as to engage with the shaft member 141 of the opening 140. The tip portion 173 a of the clamp lever 173 is rotatably supported by the base 172.
A claw member 175 is rotatably supported at a position (173b) apart from the 3a by a predetermined distance. Then, when the clamp lever 173 is tilted along the base 172, the tip end portion 175 a of the claw member 175 and the clamp lever 173.
And the tip end portion 173a of the shaft member 173a come close to the shaft member 141, and the shaft member 141 is sandwiched with a considerably large force. Therefore, even if the position of the car 50 is slightly displaced from the proper position,
By tilting the clamp lever 173, the movement of the car 50 to the normal position and the clamping of the shaft member 141 described above are performed at the same time.

On the other hand, the upper surface of the claw member 175 is shown in FIG.
As shown in FIG. 10A and FIG. 10, a holder member 176 having a through hole 176a is attached, and a lock member 177 is fitted in the through hole 176a.
A shield plate 177a is eccentrically attached to the tip end side of the lock member 177, and a spring coil 179 is wound between the shield plate 177a and the holder member 176 (see FIG. 10). The lock member 177 is biased toward the tip thereof by the spring coil 179.

On the other hand, on the rear end side of the lock member 177, a lever portion 177b and a lock portion 177c are formed so as to project in the radial direction. A substantially cross-shaped convex portion 180 is formed at the base end of the lock portion 177c, and a substantially cross-shaped concave portion 181 is formed on the holder member 176 so as to face the convex portion 180. .
As described above, since the lock member 177 is biased in the distal direction by the spring coil 179, the convex portion 108 and the concave portion 181 engage with each other when the external force does not act, and the lock member 177 is moved to a predetermined rotational position. It is designed to hold. The shield plate 177a and the lever portion 177b are attached so as to form an angle of 90 degrees with each other, and the lever portion 177b and the lock portion 177c are also attached to each other at 90 degrees.
It is attached so as to make a degree. Also, the lock unit 1
The tip portion of the 77c is bent downward, and the cutout portion 1 formed on the side surface of the base 172 is shown in FIG. 9B as the lock portion 177c rotates.
It engages with 72b and prevents mutual movement of the base 172 and the claw member 175. In this way, when the lock portion 177c is engaged with the cutout portion 172b, mutual movement of the base 172 and the claw member 175 is prevented, so that the engagement of these with the shaft member 141 is prevented. It has become. On the other hand, in the state where the lock portion 177c is engaged with the cutout portion 172b, the shield plate 177a is in a state of being erected while rotating, and the optical path of the photosensor 137 attached to the towing vehicle 20 is set to the optical path. It is supposed to be closed. As a result, the basket 50 has the attachment 1
When it is detected that the vehicle is connected to the towing vehicle 20 via 70, and the shield plate 177a does not block the optical path of the photo sensor 137, a predetermined safety signal is output based on the detection signal from the photo sensor 137. Is controlled.

Next, the operation of this embodiment will be described with reference to FIG.
It is explained along.

First, as in the above-described embodiment, the car 50
Is conveyed to a position close to the towing vehicle 20. Then, with the attachment 170 facing the opening 140 of the towing vehicle 20, the clamp lever 173 is tilted toward the towing vehicle 20 side (the direction indicated by the arrow D in FIG. 11A). Then, the clamp lever 173 rotates around the tip portion 173a, and the claw member 175 also moves as shown in FIG. 11A in accordance with the rotation. And further clamp lever 1
73 is turned down, and the tip end portion 175a of the claw member 175 is engaged with the shaft member 141 as shown in FIG. 11 (b). If the clamp lever 173 is tilted in the opposite direction in this state (see FIG. 11).
(C), the base 172 and the claw member 175 clamp the shaft member 141 with a large force by the boosting mechanism of the clamp lever 173. The height of the base 172 is originally the shaft member 1
Since the height is set to match the height of 41, the tip portion 172a of the base 172 and the shaft member 141 can be easily engaged with each other. Furthermore, when the clamp lever 173 is tilted,
As shown in FIGS. 9A and 9B, the claw member 175 is the base 1
The state is in close contact with 72. In this state, when the lever portion 177b of the lock member 177 is pulled toward the front while pulling against the spring 179, the lock portion 177c rotates and engages with the cutout portion 172b of the base 172, and the pawl member 1
The mutual movement of 75 and the base 172 is prohibited. Further, a shield plate 177a at the tip of the lock member 177 is erected to block the optical path of the photo sensor 137. When the hand is released from the lever portion 177b, the lever portion 177b moves with the biasing force of the spring 179, the convex portion 180 and the concave portion 181 are engaged, and the rotation of the lock member 177 is locked.

As a result, regardless of the weight of the car 50, the connection to the towing vehicle 20 can be performed by a simple operation. Further, the attachment 170 has a claw member 175.
And a lock member 177 for inhibiting mutual movement of the base 172.
Is attached, it is difficult to disengage the attachment 170. Further, the rotation position of the lock member 177 is detected by the photo sensor 137, and when the lock member 177 is not at the predetermined rotation position, various controls for safety are performed. Therefore, safety is secured when the attachment 170 is disengaged. Furthermore, even if the car 50 is slightly displaced from the proper position when the attachment 170 is engaged with the shaft member 141, the engagement is performed while moving the car 50 to the proper position by the boost mechanism of the clamp lever 173. . Therefore, the work of connecting the car 50 to the towing vehicle 20 is simplified.

In the above embodiment, the car 5
Although the desorption of 0 is performed on the lower floor 2, the present invention is not limited to this, and the guide device 6 may be extended to the upper level to detach the car 50 on the upper floor 3.

[0070]

As described above, according to the present invention,
By fixing the guide device on the tread of the stairs, the stair lift can be attached to the existing stairs. Therefore, large-scale civil engineering and construction work such as when installing an elevator or an escalator is not required, and incidental work is extremely small, and the construction cost and the construction period for installation can be small.

Further, since the carrier which moves up and down along the guide device is constructed so as to be detachable, the carrier can be removed and stored in a place where it does not obstruct the passage when the stair lift is not used. . Therefore, the carrier does not get in the way of people who pass the stairs.

Further, the guide device is arranged along the side wall of the stairs, and the minimum necessary space is provided between the guide device and the side wall. Therefore, the area occupied by the guide device on the stairs is also reduced, and it is possible to considerably avoid the obstruction of traffic. Also,
Since the moving body that moves the transport body is disposed between the guide device and the side wall and does not project to the stairs side from the guide device, the moving body does not obstruct the passage. Further, a rotating meshing member such as an electric motor and a drive sprocket is arranged on the moving body, and electricity is supplied to the electric motor to move the moving body.However, since the moving body is arranged on the space side, for example, a power supply line and a power feeding It is possible to prevent the electric supply means such as a member from being exposed on the stairs side so as not to hinder the passage of traffic and prevent the risk of electric shock. further,
Since the rail portion of the guide device and the long meshing member such as the chain rack are arranged on the space side, the rail portion and the long meshing member are not exposed to the stairs side, and an unspecified number of unspecified large numbers such as stairs at a station are not exposed. There is a possibility of mischief due to the fact that it is used by people, but when the air can is caught between the rail and the long engagement member,
It is possible to reduce the inconvenience that the moving body becomes unmovable. Further, when the guide device has the second rail portion and the carrier has the guide roller guided by the second rail portion, the carrier is supported by the second rail portion, and thus the carrier is supported by the carrier. The weight is directly supported by the guide device on the second rail portion, and the traction force for vertically moving the carrier acts on the moving body. It is possible to prevent a large load due to the weight from being applied, and even though the second rail portion is arranged in the recess and is located on the side opposite to the side wall of the stairs, the second rail portion is also , It does not interfere with traffic. Further, when the long engagement member is a chain rack, the chain rack can be easily installed in conformity with the shape of the stairs regardless of the long facility along the stairs, and the chain rack and the drive sprocket are Based on the above, it is possible to allow a sufficient meshing relationship, and it is possible to maintain a reliable meshing even in a complicated staircase shape such as a landing.

Further, by detecting the moving speed of the carrier by the rotation speed detecting means and appropriately activating the braking device based on the signal, the moving speed of the carrier is equal to or higher than a predetermined value due to abnormality of various devices. Even if it becomes, the carrier can be stopped safely.

On the other hand, a power supply line is provided in the guide device,
Further, by disposing a power supply member that slides in contact with the power supply line and supplies electricity to the electric motor on the side of the moving body, the electric power is smoothly supplied to the electric motor. Therefore, unlike the case where the electric motor and the power source are directly connected by a single cord, there is no fear that the cord is entangled with the movement of the moving body.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a stair lift according to the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is a vertical cross-sectional view showing a detailed structure of a towing vehicle and a guide device that supports the towing vehicle.

FIG. 4 is a front view showing the detailed structure of the towing vehicle.

5 is a sectional view taken along the line BB of FIG.

6A is a plan view of a car, FIG. 6B is a front view thereof, and FIG. 6C is a left side view thereof.

7A is a plan view showing the structure of the attachment according to the first embodiment, FIG. 7B is a left side view thereof, and FIG. 7C is a perspective view showing a guide groove and the like.

FIG. 8A is a front view showing the structure of the attachment according to the second embodiment, and FIG. 8B is a sectional view taken along line DD of FIG.

9A is a side view showing a detailed structure of a base body, a claw member and the like of the attachment according to the second embodiment, and FIG. 9B is a view showing a state in which the lock member of FIG.

FIG. 10 is a sectional view showing an internal structure and the like of a holder member.

FIG. 11A is a diagram showing a state in which a clamp lever is raised, and FIG. 11B is a diagram showing a state in which the tip portion of the clamp lever is further engaged with a shaft member.
FIG. 6C is a diagram showing a process of returning the clamp lever to the original position and clamping, and FIG. 7D is a diagram showing a state at the end of clamping.

FIG. 12 is a diagram showing a first conventional example.

FIG. 13 is a diagram showing a second conventional example.

[Explanation of symbols]

 1 stair lift 2 lower floor 3 upper floor 5 stairs 5a side wall 5b stair tread 6 guide device 9 upper roller guide portion 10 lower roller guide portion 11 second rail portion (car guide rail portion) 12 handrail portion 16 long meshing member (Chain rack) 17 Rail part (guide rail for towing vehicle) 19 Power feeding trolley duct 19a Power feeding line 20 Moving body (towing vehicle) 29 Power feeding member 30 Electric motor 32 Rotating meshing member (driving sprocket) 35 Driven rotating member (driven sprocket) 36 Rotational speed detection means (disc) 37 Rotational speed detection means (photo sensor) 39 Braking device (safety brake) 40 Connecting part (opening) 50 Conveyor (car) 66 Guide roller 70 Attachment 140 Connecting part (opening)

 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Chikayuki Higashi, 197, Kumasaka-cho, Kaga, Ishikawa Prefecture Daido Industry Co., Ltd. (72) Inventor, Yoshihiro Kitamura, 197, Kumasaka-machi, Kaga, Ishikawa Prefecture Daido Industry (72) Inventor Emi Nishino 197, Kumasaka-cho, Kaga-shi, Ishikawa Prefecture Daido Industry Co., Ltd. (72) Inventor Yoshimasa Yamamoto 1-6-5 Marunouchi, Chiyoda-ku, Tokyo Within East Japan Railway Company ( 72) Inventor Hideo Kikuchi 1-6-5 Marunouchi, Chiyoda-ku, Tokyo East Japan Railway Company (72) Inventor Yoshio Marunouchi 1-6-5, Marunouchi Tokyo Chiyoda-ku East Japan Railway Company (72) Inventor Hidenori Suzuki 1-6-5 Marunouchi, Chiyoda-ku, Tokyo Within East Japan Railway Company (72) Inventor Hiroshi Aoki Chiyoda-ku, Tokyo Marunouchi 1-6-5 East Japan Railway Company (72) Inventor Takahiro Shimizu Marunouchi 1-6-5 Marunouchi Tokyo Chiyoda-ku East Japan Railway Company (56) Reference JP-A-58-63676 (JP) , A) Japanese Unexamined Patent Publication No. 3-172295 (JP, A) Actual Development Sho 55-67065 (JP, U) Japanese Patent Sho 59-7630 (JP, B2)

Claims (5)

(57) [Claims] 1. A guide device installed along a side wall of a stairway, a movable body supported by the guide device and moved along the guide device, and detachably connected to the movable body. A stair lift equipped with a carrier that is guided by a guide device to move up and down stairs, wherein the guide device is fixed so as to form a space between the side wall and a side facing the side wall. A rail formed and a long meshing member extending along the rail, wherein the moving body is disposed on the space side, an electric motor, and the long meshing member driven by the electric motor. A rotary meshing member that meshes with, and is configured to move along the rail portion on the space side by driving the electric motor, wherein the transport body is connected to the moving body, and Opposite to the side facing the side wall A stair climber that moves on the opposite side. 2. The guide device is fixed on a stair tread, and has a second rail portion formed in a recess on the side opposite to the side wall, and the carrier. The stair lift according to claim 1, wherein the stair lift is movably supported by the guide device via a guide roller guided by the second rail portion. 3. The long meshing member is a chain rack formed on the side facing the side wall, and the rotary meshing member is meshed with the chain rack and is rotationally driven by the electric motor. The stair lift according to claim 1 or 2, which is a drive sprocket. 4. The guide device disposes a power supply line along the side wall on a side facing the side wall, and the moving body slides into contact with the power supply line to supply electricity to the electric motor. The stair lift according to any one of claims 1 to 3, further comprising a power supply member for supplying the power. 5. A driven rotary member, wherein the movable body is meshed with the elongated meshing member and rotated as the movable body moves, and a rotation speed detection means for detecting a rotational speed of the driven rotary member. The stair lift according to any one of claims 1 to 4, further comprising: a braking device that stops the moving body based on a signal from the rotation speed detection means.