JPH06257317A - Malfunction preventing control device in lower step side pallet of multistory parking lot - Google Patents

Abstract

PURPOSE:To prevent malfunction occurring during the traverse motion of the lower step side pallet of a multistory parking lot which is automatically controlled by a pallet conrol device. CONSTITUTION:A kicker 5 to stop a lower step side pallet P1 on the floor face of a parking lot is arranged, and a limit switch 1 which acts and outputs a stopping signal when it comes into contact with the kicker 5 is provided in the lower step side pallet. A stopper 9 to prevent the lower step side pallet from slipping off further from a stopping position in a direction where transverse motion is carried out is arranged on the floor face of the parking lot and the lower step side pallet is provided with a striker 10 which abuts on the stopper to check the overtraverse motion of the pallet. When the striker abuts on the stopper, the limit switch 1 does not get over the kicker, and in addition, even when the pallet is vibrated and shaked by getting in and out the vehicle, since a pallet control device stores the previous stopping position of the lower step side pallet, if the same kicker actuates the limit switch, the control after that is not put out of order.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a malfunction prevention control device for a lower pallet of a multistory parking lot, and more specifically,
In a multi-story parking lot where a plurality of parking spaces lined up on the left and right are formed vertically, with the lower pallet traversing one section to the left or right for one section, the pallet swings when the vehicle enters or leaves or gets in or out. The present invention relates to a control device capable of preventing malfunction of the pallet control device due to re-operation of a limit switch that has detected a stop position when vibration or vibration occurs.

[0002]

2. Description of the Related Art Due to a shortage of parking lots, in recent years, multi-story parking lots having a plurality of parking sections arranged in the left-right direction at upper and lower stages have been constructed. In such a multi-stage double-row parking facility, a pallet that moves up and down when loading and unloading is arranged in the uppermost parking section, and pallets that can be moved up and down and traverse in each stage except the uppermost stage and the lowermost stage. Is adopted. Then, it is a general structure to arrange a pallet that only traverses at the bottom. In order to allow vehicles to be loaded and unloaded from any of these pallets, an extra space is provided on the side of the parking compartment in each stage except the top stage. When the vehicle stored in the upper tier is to be unloaded, the pallet located directly below the pallet can be traversed in either the left or right direction to secure a space in which the upper pallet moves up and down. In such a type of equipment, it is sufficient that the pallets on each stage except the uppermost stage can be reciprocated between two adjacent sections, and the above-mentioned extra space is enough for one section. On the other hand, in order to move a vehicle into and out of a desired pallet, not only the pallet must be moved up and down, but also the pallet directly below must be moved. Requires a series of control sequences.

The pallet traverse control device that enables such control stores the stop positions of all pallets at the present time, that is, whether the forward movement or the backward movement is completed. When a pallet to be loaded or unloaded is newly designated, a command to sequentially traverse the lower pallet is issued so as to secure the elevating space. In this case, if the multi-storey car park is, for example, three levels, and each level has four compartments, and the rightmost pallet on the top level is specified
If the section immediately below it on the second level is not open, some of the pallets on the second level are traversed to open that section, and if the section immediately below is not open on the bottom level, it is necessary to open that section. A number of pallets are moved. At that time, whether or not each of the sections immediately below is open to secure the descending space is determined based on the signal stored when each pallet took its current position, and the desired movement is performed accordingly. Orders have been issued. Of course, when the loading and unloading is completed, the pallet is raised, the pallets in the second and bottom tiers remain at the changed positions, and the completion of the trip or the return is stored as it is. To detect the current position and store the current position, each pallet is equipped with a limit switch, and a kicker for operating the limit switch is provided near the traverse rail of the pallet or on the floor surface. Although it is sufficient for each pallet to reciprocate between the two adjacent sections on the left and right, the kicker described above detects that it is located in the left section and that it is located in the right section. It is installed in each section.

[0004]

By the way, the above-mentioned limit switch is generally operated by merely contacting or abutting with a kicker. Therefore, the pallet stops when the limit switch operates. However, it is unavoidable that the pallet vibrates or swings when getting in and out, and much more, since the vehicle is put in and out of the pallet at the bottom, the vibration and swing that occur at that time will be even greater. It gets fierce. If vibrations etc. occur and the pallet shakes in any of the transverse directions in this way, the limit switch that detects that it is in the stop position comes off the kicker,
It may happen that the pallet is not in the stop position. Then, if there is a swing back, the limit switch will hit the same kicker again. Not only that, but most seriously, if the pallet slightly overruns and stops past the kicker, when the pallet is moved backward in that state, the limit switch immediately hits the kicker immediately before. . The signal that the pallet has moved forward and the limit switch has been operated by the kicker has already been input to the pallet control device.Therefore, if the limit switch operates again due to rocking or operates in reverse contact, that signal will be input to the pallet control device. , The pallet will be stored as having completed the retrace.
When such a situation occurs, there is a problem that the control itself is confused by the fact that the outward movement is started even if the pallet is made to go backward, or the opposite phenomenon occurs.

The present invention has been made in view of the above problems, and its purpose is to prevent overrun at the stop position of the lower pallet and to detect that the pallet has already stopped by the operation of the limit switch. Even if the pallet vibrates or swings due to loading and unloading operations and the limit switch comes off the kicker or comes into contact with the kicker again, it does not give an erroneous signal that it has gone or gone backwards. By providing a malfunction prevention control device for the lower pallet of the multi-storey parking lot, it is possible to prevent malfunction of the pallet by using the pallet. is there.

[0006]

DISCLOSURE OF THE INVENTION The present invention is a multi-storey parking lot in which a pallet on which a vehicle to be discharged is placed is lowered to the lowermost stage, and when lowering the upper pallet to the lowermost stage, Applied to a pallet traverse control device that traverses a lower pallet located immediately below the upper pallet by one section and stops at a predetermined position, and next time traverses one section in the opposite direction. To be done. Its characteristic feature is that, as shown in FIG. 1, kickers 5 and 5 (see FIG. 11) for stopping lower pallets P ₁₁ , P ₁₂ , P ₁₃ (see FIG. 5) traversing the floor surface of the parking compartment. ) Is arranged, and the limit switches 1, 2, which output a traverse stop command signal for the lower pallets P ₁₁ , P ₁₂ , P _{13 when} the lower pallets come into contact with a kicker.
3 is provided. Make sure that the lower pallets P ₁₁ , P ₁₂ , P ₁₃ do not shift in the traversing direction at the position where they should stop, and that the limit switches 1, 2, 3 do not exceed the kickers 5, 5. While stoppers 9 and 9 are arranged on the floor surface of the parking compartment, lower pallets P ₁₁ and P ₁₂ ,
The strikers 10, 1 that come into contact with the stoppers 9, 9 are attached to P _13.
0 (see FIG. 11) is attached. Not only when the limit switches 1, 2 and 3 detect the completion of the traverse of the lower pallets P ₁₁ , P ₁₂ and P ₁₃ , but also when the lower pallets P ₁₁ , P ₁₂ and P _{13 in} the stop position are compared with the previous traverse. The pallet control means 60 is provided with the stop position storage unit 21 that stores the current traverse stop position of the lower pallet even when it swings in the opposite direction and is displaced from the stop position.

[0007]

When the lower pallet of the multi-story parking lot needs to be traversed, the lower pallets P ₁₂ and P ₁₃ that must be traversed are forwarded to, for example, adjacent sections. When the limit switches 2 and 3 come into contact with the kickers 5 and 5 due to the forward movement, the limit switches 2 and 3 operate, and the output signal thereof is generated by the pallet control means 60.
Is input to. By this signal, it is stored that the forward movement of the lower pallets P ₁₂ , P ₁₃ is completed, and
A stop command for the forward movement of the lower pallet is output. Even if the forward movement is continued for a while due to the inertial force of the traverse of the lower pallet, the strikers 10, 10 contact the stoppers 9, 9,
Further traveling of the lower pallets P ₁₂ , P ₁₃ is blocked. Then, the lower pallets P ₁₂ and P ₁₃ are kept in predetermined sections and stopped so that the limit switches 2 and 3 do not go over the kickers 5 and 5, and then the limit switches are reversed to cause confusion. Generation of false signals is avoided. Incidentally, when the vibration or swing goods movements and passengers getting on and off operation of the vehicle in the lower side pallet P ₁₂ occurs, the striker its forward stroke swing in the direction is in contact with the stopper 9 in the same manner as above 10 Is prevented by. On the other hand, the striker 10 when shaken in the backward direction
Will be separated from the stopper 9. If the swing is large, the limit switch 2 also comes off the kicker 5. However, even if the limit switch 2 that outputs the forward completion signal is separated from the kicker 5 or if swinging back occurs, the stop position storage unit 21 of the pallet control means 60 causes the lower pallet P ₁₂ to move. The current traverse stop position of is stored, and when the next traverse of the lower pallet, the traverse is not processed if the traverse has already been completed, and confusion in the subsequent control It will never come.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the drawings. 5 is a rear view of the multi-storey parking lot 50 to which the malfunction prevention control device of the present invention is applied, FIG. 6 is a side view thereof, and FIG. 7 is a plan view thereof. This is provided with upper and lower two-tiered parking spaces 51, 52, and the lower tiered parking space 51
Is provided with, for example, three lower pallets P ₁₁ , P ₁₂ , P ₁₃ that can be traversed while the vehicle is placed on the left and right, while the upper parking space 52 is provided with the vehicle. upper side pallet _{P 21, P 22, P 23} , P 24 is provided so as to be aligned in the left and right that can be lift while. When leaving a vehicle from the upper parking space 52 of the multi-level parking lot with such a two-tiered structure, the lower pallet P ₁ located in the parking space 51 immediately below the vehicle is traversed in either the left or right direction. By doing so, one space for raising and lowering for the upper pallet P ₂ can be secured. Then, the upper pallet P ₂ on which the vehicle to be unloaded is placed can be lowered to the lower tier by unwinding the elevating chains 8, 8 (see FIG. 6).

This multi-storey car park 50 has six pillars 53, 5
3 and the upper and left beams 54, 54 and the front and rear beams 55, 55 form a skeleton. The vehicle can be taken in and out only in the lower parking space 51 facing the loading / unloading opening 56 on the ground. These parking spaces 51, 52
In the upper parking space 52, the suspension 4 having a device for moving up and down the upper pallet P ₂ is mounted. The suspension 4 may be a frame having high rigidity, and an upper frame (not shown) mounted on the left and right beams 54, 54 may be used. In the upper parking space 52, four upper and lower pallets P ₂₁ , P ₂₂ , which are suspended from the suspension body 4 and are arranged side by side on the left and right,
There are P _23, P _24, and to allow parking the vehicle 64-67, respectively. And the lower parking lot floor surface 51A
There are three traversable lower pallets P ₁₁ , P ₁₂ , P ₁₃
Are provided and vehicles 61 to 63 are mounted on each of them, and a total of 7 vehicles can be parked.

By the way, as shown in FIGS. 8 and 9,
Lower pallet P installed in lower parking space 51
₁ is a plate member 13 arranged on the left side 11L and the right side 11R
a, 13a and plate members 13b, 13 attached to the inside thereof
The vertical girders 11a and 11b each including b, the horizontal girders 11c and 11d of the hollow horns arranged on the side where the loading / unloading port 56 is located and the rear portion 57 side and extending in the left-right direction, and the lateral girders 11c and 1
It is formed in a frame body with several horizontal girders 11e, 11e arranged between 1d. The main body of the lower pallet P ₁ has the frame body and the wavy bottom plate 11 m stretched over the frame body.
And an inclined plate 11n integrated with the front of the wavy bottom plate 11m
(See FIG. 6). The above plate member 13a is shown in FIG.
4, which is a view taken along the line IV-IV in FIG. 4, is bent at several places and extends in the front-rear direction, and is connected to the lower surface of the corrugated bottom plate 11m on which the vehicle is placed. On the other hand, the plate member 13b
Is bent at one place and extends in the front-back direction, and the plate member 1
It is connected to the inner surface of 3a and the upper surface of the wavy bottom plate 11m. Incidentally, stringer 11a, the upper surface of 11b is higher than the upper surface of the corrugated bottom plate 11m, also serves as a travel guide for the vehicle at the time of entry and leaving the lower side pallet P _1. Such a lower pallet P ₁ has a traverseable structure, and is provided with the traverse driving means 30 shown in FIG. This is a geared motor m mounted on the left side 11L of the rear part 57 and its drive shaft 3
Drive wheel 32A having V-shaped groove attached to 1a
And a driven wheel 32B having a V-shaped groove arranged on the right side 11R and two driven wheels 32C, 3 on the loading / unloading port 56 side.
2C and. On the other hand, in the front part of the parking lot floor surface 51A, as shown in FIG. 8, a flat rail 33B is laid so as to extend in the left-right direction via a plate member, and in the rear part, a triangular shape formed of angle steel. The rail 33A is laid. The rail 33A has drive wheels 32A and driven wheels 32B, and the rail 33B has left and right driven wheels 32A.
C and 32C are mounted, and it is considered that the lower pallet P ₁ does not meander when traversing. Not only that, the lower pallet P ₁ stopped on the rails 33, 33 has a triangular rail 33A, a drive wheel 32A and a driven wheel 32B, so that the pallet in the front-rear direction generated when the vehicle gets in and out of the vehicle is started. It is less susceptible to shaking and vibration.

On the parking lot floor surface 51A on which such rails 33, 33 are laid, as shown in FIG. 10, kickers 5, 5 for stopping the traversing lower stage pallet P ₁ are arranged and the lower stage Stoppers 9 and 9 for preventing the side pallet P _{1 from} being further displaced from the stop position in the transverse direction are provided with lower pallets P ₁₁ , P ₁₂ , and P ₁₃ , respectively.
It is arranged corresponding to each. As shown in FIG. 11 in which the arrangement intervals of the individual kickers 5 and stoppers 9 are shortened and enlarged, the parking lot floor surface 51A is provided with a base plate member 6A having elongated holes 6a for adjusting the mounting position thereof, 6C and 6E are bolted. On the upper surface thereof, an arrow M in FIG.
Kickers 5A, 5C and 5E for stopping the lower pallet P ₁ which has moved backward in the direction indicated by are integrated respectively. Each kicker 5A, 5C, 5E is shown in FIG. 2 and FIG.
As shown in (1), one plate member is bent at two places, and is provided with an inclined surface 5a that comes into contact with or abuts on the rolling wheels 7b of each lever 7a of limit switches 1, 2, and 3 described later. In addition, as shown in FIG. 10, the base plate member 6A,
6E are arranged on the side close to the entrance / exit 56, and the base plate 6
C is arranged on the rear side thereof. In addition, foundation plate members 6B, 6D, 6F are also bolted to the parking lot floor surface 51A, and the lower pallet P ₁ that has moved in the direction indicated by the arrow N in FIG. 10 is stopped on the upper surface thereof. Kicker 5
B, 5D and 5F are attached respectively. These kickers 5B, 5D, 5F are the above kickers 5A, 5C,
An inclined surface 5b opposite to the inclined surface 5a of 5E (see FIG. 4)
And the left-right direction is longer than the kickers 5A, 5C, 5E. Therefore, the base plate members 6B, 6D, and 6F have a wide width (see FIG. 11), and the forward limit and the backward limit can be visually distinguished. In addition,
The base plate members 6B and 6F are arranged on the same line as the base plate members 6A and 6E, and the base plate member 6D is aligned with the base plate member 6C. The functions for the lower side pallet P ₁₁ kicker 5A, 5B are paired, similarly, kicker 5C, 5D is for lower-side pallet P ₁₂ in pairs, kicker 5E,
5F functions as a pair for the lower pallet P ₁₃ . When the lower surface pallet P ₁₁ shown in FIG. 5 goes back to the left section which is the space 51a shown in FIG. 5, the inclined surface 5a of the kicker 5A comes into contact with the rolling wheels 7b (see FIG. 2) to make contact 1 of the limit switch 1. _{Make L} (not shown) conductive and kicker 5B
The inclined surface 5b (see FIG. 4) brings the contact 1 _R (not shown) of the limit switch 1 into conduction by contact with the wheel 7b when going from the space 51a to the right section. The limit switches 1, 2 and 3 are connected to the lower pallets P ₁₁ and P, respectively.
₁₂ and P ₁₃ are output as a traverse completion detection signal and a signal that detects the presence or absence of separation from the kickers 5 and 5 at the stop position. As described above, the kickers 5C and 5D are the kickers 5A and 5D.
B, 5E, and 5F are displaced from each other, but this is because the lower pallets P ₁₁ and P ₁₂ and the lower pallets P ₁₂ and P ₁₃ are arranged close to each other. If the pallets can be widely spaced, all the kickers 5 and 5 may be arranged in a straight line.

On the other hand, as shown in FIGS. 2 and 3, a vertical girder 11 on the left side 11L which constitutes the main body of the lower pallet P ₁
A mounting plate member 7d is bolted to the plate member 13a at a along the outer surface 13c thereof. Then, on the surface 7c of the mounting plate member 7d, the plate member is bent into a substantially U-shape, and the groove-shaped mounting member 7e extended rightward is integrated by welding or the like. A switch / striker mounting member 7f composed of 7e and 7e is preferably provided on the stringer 11a so as to project therefrom. In addition, groove type mounting material 7e
An elongated hole 7g whose mounting position can be adjusted is formed at a substantially central position on the lower side, and the limit switch 1 and the like are mounted on the switch striker mounting member 7f by two bolts so that the mounting position can be adjusted. In addition, the lever 7 such as the limit switch 1 mounted on the vertical beam 11a in this manner
When a is in the neutral position and the contacts 1 _L and 1 _R are not conducted, the a takes a vertical posture as shown by the chain double-dashed line in FIG. Then, when the lower pallet P ₁₁ moves backward and the rolling wheels 7b come into contact with the inclined surface 5a of the kicker 5, the lever 7a is rotated rightward as indicated by the solid line. When the amount of rotation exceeds a predetermined value, the contact 1 _L of the limit switch 1 operates to output a return completion detection signal to the pallet control means. The pallet control means that has received the return completion detection signal stores that the transfer of the lower pallet P _{11 to} the left section is completed. In addition, the lower pallet P
_{When 1} moves forward and the rolling wheel 7b comes into contact with the inclined surface 5b of the kicker 5 as shown in FIG. 4 and the lever 7a is rotated leftward as shown by the solid line, the contact 1 _R of the limit switch 1 operates. The lower pallet P ₁₁ is moved to the right section, and the fact that it is completed is stored. The limit switches 1, 2, and 3 may be arranged in each parking section, and the kickers 5 and 5 may be attached to the lower pallets P ₁₁ , P ₁₂ , and P ₁₃ . Functionally, it suffices that the above-mentioned behavior can be generated by the contacting operation of both.

Stoppers 9A to 9F formed in a rectangular hollow body extending in the left-right direction are provided on the upper surfaces of the base plate members 6A to 6F bolted to the parking floor 51A shown in FIG. 11 as kickers 5A to 5F. It is fixed in close proximity. On the other hand, FIG.
Further, as shown in FIG. 3, the striker 10 formed into a hollow prismatic shape is integrated by welding or the like in the groove portion of the groove-shaped mounting material 7e that constitutes the switch / strike mounting material 7f. This is because the lower pallet P ₁ is brought into contact with the stopper 9 when the pallet traverses so as not to shift from the stop position in the lateral direction, that is, to prevent overrun, and the lower pallet P ₁ To vehicles 61 to 6
3 (see FIG. 5) for preventing the vehicle from moving toward the over-traversing side when it vibrates or rocks when entering or exiting or when the occupant gets on or off. Then, whichever lower pallet P ₁₁ ,
To P _12, P _13, respectively striker 10A~10C are provided at the same position. Note that the stopper and the striker are simply different in name, and functionally function to prevent the above-mentioned behavior from occurring by the abutting operation of both. By the way, just before the striker 10 contacts the stopper 9, the limit switches 1, 2, 3
Each of the levers 7a is already in contact with the inclined surface 5a or the inclined surface 5b of the kickers 5 and 5, and is set so as to pass a predetermined rotation angle. Therefore, the traverse completion detection signals have already been output from the limit switches 1, 2, and 3, and the drive of the traverse driving device 30 described above is stopped. As a result, the lower pallet P ₁ should also stop, but even if the lower pallet P ₁ continues to move a little due to the inertial force that has traversed, the limit switch is prevented from exceeding the kickers 5 and 5, and the lower pallet P ₁ is stopped. P ₁₁ , P
₁₂ and P ₁₃ are completely stopped by the strikers 10 and 10 and the stoppers 9 and 9. As described above, the stop position of the lower side pallet P ₁ is, the striker 10 is in its previous state or contacts the stopper 9, even if swinging lower side pallet P ₁ is the stopper 9 side, in that direction Shaking is stopped. However, if there is shaking in the opposite direction or if there is shaking back, the limit switches 1, 2 and 3 will move to the kickers 5 and 5.
Move away from or touch the kicker 5 again. And
Each time the limit switches 1, 2 and 3 are operated, the current stop position is memorized ignoring it, and even if the limit switches 1, 2 and 3 are separated from the kickers 5 and 5. The following consideration has been given so as not to give an erroneous signal that the lower pallet P ₁ is in the forward or backward movement state.

When any one of the upper pallets P ₂ is designated and lowered, there are 16 forms shown in FIGS. 12 (a) to 12 (d). Taking (a) as an example, as shown in the first row, when it is not necessary to traverse the lower pallet P _1, and when the desired number of lower pallets P ₁ are shown in the second and subsequent rows, There are times when you have to go out. Further, in the case of (b) as an example, although the first stage is similar, there is a case where a desired number of lower pallets P ₁ need to be moved backward or forward as shown in the second stage and below. FIG. 12E shows an operation panel 70, which is provided with a minimum number of switches in order to simplify the operation.
That is, four lowering command switches S ₁ for designating lowering of the upper pallets P ₂₁ , P ₂₂ , P ₂₃ , P ₂₄ ,
S ₂ , S ₃ , S ₄ and a rising command switch P _U for commanding the rising of one of the lowered upper pallets P ₂ are provided. The number of the raising command switch P _U is one, and it is possible to issue the raising command only for the lower pallet P ₂ on the lower side. The descending command switches S ₁ , S
When any of S ₂ , S ₃ and S ₄ is operated, the control device in this example is such that the lower pallet P ₁ which should be stopped.
It is possible to automatically operate by distinguishing between the lower pallet P ₁ to be moved forward or backward.

A schematic structure of the control device is shown in FIG. 1, and a pallet control means 60 including an upper pallet lifting control device 20 and a lower pallet traverse control device 40 is provided, which is a microcomputer or a relay. It is realized by a circuit. Upper pallet lifting control device 20
Is represented by a relay circuit 27 shown in FIG. 14, and is provided with a selection circuit 21 which receives a signal from a descending command switch as descending command means and selects the lower pallet P ₁ that needs to be traversed. This includes limit switches 1, 2, 3
Includes a stop position storage circuit that stores the traverse stop position of the lower pallets P ₁₁ , P ₁₂ , and P ₁₃ when it detects the completion of the traverse of the lower pallets P ₁₁ , P ₁₂ , and P ₁₃ . In addition, the limit switches 1 for the lower pallets P ₁₁ , P ₁₂ , P ₁₃
The upper pallet P ₂ to be lowered from the state 2 or 3
An elevating space presence / absence detecting circuit 22 for detecting the existence of the elevating space 51a is provided immediately below. Further, the descending command switches S ₁ , S ₂ , S ₃ , S ₄ and limit switches U ₁ , U ₂ , as upper floor position detecting means of the upper pallet P ₂ are detected.
U _3, U _4, limit switches _{D 1, D 2, D 3} , D 4, lifting space existence detection circuit lifting motor M ₁ signal receiving and from 22 as downstairs position detecting means of the upper stage-side pallet P _2, while for normal rotation _{M 2, M 3, M 4} , receives signals from the raised command switch P _U as increase command means for raising the upper stage pallet P ₂ downstairs position, for reversing the elevator motor A forward / reverse rotation and stop command circuit 23 that issues a command is provided. On the other hand, the lower pallet traverse control means 40 is represented by a relay circuit 47 shown in FIG. 15, in which a traverse start for receiving a signal from the lower pallet selection circuit 21 to start traverse of the corresponding lower pallet P ₁ is started. Command circuit 41 and limit switches 1, 2, 3
Signal from the lower pallet P ₁ to store the previous transverse direction of the pallet P ₁ , and a signal from the limit switches 1, 2 and 3 to cause the lower pallet P ₁ to reverse the previous traverse. And a stop position separation detection circuit 43 for detecting that it has deviated from the immediately preceding stop position by swinging in the direction of. Furthermore, the stop position separation detection circuit 43
Receives a signal from, and the lower side pallet P ₁ lower side pallet P ₁ of the transverse for the stop position away repair command circuit to re-drive the motor 44 appropriate to return the to the stop position, the transverse direction storage circuit and the 42 And a stop position separation / restoration command circuit 44, and a normal / reverse rotation and stop command circuit 45 for issuing a command to rotate the corresponding traverse motors m ₁ , m ₂ , m ₃ in the normal or reverse direction and to stop the motors. Is provided.

The pallet control means composed of those relay circuits and the flowchart of FIG. 13 will be described below. When the vehicle placed on the upper pallet P ₂₂ in the multi-storey parking lot 50 is unloaded in the lowermost state of FIG. 12B, the descending command switch S is displayed on the operation panel 70 (see FIG. 12E). ₂ is pressed [S1 of the flowchart]. Now, the lower pallets P ₁₁ , P ₁₂ ,
With all of P ₁₃ in the state after the return trip, contacts 1 _L , 2 _L and 3 _{L of the} limit switches 1, 2 and 3 operate, and contacts 1 _R , 2 _R and 3 _{R become} insensitive. is there. Therefore, the normally-open contact and normally-closed contact for each are in the conducting or blocking state as shown in FIGS. Thus, the lower side pallet P ₁₂ immediately below the upper stage pallet P ₂₂ is located, it may not be able to lower the upper side pallet P ₂₂ need to forward stroke the lower side pallet P _12, P ₁₃ Remembered Ie, just below the upper stage pallet P ₂₂ is the lower stage pallet P _12, the contact of the circuit 1 including the motor M ₂ in the upper side pallet P ₂₂ of FIG. 14 that functions as a presence detection circuit 22 of the elevator space It is detected because _L is conducting [S2]. On the other hand, in order to lower the upper pallet P ₂₂ , the lower pallets P ₁₂ and P ₁₃ must be moved forward.
The relay coils T ₁ , T ₂ , T ₃ functioning as the lower pallet selection circuit 21 are set. Since the down command switch S ₂ is being pressed, the relay coil R ₂ is excited by supplying power as shown by the thick line and the contact 2
Relay coils T _{2 and} T ₃ are excited via _{L and} 3 _L. After that, the normally open contact point r ₂ becomes conductive and the down command switch S ₂ is held by itself even if it is released. Relay coil T
By the excitation of the _2, T _3, by conduction and contact t ₃ contacts t ₂ and the lower side pallet P ₁₃ of the lower side pallet P ₁₂ in transverse start command circuit 41 shown in FIG. 15, both the lower-side pallet P ₁₂ , P ₁₃ is given a traverse command [S3]. When the relay coils R _h and R _p are excited, the normally open contacts r _{h and} r
_{While p} is conducted, normally closed contacts rh _and r _p are cut off,
The forward / reverse rotation of the traverse motor and the motors m _{2 and} m ₃ interposed in the stop command circuit 45 rotate in the N direction. The two lower-stage pallets P ₁₂ , P ₁₃ start going in the opposite direction to the previous transverse direction, that is, the backward direction [S4]. At this time, since the relay coils R _{i and} R _q are also excited, the keep relay contact as the conventional transverse direction memory circuit 42 of the pallet is switched from r _j to r _i and from r _r to r _q . .
Immediately after the start of the trip, the limit switches 2 and 3 are kicker 5
Since it is separated from C and 5E, normally open contacts 2 _L and 3 _{L in} FIG.
Changes (not shown), but does not affect the relay coils T _{2 and} T ₃ in FIG. 14 due to conduction of the contact r ₂ . Further, the relay coils R _{h and} R _p are not affected by the conduction of the contacts rh _and r _p in FIG. 15, and the lower pallets P ₁₂ and P ₁₃ of the traverse motors m ₂ and m ₃ are not affected. Outgoing is maintained. When the lower pallets P ₁₂ and P ₁₃ have completed the forward movement and the limit switches 2 and 3 are operated by the kickers 5D and 5F, [S
5], as shown in FIG. 16A, the normally closed contact 2 _R,
The relay coil T _{2 and} T ₃ are demagnetized by turning off 3 _R. As a result, the contacts t _{2 and} t ₃ in FIG. 15 are cut off. At this time, in the stop position storage circuit 21 of FIG. 14, the traverse stop position is stored by the contacts 2 _L and 3 _L which have already been switched and the contacts 2 _R and 3 _{R which} have been switched [S].
6]. As shown in FIG. 16B, the motors m ₂ and m ₃ are stopped, and the lower pallets P ₁₂ and P ₁₃ stop moving forward [S].
7]. Even if the lower pallets P ₁₂ and P ₁₃ do not stop immediately due to the operation of the limit switches 2 and 3, the strikers 10B and 10C described above are provided with stoppers 9.
Since it comes into contact with D and 9F, its lower pallets P ₁₂ , P
₁₃ does not overrun each stop position.
That is, as described in the prior art, the rolling wheel 7b
The lever 7a does not return to the neutral position beyond the kickers 5D and 5F. Therefore, when the subsequent is go-around the lower side pallet P _12, P _13, that the limit switch 2 is kicker 5D, touching 5F, the signal as if had completed the go-around is output Things will not happen. In this manner, when the forward stroke of the lower side pallet P _12, P ₁₃ is completed, as shown in (a) of FIG. 16, the contact 1 is conducting from the previous as presence detection circuit 22 of the lift space _L and now By the contact point 2 _R that has been conducted, the motor M ₂ interposed in the forward / reverse rotation and stop circuit 23 of the lifting motor is rotated in the normal direction, and the upper pallet P ₂₂ starts descending [S.
8]. That is, a drive command is issued to the lifting device (not shown) mounted on the suspension 4. Immediately after the descent is started, the limit switch U ₂ that detects the position above the pallet changes (see the left end portion of FIG. 14, but the change is not displayed), but the circuit in (a) of FIG. The lowering of the upper pallet P ₂₂ is continued without affecting. When the descent is completed and the upper pallet P ₂₂ descends into the space where the lower pallet P ₁₂ was located [S9], the limit switch D ₂ for detecting the downstairs position of the pallet changes to demagnetize the relay coil R ₂ and the motor. M ₂ stops (not shown). When the upper side pallet P ₂₂ descends to the parking lot floor 51A, thereby unloading the vehicle. When the next to warehousing, upper side pallet P ₂₂ is raised as follows. The lower pallets P ₁₂ , P ₁₃ are kept in the forward state, and their positions are still stored in the pallet controller [S6].

If a lift command switch P _U is pressed after a new vehicle is placed on the upper pallet P ₂₂ [S1
0], as shown in FIG. 17, the relay coil R _U is excited to change the normally open and normally closed contacts r _U , and the motor M ₂ rotates in the reverse direction. If the ascent is completed [S11], the limit switch U ₂
Is cut off, the relay coil R _U is demagnetized, the contact r _U stops the motor M ₂ , and the upper pallet P ₂₂ remains at the upper floor position. This state is shown in FIG.
(A) second stage, (b) first stage, (c) second stage,
This is the third step in (d). If the lower-stage pallet P ₂₂ is designated again, the space immediately below it is open [Fig. 12].
(B), the first stage, S2], and in the same state as (a) in FIG. 16, the upper stage pallet P ₂₂ immediately starts descending [S8]. On the other hand, when the rising instruction switch S ₁ is selected, the corresponding parts of the upper pallet lifting control circuit 27 and the lower pallet traverse control circuit 47 are as shown in FIG. 18, and only the relay coil T ₁ is excited. To be done. The contact point t ₁ is brought into conduction, and the lower pallet P ₁₁ starts going forward [S3]. The subsequent operation is the same as above.

By the way, the lower pallets P ₁₁ , P ₁₂ , P
_{When the} vehicle is loaded or unloaded by any one of the items ₁₃ , the lower pallet P ₁ may vibrate or swing due to its advancing / retreating operation or the entry / exit of an occupant. If the swing is in the front-rear direction, it is blocked by the drive wheels 32A and the driven wheels 32B on the triangular rail 33A shown in FIG. On the other hand, when the rocking is in the left-right direction, for example, when the movement of the lower pallet P ₁ is rocking toward the stopper 9, that is, when the rocking is in the same direction as the previous traverse at the traverse stop position. [S12] is blocked by the striker 10 that contacts the stopper 9 [S13]. At this time, the lever 7a of the limit switch 2 is rotated further a little as shown by the alternate long and short dash line in FIG.
No new signal is output. On the contrary to the above, when the shake on the side opposite to the stopper 9 is received, that is,
When swinging in a direction opposite to the conventional traverse at the traverse stop position [S12], there is nothing that directly regulates the movement, and the rolling wheel 7b may be separated from the inclined surface 5b of the kicker 5. In this case, the stop position separation detection circuit 43 (see FIG. 15) in the relay circuit 47 functions. Assuming that the lower pallet P ₁₂ sways in the backward direction in the state of FIG. 16B, the normally closed contact 2 _R in series with the transverse direction memory circuit 42 in the contact r _i as shown in FIG. The relay coil R _{m of the} stop position separation detection circuit 43 is excited by the conduction. Contact r _{m of} stop position separation repair command circuit 44
Change, the forward / reverse rotation of the traverse motor and the stop command circuit 45
Motor m ₂ rotates in the forward direction and lower pallet P ₁₁
Is moved in the conventional transverse direction [S14]. If the limit switch 2 to operate relay R _m is completed outbound demagnetized [S15], the relay coil R _m with a blocking of the normally closed contact 2 _R is demagnetized, the motor m ₂ with a blocking of the normally open contact r _m Stops rotating. As described above, even if the lower pallet P ₁₂ is returned to the stop position or shaken back after the shake of the lower pallet P ₁₂ , the signal output by the operation of the limit switch 2 is the forward path that was previously completed. It is the same as the stop signal. Therefore, only the same signal is input to the pallet control device, and a signal different from the preceding forward completion signal, that is, a backward completion signal is not input. The same operation is realized even when the other lower pallets P ₁₁ and P ₁₃ shake. As a result, even if a pallet to be moved is selected later,
Lower pallet P ₁₁ for enabling the movement,
The traverse control of P ₁₂ and P ₁₃ is not disturbed, and the confusion in the control command system is avoided. Incidentally, when the limit switch has been operated at the stop position is deviated from the kicker at shaking the lower side pallet P ₁₂ (Fig. 1
9), for example, even if the contact t ₂ is made conductive due to a lowering command of the upper pallet P ₂₂ , the normally open contacts 2 _R and 2 _L are cut off, and the relay coils R _g and R _h are excited. The movement of the traverse motor m ₂ is not confused.
In this way, the excessive traverse of the lower-stage pallet by the striker and the stopper can be prevented also in the case where the lower-stage pallet is moved back to the state shown in FIG. Even after traversing any of the compartments, it is avoided that the pallet control device will confuse the subsequent control due to the vibration or shaking of the lower pallet, and it will not be possible to traverse each lower pallet in the desired direction. To be done. Moreover, a simple and inexpensive pallet control device sequence can be adopted, and reliable operation without malfunction in the control of the lower pallet in the multistory parking lot is guaranteed.

Although the pallet control device has been described above as a relay circuit in which the pallet control device is divided into the upper pallet lifting control device and the lower pallet traverse control device, the understanding is facilitated. It is not necessary to sort into the lower pallet, and it is possible to have a circuit configuration that realizes the above idea. By the way, the above example uses a relay circuit, and when the lower pallet is displaced in the direction opposite to the previous traverse due to shaking or the like, the lower pallet is automatically returned to the stop position. . But,
Adopting a different relay circuit or microcomputer, without returning the lower pallet to the stop position,
When it is possible to traverse from the displaced position in the reverse direction opposite to the conventional forward direction, the pallet control means 60 is provided with the stop position separation detection circuit 43 and the stop position separation repair command circuit 44. No need. On the other hand, the limit switches 1, 2, and 3 provided on the lower pallets P ₁₁ , P ₁₂ , and P ₁₃ respectively have contact points 1 when the forward movement is completed.
_{When R} , 2 _R , and 3 _R operate and the return is completed, contact 1 _L ,
It is a two-contact switching direction type that operates 2 _L and 3 _L. However, a lower limit pallet P ₁₁ is equipped with a dedicated limit switch 1R for operating the contact 1 _R and a dedicated limit switch 1L for operating the contact 1 _L, and the limit switch 2 is also provided for the lower pallets P ₁₂ , P _13.
It is also possible to have a total of six R, 2L, 3R and 3L. Also, the case where four upper pallets on the upper floor of the multi-storey car park and three lower pallets on the lower floor are described as an example, but the number of parking sections on each floor can be appropriately selected. . Further, although the multi-story parking lot has two upper and lower tiers, it is needless to say that it can be applied to the traverse control of the lowermost pallet in a parking lot having three or more tiers. Although such an idea is most effective in the lowermost stage, it can be used in the second stage, etc., if necessary, when the multi-storey car park has three or more stages.

[0020]

As described above in detail, according to the present invention, after the lower pallet traverses and the striker contacts the stopper, the lower pallet sways in the same direction as the conventional traverse. It is prevented from moving. Not only that, even if the lower pallet vibrates or swings in the direction opposite to the previous traverse due to vehicle loading and unloading and passengers getting on and off, and the limit switch comes off from the kicker that was contacted immediately before,
On the next traverse, the lower pallet can be moved in the normal reverse direction without confusion in control.
Therefore, as in the conventional case, when the lower pallet goes back after the limit switch overtravels along with the lower pallet and disengages from the kicker in the forward direction, the lower pallet again touches the kicker that was previously in contact with It is possible to avoid outputting the signal to stop the lower pallet immediately after the completion of the above. As a result, the sequence operation of the pallet traverse control device is not confused, and the desired movement of the lowermost pallet is always maintained.

[Brief description of drawings]

FIG. 1 is a schematic block diagram of an entire system including a configuration according to the present invention.

FIG. 2 is an enlarged front view showing the arrangement of limit switches, kickers, stoppers and strikers forming the malfunction prevention control device.

FIG. 3 is a view taken along the line II-II in FIG.

FIG. 4 is an enlarged front view taken along the line IV-IV of FIG. 8, showing an arrangement including a kicker having inclined surfaces in different directions.

FIG. 5 is a rear view of an example of a multi-storey parking lot to which the present invention is applied.

6 is a side view taken along the line VI-VI of FIG.

FIG. 7 is a plan view of FIG.

FIG. 8 is a side view of an example of the lowermost pallet.

9 is a view taken along the line IX-IX in FIG.

10 is a plan view taken along the line XX of FIG.

FIG. 11 is a plan view of the floor surface of the parking lot showing the positional relationship between the pair of stoppers and the striker with a reduced left-right spacing.

12A to 12D are explanatory views of a combination mode of an upper pallet to be lowered and a lower pallet to be traversed, and FIG. 12E is a switch for selecting an upper pallet to be lowered and a rising command. The front view of the operation panel which arranged the switch.

FIG. 13 is a flowchart for explaining the movement of the upper pallet and the lower pallet.

FIG. 14 is an elevation control circuit diagram of the upper pallet selecting the upper pallet P ₂₂ .

FIG. 15 is a traverse control circuit diagram of the lower pallet in a state of traversing the lower pallets P ₁₂ and P ₁₃ .

[16] (a) is a circuit diagram of the upper stage-side pallet P ₂₂ when the lower side pallet P _12, P ₁₃ has completed rampant, (b)
Is a circuit diagram of the lower pallets P ₁₂ and P ₁₃ that have completed the traverse.

FIG. 17 is a lift control circuit diagram in a state where a lift command is given to the lowered upper pallet P ₂₂ .

FIG. 18 is a circuit diagram when the upper pallet P ₂₁ is specified and the lower pallet P ₁₁ is about to traverse.

FIG. 19 is a circuit diagram when the lower pallet P ₁₂ swings in a direction opposite to the immediately preceding traverse.

[Explanation of symbols]

1, 2, 3 ... Limit switches (transverse completion detection and stop position separation detection means), 5, 5A to 5F ... Kicker, 9, 9A
-9F ... Stopper, 10, 10A-10C ... Striker, 21 ... Stop position storage circuit (lower pallet selection means), 50 ... Multi-story parking lot, 51A ... Parking lot floor, 51a
... space, 52 ... upper parking space, 60 ... pallet controller, 61 to 67 ... _{vehicle, P 1, P 11, P} 12, P 13 ... lower side _{pallet, P 21, P 22, P} 23, P 24 ... upper side _{pallet, m 1, m 2, m} 3 ... traverse motor.

Claims (1)

[Claims] 1. In a multi-storey parking lot in which a pallet on which a vehicle to be unloaded is placed is lowered to the lowermost tier, when the upper pallet is lowered to the lowermost tier, the pallet is positioned directly below the upper pallet. In the pallet traverse control device that traverses the lower pallet by one section and stops at a predetermined position, and next time it traverses one section in the opposite direction, the lower side pallet traverses the floor of the parking section. A kicker for stopping the lower pallet is arranged, and a limit switch is provided on the lower pallet to operate when contacting the kicker to output a traverse stop command signal for the lower pallet. At the position where it should stop, and in the position where the limit switch does not exceed the kicker, the parking area While a stopper is arranged on the floor surface, a striker that is in contact with the stopper is attached to the lower pallet, and the limit switch is in the stop position as well as when the lower pallet detects completion of traverse of the lower pallet. There is provided pallet control means having a stop position storage unit that stores the traverse stop position of the lower pallet even when the lower pallet swings in the direction opposite to the conventional traverse and shifts from the stop position. A malfunction prevention control device for the lower pallet of a multi-storey parking lot.