JPH042888Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field]

TECHNICAL FIELD The present invention relates to a three-dimensional storage device that is used for loading purposes without using storage shelves.

[Prior art]

For example, in port storage facilities and the like, containers are stacked and stored outdoors in multiple stages without using storage shelves in order to make effective use of limited space. As a device for loading containers in multiple stages and accommodating them three-dimensionally, for example,
There is something described in the publication. The stack device disclosed in this publication has a structure in which a self-propelled traveling frame that can run vertically and horizontally is provided with a guide post, and a plurality of fork devices that can be raised and lowered are arranged side by side on the guide post. Other examples of stack devices include
There is one described in Publication No. 24779. The structure of the stack device disclosed in this publication is that an outer frame that runs along a guide rail is equipped with one cage that can be raised and lowered, and two fork devices and an operator's room are installed side by side in this cage. It is.

[Problems with conventional technology]

However, the conventional devices described above have the following problems. (a) The stack device described in Japanese Utility Model Application Publication No. 52-27077 is a self-propelled type that does not use a guide rail.
It is easy to cause misalignment in the running path. For this reason, it is difficult to automate travel, loading, and unloading. Furthermore, since the fork device has a cross-link type fork extension structure, its load-bearing strength when extended is insufficient, and it cannot handle heavy loads. Furthermore, since the cross link and the fork located at the end of the cross link protrude forward, it is necessary to make the running path wide so that the fork does not get in the way when the vehicle is running. (b) In the stack device described in Japanese Utility Model Application Publication No. 47-24779, two fork devices are arranged side by side in one cage, and each cannot be raised or lowered independently. For this reason, even if it is efficient to load and unload items from shelves installed side by side at the same height, two machines cannot simultaneously load and unload items from shelves at different heights, improving work efficiency. In,
Not enough. In addition, the fork of the fork device can be extended to both the left and right sides of the cage, but in order to obtain a sufficient extension stroke of the fork, the width of the cage must be set wide, and the width of the running section of the stack crane must be set accordingly. It must be taken widely. As described above, all of the above devices have problems in making the stack device compact and space-saving. At present, it is difficult to secure sufficient housing space due to soaring land prices. Therefore, there is a strong need for a stacking device that requires only a small installation space, can load a large amount of cargo within the same area, and can utilize land effectively.

[Purpose of invention]

Therefore, it is an object of the present invention to provide a three-dimensional storage device that can load as much cargo as the installation space can reduce if the area is the same. Another object of the present invention is to provide a three-dimensional storage device that improves loading efficiency and allows efficient loading and unloading of loaded items.

[Structure of the idea]

The structure of the present invention taken to achieve the above object is as follows. That is, the present invention is a device for loading and unloading baggage into and out of a storage section in which baggage is loaded and stored in multiple stages, and this device includes a guide rail installed in the storage section; A traveling stack device; This stack device includes; a base; and a plurality of fork devices arranged in parallel to the base so as to be able to rise and fall freely, and each of which moves up and down independently; this fork device includes; , an elevating table; two types of pinion gears with different numbers of teeth driven by an interlocking shaft provided on the elevating table; a rack gear that meshes with the pinion gear with fewer teeth among the pinion gears; a sliding frame that is extended along one side or both sides of the guide rail; and a fork that has a rack gear that meshes with a multi-toothed pinion gear among the pinion gears and is movably provided on the sliding frame; The fork is a three-dimensional storage device that is extended to the forward side of the sliding frame as the sliding frame is extended.

【Example】

The present invention will be explained in more detail based on embodiments shown in the drawings. FIG. 1 is a schematic front view of one embodiment, and FIG. 2 is a schematic side view. Symbol A is a three-dimensional storage device, which includes a monorail stacker 1, which is a stacking device, and an arbitrary number of containers 20.
It is equipped with a storage section 2 in which cargo is loaded. The monorail stacker 1 includes a guide rail 11, a guide rail 12, and a lift device 13. The guide rail 12 is laid on the floor surface, and the guide rail 11 is constructed above in parallel with the guide rail 12. The base 14 of the lift device 13 is provided with running wheels 141 that are driven by a running motor M1 provided at the top and run on the guide rails 12. At the top of the base 14, three masts 15a, 1
5b and 15c are standing upright. Mast 15a,
15c each has one lifting guide 151.
However, the mast 15b has two lifting guides 151.
are provided, and masts 15a, 15b, 15
The vertices of c are connected by an upper beam 16. A guide wheel 161 is provided above the upper beam 16 and comes into contact with the guide rail 11 therebetween. Thereby, the lift device 13 is supported by the guide rail 11 and is movable on the guide rail 12. Also, among the upper beams 16, masts 15a and 15b
Hanging sprockets 163 are provided on the front and back surfaces of both sides between the masts 15b and 15c. Hoisting devices 17, 17a are provided on the outer upper portions of the masts 15a, 15c. hoisting device 17,
17a consists of a hoisting machine 171 equipped with a hoisting sprocket 173 and a hoisting motor M2. Reference numeral C designates a suspension chain, one end of which is connected to the upper part of the lifting platform 180 of the fork devices 18, 18a, which will be described later, and is hung on the sprocket 163 of the upper beam 16, then on the hoisting sprocket 173, and then on the sprocket 159. with the other end hanging down. The code 158 is a chain case, and the hanging chain C
The ends of the chain C are accommodated to prevent the suspension chain C from swinging and getting in the way when the fork devices 18, 18a are raised and lowered. Between the masts 15a and 15b, and the mast 15
Between b and 15c are fork devices 18 and 15c, respectively.
18a is attached, and the fork device 18,1
8a is raised and lowered by a hoisting device 17 and a chain C. The fork devices 18, 18a include a lifting platform 180 that is U-shaped when viewed from the front, and a fork 188 that is provided on the lifting platform 180 and can move in and out in the left and right directions in FIG. On both sides of the lift table 180, there are provided lift guide wheels 19 that abut on both sides of the lift guide 151, and lift guide wheels 19a that abut on the insides of the masts 15a, 15b and masts 15b, 15c. FIG. 3 is a sectional view showing the structure of the fork device, and FIGS. 4a and 4b are schematic side views showing the movement of the fork device. A base 181 is provided on the upper surface of the lifting table 180, and a frame 182 is attached to the base 181. In the upper part of the frame 182, there are feed grooves 183, 18 extending over almost the entire width in FIG.
3a is formed. Feed groove 183, 183a
As shown in FIG. 3, two sets are provided facing each other. Sliding frames 184, 184a having a U-shape in front view and having a rack gear 184g at the bottom are mounted between the feed grooves 183, 183a. sliding frame 18
Fork 188, 188a is attached to 4, 184a. Fork 188, 188a is H
It has a mold shape, and feed grooves 185, 185a are provided on both sides. Guide rollers 186, 186a are attached to both side walls of the sliding frames 184, 184a. The guide roller 186 is inserted into one feed groove 183 of the frame 182, and the guide roller 186
6a is the feed groove 185 of the fork 188, 188a
It is inserted into a. Folk 188, 188a
A fork plate 187 having a rack gear 189 at the bottom of the center portion is attached between them. At both ends of the rack gear 189, there are pinion gears 1, which will be described later.
Hook portions 189g, 189h are provided that mesh with the hook teeth 191g, 191h of the rack gears 91, 191a, and are formed slightly deeper than other portions of the rack gear 189. The number of teeth of the rack gear 189 is set to be slightly smaller than that of the pinion gears 191, 191a, and the hook teeth 191g mesh with the hook portions 189g, and the hook teeth 191h mesh with the hook portions 189h. Two interlocking shafts 190 and 190a are arranged in parallel on the base 181 by bearings 194, passing through the frame 182. The interlocking shafts 190, 190a include
Rack gear 184g of sliding frame 184, 184a,
2 pinion gears 1 each meshing with 184h
93, 193a are attached. Two pinion gears 193 and two pinion gears 193a
Pinion gears 191, 191a that mesh with the rack gear 189 of the fork plate 187 are installed between them. The pinion gears 191, 191a are formed to have a larger diameter than the pinion gears 193, 193a (in this embodiment, the ratio of the number of teeth is about 1:2.4).
In addition, the pinion gears 191 and 191a each have one hooking tooth 19 formed slightly higher than the other teeth.
1g and 191h are provided. The interlocking shafts 190, 190a have an interlocking gear 192.
(The interlocking gear 192 on the interlocking shaft 19a side is not visible in the figure) is attached. And the lifting platform 18
A drive motor M3 is attached to the drive motor M3, and a drive gear 198 of the drive motor M3 and each interlocking gear 192
A chain (not shown) is spanned between. The movement of the fork devices 18, 18a will be explained with reference to FIGS. 3 and 4a and 4b. Drive motor M3 is controlled by a control device (not shown).
is driven, and the interlocking shaft 190,
190a rotates in the required direction. The sliding frames 184, 184a are pinion gears 19
At the same time, the forks 188, 188a are fed out by the pinion gears 191, 193a.
Approximately 191a of sliding frames 184, 184a
Sliding frame 18 is extended with a stroke of 2.4 times
It stops at a predetermined position of 4,184a. (4th
(See Figure a) With the forks 188, 188a stopped at predetermined positions, the sliding frames 184, 184a are continuously extended by the pinion gears 193, 193a, and when they reach the predetermined positions, the drive motor M3 is stopped. Control such as stopping the drive motor M3 is performed by a limit switch or the like. (See Figure 4b) Forks 188, 188a and sliding frame 18
When 4,184a returns to its original state, it moves roughly in the opposite direction to the above, but fork 188,188a
When the forks 188, 188a are returned, the hooking portion 189g and the hooking tooth 191g are reliably engaged, thereby smoothly meshing the rack gear 189 and pinion gear 191. Furthermore, the feeding of fork 188, 188a is as follows.
In Fig. 2, it is possible to move in both left and right directions, and
Since it is a double feeding type, a sufficient feeding amount can be obtained, and the width of the lift device 13 does not have to be so wide, so that the device can be made compact. A control panel 142 controls the movement of the lift device 13 and fork devices 18, 18a. The container 20 installed in the storage section 2 has a bottom plate 2.
A frame body 22 is assembled on top of the base plate 1, and supporting legs 23 are provided below the bottom plate 21. The monorail stacker 1 arranges them in order from the bottom on the mounting tables 29 on both sides of the guide rail 12, and then stacks them to form a storage section. (Operation) The operation of this embodiment will be explained by taking as an example the case where the lowest container among four stacked containers is carried out. (1) The lift device 13 controlled by the control panel 142 moves along the guide rails 11 and 12, and the fork device 18 of one of the lift devices 13
Stop so that a is in front of the row in which the target containers 20 are stored. (2) The fork device 18a rises, the drive motor M3 is driven, and the fork plate 187a is inserted under the container 20 one step above the target container 20. Then, the fork device 18a rises slightly to float the three tiers of containers 20, and the fork plate 187 is returned to accommodate the three tiers of containers 20 in the lifting frame 180. (3) The lift device 13 moves and the fork device 18
The container 20 is stopped so that it is in front of the target container 20. The drive motor M3 is driven to insert the fork plate 187 under the target container 20. The fork device 18 rises slightly, floats the container 20 by the fork plate 187, returns the fork plate 187, and lifts the container 20 into the lifting frame 1.
Set it to 80. (4) The fork device 18a is lowered to the same height as the fork device 18, the lift device 13 is moved, and the fork device 18a is stopped so that the three-tiered container 20 comes to its original position. Then, the fork plate 187a is extended and the three-tiered container 2 is opened.
0 is lowered, the fork plate 187a is returned to its original position, and the lift device 13 is moved to carry out the target container 20. Note that the present invention is not limited to the illustrated embodiment, and various modifications can be made within the scope of the claims of the utility model registration.

[Effect of the idea]

The present invention has the above configuration and has the following effects. (a) The fork feeding structure of the fork device is as follows:
Since it is a double payout type using a pinion gear and a rack gear, a sufficient payout amount can be obtained without making the width of the stack device very wide. Therefore, the width of the fork device can be made compact, and the running path of the stack device can also be set narrow accordingly.If the area is the same, more cargo can be loaded by narrowing the running path, making the limited space more effective. It can be used for (b) Since each fork device can be raised and lowered independently, it is possible to simultaneously load and unload cargo from shelves at different heights.
Therefore, loading work efficiency is improved, and loaded cargo can be taken in and out efficiently.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, FIG. 1 is a schematic front view of one embodiment, FIG. 2 is a schematic side view, FIG. 3 is a sectional view showing the structure of the fork device, and FIGS. 4 a and b.
FIG. 2 is a schematic side view showing the movement of the fork device. A... Three-dimensional storage device, 1... Monorail stacker, 18, 18a... Fork device, 2... Storage section, 20... Container.

Claims (1)

[Scope of Claim for Utility Model Registration] A device for loading and unloading luggage into and out of a storage section 2 in which luggage is loaded and stored in multiple stages, and this device includes: a guide rail 11 installed in the storage section 2;
12; and a stack device that runs along the guide rails 11 and 12. The stack device includes a base 14; A plurality of fork devices 1
8, 18a; The fork device 18, 18a includes: a lifting platform 180; an interlocking shaft 190 provided on the lifting platform 180;
Two types of pinion gears 191, 191a, 193, 19 with different numbers of teeth are driven by 190a.
3a; Among these pinion gears, a rack gear 184 that meshes with the small tooth pinion gears 193, 193a.
a sliding frame 184, 184a, which has a sliding frame 184, 184h, and extends along the guide member toward one or both sides of the guide rails 11, 12; and forks 188, 188a which are movably provided on the slide frames 184, 184a; A three-dimensional storage device that is extended to the tip.