JPH04173603A - Rack equipment with load transferring device - Google Patents

Abstract

PURPOSE:To make a running fork lighter and a driving motor more small-sized by elevatably installing a load supporting base on the top movable base of the running fork, and parallel-installing rails provided with guide rails for top stage movable base supporting on the load receiving frame of a load storage part on the rack side. CONSTITUTION:When a load W is lifted up to the load storage part 4 of a prescribed rack by a lifting load platform and stops, the load W is taken in load transferring devices 6A-6D which are on standby by a combination of advance/retract of a running fork 11 and vertical movement of a load supporting base 15. Next, the traveling carriage 10 of the load transferring devices 6A-6D are made to run along guide rails 5a, 5b to be transferred in the rack 1 or the storage part 4. Then, by a combination of advance/retract movement of the running fork 11 and vertical movement of the load supporting base 15, the load W is delivered to the storage part 4.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention provides a running truck that can run along a rack, and a running fork for loading and unloading that can move in and out of the truck in horizontal and lateral directions. The present invention relates to rack equipment equipped with a load transfer device consisting of:

(Prior art and its problems) The load transfer device in the conventional rack equipment of this type is as follows:
An elevating platform is provided on the traveling platform, and a running fork for loading and unloading that can move in and out in the lateral direction is provided on the elevating platform. By the forking action, the load is transferred between the load storage section on the rack side and the top of the traveling truck. That is, during load transfer, the running fork moves up and down while supporting the load with the fork tip (uppermost movable platform) that cantilevers from the top of the traveling cart into the load storage area on the rack side. Therefore, it is necessary for the running fork to have sufficiently high bending strength against vertical loads when extended in a cantilevered state.For this reason, conventional running forks are heavy and bulky. Ta. Moreover, this required a large motor to drive the running fork in and out, which had the disadvantage of making the whole system expensive.

(Means for Solving the Problems) In order to solve the above-mentioned conventional problems, the present invention includes a load support that can be raised and lowered and a load support that can be raised and lowered on the uppermost movable base of the running fork. A pair of left and right cargo receivers provided in each cargo storage section on the rack side is provided with a rail portion that movably supports the uppermost movable platform of the running fork via a guide roller. (Embodiment) An embodiment of the present invention will be described below with reference to the attached illustrative drawings.

In FIGS. 1 and 2, numeral 1.2 is a rack erected across the passage 3, in which horizontal rows of cargo storage sections 4 are stacked in four stages, one above the other. A pair of left and right guide rails 5a and 5b are attached to the passage 3 side of both racks 1 and 2 for each horizontal row of cargo storage sections 4 in each stage. Load transfer devices 6A to 6D are respectively supported by 5b so as to be horizontally movable. 7
Reference numeral A denotes an elevating loading platform for warehousing arranged outside one end of the rack 1, and 7B denotes an elevating loading platform for unloading disposed outside one end of the rack 2. 8A is a warehousing conveyor that connects with the elevating cargo platform 7A when the elevating cargo platform 7A is at the lowering limit level, and 8B is an unloading conveyor that connects with the elevating cargo platform 7B when the elevating cargo platform 7B is at the lowering limit level. It's a conveyor.

Each of the load transfer devices 6A to 6D has the same structure, and as shown in FIGS. 3 to 5, the guide rail 5a
, 5b through wheels 9, and a running fork 11 for loading and unloading provided on the traveling truck 10 so as to be movable in left and right directions.

The running fork 11 is movable in the left and right directions on a base 12 fixed on the traveling truck 10, an intermediate movable base 13 supported on the base 12 so as to be movable in the left and right directions, and an intermediate movable base I3. The intermediate movable base 13 is configured to move in and out of the uppermost movable base I4 supported by the base 12 in the left and right lateral directions, and the intermediate movable base 13 is moved in and out of the base 12 in the left and right directions. The uppermost movable base 14 is further moved in and out relative to the intermediate movable base 13 in conjunction with the movement of the uppermost movable base 13, and the uppermost movable base 14 is further moved in and out of the intermediate movable base 13. Since various support structures, the intermediate movable table driving means, and the uppermost movable table driving means are conventionally known, illustrations and explanations thereof will be omitted.

The uppermost movable base 14 of the running fork 11 includes:
A load support table 15 that can be raised and lowered, and a lifting drive means 16 that drives the load support table 15 up and down are provided. This elevating/lowering drive means 16 includes a pair of front and rear drive shafts 17a, +7b supported by the uppermost stage movable base 14, and this drive shaft 17a.
, 17b, and a motor 19 for driving both moving shafts 17a, 17b in forward and reverse rotation. 3 and 4 show a state in which the load support platform 15 is raised to the upper limit level by the cam 18, and by rotating the cam I8 by 180 degrees from this state, the load support platform 15 is raised to the lower limit level. A pair of front and rear guide rollers 20 are pivotally supported on both left and right sides of the uppermost stage movable base 14 of the running fork 11, which can be lowered to a maximum height. A pair of left and right idle rails 21a, each having a U-shaped cross section, are disposed on the traveling carriage 10, and the guide rollers 20 are movably fitted therein.

21b has been installed.

On the other hand, each cargo storage section 4 of the rack 1.2 is provided with a pair of left and right guide rails 2 on the traveling trolley IO when it stops at a load transfer position for each cargo storage section 4.
A pair of right and left U-shaped cargo receivers connected to 1a and 21b are storage frames 22a.

22b is constructed, and the running fork 11
Guide rollers 2 on both left and right sides of the uppermost movable table 14
It is configured to move from 0 to fit.

In the rack equipment configured as described above that allows for automatic loading and unloading, the cargo W to be stored is transferred from the loading conveyor 8A onto the lifting platform 7A waiting at the lower limit level. Then, the container W is lifted up to the level of the cargo storage section 4 of the rack 1 or 2 by the elevating loading platform 7A.

On the other hand, each of the load transfer devices 6A to 6D is waiting at the home position HP shown by imaginary lines in FIG.
When it stops at a certain level, the running forks 11 of the load transfer devices 6A to 6D waiting at the level move the load W on the lifting platform 7A to the load transfer devices 6A to 6D.
Take it to the side. At this time, the cargo receiving process consists of the advancing movement of the running fork 11 while the load support platform 15 is at the lower limit level, the upward movement of the load support platform 15 from the lower limit level to the upper limit level, and the backward movement of the running fork 11. A forking action is performed.

The load W taken onto the load transfer devices 6A to 6D is moved along the traveling trolley lO of the load transfer devices 6A to 6D by the guide rail 5a.
, 5b, the rack 1 or 2
is transported to a position corresponding to a predetermined cargo storage section 4. When the load transfer devices 6A to 6D stop at a predetermined position, the load W on the load transfer devices 6A to 6D is moved to a predetermined load storage section 4 of the rack 1 or 2 by the load transfer running fork 11. Transferred and stored to. At this time, the running fork 11 moves toward the rack 1 or 2 side while the load support platform 15 is at the upper limit level, the load support platform 15 moves downward from the upper limit level to the lower limit level, and the running fork 1
A forking operation for cargo transfer consisting of a backward movement of 1 is performed, and the cargo W is supported by the left and right sides of the bottom of the pair of left and right cargo receivers in the cargo storage section 4 by the racks 22a and 22b.

When unloading the load W stored in the load storage section 4 of the rack 1 or 2, the load transfer devices 6A to 6D and the elevating loading platform 7B on the unloading side are operated in the reverse order of the above-mentioned warehousing operation. The load W transferred from the transfer devices 6A to 6D onto the elevating loading platform 7B on the shipping side is lowered to the level of the shipping conveyor 8B by lowering the lifting loading platform 7B, and then the loading platform 7B is lowered to the level of the unloading conveyor 8B.
It is possible to send the cargo W onto the delivery conveyor 8B from above.

The movement of the running fork 11 in the forking operation for picking up and forking operation for loading and unloading is carried out by moving the intermediate movable base 1 relative to the base 12 as described above.
3 and the moving in and out of the uppermost movable base 14 with respect to the intermediate movable base 13, and the uppermost movable base 1
The lifting and lowering of the load support platform 15 relative to the load supporting table 4 is performed by the lifting driving means 6 as described above. When the uppermost movable base 14 moves toward the cargo storage section 4 on the rack 1.2 side, the guide rollers 20 on both the left and right sides of the uppermost movable base 14 move against the guides on the traveling trolley 10. rail 21
A, 21b, the cargo receiver transfers into the grooved rail portions 23a, 23b of the service frames 22a, 22b and rolls, and conversely, when moving backward onto the uppermost stage movable platform 14 or the traveling trolley 10, the uppermost movable platform The guide rollers 20 on both the left and right sides of the stand 14 are
The cargo is received using the grooved rails 23a and 2 of the racks 22a and 22b.
Guide rails 21a, 21 on the traveling trolley 10 from inside 3b
Transfer to b and roll. That is, the uppermost movable table 14 is
Always guide rail 21a via guide roller 20,
21b or the cargo receiver moves while being supported by the grooved rail portions 23a, 23b of the racks 22a, 22b.

Incidentally, as in the above example, the Running Four '71
When the loading and unloading platforms 7A and 7B are used, the loading and unloading loading platforms 7A and 7B are also equipped with the guide rollers 20. The uppermost movable base 1 of the running fork 11 via
It is possible to lay a pair of right and left rails that movably support 4.

(Operations and Effects of the Invention) As described above, according to the rack equipment with a load transfer device of the present invention, loads can be transferred between a traveling cart that can run along the rack and the load storage section of the rack. is a conventional running fork itself due to the forking action, which is a combination of the movement of the running fork on the running truck into and out, and the lifting and lowering movement of a load support platform that is movable up and down on the uppermost movable platform of the running fork. The pair of left and right cargo receivers provided in each cargo storage section on the rack side are connected to the uppermost movable platform of the running fork via guide rollers. Since a rail portion is provided to movably support the running fork, when the running fork is extended in a cantilevered manner for loading and unloading, that is, when the uppermost stage movable platform is moved forward in a cantilevered manner. The vertical load acting on the uppermost movable platform can be transferred via the guide rollers to the cargo rack on the rack side.

Therefore, there is no need to increase the bending strength of the running fork against the vertical load when the running fork is extended in a cantilevered manner for load transfer.
By using lightweight and low-volume members for the intermediate movable base, the uppermost movable base, and the support means between each base that constitute the running fork, the entire running fork can be made small and lightweight. Therefore, even though the uppermost movable base of the running fork is provided with a load support platform that can be raised and lowered and a means for driving it up and down, a small and small capacity motor is used to drive the running fork in and out. This can be done smoothly and reliably.

[Brief explanation of the drawing]

Figure 1 is a schematic plan view of the entire structure, Figure 2 is a vertical side view of the same, Figure 3 is an enlarged vertical front view showing the state of load transfer between the load transfer device and the rack, and Figure 4 is the load transfer state. Vertical side view of loading device, No. 5
The figure is a plan view showing a load transfer state between the load transfer device and the rack. 1, 2... Rack, 4... Load storage section, 5a, 5b
...Itrail for load transfer equipment, 6A to 6D...
Load transfer device, 7A... Elevating loading platform for warehousing, 7B... Elevating loading platform for unloading, 8A... Conveyor for warehousing, 8B...
Conveyor for delivery, 1 discharge...traveling cart, 11... running fork for loading and unloading, 12... base, 13... intermediate movable platform, 14... top movable platform, 15... Liftable load support platform, 16... Lifting drive means, 18, cam,
19. Motor, 20... Guide roller, 21a,
21b...Guide rail, 22a, 22b...Carriage receiving stand, 23a, 23b...Groove-shaped rail portion.

Claims (2)

[Claims] (1) In a rack facility equipped with a load transfer device consisting of a traveling truck that can run along the rack and a running fork for loading and unloading that can move in and out horizontally on the traveling truck. , on the uppermost movable base of the running fork,
A load support stand that can be raised and lowered and a means for driving the load support stand up and down are provided. Rack equipment with a load transfer device that includes a rail section that movably supports the platform. (2) A pair of left and right guide rails that movably support the uppermost movable base of the running fork via guide rollers are laid on the running truck.
) rack equipment with load transfer equipment.