JPH11324381A - Pallet holding device of mechanical parking apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pallet holding device of a mechanical parking apparatus, which can surely operate a pallet stopper without a special actuator, and operate a turning arm instantaneously without a sensor and a sequence control signal. SOLUTION: This device includes a stopper member 22 which is fitted to each storing rack and capable of turning on a horizontal shaft 21. The stopper member 22 has long and short striker parts 22a, 22b intersecting perpendicularly to each other, and one of them is positioned upward. The long striker part 22a is set longer enough to prevent the movement of the pallet, and the short striker part 22b is set shorter enough to prevent movement of the pallet. By the rotation of the turning arm 10 in taking the pallet, the long striker part 22a is turned to be put in the open position by the turning arm 10 to take the pallet, and by the rotation of the turning arm 10 in discharging the pallet, the short striker part 22b is turned to be put in the close position after discharging by the turning arm 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mechanical parking device, and more particularly, to a pallet holding device for a mechanical parking device.

[0002]

2. Description of the Related Art FIG. 4 shows an example of a mechanical underground parking device, which includes a lift 3 for raising and lowering a pallet 2 on which a vehicle 1 is mounted.
A traversing device 6 for moving the pallet 2 from the entrance / exit berth 4 to the lift cage in the lift 3, and the pallet 2 on the lift cage 5 is pulled in underground and placed on the upper surface, and travels in the longitudinal direction of the vehicle, and A trolley 8 for transferring the pallet 2 on which the pallet 1 is mounted to the storage shelf 7;
A plurality of storage shelves 7 installed underground by loading and unloading of vehicles 1 at a time, traversing by a traversing device 6, lifting and lowering by a lift 3, traveling and transferring by a movable cart 8
It is designed to be accommodated in. Such a mechanical underground parking device is disclosed, for example, in JP-A-7-158310.

As shown schematically in FIG. 5, the transfer of the pallet 2 between the movable carriage 8 and the storage shelf 7 is performed by using a drive shaft center 1 of a revolving arm 10 that can be rotated forward and reverse by a drive motor.
0a is slidably disposed on the side of the storage shelf for taking in or paying out pallets with respect to the center of the movable cart 8,
An engaging member 9 (dog) is attached to the upper surface on the free end side of the swivel arm 10, and the guide arm 2 a provided on the back surface of the pallet 2 and the dog 9 fit together.
Is driven by rotation. That is, in this figure, the movable trolley 8 travels in a state where the guide groove 2a of the pallet 2 placed on the movable trolley 8 and the dog 9 are fitted at the point A, and the turning arm is moved to the predetermined storage shelf 7 position by the A By rotating the pallet 2 leftward to B, the pallet 2 is transferred (paid) to the upper storage shelf 7 in the figure, and the swing arm can return to the position shown in the figure and move without the pallet. vice versa,
By rotating the turning arm 10 clockwise from the position shown in the figure, the guide groove 2a of the pallet 2 of the storage
Are fitted, and by turning right from B to A as it is,
The pallet 2 can be transferred (taken) from the upper storage shelf 7 in the figure.

[0004]

FIG. 6 is a schematic view of a conventional pallet holding device. If the pallet 2 transferred to the storage shelf 7 described above moves toward the movable trolley 8 due to vibration or the like, there is a possibility that the pallet 2 will interfere with the traveling trolley 8. Therefore, in the conventional mechanical parking device, a pallet stopper 11 for preventing the pallet from moving is attached to each of the storage shelves 7 so as to be able to swing with a swing shaft 11a. The pallet 2 is transferred by releasing the rocker 11 by swinging it. However, such a conventional pallet holding device of a mechanical parking device requires a dedicated actuator (release air cylinder 12) to open and close the pallet holding device, so that the structure is complicated, and the production, assembly, and adjustment of the device are complicated. Therefore, there is a problem that the man-hour is required and the cost is high. Further, after confirming the operation of the pallet holding device, it is necessary to operate the turning arm 10, and it is necessary to attach a sensor or the like and a confirmation signal for sequence control, so that the cycle time becomes longer and the reliability decreases. There was a problem to do.

The present invention has been made to solve such a problem. That is, an object of the present invention is to enable the pallet stopper to be reliably operated without using a dedicated actuator, and to immediately operate the swing arm without a sensor for detecting the operation of the pallet stopper or a confirmation signal for sequence control. Accordingly, it is an object of the present invention to provide a pallet holding device for a mechanical parking device, which can enhance reliability and reduce cycle time.

[0006]

According to the present invention, there is provided a pallet holding device mounted on each storage shelf (7) to prevent the pallet (2) from moving to the loading / unloading side, wherein a horizontal shaft is provided below the pallet. A stopper member rotatable about (21), the stopper member having long and short strikers (22a, 22b) extending radially outward from the horizontal axis and orthogonal to each other; The long striker portion (22a) is set long enough to prevent the pallet from moving to the loading / unloading side at its tip, and the short striker portion (22b) ) Is set short enough so as not to hinder the movement of the pallet at its tip. By rotating the swivel arm when taking in the pallet, the swivel arm turns the long striker to Mechanical type characterized by turning the squid part upward, then taking in the pallet, discharging the pallet by rotating the swivel arm when dispensing the pallet, and simultaneously turning the short striker part with the swivel arm to make the long striker part upward. A pallet holding device for a parking device is provided.

[0007] According to a preferred embodiment of the present invention, the rotating direction of the turning arm at the time of taking in the pallet and at the time of discharging the pallet are opposite, and the stopper member (22) has the long striker portion (22a) and the short striker portion (22). 22b), the turning arm of which is in contact with the inner surface thereof.

In the pallet holding device of the present invention, the opening / closing operation of the stopper member (22) is performed by using the rotating operation of the turning arm (10). In other words, since the rotation direction of the pallet transport swivel arm differs between when the pallet is loaded and when the pallet is dispensed, paying attention to the difference,
The opening and closing operation of the pallet holding device is changed from closed to open when taking in the pallet, and conversely, when the pallet is dispensed, the turning arm is used to turn from open to closed.

That is, according to the configuration of the present invention, one of the long and short striker portions (22a, 22b) is positioned upward, and the long striker portion (22a) is positioned at the tip. The short striker portion (22b) is set to be sufficiently long so as to prevent the pallet from moving toward the carry-in / out side, and the short striker portion (22b) is set short enough so as not to hinder the pallet movement at its tip end. When) is upward, the pallet can be prevented from traversing (close position), and when the short striker portion (22b) is upward, the pallet can be released (open position). In addition, by rotating the turning arm (for example, turning left) at the time of taking in the pallet, the turning arm rotates the long striker portion to turn the short striker portion upward, thereby mechanically changing the closed position to the open position. Pallets can be imported. Similarly, the pallet is dispensed by the rotation of the turning arm (for example, right rotation) when dispensing the pallet,
The pallet can be transferred to the storage shelf during the open position, and at the same time, the short striker can be swiveled by the swivel arm so that the long striker is directed upward to the closed position. Therefore, according to the configuration of the present invention, a dedicated actuator for opening and closing the pallet holding device is not required, and the pallet stopper can be reliably operated without using a dedicated actuator, so that the cost can be reduced and the operation of the pallet stopper can be reduced. The swivel arm can be operated immediately without a sensor to be detected or a confirmation signal for sequence control, so that reliability can be improved, and the opening and closing time of the pallet holding device and the confirmation process are not required, so the cycle time is reduced. Can be shortened.

Further, according to a preferred embodiment of the present invention, the stopper member (12) is provided with a long striker portion (12).
a) or a position holding means (14) for holding the short striker portion (12b) so as to be positioned upward, which prevents the long striker portion and the short striker portion from turning below the horizontal. Pair of turning stoppers (1
4a) and a tension spring (14b) having one end fixed to the stopper member (12) and the other end fixed to the storage shelf (7). The tension spring always connects the stopper member to one of a pair of turning stoppers. It is urged toward crabs. With this configuration, in a state of being urged by the tension spring (14b),
Since the stopper member (12) can be held so that the long striker portion (12a) or the short striker portion (12b) is located upward, the displacement due to an earthquake or mechanical vibration is prevented, and the reliability is further improved. it can.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. In addition, the same reference numerals are given to the common parts in the respective drawings, and the duplicate description will be omitted.
FIG. 1 is a schematic diagram of a pallet holding device of a mechanical parking device of the present invention, and FIG. 2 is a diagram showing an (A) open position and a (B) closed position of the pallet holding device of the present invention. The pallet holding device of the present invention is attached to each of the storage shelves 7 (see FIG. 4) to prevent the pallet 2 from moving to the loading / unloading side. The pallet loading / unloading side is shown in FIG.
1A and 1B, it is on the right side, and in FIGS. 1C and 2, it is on the near side with respect to the paper surface.

As shown in FIGS. 1 and 2, the pallet holding device of the present invention includes a stopper member 22 that can pivot about a horizontal shaft 21 below the pallet 2. In FIG. 1, (A) shows the time of loading the pallet, and (B) shows the time of discharging the pallet. As shown in this figure, the rotating directions of the turning arm 10 at the time of taking in the pallet and at the time of discharging the pallet are opposite. As shown in FIG. 2, the turning arm 10 has a dog 10 a at its distal end which fits into the guide groove 2 a of the pallet 2, and the turning arm 10 takes the pallet 2 into the cart (load-in / out side), or Conversely, it is paid out to the storage shelf side. In FIG. 2, (A) shows the open position of the stopper, and (B) shows the closed position.

The stopper member 22 has long and short striker portions 22a and 22b orthogonal to each other. These striker portions 22a and 22b extend radially outward from the horizontal shaft 21 located below the pallet 2, and one of them is always located upward at the rest position. That is, in this embodiment, the stopper member 22
Is an L-shaped member composed of a long striker portion 22a and a short striker portion 22b, and the turning arm 10 is in contact with the inner surface thereof. Further, as shown in FIG. 2B, the long striker portion 22a is set long enough to prevent the pallet from moving toward the loading / unloading side at its tip when positioned upward. On the other hand, as shown in FIG. 2 (A), the short striker portion 22b is set to be sufficiently short so as not to hinder the movement of the pallet at its leading end when positioned upward.

The pallet holding device of the present invention further includes position holding means 24 for holding the stopper member 22 so that either the long striker portion 22a or the short striker portion 22b is positioned upward when stationary. As shown in FIG. 2, the position holding means includes a pair of turning stoppers 24a for preventing the long striker portion 22a and the short striker portion 22b from turning below the horizontal, and one end fixed to the stopper member 22 and the other. Extension spring 2 whose end is fixed to storage shelf 7
4b. As shown in FIG. 2 (A), when the stopper is in the open position, the tension spring 24b is located on the left side of the horizontal shaft 21 in the figure, and urges the long striker portion 22a to the left turning stopper 24a. I have. Similarly, FIG.
As shown in (B), in the closed position, the tension spring 24b is located on the right side of the horizontal axis 21 in the drawing, and the short striker portion 22
b is urged to the right rotation stopper 24a. As a result, the stopper member 22 is always set at 1 by the tension spring 24b.
It can be urged toward one of the pair of turning stoppers 24a.

FIG. 3 is an explanatory view of the operation of the pallet holding device according to the present invention. In this figure, (A) shows the time of loading the pallet, and (B) shows the time of discharging the pallet. FIG.
As shown in (A), the swivel arm 10 at the time of taking in the pallet
(The left rotation in this figure), the turning arm 10 turns the long striker portion 22a to rotate the short striker portion 22b.
2A to the open position of the stopper in FIG. 2A, and then the pallet 2 can be taken in. Similarly, FIG.
(B) As shown in FIG.
2 (right rotation in the drawing), the pallet 2 is paid out, and at the same time, the short striker portion 22b is turned by the turning arm 10 so that the long striker portion 22a faces upward.
(B) can be set to the closed position.

It should be noted that the present invention is not limited to the above-described embodiment, and various changes can be made without departing from the gist of the invention.

[0017]

As described above, the pallet holding device of the present invention can reliably operate the pallet stopper without using a dedicated actuator, and can detect the operation of the pallet stopper and the sensor for sequence control. The swing arm can be operated immediately without a confirmation signal, which has excellent effects such as an increase in reliability and a reduction in cycle time.

[Brief description of the drawings]

FIG. 1 is a schematic view of a pallet holding device of a mechanical parking device according to the present invention.

FIG. 2 is a view showing (A) an open position and (B) a closed position of the pallet holding device according to the present invention.

FIG. 3 is an operation explanatory view of the pallet holding device according to the present invention.

FIG. 4 is a configuration diagram of a mechanical underground parking device.

FIG. 5 is a configuration diagram of a pallet transfer device.

FIG. 6 is a schematic view of a conventional pallet holding device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vehicle 2 Pallet 2a Guide groove 3 Lift 4 Entry / exit berth 5 Lift cage 6 Lateral feeder 7 Storage shelf 8 Moving cart 9 Engaging member (dog) 10 Swivel arm 11 Pallet stopper 11a Swing shaft 12 Release air cylinder 21 Horizontal shaft 22 Stopper member 22a Long striker portion 22b Short striker portion 24 Position holding means 24a Rotation stopper 24b Tension spring

Claims (3)

[Claims] 1. A pallet holding device attached to each storage shelf (7) for preventing a pallet (2) from moving toward a loading / unloading side, wherein the stopper is pivotable about a horizontal axis (21) below the pallet. The stopper member includes a long and short striker portion (22a, 22b) extending radially outward from the horizontal axis and orthogonal to each other, and one of the striker portions is positioned upward. The long striker portion (22a) is set long enough to prevent the pallet from moving toward the loading / unloading side at the tip end, and the short striker portion (22b) is moved at the tip end. Is set short enough so as not to hinder the rotation. When the swivel arm (10) rotates at the time of taking in the pallet, the swivel arm turns the long striker portion to turn the short striker portion upward, Next, the pallet is taken in, and the pallet is dispensed by rotating the swivel arm when the pallet is dispensed, and at the same time, the short striker portion is swiveled by the swivel arm so that the long striker portion is directed upward. . 2. The rotation direction of the turning arm at the time of taking in the pallet and at the time of discharging the pallet is opposite, and the stopper member (22).
Are the long striker part (22a) and the short striker part (22
2. An L-shaped member comprising: b), wherein the swing arm is in contact with an inner surface thereof.
A pallet holding device for a mechanical parking device according to claim 1. 3. A position holding means (24) for holding the stopper member (22) such that the long striker portion (22a) or the short striker portion (22b) is located upward, wherein the position holding means has a long position. A pair of turning stoppers (24a) for preventing the striker portion and the short striker portion from turning below the horizontal, and a pull having one end fixed to the stopper member (22) and the other end fixed to the storage shelf (7). Spring (24
3. The mechanical parking device according to claim 2, wherein the tension spring always biases the stopper member toward one of the pair of turning stoppers. Pallet holding device.