JP2986657B2 - 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. 15, 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 are formed with long holes 203a and 205a. I have. A rack 210 is attached to the lower surface of the guide rail 203 (see FIG. 16).

On the other hand, the moving body 209 is
A pair of arms 207, 207 extended to the side of 3,205
(See FIG. 17), and guide rollers 206, 206 rotatably supported at the distal ends of the arms 207, 207 (see FIG. 16).
Are disposed in the guide rails 203 and 205 (see FIG. 18), so that the moving body 209
3,205 to be movably supported.
A driving sprocket 211 and an electric motor 212 are attached to the moving body 209, and the
The moving body 209 is configured to move up and down stairs based on the driving of the driving sprocket 211 meshed with 0. Furthermore, the moving body 209 has a bolt 21
3, a carrier 215 is mounted on the lower surface of the carrier 215.
16 are attached.

With the above configuration, when the stair climber 200 is not used, the carrier 215 can be detached from the moving body 209 and stored in a place where it does not obstruct traffic. At this time, the caster 21 is
Since 216 are attached, they are moved by hand from the stairs 201 to the storage place.

When a person in a wheelchair is transported from the lower floor to the upper floor using the stair climber 200, the moving body 209 is driven electrically to guide the guide rail 203,
205 to the lower end. On the other hand, the carrier 215
Is removed from the storage location and moved by hand to the movable body 209, and the transport body 215 is
13 attaches to the moving body 209. This carrier 2
After a person gets into the vehicle 15, the motor 21
2 is started to drive the drive sprocket 211 to rotate. Then, since the rack 210 with which the drive sprocket 211 is engaged is fixed to the guide rail 203 side, the moving body 2 supporting the drive sprocket 211
09 is stairs 201 along guide rails 203 and 205
Start to rise. When the carrier 215 reaches the upper floor, the driving of the electric motor 212 is stopped, and the moving body 209 and the carrier 21 are stopped.
Stop 5

[0008]

According to the above-described prior art, the transporter 215 is attached to the movable body 209 by the bolt 213. Therefore, when the carrier 215 is attached to the moving body 209, the carrier 2
The position of the bolt 213 has to be adjusted by moving the carrier 215 so that the bolt 213 on the 15 side coincides with the bolt hole position (not shown) of the moving body 209, and the position adjustment work is troublesome. Further, since the bolt 213 must be screwed in so as not to be easily removed, a tool for screwing the bolt 213 is required.

Also, if the bolts 213 come off during the ascent and descent of the stairs 201, there is also a problem that the carrier 215 may fall down. .

In view of the above, the present invention provides a method for easily attaching and detaching a carrier to and from a moving body without the need for tools, and preventing the carrier from easily detaching from the moving body. It is an object to provide a stair climber in which is performed.

[0011]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has a guide device (6) provided on a staircase, and a guide device (6) supported by the guide device (6). Moving body (20) driven electrically along 6)
And a carrier (100) connected to the moving body (20) and moving along the guide device (6), wherein the moving body (20) is a member to be connected. (42) and a lock lever (43) rotatably supported, wherein the carrier (100) has a carrier body (K) on which an object to be carried is placed, and a carrier body (K). And a clamp member (171) rotatably supported on the connected member (42) and engageable with the connected member (42), and the clamp member (171) is engaged with the connected member (42). When the lock lever (4
3) locks the clamp member (171) to maintain the engaged state.

In this case, a spring (45) attached to the lock lever (43) and for urging the lock lever (43) in a predetermined rotation direction;
A stopper portion (171a) provided on the lock lever (4) for holding the lock lever (43) in contact with the urging force of the spring (45);
And a position detecting device (137) for detecting the position of (3), and the urging force of the spring (45) from the lock position where the lock lever (43) is in contact with the stopper portion (171a). It is preferable to stop the electric operation of the moving body (20) when the movable body (20) rotates against the rotation.

[0013]

When the stair climber (1) is not used, the transporter (100) is stored in a place where it does not obstruct the passage. On the other hand, when the stair lift (1) is used, the stored carrier (100) is moved to the step (5), and the clamp member (171) is connected to the connected member (42). To be engaged. In this state, the lock lever (43) locks the clamp member (171) to maintain the engaged state. Next, the moving body (20) supported by the guide device (6)
When the vehicle is electrically operated, the moving body (20) moves along the guide device (6), and the transporting body (100) connected to the moving body (20) also moves up the stairs (5) together with the moving body (20). Up and down. In order to release the connection, the lock lever (43) is rotated to unlock the clamp member (171), and then the clamp member (17) is unlocked.
1) is rotated to disengage the connected member (42).

As an example, a stopper (171a) is provided on the clamp member (171), and a lock lever (43) is provided.
Is held in contact with the stopper portion (171a) by the urging force of the spring (45). Clamp member (1
When the lock lever (43) rotates against the spring (43) when the member (71) is engaged with the connected member (42), the concave groove (172) of the clamp member (171) is engaged with the connected member (42). In the state where the lock lever (43) is engaged, the lock lever (43) is rotated by the urging force of the spring (45), abuts on the stopper (171a), and is held at that position. The rotation shaft (43b) of the lock lever (43) is connected to a stopper (1).
71a) is slightly displaced to the rear side of the movable body (20) from the contact point, so that even if a force is applied from the clamp member (171) in a direction in which the clamp member is disengaged from the connected member (42), the lock is not performed. The lever (43) is connected to the stopper member (171).
The lock lever does not rotate but is held in the locked state only by the rotation force acting in the direction of pressing against a). A force is applied to the lock lever (43) in the direction of rotation against the spring (45), and the lock lever (43) is rotated so as to be displaced from the contact position with the stopper (171a). In this case, the lock holding action of the clamp member by the lock lever is released. At this time, the position detection device (137) detects this state and stops the electric operation of the moving body. Reference numerals in parentheses refer to the drawings, but do not limit the configuration in any way.

[0015]

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

As shown in FIG. 1, the stair climber 1 according to the present embodiment includes a guide device 6 provided on a stair 5 connecting the lower floor 2 and the upper floor 3, and the guide device 6 includes A towing vehicle (moving body) 20 and a car (transporting body) 100 are movably supported. The towing vehicle 20 and the car 100 are connected to each other, and the car 100 is configured to move up and down the stairs 5 based on the fact that the towing vehicle 20 is electrically driven and moves along the guide device 6. .

First, the towing vehicle 20 and the car 100
The guide device 6 for supporting is described with reference to FIGS.

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.
Since the guide device 6 is attached in this manner, a space S is formed between the guide device 6 and the side wall 5a.

At a predetermined height of the guide device 6 on the side of the stairs 5 (the left side in FIG. 2; hereinafter, referred to as “front side”, and the side wall 5a side is referred to as “back side”), a car guide rail portion is provided. 1
1 is formed from the upper floor 3 to the lower floor 2, and the car guide rail portion 11 has a recess 8. An upper roller guide 9 and a lower roller guide 10 each having a substantially circular cross section are attached to the upper surface and the lower surface of the recess 8, respectively, and are rotatably supported by these roller guides 9, 10. The car 100 is supported via the guide rollers 117 and 119. As shown in FIG. 1, the distance between the roller guides 9 and 10 (the vertical distance from the upper roller guide 9 to the lower roller guide 10) is constant from the lower floor 2 to the upper floor 3 of the stairs 5. The reason is that the car 100 supported via the guide rollers 117 and 119 moves while maintaining the horizontal posture.

The height of the guide device 6 is 800 m.
In the upper end portion, a handrail portion 12 for a person who goes up and down the stairs 5 is formed from the upper floor 3 to the lower floor 2.

Further, on the back side of the guide device 6, 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, and the towing vehicle guide rail 17 is provided. Reference numeral 17 includes rail members 17a and 17b which form the groove 6a based on being arranged at a predetermined interval, and a rail member 17c protruding into the space S described above.

Further, a plate-like member 13 is hung below and below the handrail portion 12, and together with the rail member 17a, forms a recess opening downward. A chain 15 composed of a roller chain is provided in a recess formed by the plate-like member 13 and the rail member 17a. The chain 15 allows a predetermined amount of play and does not fall. Is held.
That is, a chain rack 16 is configured by the chain 15, the plate-shaped member 13, and the rail member 17a. On the other hand, a power supply trolley duct 19 is provided below the rail member 17c, and a power supply line 19a to which a voltage is applied from a power supply (not shown) is accommodated inside the power supply trolley duct 19. The above-described chain rack 16 and power supply line 19 a are also formed along the stairs 5 from the upper floor 3 to the lower floor 2.

Next, the towing vehicle 20 (moving body) 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, and 22d are rotatably supported by the plate member 21, and the rollers 22a and 22c and the rollers 22b and 22d have a gap corresponding to the plate thickness of the rail member 17c described above. They are arranged at a predetermined distance up and down so as to have. Roller support brackets 23a and 23b extend horizontally from the lower portion 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). ). When the towing vehicle 20 is attached to the guide device 6, the four rollers 22a,... 22d sandwich the rail member 17c from above and below, and the two rollers 25a, 25b are connected to the rail member 17b and the rail member 17c.
c, the towing vehicle 20 is movably supported. At this time, four rollers 2
.. 22d define the vertical position of the towing vehicle 20, and the other two rollers 25a, 25b define the horizontal position of the towing vehicle 20. Further, the rollers 32a, 35a
Is adapted to 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 any direction.

The tubular member 26 is provided below the main body 20a.
The tubular member 26 also has a power supply member 29.
Are swingably fixed. The power supply member 29 has a contact that makes sliding contact with the above-described power supply line 19a, and the cord 27 from the power supply member 29 is connected to the tubular member 26.
It is arranged to the main body 20a through the inside.

On the other hand, as shown in detail in FIG. 4, a motor 30 is mounted in an upright state inside the main body 20a.
a, power is supplied via the power supply member 29 and the cord 27. The driving speed of the electric motor 30 can be adjusted by inverter control.
The maximum movement speed of 00 is 15 m / min, and a slow start and a slow down stop are possible. A gear box 31 is provided below the electric motor 30.
The output shaft 31 a projects horizontally from the gear box 31 toward the guide device 6.
Further, a drive sprocket 32 is fixed to 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 driving sprocket 32 is driven to rotate, and the towing vehicle 20 supporting the driving sprocket 32 is driven.
Move 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 is
Along the stairs 5. 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 provided on the main body 20a of the towing vehicle 20 so as to be at the same height as the output shaft 31a of the gearbox 31 and to be parallel to 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 fixedly provided at the front end of 3, and the driven sprocket 35 is also meshed with the chain rack 16 in the same manner as the driving sprocket 32. Therefore, when the towing vehicle 20 moves, the driven sprocket 35 rotates. As shown in FIG. 5, a disk 36 for detecting a rotational speed is fixed to a portion inside the main body 20a.
And it rotates integrally with the driven shaft 33. Further, a number of holes (not shown) are formed in the disk 36 in a radial manner, and a photo sensor 37 is disposed at a position facing the holes so as to sandwich the disk 36 so as to sandwich the disk. The number of rotations of the plate 36 is detected.

Further, a safety brake 39 is provided at the rear end of the driven shaft 33.
Operates when a signal of a predetermined value or more is input from the photo sensor 37. The safety brake 39 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 this safety brake 39
, The rotation of the driven shaft 33 and the driven sprocket 35 is locked, and the movement of the towing vehicle 20 is stopped.

The driving sprocket 32 and the driven sprocket 35 have rollers 32a, 35a rotatably supported at their tip ends, respectively.
a and 35a are adapted to roll in a 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 any of the front and rear directions, and the engagement between the chain rack 16 and the two sprockets 32 and 35 is also ensured.

As shown in FIG. 4, an attachment 170 described later is provided on the front surface of the towing vehicle 20 main body 20a.
Are connected to each other. The connected portion 40 has an opening 41 formed in the main body 20a, and a shaft member (connected member) 42 is suspended in the opening 41. Then, based on the engagement of the attachment 170 with the shaft member 42, the car 100 is connected to the towing vehicle 20 so that thrust is given and the car 100 is supported so as not to fall forward. In addition, a photosensor (position detecting device) 137 and a lock lever 43 are disposed in the connected portion 40 in addition to the shaft member 42 (see FIG. 9), and details thereof will be described later. .

Next, the structure of a car (transporting body) 100 which is movably supported by the above-described guide device 6 and which is given a thrust from the towing vehicle 20 to move up and down the stairs 5 will be described with reference to FIGS. The car 100 to be described includes a car body (transport body body) K, and the car body K is configured to be foldable. When the car main body K is assembled, for example, when ascending or descending a stair, the frames 101 and 125 and the transfer plates 160 and 161 are erected from each edge of the bottom plate 122 having a substantially rectangular shape. 101,
Between 125, blocking members 132, 132 are laid horizontally so that four sides of the bottom plate 122 are closed. And
On the bottom plate 122, an object to be conveyed (for example, a person or luggage) is placed.

The side of the frame 101 is shown in FIG.
As shown in FIG.
02 and 103 are fixed, and the upper bracket 10
The roller support device 10 is attached to the shaft member 102a fixed to
4 is rotatably mounted. The roller support device 104 includes a “U” -shaped roller frame 105. The roller frame 105 is engaged with the lower bracket 103 to move the roller frame 105 to a predetermined position M.
Is attached to the lock device L.

The lock device L and the like will be described.
As shown in detail in FIG. 7A, the roller frame 105 has a hollow inside, 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. 7 (b), two sets of link members 115a and 115b are rotatably supported at the end of the link member 112, and further, sliders 116a and 116b are provided at the ends thereof.
Is pivoted. Then, these sliders 116
The guide members 108a and 108b are slidably supported by guide members 108a and 108b attached to the roller frame 105, and slide within the guide members 108a and 108b as the link member 112 moves. . Thus, when the lever 107 is urged by the spring 109 to turn on the limit switch 110 (the state indicated by the solid line in FIG. 7A), the tips of the sliders 116a and 116b are guided. Member 108
a, 108b, and when the lever 107 is rotated against the spring 109 (when the lever 107 is at the position shown by the two-dot chain line in FIG.
a and 116b are the link member 111, the link member 11
2 and link members 115a, 115b, etc., and their leading ends are guided by guide members 108a, 108b.
b does not protrude.

On the other hand, the lower bracket 103 is
As shown by the two-dot chain line in FIG.
05, and a through hole 103a, 1 into which the sliders 116a, 116b are fitted.
03b is drilled. Further, a shaft member 118 is attached to the lower end of the lower bracket 103 as shown in FIG. 6B.
Has one side protruding similarly to the shaft member 106 described above. The protruding portion includes a guide roller 1
19 is 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 main body K to the towing vehicle 20 is mounted on the upper surface of the bracket 102 that rotatably supports the roller frame 105. As shown in FIG. 8, the attachment 170 has a main body 170a bolted to the bracket 102, and a clamp member 17 attached to the main body 170a.
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. A spring 45 is attached to an upper portion of the lock lever 43, and urges the lock lever 43 in a clockwise direction. Further, the lower end portion 43a of the lock lever 43 is located on the upper surface of the clamp member 171 engaged with the shaft member 42, and contacts the stopper portion 171a formed on the upper surface to rotate further. Are being regulated. Further, a photo sensor (position detecting device) 137 is provided at a position where the lower end portion 43a of the lock lever 43 is located. The photo sensor 137 detects the rotation 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 outputs a buzzer. And the like, and an alarm is issued.

As described above, the brackets 102, 10
3, a substantially rectangular moving base 120 is fixed to the lower end of the frame 101 supporting the roller frame 105 and the attachment 170, as shown in FIG.
Casters 121 and 1 are provided on the lower surface of the moving base 120 and the like.
21, 121, 121 are attached so that they 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 to be smaller than the projection area 22, and a gas buffer 123 is interposed between the moving base 120 and the bottom plate 122 (FIG. 6C).
reference).

Further, a frame 125 is rotatably supported on the front edge 122b of the bottom plate 122. The support 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 a two-dot chain line in FIG. The moving base 12 and the frame bodies 101 and 125
0, and the projected area of the car 100 is reduced. The above-mentioned hinge 127 has a built-in hydraulic damper, and together with the gas type shock absorber 123, is configured to reduce 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. 12 and 13.

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. This L-shaped member 135 is, as shown in FIG.
2 side, so that this blocking member 1
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
5 has a pin 139 protruding from the center thereof so as to rotate about a bolt 136.

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. 13, a pin 139 projecting from the center of the L-shaped member 135 is fitted in the elongated hole 138a.
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. In other words, 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. 13).
Hereinafter, it is referred to as “maximum swing position Q”).

On the other hand, the blocking member 132 has two lock 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 on 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 opened state, a person in a wheelchair can take a basket 10 as shown in FIG.
You can get on zero.

The support structure of 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 is attached (see FIG. 6B), and these guide plates 162, 162 are attached.
Are formed with long holes 162a (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 passing plates 160 and 161 is fitted into the long hole 162a, and the front and rear passing plates 160 and 161 are rotated. It will be freely supported. On the other hand, these guide plates 162,.
A groove 162b is formed, and a pin 160b that can be engaged with the U groove 162b protrudes from the front 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 1
When disengagement with 62b, the advance plate 160 is rotatable and can be opened as described above.

A stop switch (not shown) is attached to both 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 stair climber 1 is not used, the car 100 is stored in a 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 distal 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 engagement portions 153 and 155, and the blocking member 132 is freely rotatable. By rotating the blocking member 132 about the bolt 136 as a rotation center axis and rotating the hinge screw 133b horizontally as a rotation center axis, the blocking member 132 is rotated.
Reference numeral 32 is provided 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 125 is removed to remove the frame 1
25 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. Also, the roller support device 104
Is rotated clockwise against the spring 109. Then, the link members 111 and 11
Sliders 116a, 1a via the sliders 2, 115a, 115b.
16b are moved, and their tips are
a, 108b. In this state, the roller frame 105 is rotated clockwise around the shaft member 102a.

The car 100 is stored in a folded state as described above. When the stair lift 1 is used, for example, a station staff takes the car 100 out of the 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 transport.

Next, the car 100 is connected to the towing vehicle 20 after the towing vehicle 20 is moved to the lower end of the guide device 6, and the operation at that time will be described.

First, the attachment 170 is connected to the towing vehicle 20.
Of the car 100 so that the car 100
Is moved to an appropriate place, and in this state, the lever member 17 is moved.
3 is lowered to the towing vehicle 20 side. Then, this lever member 17
Similarly, the clamp member 171 fixed to the third member also falls down,
The concave groove 172 formed at the tip portion is engaged with the shaft member 42. At this time, the distal end of the clamp member 171 comes into contact with the lock lever 43.
Is only rotated against the urging force of the spring 45,
The rotation of the clamp member 171 is not obstructed. When the clamp member 171 is engaged with the shaft member 42, the lower end portion 43a of the lock lever 43 is located on the upper surface of the clamp member 171 and contacts the stopper portion 171a to restrict further rotation. It has been done. The lower end 43a of the lock lever 43 blocks the optical path of the photo sensor 137. The groove 17
2 is tapered and the length of the lever member 173 is increased so that the lever 2 can be engaged even if there is a slight displacement. 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 the lock lever 43 is only transmitted from the clamp member 171 to the lock lever 43. 43 does not rotate.

When the lever member 173 is tilted in this manner, the car 100 moves toward the guide device 6 by the boosting mechanism. At this time, the roller frame 105 is rotated and the guide roller 117 is moved to a position lower than the normal position. Because
The guide roller 117 does not interfere with the roller guide 9. Further, as shown in FIG. 6B, the end of the roller guide 10 extends straight, so that the roller guide 10 is lower than the mounting height of the lower guide roller 119. Therefore, the guide roller 119 does not interfere with the roller guide 10 even though the guide roller 119 remains at the normal position.
As described above, since none of the guide rollers 117, 119 interferes with the roller guides 9, 10, the roller guides 9,
10 enters the recess 8 in which it is formed. In this state, when the roller frame 105 is rotated to the regular position M and fixed by the lock device L, the upper guide roller 117
Only by being engaged with the roller guide 9, the car 100 is movably supported along the guide device 6.

Next, the car 100 is assembled by rotating the bottom plate 122 and the frame 125. At this time, the lower-floor blocking member 132 and the transfer plate 160 are in an open state, and the upper-floor blocking member 132 and the transfer plate 161 are in a closed state (see FIG. 6B). After the user of the stair climber 1 (for example, a wheelchair user) gets into the car 100, the advance plate 160 is closed and fixed with a stopper. Next, the blocking member 132 is closed. In this case, first, frame 1
The blocking member 132 is rotated in the horizontal direction to a position where the gap between the positions 01 and 125 is closed.
(See FIG. 13). 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. 12), these lock members 150 and 151 are moved to move the blocking member. 132 is fixed to the frame bodies 101 and 125. With this, the car 100 can be moved to the front and rear passing boards 160 and 161.
And the four sides are surrounded by the blocking members 132, 132 and the like.

Thereafter, 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 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 propulsion generated by 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 is engaged 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, when the car 100 moves, it gradually starts to engage.

The car 100 moves and the two guide rollers 11
When 7, 119 is engaged with roller guides 9, 10, the weight of car 100 and the person riding car 100 are supported by these engaging portions. 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 is moved with the bottom plate 122 kept horizontal. At this time, the operator of the operation box (for example, a station worker) moves with the car 100 moving upward and operates the moving speed of the car 100 and the like. The attachment 170 transmits the thrust of the towing vehicle 20 to the car 100 and also receives the overturning moment so that the car 100 does not fall in the direction away from the guide device 6.

When the car 100 has reached the upper floor 3, the operation of the electric motor 30 is stopped by the operation box and the towing vehicle 2
0 and the car 100 are stopped. Then, the catch is removed, the rear handover plate 161 is opened, and the user is lowered to the upper floor 3 after opening the blocking member 132 on the upper floor 3 side.

Thereafter, the operation box is operated again to move the towing vehicle 20 and the car 100 to the lower floor 2 and stop at the end of the guide device 6. Then, the roller supporting device 10
4 is released, and the roller frame 105 is rotated and folded. At this rotation 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. Furthermore, the car 100 is folded by rotating the frame 125 and the bottom plate 122. And the lock lever 43
After releasing the lock, the lever member 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 moved by hand to the storage location. Therefore, on the stairs 5, only the guide device 6 fixed along the side wall 5a and the towing vehicle 20 disposed between the guide device 6 and the side wall 5a are permanently provided.

Since the driven sprocket 35 is meshed with the chain 15 provided in the guide device 6,
When the towing vehicle 20 moves, the driven sprocket 35 is rotating. The rotation of the driven sprocket 35 is controlled by the driven shaft 3
The rotation speed is transmitted to a rotation speed detection disk 36 fixed to the driven shaft 33 via the rotation shaft 3. A number of holes are radially formed in the disk 36, and a photo sensor 37 is disposed at a position facing the holes so as to sandwich the disk 36. The rotation speed is detected by the photo sensor 37. The photo sensor 37 has a rotation speed of the disc 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 photosensor 37 with a reference pulse (a delay timed pulse generated from the measured pulse). Therefore, for example, the brake of the electric motor 30 breaks down, or the object placed on the car 100 is heavy, and the torque of the electric motor 30 is insufficient.
When the towing vehicle 20 falls and exceeds the set speed, it is determined that there is an abnormality, and the power of the safety brake 39 is turned off. Then, the safety brake 39 is operated, and the rotation of the driven shaft 33 and the driven sprocket 35 is stopped. Since the driven sprocket 35 is engaged with the chain 13, the towing vehicle 20 stops.

As a result, the car main body K is supported by the two guide rollers 117 and 119 so as to move while maintaining the horizontal posture, so that the car main body K can safely carry a person or the like without tilting. Can be.

Since the car body K and the towing vehicle 20 are connected via the attachment 170, the towing vehicle 2
The car body K also moves when the thrust from 0 is transmitted. At the same time, it is possible to prevent the car body K from falling over in the direction away from the guide device 6.

Further, a pair of guide rollers 117, 119
Is rotatably supported by a roller support device 104 protruding in the direction of movement of the car body K, so that the guide device 6
The car body K can be engaged with the guide device 6 even if the lower end of the car does not project. Therefore, the lower end of the guide device 6 does not protrude into the passage and hinder the passage.

Furthermore, even if the position of the car 100 is slightly deviated from the normal position, the car 100 can be connected, and accurate position adjustment as described in the conventional example becomes unnecessary, and the connecting operation becomes easy. Further, since no tool is required for connection, the connection operation is also simplified from this aspect. 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. Further, the rotation shaft 43b of the lock lever 43 is slightly displaced from the contact position between the lock lever 43 and the clamp member 171 (displaced to the rear side of the towing vehicle 20), so that the lock lever 43 is displaced from the clamp member 171. The lock lever 43 is hard to rotate with only the force transmitted to the lock lever, and is safe.

On the other hand, the stair climber 1 according to the present embodiment can be mounted on the tread surface 5b of the existing stairs 5 only by fixing the guide device 6 with anchor bolts or the like. Therefore, unlike what is fixed to the side wall shown in the conventional example,
There is no need to consider the strength of the side wall when installing the stairlift 1, and the stairlift 1 can be installed on any staircase. 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.

When the stair climbing machine 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 obstruct a person passing through the stairs 5. Even if the stairs are narrow enough to allow the car 100 to ascend and descend, the stair climber 1 according to the present embodiment can be installed. When the stair climber 1 is used, the car 100 moves up and down, so that no people can pass, but the stair climber is used. When not in use, the car 100 can be removed and used as a normal pedestrian staircase. Further, the guide device 6 is connected to the stairs 5
Is fixed along the side wall 5a and its occupied area is extremely small.
It also minimizes the need for it to interfere with traffic.

Furthermore, since the towing vehicle 20 is housed between the side wall 5a and the guide device 6, it does not obstruct a person passing through the stairs 5. Also, since no projections are formed on the guide device 6, it does not hinder the flow of people even when it is crowded. In addition, since the handrail portion 12 is formed at the upper end of the guide device 6, a person going up and down the stairs can use it. Furthermore, the roller guides 9 and 10 are
Because it is housed in the recess 8 formed and does not protrude to the outside, it does not hinder people passing through the stairs and does not cause the clothes to be stained.

On the other hand, the moving base 120 of the car 100
Since the casters 121,... 121 are attached to the, the car 100 can be easily pushed by hand. In addition, since the car 100 is folded at the time of the manual pushing movement, it does not obstruct the passage of another person at the time of the movement.
In addition, since the car 100 can be stored in the folded state, the storage space can be reduced. In this embodiment, the gas shock absorber 12 is disposed between the bottom plate 122 and the moving base 120.
The bottom plate 122 and the frame 125 are connected by a hinge 127 having a built-in hydraulic damper. Therefore, the car 100 can be folded smoothly. Further, since the blocking members 132, 132 are supported by the hinges 133, 133 so as to rotate horizontally, when the car 100 is folded, the blocking members 132, 132 can be folded compactly without hindering.

Further, since the roller frame 105 is rotatably mounted, the engagement between the guide roller 117 and the roller guide 9 is easily performed.

Further, the baskets 160, 1
Since the 61 is provided, the user of the wheelchair can get on and off with 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 ends in the short 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 is of a through type in which the car 100 gets on from one side and gets off from the other side. Therefore, the handover plate 161
Only by moving the car 100 to the position where the tip of the car reaches the upper floor 3, the user can go down from the car 100 to the upper floor 3, and the total length of the guide device 6 can be shortened. as a result,
The upper end of the guide device 6 can be prevented from protruding into the upper floor 3 and obstructing traffic.

On the other hand, since stop switches are provided at both ends of the car 100 and the guide device 6, even people other than station staff can emergency stop the car 100.

In the above-described stair climber 1,
Since sensors such as the obstacle sensors 140 and 141 are arranged at various places and stop operating in the event of an abnormality, it is safe for the user of the car 100 and other pedestrians. At the same time, the traveling speed of the car 100 is detected by the photo sensor 37 and the like, and the safety brake 39 is operated based on the signal. When the towing vehicle 20 and the car 100 fall due to their own weight without being transmitted to the guide device 6, the safety brake 39 operates. Therefore, the car 100 can be safely stopped, and the occupants of the car 100 and those around the car 100 do not get injured when the car 100 falls.

Further, the electric motor 30 for moving the car 100
Is designed to perform acceleration / deceleration by inverter control. Therefore, a smooth start and stop is possible.

Further, the power supply of the electric motor 30 can be performed while moving the power supply point which is a contact portion between the power supply line 19a and the power supply member 29. Therefore, the electric motor 30
And the power supply is directly connected with a single cord,
There is no danger of the cord getting tangled with the movement of the towing vehicle 20.

In the above embodiment, the car 100
The method of attaching and detaching the car 100 at the lower floor 2 has been described above, but the present invention is not limited to this, and the car 100 may be attached and detached at the upper floor 3 by extending the guide device 6 to the upper part.

[0077]

As described above, according to the present invention,
The carrier can be connected to the moving body only by engaging the clamp member with the connected member, and the connecting operation is simplified. Also,
Since no tools are required for connection, the connection operation is also simplified from this aspect. Further, since the clamp member is locked by the lock lever, the connection is not easily released, and the clamp member is safe. Furthermore, by providing a position detecting device for detecting the position of the lock lever, the connection state can be monitored, and in an emergency, safety measures such as stopping the electric operation of the moving body can be taken.

[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 an end view taken along the line AA of FIG. 1;

FIG. 3 is a longitudinal sectional view showing a detailed structure of a towing vehicle and a guide device for supporting the towing vehicle.

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

FIG. 5 is a sectional view taken along the line BB of FIG. 3;

6A is a plan view of a car, FIG. 6B is a front view thereof,
(C) is a left side view thereof, and (d) is a diagram showing a structure of a support portion of the transfer plate.

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

FIG. 8 is a perspective view showing the structure of the attachment.

9A is a cross-sectional view showing a connection state between an attachment and a shaft member, and FIG. 9B is a view taken in the direction of arrow D in FIG. 9A.

FIG. 10 is a sectional view taken along the line EE in FIG. 6 (b).

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

12A is a side view showing a blocking member and a mounting structure thereof, and FIG. 12B is a cross-sectional view taken along the line GG of FIG.

FIG. 13 is a sectional view taken along the line HH in FIG.

FIG. 14 is a diagram showing a state when a photo sensor outputs a signal.

FIG. 15 is a perspective view showing a conventional example.

FIG. 16 is a detailed view showing a mounting structure of a transport body in a conventional example.

FIG. 17 is a cross-sectional view showing a mounting structure of a transport body in a conventional example.

FIG. 18 is a diagram showing a support structure of a guide roller 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 surface 6 Guide device 9 Upper roller guide 10 Lower roller guide 11 Car guide rail part 12 Handrail part 16 Chain rack 17 Towing vehicle guide rail 19 Power supply trolley duct 19a Power supply line 20 Moving body (towing vehicle) 29 Power supply member 30 Electric motor 32 Drive sprocket 35 Driven sprocket 36 Disk 37 Photosensor 39 Safety brake 40 Connected part 42 Connected member (shaft member) 43 Lock lever 45 Spring 100 Transporter ( Car) 101 frame 104 roller support device 105 roller frame 117 guide roller 119 guide roller 120 moving base 121 caster 122 bottom plate 125 frame 132 blocking member 137 position detecting device (photo sensor) 170 attachment 1 1 clamp member 171a stopper portion 172 groove 173 lever member K carrier body (car body) L locking device

Continuing on the front page (72) Inventor Yoshihiro Kitamura 197 Kumasaka-cho, Kaga-shi, Ishikawa Prefecture Inside Daido Kogyo Co., Ltd. (72) Inventor Emi Nishino 197 I-Kumasaka-cho, Kaga City, Ishikawa Pref. ) References JP 7-48629 (JP, Y2) (58) Field surveyed (Int. Cl. ⁶ , DB name) B66B 9/08

Claims (2)

(57) [Claims] 1. A guide device provided on a stair, a moving body supported by the guide device and driven electrically along the guide device, and connected to the moving body and moved along the guide device. A moving body, the moving body has a connected member and a lock lever rotatably supported, the carrier is a carrier body on which an object to be carried is placed, A clamp member rotatably supported by the carrier body and engageable with the connected member; and in a state where the clamp member is engaged with the connected member, the lock lever is A stair climber, wherein the clamp member is locked to maintain the engaged state. 2. A spring attached to the lock lever for urging the lock lever in a predetermined rotation direction, and a stopper provided on the clamp member for holding the lock lever in contact with the spring by the urging force of the spring. And a position detection device for detecting the position of the lock lever,
And when the lock lever rotates from a lock position in contact with the stopper portion against the urging force of the spring, the electric operation of the moving body is stopped.
The stairlift described.