JPS6321647Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is based on the invention by arranging a plurality of rows of trays in parallel in a plane, each consisting of an arbitrary number of trays for automobiles that are adjacent to each other in the horizontal direction. A dead space for one tray is formed, and the trays are moved and circulated in a two-step system by the operation of vertical feeding devices installed on both sides of the tray row and horizontal feeding devices installed in the center of the tray row. In a flat circulation parking facility in which a multi-layered flat circulation parking system is assembled in the vertical direction and a forklift is attached to either side of these parking units, the tray may fall when the tray is transferred to or reversed from the forklift. This relates to a prevention device.

Conventionally, as shown in Figures 1 and 2, a multi-story, flat, circulating parking facility has been known in which multiple or more rows of trays, each row consisting of a given number of trays 2 for placing automobiles 1 adjacent to each other in the horizontal direction, are arranged in parallel on a plane, with dead spaces for one tray formed at both ends of one diagonal line, and parking device units 5, each of which is provided with a vertical feed device 3 and a horizontal feed device 4, and which are configured to move and circulate the trays in a two-step method by operating both feed devices, are combined in multiple layers in the vertical direction, and a forklift 6 is provided on one side of each of these parking device units.

Therefore, in the parking equipment, when the car 1 is transferred from the tray 2 to the forklift 6 to leave the parking lot, or transferred from the forklift 6 to the tray 2 and parked, the wheels 7 of the tray are moved to the vertical feed device 3. Therefore, there is a fear that the chain belt 8, which is driven in circulation, may come off the moving rail 9 and cause an unexpected accident. A prevention device has been proposed.

However, in the tray fall prevention device, a movable rail rotatably supported by a spring is attached to a fixed rail that also serves as a stopper attachment base that bridges the tray to the lift, and the stopper is attached to the attachment base. The drawback is that it is swingably mounted, which generates noise and makes operation unreliable.

In addition, Japanese Patent Publication No. 51-31428 proposes a device for preventing the tray from falling when transporting a vehicle in a flat circulation parking facility, but in this device, the tray cannot be moved horizontally when the limit switch is in the activated position. When the tray starts, the tray comes into contact with the limit switch, and an abnormality detection signal generated by this causes the traverse feed device to stop and the tray stops. However, in this case, due to a malfunction of the limit switch or the inertia of the tray, the tray overruns and falls into the lifting pit. Furthermore, it is effective only when the lift descends from the upper part of the underground parking facility.
In the case of a multi-layer type, it can only be used for the bottom layer and cannot be used for the middle layer or the top layer.

In contrast, the present invention aims to provide a tray fall prevention device for flat circulation parking equipment that can eliminate the above-mentioned drawbacks, and its gist is to move the vertical feed device on the forklift side At the position where the rail stops, a bridge trestle with a fixed rail attached to the upper surface for transferring the tray between the movable rail and the lift frame of the forklift is installed symmetrically, and the tray is placed inside these trestles. A spring-loaded stopper rod to which a limit switch for stopping traversal feed is attached is mounted so as to be movable up and down, and a spring-loaded operating rod, which has a contact piece for actuating the limit switch attached to the moving rail side, is movable up and down. Installed in parallel with the stopper rod, in this case,
The stroke of the stop parrot is made larger than the stroke of the actuating rod so that the head of each rod protrudes from the fixed rail surface under normal conditions, and the lower end of the stop parrot is placed on the lower surface of the lift side of the bridge trestle. The base of a bell crank consisting of a crank arm linked to and another crank arm having a roller pivotally attached thereto is rotatably mounted, and the roller is pressed only when the elevating frame reaches the loading/unloading level. A striker having a cam that lowers the stopper rod is installed on the elevating frame, and when the elevating frame does not reach the loading/unloading level, the wheels of the tray depress the actuating rod and the contact piece lowers the stopper rod. The present invention is constructed so that when a limit switch is turned on, an emergency stop signal is issued to stop the traverse feed, and at the same time the wheels come into contact with the stopper rod.

Next, the present invention will be explained in more detail with reference to an embodiment shown in FIGS. 3 to 5.

First, as shown in FIGS. 1 and 2, the present device is circulated by the tray 2 adjacent to the forklift 6 of each parking device unit 5, that is, the vertical feed device 3, and reaches the end of the lateral feed track. They are installed in corresponding positions A and B corresponding to the longitudinal side ends of the tray 2 to be transferred onto the moving rail 9. In this case, since the configurations of these devices are the same, the following description will be made. Only the configuration of the A position will be explained, and the explanation of the B position will be omitted.

In FIGS. 3 and 4, a bridge trestle having a fixed rail 11 on the upper surface is installed symmetrically at the position where the moving rail 9 of the vertical feed device 3 (on the forklift 6 side) stops, 12 is a bell crank, and 13 is a A striker 15 has a cam 14 whose position can be adjusted, and 15 indicates a lifting frame of the forklift 6, and a fixed rail 1 is provided in the center of the bridge trestle.
A spring-biased stopper rod 18 is mounted so as to be movable up and down between a seat plate 16 provided on the back of the table 1 and a bracket 17 attached to the inside surface of the table (on the movable rail 9 side). In this case, the stopper rod protrudes from the fixed rail surface in a normal state due to the tension of the coil spring 21 wound between the upper sleeve 19 and the lower sleeve 20 attached to the receiver, and the stopper rod of the wheel 7 of the tray 2. A notch mounting plate 24 having a limit switch 23 for stopping tray traverse feed is suspended from a support plate 22 which is integrally formed with the upper sleeve and fixed to the rod. A bell crank 12 is attached to the lower end of the rod.
are linked together. In addition, a spring-biased operating rod 25 installed parallel to the stopper rod 18 on the movable rail 9 side of the bridge trestle 10 is connected to a guide 26 provided on the back surface of the fixed rail 11 and a receiving bracket attached to the inner side surface of the platform. 27, and in a normal state, the fixing rail is moved by the springing force of a coil spring 30 wound between the support plate 29, which suspends the contact piece 28, and the bracket 27. It starts to protrude from the surface.

Furthermore, as shown in FIG. 5, the base 33 of the bell crank 12 is attached to the mounting pin 34 on the bracket 32 which is fixed to the lower side of the bridge trestle 10 (on the side of the forklift 6) with bolts 31. In this case, one crank arm 35 forming the bell crank is attached to the pin 3.
6 to the lower end of the stopper rod 18, and the other crank arm 37 has a pin 3.
The striker 13, which is mounted on the lifting frame 15 of the forklift 6, is formed from a cam 14 and a support member 40, and the upper part of the support member is fixed to the lifting frame. Further, the cam is attached to the lower part using an elongated hole 41 and a pin 42 so that its position can be adjusted.

By making the stroke of the stopper rod 18 larger than the stroke of the actuating rod 25, the stopper rod is lowered and the wheels 7 of the tray 2 are moved only when the elevating frame 15 rises or falls to reach the loading/unloading level. Even if the rod is depressed, the limit switch 23 for stopping tray traversal does not operate, and when the elevating frame does not reach the loading/unloading level, the tray wheel depresses the operating rod to turn on the limit switch. Preferably, when an emergency stop signal is issued to stop the traverse feed, the tray wheel abuts the stopper rod to prevent the tray from falling.

Next, the operation mode of the present device having the above-mentioned configuration will be explained. As shown in FIG. When the tray is moved to a certain point, the tray is placed on the moving rail 9 of the vertical feeding device 3 and stopped. Next, as shown in FIG. 4, when the forklift 6 is lowered (or raised) to the same level as the fixed rail 11 of the bridge trestle 10 (a part of which is covered with buffer rubber 43 such as urethane rubber), The cam 14 of the striker 13 attached to the elevating frame 15 of the lift presses the roller 39 attached to the crank arm 37, and the bell crank 12, which was previously in the solid line position, is reversed to the two-dot chain line position. Rotating clockwise, the crank arm 35 of the bellcrank therefore pulls the stopper rod 18 downwardly, causing the stopper rod to descend and the rod head 44 to move downwardly to 44'. When the traversing device 4 is activated again from this state, the wheels 7 of the tray 2 depress the actuating rod 25 of the limit switch 23 and move on the fixed rail 11 toward the forklift 6, causing the forklift to move up and down. When placed on the frame 15, the elevating frame is raised (or lowered), and in this case, the stroke of the stopper rod is larger than the stroke of the actuating rod, so the limit switch does not work. No emergency stop signal is issued, and the engagement between the cam 14 of the striker 13 and the roller 39 is disengaged, and the stopper rod returns to its previous solid line position.

On the other hand, during the above-mentioned unloading work, in order to increase the operating efficiency of the parking equipment, the lower car 1 is placed adjacent to the forklift 6, that is, on the moving rail 9 of the vertical transport device 3. In this case, when the wheel 7 of the tray 2 that has been moved sideways depresses the operating rod 25 of the limit switch 23, the contact piece 28 descends and the limit switch is turned on, thereby causing an emergency. Since the wheels abut against the stopper rods 18 at the same time as the stop signal is issued to stop the traverse feed, the trays will not fall.

In the above description, the case where the car is taken out of the garage has been explained, but when the car is put in the car, the operation can be performed in the opposite manner, so a detailed explanation will be omitted.

From what has been described above, according to the present invention, when the elevating frame ascends or descends and reaches the loading/unloading level of the parking device unit, the stopper rod does not lower, making it possible to carry or convey the tray to the elevating frame. In addition, when the loading/unloading level is not reached, the limit switch is activated to stop the tray from moving horizontally, and at the same time the tray wheel contacts the stopper rod, completely and reliably preventing the tray from falling without overrunning. It can be done.

Furthermore, according to the present invention, since it can be installed on any of the multiple underground floors, for example, while unloading work is being carried out on one floor, it is not possible to move cars on other floors to positions adjacent to the forklift. This has the effect of improving the operating efficiency of parking equipment.

[Brief explanation of the drawing]

Figure 1 is a plan view showing a flat circulation type parking facility in which a tray drop prevention device according to the present invention is installed;
The figure is a front view of FIG. 1, FIG. 3 is a plan view of the proposed device, and FIGS. 4 and 5 are sectional views taken along lines - and - in FIG. 3. Note that the correspondence relationship between the main parts shown and the symbols is as follows. 1...Automobile, 2...Tray, 3...Vertical feed device, 4...Horizontal feed device, 6...Forklift,
7... Wheel, 9... Moving rail, 10... Bridge trestle, 11... Bridge fixed rail, 12... Bell crank, 13... Striker, 14... Cam, 1
5... Lifting frame, 18... Stopper rod,
23... Limit switch for stopping tray traverse feed,
25... Operating rod, 35, 37... Crank arm, 39... Roller.

Claims (1)

[Scope of utility model registration request] A plurality of tray rows consisting of an arbitrary number of trays for automobile placement are arranged in parallel in the horizontal direction in a plane, and a dead space for one tray is formed at both ends on one diagonal line. A flat circulation parking device unit configured to move and circulate the trays in a two-step process by operating a vertical feeding device installed on both sides of the tray row and a horizontal feeding device installed in the center of the tray row, respectively, is stacked vertically. combination,
In a flat circulation type parking facility in which a forklift is attached to either side of these parking device units, the movable rail and the forklift are placed at the position where the movable rail 9 of the vertical feed device 3 on the forklift 6 side stops. A bridge trestle 10 is installed symmetrically, and a fixed rail 11 for transferring the tray 2 to and from the elevating frame 15 is installed symmetrically, and a limit switch 23 for stopping the tray traverse feed is installed inside these trestles. A biased stopper rod 18 is mounted so as to be movable up and down, and a spring-biased operating rod 25, which has a contact piece 28 for operating the limit switch attached to the moving rail side, is mounted so as to be movable up and down in parallel to the stopper rod. In this case, the stroke of the stopper rod is made larger than the stroke of the actuating rod so that the head of each rod protrudes from the fixed rail surface under normal conditions, and the lower side surface of the bridge trestle on the lift side The base 33 of the bell crank 12, which consists of a crank arm 35 linked to the lower end of the stopper rod and another crank arm 37 on which a roller 39 is pivotally mounted, is rotatably attached, and the elevating frame is moved in and out of the warehouse. A cam 1 that presses the roller to lower the stopper rod only when the level is reached.
A striker 13 having a shape of 4 is installed on the lifting frame, and when the lifting frame does not reach the loading/unloading level, the wheels 7 of the tray depress the actuating rod and the contact piece turns on the limit switch. 1. A tray drop prevention device for a flat circulation type parking facility, characterized in that the tray is configured such that the wheel comes into contact with the stopper rod at the same time as an emergency stop signal is issued to stop the lateral feed.