JPH06563B2 - Shelf equipment using carrier - Google Patents

Description

TECHNICAL FIELD OF THE INVENTION The present invention relates to storing loads directly or via pallets,
The present invention relates to a shelf facility that is adopted for taking out as needed.

2. Description of the Related Art Conventionally, as this kind of shelf equipment, for example, Jikho Sho 61-187
As seen in Japanese Patent Laid-Open No. 50, a structure is provided in which a frame frame is provided with wheel rails having a large number of wheels arranged in a plurality of upper and lower stages with the conveying (sliding) direction inclined. According to this conventional structure, the load loaded on the upper slope portion slides on the wheel and is received by the stopper provided on the lower end, and the sequentially loaded loads are stored on the front load. It will be. Then, the stored load is taken out from the lower inclined portion as needed, and the take-out trace is filled by sliding the load at the rear position. In this conventional example, loading and unloading of a load are performed manually, but in a large-sized shelf handling a large load, loading and unloading of the load is performed using, for example, a forklift truck.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention According to the conventional type as described above, since the movement of the load is the sliding type utilizing the free rotation of the wheel, the free rotation is not smoothly performed or there is a variation in the load. In some cases, the sliding does not occur reliably, resulting in poor reliability. Also, from the viewpoint of frictional resistance, some may not be usable depending on the material of the pallet. It is conceivable to take a sufficient inclination angle for these, but if the inclination angle is large, the sliding speed will be high and will not be constant, and the impact will increase when it is received by the stopper. Stability will be poor. In addition, the dead space of the slope is increased, resulting in inefficient storage. Furthermore, handling of a load using a forklift truck must be performed by inserting a fork into a pallet on which the load is placed, and it is particularly difficult to adjust the level when taking out the load.

An object of the present invention is to provide a rack-equipped shelf facility that can reliably move a load at a constant speed and can easily load and unload the load while keeping the transport direction horizontal.

Means for Solving the Problems In order to achieve the above object, a shelf facility using rollers according to the first aspect of the present invention includes a shelf frame provided with a conveyor device including a pair of left and right conveyors.
The transportation direction is horizontal and arranged in a plurality of upper and lower stages, and at least one conveyor of the transportation device is divided into a plurality of groups in the transportation direction, and a transmission device that is always linked to a drive device is connected and separated for each group. Each group is provided with a valve device that separates the transmission device when there is a load, and the two groups that are adjacent in the transport direction are connected to each other when there is no load in the downstream group, and The most downstream group is provided with an operating circuit that interposes the transmission device and the valve device so that the transmission device can be separated when loaded.

In the shelf facility using rollers according to the second aspect of the present invention, a conveyor device including a pair of left and right conveyors is arranged on a shelf frame in a plurality of upper and lower stages with the conveying direction being horizontal, and on the side of each conveying path. A guide device is provided so that one of the conveyors of the transfer device is divided into a plurality of groups in the transfer direction, and a transmission device that is always interlocked with a drive device is connectable and separable for each group. Provided with a valve device that separates the transmission device during loading, the two groups adjacent in the transport direction will be connected when the downstream group does not have a load, and the most downstream group will transmit when there is a load. In order to separate the device, an operating circuit is provided with the transmission device and the valve device interposed therebetween.

According to the configuration of the first aspect of the present invention, when there is no load on the transport device, at least one conveyor forming the transport device is in a driving state over the entire length of the transport path, and thus at the upstream end. The supplied load is supported between both conveyors and receives the conveying force of the conveyors, and is sequentially conveyed toward the downstream end. Then, it is stored sequentially from the downstream end toward the upstream, but at this time, in the most downstream group, the transmission separates and becomes non-driving due to the presence of cargo, and in the subsequent groups, it is performed simultaneously with the downstream group. One conveyor does not act on the stored load because it is not driven by the load. When a load-free group occurs, this group and the upstream load-bearing group are driven at the same time to convey the upstream load to the downstream side. , It can be densely stored from its downstream end to its upstream side. Further, the loading and unloading of the load to and from the transport device can be performed by positioning a fork between the pair of conveyors.

Further, according to the configuration of the second aspect of the present invention, the load supplied to the upstream end is supported between both conveyors, is subjected to the conveying force of one conveyor, is guided by the guide device, and is sequentially conveyed toward the downstream end. It

Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 to 17.

50 is a shelf frame, a plurality of left and right front columns 51, a plurality of left and right rear columns 52, a front cross member 53 that connects the front columns 51, and a rear cross member 54 that connects the rear columns 52. The front pillar 51 and the rear pillar 52 are connected to each other by front and rear members 55 and the like. At a plurality of left-right partition sections formed between the columns 51 and 52 of the shelf frame 50, a transfer device 58 including a pair of left and right roller conveyors 59 and 60 having a plurality of idle rollers is provided. Are arranged horizontally in a plurality of stages. That is, the body frame 1 of both roller conveyors 59, 60
Is a pair of left and right side frames 1A and 1B and these side frames 1A and 1B.
It is composed of a base frame 1C connecting the lower parts of B. This base frame 1C is a plurality in the transport direction 47,
Insert the bolts 61A and 61B that are passed through from below to the side frames 1A and 1B.
Both side frames 1 by screwing and tightening the plate nuts 63A, 63B fitted in the dovetail grooves 62A, 62B formed on the lower surface of B.
It is connected between A and 1B. Both side frames 1 located outside
Dovetail grooves 64A and 64B are formed at two upper and lower locations (a plurality of locations) on the outer side surfaces of A and 1B.
Plate nuts 65A and 65B are fitted in B. And pillar 5
Bolts 66A and 66B that are passed through 1, 52 from the side
Body frame 1 by screwing 3A and 63B together and tightening
Is fixed to the shelf frame 50. L-shaped guide portions 2A and 2B are formed on the inner surfaces of the side frames 1A and 1B that face each other, and the dovetail groove portion 4 that allows the nut bodies 3A and 3B to slide is further provided on the upper portion.
A and 4B are formed. Also one roller conveyor
On the outer side frame 1A at 59, on the inner surface side of the lower part,
A pair of upper and lower guide rails 7 and 8 are arranged in the frame length direction via mounting portions 5 and 6, respectively. Side frame 1
Resin support frames 9A and 9B are provided on the inner surfaces of A and 1B so that their lower ends are fitted to each other, and the positions of the support frames 9A and 9B can be changed (slipped) in the frame length direction. Bolts 10 inserted through the mounting holes 11A and 11B formed in the
By fixing A and 10B to the nut bodies 3A and 3B, the nut bodies 3A and 10B are fixed at the changed position. One roller conveyor 59
The outer support frame 9A has a case shape, and is provided continuously from the inner surface of the lower half of the base plate portion 12 and the base plate portion 12 having the lower end and the mounting hole 11A fitted to the guide portion 2A. Formed by a pair of front and rear cover plate parts 13 and a connecting plate part 14 provided between the lower ends of these cover plate parts 13,
A pair of upper and lower through holes 15a and 15b are formed above the mounting hole 11A of the board portion 12. The same through hole 15 is also formed in the inner supporting frame 9A of the other roller conveyor 60.
a and 15b are formed. The remaining support frames 9B of the two roller conveyors 59, 60 are rectangular plate-like, and have locking grooves 16a, 16b with upper and lower end surfaces in the height direction and inner side surfaces open on both sides across a pair of mounting holes 11B. Are formed. Here, the distance L from the inside of the locking grooves 16a, 16b to the mounting hole 11B
₁ and L ₂ are equal to the distances L ₁ and L ₂ from the mounting hole 11A to the through holes 15a and 15b in the one support frame 9A. Between the support frames 9A and 9B, free rollers 28 and 28a made of resin are rotatably provided via a roller shaft 27. That is, one end of the roller shaft 27 that is inserted so as to allow relative free rotation is provided with a through hole.
15a, 15b, and the other end is the locking groove 16
Roller shaft by dropping it into either a or 16b from above
27 can be attached, and the idler rollers 28, 28a can freely rotate around the roller axis 29. One roller conveyor
The support shaft 9 along the roller shaft center 29 is attached to the outer support frame 9A at 59 so as to be vertically swingable. Ie board part
A bearing hole 19 is formed at the lower end of the support shaft 12, and the inner end of the support shaft 18 is fitted into the bearing hole 19 so as to be vertically swingable. Then, an L-shaped plate portion 23 made of resin is inserted and mounted between the free ends of the cover plate portion 13, and the outer end of the support shaft 18 is placed in a vertical recess 24 formed in the vertical plate of the L-shaped plate portion 23. Mating and supporting shaft
The vertical swing range of 18 is restricted. A sprocket 20, which is an example of a passive wheel, is rotatably attached to the support shaft 18, and a transmission roller 21 is externally fitted and fixed to a boss portion of the sprocket 20 so that both 20 and 21 can rotate integrally. . The transmission roller 21 is made of urethane rubber, and the outer periphery of the transmission roller 21 can be brought into contact with and separated from the lower portion of the outer periphery of the idler roller 28. An air cylinder device 17 for contacting and separating is interposed between a cylinder rubber receiver 22 attached to the outer end of the support shaft 18 and a lateral plate of the L-shaped plate portion 23. The above 17 to 24 form a unitary transmission device 25, and this transmission device 25 forms a set with the idler roller 28 via the support frames 9A, 9B, etc. To be done. Each sprocket
A chain 30 that is a common driving body that interlocks with the 20 is stretched between a driving sprocket 31 and a driven sprocket 32 via a guide sprocket 33, and the driving sprocket 31 is linked to a motor 34. . 30 ~ 34 mentioned above
Thus, a drive device 35 that is always linked to each transmission device 25 is configured.

By disposing the idler roller 28 paired with the transmission device 25 as described above and the free idler roller 28a not paired with each other at the set pitch P on the main body frame 1, both roller conveyors 59, 60 are provided. Thus, the transport path 38 is formed. 39 is a load, which is handled via the pallet 37. The transport route 38
A stopper 56 fixed to the shelf frame 50 side is provided at the terminal end of the.

The idler roller 28 paired with the transmission 25 as described above.
For example, as shown in FIG. 5 and FIG. 8, there are a plurality of groups, each of which has a predetermined arrangement of six, and in the embodiment, there are eight groups A, B, C, D, E, F, G and H. The transmissions 25 are arranged so that the transmission 25 can be connected and separated for each group. That is, a supply / discharge hose 40 in which the air cylinder devices 17 are connected in series is provided for each group, and these supply / discharge hoses are provided.
The downstream end of 40 is connected to the air supply device 42 via the valve device 41.
It is configured such that it can be selectively connected / disconnected to a common air supply hose 43 from. The valve device 41 is a mechanical valve, and the upward actuating rod 41a of the valve device 41 projects above the conveying surface by the upper hand of the idler roller 28 at the most downstream side in each of the groups A to H. And the valve device 41 is operated without the pallet 37.
When the protrusion 41a is projected upward, the supply / discharge hose 40 is connected to the supply hose 43, and when the pallet 37 is present and is pushed downward, the supply / discharge hose 40 is separated from the supply hose 43. To do. In the groups C to H other than the two groups A and B on the downstream side, the upstream end of each supply / discharge hose 40 is connected to the downstream end of the supply / discharge hose 40 in the next lower group B to G via the connecting hose 44. Connected. In the two groups A and B on the downstream side, each supply / discharge hose
The upstream ends of 40 are connected by a connecting hose 45, and a time delay valve 46 is interposed in the connecting hose 45.
The above-mentioned hoses 40, 43, 44, 45, etc. constitute an operating circuit 48 in which the transmission device 25 and the valve device 41 are interposed, and this operating circuit 48 is the downstream of two groups adjacent in the transport direction 47. When the load 39 is absent from the side group, both transmission devices 25 are connected, and the most downstream group A separates the transmission device 25 when there is a load.

Outer side frames 1A, 1B of both roller conveyors 59, 60
Guide devices 70A, 70 located on the side of the transport path 38.
B is a removable frame 71 on top of the side frames 1A and 1B.
A, 71B and a large number of guide rollers 72A, 72B arranged on the upper surfaces of the frames 71A, 71B. The guide devices 70A and 70B may be formed by guide plates.

Next, the carrying work in the above embodiment will be described.

3 and 4, the valve device 41 is connected to connect the air supply hose 43 to the air supply / exhaust hose 40, the support shaft 18 is swung upward by the extension of the air cylinder device 17, and the transmission roller 21 is moved. Are pressed against the corresponding idler rollers 28 from below. At this time, the chain 30 is constantly driven by the motor 34, so that the sprocket 20 engaged with the chain 30 rotates around the support shaft 18. Further, the transmission roller 21 is in contact with the lower portion of the outer circumference of the idler roller 28, and thus the idler roller 28 group is forcibly rotated. This allows the pallets on the transport path 38 to
37 is supported between the idle rollers 28 and 28a of both roller conveyors 59 and 60, receives the conveying force by the forced rotation of the idle rollers 28 on one side, and has guide rollers on both sides.
It is possible to carry on this carrying path 38 while being guided by 72A and 72B.

The transfer device 58 including the pair of roller conveyors 59 and 60 basically transfers the pallet (load) 37 as described above, but in reality, the valve device 41 detects and does not detect the pallet 37. The transport control is performed based on this. That is, when the transport path 38 is empty, the operating rod 41a of each valve device 41 is projecting without detection, so that the air supply hose
Air from 43 is supplied to all supply / discharge hoses 40 via the valve device 41, and each air cylinder device 17 is extended to forcibly rotate all the idler rollers 28 of all the groups A to H. In this state, when the pallet 37 is unloaded on the group H at the upstream end by the forklift truck 68, the valve device of the group H
41, the operating rod 41a is pushed down to perform a dividing operation,
Since the valve device 41 of the group G located one downstream is not detected as described above, a part of the air supplied to this group G is supplied to the supply / discharge hose 40 via the connecting hose 44 and the group H of the group H is supplied. Since the air cylinder device 17 is connected and moved, the idle rollers 28 of the groups H and G are forcibly rotated to convey the pallets 37 from the group H to the group G. When the pallet 37 enters the group G, the valve device 41 of this group G is detected, but since the group F is not detected as described above, the idle rollers 28 of the group G are similarly forcedly rotated. , The pallet 37 is transported from the group G to the group F. In this way, the pallets 37 sequentially transported to the downstream side come into contact with the stopper 56 and stop, and are stored in the group A. This pallet 37
The valve device 41 of the group A detects and disconnects the air, so that the supply / discharge hose 40 is opened at the same time as the supply / discharge hose 40 of the group A is stopped and the transmission device 25 of the group A is separated. Then, the forced rotation of all idle rollers 28 is stopped. The second pallet 37 is also transported in the same way,
The pallet 37 of the group A is brought into contact with the pallet 37 to be stored in the group B. At this time, although it is detected in group B,
Since Group A is also detecting, this Group B
Will also be separated. With this work, for example, as shown in FIG.
Is stored and all are separated. In this state, when the pallet 37 of group A is taken out by the forklift truck 68 as shown in FIG. 7, the valve device 41 of group A 41
Is not detected, groups A and B are connected, and as a result, as shown in FIGS. 5 and 8, the pallet of group B is displayed.
Transport 37 to Group A. Then, since the valve device 41 of the group B is not detected, the groups B and C are connected to each other, and as a result, as shown in FIG.
Are transported to group B. By repeating such an operation, the pallet 37 can be sequentially fed as shown in FIGS.

Group A pallets 37 by forklift truck 68
The fork can be removed by inserting the fork into the pallet 37, but this can be done easily by inserting the fork below the pallet 37 between the roller conveyors 59 and 60. Control is also easy. Group A palette 37
A forking mistake may occur when taking out. In this case, the valve device 41 of the group A is not detected, the pallet 37 of the group B is sent to the group A, and the forked pallet 37 cannot be returned to the group A again. However, according to the above embodiment, the time delay valve
Since the connecting hose 45 is blocked by 46 for a certain period of time, the group B can be divided within this set certain period of time, and therefore the pallet 37 is returned to the group A when a forking mistake is noticed. be able to.

For example, when the valve device 41 of the group F is not detected as shown in FIG. 12 and the pallet 37 of the group A is further removed as shown in FIG.
As shown in the figure, sequential feeding is performed at two locations in the direction of the transport path 38. In the same manner, sequential feeding of three or more places is also performed.

In the above embodiment, the roller conveyor 5 is used as the conveyor.
Although shown as 9,60, this may be a belt conveyor, chain conveyor, roller chain conveyor, or the like. Although the mechanical valve type having the actuating rod 41a is shown as the valve device 41, this may be an electromagnetic valve or the like to which a photoelectric switch for detecting the presence of a load is connected.

As shown in the above embodiment, the roller conveyors 59 and 60 are divided into the right and left, and only one of them is a drive type, so that the transmission device 25 and the drive device 35 can be made simple and inexpensive. , The guide devices 70A and 70B can be used for transportation without meandering. As described above, a great effect can be expected by driving only one side, but in the first invention, both roller conveyors 59, 60 may be driven.
Further, all idle rollers 28 of one roller conveyor 59 are of a drive type, but as shown in FIG. 18, every other idle rollers 28 are driven idle rollers 28, and the rest are the same as the other roller conveyor 60. Alternatively, a non-driving idler roller 28a may be used. In this case, the drive idler rollers 28 are partially provided in each of the groups A to H, and may be provided every two groups. By thus forming a part of the drive type, the transmission device 25 can be simplified, and the entire structure can be made inexpensive.

According to the first aspect of the present invention having the above-described structure, when there is no load on the transport device, at least one conveyor forming the transport device is in a driving state over the entire length of the transport path, and therefore upstream. The load supplied to the end can be carried to the downstream end in sequence by being supported between both conveyors and receiving the carrying force of one of the conveyors. Then, the load is sequentially stored from the downstream end toward the upstream.At this time, in the most downstream group, the transmission separates and becomes non-driving due to the presence of the load, and in the subsequent groups,
Since one of the conveyors does not act on the stored load because it is not driven by the simultaneous presence of the downstream group, it is possible to prevent damage to the stored load and the conveyor. And when there is a group with no load,
This group and the load group on the upstream side can be driven simultaneously to transport the load on the upstream side to the downstream side, so that the load can be forwarded and stored densely from the downstream side to the upstream side. You can In this way, only the required load can be forcibly moved within the shelf, and reliable movement (progressive feed) can always be performed regardless of the variation of the load and the material of the pallet. Moreover, since the moving speed can be kept constant, stable transportation can be performed.
Further, it can be arranged horizontally, the conventional dead space of inclination can be eliminated, and a shelf facility with good storage efficiency can be provided. Further, the loading and unloading of the load to and from the transport device can be performed easily between the pair of conveyors, for example, by positioning a fork below the load, for example, for leveling.
Further, various devices such as a power supply device and hoses can be arranged by utilizing between the pair of conveyors, and can be suitably used in various fields such as shelf equipment capable of aging.

And according to this 2nd invention, the load supplied to the upstream end is
It is supported between both conveyors, receives the conveying force of one conveyor, is guided by the guide device, and can be conveyed sequentially toward the downstream end. In this way, by dividing the conveyor into left and right, and making only one side a drive type, it is possible to simplify and reduce the cost of the transmission device and drive device.Also, although it is one side drive, the load does not meander by the guide device. Can be transported.

[Brief description of drawings]

FIGS. 1 to 17 show an embodiment of the present invention, FIG. 1 is a side view, FIG. 2 is a front view, FIG. 3 is a partially cutaway front view of essential parts, and FIG. 4 is the same. Partial cutaway side view, FIG. 5 is a schematic side view of a main part, and FIGS. 6 to 17 are schematic side views showing a use state,
FIG. 18 is a schematic side view of a main part showing another embodiment. 1 ... Main body frame, 7, 8 ... Guide rail, 17 ... Cylinder device, 18 ... Spindle, 20 ... Sprocket, 21 ... Transmission roller, 25 ... Transmission device, 28 ... Idler roller, 30 ... Chain, 34 ...
Motor, 35 ... Drive device, 37 ... Pallet, 38 ... Conveyance path,
39 ... Object to be transported, 41 ... Valve device, 41a ... Operating rod, 42 ... Air supply device, 43 ... Air supply hose, 44, 45 ... Communication hose, 47 ... Transfer direction, 48 ... Operation circuit, 50 ... Shelf frame , 51 ... Front support, 52 ... Rear support, 56 ... Stopper, 58 ... Conveying device, 59, 60 ... Roller conveyor, 70A, 70B ... Guide device, AH group.

Claims (2)

[Claims] 1. A transfer device comprising a pair of left and right conveyors is arranged on a shelf frame in a plurality of upper and lower stages with the transfer direction being horizontal, and at least one of the conveyors is divided into a plurality of groups in the transfer direction. In addition to dividing, a transmission device that is always interlocked with the drive device can be connected and separated for each group, and a valve device that separates the transmission device when loading is provided for each group. ,
Both gears are connected when there is no load in the downstream group, and the downstream group has an operating circuit that interposes these gears and valve devices so that the gears can separate when there is a load. A shelf facility that uses a carrier device. 2. A transfer device comprising a pair of left and right conveyors is arranged on a shelf frame in a plurality of upper and lower stages with the transfer direction being horizontal, and guide devices are provided on the side of each transfer path. In addition to dividing one conveyor of the transport device into multiple groups in the transport direction, it is possible to connect and disconnect the transmission device that is always linked to the drive device for each group, and separate the transmission device for each group when there is a load. Two groups adjacent to each other in the conveying direction are provided with a valve device so that both transmission devices are connected when the downstream group has no load, and the most downstream group has the transmission devices separated when there is a load.
A shelf facility using a carrier device, which is provided with an operation circuit having the transmission device and the valve device interposed therebetween.