JP3596652B2 - Article storage facility - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention is directed to a plurality of moving shelf traveling rails arranged in the width direction of a moving shelf to support the moving shelf movably in the front-rear width direction, and moving a moving body for article transfer in the width direction of the moving shelf. The present invention relates to an article storage facility installed on a road surface in a state in which a movable body traveling rail that freely supports crosses each other in a plan view.
[0002]
[Prior art]
The article storage facility can move the moving shelf as needed, and move the moving object along any side of the moving shelf in the front-rear width direction. Therefore, it is not necessary to fixedly provide the traveling path of the moving body, so that articles can be efficiently stored even in a narrow installation space.
In such an article storage facility, conventionally, moving shelf traveling rails are provided in a continuous state, and moving body traveling rails are provided in a state of being separated at intersections intersecting with the moving shelf traveling rails. .
According to such a configuration, the moving shelves having a large weight in which articles are stored can be supported by a series of moving shelves running rails, and can be run with less noise. In order to be able to carry out the retrieval quickly, the moving object for article transfer requiring high-speed traveling must be supported and traveled by the divided moving object traveling rail, It is difficult to sufficiently achieve high-speed traveling of the moving body.
[0003]
[Problems to be solved by the invention]
In view of the above points, as shown in FIG. 9 , the moving body traveling rails 01 are provided in a continuous state along the width direction of the moving shelf 02, and the driving wheels 03 provided on the moving trolley 06 of the moving shelf 02 are provided. It is conceivable to provide a plurality of movable shelf traveling rails 05 along which the idler wheels 04 travel along the front-rear width direction of the movable shelf 02 in a state where the plurality of movable shelf traveling rails 05 are separated at intersections intersecting with the moving body traveling rails 01. However, on the movable shelf 02, the drive wheels 03 are arranged side by side in the width direction of the movable shelf 02 at one place in the front-rear width direction so that all of the plurality of drive wheels 03 rotate around the coaxial center 0X. The idler wheels 04 are arranged in two rows in front and rear such that some of them rotate around the coaxial core 0X with the drive wheels 03 and others rotate around the coaxial core.
[0004]
According to the above-described comparative technique, since the moving body traveling rails 01 are provided in a state of being continuously connected along the width direction of the moving shelf 02, the moving body is caused to travel at high speed with little noise and vibration, and is stored in the warehouse. When the moving shelf 02 passes through the intersection of the moving shelf running rail 05 and the moving body running rail 01, all of the plurality of drive wheels 03 are moved to the moving shelf running rail. 05 at almost the same time, the driving wheels 03 and idle wheels 04 sink at the divided portions, and a sufficient running force cannot be obtained. There is a risk of getting stuck or generating a loud noise or rocking, which is not practical. SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and allows a moving shelf to move at a high speed while moving a moving body for transferring articles at an intersection between the moving shelf running rail and the moving body running rail. It is an object of the present invention to make it possible to reliably pass through the vehicle and to suppress generation of noise and vibration when passing through the intersection.
[0005]
[Means for Solving the Problems]
The article storage facility according to claim 1 is
The moving body traveling rail is provided in a state of being continuously connected along the width direction of the moving shelf, and the moving shelf traveling rail is divided at an intersection where the moving body traveling rail intersects with the moving shelf, and the moving shelf running rail is Since it is provided along, the moving body can be run at a high speed while reducing noise and vibration accompanying the running, so that the efficiency of entry and exit work can be improved.
Further, when a part of the plurality of drive wheels traveling on the movable shelf traveling rail is located at the intersection, the remaining drive wheels located in the front-rear width direction of the movable shelf from the intersection are located on the movable shelf traveling rail. Therefore, even if the moving shelf traveling rail is divided, it is possible to avoid a risk that the moving shelf may be stuck on the spot.
Therefore, while the moving body for article transfer can be run at high speed, the moving shelf can surely pass through the intersection of the moving shelf running rail and the moving body running rail, so that entering and leaving work can be performed. It can be performed more efficiently.
[0006]
The article storage facility according to claim 1 is
The weight of the moving shelf is divided into a plurality of driving wheels in a plurality of locations in the front-rear width direction of the moving shelf, and the driving wheels are located at positions separated from the driving wheels in the lateral width direction of the moving shelf in correspondence with each of the driving wheels. The number of driving wheels is reduced compared to a case where the weight of the moving shelf is supported only by the plurality of driving wheels, so that the moving shelf is moved while simplifying the moving shelf structure. It is easy to stabilize the vertical posture along the width direction of the shelf.
[0007]
The article storage facility according to claim 1 is
All of the driving wheels and the idler wheels correspondingly provided in the width direction of the movable shelf are not located at the intersection at the same time, and when one is located at the intersection, it is located away from the intersection. Since the other is traveling on the moving shelf traveling rail, it is easy to stabilize the vertical position along the front and rear width direction of the moving shelf when passing through the intersection, and it is possible to suppress the generation of noise and vibration and store it on the moving shelf. The posture of the article is hardly disturbed.
[0008]
The article storage facility according to claim 2 is
Since the drive wheels distributed at a plurality of positions in the front-rear width direction of the moving shelf are arranged at different positions in the width direction of the moving shelf, the driving force is dispersed and travels in the width direction of the moving shelf. It is possible that the movable shelf travels in an oblique posture in which both end positions in the lateral direction are shifted back and forth in the traveling direction, as compared with a case where the movable shelf is arranged at the same position in the lateral width direction. In addition, it is easy to smoothly move the moving shelf by setting the rolling direction of the drive wheels along the moving shelf traveling rail.
In particular, when a plurality of moving shelf traveling rails are installed so as to simultaneously support the plurality of moving shelves so as to be movable in the front-rear width direction, it is easy to move the moving shelves so as to approach each other in parallel. It is easy to secure a passage width necessary for moving the body along the moving body traveling rail.
[0009]
The article storage facility according to claim 3 ,
In each of the plurality of locations distributed in the front-rear width direction of the movable shelf, the driving force can be dispersed and run in the lateral width direction of the movable shelf, and a single drive wheel is disposed in each of the plurality of locations. In comparison with the case, the movable shelf is less likely to travel in an oblique posture in which both end positions in the width direction are shifted back and forth in the traveling direction, and the rolling direction of the drive wheels is set along the movable shelf traveling rail, and the movable shelf is moved. It is easy to run smoothly.
In particular, when the plurality of drive wheels at the plurality of locations are arranged so as to be located at different positions in the width direction of the movable shelf as in the article storage facility according to claim 5, all of the drive wheels are provided. Since the driving force can be efficiently dispersed in the width direction of the moving shelf and run, the driving force can be efficiently dispersed in the width direction of the moving shelf. Is less likely to travel in an oblique position that is shifted back and forth in the traveling direction.
[0010]
The article storage facility according to claim 4 is
Driving wheels located at each of a plurality of locations distributed in the front-rear width direction of the moving shelf are disposed in the middle of the moving shelf in the width direction, and idler wheels are provided on both sides of the moving shelf in the width direction of the moving shelf. Is arranged, the weight of the moving shelf is distributed and supported by a plurality of driving wheels and a plurality of idler wheels, thereby simplifying the moving shelf structure and stabilizing the vertical posture along the width direction of the moving shelf. The driving force for traveling is applied near the center of gravity of the moving shelf as compared to the case where the driving wheels located at each of the plurality of positions are biased toward the end in the lateral width direction of the moving shelf. Therefore, there is little possibility that the movable shelf travels in an oblique posture in which both end positions in the width direction are shifted back and forth in the traveling direction.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
[First Embodiment]
FIG. 1 shows an article storage facility according to the present invention installed in an automatic warehouse, in which four moving shelves A provided with a plurality of article storage sections 1a in the vertical and horizontal directions and in the front and rear directions of movement, and a plurality of article storage sections. An article transfer device provided with a fork device D1 for transferring a container C placed on a pallet as an example of an article between two fixed shelves B having upper, lower, left and right 1a, and a moving shelf A or a fixed shelf B. And a stacker crane D so as to travel along a desired crane travel path E formed between the movable shelf A and the fixed shelf B or between the movable shelves A. And a moving crane F.
[0012]
The two fixed shelves B are fixed on both sides of the four moving shelves A with the article loading / unloading side facing the moving shelf A, and move to the road surface G side between the two fixed shelves B. Eight moving shelf traveling rails 2 arranged in the width direction of the shelf A, and five crane traveling rails 3 as moving body traveling rails for supporting the stacker crane D movably in the width direction of the moving shelf A, The four moving shelves A are installed so as to intersect each other at right angles in plan view. It is movably supported separately.
[0013]
The crane travel path E is formed between the movable shelf A and the fixed shelf B or between the movable shelves A by moving the movable shelf A, and the crane traveling rail 3 is Are mounted one by one in a state of being continuously connected along the lateral width direction of the moving shelf A so as to be located corresponding to each of the crane traveling paths E, and each of the moving shelf traveling rails 2 intersects with the crane traveling rail 3. It is installed along the horizontal width direction of the moving shelf A at a distance from the crane traveling rail 3 in a state of being separated at the intersection where the moving shelf A is separated.
[0014]
The two moving shelf running rails 2b at both ends in the width direction of the moving shelf A among the moving shelf running rails 2 are provided with running flanges provided at both ends in the width direction of the moving shelf A as shown in FIG. The upper surface 2c is fixed to be higher than the upper surface 3a of the crane traveling rail 3 so that the idler wheel 4 can pass over the crane traveling rail 3 and is fixed. As shown in FIG. 6, the upper surface 2c of the crane travel rail 3 is fixed with being positioned at substantially the same height as the upper surface 3a of the crane traveling rail 3.
[0015]
As shown in FIG. 2 to FIG. 4, each of the movable shelves A has two storage shelves 1 adjoining back to back on a movable carriage A1 traveling along eight movable shelf traveling rails 2 in the traveling direction. , And each of the fixed shelves B is configured by attaching a fixing leg B1 to the same storage shelf 1 as that fixed to the movable shelf A.
[0016]
Each of the storage shelves 1 is configured to support the article storage section 1a in a plurality of upper and lower stages by a plurality of front supports 1b and rear supports 1c arranged in the horizontal width direction, and connects the rear supports 1c left and right. A horizontal bar 1d, a vertical bar 1e connecting the front column 1b and the rear column 1c back and forth, an inclined frame 1f connecting the front column 1b and the rear column 1c in a truss shape, and a rear column 1c. A brace 1h connected diagonally is provided, and a support arm 1g for placing and supporting the left and right sides of the pallet on which the container C is placed is fixed in a cantilever manner over the front support 1b and the rear support 1c. The article storage portions 1a are provided in a plurality of upper and lower stages between the adjacent front columns 1b.
[0017]
As shown in FIG. 4, the movable trolley A1 includes eight vertical frames 7 long in the running direction and two front horizontal frames 8a long in the left and right width direction, which are arranged at intervals in the left and right width direction. And the intermediate horizontal frame 8b are connected to each other to form a girder-shaped traveling machine frame 8, and the idle shelves travel on the movable shelf traveling rail 2 at two positions in the traveling direction at predetermined intervals a of each vertical frame 7. The two storage shelves 1 are provided with wheels 4, 5 and drive wheels 6, and each of the two storage shelves 1 has a front column 1 b fixed to the front and rear ends of each vertical frame 7, and a rear column near the center of each vertical frame 7. 1c is fixed, and the rear pillars 1c adjacent to each other in the front-rear direction are connected and fixed with a common horizontal rail 1d interposed therebetween.
[0018]
In each of the six intermediate vertical frames 7a and 7b positioned at the middle of the moving shelf A in the width direction of the vertical frame 7, one flangeless idle wheel 5 and one flangeless drive wheel 6 are provided. Make three adjacent vertical intermediate frames 7a, 7b into one set, and each idler wheel 5 rotates around the coaxial core X1, Y1 for each intermediate vertical frame 7a, 7b of each set; The driving wheels 6 are provided before and after so as to rotate around the coaxial cores X2 and Y2, and the driving wheels 6 of each set are connected to a driving shaft 6a driven by an electric motor M.
[0019]
Then, the front and rear arrangement of the idler wheels 5 and the respective drive wheels 6 provided on the three left intermediate vertical frames 7a (hereinafter referred to as a left intermediate vertical frame group 9a) shown in FIG. Each of the three intermediate vertical frames 7b (hereinafter, referred to as a right intermediate vertical frame group 9b) is arranged on the movable rack traveling rail 2a with the front and rear arrangement of the idler wheels 5 and the driving wheels 6 being reversed. When three of the drive wheels 6 are located at the intersection where three of them intersect with the crane travel rail 3, the drive wheels 6 in the front-rear width direction of the movable shelf A are so positioned that the remaining three are located away from the intersection. The drive wheels 6 are provided at two locations and are arranged so that three drive wheels 6 distributed at two locations are located at different positions in the width direction of the movable shelf A, and are provided at each location. Moving wheel A It is arranged so as to line up in the lateral direction.
[0020]
Also, two flanged idler wheels 4 are provided on each of the left and right end vertical frames 7c and 7d, and three drive wheels 6 distributed at two positions in the front-rear width direction of the movable shelf A are provided. , Are provided so as to be located only in a part of the moving shelf A in the width direction, and are disposed in the middle of the moving shelf A in the width direction. Idler wheels 4 and 5 are disposed on both sides, and idler wheels 4 and 5 of each vertical frame 7 correspond to the drive wheels 6 of the left intermediate vertical frame group 9 a and are left with respect to the drive wheels 6. Idler wheels 4 and 5 provided on the vertical frame 7 are located apart from each other in the width direction of the moving shelf A, and correspond to the drive wheels 6 of the right middle vertical frame group 9b, and the remaining The idler wheels 4 and 5 provided on the vertical frame 7 are located apart from each other in the width direction of the movable shelf A. To have.
[0021]
Furthermore, the rotation axis X1, X2 of the idle wheel 5 and the drive wheel 6 provided in the left middle vertical frame group 9a, and the rotation axis Y1 of the idle wheel 5 and the drive wheel 6 provided in the right intermediate vertical frame group 9b. , Y2 are shifted in the front-rear width direction of the movable shelf A by a distance b longer than the interval H between the ends of the movable shelf travel rail 2 at the intersection where the crane travel rail 3 intersects, and the left end shown in FIG. The rotation axes of the two idler wheels 4 provided on the end vertical frame (hereinafter, referred to as the left end vertical frame) 7c are used as the rotation axes of the idler wheels 5 and the drive wheels 6 provided on the right intermediate vertical frame group 9b. The rotating shaft cores of the two idler wheels 4 provided concentrically with the cores Y1 and Y2 and provided on a right end vertical frame (hereinafter referred to as a right end vertical frame) 7d shown in FIG. The rotation axis X1 of the idler wheel 5 and the drive wheel 6 provided in the group 9a 2 and is provided on the same core.
Accordingly, the play of the drive wheels 6 provided in the left middle vertical frame group 9a and the left end vertical frame 7c and the right middle vertical frame group 9b corresponding to those drive wheels 6 and separated in the width direction of the movable shelf A is adjusted. Combination of the rolling wheels 4 and 5, the driving wheels 6 provided in the right intermediate vertical frame group 9b, and the right end vertical frame 7d corresponding to those driving wheels 6 and separated in the width direction of the movable shelf A In each of the combinations with the idler wheels 4 and 5 of the left middle vertical frame group 9a, when one of the drive wheels 6 or the idler wheels 4 and 5 is located at the intersection where the crane travel rail 3 intersects The moving shelf A is arranged at an interval in the front-rear width direction so that the other is located away from the intersection.
[0022]
The stacker crane D is provided with a plurality of flanged traveling wheels D2 traveling on the crane traveling rail 3 and a guide column D3 for guiding the fork device D1 so as to be able to move up and down. A guide provided at the upper end of the guide column D3. The frame D4 is guided by the guide rails 1j provided on the movable shelves A or the fixed shelves B located on the left and right sides of the crane travel path E, and travels on the single crane travel rail 3 in a state where the crane travels. It is configured as follows.
[0023]
[Second embodiment]
FIG. 7 shows another embodiment of the arrangement of the driving wheels and the idler wheels in the moving shelf A. In the traveling machine frame 8 configured in the same manner as shown in the first embodiment, the eight driving wheels 6 are provided with the moving shelf A. At the same position in the width direction of the moving shelf A, four parts are distributed at two positions in the front-rear direction, and are provided so as to rotate around the same rotation axis X, Y at each position. The idler wheels 4, 5, which are spaced apart from each other in the width direction of the movable shelf A, are provided so as to rotate around the same rotation axis X, Y as the corresponding rotation axis X, Y of the driving wheel 6. .
Other configurations are the same as those of the first embodiment.
In addition, as shown by a virtual line in the figure, a single or a plurality of idler wheels 10 may be separately provided between the drive wheels 6 facing each other in the front-rear direction of the movable shelf A.
[0024]
[Third embodiment]
FIG. 8 shows another embodiment of the arrangement of the driving wheels and the idler wheels in the moving shelf A. In the traveling machine frame 8 configured in the same manner as shown in the first embodiment, eight driving wheels 6 are provided with the moving shelf A. At the same position in the width direction of the moving shelf A, four parts are distributed at two positions in the front-rear direction, and are provided so as to rotate around the same rotation axis X1, Y1 at each position. The rotation axis X2, Y2 of the idler wheels 4, 5 located in the lateral width direction of the moving shelf A corresponding to the distance between the driving wheels by the distance b longer than the interval H between the ends of the moving shelf traveling rail 2 6 is provided at a position inside the rotation shaft cores X1 and Y1.
Other configurations are the same as those of the first embodiment.
In addition, as shown by a virtual line in the figure, a single or a plurality of idler wheels 10 may be separately provided between the drive wheels 6 facing each other in the front-rear direction of the movable shelf A.
In addition, the rotation axis X2, Y2 of the idler wheels 4, 5, which are located in the width direction of the moving shelf A corresponding to the driving wheels 6, is longer than the interval H between the ends of the moving shelf traveling rail 2. It may be provided at a position outside the rotational axis X1, Y1 of the drive wheel 6 by the distance b.
[0026]
[Other embodiments]
1 . The two drive wheels may be provided separately in the front-rear width direction of the moving shelf, that is, separated in the front-rear width direction of the moving shelf.
2 . All of the movable shelf traveling rails may be provided such that the upper surface thereof is higher than the upper surface of the movable body traveling rail, and all of the traveling wheels provided on the movable shelf may be formed of flanged traveling wheels.
[Brief description of the drawings]
FIG. 1 is a schematic plan view of an article storage facility. FIG. 2 is a side view of a main part of the article storage facility. FIG. 3 is a front view of a moving shelf. FIG. 4 is a plan view of a main part of the moving shelf. Side view of main part at intersection of rail and crane travel rail [FIG. 6] Side view of main part of intersection at movable shelf travel rail and crane travel rail [FIG. 7] Main part of movable shelf showing second embodiment FIG. 8 is a plan view of a main part of a movable shelf showing a third embodiment. FIG. 9 is a schematic plan view showing a comparative example.
2 Moving shelf running rail 3 Moving body running rails 4, 5 Idling wheels 6 Drive wheel A Moving shelf D Moving body

Claims (4)

A plurality of moving shelf traveling rails arranged in the width direction of the moving shelf to movably support the moving shelf in the front-rear width direction, and a movable body for article transfer movably supported in the width direction of the moving shelf. A moving object traveling rail and an article storage facility installed on the road surface side in a state of intersecting each other in plan view,
The moving body running rail is provided in a state of being continuously connected along the width direction of the moving shelf,
The moving shelf running rail is provided along a front-rear width direction of the moving shelf in a state where the moving shelf running rail is divided at an intersection where the moving shelf running rail intersects,
A plurality of drive wheels traveling on the moving shelf traveling rail are distributed in the front-rear width direction of the moving shelf so that when a part of the driving wheels is located at the intersection, the rest is located away from the intersection. In a state, provided on the moving shelf,
The drive wheels dispersed in a plurality of locations in the front-rear width direction of the moving shelf are provided so as to be located only in a part of the moving shelf in the width direction,
In accordance with each of the drive wheels distributed at a plurality of locations in the front-rear width direction of the movable shelf, the movable shelf travels on the movable shelf travel rail while being separated from the drive wheel in the width direction of the movable shelf. Idler wheels are provided ,
The drive wheels and the idler wheels located away from the drive shelves in the width direction of the movable shelf are positioned so that when one is located at the intersection, the other is located away from the intersection, An article storage facility spaced apart in the width direction. 2. The article storage facility according to claim 1 , wherein the drive wheels dispersed at a plurality of locations in the front-rear width direction of the movable shelf are arranged at different positions in the width direction of the movable shelf . 3. 3. The article according to claim 1 , wherein the drive wheels are arranged so as to be plurally arranged in the width direction of the movable shelf at each of a plurality of locations dispersed in the front-rear width direction of the movable shelf. 4. Storage equipment. Drive wheels located at each of a plurality of locations distributed in the front-rear width direction of the moving shelf are disposed in the middle of the moving shelf in the width direction, and the driving wheels are disposed on both sides of the moving shelf in the width direction with respect to the driving wheels. The article storage facility according to any one of claims 1 to 3, wherein the idler wheel is provided.

Images