JPH07106852B2 - 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.

By the way, as such a stair lift, for example, there is one disclosed in Japanese Patent Application Laid-Open No. 58-63676. As shown in FIG. 16, the stair climber 200 includes guide rails 203 and 205 attached along the side wall 202 of the stair 201, and the guide rails 203 and 205 have long holes 203a and 205a formed therein. (See FIG. 17). These guide rails 20
Guide rollers 206, 206 are movably disposed in the guide rollers 3, 205.
Is rotatably supported by arms 207, 207 (see FIG. 18). These arms 207, 207 are attached to a support 209 and therefore support 20
9 is movably supported by the guide rails 203 and 205. The opening widths of the long holes 203a and 205a of the guide rails 203 and 205 are set smaller than the vertical dimension (outer diameter) of the guide rollers 206 and 206 as shown in FIG. Does not come out of the long holes 203a and 205a. As shown in FIG. 17, a rack 210 is attached to the lower surface of the guide rail 203, and a drive sprocket 211 attached to the support 209 side is meshed with the rack 210. An electric motor 212 is attached to the support 209, and the drive sprocket 211 is rotated by the electric motor 212. Further, a carrier 215 is attached to the support 209 by a bolt 213, and the casters 216, 2 are attached to the lower surface of the carrier 215.
16,216,216 are attached.

When the stair lift 200 is used, the carrier 215 is attached to the support 209,
A person or the like is placed on the carrier 215 to drive the electric motor 212.
Then, the drive sprocket 211 meshing with the rack 210 is rotationally driven, and the driving force thereof causes the support 20 to rotate.
9 moves up and down the stairs together with the carrier 215. When the stair lift 200 is not used, the fixing by the bolt 213 is released, the carrier 215 is removed from the support 209, and the carrier 215 is stored in a place where it does not interfere with the passage. At this time, the caster 21 is attached to the carrier 215.
6, ..., 216 are attached, so that the stairs 201 to the storage location are moved by hand.

[0006]

By the way, according to the above-mentioned conventional example, when the stair lift 200 is not used,
The carrier 215 is removed, but the support 209 is still attached to the guide rails 203 and 205, and the guide rails 203 and 205 arranged along the stairs 201.
On the other hand, only the support 209 is projected. Therefore, it is an obstacle for people passing by the stairs 201, which is a problem especially during rush hours.

As a method of solving such a problem, the support body 209, the carrier body 215, the guide rails 203,
A method of removing from 205 can be considered. However, in that case, the guide rollers 206, 206 are connected to the guide rails 203,
Although it is necessary to pull out from the 205, as shown in FIG. 19, the guide rollers 206 and 206 are structured so as not to slip out from the long holes 203a and 205a. Therefore,
The support 209 must be moved along the guide rails 203 and 205 to remove the guide rollers 206 and 206 from the end portions of the guide rails 203 and 205.
When mounting the guide rails 203 and 205 on the guide rails 203 and 205, the guide rollers 206 and
It was necessary to insert 206. However, the guide roller 2
06, 206 each guide rail 20 in this way
There is a problem that it is difficult for one person to insert the work into 3,205 and the work takes time.

On the other hand, after using the stair lift 200, it is necessary to remove the carrier 209 from the guide rails 203 and 205 and carry it by hand to its storage location. At that time, the carrier 209 is passed by another person. There was also the problem of getting in the way.

Therefore, according to the present invention, the carrier projecting from the guide device to the side of the stairs can be easily attached and detached, and when carrying the carrier by hand, it is possible to avoid obstructing the passage of other people as much as possible. Moreover, it is an object of the present invention to provide a stair lift that has a small space for storing a carrier.

[0010]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and includes a guide device (6) installed on a stairway (5) and a stairway guided by the guide device (6) ( In a stair lift (1) comprising a carrier (100) for moving up and down 5) and capable of attaching and detaching the carrier (100) to the guide device (6), the guide device (6) includes:
Guide rails (9, 10) are formed, and the carrier (10
0) is engaged with the guide rails (9, 10) 2
A plurality of guide rollers (117, 119) and a roller support device (104) for rotatably supporting at least one guide roller (117) among these guide rollers (117, 119) are provided. Supporting device (104)
However, the guide roller (117) is engaged with the guide rail (9) to regulate the movement trajectory of the transport body (100), and the guide roller (11).
7) is moved to a second position (N) where the guide roller (117) is disengaged from the guide rail (9), and the roller support device (104) is moved to the second position. (N) to disengage the guide roller (117) from the guide rail (9),
00) is removed from the guide device (6).

In this case, the roller supporting device (104)
However, a roller frame (105) that supports the guide roller (117) and is rotatably supported by the main body (102) of the carrier (100), and the carrier (100).
Is engaged with the body (103) of the roller frame (10).
Lock device (L) for fixing 5) to the first position (M)
And, may be provided.

The guide rail (9.10) has a substantially circular cross section, and the guide rollers (117, 1)
19) may have a substantially drum-shaped cross section.

Further, the carrier (100) is provided with a moving base (120) having casters (121, 121, 121, 121) on a lower surface thereof, and is erected on the moving base (120) so that the roller supporting device is provided. A first frame body (101) supporting (104), and an elevating base (, which is movably supported with respect to the first frame body (101) and on which an object to be conveyed is placed when climbing stairs ( 122) and a second frame (1) movably supported by the lifting base (122).
25) and a pair of blocking members (132, 13) rotatably supported on both sides of the first frame body (101).
2) and a pair of transfer plates (160, 161) rotatably supported at both ends of the elevating base (122), wherein the moving base (120) is the elevating base (1).
22), and the first and second frames (101, 125) and the pair of transfer plates (160, 161) are formed on the four sides of the elevating base (122) when climbing the stairs. And the pair of blocking members are erected on the first frame body (101) and the second frame body (125).
And the stairs (5) are not moved up and down, the pair of blocking members (132, 132) are connected to each other.
Is rotated to the side of the frame body (101), and the pair of bridge plates (1
60, 161) is folded toward the elevation base (122) side, and the second frame body (125) is attached to the elevation base (1).
22) side, and the second frame body (125) and the elevating base (122) are folded toward the first frame body (101) side to reduce the projected area of the carrier body (100). Yes, you may.

[0014]

According to the above construction, when the carrier (100) is arranged at a predetermined position and the roller supporting device (104) is set to the first position (M), the guide roller (117) is moved to the guide rail (9). ) Is engaged. Then, the transport body (100) is guided by the guide device (6) and the stairs (5) are guided while the movement trajectory thereof is regulated by the engagement of the guide roller (117) and the guide rail (9).
Move up and down. In addition, the carrier (100) is arranged at a predetermined position and the roller supporting device (104) is moved to the second position (N).
Then, the position of the guide roller (117) moves, and the engagement between the guide roller (117) and the guide rail (9) is released. Therefore, the carrier (100)
Is removed from the guide device (6).

Further, the transfer body (100) is provided with an elevation base (122), a first frame body (101) and a second frame body (1).
25) and moves the elevating base (122) with respect to the first frame (101), and moves the second frame (125) with respect to the elevating base (122). By doing so, the carrier (100) can be folded. At this time, since the moving base (120) for moving the folded carrier (100) is formed smaller than the elevating base (122), the projected area of the folded carrier (100) is small. Get smaller.

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

[0017]

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 is provided with a guide device 6 formed along a stair 5 that connects the lower floor 2 and the upper floor 3 to each other. 6 includes a towing vehicle (moving body) 20 and a car (conveying body) 10
0 is movably supported. And this tow vehicle 2
0 and the car 100 are connected to each other, and the towing vehicle 20
Is driven electrically and moves along the guide device 6, the car 100 is configured to move up and down the stairs 5.

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.

First, the structure of the guide device 6 thus mounted will be described with reference to FIGS.

A recess 8 is formed at a predetermined height on the side of the stairs 5 of the guide device 6 (referred to as the left side in FIG. 2, hereinafter referred to as "front side", and conversely the side wall 5a side is referred to as "back side"). An upper roller guide (guide rail) 9 and a lower roller guide (guide rail) 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 to form a car guide rail portion 11. There is. As shown in FIG. 1, the roller guides 9 and 10 have a constant interval (the vertical distance from the upper roller guide 9 to the lower roller guide 10) from the lower floor 2 to the upper floor 3 of the stairs 5. It is not changed, but this is the guide roller 11
This is because the car (conveyer) 100 supported via 7, 119 moves while maintaining a horizontal posture.
Further, rollers 32a and 35a described later are rail members 1
It is adapted to roll in the groove 6a formed by 7a and 17b. 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.

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 towing vehicle guide rail 17 is formed from the upper floor 3 to the lower floor 2 on the side of the guide device 6 facing the side wall 5a. The guide rails 17 for the towing vehicle are formed at predetermined intervals, and the rail members 17 that form the grooves 6a are formed.
It is composed of a and 17b, and a rail member 17c protrudingly provided in the space S described above.

Further, a plate-shaped member 13 is hung on the lower back side of the handrail portion 12, and this plate-shaped member 13 forms, together with the rail member 17a, a recess opening downward. 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 member 13, and the rail member 17a constitute a chain rack 16. On the other hand, a power supply trolley duct 19 is arranged below the rail member 17c, and a power supply line 19a to which a voltage is applied from a power source (not shown) is housed inside the power supply trolley duct 19. The chain rack 16 and the power supply line 19a described above are also formed along the stairs 5 from the upper floor 3 to the lower floor 2.

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

As shown in FIG. 3, the towing vehicle 20 has a box-shaped main body 20a, and a plate-like member 21 is hung below the main body 20a. Four rollers 22a, 22b, 22c, 22d are rotatably supported on the plate member 21, and the rollers 22a, 22c and the rollers 22b, 22d form a gap corresponding to the plate thickness of the rail member 17c described above. The upper and lower parts are arranged so as to be separated from each other by a predetermined distance. Further, roller support brackets 23a and 23b extend horizontally from the lower part of the main body 20a, and rollers 25a and 25b having a vertical rotation axis are supported by the roller support brackets 23a and 23b (only one side is shown in the figure. ). Then, when the towing vehicle 20 is attached to the guide device 6, the four rollers 22a, ..., 22d described above sandwich the rail member 17c from above and below, and the two rollers 25a, 25b include the rail member 17b and the rail member 17b.
The tow vehicle 20 is movably supported because the tow vehicle 20 is provided between the tow vehicle 20 and c. At this time, the four rollers 2
22d defines the vertical position of the towing vehicle 20, and the other two rollers 25a and 25b define the horizontal position of the towing vehicle 20.

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 this electric motor 30 can be adjusted by inverter control.
The maximum movement speed of 00 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 31a horizontally projects from the gear box 31 toward the guide device 6. Further, a drive sprocket 32 is fixedly mounted on the output shaft 31a, and the drive sprocket 32 is meshed with the chain rack 16 described above. Therefore, when the electric motor 30 is started, the drive sprocket 32 is rotationally driven, and the towing vehicle 20 supporting the drive sprocket 32 moves along the guide device 6 to which the chain rack 16 is attached. As a result, the car 100 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 electric power supply to the electric motor 30 is stopped. Therefore, when the electric power supply to the electric motor 30 is stopped by performing a predetermined operation to stop the car 100, or in the case of a power failure or the like, the brake is actuated to lock the drive sprocket 32, and the towing vehicle 20. Is prevented from moving and stops on the guide device 6. As a result, the car 100 connected to the towing vehicle 20 is also stopped on the guide device 6, and the towing vehicle 20 and the car 100 are stopped.
However, their own weight prevents them from falling 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, when the towing vehicle 20 moves, the driven sprocket 35 rotates. Further, as shown in FIG. 5, a disc 36 for detecting a rotation speed is fixedly provided in a portion inside the main body 20a, and the disc 36 is a driven sprocket 35.
Also, it is configured to rotate integrally with the driven shaft 33. Further, a large number of holes (not shown) are radially formed in the circular plate 36, and photosensors 37 are arranged so as to sandwich the circular plate 36 at positions facing the holes. The number of rotations of the plate 36 is detected.

Further, a safety brake 39 is arranged on the rear end side of the driven shaft 33, and the safety brake 39 is provided.
Is operated when a signal of a predetermined value or more is input from the photo sensor 37. Further, like the brake in the electric motor 30 described above, the safety brake 39 is adapted to operate even when power supply is stopped due to a power failure or the like. And this safety brake 39
When is operated, the rotation of the driven shaft 33 and the driven sprocket 35 is locked, and the movement of the towing vehicle 20 is stopped.

Rollers 32a, 35a are rotatably supported at the tip ends of the drive sprocket 32 and the driven sprocket 35, respectively.
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.

On the front surface of the main body 20a of the towing vehicle 20, a connected portion 40 to which an attachment (connecting device) 170 described later is connected is formed as shown in FIG. The connected portion 40 has an opening 41 formed in the main body 20a, and a shaft member (connected member) 42 is horizontally installed in the opening 41. Then, based on the attachment 170 sandwiching the shaft member 42, the car 1
00 is connected to the towing vehicle 20 to apply thrust and is supported so as not to fall forward.
The photo sensor 13 is provided inside the connected portion 40.
7 is arranged, the shaft member 42 and the attachment 17
The connection state with 0 is monitored (details will be described later with reference to FIG. 9B).

Next, the structure of the car 100 that is movably supported by the above-mentioned guide device 6 and that is lifted up and down the stairs 5 by being given a thrust from the tow vehicle 20 will be described with reference to FIGS.
A description will be given along with item 4.

The car 100 used in this embodiment is constructed so that it can be detached from the guide device 6 and folded. For example, in the assembled state when climbing stairs,
A frame body (first frame body) 101, a frame body (second frame body) 12 from each edge of a substantially rectangular bottom plate (elevation base) 122.
5 and the transfer plates 160 and 161 are erected, and the blocking members 132 and 132 are horizontally installed between the frame bodies 101 and 125 to close the four sides of the bottom plate 122.
An object to be conveyed (for example, a person or luggage) is placed on the bottom plate 122.

The side portion of the frame 101 is shown in FIG.
As shown in (b), brackets (main bodies) 102 and 103 are fixed to the upper and lower parts thereof, and a roller supporting device 104 is rotatably attached to a shaft member 102a fixed to the upper bracket 102. Has been. This roller supporting device 104 is a doglegged roller frame 105.
The roller frame 105 is provided with a lock device L that engages with the lower bracket 103 and fixes the roller frame 105 at a predetermined position (first position) M.

Explaining the lock device L and the like,
As shown in detail in FIG. 7A, the inside of the roller frame 105 is hollow, and the shaft member 106 is fixed to the intermediate portion 105b. One side of the shaft member 106 projects from the roller frame 105, and a guide roller 117 is rotatably supported on the projecting portion. On the other hand, inside the roller frame 105, a lever 107 rotatably supported by a shaft member 106 is arranged, and the lever 107 is provided between the lever 107 and the roller frame 105 in a counterclockwise direction. A biasing spring 109 is interposed. A contact type limit switch 110 is attached to the roller frame 105 so as to detect the one end 107a of the lever 107. On the other hand, the other end 10 of the lever 107
A link member 111 is rotatably supported on 7b, and a link member 112 is pivotally supported on the link member 111. The link member 112 is slidably supported by a guide member 113 attached to the roller frame 105 so that the link member 112 moves in the longitudinal direction of the guide member 113 according to the rotation of the lever 107 and the link member 111. Has become. Further, as shown in FIG. 7B, two sets of link members 115a and 115b are rotatably supported at the tip of the link member 112, and sliders 116a and 116b are further provided at the tips thereof.
Is pivotally supported. Then, these sliders 116
The a and 116b are slidably supported by guide members 108a and 108b attached to the roller frame 105, and slide in the guide members 108a and 108b as the link member 112 moves. . As a result, when the lever 107 is in a state of being biased by the spring 109 to turn on the limit switch 110 (a state shown by a solid line in FIG. 7A), the tip ends of the sliders 116a and 116b are guided. Member 108
When the lever 107 is projected from a and 108b and is rotated against the spring 109 (at the position shown by the chain double-dashed line in FIG. 7A), the slider 116
a and 116b are the link member 111 and the link member 11
2 and the link members 115a and 115b and the like, and the tip portions thereof do not project from the guide members 108a and 108b.

On the other hand, the lower bracket 103 is shown in FIG.
As shown in detail by the two-dot chain line in (b), the roller frame 1
There is a gap slightly wider than the width of 05, and the through holes 103a, 1 into which the sliders 116a, 116b are fitted.
03b is drilled. Further, a shaft member 118 is attached to the lower end portion of the lower bracket 103 as shown in FIG.
Like one of the shaft members 106 described above, one side thereof projects. The guide roller 11 is attached to the protruding portion.
9 is rotatably supported. Guide roller 1 described above
Each of the guide roller 17 and the guide roller 119 has a drum-shaped cross section, and is engaged with the roller guides 9 and 10 having a circular cross section. The guide rollers 117 and 119 are connected to the roller guides 9 and 1.
When 0 is engaged, the end portions of the guide rollers 117 and 119 have a large diameter portion, so that the engagement between them is prevented.

As described above, the tow vehicle 2 is mounted on the upper surface of the bracket 102 that rotatably supports the roller frame 105.
The attachment 170 connected to the connected part 40 of 0 is attached.

This attachment 170 is shown in FIG.
As shown in FIG.
Having a base 172 attached via 71,
A tip portion 172a of the base 172 has a recessed shape so as to engage with the shaft member 42 of the opening 41. Also,
The clamp lever 173 has a tip portion 173 a whose base 1
It is rotatably supported by 72 and its tip 173a.
A claw member 175 is rotatably supported at a position (173b) away from the device by a predetermined distance. Then, when the clamp lever 173 is tilted along the base 172, the tip end portion 175a of the claw member 175 and the tip end portion 173a of the clamp lever 173 come close to each other, and the shaft member 141 is sandwiched with a considerably large force. Therefore, the basket 50
Even if the position is slightly deviated 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 interposed between the shield plate 177a and the holder member 176 (see FIG. 10). This spring coil 17
The lock member 177 is urged by 9 toward the tip thereof.

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. Further, a substantially cross-shaped convex portion 180 is formed at the base end portion of the lock portion 177c, and a substantially cross-shaped concave portion 181 is formed in the holder member 176 so as to engage with the convex portion 180. ing. As described above, since the lock member 177 is biased in the distal direction by the spring coil 179, the convex portion 180 and the concave portion 181 are in a state where no external force acts.
Are engaged with each other to hold the lock member 177 at a predetermined rotation position. 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 attached.
Is also attached to make 90 degrees. Further, the lock portion 177c is formed by bending the front end portion thereof downward, and as the lock portion 177c rotates, the lock portion 177c shown in FIG.
As shown in (b), the base 172 and the claw member 17 are engaged with the cutouts 172 b formed on the side surfaces of the base 172.
It is designed to prevent the mutual movement of five. 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 42 is prevented. It has become. On the other hand, this lock part 177c
In the state where the shield plate 177a is engaged with the cutout portion 172b, the shield plate 177a is rotated and erected, and blocks the optical path of the photosensor 137 attached to the towing vehicle 20. . As a result, it is detected that the car 100 is connected to the towing vehicle 20 via the attachment 170, and the shield plate 177a is connected to the photo sensor 1 by the shield plate 177a.
If the optical path of 37 is not blocked, the photo sensor 13
Predetermined control for safety is performed based on the detection signal from 7.

As described above, the brackets 102, 10
As shown in FIG. 11, a substantially rectangular moving base 120 is fixed to the lower end of the frame body 101 that supports the roller frame 105 and the attachment 170.
The casters 121, 1 are provided on the lower surface of the moving base 120 or the like.
21, 121, 121 are attached so that they can be manually pushed and conveyed in all directions.

A bottom plate 122 is rotatably supported at the lower end of the frame 101 about a shaft member 122a. The bottom plate 122 is formed to have a larger projected area than the moving base 120, and the gas buffer 12 is provided between the moving base 120 and the bottom plate 122.
3 is interposed (see FIG. 6C).

Further, a frame 125 is rotatably supported on the tip edge 122b of the bottom plate 122. The support structure will be described with reference to FIG.
A plate-shaped member 126 is erected on 22b, and a frame 125a of a frame body 125 is attached to the plate-shaped member 126 via a hinge 127. Also, the frame 12
A lock member 129 is rotatably supported at the lower end of 5a, and is locked by a pin 130 projecting from a plate member 126 on the bottom plate 122 side. Further, these frames 125a and the like are covered with an outer plate 131, and an opening 131a is formed at a lower end portion of the outer plate 131 so that the lock member 129 can be rotated.

Then, the lock member 129 and the pin 13
0 is disengaged to fold the frame body 125 toward the bottom plate 122 side, and the bottom plate 122 is folded together with the frame body 125 toward the frame body 101 side, so that the bottom plate is indicated by a chain double-dashed line in FIG. 6C. 122 and the frame 101 are erected on the moving base 120, and the projected area of the car 100 is reduced. The hinge 127 described above has a built-in hydraulic damper, and together with the gas shock absorber 123, shocks due to rotation of the bottom plate 122 and the like are alleviated. In addition, obstacle sensors 140 and 141 are attached to the front and rear ends of the frame 101, and signals from these sensors 140 and 141 are input to a control device (not shown). . Then, when there is an obstacle in the movement path of the car 100, the electric motor 30 is stopped.

Next, the blocking members 132, 132 rotatably supported on both upper side portions 101a of the frame 101 will be described. Since the blocking members 132, 132 have the same structure and the same mounting structure, the blocking members 132 on one side are not provided.
Only will be described with reference to FIGS. 13 and 14.

The blocking member 132 is attached to the upper portion of the frame 101 via a hinge 133. This hinge 1
33 has a plate-shaped member 133a fixed to the frame body 101, and a hinge screw 133b is attached to the plate-shaped member 133a in the vertical direction. This hinge screw 133b
A tubular member 133c is rotatably supported by 180 degrees on the upper part of the cylindrical member 133c, and a member 135 having an L-shaped cross section (hereinafter referred to as "L-shaped member") 135 is mounted on the tubular member 133c.
It is rotatably supported via 36. This L-shaped member 135, as shown in FIG.
Mounted on the 2 side, and thus this blocking member 1
The reference numeral 32 is configured to rotate horizontally with the hinge screw 133b as the rotation center axis and also rotate with the bolt 136 as the rotation center axis. The L-shaped member 13
A pin 139 is provided so as to project from the center of the pin 5, so that it can rotate around the bolt 136.

On the other hand, below the hinge screw 133b, a cylindrical member 133d is rotatably supported similarly to the cylindrical member 133c, and a long hole 138a is formed in this cylindrical member 133d. The locking member 138 is rotatably supported. As shown in detail in FIG. 14, a pin 139 protruding from the central portion of the L-shaped member 135 is fitted into the long hole 138 a, and the L-shaped member 135 is attached to the bolt 1 by the bolt 1.
When the pin 139 is rotated about the pin 36, the pin 139 is also rotated, and the locking member 138 engaged with the pin 139 causes the pin 13 to rotate.
While the rotational position is regulated by 9, the cylindrical member 133
It is designed to rotate around d. At this time, the pin 139 slides in the elongated hole 138a, but when the pin 139 moves to the end of the elongated hole 138a, further rotation of the L-shaped member 135 is blocked and rotation of the blocking member 132 is restricted. It has become so. That is, the locking member 138 and the pin 139 are configured to define the maximum rotational position (hereinafter referred to as “maximum swing position Q”) of the L-shaped member 135, that is, the blocking member 132.

On the other hand, the blocking member 132 has two lock members 150 and 151 that move in the longitudinal direction.
Are arranged, and these locking members 150 and 151 are arranged.
Are linked by a link member 152 that is rotatably supported. Then, when the lock member 150 is moved so that its tip portion projects from the blocking member 132,
The lock member 151 also moves via the link member 152,
The tip portion is also configured to project from the blocking member 132. Engagement portions 153 and 155 are formed at predetermined positions of the frame bodies 101 and 125, and the blocking member 132 is provided.
Holding the lock member 150 at the maximum swing position Q,
When 151 is moved, it engages with the tip end portions thereof, defines the rotational position of the blocking member 132, and closes the space between the frame bodies 101 and 125.

Further, front and rear transfer plates 160, 161 are arranged at both longitudinal edges of the bottom plate 122, and the front and rear transfer plates 160, 161 are supported so as to be openable and closable so as to take an open position and a closed position. ing. Then, these front and rear transfer plates 160, 161 are held in a state of being erected from the longitudinal direction of the bottom plate 122 in the closed state, and the frame members 101, 1
The space between the two is closed, and in the open state, as shown in FIG.
You can get to 0.

The support structure of the front and rear transfer plates 160, 161 will be briefly described. Four guide plates 162, 162, 162 are provided inside the lower portions of the frames 101, 125 supporting the front and rear transfer plates 160, 161. 162 is attached (see FIG. 6B), and these guide plates 162,
Long holes 162a, ... Are formed in each of ... (See FIG. 6D). A pin 160a protruding from a side portion (a portion facing the frame bodies 101 and 125) of the front and rear transfer plates 160 and 161 is fitted into the long hole 162a, and the front and rear transfer plates 160 and 161 rotate. It will be supported freely. On the other hand, these guide plates 162, ...
A groove portion 162b is formed, and a pin 160b which is engageable with the U groove portion 162b is provided on the front plate 160 so as to project therefrom. Therefore, when the pin 160b is engaged with the U groove portion 162b, the front transfer plate 160 is held in an upright state, and the front transfer plate 160 is moved so that the pin 160a moves in the elongated hole 162a. U groove 1
When the engagement with 62b is disengaged, the front transfer plate 160 is rotatable and can be opened as described above.

A stop switch (not shown) is attached to both upper and lower ends of the frame 101 and the guide device 6 so that the car 100 can be stopped in an emergency. An operation box (not shown) can be connected to the car 100 via a cable. When the stair lift 1 is used, a station staff operates the operation box while operating the car 100 while operating the car 100. It is designed to operate.

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

When the stair lift 1 is not used, the car 100 is stored in the storage place in a folded state.

First, the operation of folding the car 100 will be described. The handle (not shown) attached to the blocking member 132 is operated to move the lock member 150. Then, the lock member 151 also moves via the link member 152, and the tip ends of both the lock members 150 and 151 are drawn into the blocking member 132. In this state, the lock members 150 and 151 are disengaged from the engaging portions 153 and 155, and the blocking member 132 is in a rotatable state. Then, the blocking member 132 is rotated about the bolt 136 as a rotation center axis and is horizontally rotated about the hinge screw 133b as a rotation center axis.
32 is disposed at a position along the frame 101. Next, the transfer plates 160 and 161 are folded toward the bottom plate 122. Then, the lock member 129 below the frame body 125 is removed to remove the frame body 1.
While rotating 25, the bottom plate 122 is rotated with respect to the frame body 101. When the frame 125 and the bottom plate 122 rotate, the gas type shock absorber 123 and the like act to slowly fold them. In addition, the roller support device 104
The lever 107 is rotated in the clockwise direction against the spring 109. Then, the link members 111, 11
2, 115a, 115b through sliders 116a, 1
16b are moved, and the tips thereof are guided by the guide member 108.
It does not project from a and 108b. When the roller frame 105 is rotated clockwise around the shaft member 102a in this state, the roller frame 105 moves in the lower bracket 103 and takes the second position N.

The car 100 is stored in the folded state in this way, but when the stair lift 1 is used, for example, a station staff member takes the car 100 out of its storage location and pushes the car 100 in the folded state by hand. It is transported to the lower end of the guide device 6 on the lower floor 2 by transportation.

Next, the towing vehicle 20 is moved to the lower end of the guide device 6, and a car is connected to the towing vehicle 20.
The operation at that time will be described with reference to FIG.

First, the attachment 170 is the towing vehicle 20.
100 so that it comes to the position facing the opening 41 of
Is moved to an appropriate place, and in that state, the clamp lever 173 is tilted to the side of the towing vehicle 20 (direction shown by arrow D in FIG. 15A). Then, the clamp lever 173 rotates around its tip portion 173a, and the claw member 175 also moves as shown in FIG. 15A with the rotation. Then, the clamp lever 173 is further tilted, and FIG.
As shown in FIG. 3, the tip portion 175a of the claw member 175 is attached to the shaft member 4
Engage 2. When the clamp lever 173 is tilted in the opposite direction in this state (FIG. 15C), the clamp lever 173 is
A force is generated in the direction in which the base 172 and the claw member 175 approach each other by the boosting mechanism of. At this time, the towing vehicle 20 to which the shaft member 42 is fixed does not move because it is supported by the guide device 6, and therefore the car 100 to which the attachment 170 is attached moves, and the shaft member 42 moves to the base 172.
And is clamped by the claw member 175. The base 17
Since the height of 2 is originally set to match the height of the shaft member 42, the tip portion 172a of the base 172 and the shaft member 42 can be easily engaged with each other. Further, when the clamp lever 173 is tilted down, the claw member 175 comes into close contact with the base 172 as shown in FIGS. In this state, the lever portion 177b of the lock member 177
When is pulled toward the front side while pulling against the spring 179, the lock portion 177c rotates and engages with the cutout portion 172b of the base 172, and the mutual movement of the claw member 175 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 you release your hand 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 with each other, and the lock member 17
7 rotation is locked.

When the clamp lever 173 is tilted in this way, the car 100 moves in the direction of approaching the guide device 6 by its boosting mechanism.
5 is at the second position N and the guide roller 117 is at a position lower than the regular position, so that it does not interfere with the roller guide 9. Further, as shown in FIG. 6B, the roller guide 10 has its end portion extending straight, so that the roller guide 10 is lower than the mounting height of the lower guide roller 119.
Is lower. Therefore, the guide roller 119 does not interfere with the roller guide 10 even though it remains in the normal position. In this way, any of the guide rollers 117, 119
Also, since it does not interfere with the roller guides 9 and 10, it goes into the recess 8 where the roller guides 9 and 10 are formed.
In this state, when the roller frame 105 is rotated to the first position M and fixed by the lock device L, only the upper guide roller 117 is engaged with the roller guide 9 and the car 100
Will be movably supported along the guide device 6.

Next, the bottom plate 122 and the frame 125 are rotated to assemble the car 100. At this time, the blocking member 132 on the lower floor side and the transfer plate 160 are in an open state, and the blocking member 132 on the upper floor side and the transfer plate 161 are in a closed state (see FIG. 6B). Then, after the user of the stair lift 1 (for example, a wheelchair user) gets into the car 100, the front transfer plate 160 is closed and fixed by a stopper plate. Next, the blocking member 132 is closed. In this case, first the frame 1
The blocking member 132 is rotated in the horizontal direction to a position where 01 and 125 are closed, and at that position, the maximum swing position Q
Swing vertically (see FIG. 14). In this state, since the lock members 150 and 151 in the blocking member 132 can be fitted into the engaging portions 153 and 155 (see FIG. 13), the lock members 150 and 151 are moved to move the blocking members. 132 is fixed to the frames 101 and 125. The basket 100 is now the front and rear transfer plates 160, 161.
Also, the four sides are surrounded by the blocking members 132, 132 and the like.

After that, the operation box connected to the car 100 is operated to start the electric motor 30 in the towing vehicle 20.
When the electric motor 30 is started, its driving force is transmitted to the drive sprocket 32 via the gear box 31, and the drive sprocket 32 is rotationally driven. Since this drive sprocket 32 is meshed with the chain 15 attached to the guide device 6, the towing vehicle 20 itself moves along the towing vehicle guide rail 17. The propulsive force of the towing vehicle 20 is transmitted to the car 100 via the attachment 170, and the car 100 moves while the upper guide roller 117 engages with the roller guide 9. In this state, the lower guide roller 119 is not engaged with the roller guide 10, but
Since the roller guide 10 is formed on the upper right side, the engagement gradually starts when the car 100 moves.

The car 100 moves and both guide rollers 11 move.
When the rollers 7 and 119 are engaged with the roller guides 9 and 10, the weights of the car 100 and the person riding the car 100 are supported by these engaging portions. At this time, the guide roller 117 is biased by the roller guide 9 from below and the guide roller 119 is biased by the roller guide 10 from above. Since the end portions of the guide rollers 117 and 119 are large-diameter portions, the guide rollers 117 and 119 also receive a force in the direction of the rotation axis. Here, the distance between the two roller guides 9 and 10 is not constant from the lower floor 2 to the upper floor 3 of the stairs 5 but changes while maintaining a predetermined relationship, so that the guide rollers 117 and 119 are used. The cage 100 supported by the bottom plate 122 is moved with the bottom plate 122 kept horizontal. At this time, the operator of the operation box (for example, a station employee) moves together with the car 100 that moves upward, and operates the moving speed of the car 100 and the like. Note that the attachment 170 transmits the thrust of the towing vehicle 20 to the car 100, and also receives the falling moment so that the car 100 does not fall in the direction away from the guide device 6.

When the car 100 reaches the upper floor 3, the drive of the electric motor 30 is stopped by the operation box, and the towing vehicle 2
Stop 0 and car 100. Then, after removing the stopper plate, the rear transfer plate 161 is opened, the blocking member 132 on the upper floor 3 side is opened, and then the user is lowered to the upper floor 3.

Then, the operation box is operated again to move the towing vehicle 20 and the car 100 to the lower floor 2 and stop them at the end of the guide device 6. Then, the roller supporting device 10
The lock device L of No. 4 is released, and the roller frame 105 is rotated to the second position N. At this rotational position, the upper guide roller 117 is not engaged with the roller guide 9. Next, the front and rear transfer plates 160 and 161 are folded toward the bottom plate 122, and the blocking members 132 and 132 are rotated to the storage position. Further, the frame 125 and the bottom plate 122 are moved to fold the car 100. Then, the lock member 17
After releasing the lock by 7, the clamp lever 173 is operated to release the connection between the towing vehicle 20 and the car 100. In this state, the car 100 is movable with respect to the guide device 6 and is manually moved to the storage location. 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.

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. Then, 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 in the case of abnormality The safety brake 39 is operated to stop the towing vehicle 20.

As a result, the stair lift 1 according to this embodiment is provided.
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 100 can be removed from the guide device 6 and the towing vehicle 20, so that the car 100 does not interfere with a person passing by the stairs 5. Even if the stairs 1 according to the present embodiment can be installed even if the stairs are narrow enough to allow the car 100 to move up and down, the car 100 moves up and down when the stairs 1 is used, so that no person can pass through, but the stairs elevator. When not in use, the car 100 can be removed and used as a normal pedestrian staircase.

Furthermore, the guide device 6 includes the side wall 5 of the staircase 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.

Furthermore, 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 through 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, since casters 121, ... 121 are attached to the moving base 120 of the car 100,
The basket 100 can be easily pushed and moved. Since the car 100 is folded during this manual movement, it does not obstruct the passage of other people during movement. Further, since the car 100 can be stored in this folded state, the storage space can be small. In the present embodiment, the gas shock absorber 12 is provided between the bottom plate 122 and the moving base 120.
3 is arranged, and the bottom plate 122 and the frame body 125 are connected by a hinge 127 having a hydraulic damper built therein. Therefore, the car 100 can be smoothly folded. Further, since the blocking members 132, 132 are supported by the hinges 133, 133 so as to rotate horizontally, the blocking members 132, 132 can be folded compactly without obstructing the folding of the car 100.

The attachment 170 is attached to the shaft member 42.
Even if the car 100 is slightly deviated from the proper position when the car 100 is engaged, the engagement is performed while moving the car 100 to the proper position by the boosting mechanism of the clamp lever 173.
Therefore, the work of connecting the car 100 to the towing vehicle 20 is simplified. In addition, the attachment 170 has a claw member 1
Locking member 1 for inhibiting mutual movement of 75 and base 172
Attachment 170 because 77 is attached
Is difficult to disengage. 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, the attachment 170
The safety is ensured when the engagement is disengaged.

Further, after the roller frame 105 is moved to the second position N and the car 100 is moved, the roller frame 105 is moved to the first position M again, so that the engagement between the guide roller 117 and the roller guide 9 can be easily performed. Done.

Furthermore, the basket 100 is provided on the basket 100.
Since 0 and 161 are provided, 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 122. Further, since the frame bodies 101 and 125 are erected on both edges in the lateral direction of the car 100, these frame bodies 101 and 125 can be used as handrails when getting on and off. Further, the car 100 has a structure in which both ends in the longitudinal direction are open, and the car 100 is a pass-through system in which one side gets in and the other side gets down. Therefore, the user can go down from the car 100 to the upper floor 3 only by moving the car 100 to a position where the tip of the bridge plate 161 reaches 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.

On the other hand, since stop switches are provided at both ends of the car 100 and the guide device 6, a person other than a station staff can also make an emergency stop of the car 100.

In the stair lift 1 described above,
Sensors such as the obstacle sensors 140 and 141 are arranged at various places, and the operation is stopped at the time of abnormality, so that it is safe for the user of the car 100 and other pedestrians. At the same time, since the moving speed of the car 100 is detected by the photo sensor 37 and the safety brake 39 is activated based on the signal, the driving force of the electric motor 30, for example, due to abnormality of various sensors and control circuits. Is not transmitted to the guide device 6 and the towing vehicle 20 and the car 100 fall due to their own weight, the safety brake 39 is activated. Therefore, the car 100 can be stopped safely, and passengers of the car 100 and people around the car 100 are not injured when the car 100 falls.

Further, the electric motor 30 for moving the car 100
The acceleration and deceleration are controlled by the inverter. Therefore, a smooth start and stop can be achieved.

Furthermore, the electric power of the electric motor 30 can be fed while moving the feeding point which is the contact portion between the feeding line 19a and the feeding 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.

The guide roller 1 is used in the above embodiment.
Although the roller frame 105 is rotated in order to change the position of 17, it is of course not limited to this, and it may be moved by another mechanism. Further, in the above-described embodiment, the position of only the guide roller 117 is changed, but the position is not limited to this, and the other guide roller 119 may be moved.

In the above-described embodiment, the car 10
Although the method of performing the desorption of 0 on the lower floor 2 has been described, the present invention is not limited to this, and the guide device 6 may be extended to the upper portion to detach the car 100 on the upper floor 3.

[0082]

As described above, according to the present invention,
Since the carrier can be attached to and detached from the guide device, the carrier can be removed from the guide device when the stair lift is not used. Therefore,
The carrier does not get in the way of people who pass the stairs.

Further, since the roller supporting device for supporting the guide roller is constructed to be movable, the carrier can be brought close to the guide device from the front and easily engaged.
Therefore, the work of connecting the carrier and the guide device is simple, and even one person can perform the work.

Further, by constructing the carrier so that it can be folded, it is possible to avoid as much as possible the obstruction of passage even when the carrier is moved from the stairs to the storage location. Further, by storing the carrier in a folded state, the space for storage can be reduced.

[Brief description of drawings]

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

2 is an end 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, FIG.
(C) is a left side view of the same, and (d) is a figure which shows the structure of the support part of a front-back transfer board.

7A is a partial cross-sectional view showing the structure of a roller supporting device, and FIG. 7B is a cross-sectional view taken along line CC of FIG.

FIG. 8A is a front view showing the structure of the attachment,
(B) is DD sectional drawing of (a).

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

FIG. 10 is a vertical cross-sectional view showing structures of a lock member and a holder member.

FIG. 11 is a sectional view taken along the line EE of FIG.

12 is a detailed cross-sectional view of the F portion of FIG.

13A is a side view showing a blocking member and its mounting structure, and FIG. 13B is a sectional view taken along line GG of FIG. 13A.

FIG. 14 is a sectional view taken along the line HH of FIG.

FIG. 15A is a diagram showing a state in which a clamp lever is raised, and FIG. 15B is a diagram showing a state in which the tip portion of the clamp lever is further engaged with a shaft member;
(C) is a figure which shows the process which returns a clamp lever to the original and clamps, (d) is a figure which shows the state at the time of clamp end.

FIG. 16 is a perspective view showing a conventional example.

FIG. 17 is a detailed view showing a mounting structure of a carrier.

FIG. 18 is a cross-sectional view showing a mounting structure for a carrier.

FIG. 19 is a view showing a support structure of a guide roller.

[Explanation of symbols]

 1 stair lift 2 lower floor 3 upper floor 5 stair 5a side wall 5b stair tread 6 guide device 9 guide rail (upper roller guide) 10 guide rail (lower roller guide) 11 car guide rail 12 handrail 16 chain rack 17 tow vehicle Guide rail 19 Power supply trolley duct 19a Power supply line 20 Traction vehicle 29 Power supply member 30 Electric motor 32 Drive sprocket 35 Driven sprocket 36 Disc 37 Photo sensor 39 Safety brake 40 Connected part 100 Carrier (basket) 101 First frame ( 104) Roller support device 105 Roller frame 117 Guide roller 119 Guide roller 120 Moving base 121 Caster 122 Elevating base (bottom plate) 125 Second frame body (frame body) 132 Blocking member 170 Attachment L Lock device M First position N Second Location

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Chikayuki Higashi, 197, Kumasaka-cho, Kaga-shi, Ishikawa Daido Industry Co., Ltd. (72) Yoshihiro Kitamura, 197, Kumasaka-cho, Kaga-shi, Ishikawa 197 (72) Inventor Emi Nishino 197, Kumasaka-cho, Kaga-shi, Ishikawa Daido Industry Co., Ltd. (72) Inventor Yoshimasa Yamamoto 1-6-5 Marunouchi, Chiyoda-ku, Tokyo East Japan Railway Company (72) Inventor Hideo Kikuchi 1-6-5 Marunouchi, Chiyoda-ku, Tokyo Within East Japan Railway Company (72) Inventor Yuo Shimada 1-6-5 Marunouchi, Chiyoda-ku, Tokyo Within East Japan Railway Company (72) Inventor Hidenori Suzuki 1-6-5 Marunouchi, Chiyoda-ku, Tokyo East Japan Railway Company (72) Inventor Hiroshi Aoki Chiyo, Tokyo 1-6-5 Marunouchi-ku, East Japan Railway Company (72) Inventor Takahiro Shimizu 1-6-5 Marunouchi, Chiyoda-ku, Tokyo East Japan Railway Company (56) Reference JP-A-58- 63676 (JP, A) JP 58-21366 (JP, A) Actually developed 59-22276 (JP, U)

Claims (4)

[Claims] 1. A guide device installed on a stairway, and a carrier for moving up and down the stairs by being guided by the guide device,
Further, in a stair lift capable of attaching and detaching the carrier to and from the guide device, a guide rail is formed on the guide device, and the carrier is two or more guide rollers engaged with the guide rail, and these guide rollers. A roller supporting device for rotatably supporting at least one guide roller among the guide rollers, the roller supporting device engaging the guide roller with the guide rail and restricting a movement locus of the carrier. 1
A position and a second position for moving the guide roller to release the engagement between the guide roller and the guide rail,
Moreover, the roller support device is displaced to the second position to release the engagement between the guide roller and the guide rail, and the carrier is removed from the guide device. 2. The roller supporting device supports the guide roller and is rotatably supported by the main body of the carrier, and the roller frame is engaged with the main body of the carrier to fix the roller frame to the first frame. The stair lift according to claim 1, further comprising a lock device that is fixed at one position. 3. The stair lift according to claim 1, wherein the guide rail has a substantially circular cross section and the guide roller has a substantially hourglass cross section. 4. A moving base having casters on its lower surface, a first frame body standing upright on the moving base to support the roller supporting device, and the transport body with respect to the first frame body. An elevating base that is movably supported and on which an object to be conveyed is placed when climbing stairs, a second frame body that is movably supported by the elevating base, and both side portions of the first frame body. A pair of blocking members that are rotatably supported, and a pair of bridge plates that are rotatably supported at both ends of the elevating base, wherein the moving base is formed smaller than the elevating base; At the time of ascending / descending, the first and second frame bodies and the pair of bridge plates are erected at four end portions of the elevating base, and the pair of blocking members make up the first frame body and the first frame body. Two
When closing the stairs with the frame body and not going up and down the stairs, the pair of blocking members are rotated toward the first frame body, and the pair of transfer plates are folded toward the lift base side, The second frame is folded toward the elevating base, and the second frame and the elevating base are folded toward the first frame to reduce the projected area of the carrier. The stair lift according to any one of claims 1 to 3.