JP2004142929A - Traveling vehicle stopping device in stair lifting apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a traveling vehicle having a function for preventing the drop of a platform due to wire breakage or the like during the movement of the traveling vehicle on a sloped portion without causing a problem with the movement of the traveling vehicle on a horizontal portion in a stair lifting apparatus in which the traveling vehicle running along rails is installed in a stair room of a multi-storied building. <P>SOLUTION: This traveling vehicle stopping device comprises a towing force detection means 27 operated by detecting the lowering of a towing force due to the breakage of a running drive means and a brake means 23 operable interlockingly with a towing force detection means 27 and operating interlockingly with a tilt detection means 35 operated by detecting the tilt running of the running vehicle 4. The lowering of the towing force is detected, the tilt running is detected by the tilt detection means 25, the operating limitation of the brake means is released by the towing force detection means 27, and the traveling vehicle is stopped by the brake means 23 when these both means are operated. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stair climbing device provided in a staircase of a multi-storey building and mainly used for elevating a person. More specifically, in a stair climbing device that continuously moves a horizontal part and an inclined part, a function of stopping a traveling trolley when a wire breakage or loosening occurs during the movement of the inclined part without hindering movement of the horizontal part. The present invention relates to a stair climbing and lowering device provided.
[0002]
[Prior art]
Conventionally, as this type of stair climbing device, a device provided with a rail provided along the stairs, a chair-type boarding board provided to be able to travel on the rail, and a drive mechanism of the rail and the boarding board is known. is there.
[0003]
However, these chair-type elevating devices reduce the effective width of the stairs because the rails are installed directly on the stairs. From the point of view, it was not always enough. For this reason, a hanging stair lifting / lowering device that does not reduce the effective width of the stairs and does not hinder stair users has been developed.
[0004]
For example, as shown in FIG. 8, a rail 102 having a sloped rail portion 102 a, a traveling vehicle 103 traveling along the rail 102, and a riding tool suspended from the traveling vehicle 103 downward as shown in FIG. 104, a traveling drive device 105 that is an electric motor for driving the traveling carriage 103, and an elevating drive device for vertically moving the riding device 104 up and down. The driving motor is connected to the electric motor via a speed reducer and the like. The pinion is configured to engage a rack provided on the rail 102. In this stair climbing device, the rail 102 is disposed at a position near the ceiling of the stairway away from the stairs 101, so that the effective width of the stairs is rarely narrowed, and it is difficult for stair users to get in the way.
[0005]
However, the stair climbing device is, for example, a two-story building, between the first floor and the second floor, although there is a straight traveling part and an inclined traveling part, it is only for linear traveling in a plane, It was not possible to continuously travel between each floor of a building of three or more floors, and it was not possible to install the stair climbing device on the stairs of a building of three or more floors to continuously raise and lower the boarding platform 104.
[0006]
As shown in FIG. 9, the staircase 110 includes a plurality of landings 111 and 112 and a plurality of stairs 113, and is provided with a stair passage 114 that is three-dimensionally connected in a zigzag manner in the vertical direction. , 112 are arranged in such a manner that the inclination direction is reversed with respect to each landing 111, 112. For this reason, in order to provide the above-mentioned hanging stair climbing device in the staircase room 110 and to raise and lower the person between the third and higher floors, the space between the landing 111 on the first floor and the landing 111 on the second floor is required. As between the landing 111 on the third floor and the landing 111 on the third floor, a different stair lifting device must be provided for each of the upper and lower landings 111 and 112, and a plurality of stair lifting devices are required. Those who use these devices also need to change the stair climbing device for each landing 111. (For example, see Patent Document 1).
[0007]
In order to solve the problems of these conventional stair climbing devices, a rail that bends in a U-shape at the corner of the stair passage along the vicinity of the inside ceiling of the stair passage that is vertically zigzag in the staircase of a multi-story building, Japanese Patent Application No. 2001-041230 proposes a stair climbing device including a traveling vehicle provided so as to be able to travel on the vehicle, a board suspended from the traveling vehicle, and traveling driving means for driving the traveling vehicle. However, there has been no proposal for a stop device for the traveling vehicle to stop the traveling vehicle by detecting a decrease in traction force when traveling on an inclined rail without any trouble in traveling on the U-shaped rail at the corner portion.
[0008]
[Patent Document 1]
Japanese Patent Application Laid-Open No. 11-115752 (pages 4 to 8; FIG. 1)
[0009]
[Problems to be solved by the invention]
The present invention is directed to a stair climbing device that travels along a staircase of a building having a plurality of floors and a rail that is continuously provided along a stairway that extends in a zigzag manner in the staircase in the vertical direction. It is an object of the present invention to provide a stopping device for a traveling vehicle that does not operate when the horizontal rail of the hour shape is moved, and stops the traveling vehicle when the traction force is reduced due to wire cutting or the like during the movement of the inclined portion. No. 041230, a staircase, and a staircase which is provided continuously along a stairway that is vertically connected in a zigzag direction, and at the corner of the staircase, a rail that bends in a U-shape and can run on the rail A stair climbing and lowering device comprising: a traveling vehicle provided on the vehicle; a boarding platform suspended from the traveling vehicle; and traveling driving means for driving the traveling vehicle. When the traction force of the traction means during part running is lowered, there is provided a stop device for stopping the driving of the traveling vehicle.
[0010]
[Means for Solving the Problems]
The present invention has been made to solve the above problems, and has a guide rail continuously provided along a stairway that connects a staircase with a staircase of a multi-story building, and the guide rail can be run by a traction means. In a provided traveling vehicle, a boarding platform suspended from the traveling vehicle, and a stair climbing / lowering device including a traveling drive unit for driving the traction unit, the system operates by detecting a decrease in traction force due to a disconnection of the traveling drive unit or the like. Traction force detection means, operable in conjunction with the traction force detection means, and having brake means that operates in conjunction with the inclination detection means that operates by detecting the inclination of the traveling vehicle, traction force detection means, The present invention provides a stopping device for a traveling vehicle in a stair climbing and lowering device, characterized in that the operation of the braking device is released by the operation of both of the inclination detecting devices and the braking device stops the traveling vehicle.
[0011]
In the case of the conventional device, if the wire breaks, the wire rope looseness detecting device provided near the wire drive unit detects the wire rope tension drop due to the cutting and stops the drive motor. It took time for the wire rope slack detector to detect a drop in the wire rope tension depending on the location of the wire rope or when the wire rope was cut, but according to the present invention, the drop in the wire rope tension was immediately detected. In addition, it has the function of stopping the traveling vehicle.
[0012]
Further, as an embodiment, the brake means is always engaged with a regulating surface provided on the traction force detecting means at the upper end portion, the operation is regulated, and when the traction force decreases, the engagement with the regulating surface is released, and the braking means is restricted. Has a brake plate inserted between the traveling wheel and the rail at the time of regulation release, and at the lower end, can be disengaged from the regulation groove provided in the inclination detection means, A brake operation arm having an engagement shaft which is released from the restriction groove and whose operation restriction is released, and which is always elastically urged in the brake plate operation direction by a spring.
[0013]
Further, the traction force detecting means is provided with a connecting bracket for rotatably pivoting a connecting shaft connected to the traction wire at an upper end, and a restricting surface having a restricting surface for engaging with an engaging surface of the brake means at a lower end. Arm.
[0014]
Further, the inclination detecting means has a regulation groove having a base connected to the boarding connection fitting, engaging with an engagement shaft of the brake operation arm, and restricting rotation of the brake operation arm, and integrally with the boarding board. This is a regulating member that rotates and releases the engagement shaft of the brake operation arm from the engagement groove when tilted, and releases the regulation of the engagement shaft.
[0015]
In addition, the brake plate of the brake operation arm has an inclined surface, so that the brake plate can be easily inserted between the traveling wheel and the rail, and has an effect that the traveling of the traveling vehicle can be reliably stopped. .
[0016]
Further, as another embodiment, the regulating groove is a substantially V-shaped groove, one side of which extends an arc-shaped holding surface facing upward in the direction of the brake operating arm. Has the effect of smoothly engaging the engagement shaft when the engagement occurs.
[0017]
Further, the traveling vehicle has a limit switch provided with a plunger pressed by a brake operation arm, and the operation of the brake activation arm activates the limit switch to stop traveling driving means. Since the traveling drive motor is stopped in synchronization with the operation, there is an effect that safety can be improved.
[0018]
Furthermore, the traveling vehicle has a regulating plate that regulates the upward movement of the connecting shaft during the towing operation of the traveling vehicle, and has an effect of reducing local wear of the wire rope.
[0019]
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0020]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 is a schematic diagram showing a stair climbing device according to one embodiment of the present invention, FIG. 2 is a schematic diagram showing a connection state between a traveling vehicle and a boarding platform, FIG. 3 is an enlarged front view showing the traveling vehicle, and FIG. FIG. 5 is a right side view of FIG. 3, FIG. 5 is an enlarged front view showing a state of the traveling bogie when the tractive force is reduced during inclining travel, FIG. 6 is a front view showing the operation of the regulating plate, and FIG. FIG.
[0021]
In FIG. 1, the stair climbing device is suspended from a rail 3 provided along a stair passage 2 of a staircase 1, a traveling vehicle 4 provided to be able to travel on the rail 3, and the traveling vehicle 4. The vehicle includes a boarding platform 5 and traveling driving means such as a wire for driving the traveling vehicle 4.
[0022]
The stairway 2 of the staircase 1 includes a plurality of landings 6 and 7 and a plurality of sets of stairs 8 and is three-dimensionally zigzag in the vertical direction. One set of stairs 8 provided between the two landings 6 and 7 is arranged in a manner that the inclination direction is reversed with respect to each landing 6 and 7. One landing 6 is a first to fifth floor landing, and the other landing 7 is a middle landing located between the two floor landings 6. Each floor landing 6 is provided with a door 9 assigned to each room. The rail 3 is disposed continuously along the vicinity of the ceiling 11 inside the stair passage 2. In this embodiment, a partition wall 10 extending vertically from the first floor to the fifth floor is provided inside the stair passage 2. The rail 3 is disposed above the partition wall 10 and along the ceiling 11, and is fixed to the partition wall 10 or the ceiling 11 at a plurality of locations. At the corner of the stairway 2, the rail 3 is provided three-dimensionally bent in a U-shape. Below the rail 3, an auxiliary rail 13 is provided along the partition wall 10 and in parallel with the rail 3 at a height just about the waist of a person.
[0023]
The traveling drive means includes a plurality of sheaves 14 provided at corner portions along the rails 3, wires 15 stretched in parallel along the rails 3 via the respective sheaves 14, and wires 15 to the respective sheaves 14. A drive sheave 18 provided at an upper end of the rail 3 and driven by an electric motor 17 and a folded sheave 16 provided at a lower end of the rail 3 for traveling along the rail 3 are provided. The electric motor 17 and the drive sheave 18 are provided near the ceiling on the fifth floor.
[0024]
In this embodiment, the wire 15 is routed endlessly between a folded sheave 16 located at the lowermost end of the first floor and a drive sheave 18 located at the uppermost end of the fifth floor. Both ends of the wire 15 are respectively connected to the traveling vehicle 4 via wire end fixing tools 43.
[0025]
The corner shape of the rail 3 at the corner of the stairway 2 is bent into a three-dimensional U-shape, one end of a U-curved portion fixed horizontally is curved toward a lower straight portion, and the other end is an upper straight line. It is curved toward the part.
[0026]
At the corner of the rail 3, two sets of four sheaves 14 are arranged, and at the corner of the rail 3, as the wire 15 travels via each sheave 14, the traveling carriage 4 and the boarding platform 5 are moved. Is configured to pass while changing its direction gradually.
[0027]
In order to ensure safety, the wires 15 are wound around each of the sheaves 14 in a set of two wires. In addition to the two sheaves 14 that guide the two wires 15 on the traveling vehicle connecting side, the wires 15 are folded back. Another two sheaves are provided to guide the two wires 15 on the side.
[0028]
In the present embodiment, the stair climbing device is provided between the landing 7 of the stair passage 2 on the ground (GL) and the landing 6 on the fifth floor. There may be.
[0029]
As shown in FIG. 2A, the boarding platform 5 is suspended via a boarding connection bracket 19 rotatably provided below the traveling vehicle 4, and travels while being guided by the auxiliary rail 13. FIG. 2B shows a state of the traveling vehicle 4 and the boarding platform 5 during the inclined traveling.
[0030]
The boarding table 5 includes a seat 20, a footrest 21, and an armrest 22.
[0031]
The wire 15 connects each end of the wire 15 to a connection fitting 29 of the traveling vehicle 4 via a connection shaft 40 via a wire end fixing tool 43. As shown in FIG. 3, the connecting fitting 29 and the connecting shaft 29 side of the connecting shaft 40 are pivotally connected by universal joints 31 and 32.
[0032]
Next, an embodiment of a stop device for a traveling vehicle according to the present invention will be described with reference to FIGS.
[0033]
In the drawing, reference numeral 23 denotes a brake operating arm, which has an inclined engaging surface 23b at an upper end portion for engaging with a regulating surface 27a of a regulating arm 27 described later, and a regulating member 35 described later at a lower end portion. It has an operating portion 23c provided with an engaging shaft 23a that engages and disengages with the groove 35a. The operating portion 23c is fixed to the lower end of the brake operating arm 23, and has a support shaft 39 that locks a spring 38 that urges the brake operating arm 23 counterclockwise. A substantially flat brake member 25 is fixed to a lower portion of the inclined engagement surface 23b of the brake operation arm 23 by a fixing bolt 26. Reference numeral 24 denotes a brake operation arm support shaft that rotatably supports the brake operation arm 23. Reference numeral 27 denotes a regulating arm, on the upper side surface of which in the direction of pulling the bogie, a connecting bracket provided with a rotating shaft 30 which is linked to the wire 15 and which links a connecting shaft 40 for pulling the bogie 4 via universal joints 32 and 31. And the lower part has an inclined regulating surface 27a which engages with the engaging surface 23b of the brake operating arm 23 described above. Reference numeral 28 denotes a support shaft that rotatably supports the regulating arm 27. A regulating member 35 is engaged with an engaging shaft 23a of an operating portion 23c provided at a lower end of the brake operating arm 23, and has a regulating groove 35a at one end for regulating the rotation of the brake operating arm 23. It is fixed to the boarding connection fitting 19 and rotates integrally with the boarding 5 about the rotating shaft 41. The restricting groove 35a is a substantially V-shaped groove, and one side of the groove extends an arc-shaped holding surface 35a facing upward toward the brake operating arm 23. Numeral 38 is a spring extending through a holding shaft provided between the fixing bracket 37 and the support shaft 39 of the operating portion 23c of the brake operating arm 23, and constantly biases the brake operating arm 23 in a counterclockwise direction. When the brake operation arm 23 is operated, the brake member 25 is urged to rotate in the direction of the traveling roller 12a. 42 is a spring adjusting nut. Reference numeral 44 denotes a limit switch provided on the lower end surface of the traveling vehicle. The limit switch 44 includes a plunger 45 that presses the engaging shaft 23a of the brake operating arm 23 with a spring. When the brake operating arm 23 rotates counterclockwise, the plunger 45 operates. Then, the limit switch 44 operates to stop the traveling drive motor 17. The running rollers 12a and 12d run on the upper surface of the rail 3, and the guide rollers 12b and 12c run while contacting the lower surface or the side surface.
[0034]
As shown in FIGS. 3 to 5, the traveling vehicle 4 according to the present embodiment has an inclined engagement surface 23 b that engages with the regulation surface 27 a of the regulation arm 27 at the upper end, and a lower portion of the engagement surface 23 b. It has a substantially plate-shaped brake member 25 provided and an operating portion 23c provided with an engaging shaft 23a at the lower end for engaging with the regulating groove 35a of the regulating member 35, and rotates around the brake operating arm support shaft 24. A connection bracket 29 connected to the brake operation arm 23 and the wire 15, connected to the connection shaft 40 for pulling the carriage 4 through universal joints 32 and 31, and provided with a rotation shaft 30 that rotates in the horizontal direction; A connecting bracket 29 is fixed to an upper portion, and a lower end is provided with a regulating surface 27a which regulates rotation of the brake operating arm 23 and engages with an engaging surface 23b of the brake operating arm 23, and rotates around a regulating arm shaft 28. Regulating arm 27 and brake A restricting groove 35a is provided at one end for engaging with an engaging shaft 23a provided at one end of an operating portion 23c of the moving arm 23, and restricting the rotation of the brake operating arm 23. The base is fixed to the boarding connection fitting 19, A regulating member 35 that rotates about the rotation shaft 41 integrally with the boarding table 5 is provided. In addition, a support provided on a fixing bracket 36 is provided at a lower portion of the traveling carriage 4 to urge the brake member 25 provided on the brake operating arm 23 to rotate toward the traveling roller 12a when the brake operating arm is operated. A spring 38 is provided between the shaft 37 and a support shaft 39 provided on the operating portion 23c, and a spring adjusting nut 42 for adjusting the urging force of the spring 38 is provided.
[0035]
Next, the operation in the present embodiment will be described. As described above, according to the present embodiment, if the wire 15 or the like is cut or loosened during the operation of the traveling vehicle and the tractive force of the traveling vehicle is reduced, as shown in FIG. It is configured to rotate clockwise in FIG. 3 around the regulating arm shaft 28 to release the regulation of the rotation of the brake operating arm 23.
[0036]
On the other hand, the regulating member 35 is provided on the boarding connection fitting 19 of the boarding board 5, and when the traveling vehicle 4 shifts from horizontal traveling to inclined traveling, the braking operation arm is pivoted about the rotating shaft 41 in conjunction with the operation. 23 rotates in a direction to release the restriction of the rotation (counterclockwise direction in FIG. 3).
[0037]
Therefore, the braking member 23 detects the tilting of the traveling vehicle 4 by the regulating member 35, and the regulation of the rotation of the brake operating arm 23 by the regulating member 35 is released, and the traction force of the traveling vehicle 4 is reduced. In a state where the rotation of the brake operation arm 23 by the restriction arm 27 is released, as shown in FIG. 5, the brake member 25 is moved below the traveling roller 12 a around the brake operation arm support shaft 24 as shown in FIG. And the rails 3 (in the counterclockwise direction in FIG. 3), and the rotation of the traveling roller 12a is stopped by the wedge action of the brake member 25.
[0038]
On the other hand, when the traveling vehicle 4 travels on the inclined portion, if the traction force for towing the traveling vehicle 4 is normal, the engaging shaft 23a of the operating portion 23c of the brake operating arm 23 is released from the regulating groove 35a of the regulating member 35. The brake operating arm 23 tends to rotate around the support shaft 24 in the direction in which the braking force acts, but the engaging surface 23 b provided at the upper end of the brake operating arm 23 engages with the regulating surface of the regulating arm 27. Since the force for turning the control arm 27 in the counterclockwise direction about the rotation shaft 28 is applied by the traction force, the rotation of the brake operation arm 23 is prevented, and the braking operation is not performed.
[0039]
However, when the tractive force of the traveling vehicle decreases during traveling on the inclined portion of the traveling vehicle, as described above, the regulation of the regulating arm 27 to the brake operating arm 23 is released, and the brake operating arm 23 is supported as shown in FIG. It rotates counterclockwise about the shaft 24, whereby the brake member 25 is inserted between the traveling roller 12a and the rail 3, and the traveling of the traveling roller 12a is braked. By the operation of the brake member 25, the traveling roller 12 a tries to ride on the brake member 25. However, since the guide roller 12 b is provided on the lower surface of the rail 3 with a predetermined gap from the rail 3, the traveling roller 12 a 12a rides on the brake member 25 by the amount of the gap, and by this operation, a wedge action occurs on the brake member 25 inserted between the traveling roller 12a and the rail 3, and an action of braking the traveling vehicle 4 works. 4 is stopped. The brake member 25 has a thin end and an inclined surface on the upper surface in order to be easily inserted between the traveling roller 12a and the rail 3 and to generate a greater wedge effect. The brake member 25 is preferably made of an elastic material such as rubber.
[0040]
As described above, since the stop device utilizes the wedge effect, a large braking force can be obtained even with a small spring force, so that the structure is simplified and the cost is reduced.
[0041]
On the other hand, in the horizontal section traveling, the traveling carriage 4 and the boarding platform 5 travel in a vertical state, and the engaging shaft 23a of the brake operating arm 23 engages with the regulating groove 35a of the regulating member 35 as shown in FIG. However, since the rotation of the brake operation arm 23 is restricted, even if the restriction arm 27 releases the restriction on the brake operation arm 23 when the traction force is reduced, the rotation of the brake operation arm 23 is restricted, and the brake member 25 does not work.
[0042]
As described above, when the traction force is reduced during the horizontal traveling at the time of descending, the engagement between the regulating arm 27 and the brake operating arm 23 is released, but the regulating groove 35a of the regulating member 35 is engaged with the operating portion 23c of the brake operating arm 23. Since the engagement shaft 23a is engaged and the rotation of the brake operation arm 23 is restricted, the stopping mechanism of the traveling vehicle does not act, and the traveling vehicle can be smoothly pulled.
[0043]
In the above embodiment, reference numeral 33 denotes a regulating plate provided at the upper end of the traveling vehicle 4 to regulate the upward movement of the connecting shaft 40 during the towing operation of the traveling vehicle 4. Next, the operation of the regulating plate 33 will be described.
[0044]
When the inclined section descends, the connecting shaft 40 is under tension by its own weight, so that the traveling vehicle 4 and the wire end fixing tool 43 travel stably while maintaining a fixed positional relationship. However, when the traveling vehicle 4 continues traveling downward and moves to a horizontal portion which is a corner of the rail 3, the tension of the connecting shaft 40 due to its own weight of the platform 5 is lost, and the wire 15 is connected via the wire end fixture 43. The traveling shaft 4 is moved downward by pushing the connecting shaft 40. At this time, a force for tilting the side linked with the wire end fixing tool 43 upward acts on the connection shaft 40, and the wire 15 near the wire end fixing tool 43 comes into contact with the collar of the sheave groove of the sheave 14, and the wire 15 As shown in FIG. 6, a regulating plate 33 for regulating the upward tilt of the connecting shaft 40 is provided at the upper end of the traveling vehicle 4 to push up the wire near the wire end fixing tool 43 as shown in FIG. Operation can be prevented, local friction when the wire 3 passes through the sheave 14 can be prevented, and the life of the wire 3 can be extended.
[0045]
In addition, when the connecting shaft 40 pushes the traveling cart as described above during the downward traveling of the horizontal portion, the regulating arm 27 releases the regulation of the engaging surface 23b of the brake operating arm 23 (clockwise direction in FIG. 3). To start rotating. In the case where the regulating plate 33 is not provided, the regulating arm 27 rotates to the release end, and in this state, if the feed speed of the wire 15 is reduced for stopping, the traveling vehicle has a discontinuous traveling speed, and The platform 5 rocks, giving the passengers discomfort. In order to prevent these, as shown in FIG. 6, a regulating plate 33 is provided at the upper end of the traveling cart 4 to regulate the rotation of the regulating arm 27 to the open end, to prevent the above-mentioned swing of the boarding board, Ride comfort at the time of running in a section can be improved.
[0046]
Also, when traveling in the horizontal portion, the connecting shaft 40 travels in a state where the traveling position at the corner is shifted between the wire end fixing tool 43 and the traveling vehicle 4 as shown in FIG. Since each traveling direction changes, the traveling vehicle is towed toward the inside of the rail 3. In addition, when traveling on an inclined portion, the connecting shaft 40 is substantially parallel to the rail 3 as shown in FIG. 7B, so that the traveling vehicle 4 is towed while being positioned directly above the vehicle. As described above, since the towing direction of the connecting shaft 40 is different between the horizontal section running and the inclined section running, the restricting plate 33 has a predetermined width capable of restricting the upward movement of the connecting shaft 40 only during the horizontal section running. , And has a shape in which the upward movement of the connecting shaft 40 is free when the vehicle is traveling on an inclined portion.
[0047]
As described above, since the regulating plate 33 that regulates the upward movement of the connecting shaft 40 is provided, the sheave 14 of the wire 3 near the wire fixing tool 43 can be provided without impairing the function of the fall prevention device when the traction force of the inclined portion is reduced. It is possible to prevent local friction at the time of passage, prolong the life, and improve the riding comfort when traveling in a horizontal part.
[0048]
In addition, when the vehicle travels in a horizontal section, the connecting shaft 40 pushes the traveling vehicle 4 to travel as described above, so that a decrease in the tractive force of the traveling vehicle 4 is detected, so that there is no obstacle to traveling in this case. The operation of the brake operation arm is regulated by the inclination traveling detection means.
[0049]
【The invention's effect】
According to the present invention, the traveling vehicle has a traction force detection unit that detects a decrease in traction force of the traveling vehicle due to a wire cut or the like, an inclination detection unit that detects that the traveling vehicle is traveling on an inclined portion, and a traction force detection unit. Brake control means and the like operated by the operation of the inclination detection means, provided that the inclination detection means detects that the traveling vehicle is traveling on an inclined portion, and only when the traction force detection means detects a decrease in the traction force of the traveling vehicle, Since the brake means is actuated and the rail is pressed to stop the traveling bogie, even if a wire or the like is cut, the traveling bogie can be safely stopped and has a mechanically operated structure. Therefore, even when an electric trouble such as a power failure occurs, the stop function can be reliably performed.
[0050]
In addition, when the traveling vehicle travels horizontally, the inclination detecting means does not operate, so that the brake means does not operate and the vehicle can travel smoothly. Furthermore, the inclination detecting means includes a regulating groove having a substantially V-shaped and arc-shaped holding surface with which the engaging shaft of the brake means engages, and smoothly engages the engaging shaft with the regulating groove. be able to. Furthermore, by providing a limit switch for detecting the operation of the brake means on the traveling vehicle, the drive motor is stopped in synchronization with the stop of traveling of the traveling vehicle, so that the safety of the stair climbing device can be improved. .
[Brief description of the drawings]
FIG. 1 is a schematic diagram showing a stair climbing device according to an embodiment of the present invention.
FIG. 2A is a schematic diagram illustrating a connected state of a traveling vehicle and a boarding platform during parallel traveling, and FIG. 2B is a schematic diagram illustrating an inclined traveling state.
FIG. 3 is an enlarged front view of the traveling vehicle.
FIG. 4 is a side view of FIG. 3;
FIG. 5 is an enlarged front view of the traveling bogie when a brake is operated.
FIG. 6 is a front view illustrating the operation of the regulating plate.
FIG. 7 is a plan view illustrating the operation of the regulating plate.
FIG. 8 is a schematic view showing a conventional example of a stair climbing device.
FIG. 9 is a schematic diagram showing a conventional example of a stair climbing room.
[Explanation of symbols]
1 staircase room
2 stairs passage
3 rails
4 traveling cart
5 Boarding platform
6 landing
7 landing
8 Stairs
9 door
10 Partition wall
11 Ceiling
12a, 12d running roller
12b, 12c Guide roller
13 Auxiliary rail
14 sheaves
15 wires
16 Return sheave
17 Electric motor
18 Drive sheave
19 Boarding bracket
20 seats
21 Footrest
22 Armrest
23 Brake operating arm
23a engagement shaft
23b engagement surface
23c working part
24 Brake operating arm support shaft
25 Brake material
26 Fixing bolt
27 Regulatory arm
27a regulation surface
28 Regulator arm axis
29 Supporting members (connection fittings)
30 Rotation axis
31 Universal Joint
32 Universal Joint
33 regulation plate
34 Bearing member
35 Regulation members
35a regulating groove
35b holding surface
36 Fixing bracket
37 Support shaft
38 Spring
38a holding shaft
39 Support shaft
40 connecting shaft
41 Rotation axis
42 Spring adjustment nut
43 Wire end fixture
44 Limit switch
45 plunger

Claims (8)

A guide rail continuously provided along a stairway that connects the staircases of the multi-storey building with a stairway; a traveling carriage provided on the guide rail so as to be able to travel by traction means; In a stair climbing and lowering device provided with a boarding board provided and a traveling drive unit for driving the traction unit, a traction force detection unit that operates by detecting a decrease in traction force due to disconnection of the traveling drive unit and the like, and interlocked with the traction force detection unit. Brake means operable in conjunction with the inclination detecting means which operates by detecting the inclination of the traveling vehicle, and operates the braking means by the operation of both the traction force detecting means and the inclination detecting means. A stopping device for a traveling vehicle in a stair climbing and lowering device, wherein the regulation is released and the brake means stops the traveling vehicle. The braking means is always engaged with a regulating surface provided on the traction force detecting means at the upper end portion, and the operation is regulated. When the traction force is reduced, the braking means is disengaged from the regulating surface and the engaging surface from which the regulation is released. And a brake plate inserted between the traveling wheel and the rail when the regulation is released, and can be disengaged from a regulation groove provided in the inclination detecting means at a lower end portion. The stopping device for a traveling vehicle in a stair climbing and lowering device according to claim 1, characterized in that it is a brake operating arm having an engagement shaft for which regulation is released, and which is always elastically urged in a brake plate operating direction by a spring. . The tractive force detecting means is a regulating arm having a restricting arm having, at its upper end, a connecting fitting for rotatably pivoting a connecting shaft connected to the pulling wire, and having at its lower end a restricting surface for engaging with an engaging surface of the brake means. The stopping device for a traveling vehicle in the stair climbing device according to claim 1 or 2, wherein The tilt detection means has a regulating groove having a base connected to the board connection fitting, engaging with an engagement shaft of the brake operating arm, and restricting rotation of the brake operating arm, and integrally rotating with the boarding board. The traveling carriage in the stair climbing device according to any one of claims 1 to 3, wherein the engagement shaft of the brake operation arm is disengaged from the restriction groove when tilted, and is a restriction member for releasing the restriction of the engagement shaft. Stop device. The stopping device for a traveling vehicle in a stair climbing device according to claim 2, wherein the brake plate of the brake operating arm has an inclined surface. 5. The traveling vehicle according to claim 2, wherein the regulating groove is a substantially V-shaped groove, and one side of the regulating groove has an arc-shaped holding surface extending upward toward the brake operating arm. Stop device. The travel truck has a limit switch provided with a plunger pressed by a brake operation arm, and the operation of the brake operation arm activates the limit switch to stop the traveling drive means. A stopping device for a traveling vehicle in the stair climbing device according to any one of the above. The stopping device for a traveling vehicle in a stair climbing and lowering device according to claim 2 or 3, wherein the traveling vehicle has a regulating plate that regulates upward movement of the connecting shaft during a towing operation of the traveling vehicle.

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