JPH11324379A - Safety device of mechanical parking facility - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a person from being shut in by stopping a vehicle transfer device by a controller in emergency when a rope member spread on an indoor wall of a carry-in/out parking lot room is pulled out. SOLUTION: A safety device is constituted by a wire W stretched along an indoor of a carry in/out parking lot room, a display prate 11 indicating that it is an operation part for emergency stop hung on the wire W, a limit switch 9, and a controller 20. When a person 10 shut in a carry-in/out parking lot room pulls the wire W in accordance with the display on the display plate 11, the switch 9 operates. Next, the controller 20 stops a transfer device 22 in emergency if it is in a drive condition when the switch 9 enters an operation condition and prevents the transfer device 22 from starting its drive even if it receives a drive command from a control panel 21 when the transfer device 22 is in a condition before drive. Consequently, cost can be reduced without necessitating an expensive member because the number of parts used is small and wiring construction work is simple and the safety can be improved because all operation possible scope in the carry in out parking lot room is wide.

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 mechanical parking facility, and more particularly, to an emergency stop of a mechanical parking facility when a person is trapped in a doorway. Safety device.

[0002]

2. Description of the Related Art A mechanical parking facility has a storage room and a storage room, and a vehicle is transferred between the two rooms. More specifically, first, the vehicle is guided from the entrance / exit port onto the pallet in the entrance / exit room. Then, a person is removed from the entry / exit room, and after the entry / exit room becomes unmanned, the pallets are moved to transfer the vehicle to the storage room together with the pallets. However, when a person is trapped with a person left in the entry / exit room, it is necessary to stop the mechanical parking facility in an emergency manner, and the mechanical parking facility is provided with a safety device.

[0003] As a conventional safety device of this type, for example, there is one as shown in FIG. The safety device shown in FIG. 9A detects whether or not a person is present in the entry / exit room 103 by the light emitting device 101 and the photoelectric sensor 102. That is, when a person is confined in the entry / exit room 103, the human body blocks the light beam from the light emitting device 101. Then, the photoelectric sensor 102 cannot receive the light beam, and the controller monitoring the signal from the light sensor 102 stops the transfer device in an emergency. Reference numeral 106 denotes a pallet on which the vehicle is placed.

FIG. 9B shows another safety device.
There is something like that shown in This is emergency stop switch 104
Are installed at a plurality of locations in the loading / unloading room 103, and when the switch 104 is operated, the transfer device is emergency-stopped.

FIG. 9C shows another safety device.
There is something like that shown in This is one in which mat switches 105 are laid on sidewalks on both sides of the pallet 106. The output of the mat switch 105 allows the control device to monitor whether or not a person is left on the mat switch 105.

[0006]

However, among the above-mentioned conventional safety devices, those using the photoelectric sensor 102 (FIG. 9).
In the case of (a), the vehicle or the pallet 106 during the transfer may block the light beam. In particular, if the mechanical parking system is of a circulation type, the light path must be
As 6 passes, the safety device is not activated while the vehicle is being transferred. That is, if a person is detected by the safety device before the vehicle is transferred, the transfer is not started, but when the transfer is started, the safety device is deactivated. Therefore, after the transfer is started, the trapped person cannot be detected.

Further, in a safety device having emergency stop switches 104 provided at a plurality of locations in the entrance / exit room (FIG. 9B), the number of emergency stop switches 104 usually installed is limited. The emergency stop switch 104 is not always within reach of the trapped person. If it is attempted to operate the emergency stop switch 104 from anywhere in the entry / exit room 103, it is necessary to provide an infinite number of emergency stop switches 104 in the entry / exit room 103, which is not economically practical and requires wiring. The construction is also complicated.

Further, if a safety device (FIG. 9 (c)) using the mat switch 105 is used to detect a person in the entrance / exit room 103 no matter where the person is left, a very high manufacturing cost is required. This is because the mat switch itself is expensive. Therefore, usually, the mat switch 105 is laid only in a limited area on both sides of the pallet 106, and even if a person is left outside the area where the mat switch 105 is laid, it cannot be detected.

[0009]

In order to solve the above-mentioned problems, a safety device for a mechanical parking system according to the present invention is provided.
In a mechanical parking facility for transferring a vehicle carried into an entry / exit room to a storage room by a transfer device, a cord-like member stretched along an inner wall of the entry / exit room and the cord-like member being pulled. And a control device for emergency-stopping the transfer device by detecting that the cord-like member has been pulled by the detecting device (claim 1).

Another safety device for a mechanical parking facility according to the invention of the present application is a mechanical parking facility for transferring a vehicle carried into a loading / unloading room to a storage room by a transfer device.
A cord-like member stretched along the inner wall of the loading / unloading room, detecting means for detecting a change in the tension of the cord-like member, and detecting the change in the tension of the cord-like member by the detecting means. A control device for emergency-stopping the transfer device (claim 2).

[0011] According to these, the entire stretched cord-like member serves as an operation unit, and the transfer device is emergency-stopped by operating the operation unit. Although the number of detection means is small, the operable range is wide.

In the above-mentioned safety device, the one in which the change of the tension is detected by the detecting means is connected to the cord-like member,
An elastic member for maintaining the cord-like member in a stretched state by an elastic force, wherein the detecting means detects a change in tension of the cord-like member by a displacement in a longitudinal direction of a part of the cord-like member. Then, a change in tension can be detected with a simple configuration. In this case, the detecting means may detect a change in the tension of the cord-like member due to a displacement of a connecting portion between the elastic member and the cord-like member.

In the above-mentioned safety device, the cord-like member may be stretched horizontally.

Further, in the above-mentioned safety device, there is provided a free-running support member for freely running and supporting an intermediate portion of the cable-like member near a boundary between two adjacent surfaces among the plurality of surfaces constituting the inner wall, When the cord-like member is stretched along the inner wall while being bent by the idle support member (claim 6), the operable range can be further expanded with a small number of detecting means.

In the above-mentioned safety device, if a display plate indicating that the cord-like member is an emergency stop operation unit is suspended from the cord-like member (claim 7), the display plate is provided. It attracts people's attention and increases safety.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to the drawings. First, an embodiment of a mechanical parking facility according to the present invention will be described with reference to FIGS. FIG. 1 is a view showing an entrance / exit room 1 of a mechanical parking facility in which a vehicle 4 is stored. FIG. 1 (a) is a partially cutaway front view of the entrance / exit room 1, and FIG. FIG. 2 is a plan view of a chamber 1. FIG. 2 is a diagram showing a structure around the limit switch 9 serving as a detecting means.
(A) is a front view when viewed from the direction of arrow A in FIG. 1 (b), and FIG. 2 (b) is a plan view thereof. Safety devices are employed in mechanical parking facilities. In the entry / exit room 1, a vehicle 4 carried in from an entry / exit port 2 is stored while being placed on a pallet 3. The door 7 of the entrance 2 is closed. The mechanical parking facility has a plurality of storage rooms (not shown), and the vehicle 4 carried into the storage room 1 is loaded on the pallet 3 from the storage room 1 to the storage room by a transfer device (not shown). It is transported while being placed.

The loading / unloading room 1 is rectangular in a plan view, and poles P1 to P4 are erected at four corners from the floor surface. And pole from P1 through P2, P3
A wire W is stretched so as to reach P4. The wire W corresponds to a cord-like member described in the claims. One end of the wire W is fixed to a shackle S1 attached near the tip of the pole P1. Shackles S2 and S3 are also attached to the poles P2 and P3 near their tips, and the middle portion of the wire W passes through the shackles S2 and S3. The shackles S2 and S3 that support the wire W in a free running state correspond to the free running support member recited in the claims. A mounting plate B is fixed to the pole P4. A limit switch 9 is mounted on the mounting plate B. One end of a coil spring C, which is an elastic member, is fixed to the mounting plate, and the other end of the coil spring C has a ring R
Is installed. The other end of the wire W is fixed to the ring R. The wire W is pulled by the elastic force of the coil spring C, and is maintained in a tensioned state. The mover 9a protrudes from the limit switch 9 through the ring R. Access room 1
Has an inner wall F composed of four surfaces F1, F2, F3, and F4.
As described above, the wire W is bent at substantially 90 degrees at the shackles S2 and S3. The shackle S2 supports the middle portion of the wire W near the boundary between the adjacent surfaces F1 and F2, and the shackle S3 supports the middle portion of the wire W near the boundary between the adjacent surfaces F2 and F3. I have. In this way, the wire W is stretched substantially horizontally along the three surfaces F1, F2, and F3 at a height of about 1 m from the floor surface. Six display boards 11 are suspended from the wire W. On the surface of the display panel 11 facing the entrance / exit room, the words "emergency stop wire / pull down" are written to indicate that the wire W is an emergency stop operation unit.

FIG. 3 is a block diagram showing a control system of the safety device. The limit switch 9 is connected to the control device 20 so that the control device 20 can monitor whether or not the limit switch 9 is operating. On the other hand, the control device 20 is a control panel operated by an operator of the mechanical parking equipment.
21 and a transfer device 22 for transferring the vehicle between the loading / unloading room and the storage room by transferring the pallet 3, and controls the drive of the transfer device 22 according to a command signal from the control panel 21. .

The members constituting the safety device are substantially as described above. Hereinafter, the operation of the safety device will be described.

FIG. 4 is a plan view of the storage room 1. Reference numeral 10 denotes a person trapped in the entry / exit room 1. The person 10 himself / herself drives the vehicle 4 and carries the vehicle 4 into the entry / exit room 1, and then is left in the entry / exit room 1 because the door 7 is closed before leaving the entry / exit room 1. A person. However, a plurality of display boards 11 indicating that the wire W is an operation part for emergency stop is hung on a wire W stretched along the inner wall. Therefore, the person 10 trapped in the entry / exit room 1 can know that the emergency stop of the mechanical parking equipment is performed by pulling the wire W, regardless of the position in almost any position in the entry / exit room 1. it can. In addition, since the wire W is stretched almost all around the inner wall F, the entry / exit room 1
Reachable from anywhere within. When the person 10 pulls the wire W as shown in FIG. 4, the limit switch 9 operates.

FIG. 5 is a diagram showing the state of the wire W pulled down by the person 10 and the vicinity of the limit switch 9 at this time. Before the wire W is pulled, the ring R is at a position shown by a solid line in FIG. At this time, the ring R
Is in a substantially upright state, and the limit switch 9 is in a non-operating state. When the person 10 pulls the wire W, the wire W is bent as shown by a dotted line in FIG. The coil spring C extends so that the spring force balances the changed tension, and the wire W and the coil spring C
5 is displaced to the left in FIG. As a result, the mover 9a tilts to the left. Then, the limit switch 9 is activated. That is, a change in the tension of the wire W is detected by the limit switch 9 as a displacement in the length direction of the wire of the ring R. It can also be said that the limit switch 9 detects that the wire W has been pulled.

The control device 20, which monitors the state of the limit switch 9, stops the transfer device 22 when the limit switch 9 is activated, if the transfer device 22 is already driven. At this time, if the transfer device 22 has not yet been driven, the drive of the transfer device 22 is not started even if a drive command from the control panel 21 is received. Thereby, safety of the person 10 is ensured.

As described above, in this safety device, the number of limit switches 9 is small, and the wiring to the control device 20 is simple.
Wiring work is simplified and manufacturing costs are reduced. In addition, although the number of limit switches 9 is small, the limit switches 9 can be operated from anywhere in the entry / exit room 1 via the wire W, so that safety can be enhanced.

In the safety device, even when a part of the human body of the person 10 is caught on the wire W, the limit switch 9 is activated and the transfer device 22 is stopped in an emergency. A person trapped in the entry / exit room 1 loses calmness,
It is also expected that the vehicle runs around the vehicle 4 to escape from the entry / exit room 1 without noticing the display panel 11. In such a case, when a part of the human body is hooked on the wire W, the wire W is pulled, the movable element 9a is tilted as shown by a dotted line in FIG. 5, and the transfer device 22 is stopped in an emergency.

This safety device is effective not only when a person is locked in the storage room 1 but also in the following cases. For example, after the vehicle 4 is loaded into the loading / unloading room 1 and the door 7 of the loading / unloading port 2 is closed, the vehicle 4 or the vehicle 4 may be damaged while the transfer device 22 is being driven due to failure of the parking facility.
Move on the pallet 3 or the transfer device
This is a case where the door of the vehicle 4 is opened while the vehicle 22 is being driven. In such a case, in order to minimize damage to the vehicle 4 and damage to the mechanical parking facility itself, it is necessary to make the transfer device 22 emergency stop.

FIG. 6 shows the loading / unloading room 1 showing the above case.
6A shows a case where the vehicle 4 has moved forward on the pallet 3, and FIG. 6B shows a case where the door 4a of the vehicle 4 has been opened. . FIG.
In (a), the front end of the vehicle 4 pushes the wire W forward,
In FIG. 6B, the door 4a of the vehicle 4 pushes the wire W to the side. In any case, limit switch 9
The state of the mover 9a is tilted as shown by the dotted line in FIG. 5, and the transfer device 22 is emergency stopped.

FIG. 7 is a diagram showing another embodiment of the present invention. In the embodiment of FIG. 1, one wire W is stretched along the three surfaces F1, F2, and F3 of the inner wall F.
In the embodiment of the present invention, two wires are provided,
Wires are running all over the surface. In the entry / exit room 1, poles P11 to P16 are located at the four corners and both sides of the entrance / exit 2.
Is erected from the floor. And the wire W11
It is extended from the pole P11 to reach the pole P16 via the poles P12, P13, P14, and P15. One end of the wire W11 is fixed to a shackle S11 attached near the tip of the pole P11. Shackles S12, S13, S14 and S15 are also attached to the poles P12, P13, P14 and P15 near their tips, and the wire W11 is connected to these shackles S12.
~ S15, where it is bent at approximately 90 degrees. A mounting plate B is fixed to the pole P16 in the same manner as the pole P4 in FIGS. 1 and 2, and a limit switch and a coil spring are mounted here. The wire W11 is connected to a coil spring via a ring, and the movable element of the limit switch is operated by the displacement of the ring. The wire W11 is pulled by the coil spring and tension is applied thereto, and the four surfaces constituting the inner wall F of the loading / unloading room 1 are formed.
It is stretched horizontally along F1, F2, F3, and F4. The wire W11 has a display plate 11 similar to that shown in FIG.
Are suspended.

On the other hand, the door 7 has shackles S1 on both sides thereof.
7 and the mounting plate B2 are fixed. Mounting plate B on mounting plate B2
Similarly, a limit switch and a coil spring are attached. One end of the wire W12 is connected to a coil spring via a ring, and the movable element of the limit switch is operated by the displacement of the ring. The other end of the wire W12 is fixed to the shackle S17. The wire W12 is pulled by a coil spring and is tensioned, and is stretched horizontally along the inner side surface of the door 7 forming a part of the surface F4. A display plate 11 similar to that shown in FIG. 2 is suspended from the wire W12. And mounting plate B
Both the limit switch attached to the controller and the limit switch attached to the mounting plate B2 are connected to the control device 20, and the control device 20 causes the transfer device 22 to perform an emergency stop when at least one of the limit switches is operated. Note that 21
Is a control panel.

FIG. 8 is a diagram showing still another embodiment of the present invention. In the embodiment of FIG. 7, two wires W11 and W12 are used, and the wires are stretched along all four surfaces of the inner wall F. However, the embodiment of FIG. 8 includes two wires. The wires are laid only on the two surfaces of the inner wall F. There are poles in the four corners of the entry / exit room 1
P21, P22, P23 and P24 are erected from the floor. The wire W21 is extended from the pole P21 to the pole P22, and the wire W22 is extended from the pole P23 to the pole P24. A mounting plate B is fixed to the pole P21 in the same manner as the pole P4 in FIGS. 1 and 2, and a limit switch and a coil spring are mounted here. The wire W21 is connected to the coil spring via a ring. The movable element of the limit switch is operated by the displacement of the limit switch. The wire W21 is pulled by the coil spring, is tensioned, and is stretched horizontally along the surface F1. The wire W21 has a display panel 11 similar to that shown in FIG.
Are suspended. Wire W22 also Wire W21
It is stretched along the surface F3 by the same structure as that described above. The limit switches mounted on any of the mounting plates B are connected to the control device 20, and the control device 20 makes the transfer device 22 emergency stop when at least one of the limit switches is operated. In addition, 21 is a control panel.

The embodiment of the present invention has been described with reference to FIGS. In the above-described embodiment, a wire is adopted as the cord-like member.
Various yarns such as octopus yarn, various ropes, chains and the like can also be employed. In the above embodiment, the wires are stretched horizontally, but they may be stretched so as to be at an angle to the horizontal plane. Further, in the above embodiment, the wire is pulled by the end of the wire where the displacement becomes the largest, or the change in the tension of the wire is detected. However, it is detected by the displacement of the other portion of the wire. You may. In the above-described embodiment, the displacement of the portion is detected by connecting the portion where displacement occurs to the movable portion of the switch and monitoring the state of the switch. However, the method of detecting the displacement is not limited to this, and various methods can be adopted. For example, a known non-contact type detection method such as optically detecting a displacement may be employed. Further, not only the displacement of the wire but also a tension change may be detected more directly by a pressure sensor or a strain sensor attached to the wire. In the above embodiment, a coil spring is used as the elastic member, but rubber or another type of spring can be used as the elastic member. Further, the safety device according to the present application can be applied regardless of the type of mechanical parking equipment. For example, it is applicable whether it is a rotary type or an elevator type.

[0031]

The present invention is embodied in the form described above and has the following effects.

(1) Despite the fact that expensive members are not required, the number of members is small, wiring work is simple, and the manufacturing cost is inexpensive, the operable range in the entry / exit room is widened and safety is improved. Can be enhanced.

(2) If the intermediate portion of the cord-like member is supported by the free-running support member provided near the boundary between two adjacent surfaces of the inner wall of the loading / unloading room, the operable range can be further expanded. .

(3) When an elastic member is connected to the cord-like member, the elastic force keeps the cord-like member in a stretched state, and a change in tension is detected by a displacement in a longitudinal direction of a part of the cord-like member. ,
A change in tension can be detected with a simple device configuration.

(4) If a display plate indicating that the cord-like member is an emergency stop operation part is hung from the cord-like member, attention of a person is easily drawn, and safety is further improved.

[Brief description of the drawings]

FIG. 1 is a view showing an entrance / exit room of a mechanical parking facility in which a vehicle is stored. FIG. 1 (a) is a partially cutaway front view of the entrance / exit room, and FIG. 1 (b) is a plan view of the entrance / exit room. FIG.

FIGS. 2A and 2B are diagrams showing a peripheral structure of a limit switch serving as a detecting means. FIG. 2A is a front view when viewed from an arrow A direction in FIG. 1B, and FIG. FIG.

FIG. 3 is a block diagram showing a control system of the safety device.

FIG. 4 is a plan view of a storage room.

FIG. 5 is a diagram showing a wire pulled down by a person and a state of a limit switch at this time.

6 (a) is a plan view of a loading / unloading room, and FIG. 6 (a) shows a case where the vehicle has moved forward on a pallet; FIG.
FIG. 4 is a diagram showing a case where a vehicle door has been opened.

FIG. 7 is a diagram showing another embodiment of the present invention.

FIG. 8 is a view showing still another embodiment of the present invention.

FIG. 9 is a diagram showing a conventional safety device, and FIG. 9A is a diagram showing a safety device for detecting whether or not a person is present in an entry / exit room by a light emitting device and a photoelectric sensor; FIG. 9B is a diagram showing a safety device in which emergency stop switches are installed at a plurality of locations in a storage room, and FIG. 9C is a diagram showing a safety device in which mat switches are laid on sidewalks on both sides of a pallet. .

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Entry and exit room 2 Entry and exit 3 Pallet 4 Vehicle 4a Door 7 Door 9 Limit switch 9a Mover 10 Person 11 Display panel 20 Control device 21 Control panel 22 Transfer device B, B2 Mounting plate C Coil spring F Inner wall F1, F2, F3 , F4 surface P1, P2, P3, P4 Pole P11, P12, P13, P14, P15, P16 Pole P21, P22, P23, P24 Pole R ring S1, S2, S3, S11, S12, S13, S14, S15, S17 Shackle W, W11, W12, W21, W22 Wire

Claims (7)

[Claims] 1. A mechanical parking facility for transferring a vehicle carried into and out of a loading / unloading room to a storage room by a transfer device, comprising: a cord-like member extending along an inner wall of the entering / leaving room; A safety device for mechanical parking equipment, comprising: a detecting means for detecting that the cable-like member has been pulled; and a control device for emergency-stopping the transfer device by detecting that the cord-like member has been pulled by the detecting means. . 2. A mechanical parking facility for transferring a vehicle carried into a storage room by a transfer device to a storage room, wherein the cable member is stretched along an inner wall of the storage room and the cable member. A safety device for mechanical parking equipment, comprising: a detecting means for detecting a change in the tension of the cable member; and a control device for emergency-stopping the transfer device when the change in the tension of the cord-like member is detected by the detecting means. 3. An elastic member connected to the cord-like member and maintaining the cord-like member in a stretched state by an elastic force, wherein the detecting means detects a displacement of a part of the cord-like member in a longitudinal direction. 3. The method according to claim 2, wherein a change in the tension of the cord-like member is detected.
A safety device for a mechanical parking facility as described. 4. The safety device for a mechanical parking facility according to claim 3, wherein said detecting means detects a change in the tension of said cord-like member due to a displacement of a connecting portion between said elastic member and said cord-like member. 5. The safety device for a mechanical parking facility according to claim 1, wherein the cord-like member is stretched horizontally. 6. A free-running support member for freely supporting an intermediate portion of the cable-like member near a boundary between two adjacent surfaces of the plurality of surfaces constituting the inner wall, wherein the cable-like member is provided. The safety device for a mechanical parking facility according to any one of claims 1 to 5, wherein the safety device is stretched along the inner wall while being bent by the idle support member. 7. The mechanical type according to claim 1, wherein a display plate indicating that the cord-shaped member is an emergency stop operation unit is suspended from the cord-shaped member. Safety equipment for parking facilities.