JPS62185607A - Storage equipment using pallet provided with leg - Google Patents

Abstract

PURPOSE:To make the extending and retracting level and elevating stroke of a fork equal to those as used for handling flat pallets, by providing a running fork for holding the bottom surface of a pallet between both leg parts thereof, to an introduction and delivery travel crane running along racks. CONSTITUTION:When pallets 6-8 provided with legs and stored in a rack 4 are delivered, a crane 1 is moved to a position adjacent to one of storage sections 10-12 in which a pallet to be delivered is stored, and an elevating carriage 2 is then elevated to locate a running fork 3 which therefore opposes a position between a pair of leg sections 9a, 9b of the pallet to be delivered and slightly below the bottom surface thereof. The running fork 3 is elevated by a predetermined amount by means of the carriage 2 after the fork 3 is advanced toward a position below the bottom surface of the pallet 2, resulting in the lift-up of the pallet to be delivered, slightly above support frames 13a, 13b. Then the running fork 3 is retracted to a position above the carriage 2 to shift the pallet to be delivered from the storage rack 4 onto the carriage 2.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to storage equipment equipped with a storage shelf and a traveling crane for loading and unloading that travels along the shelf, and in particular, to a storage facility that is equipped with a storage shelf and a traveling crane for loading and unloading that travels along the shelf. This relates to storage equipment.

(Prior art and its problems) A conventional pallet with legs has legs at the four corners of the bottom of the pallet. The pallet was stored so that the legs rested on a pair of supporting members. Therefore, compared to the case where a flat pallet without legs is stored, the bottom surface of a pallet with legs is at a higher level. If the retraction level is not changed between when handling flat pallets and when handling pallets with legs, the lifting stroke of the running fork must be made larger than when handling only flat pallets. This increases the cycle time required for loading and unloading and reduces work efficiency. However, in order to shorten the lifting and lowering stroke of the running fork to the minimum, the control becomes complicated if the egress/retraction level is changed between when handling a flat pallet and when handling a pallet with legs.

Of course, the legs of the pallet with legs are located at the four corners of the bottom of the pallet, so if the support material is configured to directly support the bottom of the pallet between the front and rear legs, the level of the bottom of the pallet when the pallet with legs is stored is It is possible to make the bottom level of the pallet the same as that of the flat pallet when it is stored.
・When hoisting a pallet with legs, the legs must be pulled out above the level of the support material. The downward stroke becomes large and the same problem as above occurs.

(Means for Solving the Problems) The present invention has been made to solve the problems of the conventional art as described above. Each storage section of the storage shelf for the pallet is provided with a pair of left and right valet supports that support the bottom surface between the legs and both side edges of the pallet, The crane for loading and unloading the warehouse, which travels along the pallet, is provided with a running fork that supports the bottom surface between the legs of the pallet.

(Operations and Effects of the Invention) According to the configuration of the present invention as described above, the bottom level of the legged pallet stored in the storage shelf is the same as the bottom level of the flat pallet when the flat pallet is stored. Moreover, the running fork supports the bottom of the pallet with legs in the same way as when handling a flat pallet, and since there is no supporting material on the storage shelf side between the front and back of the legs of the pallet with legs, the pallet with legs Even though the pallet is used, the egress/removal level and lifting stroke of the running fork when the valet enters and exits the warehouse can be made exactly the same as when handling a flat pallet. Therefore, even if flat pallets without legs are mixedly loaded on the storage shelf, there is no need to change the control of the running forks during loading and unloading operations between when handling pallets with legs and when handling flat pallets, making the control simple and easy. In addition, the cycle time for loading and unloading work can be shortened to the same level as when only flat pallets are handled.

Also, when installing legs at the four corners of a pallet (left and right sides when viewed from the front), the spacing between the left and right legs will differ depending on the width of the pallet, so when handling a pallet with wide legs, use a running fork. The space between the pallet and the legs in the left and right direction increases, and there is a risk that the pallet will skid on the running fork.However, in the present invention, the space between the left and right legs corresponds to the width of the running fork, regardless of the width of the pallet. Since the spacing can be kept constant, the above-mentioned danger can be avoided even when handling wide pallets.

Furthermore, as mentioned above, the distance between the left and right legs can be set to a constant distance corresponding to 111 of the running fork regardless of the width of the pallet, so it is possible to set the distance between the left and right legs at a constant interval corresponding to 111 of the running fork, regardless of the width of the pallet. If the installed load handling platform is configured to support the pallet via legs with constant intervals, even when handling various 111 legged pallets, the load handling platform only needs to be provided with a pair of leg support parts. The structure becomes a cage.

(Example) An example of the present invention will be described below based on the attached illustrative drawings. 1 is a conventionally well-known traveling crane for loading and unloading,
A running fork 3 that can move in and out in left and right directions is provided on the lifting knowledge 2, and storage shelves 4 are erected on both sides of the traveling path of the crane 1. In the illustrated example, the running fork 3 is composed of a pair of left and right forks 5a and 5b that move in and out in conjunction with each other, but it may be a running fork composed of a single wide fork.

The pallet with 11 large legs 6, the pallet with medium width legs 7, and the pallet with narrow legs 8 stored in the storage shelf 4 include:
Legs 9a and 9b are protruded from the left and right edges of the bottom at symmetrical positions, respectively, and the distance d between the left and right legs 9a and 9b is equal to
It is constant regardless of IIIDI-D3, and is set to be slightly wider than the width W of the running fork 3 in the crane 1.

The storage shelf 4 has a large number of three-dimensionally formed large-width pallet storage sections 10, medium- and medium-sized pallet storage sections 11, and small 1+vallet storage sections 12, and each storage section 10 to 12 has a corresponding one of the A pair of left and right barre supports 13a, +3b are installed to support the bottom surfaces between the legs 9a, 9b and both side edges of the legged pallets 6-8. 14 is a support for the storage shelf 4, and the support members +3a and 13b are connected to this support 1.
It is attached to 4. Reference numeral 15 denotes a load handling platform installed beside the home position of the crane, and is provided with a pair of leg support parts 16a and 16b capable of supporting the legs 9a and 9b of each of the legged barens 10 to 12. ing.

When taking out the legged pallets 6 to 8 stored in the storage shelf 4, the crane 1 is moved to a position adjacent to the storage part in which the pallet to be taken out is stored among the storage parts 10 to 12, and The elevating carriage 2 is raised and lowered, and the running fork 3 is opposed to a position slightly lower than the bottom surface of the pallet between a pair of legs 9a and 9b of the pallet to be delivered. After advancing the running fork 3 to the lower side of the bottom surface of the pallet to be delivered in this state, the running fork 3 is raised to a certain upper limit by the elevating carriage 2, and the pallet to be delivered 1- is moved to the support member 13a.

Raise it slightly from +3b. Next, running fork 3
The pallet to be delivered is pulled out from the inside of the storage shelf 4 to above the elevating and lowering carriage 2. At this time, the running fork 3 supports the bottom surface of the pallet while being fitted between the left and right legs 9a and 9b of the pallet to be delivered, so that the pallet to be delivered is placed on the running fork 3 regardless of the pallet to be delivered. There is no sliding left or right.

The pallet to be delivered is pulled out onto the lowering carriage 2 and is transported to a position adjacent to the loading platform 15 at the home position by the movement of the crane 1, and is unloaded by raising and lowering the lifting carriage 2 and moving the running fork 3 in and out. Due to the work, the legs 9a are placed on the supports 16a, 16b.
, 9b are lowered onto the cargo handling platform 15.

The operation of loading the legged pallets 6 to 8 on the handling platform 15 into the storage area to which +l+ is applied among the storage units 10 to 12 in the storage shelf 4 is performed in the reverse order of the above-mentioned unloading operation. It's fine.

[Brief explanation of drawings]

FIG. 1 is a front view showing a storage shelf, a pallet with legs, and a running fork, and FIG. 2 is a cross-sectional plan view showing a traveling crane for loading and unloading and storage shelves on both left and right sides. 1... Traveling crane for loading and unloading, 2... Lifting carriage, 3... Running fork, 4... Storage shelf, 6
~8... Kiharesoto with legs, 9a, 9b river pallet legs, 10-12... storage section, 13a, 43b... pallet support material, 15... cargo handling platform.

Claims (1)

[Claims] Legs are provided inside the left and right edges of the bottom of the pallet, and each storage section of the storage shelf of the pallet has legs.
A pair of left and right pallet supporting members are provided to support the bottom surface between the legs and both side edges of the pallet, and the loading/unloading traveling crane that travels along the storage shelf is provided with a pair of left and right pallet supporting members that support the bottom surface between the legs of the pallet and both side edges. A storage facility using a pallet with legs and having supporting running forks.