JPH0645008Y2 - Pallet drop prevention device for elevator parking system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a pallet fall prevention device for an elevator parking device.

(Prior Art) Generally, an elevator-type parking apparatus includes an elevator that supports a pallet on which a vehicle is placed and that is raised and lowered, and a plurality of storage shelves for accommodating the vehicle together with the pallet are provided along the hoistway of the elevator. It is arranged in multiple stages, and an elevating table and a storage shelf are connected to transfer a pallet between them (see, for example, JP-A-62-268475). And then
In such an elevator-type parking apparatus, it is usual that a stopper for engaging with a pallet and preventing the pallet from falling from the storage rack is provided on each storage rack so as to be retractable.

(Problems to be solved by the invention) By the way, the stopper for preventing pallet drop as described above is effective for the safety of the parking device by detecting the operating state of the stopper so that the presence or absence of abnormality can be confirmed. Although it contributes, generally, the confirmation means is not provided. On the other hand, it is conceivable to provide a detection means such as a limit switch interlocked with the operation of the stopper, but in that case, it is necessary to provide the detection means on all the storage shelves of the parking device, and the detection means is normally Adjustment is required for actuation, and the detection means causes a large increase in cost of the parking device.

That is, an object of the present invention is to be able to detect the operation of the stopper without causing an increase in cost.

(Means for Solving the Problem) With respect to such a problem, the present invention connects the elevators to the storage shelves and confirms whether the stoppers of the storage shelves are abnormal or not. In view of the fact that it may be carried out when transferring the pallet, the detecting means for the above-mentioned confirmation is provided on the lifting table side, and the operating state of the stopper is detected at the connection position with the storage shelf. It is possible to check the presence or absence of abnormality of stoppers of all storage shelves when necessary.

That is, the means includes an elevating table that supports and elevates a pallet on which a vehicle is placed, and storage shelves arranged in multiple stages along the elevating path of the elevating table to accommodate the vehicle together with the pallet. In an elevator type parking apparatus in which a pedestal and a storage shelf are connected to transfer a pallet between them, the pallet is engaged with each of the storage shelves so as to prevent the pallet from dropping from the storage shelf. A pallet fall prevention device characterized in that a stopper is provided so as to be retractable, and a detection means for detecting whether the stopper is retracted or retracted is provided on the elevating table at a connection position with a storage shelf.

(Operation) In the pallet drop prevention device, when the pallets are transferred between the lift table and the storage shelves, the two are connected and the mutual positional relationship is determined. Therefore, the storage means is provided by the detection means provided on the lift table. It is possible to detect the appearance of the stopper.

(Effect of the Invention) Therefore, according to the present invention, the elevating table is provided with the detection means for detecting the appearance of the stopper for preventing the pallet drop at the connection position with the storage shelf. It is possible to detect the presence or absence of a stopper to confirm whether or not there is an abnormality, and it is economical to perform inspection or maintenance for this detection, which is economical. Since it is possible to check whether the stopper is abnormal before moving it from the connection position with the storage shelf, if the stopper malfunctions, return the pallet from the storage shelf to the elevator and stop using the storage shelf. This makes it possible to reliably prevent the pallet from falling.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows the overall structure of the elevator parking apparatus 1. In the apparatus, reference numeral 2 is an elevating platform that supports a pallet 3 on which a vehicle W is placed and ascends and descends, as shown in FIG. 2, and is disposed in a hoistway 5 provided inside a building 4. Further, 6 and 7 are parking portions arranged on both sides of the hoistway 5, respectively. A vehicle W is pallet 3 in each parking section 6, 7.
A large number of storage shelves 8 for accommodating together are arranged in multiple stages along the hoistway 5, and each of the storage shelves 8 and the elevating table 2 are connected to transfer the pallet 3 between them. It is like this.

The elevating table 2 has a rectangular shape and is hung up and down by wire ropes 9 connected to the four corners thereof. That is, the wire rope 9 is suspended by the support pulley 11 at the upper end of the hoistway 5 and the drive pulley 12 that is rotationally driven by the drive motor, and one end of the wire rope 9 is lifted by the hoist table 2.
The other end is connected to the balance weight 13 so that the elevating table 2 can be moved to a predetermined connecting position with the storage rack 8 by the traveling of the wire rope 9.

Next, the pallet fall prevention device in the elevator parking device 1 will be described.

As shown in FIG. 2, each of the storage shelves 8 is provided with a stopper 15 for preventing the pallet 3 from dropping from the storage shelves 8 so as to be retractable. On the other hand, the elevating table 2 is provided with a connecting rail 16 for connecting the elevating table 2 and each of the storage shelves 8 and a detecting means 17 for detecting whether the stopper 15 appears or disappears. A detection signal is output to display means for displaying (alarm) the presence or absence of 15 abnormalities by a lamp or a siren. The second
In the figure, regarding the connecting rail with the storage shelf 8 of the parking portion 6 on the left side and the detection means for the stopper of the storage shelf 8,
The illustration is omitted.

First, as shown in FIG. 3, the stopper 15 has a base end portion supported by a horizontal pin 18 at an end portion of the storage rack 8 near the hoistway 5, and a tip end of the stopper 15 on the pallet 3 of the storage rack 8. The engaging portion 15a is provided so as to prevent the movement (fall) to the hoistway 5 side. The stopper 15 is supported by the horizontal pin 18 so that the engaging portion 15a is accommodated in the storage shelf 8a.
It is configured to rotate between an operating position in which the pallet 3 is protruded upward to prevent the pallet 3 from moving and a retracted position in which the pallet 3 is retracted by being retracted from above the storage rack 8. Then, the reflection plate 19 is attached to the back of the engaging portion 15a, that is, the hoistway 5 side so that its reflection surface faces the hoistway 5 side at the operating position.

Then, for the rotation of the stopper 15, a biasing rod 20 for projecting the stopper 15 to the operating position is rotatably supported by a horizontal pin 21 below the stopper 15. That is, the urging rod 20 has the stopper 15 at the tip.
Has a roller 22 that abuts against the
Is urged to raise the stopper 15 to the operating position. In this case, the urging rod 20 comes into contact with the contact plate 24 by the urging force of the spring 23 to bring the stopper 15 into the operating position, and by receiving a downward load via the stopper 15, the urging rod 20 rotates downward. The stopper 15 is moved to allow the stopper 15 to rotate to the retracted position.

The connecting rail 16 provided on the lifting table 2 side is
Are supported by horizontal pins 25 at the ends of both parking portions 6 and 7 side. In this case, the connecting rail 16 is erected vertically by the operation of the cylinder device 26 connected to the connecting rail 16 so that the connecting rail 16 becomes horizontal and a connecting position for connecting both rails (not shown) of the elevating table 2 and the storage rack 8. When the table 2 is moved up and down, the table 2 is rotated between the retracted position and the retracted position so as not to interfere with the storage rack 8. Then, a stopper actuating pin 27 for fixing the stopper 15 to the retracted position by pivoting to the connecting position is fixed to the connecting rail 16.

The detecting means 17 is a photo sensor having a light projecting portion and a light receiving portion, and is provided at each end of the lift 2 near the parking portions 6 and 7. That is, this detection means
17 is provided so that the light projecting portion and the light receiving portion face the reflector 19 of the stopper 15 in the operating position in a state where the lifting table 2 is connected to the storage shelf 8, and the light from the light projecting portion is emitted. Depending on whether the light is reflected by the reflection plate 19 and received by the light receiving part, the stopper 15
You can detect the appearance and disappearance of.

Therefore, in the above elevator type parking apparatus, the vehicle W
When loading and unloading the vehicle, the elevator 2 is suspended by the wire rope 9 and moved up and down to stop at the connection position with the storage rack 8 in the planned parking section, and the connecting rail 16 is rotated to the connecting position to raise and lower the elevator. 2 will be connected to both rails of the storage rack 8. When the connecting rail 16 is rotated to the connecting position, the stopper operating pin 27 provided on the connecting rail 16 pushes down the stopper 15 urged to the operating position of the storage rack 8 to the retracted position, and lifts the platform. It enables transfer of the pallet 3 between the 2 and the storage rack 8. In this case, the stopper 15 is detected by the detector 17 to detect the presence or absence of the stopper 15 and the presence or absence of the abnormality is confirmed by the indicator.
It is possible to prevent the transfer work of the pallet 3 from being performed in the state where the pallet 15 is in the operating position, that is, the accident such as the pallet 3 and the stopper 15 being damaged due to the transfer work.

Further, when the vehicle W is moved together with the pallet 3 or only the empty pallet 3 is moved to the storage rack 8 and then the connecting rail 16 is erected to the retracted position, the stopper 15 causes the stopper operating pin to move.
The pushing down by 27 is released, and the biasing rod 20 is rotated by the biasing force of the spring 23, whereby the spring 23 projects to the operating position. Then, the presence or absence of this protrusion is detected by the detection means 17 and confirmed by the display means, so that the lifting platform 2 is connected to the storage rack 8 only when the stopper 15 is projected to the operating position. It can be moved from the position. That is, when the stopper 15 does not project to the operating position due to a malfunction, the pallet 3 can be prevented from falling by returning the pallet 3 from the storage rack 8 to the lift table 2 and stopping the use of the storage rack 8. .

Then, as described above, the elevating table 2 and the storage rack 8 are integrated by the connection by the connecting rail 16, and the positional relationship between the detecting means 17 of the elevating table 2 and the stopper 15 of the storage rack 8 is fixed. It Therefore, of course, in addition to confirming the operation of the stopper 15 in this connected state, the lifting table 2 can be operated even when the above-mentioned connection is released.
Unless the above is operated, the above positional relationship will not collapse,
The operation of the stopper 15 can be surely confirmed.
Then, it is possible to confirm the operation of the stopper 15 on all the storage shelves 8 of the parking portion on one side of the hoistway 5 by one detecting means 17 provided on the elevating table 2 and to confirm the operation of the stopper 15 surely. One detecting means 17 is also used for adjustment.
The adjustment work will be easier.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, FIG. 1 is an overall configuration diagram of an elevator-type parking device, FIG. 2 is a partially sectional front view showing the relationship between a lift and a storage rack, and FIG. 3 is a stopper. It is a front view which shows the relationship between and its operation detection means. 1 ... Parking device 2 ... Lifting platform 3 ... Pallet 5 ... Hoistway 8 ... Storage shelf 15 ... Stopper 17 ... Detection means

Claims (1)

[Scope of utility model registration request] 1. An elevating table for supporting a pallet on which a vehicle is mounted to ascend and descend, and a storage shelf arranged in multiple stages along a hoistway of the elevating table for accommodating the vehicle with the pallet.
In an elevator type parking device in which the elevator and the storage rack are connected to transfer the pallets between them, the pallets are attached to the storage racks so as to prevent the pallets from falling from the storage racks. A pallet fall prevention device for an elevator-type parking apparatus, wherein a matching stopper is provided so as to be retractable, and a detection means for detecting whether the stopper is retracted is provided on the elevating table at a position where the elevator is connected.