JP2875939B2 - Stair climber - 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 carrying people or luggage to move up and down the stair, and more particularly to a stair lift suitable for use in public facilities such as a station.

[0002]

2. Description of the Related Art In recent years, public facilities have been used for persons with physical disabilities. In particular, it is desired to use stairs in stations and the like while being in a wheelchair. In large facilities with many users, it is possible to install elevators and the like dedicated to the disabled, but these elevators are expensive and
The installation space is large and the installation work takes a long time.

[0003] In public facilities, in particular, facilities that are not frequently used, stair climbers that are inexpensive, have a small installation space, and are easy to construct have attracted attention.

[0004] Such a stair climber is disclosed in, for example, Japanese Patent Application Laid-Open No. 58-63676. As shown in FIG. 13, the stair climber 200 includes guide rails (guide devices) 203 and 205 attached along side walls 202 of the stairs 201.
1 includes a straight portion A formed along the tread surface and a horizontal portion B formed from the top of the staircase 201a to the upper floor 220. In addition, these guide rails 2
Slots 203 and 205 are formed with long holes 203a and 205a (see FIG. 14), and a rack 210 is attached to the lower surface of the guide rail 203.

On the other hand, the moving body 209 is
A pair of arms 207, 207 extended to the side of 3,205
(See FIG. 15) and guide rollers 206, 206 rotatably supported by the distal ends of the arms 207, 207 (see FIG. 14).
The moving body 209 is supported by the guide rails 203 and 205 so as to be freely movable based on the arrangement of the guide rails 203 and 205 in the guide rails 203 and 205. In addition, moving body 2
A driving sprocket 211 and an electric motor 212 are attached to 09, and the moving body 209 is configured to move up and down stairs based on the driving of the driving sprocket 211 meshed with the rack 210. Further, the transport body 215 is attached to the moving body 209 by the bolt 21.
3 are attached detachably. Casters 216, 216, 216, 2
16 are attached.

In the above configuration, when the stair climber 200 is not used, the carrier 215 is removed from the moving body 209 on the lower floor 219 and is stored in a place where it does not obstruct traffic. Note that the movement to the storage location at this time is performed by manual transfer since the casters 216,...

When, for example, a person in a wheelchair is transported from the lower floor 219 to the upper floor 220 using the stair climber 200, the moving body 209 is electrically driven to reach the lower ends of the guide rails 203 and 205. At the same time, the transport body 215 is taken out of the storage location and moved to the mobile body 209 by manual transport. Next, the transport body 215 is attached to the moving body 209 with bolts 213. After a person gets into the transfer body 215, the electric motor 21
2, the moving body 209 first rises along the linear portion A of the guide rails 203 and 205, and furthermore, moves horizontally along the horizontal portion B at substantially the same height as the floor of the upper floor 220. To the upper floor 220.

[0008]

Conventionally, the attachment and detachment of the carrier 215 and the moving body 209 have been performed only on the lower floor 219. The reason is as follows. That is, when attaching and detaching the carrier 215, the carrier 215 needs to be on the floor. Therefore, in the above-mentioned prior art, the upper floor 220
Guide rails 203,
The carrier 215 that has moved along the horizontal portion B of 205
Needs to land on the floor of the upper floor 220. However, the carrier 2 when moving the horizontal portion B
The height of the stairs 2 varies slightly depending on the weight of a person or the like mounted on the carrier 215.
In order to avoid the danger of the carrier 215 getting caught on the uppermost section 201a of the first section 01, the horizontal portion B is set so that the carrier 215 moves a safe distance from the uppermost section 201a. There is a need to. Therefore, the transport body 215 that has reached the upper floor 220 is floating from the floor surface.

As described above, the attachment / detachment of the carrier 215 can be performed on the upper floor 22.
0, the stair lift 200 could not withstand use where the storage location of the carrier 215 could only be installed on the upper floor 220.

Accordingly, the present invention provides a stair climbing machine which enables a carrier to be attached and detached on the upper floor and prevents the carrier from contacting the uppermost step of the stairs to achieve a smooth movement of the carrier. The purpose is to do.

[0011]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has a guide device (6) fixedly mounted on a stair (5), and a guide device (6) movably supported by the guide device. The moving body (2) electrically driven along the guide device
0) and a transporter (100) detachably connected to the moving body and moving up and down the stairs along the guide device, wherein the guide device is connected to the guide device from a lower floor to an upper floor. Forming a guide rail portion (11) having an upper roller guide (9) and a lower roller guide (10), projecting forward from a lower floor to an upper floor of the carrier (100), and an upper guide roller (117); A lower guide roller (119) is provided, and the upper guide roller (117) is urged against the upper roller guide (9) from below by a moment based on gravity acting on the transporting body, and rolled together with the lower guide. The roller (119) is urged against the lower roller guide (10) from above to roll and contact with the lower roller guide (10), and the transport body is guided by the guide rail portion (11) and moved by the movable body (20). apparatus 6) The upper-floor end (6a) is further extended from the uppermost step (5c) of the stair tread (5b), and is disposed on the upper-floor floor (3a). The slopes (9a, 10a) are provided on the guide rail (11) in (2), and the stair tread side of the guide rail is raised (h ₁ > h).
₂ ).

In this case, the upper and lower roller guides (9, 1)
0), the gap at the upper floor side end is
In the horizontal state of 0), it may be formed wider than the gap between the upper guide roller (117) and the lower guide roller (119).

The upper and lower roller guides (9, 10)
, Upper end portions (9b, 10b) may be formed in pointed shapes.

Further, the guide rail section (11) at the upper floor side end (6a) lowered at the slope section (9a, 10a) has a structure in which the transporting body (100) has an upper floor floor (3).
It is preferable that the height is such that the landing is made at a).

[0015]

According to the above construction, when the stair climber (1) is in use, the carrier (100) on which the electric wheelchair or the like is placed is placed.
Is pulled by the electric drive of the moving body (20) while being guided by the guide device (6). At this time, the upper guide roller (117) projecting forward of the carrier is urged against the upper roller guide (9) from below by the moment based on the gravity acting on the carrier to roll contact with the lower roller guide (9), and the lower guide is driven. The roller (119) urges the lower roller guide (10) from above to roll and contact it, and by changing the interval between the upper and lower roller guides, always keeps the transport body (100) horizontal regardless of the stairs and the horizontal state. Can be maintained in state. Therefore, even on the upper floor made of a horizontal plane, the carrier (100) is held in a horizontal state, and the stair tread side is raised, so that the carrier (100) projects forward of the carrier and moves up and down with the vertical guide rollers (11).
7) and (119), the conveyance body (100) does not interfere with the uppermost step of the stairs, and the conveyance body (100) is provided on the upper floor (3a) on the guide rail (11). Gently descend by the slopes (9a, 10a), and land on, for example, the upper floor (3a).

When the stair lift (1) is not in use, the carrier (100) is removed from the moving body (20) and the carrier is stored in a predetermined place. The upper and lower roller guides (117) and (1)
19) can be performed on the lower floor because of the arrangement protruding in front of the carrier, and of course, since the guide device (6) is extended on the upper floor (3a). , Can be performed even on the upper floor.

Reference numerals in parentheses refer to the drawings, but do not limit the configuration.

[0018]

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

As shown in FIG. 1, the stair climbing machine 1 according to the present embodiment includes a guide device 6 fixed to a stair 5 connecting the lower floor 2 and the upper floor 3 to each other. A tow vehicle (moving body) 20 is movably supported;
Are driven electrically along the guide device 6. A car (transportation body) 100 is detachably connected to the towing vehicle 20.
Is configured to move up and down the stairs 5 based on the fact that the towing vehicle 20 is driven electrically and moves along the guide device 6.

First, the structure of the guide device 6 will be described with reference to FIG.
3 will be described with reference to FIG.

As shown in FIG. 2, the guide device 6
The leg 7 is fixed along the side wall 5a at a predetermined distance from the side wall 5a by a drill anchor (not shown), and is attached along the side wall 5a.
A towing vehicle 20 is disposed in a space S formed between the guide device 6 and the side wall 5a.
Numeral 0 moves in the space along the guide device 6. In addition, the upper end 6 of the guide device 6
As shown in FIG. 1, a is further extended from the uppermost step 5c of the stair tread 5b and is disposed on the upper floor 3a. The car guide rails 11 are formed over three (hereinafter, the side on which the rails 11 are formed is referred to as “front side” of the guide device 6 and the opposite side is referred to as “back side”). As shown in FIG. 2, the car guide rail portion 11 has a concave portion 8, and the upper and lower surfaces of the concave portion 8 have an upper roller guide 9 and a lower roller Guides 10 are respectively attached. These roller guides 9 and 10 have guide rollers 1 rotatably supported.
The car 100 is movably supported via 17, 119 (details will be described later). By the way, as shown in FIG. 1, these roller guides 9 and 10 have an interval (a vertical distance from the upper roller guide 9 to the lower roller guide 10) extending from the lower floor 2 to the upper floor 3 of the stairs 5. Is not constant but is changing.
The reason for this is that the car 100 supported via 7, 119 moves while maintaining the horizontal posture. Further, roller guides 9, 1 at the upper floor side end 6a of the guide device 6 are provided.
As shown in detail in FIG.
a, 10a are formed, and are set so that the stair tread surface 5b side becomes higher (h ₁ > h ₂ ). Here, the heights (for example, h ₂ ) of the end portions 9b and 10b of the roller guides 9 and 10 are set so that the guide rollers 117 and 119 are engaged with the car 100 placed on the upper floor 3a. Is set to In addition, these guide rollers 117, 11
9 is adapted to be disengaged from end portions 9b and 10b of the roller guides 9 and 10,
Are formed in a pointed shape (for example, a conical shape) to engage (insert) the guide rollers 117, 119.
Can be easily performed. The height of the guide device 6 is set to 800 mm to 900 mm, and a handrail portion 12 for a person who goes up and down the stairs 5 is formed at the upper end from the upper floor 3 to the lower floor 2. Have been.

On the other hand, as shown in FIG. 2, on the back side of the guide device 6, a rail member 17b projecting horizontally from the space S described above is disposed, and a rail member 17b is provided on the rail member 17b. 17a is provided upright. Note that these rail members 17a and 17b are formed from the upper floor 3 to the lower floor 2. In addition, a chain rack 16 is disposed on the lower and back side of the handrail unit 12. This chain rack 16 forms a recess on the lower back side of the handrail section 12,
It is constituted by fitting a roller chain into the recess. Further, a power supply trolley duct 19 is provided below the rail member 17b, and a power supply line (not shown) to which a voltage is applied is accommodated in the power supply trolley duct 19. The above-mentioned chain rack 16 and trolley duct 19 are also formed along the stairs 5 from the upper floor 3 to the lower floor 2.

Next, the structure of the towing vehicle (moving body) 20 will be described with reference to FIGS.

As shown in FIG. 2, the towing vehicle 20 has a box-shaped main body 20a, and a plate-shaped member 21 is hung below the main body 20a. Four rollers 22a, 22b, 22c, and 22d are rotatably supported by the plate member 21, and when the towing vehicle 20 is mounted on the guide device 6, these rollers 22a,. It is designed to be pinched. Also, the main body 20
a from the lower part on the front side of the roller supporting brackets 23a, 23
b extend horizontally, and these brackets 23
Rollers 25a and 25b are rotatably supported by the rollers a and 23b, respectively. When the towing vehicle 20 is attached to the guide device 6, these rollers 25a, 25
b rolls on the side surface of the rail member 17a and the side surface of the rail member 17c. Further, a tubular member 26 is hung below the main body 20a, and a power supply member 29 is fixed to the tubular member 26 in a swingable manner. This power supply member 2
Numeral 9 has a contact that is in sliding contact with a power supply line in the trolley duct 19, and a cord 27 from the power supply member 29 is provided to the main body 20a through the inside of the tubular member 26.

On the other hand, as shown in FIG. 4, an electric motor 30 is mounted in an upright state inside the main body 20a, and the electric motor 30 is provided with the above-described power supply line, power supply member 29 and cord 27. It is driven by electric power supplied via the power supply. In addition, this electric motor 30
The drive speed can be adjusted by inverter control, and the maximum moving speed of the car 100 is 15 m / m.
in, and a slow start and a slow down stop are possible. A gear box 31 is attached below the electric motor 30, and an output shaft 31 a of the gear box 31 projects toward the guide device 6. Further, the drive shaft 31 is connected to the output shaft 31a.
2 is fixed, and the drive sprocket 32 is meshed with the chain rack 16 described above. Therefore,
When the electric motor 30 is started, the driving sprocket 32 is driven to rotate, and the towing vehicle 2 supporting the driving sprocket 32 is driven.
0 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. Note that a brake (not shown) is provided in the electric motor 30 described above, and this brake operates when the supply of electric power to the electric motor 30 is stopped. Therefore, a predetermined operation is performed to stop the car 100 and the electric motor 30 is stopped.
When the power supply to the vehicle is stopped or in the event of a power failure, the brake is actuated to lock the drive sprocket 32, and the towing vehicle 20 is prevented from moving, and the guide device 6 is stopped.
It is designed to stop on. As a result, the towing vehicle 20
Is also stopped on the guide device 6,
The towing vehicle 20 and the car 100 do not fall along the guide device 6 due to their own weight.

On the other hand, a driven shaft 33 is rotatably supported by the main body 20a of the towing vehicle 20 at the same height as the output shaft 31a of the gearbox 31 and in parallel with the output shaft 31a. I have. At the front end of the driven shaft 33, a driven sprocket 35 meshed with the chain rack 16 is fixedly provided like the driving sprocket 32, and the driven sprocket 35 is driven by the driven rotation of the towing vehicle 20. It is supposed to. Note that the rotation speed of the driven shaft 33 is detected by a sensor (not shown), and the moving speed of the towing vehicle 20 can be detected based on the detected rotation speed. A safety brake (not shown) is provided at the rear end of the driven shaft 33.
The safety brake operates in response to a speed abnormality signal from a sensor. Further, the safety brake operates even when the power supply is stopped due to a power failure or the like, similarly to the brake in the electric motor 30 described above. And when this safety brake is activated,
As described above, the movement of the towing vehicle 20 is stopped.

Further, a connected portion 40 is formed on the front surface of the towing vehicle main body 20a. This connected part 40
Has an opening 41 formed in the main body 20a,
A shaft member 42 is suspended in the opening 41. And
The car 100 is connected to the shaft member 42 via an attachment 170 (see FIG. 2).
The connected portion 40 is provided with a photosensor 137 and a lock lever 43 in addition to the shaft member 42 (see FIG. 8A), and details thereof will be described later.

Next, a car (carrier) 1 that moves up and down the stairs 5
The structure of 00 will be described with reference to FIGS.

The car 100 has a car body K, and the car body K is configured to be foldable. When the car main body K is assembled, for example, at the time of ascending and descending stairs, the frame body 1 starts from each edge of the substantially rectangular bottom plate 122.
01, 125, and handover plates 160, 161 are erected,
Further, between the frame members 101 and 125, blocking members 132 and 13 are provided.
2 is suspended so that four sides of the bottom plate 122 are closed. An object to be conveyed (for example, a person or luggage) is placed on the bottom plate 122.

FIG. 5B shows the side of the frame 101.
As shown in FIG.
A roller support device 104 is rotatably attached to a shaft member 102a fixed to the upper bracket 102. This roller support device 10
4 has a “U” -shaped roller frame 105, and the roller frame 105 has a lower bracket 10.
3, a lock device L for fixing the roller frame 105 at a predetermined position M is attached.

The lock device L and the like will be described.
As shown in detail in FIG. 6A, the inside of the roller frame 105 is hollow, and a shaft member 106 is fixed to an intermediate portion 105b. One side of the shaft member 106 protrudes from the roller frame 105, and a guide roller 117 is rotatably supported on the protruding portion. On the other hand, a lever 107 rotatably supported by the shaft member 106 is provided inside the roller frame 105. Between the lever 107 and the roller frame 105, the lever 107 is rotated counterclockwise. A biasing spring 109 is interposed. A contact type limit switch 110 is attached to the roller frame 105 so as to detect 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 by 7b, and a link member 112 is pivotally supported by the link member 111. The link member 112 is slidably supported by a guide member 113 attached to the roller frame 105, and moves in the longitudinal direction of the guide member 113 according to rotation of the lever 107 and the link member 111. Has become. As shown in FIG. 6 (b), two sets of link members 115a and 115b are rotatably supported at the end of the link member 112, and sliders 116a and 116b are pivotally mounted at the ends. Supported. Then, these sliders 116a,
116b is slidably supported by guide members 108a and 108b attached to the roller frame 105, and slides in the guide members 108a and 108b as the link member 112 moves. As a result, the lever 107 is urged by the spring 109 to turn on the limit switch 110 (FIG. 6).
(a) The slider 1
The leading ends of the guide members 108a and 108b
b and the lever 1 against the spring 109.
07 is rotated (in the case where it is at the position indicated by the two-dot chain line in FIG. 6A), the sliders 116a, 116b
Is moved via the link member 111, the link member 112, and the link members 115a and 115b, and the distal ends thereof do not protrude from the guide members 108a and 108b.

On the other hand, the lower bracket 103 is
As shown by the two-dot chain line in FIG.
5 has a slightly larger gap than the width of the through holes 103a and 10b into which the sliders 116a and 116b are fitted.
3b is drilled. Further, as shown in FIG. 5B, the lower end of the lower bracket 103 is provided with a shaft member 1.
The shaft member 118 has one side protruding similarly to the shaft member 106 described above. The protruding portion includes a guide roller 119.
Are rotatably supported.

The above-described guide roller 117 and guide roller 119 have a drum-shaped cross section, and are engaged with roller guides 9 and 10 having a circular cross section. I have. When these guide rollers 117 and 119 engage with the roller guides 9 and 10, the ends of the guide rollers 117 and 119 have a large-diameter portion, so that their engagement is not released. .

On the other hand, an attachment 170 for connecting the car body K to the towing vehicle 20 is attached to the upper surface of the bracket 102 that rotatably supports the roller frame 105. As shown in FIG. 7, the attachment 170 has a main body 170a bolted to the bracket 102, and a
1 is rotatably supported. This clamp member 17
A concave groove 172 having a tapered opening side edge is formed on the lower surface of the distal end portion 1 so as to be engaged with the shaft member 42 on the towing vehicle 20 described above. A lever member 173 extends upward from the center of the clamp member 171 so that the clamp member 171 can be easily rotated. Furthermore, a locking groove 170b is formed on the upper surface of the attachment body 170a, and the lever member 173 (particularly,
The bar-shaped member 173a) is locked.

On the other hand, a lock lever 43 is rotatably supported by the connected portion 40 of the towing vehicle 20, as shown in FIG. 8 (a). A spring 45 is attached to an upper portion of the lock lever 43, and urges the lock lever 43 in a clockwise direction. Also, the lock lever 43
Is positioned on the upper surface of the clamp member 171 engaged with the shaft member 42, and abuts against a stopper portion 171a formed on the upper surface to restrict further rotation. It has become. Further, a photo sensor 137 is provided at a position where the lower end 43a of the lock lever 43 is located. This photo sensor 13
Reference numeral 7 detects the rotational position of the lock lever 43, outputs a signal when the lower end portion 43a is not in contact with the stopper portion 171a, stops driving the towing vehicle 20, and sounds a buzzer or the like. It is configured to generate an alarm.

On the other hand, the attachment 170 described above
As shown in FIG. 9, a substantially rectangular moving base 120 is fixedly provided at the lower end of the frame body 101 that supports the above. The caster 12 is provided on the lower surface of the moving base 120 and the like.
1, 121, 121, 121 are attached, and can be manually conveyed in all directions.

A bottom plate 122 is supported at the lower end of the frame 101 so as to be rotatable about a shaft member 122a. In addition, the above-mentioned moving base 120 is the bottom plate 1.
The projection area is formed smaller than the projection area 22, and a gas buffer 123 is interposed between the moving base 120 and the bottom plate 122 (see FIG. 5C).

Further, a frame 125 is rotatably supported on the tip edge 122b of the bottom plate 122. The supporting structure will be described with reference to FIG.
A plate-like member 126 is provided upright on 22b, and a frame 125a of a frame body 125 is attached to the plate-like 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 protruding from a plate-like 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 the lower end of the outer plate 131 so that the lock member 129 can be rotated.

The lock member 129 and the pin 13
0, the frame 125 is folded toward the bottom plate 122, and the bottom plate 122 is folded together with the frame 125 toward the frame 101, as shown by the two-dot chain line in FIG. 122 and the frame bodies 101 and 125 are movable bases 120.
, And the projected area of the car 100 is reduced. Note that the above hinge 1
Numeral 27 denotes a device incorporating a hydraulic damper, which, together with the gas shock absorber 123, reduces shock caused by rotation of the bottom plate 122 and the like. Further, obstacle sensors 140 and 141 are attached to the front end and the rear end of the frame 101, and signals from the sensors 140 and 141 are input to a control device (not shown). . When there is an obstacle on the moving route of the car 100, the motor 30 is stopped.

Next, the blocking members 132, 132 rotatably supported by the upper portions 101a of the frame 101 will be described. In addition, since the structure of the blocking members 132 and 132 and the attachment structure thereof are the same, the blocking members 132 on one side are provided.
Will be described with reference to FIGS. 11 and 12.

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 member 133a fixed to the frame 101, and a hinge screw 133b is attached to the plate member 133a in the vertical direction. This hinge screw 133b
A cylindrical member 133c is rotatably supported by 180 degrees at the upper portion of the bolt. The cylindrical member 133c has an L-shaped member 135 (hereinafter referred to as "L-shaped member").
It is rotatably supported via 36. As shown in FIG. 11 (b), the L-shaped member 135 is
Side, so that this blocking member 13
2 is configured to rotate horizontally using the hinge screw 133b as a rotation center axis and also rotate using the bolt 136 as a rotation center axis. The L-shaped member 135
A pin 139 protrudes from the center of the bolt.
It rotates around 36.

On the other hand, a cylindrical member 133d is rotatably supported below the hinge screw 133b, similarly to the cylindrical member 133c, and an elongated hole 138a is formed in the cylindrical member 133d. Locked member 138 is rotatably supported. As shown in detail in FIG. 12, a pin 139 projecting from the center of the L-shaped member 135 is fitted in the long hole 138a, and the L-shaped member 135 is connected to the bolt 1 by a bolt.
36, the pin 139 is also rotated, and the locking member 138 engaged with the pin 139 is
9 while the rotational position is defined by the cylindrical member 133.
It rotates 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 prevented, and rotation of the blocking member 132 is restricted. It has become so. That is, the maximum rotation position of the L-shaped member 135, that is, the blocking member 132 is defined by the locking member 138 and the pin 139 (this maximum rotation position is indicated by a chain line in FIG.
Hereinafter, it is referred to as “maximum swing position Q”).

On the other hand, the blocking member 132 has two locking members 150 and 151 so as to move in the longitudinal direction.
Are arranged, and these lock members 150, 151
Are connected by a link member 152 rotatably supported. Then, when the lock member 150 is moved such that the distal end portion protrudes from the blocking member 132,
The lock member 151 also moves via the link member 152,
The tip is also configured to protrude from the blocking member 132. Engaging portions 153 and 155 are formed at predetermined positions of the frame bodies 101 and 125, and the blocking members 132 are formed.
Is held at the maximum swing position Q, the lock member 150,
When the 151 is moved, it engages with the distal ends thereof, and defines the rotational position of the blocking member 132 to close the gap between the frame bodies 101 and 125.

Further, front and rear crossover plates 160 and 161 are disposed at both longitudinal edges of the bottom plate 122, and the front and rear crossover plates 160 and 161 are supported to be openable and closable so as to take an open position and a closed position. ing. When the front and rear cross plates 160 and 161 are closed, the front and rear cross plates 160 and 161 are held upright from the longitudinal direction of the bottom plate 122 to hold the frame bodies 101 and 1.
In the open state, a person in a wheelchair can carry a car 100 as shown in FIG. 5 (b).
You can get on.

The support structure for the front and rear transfer plates 160 and 161 will be briefly described. Four guide plates 162, 162 and 162 are provided inside the lower portions of the frames 101 and 125 for supporting the front and rear transfer plates 160 and 161. 162 are attached (see FIG. 5B), and these guide plates 162,.
Are formed with long holes 162a, respectively.
(d)). A pin 160a protruding from a side portion (a portion facing the frame bodies 101 and 125) of the front and rear passing plates 160 and 161 is fitted in the long hole 162a.
The front and rear transfer plates 160 and 161 are rotatably supported. On the other hand, a U-groove 162b is formed in each of the guide plates 162,..., And a pin 160b that can be freely engaged with the U-groove 162b protrudes from the forward plate 160. Therefore, when the pin 160b is engaged with the U groove 162b, the advance plate 160 is held in an upright state, and the advance plate 160 is moved so that the pin 160a moves within the elongated hole 162a, and the pin 160b is moved. U groove 162
When the engagement with b is released, the advance plate 160 becomes rotatable and can be opened as described above.

A stop switch (not shown) is attached to each of the upper and lower ends of the frame 101 and the guide device 6, so that the car 100 can be stopped in an emergency. In addition, an operation box (not shown) can be connected to the car 100 via a cable. When the stair climber 1 is used, the station staff operates the operation box while running along with the car 100 to operate the car 100. The operation is to be performed. Next, the operation of the above embodiment will be described.

When the stairlift 1 is not used, the car 100 is removed from the guide device 6 and the towing vehicle 20, and the car 100 is folded and stored in a storage place on the upper floor 3 side.

In that case, first, the towing vehicle 20 is driven electrically to raise the car 100 connected to the towing vehicle 20. Then, the car 100 is moved to the uppermost step 5c of the stairs 5 in a state where the car 100 is maintained in a horizontal posture along the car guide rail portion 11.
And descends slightly along the slopes 9a, 10a formed on the roller guides 9, 10, and lands on the floor 3a of the upper floor 3. Next, the drive of the electric motor 30 of the towing vehicle 20 is stopped, and the connection between the towing vehicle 20 and the car 100 is released by operating the lever member 173 of the attachment 170. Furthermore, after folding the basket 100, the roller guides 9, 10
To disengage the cage 100 from the guide device 6.

Here, the operation when the car 100 is folded will be described.

In order to fold the car 100, first, 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 distal ends of both the lock members 150 and 151 are drawn into the blocking member 132. In this state, both lock members 150, 15
1 is disengaged from the engaging portions 153 and 155, and the blocking member 132 is rotatable. By rotating the blocking member 132 about the bolt 136 as the rotation center axis and rotating the hinge screw 133b horizontally about the rotation center axis, the blocking member 132
1 is provided at a position along. Next, the transfer plates 160, 1
61 is folded to the bottom plate 122 side. Then, the lock member 129 below the frame 125 is removed, and the frame 125 is rotated, and the bottom plate 122 is rotated with respect to the frame 101.
When the frame body 125 and the bottom plate 122 rotate, the gas type shock absorber 123 and the like act, and the frame is slowly folded. Further, the lever 10 of the roller support device 104
7 is rotated clockwise against the spring 109. Then, the link members 111, 112, 115
The sliders 116a and 116b move via the guide members 108a and 108b.
From the projection. In this state, the roller frame 105 is rotated clockwise around the shaft member 102a.

On the other hand, when the stair climber 1 is used,
For example, the car 1 in a state where the station staff is folded as described above.
00 is taken out of the storage location and transported to the upper floor end 6a of the guide device 6 by manual transport. Then, the car 100 is connected to the car guide rail 11 of the guide device 6 and the towing vehicle 20, and the operation at that time will be described.

First, the car 100 is assembled in the reverse procedure, and the roller frame 105 is also rotated to the normal position M and fixed by the lock device L. Then, the car 100 is moved from the direction of the arrow P shown in FIG.
Move toward. Here, the roller guide end 9
The heights of b and 10b (for example, h ₂ shown in FIG. 3) are set to the heights corresponding to the guide rollers 117 and 119 as described above, and the roller guide end portions 9b and 10b have sharp points. (For example, conical shape)
The guide rollers 117 and 119 can easily be used as the roller guides 9 and 1.
0 is engaged. Then, the car 100 is further moved along the roller guides 9 and 10, and the attachment 170
At the position facing the opening 41 of the towing vehicle 20, and at that position, the lever member 173 is tilted toward the towing vehicle 20. Then, the clamp member 171 fixedly provided on the lever member 173 also falls down, and the concave groove 172 formed at the distal end thereof is engaged with the shaft member 42. At this time, the distal end of the clamp member 171 contacts the lock lever 43, but the lock lever 43 is rotated only against the urging force of the spring 45 and does not hinder the rotation of the clamp member 171. . Then, the clamp member 17
When the lock lever 1 is engaged with the shaft member 42, the lower end 43a of the lock lever 43 is located on the upper surface of the clamp member 171 and abuts against the stopper 171a to restrict further rotation. Has become. The lower end 43a of the lock lever 43 blocks the optical path of the photo sensor 137. Also, the rotation shaft 43b of the lock lever 43
Is slightly displaced from the contact point between the lock lever 43 and the clamp member 171 (is displaced to the rear side of the towing vehicle 20), so that only the force transmitted from the clamp member 171 to the lock lever 43 causes the lock lever 43 does not rotate.

Then, while a person or the like (for example, a wheelchair user) is placed on the car 100, 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, the driving force is transmitted to the driving sprocket 32 via the gear box 31, and the driving sprocket 32 is driven to rotate. Since the drive sprocket 32 is engaged with the chain rack 16 attached to the guide device 6, the towing vehicle 20 itself moves along the guide device 6. The propulsive force of the towing vehicle 20 is transmitted to the car 100 via the attachment 170, and the car 100 is moved along the roller guides 9 and 10 to the upper floor 3
However, the car 100 is slightly lifted up and separated from the floor 3a at the portion where the slopes 9a and 10a are formed. Therefore, the car 100 is located at the top of the stairs 5.
The stairs 5 are lowered along the roller guides 9 and 10 without interfering with c. At this time, the guide roller 117 is urged by the roller guide 9 from below, and the guide roller 119 is urged by the roller guide 10 from above. Since the ends of the guide rollers 117 and 119 have a large diameter, the guide rollers 117 and 119 also receive a force in the rotation axis direction. 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 and changes while maintaining a predetermined relationship. The supported car 100 moves with the bottom plate 122 kept horizontal. At this time, the operator of the operation box (for example, a station worker) moves with the moving car 100 and the car 1
Operate the 00 movement speed and the like. Attachment 1
Numeral 70 transmits the thrust of the driving device 20 to the car 100, and receives a falling moment so that the car 100 does not fall in a direction away from the guide device 6.

When the car 100 reaches the lower floor 2, the operation of the electric motor 30 is stopped by the operation box, and the car 1
Stop 00. And remove the clasp and advance plate 1
After opening 60 and opening the blocking member 132 on the lower floor 2 side, the user descends to the lower floor 2.

On the other hand, since the car 100 that has risen along the guide device 6 lands on the upper floor 3a, the car 100 can be attached and detached on the upper floor 3. Therefore, basket 1
It is also convenient when the storage location of 00 is not on the lower floor but only on the upper floor. Further, in the vicinity of the uppermost step 5c of the stairs 5, the height of the roller guides 9, 10 is set to a height (h ₁ ) such that the car 100 is separated from the floor 3a. There is no contact with the uppermost stage 5c. Furthermore, these roller guides 9, 10
In the gentle slope part 9a between the vicinity of the portion of the uppermost 5c (part of the height h ₁₎ and the roller guide ends 9b, and 10b (part of the height h ₂₎ of the stairs 5, 10a
Is formed, so that the car 100 is placed on the upper floor 3
The shock when landing at a is small, and the person in the car 100 does not feel uneasy or the articles mounted on the carrier do not collapse. Further, since the roller guide end portions 9b and 10b are formed in a pointed shape (for example, a conical shape), the guide roller 11
7, 119 can be easily engaged (inserted).

On the other hand, since the car 100 can be folded, it can be easily transported and stored. In addition, the car 100 can be easily and reliably connected by the clamp member 171 and the like, and no tool is required for the connection. Further, since the clamp member 171 is locked by the lock lever 43, the connection is not easily released and the clamp member 171 is safe. Further, a photo sensor 137 for detecting the position of the lock lever 43 and monitoring the connection state is provided on the towing vehicle 20 side, so that if the connection is released, it is necessary to know that in advance. And appropriate control for safety can be performed. Therefore, there is no danger that the car 100 that is moving up and down will be disengaged from the towing vehicle 20 to lose thrust and fall. Also, the rotation shaft 4 of the lock lever 43
3b is slightly displaced from the contact position between the lock lever 43 and the clamp member 171 (is displaced to the far side of the towing vehicle 20), so the lock lever 4 is disengaged from the clamp member 171.
The lock lever 43 is not easily rotated by only the force transmitted to the lock 3 and is safe.

On the other hand, the stair climber 1 according to this embodiment
Can be mounted on the tread surface 5b of the existing stairs 5 simply by fixing the guide device 6 with anchor bolts or the like. Therefore, unlike the conventional fixing to the side wall shown in the conventional example, there is no need to consider the strength of the side wall when installing the stair climbing elevator 1, and the stair climbing elevator 1 can be installed on any stairs. In addition, large-scale civil engineering work and construction work, such as when an elevator and an escalator are installed, are unnecessary, and there are very few incidental works, and the installation cost and work period for installation can be small.

In the above-described embodiment, the roller guide ends 9b and 10b are formed in a pointed shape (for example, a conical shape). However, the present invention is not limited to this, and the roller guide ends 9b and 10b may be located between the roller guide ends 9b and 10b. Guide roller 11 with gap
7, 119, the guide roller 11
7, 119 may be easily engaged.

[0059]

As described above, according to the present invention,
Due to the moment due to the gravity acting on the carrier, the upper guide roller constantly urges the upper roller guide from below and makes rolling contact, and the lower guide roller urges the lower guide roller from above and rolls into contact with the carrier, thereby moving the carrier. It is possible to maintain the horizontal state and extend the guide device on the upper floor to transport the transport body to the upper floor while maintaining the horizontal state. It is also possible on the floor. Therefore, it is also convenient when the storage location of the carrier is not on the lower floor but only on the upper floor. Further, the guide rail portion on the upper floor is formed so that the stair tread side is higher, and the transport body moves in the vicinity of the uppermost step of the stairs without contacting the upper floor. Therefore, the moving carrier does not contact the uppermost stage. Further, a slope is formed in the guide rail so that a shock when the transport body lands on the upper floor is reduced. Therefore, a person riding on the transport body does not feel uneasy, or the articles mounted on the transport body do not collapse.

Further, the gap between the upper floor side end of the roller guide is formed wider than the gap between the upper guide roller and the lower guide roller, so that the guide roller can be easily inserted into the roller guide. Further, by making the upper floor end of the roller guide pointed, the guide roller can be easily inserted into the roller guide.

[Brief description of the drawings]

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

FIG. 2 is a cross-sectional view showing a mounting structure of a guide device and a car.

FIG. 3 is a diagram showing a detailed structure of a guide device.

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

5A is a plan view of a car, FIG. 5B is a front view of the car, and FIG.
Is a left side view thereof, and (d) is a view showing a structure of a support portion of the handover plate.

6A is a partial sectional view showing the structure of a roller supporting device, and FIG. 6B is a sectional view taken along line CC of FIG.

FIG. 7 is a perspective view showing the structure of the attachment.

8A is a cross-sectional view showing a connection state between an attachment and a shaft member, and FIG. 8B is a view taken in the direction of arrow D in FIG.

FIG. 9 is a sectional view taken along the line EE in FIG. 5 (b).

FIG. 10 is a detailed sectional view of a portion F in FIG. 9;

11A is a side view showing a blocking member and a mounting structure thereof, and FIG. 11B is a cross-sectional view taken along line GG of FIG. 11A.

FIG. 12 is a sectional view taken along the line HH in FIG. 11 (a).

FIG. 13 is a view showing a conventional stair climber.

FIG. 14 is a detailed view illustrating a mounting structure of a transport body in a conventional example.

FIG. 15 is a cross-sectional view illustrating a mounting structure of a transport body in a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Stair elevator 2 Lower floor 3 Upper floor 5 Stairs 5a Side wall 5b Stair tread 5c Uppermost step of stairs 6 Guide device 6a Upper end of guide device 9 Upper roller guide 9a Slope section 10 Lower roller guide 10a Slope section 11 Guide Rail section (car guide rail section) 12 Handrail section 20 Moving body (towing vehicle) 30 Electric motor 40 Connected section 42 Shaft member 100 Carrier (basket) 117 Roller (guide roller) 119 Roller (guide roller) 170 Attachment 171 Clamp Material K Basket body

Continuing on the front page (72) Inventor Yoshihiro Kitamura 197 Kumasaka-cho, Kaga-shi, Ishikawa Prefecture Inside Daido Kogyo Co., Ltd. References JP-A-5-147872 (JP, A) JP-B-59-7630 (JP, B2) (58) Fields investigated (Int. Cl. ⁶ , DB name) B66B 9/08

Claims (4)

(57) [Claims] 1. A guide device fixedly mounted on a stair, a movable body movably supported by the guide device and electrically driven along the guide device, and detachably connected to the movable body. A stair climber comprising: a carrier that moves up and down stairs along the guide device. The guide device includes an upper roller guide extending from a lower floor to an upper floor.
And a guide rail portion having a lower roller guide and projecting forward from the lower floor to the upper floor of the transport body to guide the upper side.
A roller and a lower guide roller, and act on the carrier
The upper guide roller
Is pressed against the upper roller guide from below and rolls
Attach the lower guide roller to the lower roller guide from above
Guides the carrier to the guide rails
Moving by the moving body, the upper floor end of the guide device is further extended than the uppermost step of the stair tread and disposed on the upper floor, and the guide at the upper floor end is provided. and a gradient portion is provided on the rail unit, and a high step-tread side of the guide rail section, stairlift, characterized in that. 2. The space between the upper guide roller and the lower guide roller in a horizontal state of the conveyance body , wherein a gap between upper end portions of the upper and lower roller guides is formed wider. Stair climber. Wherein the upper story end in the vertical roller guide becomes formed respectively pointed shape, according to claim 1 or 2 stairlift according. 4. A guide rail portion of the upper floor end becomes lower by the gradient portion, the carrier is located at a height landing upstairs floor claim 1, 2 or 3. The stair climber according to 3 .