JPH10205156A - Safety device for vertical circulation type sky-parking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely detect an abnormal drive condition in which a cage is circulated, coming off from a regular circulating track. SOLUTION: A touch-sensing line 23 is laid, longitudinal of a cage, from a passing track of a shoulder roller 4d in an upper inverting part 17 to a position slightly shifted from the track. A plug 25 connected to the touch sensing line 23 is set into a receptacle 29 formed in a barrel edge part 1a so as to feed power to a drive motor 11. During abnormal operation, the plug 25 is pulled out from the receptacle 29 if the shoulder roller 25 is brought into contact with the touch sensing line 23, and accordingly, the supply of power to the motor 11 is stopped.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a safety device for a vertical circulation type multi-story parking system in which a large number of cages are circulated in a vertical direction to allow a vehicle to enter and leave a vehicle, and more particularly to a measure for improving detection accuracy. .

[0002]

2. Description of the Related Art Generally, in a vertical circulation type multi-story parking device,
A number of vehicle mounting cages are suspended and supported on the chain wound around the upper sprocket and the lower sprocket via attachments, and each cage is raised and lowered in the vertical direction, and is inverted vertically by the upper and lower reversing parts. The vehicle is moved in and out by circulating the vehicle.

Usually, a pair of upper reversing guides each composed of two arc-shaped guide members are arranged symmetrically in the upper reversing section when viewed from the entrance / exit side.
A pair of lower inverted fringe guides comprising two arc-shaped guide members are also symmetrically disposed on the lower inverted portion when viewed from the entrance / exit side, and furthermore, an outer and inner elevating cage extending vertically therebetween. Guides are located. When each cage moves up and down, the four lower rollers provided at the four corners of the cage frame at the bottom of each cage are rolled and guided by the outer and inner lifting cage guides. While restricting the swinging in the left-right direction as viewed from the entrance / exit side, when each of the cages changes the moving direction in the vertical direction by the upper reversing cage guide or the lower reversing fred-me guide, the cage-type hanger of each cage is 2 provided on the shoulder
The shoulder rollers are rolled and guided between the guide members of the upper reversing guide and the lower reversing guide, thereby restricting the lateral swing as viewed from the vehicle entry side.

[0004] By the way, even when such a measure against roll is taken, for example, when the vehicle enters the cage with its position shifted and the load is uneven, the cage circulates in an inclined state. However, when the cage in the inclined state moves up to the reversing operation at the upper reversing portion from the raising operation, the shoulder roller may be displaced from the upper reversing fred-me guide, that is, the normal circulation path. It is very dangerous to continue.

Therefore, a safety device has been developed as disclosed in, for example, Japanese Utility Model Publication No. Hei 7-14564.
This safety device connects one end of a tactile wire to a frame supporting one upper sprocket, and connects a plug having two pins connected by a conductive wire to the other end of the tactile wire. Is extended in the middle of the upper reversing portion so as to extend in the longitudinal direction of the cage at a position slightly deviated downward from the passage locus of the lower end of the cage. On the other hand, an outlet is provided on the frame supporting the other upper sprocket, the outlet is interposed in a drive circuit that supplies power to a drive motor for operating the multi-story parking device, and both pins of the plug are inserted into the outlet. . In this state,
The wiring of the drive circuit is connected by the two pins and the conductive wires to supply electric power to the drive motor to drive the multi-story parking device.

If the shoulder roller is disengaged from the upper reversing guide when passing through the upper reversing part for some reason, the cage is caught by the tactile line,
The tactile line is pulled by the cage, both pins of the plug are pulled out of the outlet, the wiring of the drive circuit is cut off, the power supply to the drive motor is stopped, and the operation of the multi-story parking device is stopped. ing.

[0007]

However, in the safety device of the above publication, the tactile line is extended downward from the passage locus of the lower end of the cage in the middle of the upper reversing portion. It is the lower end of the cage that draws an arc when tilted, so if the tactile line is too close to the locus of the lower end of the cage, the tactile line will be pulled by a slight swing of the cage, and it is not actually an abnormal situation. On the other hand, if the tactile line is too far away from the locus of the lower end of the cage, on the other hand, if the cage shakes too much, it will not be caught in the so-called empty line and will not be caught by the tactile line, causing an abnormal situation. Will be overlooked.

[0008] The tactile line is extended inside the upper turning portion of the circulation path. In the vicinity of this point, an inner elevator cage guide for elevating the cage, a drive motor for driving the multi-story parking device, and Since the driving devices such as the upper sprocket are arranged, when the tactile line is stretched, the above-mentioned driving devices become an obstacle and the tensioning work becomes difficult, and when repairing and inspecting the driving devices, There is a problem that the tactile line becomes an obstacle, making repair inspection work difficult.

SUMMARY OF THE INVENTION The present invention has been made in view of the foregoing, and an object of the present invention is to stop an operation by accurately detecting an abnormal operation state in which a cage circulates out of a normal circulation path. That's what I did.

[0010]

In order to achieve the above object, the present invention is characterized in that the tactile line is extended outside the upper turning portion of the circulation path.

Specifically, according to the present invention, at the time of loading and unloading, a large number of car mounting cages are lifted up and down while being suspended and supported, and are circulated by being inverted up and down by upper and lower reversing portions. In the vertical circulation type multi-story parking device to be
The following solutions are provided for a safety device that stops power supply to a drive motor that drives the multi-story parking device during abnormal driving.

That is, a first solution of the present invention is that the tactile line, one end of which is connected to the device fixed side, is positioned at a position slightly deviated upward from the passage locus of the upper end of the cage in the upper inversion portion. It is stretched to extend in the direction. Further, a plug having two pins connected by a conductive wire is connected to the other end of the tactile wire. In addition, an outlet is provided on the fixed side of the device, and the outlet is provided in a drive circuit for supplying power to the drive motor, and the wiring of the drive circuit is cut off at the provided location. Then, during normal operation, both pins of the plug are plugged into an outlet, and the wiring of the drive circuit is connected by the both pins and the conductive wire to enable power supply to the drive motor. When the upper end of the cage comes into contact with the tactile line, the pin is pulled out of the outlet, the wiring of the drive circuit is cut off, and the power supply to the drive motor is stopped.

According to a second aspect of the present invention, in the first aspect, two upper and lower reversing guides are provided at the upper and lower reversing portions symmetrically with respect to each other, and these upper and lower reversing guides are provided. Then, two shoulder rollers provided on the shoulder at the upper end of each cage are rolled and guided, so that the swing of each cage at the time of inversion is regulated. Further, the tactile line extends in the longitudinal direction of the cage from the fixed side of the device and extends over the upper end of one of the upper reversing guides, and then extends over the other upper reversing guide and extends over the upper end of the other upper reversing guide. It is characterized in that it is extended to the device fixed side.

With the above arrangement, in the first and second solving means of the present invention, at the time of loading and unloading, a large number of cages are vertically inverted by the upper reversing portion (upper reversing cage guide). In this case, during normal operation in which the cages do not deviate from the normal circulation path and invert the upper reversing part, the upper end of each cage does not touch the tactile line, and both pins of the plug remain inserted in the outlet, The wiring of the drive circuit is connected by the two pins and the conductive wire connecting the pins, so that power is supplied to the drive motor and the operation of the multi-story parking device continues. On the other hand, at the time of abnormal operation in which each of the cages deviates upward from the normal circulation path and reverses the upper reversing portion, the upper end portions (shoulder rollers) of the respective cages come into contact with the tactile lines, the tactile lines are pulled, and both ends of the plug are connected. The pin is pulled out from the outlet, and the wiring of the drive circuit is cut off. Therefore, the power supply to the drive motor is stopped, the operation of the multi-story parking device is stopped, and safety is ensured. As described above, the measures against abnormalities were limited to the case where each cage deviated upward from the normal circulation path at the upper inversion section.Analysis of past accidents at the upper inversion section showed that the cage shoulder roller was This is because it often comes off from the upper side.

The tactile line comes into contact with the upper end (shoulder roller) of each cage. Usually, this type of hanging cage has an attachment attached to the upper end and is hung. The upper end of the cage (shoulder roller) is close to the attachment part of the attachment, and therefore, even if each cage shakes greatly, the upper end of each cage (shoulder roller) is less swaying and relatively stable. In each case, the cage is pulled by the upper end of each cage (shoulder roller) only during abnormal operation when it deviates upward from the normal circulation track, and does not operate incorrectly during normal operation or does not operate during abnormal operation. The driving condition is accurately detected.

Further, the tactile line is extended upward from a normal circulation path at the upper reversing part, and an inner lifting cage guide for guiding the cage up and down, and a drive motor for operating the multi-story parking device are provided. And since there are no obstacles far away from the driving devices such as the upper sprocket, when the tactile wires are stretched, the above-mentioned driving devices do not hinder the stretching work, and the driving devices are repaired. At the time of inspection, the tactile lines do not hinder the repair and inspection work, and these operations are easily performed.

In particular, in the second solution, since the tactile line extends in the longitudinal direction of the cage by the left and right upper inverted fringe guides, if one of the shoulder rollers deviates from the normal circulation path, the cage is circulated. Regardless of direction,
The deviated shoulder roller is caught by the tactile line to detect this, and the abnormal driving state is more accurately detected.

[0018]

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

FIG. 5 shows a tower-type vertical circulation type multi-story parking device. In the figure, reference numeral 1 denotes a building standing on the ground, a pair of front and rear upper sprockets 2 near the upper end inside the building 1, and a pair of front and rear lower sprockets near the lower end inside the building 1 (not shown). ) Are respectively installed, and the upper two sprockets 2 and lower sprocket on the front side and the two upper sprockets 2 and lower sprocket on the rear side include:
Each endless chain 3 is wound.
A large number of vehicle mounting cages 4 are suspended and supported on the front and rear endless chains 3 via attachments 5.
Each cage 4 supports a pallet P for mounting on a vehicle. Further, on the ground side of the building 1, an entrance / exit port 6 serving as an entrance / exit port is provided, and a door 7 is provided at the entrance / exit port 6 so as to be openable and closable. In FIG. 5, reference numeral 8 denotes an emergency exit provided on the left side of the entrance 6.

As shown in FIGS. 1 and 2, each of the cages 4 includes a cage frame 4a composed of a rectangular frame for placing and supporting a pallet P. A pair of cage frames 4a are provided at both ends in the longitudinal direction of the cage frame 4a. A gate-type hanger 4b protrudes upward, and the middle of the upper ends of both hangers 4b is connected by a connection frame 4c. Both ends of the connecting frame 4c protrude outward from the hangers 4b, and the attachments 5 are connected to the protruding ends so that the cages 4 are suspended and supported by two front and rear endless chains 3. . Also,
Two shoulder rollers 4d are rotatably mounted one by one on both shoulders at the upper end of the hanger 4b at the back (left side in FIG. 1) when viewed from the entrance / exit port 6 side of the hanger 4b. At the same time, a lower roller 4e is provided at each of the four corners of the cage frame 4a.
Is rotatably mounted.

A machine base 9 is disposed near the upper end inside the building 1 and supported by front and rear receiving beams 10. The machine base 9 has a drive motor 1 for operating a multi-story parking device.
1 and other driving devices are installed, and the driving motor 11 is drivingly connected to the front and rear two upper sprockets 2 by a driving shaft 12 and gears 13, 14, 15, and 16. At the time of loading and unloading, the front and rear two upper sprockets 2 are rotated by the activation of the drive motor 11, so that the multi-story parking device is operated to raise and lower the cages 4 in a vertically supported state while the respective cages 4 are suspended and supported. The locations where the sprocket 2 and the lower sprocket are installed are defined as an upper reversing portion 17 and a lower reversing portion (not shown).
It is made to enter and leave.

Two upper reversing fredging guides 18 are symmetrically arranged in a substantially "C" shape on the back side of the upper reversing section 17 when viewed from the entrance / exit port 6 side. Two lower reversing fringe guides (not shown) are arranged symmetrically in a substantially inverted “C” shape also on the back side when viewed from the entrance 6 of the unit. Each of the upper and lower inverted fringe guides 18 and 18 is formed by arranging two arc-shaped guide members 19 made of L-shaped steel at predetermined intervals above and below. The upper end shoulder roller 4d is rolled and guided to restrict the roll of each cage 4 at the time of inversion.

Two vertical lifting units 20 are provided on the left and right between the upper reversing unit 17 and the lower reversing unit. Each of the vertical lifting units 20 has an outer lifting cage guide extending straight in the vertical direction. A total of four 21 and one inner elevating cage guide 22 are arranged in front and rear. The four lower rollers 4e are rolling-guided one by one to these outer and inner lifting cage guides 21 and 22 so as to regulate the horizontal swing of each cage 4 at the time of lifting and lowering.

In the multi-story parking device configured as described above,
The safety device A, which is a feature of the present invention, is provided. When the cage is circulated out of the normal circulation path in an abnormal operation, the safety device A is operated to stop the power supply to the drive motor 11. To prevent accidents from occurring or to spread. In FIG. 5,
In drawing, the safety device A (the tactile line 23 described later) is indicated by a two-dot chain line so as to be easily distinguished from other members.

The safety device A is provided with a tactile wire 23 made of a string such as a wire. As shown in FIG. 3, one end of the tactile wire 23 is connected to the skeleton of the building 1 on the device fixed side. Are connected by eyebolts 24 to the body edge 1a which constitutes a part of. A plug 2 is connected to the other end of the tactile line 23.
5, the plug 25 is provided with two pins 27 protruding from the case main body 26, and both pins 27 are connected by conductive wires 28 in the case main body 26.

The upper ends of the upper guide members 19 constituting the upper and lower inverted fringe guides 18 both extend inwardly from the upper ends of the lower guide members 19, and eyebolts 24 are respectively attached to the extended portions. Have been.

The tactile line 23 extends in the longitudinal direction of the cage (from the entrance 6 side to the back side) from the trunk edge 1a and extends at the upper end of the one upper reversing guide 18 (the extension of the upper guide member 19). It is hung over the eyebolt 24, and further extends toward the other upper reversing fringe guide 18 to the upper end (the upper guide member 19).
After being laid over the eyebolt 24 of the extension portion), the extension extends toward the body edge 1a. The eyebolt 24 is attached to the guide member 19 through which the shoulder roller 4d of the cage 4 passes.
Above the interval.

On the other hand, an outlet 29 is provided on the body edge 1a, and the outlet 29 is provided on one wiring 31a of a drive circuit 31 for supplying electric power from the power source 30 to the drive motor 11, and the outlet 29 is provided. The wiring 31a is divided at the location. Then, by inserting both pins 27 of the plug 25 into the outlet 29, the wiring 31 a is connected by the both pins 27 and the conductive wire 28. In this connection state, the tactile line 23 extends in parallel with the cage longitudinal direction at two positions at positions slightly deviated upward from the passage locus of the shoulder roller 4d, which is the upper end of the cage 4, in the upper reversing portion 17. Have been. The driving circuit 3
An emergency stop switch 32 is provided on one of the wires 31a, and a drive switch 33 is provided on the other wire 31b.

During normal operation, both pins 27 of the plug 25 are plugged into an outlet 29 with the drive switch 33 turned on, and one of the wires 31 a of the drive circuit 31 is connected to the pins 27 and the conductive wire 28. Thus, power can be supplied to the drive motor 11. That is, during normal operation in which each cage 4 reverses the upper reversing portion 17 without deviating from the normal circulation path, each shoulder roller 4 d does not contact the tactile line 23, and both pins 27 of the plug 25 are inserted into the outlet 29. Is left standing. Therefore, the wiring 31a of the drive circuit 31 is connected by the two pins 27 and the conductive wire 28 connecting the pins 27, whereby the electric power is supplied from the power supply 30 to the drive motor 11 to continuously operate the multi-story parking device.

On the other hand, during an abnormal operation in which the shoulder roller 4d of each cage 4 circulates in a state deviating upward from the normal circulation path, the shoulder roller 4d contacts the tactile line 23 and pulls the tactile line 23. Both pins 27 of the plug 25 are pulled out from the outlet 29 to disconnect the one wiring 31a of the drive circuit 31, thereby stopping the power supply to the drive motor 11 and stopping the operation of the multi-story parking device, Safety can be ensured.

Also, during normal operation, even if each cage 4 rolls greatly, the shoulder roller 4d is close to the suspension fulcrum, and is guided by the upper reversing guide 18, so that the roll fluctuation is small. Therefore, the tactile line 23
In the upper reversing part 17, each cage 4 is pulled by the shoulder roller 4d only during abnormal operation in which the cage 4 is deviated upward from the normal circulation path, so that it is possible to prevent erroneous operation during normal operation or operation during abnormal operation. It is possible to accurately detect the abnormal operation state.

Further, the tactile line 23 is connected to the upper reversing portion 17.
The tactile line 23 is extended from the normal circulation path at
The drive motor 11 and the drive devices such as the upper sprocket 2 are located at a distance from each other so that they do not hinder the work of stretching the tactile wires 23, and when the drive devices are repaired and inspected, the tactile wires 23 are repaired and inspected. These operations can be easily performed without disturbing the operations.

Further, even if one of the shoulder rollers 4d deviates from the normal circulation path, the shoulder roller 4d is quickly moved by the tactile line 23 extending in the longitudinal direction of the cage from one of the left and right upper reversing guides 18 regardless of the circulation direction of the cage. It is possible to detect the abnormal operation and to detect the abnormal operation more quickly.

[0034]

As described above, according to the present invention,
The tactile line is extended so as to extend in the longitudinal direction of the cage at a position slightly deviated upward from the path of passage of the upper end of the cage at the upper inversion part, and during abnormal operation, it is relatively stable without being greatly affected by the rolling of the cage The power supply to the drive motor was stopped by disconnecting the wiring of the drive circuit that supplies power to the drive motor by bringing the upper end of the cage into contact with the tactile wire, pulling out the plug from the outlet, and stopping the power supply to the drive motor. It is possible to accurately detect the operating state without error and to ensure safety. In addition, since the tactile line is slightly extended upward from the passage locus of the upper end of the cage, that is, above the inner lifting cage guide, the driving motor and the upper sprocket, etc. The work can be easily performed without hindering the extension work and the repair and inspection work.

[Brief description of the drawings]

FIG. 1 is a side view showing an internal structure of an upper turning part of a vertical circulation type multi-story parking device.

FIG. 2 is a front view showing an internal structure of an upper turning portion of the vertical circulation type multi-story parking device.

FIG. 3 is a plan view showing an arrangement of tactile lines.

FIG. 4 is a circuit diagram of a drive circuit in which wiring is connected by plugs.

FIG. 5 is a schematic configuration diagram of a vertical circulation type multi-story parking device.

[Explanation of symbols]

 1a Body edge (fixed side of device) 4 Cage 4d Shoulder roller (upper end of cage) 11 Drive motor 17 Upper reversing part 18 Upper reversing fredging guide 23 Tactile wire 25 Plug 27 Pin 28 Conductive wire 29 Outlet 31 Drive circuit 31a Wiring A Safety device

Claims (2)

[Claims] 1. A vertical circulation type multi-story parking device which vertically moves up and down while a large number of car mounting cages are suspended and supported at the time of loading and unloading, and which is vertically inverted and circulated by upper and lower reversing portions. The safety device for stopping power supply to a drive motor for operating the multi-story parking device during abnormal driving, wherein the cage longitudinally extends at a position slightly deviated upward from a passage locus of an upper end of the cage in the upper reversing portion. A tactile line that is extended in the direction, and has one end connected to the device fixed side; a plug having two pins connected to the other end of the tactile line and connected by a conductive wire; And an outlet interposed in the drive circuit for supplying power to the drive motor and disconnecting the wiring of the drive circuit at the interposed portion.In normal operation, both pins of the plug are connected to the outlet. The two pins and the conductive wire connect the wiring of the drive circuit to enable power supply to the drive motor. A safety device for a vertical circulation type multi-story parking device, wherein the safety device is pulled out from an outlet by being in contact therewith, disconnects wiring of the drive circuit, and stops power supply to the drive motor. 2. The upper and lower reversing portions, in which upper and lower reversing portions guide two shoulder rollers provided on shoulder portions at upper ends of the respective cages so as to guide the rolling of the respective cages when reversing. Two furedome guides are provided bilaterally symmetrically. The tactile line extends in the longitudinal direction of the cage from the fixed side of the device, is bridged over the upper end of one upper inverted furedome guide, and further extends to the other upper inverted furedome guide side. 2. The safety device for a vertical circulation type multi-story parking device according to claim 1, wherein the safety device extends over the upper end of the upper reversing fred-me guide, and then extends to the device fixing side.