JP3180892B2 - Article storage device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an entrance for carrying in / out an article, a storage section for accommodating a plurality of articles arranged in the depth direction from the entrance / exit, and an upward movement of the storage section along the article storage direction. An endless body guided rotatably forward and backward over the path and the lower moving path, and configured to place an article on the upper moving path, and an article placed on the upper moving path. A guide member provided along a lower side of an upper end moving path of the endless body to support the endless body, and configured to convey an article placed on the endless body by rotation of the endless body. The present invention relates to an article storage device.

[0002]

2. Description of the Related Art In an article storage apparatus having such a configuration, a roller chain is generally used as an endless body for placing and transporting articles, and sprockets are respectively provided at an entrance side and a back side of a storage section for storing articles. Is provided, and a roller chain is wound between the two sprockets, and the roller portion of the roller chain is supported by the guide member. However, since the weight of the article placed on the roller chain acts on the guide member via the roller portion of the roller chain, the relative movement of the roller portion with respect to the guide member cannot be performed smoothly. There was room.

[0003] Therefore, it has been proposed to use a special roller chain with a bearing configured to support the roller portion via a rolling bearing as a roller chain for placing and transporting articles.

[0004]

However, the above-described roller chain with bearings is quite special, has a complicated structure and is expensive, so that articles can be transported smoothly with relatively little power. However, there was a disadvantage that it became expensive. In that case, only the entrance and exit side of the storage part is made into a sprocket, the back side is made into a pulley, and a part of the roller chain with bearing is replaced with wire etc., and only the part that meshes with the sprocket is made into a roller chain with bearing, It is conceivable to reduce the cost. However, since the roller chain with a bearing is quite expensive, there is a limit to the cost reduction of the apparatus, and further reduction in cost has been desired.

[0005] The present invention satisfies such a conventional demand. The object of the present invention is to use a roller chain with a bearing as described above, and to carry out a smooth article transfer with little power. An object of the present invention is to provide an article storage device that can be further reduced in cost.

[0006]

To achieve Means for Solving the Problems] This object, according to the invention described in claim 1, the length of the endless member that is configured to place the article in the upper transfer pathways
Since only a part of the article mounting portion in the vertical direction is constituted by a roller chain with a bearing that supports the roller portion through a rolling bearing, it is special and expensive compared to the above-described conventional structure. Roller chain with a simple bearing is short,
In addition, since the guide member supports the roller portion of the roller chain with the bearing, the relative movement of the roller portion with respect to the guide member is smooth, and the article can be transported smoothly with less power. Can be achieved.

[0007] According to the second aspect of the present invention, of the endless body configured to place articles on the upper moving path, the article is placed at the entrance / outlet side in a part of the lengthwise article placement section. A roller chain with a bearing that supports the roller section via a rolling bearing only for the article mounting portion excluding the mounting range of one article to be mounted, and the mounting of one article to be mounted at the most entrance side Since the range is configured by a normal roller chain, and the guide member supports the roller portion of the roller chain with bearing and the roller portion of the normal roller chain, the invention according to claim 1 described above. On the other hand, the roller chain with a bearing can be shorter, although the smoothness of the article transport is somewhat inferior. That is, since the article placed closest to the entrance is carried in while being pushed by, for example, a forklift, the article is placed relative to the guide member, but the weight of the article is relatively large. There is hardly any relative movement in the state where is applied. Therefore, by replacing the mounting portion with an ordinary roller chain, the expensive roller chain with a bearing can be further shortened, and the cost can be further reduced.

According to the third aspect of the present invention, of the endless body configured to place an article on the upper moving path, the article is placed at the innermost side in a part of the article placing portion in the length direction. A roller chain with a bearing that supports the roller portion via a rolling bearing is used only for the article mounting portion excluding the mounting range of one article to be mounted, and is mounted on the innermost side of the article mounting portion. The range of one article to be placed is constituted by a movable frame that can move along the guide member, and the movable frame is provided with a plurality of rollers that are supported via rolling bearings. Since the guide member supports the roller and the movable frame, the length of the roller chain with bearing can be reduced in this case as compared with the first aspect of the present invention. In other words, although it is necessary to move the placement portion of the article placed on the innermost side along the upper movement path, it is always engaged with a sprocket for changing the direction between the upper movement path and the lower movement path. No need. Therefore, by replacing the mounting portion with a movable frame, the length of the roller chain with a bearing can be shortened, and the cost of the entire apparatus can be reduced.

According to the fourth aspect of the present invention, of the endless body configured to place articles on the upper moving path, the article is placed at the innermost side in a part of the article placing portion in the length direction. A roller chain with a bearing that supports the roller portion only through the rolling bearings, except for the mounting area of the single article to be mounted and the mounting range of the single article to be mounted closest to the entrance / exit side. And a movable frame body that can move the mounting range of one article to be mounted on the innermost side of the article mounting portion along the guide member, and the movable frame body includes a rolling bearing. A plurality of supporting rollers are provided, and the mounting range of one article to be placed on the most entrance side of the article placing portion is constituted by a normal roller chain, the roller portion of the roller chain with a bearing, the movable frame. Body rollers and communication Of the roller portion of the roller chain because the guide member is of a configuration to support, in the length of the required minimum bearing with roller chain, it is possible to significantly cost reduction of the entire apparatus.

According to the fifth aspect of the present invention, there is provided an urging means for urging the roller chain with a bearing in the upper moving path toward the entrance and exit of the storage section. By using an elastic body such as a spring, a roller chain with a bearing can be driven to rotate without requiring a special power source, and a stopper that regulates the movement of the roller chain with a bearing by its urging means. When the movement of the roller chain with the bearing is regulated by the stopper, a part of the roller chain with the bearing is configured to be located in the upper moving path, so that the roller chain with the bearing located in the upper moving path is provided. By placing a part of the article on the top and pushing it back together with the roller chain with bearing, the article is placed on the empty article storage It is easy to carry in the goods.In addition, by setting the length of the roller chain with bearing located on the upper moving path in advance according to the length of the article, it is possible to push the roller chain with bearing into the back. Instead, it is also possible to carry articles into an empty article storage unit.

According to the sixth aspect of the present invention, similar to the fifth aspect of the present invention, no special power source is required, and when the movement of the roller chain with a bearing is restricted by a stopper, the movable member is movable. Since the frame is configured so as to be located on the entrance side of the upper moving path, it is possible to easily load articles into the empty article storage section simply by placing articles on the movable frame. Can be.

According to the seventh aspect of the present invention, since a plurality of storage sections for storing articles arranged side by side are provided in a state of being arranged in parallel in the vertical and horizontal directions, a large number of articles can be stored. And since the entrance and exit of each storage part are provided in the same direction, articles can be carried in and out of each storage part from the same direction, and the entrance is inclined so that the entrance side is lowered. Therefore, it is easy to carry in / out the articles into / from each of the storage sections, and it is also possible to carry in / out while viewing the interior of each of the storage sections. For example, when carrying in, a predetermined number or more of articles are erroneously carried in. Can be prevented. Furthermore, depending on the setting of the angle of inclination to the entrance / exit side, it also serves as urging means for the entrance / exit side of the roller chain with bearing in the upper movement path, and it is not necessary to provide a special urging means such as a spring as described above. An article can be transported to the entrance by simply tilting the apparatus, and the apparatus can be reduced in cost.

According to the eighth aspect of the present invention, a part of the endless body other than a part in the length direction other than the article mounting part is constituted by a normal roller chain and a cord-like body. By using relatively inexpensive wires and ropes as the cord-like body, the cost of the device is reduced compared to the case where all parts other than the endless article mounting part are composed of ordinary roller chains. Can be. Then, one end of the normal roller chain is connected to the entrance / exit end of the endless article placement portion, and one end of the cord is connected to the other end of the normal roller chain. Since the other end of the string-shaped body is connected to the end on the far side of the endless article mounting portion, a roller chain with a bearing is provided at the entrance / exit side end of the endless article mounting portion. The roller chains of the same type as those described above are continuously connected, so that the direction change between the upper and lower moving paths is smooth, and the article can be transported more smoothly.

According to the ninth aspect of the present invention, one end of the cord is connected to a normal roller chain via a connector, and the other end of the cord is endless via a connector. Because it is connected to the back end of the article mounting part of the body, one end of a string such as a wire or a rope is easily and securely connected to a normal roller chain via a dedicated connecting tool Similarly, the other end of the cord can be easily and securely connected to the end on the back side of the article mounting portion, that is, the end of the roller chain with bearing or the movable frame by a dedicated connecting tool. Can be connected.

According to the tenth aspect of the present invention, a sprocket that meshes with a roller chain with a bearing and a normal roller chain is rotatably provided at the entrance / exit side of the storage unit. In comparison with the case where a guide body with a circular outer periphery is provided instead of the above, the direction change between the moving path between the upper and lower sides of the roller chain with bearing or the normal roller chain becomes smoother and more reliable, and the noise is reduced. And the string is wound around a pulley rotatably provided in the back of the storage section, so that the direction of the string can be smoothly changed and the overall power can be reduced. Smooth article conveyance becomes possible.

According to the eleventh aspect of the present invention, a stopper member having an upper surface on which articles can be placed is provided at an end of the endless body on the entrance / exit side of the upper moving path. The end opposite to the entrance is positioned below the endless article mounting surface, and the end on the entrance side is positioned above the article mounting surface. The article placed on the frame or the like and conveyed to the entrance / exit side smoothly rides on the upper surface of the stopper member, and thereafter, a braking force is applied by sliding contact with the upper surface located above the article placement surface. In other words, the conveyed article can be stopped by the braking force.

According to the twelfth aspect of the invention, there is provided a chain stopper for restricting the movement of the storage portion of the roller chain with bearing in the upper moving path to the rear side, and the movement of the roller chain with bearing is controlled by the chain stopper. When regulated, since the article placement portion of the endless body is configured to be located on the upper moving path, even when trying to carry in a predetermined number or more of articles when carrying articles into each storage section, Since the movement of the roller chain with the bearing to the rear side is restricted by the chain stopper, a situation in which a predetermined number or more of articles are erroneously carried in is avoided.

According to the thirteenth aspect of the present invention, the article stopper that comes into contact with the article is fixed to the innermost portion of the part in the length direction of the endless body.
When the article is loaded, even if a slip occurs between the article and the article mounting portion, the article can be brought into contact with the article stopper and the article and the article mounting section can be pushed together, and the article A predetermined number of articles can be securely stored on the placing portion.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an article storage device according to the present invention will be described with reference to the drawings. As shown in FIG. 1, the article storage device was entirely framed by a plurality of main columns 1 erected in a vertical direction and horizontal beams 2 and reinforcing beams 3 connecting the main columns 1. A plurality of entrances / exports 4 made of a metal structure and for carrying in / out the article A are provided in the front and in the vertical and horizontal directions. From each entrance 4 toward the depth direction behind,
The storage unit 5 is configured to store a plurality of articles A in a row while being placed on the pallet P, and the entire structure is inclined so that the entrance 4 side is slightly lower. In this embodiment, the top floor of the structure is also configured as the storage section 5, and therefore, the front of the storage section 5 on the top floor is also configured as the entrance 4.

As shown in FIG. 3, a pair of left and right frame members 6 are disposed below the inside of each storage part 5 over the entire length in the front-rear direction as shown in FIG. It is fixed appropriately. As shown in FIG. 8, the frame body 6 is an integrally molded product made of a metal material having a U-shaped cross section, and is disposed with its U-shaped opening downward, and the center of its upper side in the left-right direction. In
A slit is formed over substantially the entire length excluding the front end and the rear end, and a guide rail 7 as a guide member for supporting a roller portion of a roller chain described later is formed in the slit.
Are inserted so as to protrude from the upper side of the frame 6.
Below the guide rail 7, a rod 8 is penetrated and welded so as to protrude left and right, and both ends of the rod 8 are welded to the frame 6, so that the guide rail 7 is framed. 6 and is reinforced by a pair of left and right tongue pieces 9 formed at a plurality of positions in the longitudinal direction of the frame body 6. As means for holding the guide rail 7 on the frame 6, in addition to welding using the rod 8 as described above, it is also possible to fix and hold using the bolts and nuts.

As shown in FIGS. 4 and 5, a sprocket 10 is provided near the front end of each frame 6, in other words, near the end of the guide rail 7 closer to the entrance 4 than the front end.
1, the sprocket 10 is held rotatably, and the upper part of the sprocket 10 is held in the upper side of the frame 6 so as to protrude upward from the cutout portion of the opening. Of the sprockets 10
Are linked to each other. As shown in FIGS. 6 and 7, a pulley shaft 14 penetrating through the elongated hole 13 is provided near the rear end of each frame 6, and a pulley 15 is relatively rotated via a bearing 16 on the pulley shaft 14. The upper part of the pulley 15 is also configured to protrude upward from the cutout portion of the opening on the upper side of the frame body 6.

Pulley shaft 14 for holding the pulley 15
Is a tension bracket 17 located inside the frame 6.
A bolt 18 is attached to the tension bracket 17 so as to allow only relative rotation. Another bracket 19 is fixed to a portion of the frame 6 closer to the entrance 4 than the tension bracket 17, and the bolt 18 is screwed to the bracket 19, and an operation port having an opening on the side of the frame 6. 20 to bolt 18
By rotating the pulley, the position of the pulley shaft 14 is changed along the elongated hole 13 so that the distance between the sprocket 10 and the pulley 15 can be changed.

In the first embodiment, a roller chain 21 with a bearing, a normal roller chain 22, and a wire 23 as a cord-like body are provided over the sprocket 10 and the pulley 15 of each frame 6 over the sprocket 10 and the pulley 15. Endless body is hung. As shown in FIGS. 9 and 10, the roller chain 21 with a bearing is a special roller chain having a small frictional resistance in which a roller portion 24 is relatively rotatably held by a roller pin 26 via a needle-shaped rolling bearing 25. The chain plate 27 is bent to the upper surface side, and the bent chain plate 27 forms an article mounting surface B on which the article A is mounted. Sand
The article placement surface B as an article placement portion is an endless body.
Length of the endless body
Only part of the product placement surface B in the direction
21. On the other hand, the ordinary roller chain 22 is an ordinary ordinary roller chain not provided with the rolling bearing 25 and the like. The roller chain 21 with the bearing and the ordinary roller chain 22 have the same chain pitch. ing.

As shown in FIG. 2, the roller chain 21 with a bearing has a length L1 substantially equal to the length of the guide rail 7.
The normal roller chain 22 has a length slightly longer than a half circumference of the sprocket 10, and a normal roller chain 22 is provided at an end of the roller chain 21 with a bearing on the entrance 4 side. They are connected in a continuous state. Further, a wire 23 is connected to the other end of the normal roller chain 22 via a connecting member 28, and the other end of the wire 23 is also connected to the other end of the roller chain 21 with a bearing via the connecting member 28. The roller chain 21 with bearings and the normal roller chain 22 are connected to the ends of the sprocket 1.
0, and is hung over each sprocket 10 and the pulley 15 so that the wire 23 is wound around the pulley 15, and is configured to be rotatable forward and backward over the upper moving path and the lower moving path. Have been.

The lower opening of each frame 6 is closed by a guide plate 29, as shown in FIG.
Thus, the roller chains 21 and 22 and the wire 23 are prevented from hanging down, and the guide plate 29 is in contact with a chain stopper 30 with which a connecting tool 28 for connecting the normal roller chain 22 and the wire 23 abuts. Is fixed, and as shown in FIG. 2A, the end of the roller chain 21, 22 and the wire 23 is rotated in the counterclockwise direction by the contact of the connecting member 28 with the chain stopper 30. Is configured to regulate. Each frame 6
A similar chain stopper 31 is also fixed to the upper side of the chain stopper 31. The chain stopper 31 is configured to be able to abut on a connecting member 28 for connecting the roller chain 21 with a bearing and the wire 23, as shown in FIG. As shown in (b), the endless body is configured to restrict clockwise rotation.

As shown in FIGS. 4 and 5, the movement of the article A conveyed by the roller chain 21 with the bearing is stopped at the end of the roller chain 21 with the bearing on the side of the entrance 4 in the upper moving path. A stopper member 32 for preventing falling is fixed by bolts and nuts in a state in which the stopper member 32 is slightly inclined with respect to the horizontal direction in a side view so that the entrance 4 side is higher. That is, since the entire article storage device is inclined so that the entrance 4 side becomes lower in a side view, the article placement surface B formed by the roller chain 21 with the bearing along the inclination also has the entrance 4 side. It is inclined to be slightly lower. As shown in FIG. 4, the upper surface 33 of the stopper member 32 is lower than the article placement surface B at the end opposite to the entrance 4 on the entrance 4 side with respect to the inclined article placement surface B. At the end of the stopper 34, the stopper 34 is attached in an inclined state so as to be located above the article mounting surface B, and comes in contact with the article A from the end of the stopper member 32 on the entrance 4 side to prevent the stopper 34 from dropping. Extend upward. An article stopper 35 is also welded near the end opposite to the entrance 4 of each roller chain 21 with a bearing, and another stopper 36 is also provided on the lateral side of each frame 6. .

The loading and unloading of the articles A into and out of the article storage device is usually performed using a forklift. In order to load the articles A into the empty storage section 5, the articles A are lifted together with the pallets P by the forklift, and the entrance and exit. The pallet P on which the article A is placed from 4 is placed on the article placing surface B of the roller chain 21 with a bearing. When the storage part 5 is empty, the endless body composed of the two roller chains 21 and 22 and the wire 23 is inclined so that the side of the entrance 4 is lower, so that the weight of the two roller chains 21 and 22 heavier than the wire 23 is. As a result, an urging force for moving the roller chain 21 with the bearing toward the entrance 4 acts, and the normal roller chain 2
The connecting tool 28 that connects the wire 2 and the wire 23 is in contact with the chain stopper 30.

In this state, since the position of the chain stopper 30 is set in advance so that one pallet P can be placed, the upper surface 33 of the stopper member 32 and the article placing surface B of the roller chain 21 with bearings are set. And the pallet P is placed. Subsequently, in order to carry the article A into the same storage section 5, the article A is lifted together with the pallet P by a forklift, and the pallet P which has been carried in earlier is pushed into the pallet P. Then, the previously loaded pallet P and the roller chain 21 with bearing are pushed into the back together.
The pallet P is placed over the upper surface 33 of the second and the article placement surface B of the roller chain 21 with a bearing.

At the time of the pushing, the roller portion 24 of the roller chain 21 with a bearing moves while contacting the guide rail 7. However, the roller portion 24 is smoothly rotated by the action of the rolling bearing 25. That is, the pallet P that has been carried in earlier can be pushed in relatively easily. After the previous pallet P is pushed in and the next pallet P is placed in this manner, each pallet P moves toward the entrance 4 together with the roller chain 21 with the bearing by the biasing force due to the inclination.
When the pallet P located on the entrance 4 side contacts the stopper 34 of the stopper member 32, further movement is prevented.

In this way, the articles A are sequentially carried into the storage section 5 together with the pallets P. When a predetermined number of articles A have been carried in, the roller chains 21 with bearings are guided by the guide rails 7.
The upper roller chain 22 is located above the sprocket 1
It is in a state of being engaged with 0. In order to carry out the carried-in article A from the storage section 5, the article A on the entrance 4 side is lifted and taken out together with the pallet P by a forklift, contrary to the time of carrying-in. Then, the article A located in the back moves to the entrance 4 side together with the roller chain 21 with the bearing, and the position is held by the action of the stopper 34, so that the article A can be sequentially carried out as needed.

When the next pallet P is carried in while pushing the pallet P which has been carried in earlier, the pallet P with respect to the article placement surface B of the roller chain 21 with a bearing is moved.
In such a case, the pallet P comes into contact with the article stopper 35 fixed to the roller chain 21 with the bearing, and after the contact, the pallet P and the roller chain 21 with the bearing come into contact with each other. , Will surely be pushed together. When a predetermined number of articles A are placed and stored on the article mounting surface B of the roller chain 21 with a bearing, when another article A is to be carried in, the roller chain 21 with the bearing and the wire 23 are connected. The connecting member 28 contacts the chain stopper 31 to prevent the article A from being carried in any further. Similarly, if a predetermined number or more of articles A are erroneously carried in, the innermost pallet P comes into contact with the stopper 36 provided on the lateral side of each frame 6. Double loading is avoided.

Next, the second to fourth embodiments will be described. The only difference from the first embodiment is the configuration of an endless body that extends over the sprocket 10 and the pulley 15. In addition to the configuration described above, the method of carrying in and out the article A is all the same as in the first embodiment, and therefore only the differences will be mainly described.

First, also in the second embodiment, the endless body hung over the sprocket 10 and the pulley 15
Roller chain 21 with bearing, normal roller chain 22,
And a wire 23, and there is no difference in this point from the first embodiment. However, in the second embodiment, as shown in FIG. 11, the length L2 of the roller chain 21 with a bearing is shorter and the length of the normal roller chain 22 is longer than that of the first embodiment. ing. That is, in the first embodiment,
The length of the roller chain 21 with a bearing is substantially equal to the length L1 of the guide rail 7 and the entire length of the article mounting portion of the endless body is constituted by the roller chain 21 with the bearing. A plurality of pallets P are arranged in a line. Of the roller chain 21 with a bearing, the length of one pallet placed closest to the entrance is not necessary to place and move the pallet P on which the article A is placed. Is replaced by a normal roller chain 22 and the length L2 is shortened accordingly.

Also in the third embodiment, the length of the roller chain 21 with the bearing is substantially the same as the length L in the second embodiment.
FIGS. 12 to 14 show a second embodiment of the present invention, in which a metal pallet having a length substantially equal to one pallet is provided between the roller chain 21 with a bearing and the wire 23 in the first embodiment. The movable frame 37 is interposed. That is, among the roller chains 21 with bearings, in which a plurality of pallets P are arranged in a line, a portion corresponding to one pallet located at the innermost portion does not need to be wound with the sprocket 10, so that it is expensive. The roller chain 21 with a bearing is replaced with a movable frame body 37 that moves smoothly, so that the roller chain 21 with a bearing has a length L2 shorter by one pallet than in the first embodiment. It has become.

As shown in FIG. 14, the movable frame 37 has a U-shaped cross section with an open bottom, and a plurality of needle-shaped rolling bearings 38 are provided in its internal space through pins 39. A plurality of rollers 40 having a small frictional resistance are rotatably provided, and the plurality of rollers 40 rotate on the guide rails 7 so that the movable frame 37 moves smoothly along the guide rails 7. And an upper surface thereof is formed on the article placement surface B. The roller chain 21 with a bearing is connected to the end of the movable frame 37 on the entrance 4 side, and the article mounting surface B on the upper surface of the movable frame 37 and the chain plate 2 of the roller chain 21 with the bearing.
7 is configured so that the article mounting surface B on the upper surface is substantially flush with the upper surface, and the wire 23 is connected to the end on the opposite side of the movable frame 37 via the same connector 28 as in the first embodiment. An article stopper 35 similar to that of the first embodiment is welded to the movable frame 37 near the end opposite to the entrance 4.

In the fourth embodiment, as shown in FIG. 15, the same movable frame 37 as that of the third embodiment is interposed between the roller chain 21 with the bearing and the wire 23. In the same manner as in the second embodiment, of the article placement portions of the endless body, the length of one pallet placed closest to the entrance / exit side is a normal roller chain 2.
2 are used. Therefore, in the fourth embodiment, the roller chain 21 with a bearing has a length L3 shorter than that of the first embodiment by two pallets. Is the shortest necessary minimum length among the embodiments.

[Other Embodiments] In the embodiments described above, an example was shown in which a pair of endless bodies were provided below each of the storage portions 5 on the left and right sides, but depending on the type of pallet P used,
It is necessary to arrange three endless bodies. That is, in the case of a normal pallet P as shown in FIG. 16, it is sufficient to provide a pair of left and right endless bodies, but in the case of a European pallet P as shown in FIG. It is preferable to arrange them. However, even when a normal pallet P is used, three or more endless bodies can be provided in consideration of the weight of the article A to be handled.
Various changes can be made in actual implementation, for example, by mixing the storage section 5 provided with two or more storage sections and the storage section 5 provided with two pieces.

When arranging two or more endless bodies as described above,
In the above embodiments, the left and right sprockets 1
0 are connected by the connecting shaft 12, but the connecting shaft 12 is omitted and the roller chain 21 with a bearing is removed.
The endless bodies can be linked to each other by connecting the movable frame bodies 37 or the normal roller chains 22 with another frame body or the like. Further, the connecting shaft 12 and the frame as described above are also abolished, and the endless bodies can be linked with each other by abutting on the article stopper 35 when the pallet P is carried in. By omitting the bearing 12, the bearing 11 can be eliminated.

Similarly, the embodiment in which the article A is placed on the pallet P and carried in and out is shown. However, the article A is carried out in a state where the article A is stored in various containers such as buckets without using the pallet P. It can also be carried out such that the article A is directly loaded or unloaded. In this case, if the article A is relatively light, there is a possibility that the article A which has been carried in earlier may slip on the article mounting surface B of the roller chain 21 with bearing and the movable frame 37 when the article A is pushed inward. However, in such a case, the article stopper 35 fixed to the roller chain 21 with the bearing and the movable frame 37 effectively functions. When a predetermined number of articles A are placed and stored on the article placement surface B, the contact of the coupling tool 28 with the chain stopper 31 and
The contact of the article A with the stopper 36 provided on the lateral side of the frame 6 prevents further pushing. As described above, a double safety measure is taken by the chain stopper 31 and the stopper 36, but one of them, for example, the stopper 36 may be omitted and only the chain stopper 31 may be provided.

In the above embodiments, the entrance 4
The article storage device is inclined so that the side thereof is slightly lower, and the inclined roller chain 21 and the movable frame 37
18 is moved to the entrance 4 side, but as shown in FIG. 18, an elastic body 41 made of a coil spring or rubber is interposed between the normal roller chain 22 and the frame 6, The elastic force of the elastic body 41 allows the roller chain 2 with a bearing to be used.
1 and the like may be moved and urged toward the entrance 4 side. In that case, the article storage device is tilted to
The roller chain 21 with a bearing can be moved and urged toward the doorway 4 by the cooperative action of the inclination and the inclination. Further, it is also possible to urge and move the roller chain 21 toward the doorway 4 only by the elastic body 41. In particular, the article storage device need not be inclined, and can be installed horizontally. By tilting the apparatus in this manner, the roller chain 21 with bearings and the movable frame 37 can be moved and urged toward the entrance 4 side, or can be moved and urged using the elastic body 41 and the like. In the present specification, a means for moving and biasing the roller chain 21 with the bearing toward the entrance 4 including the various means is collectively referred to as a biasing means 42.

Further, in the above embodiments,
The configuration in which the predetermined number or more of the articles A are prevented from being pushed by the contact of the roller chain 21 with the bearing and the connecting tool 28 for connecting the movable frame body 37 and the wire 23 to the chain stopper 31 has been described. As shown in FIG. 20, a large chain stopper 31A extending upward is fixed to the frame 6 with bolts 43 and nuts 44 penetrating the frame 6,
An article stopper 35 fixed to the roller chain 21 with a bearing or the movable frame 37 may be brought into contact with the chain stopper 31A to prevent a predetermined number or more of pushing. 21 and the movable frame 37 may be directly in contact with each other to prevent unnecessary pushing.

In another embodiment shown in FIGS. 19 and 20, the pulley shaft 14 supporting the pulley 15 is attached to a U-shaped tension bracket 17A located outside the frame 6 in plan view. Nut 45 attached and welded to its tension bracket 17A
A bolt 18A is screwed into the
The tip of A is configured to contact the lid 19 </ b> A fixed inside the frame 6. Therefore, in this embodiment, the tension is adjusted by loosening the lock nut 46, rotating the bolt 18A, and changing the position of the pulley shaft 14 along the elongated hole 13, as in the previous embodiment. A simple operation port 20 is not required, and the tension can be easily adjusted from the rear side of each storage section 5.

In the case where the article mounting portion is entirely constituted by the roller chain 21 with a bearing, the roller chain 21 with a bearing may be used.
Due to the length of one of the chains, the length of the chain is slightly longer or shorter than that of the article mounting portion, and the entrance / exit side of the roller chain 21 with the bearing is connected to the normal roller chain 22. The same applies to the case of replacement. If the length is slightly longer or shorter, it is desirable to make the roller chain 21 with a bearing slightly longer in consideration of safety. Further, when a part of the roller chain 21 with a bearing is replaced with the movable frame 37, the length of the movable frame 37 does not necessarily have to be the length of one pallet, and is shown in FIGS. As described above, the length may be slightly shorter in order to avoid interference with the sprocket 10, and conversely, the length may be longer than the length of one pallet as long as the pallet P can be inserted and placed by a forklift. it can.

[Brief description of the drawings]

FIG. 1 is a perspective view of an entire article storage device.

FIG. 2 is a schematic side view of the article storage unit according to the first embodiment.

FIG. 3 is a partially cutaway plan view of the article storage unit.

FIG. 4 is a partially cutaway side view of an entrance / exit side of an article storage unit.

FIG. 5 is a plan view of the entrance / exit side of the article storage unit.

FIG. 6 is a side view of a rear end side of the article storage unit.

FIG. 7 is a partially cutaway plan view of the rear end side of the article storage unit.

FIG. 8 is a sectional view of a frame and a guide member.

FIG. 9 is a longitudinal sectional side view of a roller chain.

FIG. 10 is a cross-sectional plan view of a roller chain.

FIG. 11 is a schematic side view of an article storage unit according to a second embodiment.

FIG. 12 is a schematic side view of an article storage unit according to a third embodiment.

FIG. 13 is a side view of the movable frame.

FIG. 14 is a sectional view of a movable frame.

FIG. 15 is a schematic side view of an article storage article according to a fourth embodiment.

FIG. 16 is a schematic sectional view of an article storage unit and a pallet.

FIG. 17 is a schematic sectional view of an article storage unit and a pallet.

FIG. 18 is a schematic side view of an article storage section showing another embodiment.

FIG. 19 is a side view of the rear end side of the article storage section showing another embodiment.

FIG. 20 is a plan view of a rear end side of the article storage section showing another embodiment.

[Explanation of symbols]

 4 Doorway 5 Storage Unit 7 Guide Member 10 Sprocket 15 Pulley 21 Roller Chain with Bearing 22 Normal Roller Chain 23 String 24 Roller Unit 25 Rolling Bearing 28 Connecting Tool 30 Stopper 31, 31A Chain Stopper 32 Stopper Member 33 Stopper Member 33 Upper Surface of Stopper Member 35 article stopper 37 movable frame body 38 rolling bearing 40 roller 42 biasing means A article B article mounting surface

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B65G 1/00-1/20 B65G 17/00-17/48 B65G 25/00-25/12

Claims (13)

(57) [Claims] 1. An entrance for carrying in / out an article, a storage section for storing a plurality of articles arranged in a depth direction from the entrance / exit, and an upper moving path and a lower moving path along the article storing direction of the storing section. It is guided so that it can rotate forward and backward freely,
And, an endless body configured to place an article on the upper moving path, and provided along the lower side of the upper moving path of the endless body to support the endless body on which the article is mounted on the upper moving path. An article storage device comprising a guided member, and configured to transport an article placed on the endless body by rotation of the endless body, wherein a part of the endless body in a length direction is provided. An article storage device in which only an article mounting portion is configured by a roller chain with a bearing that supports the roller portion via a rolling bearing, and the guide member supports the roller portion of the roller chain with the bearing. . 2. An entrance for carrying in / out an article, a storage section for arranging a plurality of articles side by side in a depth direction from the entrance / exit, and an upper moving path and a lower moving path along the article storing direction of the storing section. It is guided so that it can rotate forward and backward freely,
And, an endless body configured to place an article on the upper moving path, and provided along the lower side of the upper moving path of the endless body to support the endless body on which the article is mounted on the upper moving path. An article storage device comprising a guided member, and configured to transport an article placed on the endless body by rotation of the endless body, wherein a part of the endless body in a length direction is provided. Of the article placement parts, only the article placement part excluding the placement range of one article placed on the entrance side is configured with a roller chain with a bearing that supports the roller part via a rolling bearing, and The mounting range of one article to be placed on the most entrance side of the article mounting portion is configured by a normal roller chain, and the roller portion of the roller chain with the bearing and the roller portion of the normal roller chain. The above An article storage device configured to be supported by a guide member. 3. A doorway for carrying in / out an article, a storage section for storing a plurality of articles side by side in a depth direction from the entrance / exit, an upper moving path and a lower moving path along the article storing direction of the storing section. It is guided so that it can rotate forward and backward freely,
And, an endless body configured to place an article on the upper moving path, and provided along the lower side of the upper moving path of the endless body to support the endless body on which the article is mounted on the upper moving path. An article storage device comprising a guided member, and configured to transport an article placed on the endless body by rotation of the endless body, wherein a part of the endless body in a length direction is provided. Of the article placement sections, only the article placement section excluding the placement range of one article placed on the innermost side is configured with a roller chain with a bearing that supports the roller section via a rolling bearing, and The mounting range of one article placed on the innermost side of the article placing portion is constituted by a movable frame movable along the guide member, and the movable frame is provided with a rolling bearing via a rolling bearing. Providing multiple supporting rollers An article storage device configured such that the guide member supports a roller portion of the roller chain with a bearing and a roller of a movable frame. 4. An entrance for carrying in / out an article, a storage section for arranging a plurality of articles side by side in a depth direction from the entrance / exit, an upper moving path and a lower moving path along the article storing direction of the storing section. It is guided so that it can rotate forward and backward freely,
And, an endless body configured to place an article on the upper moving path, and provided along the lower side of the upper moving path of the endless body to support the endless body on which the article is mounted on the upper moving path. An article storage device comprising a guided member, and configured to transport an article placed on the endless body by rotation of the endless body, wherein a part of the endless body in a length direction is provided. Of the article placement parts, only the article placement part excluding the placement range of one article placed at the innermost side and the placement range of one article placed at the entrance / exit side, its roller part A movable roller chain configured with a bearing-supported roller chain that supports via a rolling bearing, and is capable of moving along the guide member a placement range of one article placed on the innermost side of the article placement portion. It is composed of a frame and its movable frame A plurality of rollers supported via rolling bearings are provided, and the mounting range of one article to be mounted on the most entrance side of the article mounting portion is constituted by a normal roller chain, and the bearing is provided. An article storage device configured such that the guide member supports a roller portion of a roller chain, a roller of the movable frame, and a roller portion of the normal roller chain. 5. An urging means for urging the roller chain with a bearing in the upper moving path toward the entrance of the storage portion, and a stopper for restricting the movement of the roller chain with the bearing by the urging means. Provided, when the movement of the roller chain with bearing is regulated by the stopper,
The article storage device according to claim 1, wherein a part of the roller chain with a bearing is configured to be located in the upper movement path. 6. An urging means for urging the roller chain with a bearing in the upper moving path toward the entrance of the storage portion, and a stopper for restricting the movement of the roller chain with the bearing by the urging means. Provided, when the stopper restricts the movement of the roller chain with the bearing,
The article storage device according to claim 3, wherein the movable frame is configured to be located on an entrance side of the upper movement path. 7. A plurality of storage sections are provided in a state of being arranged in parallel in a vertical direction and a horizontal direction, and an entrance and an exit of each storage section are provided in the same direction, and the entrance side is inclined so as to be lower. Item storage device according to any one of Items 1 to 6. 8. A part of the endless body other than a part on which a product is placed in a length direction is constituted by a normal roller chain and a string-like body, and one end of the normal roller chain. Part of the endless body on the entrance side of the article mounting portion, and one end of the cord-like body to the other end of the normal roller chain, and the other end of the cord-like body The article storage device according to any one of claims 1 to 7, wherein a portion is connected to an end of the endless body on a depth side of an article placement portion. 9. An end of the string-shaped body is connected to the ordinary roller chain via a connecting member, and the other end of the string-shaped body is connected to an article mounting portion of the endless body via a connecting member. 9. The article storage device according to claim 8, wherein the article storage device is connected to a rear end. 10. A sprocket that meshes with the roller chain with a bearing and a normal roller chain is rotatably provided at an entrance / exit side of the storage unit, and a pulley that winds the cord-like body is provided at the back of the storage unit. The article storage device according to claim 8, wherein the article storage device is rotatably provided on the device. 11. A stopper member having an upper surface on which articles can be placed is provided at an end of the endless body on the entrance side of the upper movement path, and an end of the upper surface of the stopper member opposite to the entrance. The article storage according to any one of claims 1 to 10, wherein a part is located below the endless article placement surface, and an end on the entrance / exit side is located above the article placement surface. apparatus. 12. A chain stopper for restricting the movement of the roller chain with bearing in the upper moving path to the rear side of the storage portion. When the movement of the roller chain with bearing is restricted by the chain stopper, the endless end is provided. The article storage device according to any one of claims 1 to 11, wherein an article placement portion of the body is configured to be located on the upper movement path. 13. An article stopper that abuts an article is fixed to the innermost part of the endless body at the innermost part of the article mounting portion in the length direction. Item storage device according to the paragraph.