JP3350630B2 - 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, and more particularly to an electric or manual wheelchair for a stair provided in a station or other public buildings. More particularly, the present invention relates to a stair climber that moves a moving body that is electrically driven along a track means provided on the stairs.

[0002]

2. Description of the Related Art Recently, the present applicants have disclosed, for example, Patent No. 25
A stair climber as shown in Japanese Patent No. 20216 and Japanese Patent No. 2527520 has been devised. The stairlift is shown in FIG.
As shown in FIG. 1 and FIG. 12, a rail member 301, a roller chain rack 302, and a guide member 303 are provided along the stairs.
The moving body 306 is supported by the rolling contact of 05. The moving body has an electric motor 307 that is rotated by power supply via a power supply means 304, and rotates the sprocket 309 by rotation of the motor, and the sprocket meshes with the chain rack 302 to rotate the sprocket 309. The moving body 306 can move along the stairs 310.

On the other hand, an elevator basket (carrier) 311 is detachably connected to the moving body 306 by connecting means 312. Two guide rollers 313 and 315 are attached to the end of the lifting basket 311 so as to protrude therefrom.
13 is in contact with the upper guide 303a of the guide member 303, and the other roller 315 is in contact with the lower guide 303b of the guide member.
It is supported in contact with.

Accordingly, the stair climbing machine connects the elevator basket 311 to the moving body 306 by the connecting means 312, and in this state, the person in the wheelchair moves into the elevator basket 311. When the moving body 306 is moved by the rotation of the electric motor 307, the elevating basket 311 is continuously pulled by the connecting means 312 and moves while being supported by the guide member 303. At this time, even when there is a landing or the like on the stairs 310 and the slope is not constant, by changing the interval between the upper guide 303a and the lower guide 303b, the elevator basket 311 is maintained in a horizontal state.

[0005]

In the above-described conventional stair climbing machine, guide rollers 313 and 315 are arranged so as to protrude in front of the basket 311 and one of the rollers 313 is moved upward by a moment caused by the weight of the basket. And the other roller 315 is in contact with the lower guide 303b, so that the guide member 303 and the elevator basket 311 need to be rigidly configured, and the guide member can be arranged only on one vertical plane. However, it could not be applied to those that bend in plan view.

Accordingly, when the above-mentioned stair climber is applied to, for example, a two-step stair with a connecting passage interposed therebetween, such as an overpass, a separate stair lift is arranged for each of the two stairs, It is necessary to raise the wheelchair to the connecting passage with one stairlift, then lower the wheelchair, cross the connecting passage by itself, and lower it again with the other stairlift, which increases equipment costs and increases It becomes twice as necessary, and the burden on station staff etc. also increases.

[0007] The applicants have provided an upper guide (rail) portion and a lower guide (rail) portion which are arranged in parallel with a predetermined interval between the upper and lower guides on a track means provided along the stairs, and which are provided with pins. There has been proposed a stair climber in which a flexible roller chain is arranged in a vertical direction, and a moving body (elevating body) is provided with an electric motor and a driving sprocket driven by the motor and meshing with the flexible roller chain. (See Japanese Patent Application No. 7-70081, not disclosed at the time of filing).

[0008] The stair climbing machine is configured such that a moving basket is integrally connected to a moving body, and the moving body is supported by guide rollers arranged in parallel with the vertically arranged guide section, so that the moving basket is in a horizontal state. While being held in the attitude, the drive sprocket is moved by being engaged with the flexible roller chain and rotating.

For example, a portion which is bent at a right angle in a plan view, such as between a stairway and a communication passage, can be easily handled because the flexible roller chain is bent in a plan view based on pins arranged in a vertical direction. Also, for example, the portion where the inclination angle is discontinuous in the vertical plane, such as between the landing and the stairs and the communication passage, based on the fact that the flexible roller chain can be curved at a predetermined curvature in the vertical plane,
Can respond.

However, since the stair lift is connected to the moving body and moves integrally in the same posture, it is necessary to arrange the moving body on the stairs (and communication passage) side of the track means. For this reason, the flexible roller chain in which the pins are arranged in the vertical direction opens from the case member on the step side thereof and engages with the drive sprocket.
In a staircase used by a large number of people such as a station, it is not preferable that a mechanical part such as a roller chain is arranged in a state of being exposed on the side of the staircase.

Accordingly, the present invention provides a roller chain which can move the elevator basket even when it is curved or bent in a plan view, such as a connecting portion between a stair and a communication passage. It is an object of the present invention to provide a stair climber that is configured such that the linear meshing member is not directly exposed to the stairs, thereby solving the above-described problem.

[0012]

According to a first aspect of the present invention, there is provided a stair climber which moves a moving body (3) along a track means (2) having a curved portion (2c) in plan view. (1) In the above (1), the orbiting means comprises a rotation support member (16, 17) arranged substantially horizontally in a longitudinal direction and a roller (18, 1) rotatably supported by the rotation support member.
9) and a guide member (7, 8) arranged in parallel with and adjacent to the upper side of the linear meshing member. 3) comprises an electric motor (9) and a rotating shaft (10) arranged substantially horizontally.
a, 11a) and a rotating meshing member (10, 11) which is rotated by the electric motor and meshes with the linear meshing member to move the movable body, and along the guide members (7, 8). And a guide roller (12, 13) for rolling, and configured to be able to integrally connect an elevator basket (15) on which an object to be conveyed is placed, and the linear meshing member (5, 6). However, in a portion that is linear in plan view, a roller chain (20) is provided, and in the curved portion, a roller (19) having a smaller diameter and a longer length than the roller (18) of the roller chain is used as the rotation support member (17). And roller support members (30, 31) for supporting the guide rollers (12, 13) are rotatably supported around the rotation shafts (10a, 11a) of the rotary meshing member, The guide member and linear engagement In part (D) of wood is curved in a vertical plane, said roller support member (30, 3
1) is a stair climber which is rotated about the rotation axis (10a, 11a) in a direction preceding the traveling direction of the moving body (3).

[0013]

According to a second aspect of the present invention, the guide members (7) and (8) and the linear meshing members (5) and (6) arranged adjacent to each other are arranged in parallel at predetermined intervals in the vertical direction. A plurality of the rotational meshing members (10) and (11) are arranged so as to mesh with the linear meshing members, respectively, and these rotational meshing members are connected to the synchronous transmission means (2).
2. The stairlift according to claim 1, wherein the stairlift is rotated at the same speed via 1).

According to a third aspect of the present invention, the linear meshing member (5, 6) is held by a case member (32) having an open lower surface, and the case member is connected to the guide member (7, 6).
8), the case member and the guide member are arranged facing the stairs or the communication path (Ur) of the track means (2), and the moving body (3) is fixed to the track means (2). The stair lift according to claim 2, wherein the stair lift is moved on the side of the stairs or on the side of the communication passage.

[0016]

According to a fourth aspect of the present invention, there is provided a pedestrian handrail (33) between the plurality of guide members (7) (8).
And a power supply means (35) for supplying power to the electric motor is provided in the stair climber according to claim 3 (see FIGS. 2 and 3).

[Operation] Based on the above configuration, the rotation meshing members (10) and (11) receive the rotation from the electric motor (9) and transmit the transmission means (21) such as a chain.
, And move at the same speed by meshing with, for example, linear meshing members (5) and (6) arranged at predetermined intervals in the vertical direction, respectively. ) Is driven horizontally while being held in a horizontal position. At this time, a person riding an electric or manual wheelchair is placed on the elevator basket (15), and the weight acting from the elevator basket is supported by the guide members (7, 8).

Further, the linear meshing member includes a roller (18, 1).
9) and its rotation support members (16, 17),
When the stairs (U) and the communication passage (Ur) are linear in plan view, a roller chain (20) is used,
When the connecting portion between the stairs and the communication passage is curved in a plan view, a roller (19) having a smaller diameter and a longer length than the roller (18) of the roller chain is rotated by a rotation support member (17) such as a pin. Supported.

As a result, the rotary meshing members (10, 11) such as the driving sprockets are, for example, guide members (7, 8).
And is engaged with the linear meshing members (5, 6) from the open lower part by being held by the case member (32) fixed immediately below the linear member. At this time, the rotation shaft (10a, 1
1a) is substantially in the horizontal direction, always maintains the meshing relationship accurately, and the linear meshing members (5, 6) such as roller chains are not exposed to the steps or the side of the communication passage. Even in the portion where the meshing member is curved in a plan view, the rotating meshing member (10, 11) does not cause meshing interference with the linear meshing member, and smoothly moves on the moving body (3).

Further, the guide members (7,
8) and when the linear engagement members (5, 6) are curved,
For example, as shown in FIG. 5, when the rotary meshing member (10) advances from the inclined position (S) to the horizontal position (F), the guide roller (12) needs to precede the rotary meshing member relatively. However, with the movement of the rotary meshing member (10), the roller support member (30) rotates around the rotation shaft (10a), and the guide roller (12) moves the weight of the moving body (3). It automatically moves in the leading direction while supporting.

Note that the reference numerals in parentheses are for comparison with the drawings, but do not limit the configuration of the present invention.

[0023]

FIG. 1 shows an overpass provided with a stair climber 1 according to the present invention.
Includes a stepped U ₁ of one of the platform, a staircase U ₂ of the other platform, composed of a communication passage Ur to contact upper ends of the stairs, are covered with a roof and side walls. The side wall 101a of the U-shaped plan configuration of the inner one of stairs U ₁ above, communication passage Ur, orbit equipment (means) 2 over the other stairs U ₂ are facilities. The stair climber 1 includes a movable body 2 that can travel by itself along the track equipment 2, and a lifting basket 15 that is detachably attached to the movable body 2.

As shown in FIG. 2, the track equipment 2 includes an upper guide member 7 and an upper linear meshing member 5 such as a chain rack arranged adjacent to each other, and a lower guide member 8 and an adjacent upper guide member 8 also arranged adjacent to each other. And an underline meshing member 6, and the upper and lower members 5, 7 and 6, 8 are disposed in parallel with a predetermined interval relatively vertically separated. Further, a handrail 33 and a power supply device (means) 35 for a pedestrian who goes up and down the stairs are arranged between the upper and lower members. It said upper and lower guide members 7, 8 and linear engagement members 5, as shown in FIG. 1, steps and landings Ua and stairs U _1, U ₂
Although the inclination angle in the vertical plane changes at the connecting portions 2a and 2c of the communication passage Ur, the upper and lower members 5, 7 and 6 and 8 keep the parallel state in the vertical plane and maintain the horizontal state. The connecting portion 2c between the stairs and the communication passage is curved at a predetermined curvature in plan view because the passage Ur extends in a right angle direction, and the upper and lower members are , Are arranged in parallel with a predetermined interval in the vertical direction. In the communication passage Ur portion 2b, the upper and lower members 5, 7 and 6, 8 are arranged parallel to each other in a horizontal state. In this way, the upper and lower guide members 7 and 8 and the linear meshing members 5 and 6 are continuously arranged facing the step side in the track facility 2.

Since the upper and lower members 7, 5 and 8, 6 are made of the same member arranged in parallel with each other, the upper members 7 and 5
Will be further described with reference to FIG. The guide member 7 has a circular cross-section, and the linear meshing member 5 is disposed immediately below the guide member 7 with the case member 32 fixed by welding or the like. The linear meshing member 5 is configured such that rotation support members 16 and 17 such as pins are disposed so that the longitudinal direction thereof is substantially horizontal, and rollers 18 and 19 are rotatably supported by the rotation support member. The linear meshing member 5 includes a roller chain 20 in the step portions U ₁ and U ₂ and the communication passage portion Ur.

That is, as shown in FIG. 10 (c), the case member 32 is disposed on the side wall and serves as a vibration-reducing guide, and is fixed to the lower surface of the side plate and the guide member 7 and the lower surface is open. And a holding plate 32c having a U-shaped cross section, and the roller chain 20 is arranged with the pins 16 and the rollers 18 held horizontally by the holding plate 32c. Further, retaining plates 32d and 32e are fixed to the side plate 32a and the holding plate 32c, respectively, so that the roller chain 20 is held in a state where the lower part of the roller 18 is opened and prevented from dropping.

Further, a curved portion 2c in a plan view.
As shown in FIG. 10 (d), the case member 32 has a machined member 32a having a concave groove 32f opening downward.
The case member 32 a is fixed to the lower surface of the guide member 7 by bolts 102. The case member 32
a has a side plate portion 32b 'which is continuous with the side plate 32b, and a pin 17 is arranged so as to penetrate in the horizontal direction and is prevented from being pulled out by a set screw. The pin 1
Numeral 7 is arranged along the curved case member 32a, with its longitudinal direction directed toward the center of the predetermined radius of curvature.

Further, a roller 19 is rotatably supported at the concave groove 32f of the pin 17. The roller 19 has a smaller diameter and a longer axial structure than the roller 18 of the roller chain 20. When a drive sprocket 10 having a vertical rotation plane, which will be described later, meshes with the linear meshing member 5, the roller chain 20 located on the vertical plane has a longitudinal direction of the chain that coincides with the rotation plane of the drive sprocket. It is sufficient if the roller 18 is slightly longer than the tooth width and is aligned with the sprocket teeth. However, when the linear meshing member 5 is curved, the linear meshing member having a predetermined curvature coincides with the rotation plane of the sprocket. Instead, the roller and the sprocket teeth are obliquely meshed with each other, and the roller 19 is configured to have a small diameter and an elongated length in the axial direction (see FIG. 8).

Further, as shown in FIG. 10 (b), the joint from the curved portion to the straight portion is a roller chain 20.
The outer (pin) link plate 20a is connected by a pin 17 ', and a roller 19' is rotatably supported by the pin. In this way, the roller chain 20 having one end fixed is held by the case member 32 as described above, and is extended to the linear portion in plan view.

Next, the moving body 3 that moves along the track equipment 2 will be described with reference to FIGS.

The moving body 3 has a frame 3a and is closed on a step side (front side) by a cover 3b which can be opened and closed. An electric motor 9 is mounted on an upper portion of the frame 3a, and an output shaft of the motor is linked to a gear 105 via a reduction bevel gear 103 composed of a hypoid gear. Further, the gear 105 is interlocked with a gear 107 via an idle gear 106. The gear 107 is rotatably supported by the frame 3a and extends in a direction (lateral direction) perpendicular to the vertical plane (lateral direction). It is fixed to. A drive sprocket (rotary meshing member) 10 is fixed to the inner side (side wall side) of the rotary shaft 10a, and a synchronous sprocket 109 is fixed to the front side (step side).

A rotating shaft 11a extending in the lateral direction is rotatably supported below the frame 3a, and a driving sprocket (rotary meshing member) 11 is fixed to the rotating shaft 11a at the back. And a synchronous sprocket 1
10 is fixed. Further, the upper synchronous sprocket 109 and the lower synchronous sprocket 110 have the same number of teeth and are interlocked with each other via the chain 21, so that both rotating shafts 10a and 11a rotate at the same speed.

The upper drive sprocket 10 and the lower drive sprocket 11 also have the same number of teeth, and mesh with linear meshing members 5, 6 such as a roller chain 20 having the same pitch from the lower opening. . Therefore, the upper drive sprocket 10 and the lower drive sprocket 1
1 moves the moving body 3 at the same speed due to its rotation, whereby the moving body 3 is held in a vertical posture in combination with the arrangement of the upper and lower linear meshing members 5 and 6 in parallel. You. Next, a structure for supporting the moving body 3 on the guide members 7 and 8 will be described with reference to FIGS. Rollers 111, 111 rotatably contacting the side plate 32b are rotatably supported at the inner ends of the upper and lower rotary shafts 10, 11, respectively. (Members) 30, 31 are rotatably supported via bearings. The arm 30,
Roller support plates 12a and 13a are fixed to the front end of the roller 31 so as to protrude in the lateral direction. Two guide (support) rollers 12, 12, 13 and
13 is rotatably supported. The two upper guide rollers 12, 12 are in rolling contact with the upper guide member 7 from above, and the two lower guide rollers 13, 13 are in rolling contact with the lower guide member 8 from above. The load acting on 3 is supported by these guide members.

A guide roller 113 is rotatably supported at the tip end of the upper roller support plate 12a via a longitudinal axis 112. The guide roller 113 rolls on the upper guide member 7 from its inner side. ing. On the other hand, as shown in FIGS. 5 and 8, plates 115, 1 extending in a direction orthogonal to the upper and lower support arms 30, 31 are provided at intermediate portions of the upper and lower support arms 30, 31.
15 are fixed, and guide rollers 116, 116 are rotatably supported on left and right portions of the plate 115. When the guide members 5 and 6 are located on a vertical plane, the guide rollers 116 and 116
6, the guide member 113 is held in contact with the guide roller 113 to pinch the guide members 5 and 6 from the left and right side surfaces, thereby preventing the movable body 3 from swinging around the longitudinal axis.

As shown in FIG. 3, above the lower guide member 8 of the track equipment 2, a power supply device 35 composed of three trolley wires is provided along the equipment.
5 is covered by a cover 117. On the other hand, at the upper end of the lower roller support arm 31, a current collecting member 118 having three current collectors respectively contacting the trolley wire is fixed.
17a and extends into the cover. The single-phase AC power supplied via the current collecting member 118 is converted into three phases via an inverter 119 and supplied to the DC electric motor 9, and connected to the electric equipment in the moving body 3. It is supplied to the electric equipment of the elevator basket 15.

An electromagnetic brake 22 is provided between the lower rotary shaft 11a and the frame 3a. The electromagnetic brake detects a pulse based on the rotation of the rotary shaft 11a when the moving body 3 advances. When it is detected that the pulse length is out of the predetermined range and that the synchronization chain 21 is disconnected,
An emergency brake that operates to stop the drive sprocket 11 is configured.

Further, a fixing member 71 composed of a rod member extending in the traveling direction is fixed to the frame of the moving body 3, and the cover 3b facing the rod member 71 is cut out to open (3c). are doing. On the other hand, the main body 15a of the lifting basket 15
Is provided with a connecting member 76, which is connected to an arm member 7 which is swingably supported by a pin bolt.
The arm member has a spring 80 stretched and abuts against a stopper 79. The arm member 7
7 has an engaging groove 77a formed at the tip (see FIG. 6), and the lifting cage 15 is connected to the moving body 3 by engaging the engaging groove 77a with the rod member 71.

A release operation lever 81 is provided facing an opening 3d (see FIG. 4) provided in the cover 3b of the moving body 3, and the lever 81 is connected to a release member 82 via a connection member 83. Based on the operation of the operation lever 81, the release member 82 lifts the arm member 77 from below, and releases the engagement between the engagement groove 77a and the rod member 71.

As shown in FIGS. 6 and 7, the elevating basket 15 has an L-shaped main body 15a in a side view. The connecting member 76 is provided at a rising portion of the main body 15a. -Two casters 99 are provided on each side. Also, the bottom plate 1 is foldably attached to the main body 15a.
21 and the front side plate 122 are connected. Furthermore, bottom plate 1
Crossover plates 123, 123 are connected to the front and rear of the base 22 so as to be able to move up and down. A plurality of support rollers 75 are provided at the lower portion of the main body 15a so as to protrude toward the mounting surface side with the moving body 3, and the support rollers 75 are fitted on rails 70 provided at the lower part of the moving body 3. When the connecting member 76 is engaged with the rod member 71 in the combined state (see FIG. 3), the lifting basket 15
Are integrally attached to the moving body 3.

Reference numerals 85 and 86 in FIG. 3 denote contactless connectors for transmitting signals from the sensors provided on the elevator basket 15 to the moving body 3. Reference numeral 125 denotes a contact connector for transmitting electricity from the moving body 3 to an alarm lamp provided on the elevator basket 15.

Next, the track equipment 2 will be described with reference to FIGS.
Are curved in plan view, ie, steps U ₁ , U
_The stabilizer 36 that mainly functions in the communication portion 2c of the communication passage Ur will be described. The guide roller 116, 116, which rolls to the side surface of the guide member 7, 8 in the curved portion in the plan view, comes into contact with the guide member 8 because the guide member 8 is curved as shown in FIG. And does not function as a steady rest of the moving body 3.

The stabilizing device (stabilizing roller means; stabilizer) 36 has a pair of longitudinal axes 37a and 39a vertically supported at a position below the frame 3a corresponding to the lower guide member 8 of the moving body 3. The same gears 37 and 39 are fitted on these shafts and mesh with each other. Arms 40, 41 are fixed to the two gears 37, 39, respectively, in a direction away from the left and right, and sliders (linear guides) 42, 43 extending in the vertical direction are fixed to the ends of these arms, respectively.

Support means 45, 46 are supported by the sliders 42, 43 via balls so as to be vertically movable. The support means 45, 46 are a block guided by the sliders 42, 43 and sleeve members 45b, 46b fixed to the block so that the longitudinal direction is horizontal.
The rotating shafts (horizontal shafts) 52 and 53 are rotatably supported by these sleeve members via bearings.

Further, arms (first support portions) 58, 59 are fixed to the distal ends of the rotating shafts 52, 53, and the shafts extending vertically downward (vertical direction) at the distal ends of the arms. The shafts 60 and 61 are rotatably supported via bearings. Plates (second support portions) 62, 63 extending in the front-rear direction in the horizontal direction are fixed to the tip of the shaft, and guide rollers 48, 49 and 50, 51 are rotatably supported on the front and rear portions of the plate, respectively. ing. The pair of guide rollers 48, 49 and 50, 51 are arranged at predetermined intervals in the traveling direction of the guide member 8 and are arc-shaped concave portions which are aligned with the guide member 8 having a circular outer cross section. And a pair of guide rollers 48, 49 and 50,
51 is configured so as to align and clamp the guide member 8 from both left and right sides in the horizontal direction.

Next, the operation of the stair climber according to the above embodiment will be described.

First, when the physically handicapped person in the electric wheelchair is under one staircase, the moving body 3 is moved to the lower part of the stairs and the elevator basket 15 stored in the storage place is moved by the casters 99. Carry to the position facing the moving object. In this state, the supporting roller 75 is introduced into the rail 70 and the engaging groove 77a of the arm member 77 is pushed into the rod member 71 so as to be engaged with the connecting member 76, thereby connecting the connecting member 76. Are integrally attached to the moving body 3.

In this state, the elevator basket 15 is expanded from the folding position shown by the dashed line in FIG. 6 to the position shown by the solid line, and the wheelchair is put in the elevator basket 15 with the crossover plate 123 further lowered. Next, the transfer plate 123 is fixed at the upright position, and the shielding plate 95 is connected, so that the transfer plate 123 can be transported. In this state, signals from various sensors are transmitted to contactless connectors 85 and 9.
6 and sent to the control unit built in the mobile unit 3 for confirmation.
In this state, the operator such as the station staff turns the start switch on.
By performing N, the electric motor 9 rotates.

The rotation of the electric motor 9 is transmitted to the upper rotating shaft 10a via a bevel gear reducer 103 and gears 105 and 106.
And to the upper drive sprocket 10. Further, the rotation of the upper rotary shaft 10a is transmitted to the lower rotary shaft 11a via the synchronous sprocket 109, the chain 21, and the sprocket 110, and the lower drive sprocket 1
1 rotates at the same speed as the upper drive sprocket 10. These two drive sprockets 10 and 11 mesh with linear meshing members 5 and 6 composed of roller chains 20 and the like having the same pitch, and the upper and lower linear meshing members 5 and 6 are installed in parallel. Upper and lower drive sprockets 10, 11
Based on the rotation at the same speed, the moving body 3 is guided by the guide members 7 and 8, and the vertical basket 15 (the bottom plate 121 of the elevator cage 15) moves forward on the stairs side of the track equipment 2 while keeping the vertical posture.

On the other hand, the weight of the elevator basket 15 is
Are mounted in a floating state, so that they all act on the moving body 3, but the weight of the moving body 3 is reduced by the guide rollers 12, 12.
Are in contact with the upper guide member 7 from above, and the guide rollers 13 are supported by being in contact with the lower guide member 8 from above. Further, the upper and lower rollers 111
Rolling contact with the side walls 32b of the upper and lower guide members 7, 8 from below, the linear meshing members 5, 6 and the drive sprocket 1
Disengagement with 0 and 11 is prevented. Further, a longitudinal roller 113 and two rollers 116, 116 provided on the arms 30, 31, respectively, are provided with guide members 7,
By holding the rail 8 in the left-right direction, in the place where the track equipment 2 is located on the vertical plane, the swing of the moving body 3 around the longitudinal axis is prevented, and the vehicle 3 runs stably.

Since the track equipment 2 is horizontal at the landing Ua of the steps U ₁ and U ₂ and the communication path Ur, it curves in a vertical plane at the connecting portion. Even at the curved portion in the vertical plane, since the pins extend in the horizontal direction, the linear meshing members 5 and 6 continuously install the roller chain 20 along the curve by bending the pin and the bush, The upper and lower linear sprockets 10 and 11, which are driven to rotate at the same speed, mesh with the upper and lower linear meshing members 5 and 6 composed of the roller chain 20, thereby changing the track equipment in a vertical plane as shown in FIG. 5. However, the moving body 3 moves while maintaining the vertical posture (the horizontal posture of the lifting basket 15).

At this time, the guide members 7 and 8 are curved (D) on a vertical plane and turned in the horizontal direction in the same manner as the linear meshing members 5 and 6, but are guided by the weight of the moving body 3. The rollers 12, 12, 13, 13 advance on the upper surfaces of the guide members 7, 8 along the curve D. In the curve, the traveling speed of the driving sprockets 10 and 11 is
Guide rollers 12, 12, 13, 1 located outside the curve
3 is required to advance at a high speed. However, each guide member 7, 8 is supported by two guide rollers 12, 12, and 13, 13, respectively, and the upper and lower two guide members 7, 8 are supported. Owing to the sharing and supporting of the load, the large weight of each guide roller 12, 12, 13, 13
Sprockets 10, 1
On the basis of the rotational force of 2, the guide rollers 12, 13 precede the horizontal state F while swinging the arms 30, 31 from the inclined position S.

Thus, even when the track equipment curves on a vertical plane such as a landing and a connecting portion with a communication passage, no special power is required for moving the guide rollers 12 and 13 forward, and each roller can be moved by a moving body. The mobile body 3 automatically follows while supporting the weight, and proceeds stably while maintaining the predetermined posture of the moving body 3.

Next, a case (2c) in which the track equipment in a plan view is curved like a connecting portion between the steps U ₁ and U ₂ and the communication passage Ur will be described with reference to FIGS. 8 and 9. When the guide member 8 'is on a vertical plane, the two guide rollers 116,
When the guide members 7 and 8 are curved, the guide roller 116 is moved by the guide member 8.
It does not function as a steady rest.

For this purpose, a stabilizing device (stabilizing roller means) 3
6 are provided. A pair of front and rear guide rollers 4 sandwiching the guide member 8 by the curve of the guide member 8
8, 49 and 50, 51 follow the curve. Then, the gears 37 and 39 rotate by the same angle via the support members 45 and 46, the sliders 42 and 43, and the arms 40 and 41, and this state is at the center of the moving body 3 on the radius of curvature center line Z, that is, the drive. With the meshing position of the sprocket 11 and the linear meshing member 6 and the meshing surfaces of the gears 37 and 39 positioned, the supporting members 45 and 46 were forcibly rotated in the opposite directions by the same angle according to the curvature of the guide member 8. Will be. As a result, the pair of front and rear guide rollers 48, 49 and 50, 51 roll while sandwiching the curved guide member 8 and are positioned in a direction perpendicular to the curve center line, that is, in a position parallel to the curve tangent. The moving body 3 (front-back direction) is held.

Further, as shown in FIG. 5, the guide member curved portion (2c) located between the stairs and the communication passage has an inclined angle which is changed in the horizontal direction even on a vertical plane. Rollers 48, 49 and 50, 51
Will also move relatively up and down. For this reason, the supporting members 45 and 46 are arranged so that the pair of front and rear guide rollers follow the guide member 8 that changes in the vertical plane direction.
Is moved by the ball sliders 42 and 43 in the vertical direction, and the front and rear guide rollers 48, 49 and 50 and 51 are moved by the guide member 8 regardless of the change in the vertical direction of the guide member.
Follow.

Also, by the change of the guide member 8 in the vertical plane direction, the guide rollers 48 nipping from both left and right sides,
The support members 45, 46 are respectively connected to the sleeve members 45b, 46b via bearings via the bearings 45, 46b.
Since the supporting member 59 is supported, the guide roller always rolls on the left and right sides in accordance with the change in the inclination angle of the guide member 8 accurately.

Further, the front and rear arms 58, 59 are rotatably supported by plates 62, 63 having rotating shafts 60, 61 on a vertical line of the guide member 8, and guide rollers 48, 49, and 50 respectively. , 51 are supported, so that the front and rear plates 62, 63 are respectively orthogonal to the guide member 8 at the front and rear positions, that is, the extension line Z ₁ connecting the center lines of the guide rollers 48, 49 and 50, 51. , Z ₂ is automatically adjusted so that toward the curve center. Thereby, each guide roller 48, 49 and 50, 5
1 is aligned with the guide member 8 having a circular cross section, so that the right and left side surfaces are accurately pinched even though the guide member is curved in a plan view.

Accordingly, even if the inclination angle of the guide member 8 changes in the vertical plane direction, the guide rollers 48, 49 and 50, 51 in front of and behind the stabilizer 36 are accurately aligned with the guide member 8 from the left and right directions. The pinching and following movements are forcibly held against the support devices 45 and 46 of the front and rear guide rollers so as to be always parallel to the curve of the guide member corresponding to the curvature of the guide member 8 and moved. The swing of the body 3, and hence the basket 15 in the curved portion in plan view, is prevented.

On the other hand, in the curved portion (2c) in plan view, as shown in FIG.
The rotation plane of (same for 10) does not coincide with the longitudinal direction of the linear meshing member 6 (same for 7) that is vertically below the guide member 8. Therefore, as shown in FIG. 10 (d), the diameter of the roller 19 is smaller and longer than that of the roller 18 of the roller chain 20.
Are arranged radially along the curve. In this state, a plurality of drive sprockets 11 (10)
Although the individual teeth mesh with the roller 19, even if the roller 19 is inclined with respect to the tooth surface of the sprocket, the meshing proceeds smoothly without interfering from the start of meshing and the moving body 3 follows the curve. Can proceed. In the above-described embodiment, the pin 17 and the roller 19 implanted in the case member 32 are used for the linear meshing members 5 and 6 without using the roller chain 20 in the curved portion in a plan view. A flexible roller chain that can be deformed at a predetermined curvature also in the longitudinal direction of the pin by connecting the link plate and the pin with a long hole or the like may be used.

The moving body 3 integrally attached with the elevator basket 15 rises along _one stair U1 while being supplied with electricity from the power supply device 35 formed of a trolley wire, and further curves in a plan view. reaches the communication passage Ur, move horizontally along the communication passage, and descends along the other stairs U ₂ curved again, reaches under the stairs. In this state,
The transfer board 123 of the elevator basket 15 is dropped, and the person in the electric wheelchair is dropped from the elevator basket 15.

At this time, in the curve portion 2c in plan view,
The rotation of the electric motor 9 is controlled so as to be slow, so that a large centrifugal force or the like does not act on the lifting basket 15 located outside the rotation of the moving body. The power supply device 35 includes a cover 1
Although the structure is such that it is difficult for the hand to enter through the slit 117a of the 17th, the slit portion may be closed with a rubber plate with a cut or the cover may be made into a labyrinth structure to prevent the hand from entering.

Also, in the event of an abnormal situation, for example, when the supply of electricity is cut off, the power supply to the electromagnetic brake 22 is also cut off and the brake is actuated immediately, the lower drive sprocket 11 is stopped and the moving body 3 is stopped. Stop on the spot. When the moving speed of the moving body is out of the predetermined range due to an abnormality of the control unit or the like, the pulse length is detected and the electromagnetic brake 22 operates to stop the moving body. Also, when the synchronous chain 21 is cut, the cut is detected and the electromagnetic brake 21 is operated.
Further, the roller chain 2 constituting the linear meshing members 5 and 6
0 is very unlikely to be cut, but even if cut, the roller chain 20 does not fall because the roller chain 20 is held in the holding plate 32c.
The meshing relationship with 0, 11 is maintained, and in this state, the electromagnetic brake 21 operates to stop the moving body.

The track equipment 2 of the above-mentioned stair climber
Although the guide members 7 and 8 and the linear meshing members 5 and 6 are arranged on the upper and lower sides, only one guide member for supporting the weight of the moving body is sufficient. In addition, upper and lower 2 arranged in parallel
The moving body may be held in a predetermined posture by the guide rollers being guided by the individual guide members. In this case, the linear meshing member only needs to apply a propulsive force to the moving body, so that 1 It may be individual. In addition, this stair climber,
The present invention is not limited to the above-mentioned overpass, and can be applied to a stair device having a portion that bends or curves in a plan view, such as a stair and a communication passage by an underpass, a stair that is bent at a right angle or the like in the middle, and a spiral stair. Furthermore, although the elevating basket is detachably attached to the moving body, the foldable elevating basket may be integrally fixed to the moving body.

[0064]

According to the first aspect of the present invention, even a staircase device having a portion that bends or curves in plan view, such as an overpass, can be handled by one continuous stairlift. However, since the rotating meshing member meshes with the linear meshing member in a vertical plane, the linear meshing member such as a roller chain is not directly exposed on the step side, and the inclination angle of the track means in the vertical plane is reduced. Even if it changes, an accurate meshing relationship can always be maintained, and the moving body can be moved reliably and accurately. Furthermore, the linear meshing member is
Roller chains can be used to reduce the cost and reliability of the parts that are linear in plan view, and rollers that are smaller in diameter and longer than the rollers of the roller chains can be curved in plan view. By using this, the rotating meshing member prevents meshing interference and enables accurate and reliable movement of the moving body.

Further, according to the first aspect of the present invention, even when the load of the moving body acting from the elevating basket is supported by the guide member via the guide roller, the guide member and the linear mesh Since the guide roller is rotatably supported by the roller support member in a portion where the inclination angle changes in the vertical plane, the guide roller is supported by the roller support member so as to support the load acting on the moving body, and Following the change in the angle, the moving body automatically rotates in a direction preceding the traveling direction of the moving body, so that the moving body can proceed smoothly while maintaining the predetermined posture.

In the present invention according to claim 2, the plurality of upper and lower rotating mesh members rotate at the same speed, so that the moving body moves while maintaining the predetermined posture and acts on the moving body. The weight is directly supported by the plurality of upper and lower guide members without exerting a large moment or the like from the lifting basket, thereby enabling a reliable and smooth movement of the moving body.

According to the third aspect of the present invention, since the linear meshing member such as a roller chain is held by the case member having the lower surface opened, dust and the like fall from the lower surface opening portion and become linear. Since the engagement member is prevented from being clogged, and the case member is fixed to the lower surface of the guide member, the case member is reinforced and protected by the guide member, and is deformed even if a large external force is applied. Therefore, reliable engagement with the linear engagement member can be maintained for a long period of time. In addition, since the case means and the guide member are arranged facing the step side and the moving body moves on the step side of the track means, the track means has a narrow structure,
The area occupied by the stairs by the present stair climber can be reduced, and hindrance of pedestrians going up and down the stairs can be minimized.

According to the fourth aspect of the present invention, the handrail for pedestrian and the power supply means are arranged between the plurality of guide members, so that the track means can be prevented from becoming wide.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an overall structure in which a stairlift according to the present invention is applied to an overpass.

FIG. 2 is a side view showing track means.

FIG. 3 is a side sectional view showing the moving body according to the first embodiment.

FIG. 4 is a plan view of the moving body.

FIG. 5 is a plan view showing a structure in which the moving body is held while moving.

FIG. 6 is a side sectional view showing a lifting basket.

FIG. 7 is a front view showing the elevating basket.

FIG. 8 is a plan view showing the stabilizer when the track means curves in a horizontal plane.

FIG. 9 is a side sectional view showing the stabilizer.

FIG. 10A is a plan view showing a state where the track means is curved on a horizontal plane. (b) is a sectional view taken along the line BB, (c) is a sectional view taken along the line CC, and (d) is a sectional view taken along the line D-C.
Sectional drawing by the D line.

FIG. 11 is an overall side view of a stair climber showing a conventional technique.

FIG. 12A shows the moving body and the orbital means of FIG.
A arrow sectional drawing.

[Description of Signs] 1 stair lift 2 track means (equipment) 2c part curved in plan view 3 moving body 5, 6 linear meshing member 7, 8 guide member 9 electric motor 10, 11 rotary meshing member (drive sprocket) 10a, 11a Rotary shaft 12, 13 Guide roller 15 Elevating cage 16, 17 Rotation support member (pin) 18, 19 Roller 20 Roller chain 21 Transmission means (synchronous chain) 30, 31, Roller support member 33 Handrail 35 Power supply means (device) )

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Hiroji Ichida 197 Kumasaka-cho I, Kaga-shi, Ishikawa Prefecture Inside Daido Industry Co., Ltd. (72) Inventor Tatsuya Ikuta 197 Kumasaka-cho I, Kaga-shi, Ishikawa Daido Industry (72) Inventor Ikuko Horimatsu 197 Kumasaka-cho, Kaga-shi, Ishikawa Prefecture Within Daido Industries Co., Ltd. (72) Tadashi Takahata 1-6-5 Marunouchi, Chiyoda-ku, Tokyo East Japan Railway Company ( 72) Inventor Kazushige Suzuki 1-6-5 Marunouchi, Chiyoda-ku, Tokyo East Japan Railway Company (72) Inventor Kaoru Sasahara 1-6-5 Marunouchi, Chiyoda-ku, Tokyo East Japan Railway Company (72 ) Inventor Hiroshi Takeda 1-6-5 Marunouchi, Chiyoda-ku, Tokyo East Japan Railway Company (72) Inventor Kenichi Nakagome Marunouchi, Chiyoda-ku, Tokyo 1-6-5 East Japan Railway Company (56) References JP-A-3-172295 (JP, A) JP-A-5-116868 (JP, A) JP-A-7-125950 (JP, A) JP-A-57-90373 (JP, A) JP-A-7-33361 (JP, A) JP-A-6-156947 (JP, A) JP-A-5-116867 (JP, A) JP-A-56-135976 (JP, U) Fully open 1984-116368 (JP, U) Fully open 58-1962 (JP, U) Fully open 60-23179 (JP, U) Fully open 1-58584 (JP, U) ( 58) Field surveyed (Int.Cl. ⁷ , DB name) B66B 9/08

Claims (4)

(57) [Claims] 1. A track hand having a curved portion in a plan view.
In a stair climber formed by moving a moving body along a step, the track means is disposed with the longitudinal direction being substantially horizontal.
A rotation support member and rotatably supported by the rotation support member
A linear meshing member having rollers, and a flat
GoAnd adjacent to the upper sideThe placed guide member and
The moving body is disposed substantially horizontally with an electric motor.
Having a rotating shaft and rotated by the electric motor,
A rotary meshing portion that meshes with the linear meshing member and moves the moving body
Material, a guide roller rolling along the guide member,
And a lifting basket for placing the object to be transported.
It is configured so that it can be connected to the body, and in the portion where the linear engagement member is linear in plan view,
It consists of a roller chain.
Rollers smaller in diameter and longer than
Supported by the rolling support memberBecome A roller supporting member that supports the guide roller,
Supported rotatably about the rotation axis of the meshing member, The guide member and the linear engagement member are curved in a vertical plane;
The roller support member is connected to the rotating shaft
With respect to the traveling direction of the moving body
,  Stair climber. 2. A plurality of guide members and linear mesh members arranged adjacent to each other are arranged in parallel at predetermined intervals in a vertical direction, and the rotary mesh members mesh with the linear mesh members, respectively. A plurality of rotating mesh members are rotated at the same speed via a synchronous transmission means.
The stairlift described. 3. The linear meshing member is held by a case member having an open lower surface, and the case member is fixed to a lower surface of the guide member. The stair lift according to claim 2 , wherein the moving body is arranged facing a stair or a communication passage, and the moving body moves on a stair side or a communication passage side of the track means. 4. The stair climber according to claim 3 , wherein a pedestrian handrail and a power supply unit for supplying power to the electric motor are arranged between the plurality of guide members.