JPH0249207Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to storage equipment consisting of a combination of a rack and a conveyance device that can transfer loads between the rack and the load receiving section of the rack. be.

(Prior Art and its Problems) Conventionally, the conveyance device used in this type of storage facility has generally been of the stacker crane type, which runs in the loading and unloading work passage in front of the rack. . In other words, the conventional stacker crane type transport device was large and heavy and equipped with a support higher than the height of the rack, which guided the lifting and lowering of the elevating carriage equipped with load transfer means such as running forks. However, this conveyance device itself had the drawback of being extremely expensive and requiring high operating costs. In addition, such a stacker crane type transport device occupies a large space along the entire length of the travel route from the floor to near the ceiling, and as mentioned above, the operating cost is high. Moreover, since it is heavy and unsuitable for high-speed operation, it is used as a special loading/unloading device that is used only in the loading/unloading work passage in front of the rack. It was also impossible to use it as a cargo transport means between a warehouse area including the loading/unloading work passage in front of the rack and another cargo handling work place separated from this warehouse area.

On the other hand, as in the multi-story warehouse described in Japanese Patent Application Laid-Open No. 53-27971, a cargo delivery means is provided on a cart that can run on the floor of the loading/unloading work passage adjacent to the rack, and The truck itself, which has entered the truck, is raised and lowered by engagement between the drive gear provided on the truck and a rail equivalent to a rack gear provided on the rack side, and the truck is raised and lowered between the load receiving part of the rack at an arbitrary height and the truck. There is also known a storage facility configured to transfer cargo using a cargo transfer means on the trolley.

In such a trolley-lifting storage facility, the transport device itself is small and lightweight, and the trolley can also be used as a means of transport between the warehouse area and a cargo handling area remote from the warehouse area. Although it is possible to solve problems in storage equipment using a stacker crane, it requires a special means for lifting and lowering the cart, and since the cart itself must be driven up and down, the lifting load is large and a drive with a large capacity is required. There are problems that require solutions. Furthermore, if the rack is even slightly tilted or the construction accuracy is low, there is also the drawback that smooth and safe lifting and lowering cannot be performed.

In order to solve the above-mentioned problems, it is sufficient to support the cart above the loading/unloading work passage so that it can run along the passage, and to suspend the cargo delivery means from the cart so that it can be raised and lowered. However, since the load transfer means that is suspended in the loading/unloading work passage using wires or the like can swing back and forth and left and right, it is possible to prevent the load transfer means from swinging and to safely transfer the load between it and the load receiving section on the rack side. In addition, even when the cargo transfer means is raised directly below the cart and the cart is run, the suspended cargo transfer means must be prevented from swinging, and the cargo on the cargo transfer means must be prevented from swinging. It must be possible to transport it safely.

(Means for Solving the Problems) In order to solve the above-mentioned conventional problems, the present invention consists of a combination of a rack and a conveying device.
The conveyance device includes a traveling moving body that moves while being guided by a guide rail constructed above the loading/unloading work passage in front of the rack, and a hoist from the traveling moving body to the working passage. The elevating movable body is provided with an elevating movable body that is suspended so as to be able to be lowered, and a load transfer means that is provided on the elevating movable body and that transfers a load between the load receiving part of the rack, and the elevating movable body has a lowering mechanism. At times, a lifted/lowered guided part is provided on a side adjacent to the rack, and when the lifted/lowered moving body moves up and down in the work passage, the lifted/lowered guided part cooperates with the lifted/lowered guided part on the rack side. The traveling movable body is further provided with an elevating guide means for regulating the elevating path of the movable body, and when the elevating movable body is raised to the upper limit, the movable body engages with the guided portion for elevating and lowers the elevating movable body. The present invention proposes a storage facility comprising a means for positioning.

(Example) An example of the present invention will be described below based on the attached illustrative drawings.

In FIGS. 1 and 2, 1 is a rack installed on both the left and right sides of the loading and unloading work passages 2 and 3, 4 is a main guide rail, and 5a and 5b are racks installed via route switching devices 6a and 6b. The sub-guide rail is branched from the main guide rail 4, and is constructed above the loading/unloading work passages 2, 3 along the passages 2, 3. Reference numeral 7 denotes a conveying device that is guided by the main guide rail 4 and sub-guide rails 5a and 5b and moves by itself. This conveyance device 7 includes a traveling movable body 8 movably suspended from the guide rails 4, 5a, and 5b, and an elevating movable body 10 movably suspended from the traveling movable body 8 via a hoist 9. It is equipped with

As shown in FIGS. 3 and 4, the traveling moving body 8 has a driving cart 12 attached to the upper part of one end of the frame 11 in the front-rear direction so as to be relatively rotatable around a vertical axis 13, and other parts of the frame 11. A floating cart 14 is attached to the upper end so as to be relatively rotatable around a vertical shaft 15, and the driving cart 12 has grooved drive wheels that fit into the upper edges of the guide rails 4, 5a, 5b. 16. A motor 18 with a brake that drives the drive wheel 16 via a deceleration transmission means 17; a pair of front and rear guide rollers 19 for steadying the guide rails that sandwich the lower edges of the guide rails 4, 5a, and 5b from both left and right sides; Guide rails 4, 5
Consisting of a pair of front and rear backup rollers 20 that contact the lower edges of the guide rails 4, 5a and 5b from below, and a current collector 22 that slides on the power supply rail means 21 installed on one side of the guide rails 4, 5a and 5b. The floating cart 14 has guide rails 4 and 5.
Idling wheel 2 with a groove that fits on the upper edge of a and 5b
3. A pair of front and rear anti-sway guide rollers 24 sandwiching the lower edges of the guide rails 4, 5a, 5b from both left and right sides, and the guide rails 4, 5a, 5
It is composed of a pair of front and rear back up rollers 25 that abut the lower edge of the roller b from below.

The elevating and lowering moving body 10 is provided with a running fork 27 that is movable in both left and right directions on the upper side of the lower side of a frame 26 having a rectangular side shape.
A pulley 28 with which a hanging wire 9a of a hoist 9 mounted on the frame 11 of the traveling movable body 8 engages is pivotally supported on the upper side of the frame 26. Further, at each of the four corners of the left and right sides of the frame 26, there are guide rollers 29 for preventing back-and-forth vibration supported by horizontal horizontal shafts.
and a guide roller 30 for a left-right steady rest supported by a horizontal longitudinal axis.
1 are provided respectively.

The frame 11 of the traveling movable body 8 has a guide portion 31 provided on the vertical movable body 10 when the vertical movable body 10 is lifted up to the upper limit position by the hoist 9. A guide rail 32 for preventing the steadying of an elevating moving body into which guide rollers 29 and 30 in four left and right guided portions 31 are fitted, and a stopper 3 for regulating the upper limit of elevation.
3 is provided. The lower end opening of the guide rail 32 for steadying the elevating and lowering moving body is widened into a truss shape so that the guide rollers 29, 30 can be easily fitted into the guided portion 31.

It should be noted that a motor with a brake 34 that drives the hoist 9 that suspends the elevating movable body 10, a motor with a brake 18 of the drive cart 12, and a motor for driving the running fork 27 provided on the elevating movable body 10 (Fig. (not shown) is the power feeding rail means 21 via the current collecting means 22.
It is powered by electric power supplied from

As shown in FIGS. 5 and 6, on the rack 1 side, columns 36 are erected on both left and right sides of each cargo receiving section 35 on the loading and unloading work passages 2 and 3.
A lifting guide rail 37 is attached over the entire length into which guide rollers 29 and 30 of each guided portion 31 of the lifting moving body 10 that moves up and down in the loading and unloading work passages 2 and 3 are fitted. . The upper end opening of this guide rail 37 is also desirably widened into a flap shape so that each guide roller 29, 30 can easily fit into the guided portion 31. Reference numeral 38 denotes a pair of left and right load receiving members provided in each of the load receiving sections 35, and the running fork 27 on the side of the elevating and lowering movable body 10 can move up and down between the pair of left and right load receiving members 38.

To explain an example of the warehousing work method, as shown in FIG.
The conveyance device 7 is run while being hoisted by the hoist 9 to the upper limit position where it comes into contact with the hoist 9. That is, the driving wheel 16 of the driving cart 12 of the traveling moving body 8 is rotated by the motor 18,
A traveling moving body 8 is made to travel along the main guide rail 4. At this time, the guide rollers 29, 3 in the upper four guided portions 31 on the elevating movable body 10 side
0 is fitted into the guide rail 32 on the traveling movable body 8 side, and the elevating movable body 10 is in contact with the stopper 33 on the traveling movable body 8 side. There is no fear of it swaying.

The conveying device 7 that conveys the load 39 as described above,
By switching the route switching device 6b (or 6a), it enters the route of the sub-guide rail 5b (or 5a) belonging to the loading/unloading work passage 3 (or 2),
The conveying device 7 is stopped at a predetermined position corresponding to the specific cargo receiving section 35 to be warehoused among the receiving sections 35 of the rack 1 on both the left and right sides of the loading/unloading work passage 3 (or 2). Next, the hoist 9 is driven by the motor 34, and the elevating movable body 10 is lowered into the loading/unloading work passage 3 (or 2) by the wire 9a. Since the guide rollers 29 and 30 fit into the lifting guide rail 37 on the rack 1 side and descend, the rack 1
The vertical path of the vertically movable body 10 is constant, and there is no risk of it swinging from side to side.

A specific cargo receiving section 35 where the elevating movable body 10 is to be warehoused
When it descends to a height corresponding to , the hoisting and lowering of the elevating movable body 10 is stopped, and a forking operation consisting of a combination of the movement of the running fork 27 in and out of the elevating movable body 10 and the downward movement of the elevating movable body 10 is performed. , said Running Fork 2
The load 39 on the rack 7 can be transferred to the specific load receiving section 35 of the rack 1. Empty elevating moving body 10
is lifted up again to the upper limit position by the hoist 9, and the loading/unloading work passage 3 between the racks 1 is opened.
(or 2) and can be separated upward from the vehicle and integrated with the traveling vehicle 8. In this state, the conveying device 7 is made to travel again and is moved to a predetermined location via a predetermined route connected to the sub-guide rail 5b (or 5a), but this conveying device 7 is moved backward. Sub guide rail 5b
It is also possible to return to the path of the main guide rail 4 from (or 5a).

The warehousing operation can also be performed in the same manner as the warehousing operation described above.

It should be noted that the elevating and lowering guide means on the rack side and the guided portion on the elevating and lowering movable body side are not limited to the configurations shown in the embodiments. For example, it is also possible to pivotally support front, rear, left and right guide rollers for steadying on the side of the elevating movable body 10, which directly abut against the aisle-side pillars 36 of the rack 1, or to provide vertical guide rails on the elevating movable body 10 side. It is also possible to attach guide rollers for steady rest fitting to the guide rail on the rack 1 side and pivotably support them at appropriate intervals in the vertical direction. In addition, as shown in FIG. 7, a pair of left and right lifting guide rails 40 are installed only on the rack 1 located on one side of the loading/unloading work passage.
The guided portion 31 on the side of the vertically movable body 10 pivotally supports a guide roller 41 for a left-right rest that fits into the guide rail 40 on the passage side and regulates the vertical path of the vertically movable body 10. You can also do that. Of course, a guide roller for a back-and-forth steady rest that comes into contact with the bottom surface of the guide rail 40 may also be used.

(Operations and Effects of the Invention) As described above, according to the storage facility of the present invention, by hoisting the elevating movable body to the upper limit position using the hoist, the entire conveying device consisting of the elevating movable body and the traveling movable body can be Although it is possible to keep the rack in a compact state with a low height and run it along the guide rail, when loading and unloading the cargo into and out of each cargo receiving section of the rack, the elevating and lowering movable body is moved with a hoist to the traveling movable body. By lowering the elevating movable body, the elevating movable body can be made to correspond to the cargo receiving section of the rack at an arbitrary height, and the cargo can be transferred between the cargo receiving section on the rack side and the elevating movable body using the cargo transfer means of the elevating movable body. It can be done. Moreover, when the elevating movable body is moved up and down in the loading/unloading work passage in front of the rack, the elevating movable body is moved to a predetermined position relative to the rack due to the cooperative action of the elevating guide means on the rack side and the guided part on the elevating movable body side. It is possible to move up and down along the up and down path, and it is possible to safely enter and exit the warehouse without being affected by the inclination of the rack.

Further, when the elevating movable body is raised to the ascent limit position, the positioning means (guide rail 32 in the embodiment) on the traveling movable body engages with the guided portion on the elevating movable body, so that the elevating movable body is suspended. This eliminates the possibility of the vertical moving body swinging relative to the traveling moving body, and the load can be safely conveyed without the load collapsing even when the conveying device is running at high speed. Of course, the guided part used to position the elevating movable body at the ascent limit position functions as the easy-side elevating guide means when the elevating movable body is suspended in the loading/unloading work passage and goes up and down. It is something that engages and is not provided exclusively for positioning at the upper limit position. Therefore, the number of parts is small, the overall structure is simple, and it can be implemented at low cost.

For the above-mentioned reasons, the conveyance device in the storage facility of the present invention uses a rack equipped with load receiving sections in multiple stages in the vertical direction, similar to the conventional stacker crane type conveyance device, in the loading/unloading work passage in front of the rack. As shown in the example, it is used as a small, lightweight, and low-cost trolley conveyor-type conveyance device for transportation routes other than the loading and unloading work passages. You can.

Moreover, since the conveyance device is of a type in which only the elevating and lowering movable body equipped with the cargo transfer means is suspended by a hoist, it is possible to not only effectively utilize the floor space, but also to
A special elevating/lowering drive means or a high-capacity elevating/lowering driving means, which is required when raising and lowering the entire cart along a rack, is not required, and the system can be implemented at low cost. Of course, unlike when an elevating movable body is driven up and down by a gear equivalent to a rack gear on the rack side and a gear meshing therewith, the elevating movable body is not affected by the dimensional accuracy or inclination of the rack side, and the elevating movable body can always be moved smoothly and safely. It can be raised and lowered.

[Brief explanation of the drawing]

Figure 1 is a schematic plan view of the whole, Figure 2 is an elevation view of the whole, Figure 3 is a side view of the conveyance device, Figure 4 is a front view of the same, Figure 5 is elevation movement during loading and unloading operations. FIG. 6 is a cross-sectional plan view of the same, and FIG. 7 is a cross-sectional plan view showing another embodiment. 1... Rack, 2, 3... Input/output work passage, 4... Main guide rail, 5a, 5b... Sub-guide rail, 7
... Conveyance device, 8... Traveling moving body, 9... Hoist, 1
0... Lifting moving body, 12... Driving trolley, 14... Idling trolley, 16... Driving wheel, 18... Traveling drive motor, 21... Power supply rail means, 22... Current collecting means, 2
7...Running fork (cargo delivery means), 29
...Guide roller for longitudinal steady rest, 30, 41...
Guide roller for left and right steady rest, 31... Guided part, 32... Guide rail for positioning the elevating moving body at the upper limit position, 33... Stopper, 34... Hoist drive motor, 35... Load receiving part, 36... Support column, 37, 40...Guide rail (elevating guide means).

Claims (1)

[Scope of utility model registration request] It consists of a combination of a rack and a conveyance device, and the conveyance device includes a traveling moving body that moves while being guided by a guide rail constructed above the loading/unloading work passage in front of the rack, and along the passage. an elevating and lowering moving body that is suspended from the body to the working path by a hoist, and a load transfer means that is provided on the elevating and lowering moving body and transfers the load between the load receiving part of the rack. The elevating moving body is provided with a guided part for elevating and lowering on the side adjacent to the rack when descending, and the elevating moving body is provided with a guided part for elevating and lowering on the side adjacent to the rack when the elevating moving body moves up and down in the work passage. The traveling movable body is further provided with an elevating guide means for regulating the ascending and descending route of the elevating movable body in cooperation with the elevating guided portion, and furthermore, when the elevating movable body is raised to the upper limit, the elevating guided portion A storage facility comprising means for positioning the elevating moving body by engaging with the part.