JPH1087027A - Article housing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an article housing device in which article conveying means such as a roller conveyer is made in a light weight as much as possible, and a structure to support the article conveying means is also made in a simple structure and the light weight, and at the same time, a necessary braking force can be given to the conveying article adequately. SOLUTION: An entrance 4 to carry in and out articles; a housing part 5 to house plural articles by lining up from the entrance 4 to the depth direction; article conveying means provided along the article housing direction of the housing part 5, and composed to load the articles on the upper side; and energizing means to energize the article conveying means loading articles to the entrance 4 side; are provided. And a pair of article conveying means are provided by sorting to the left side and the right side, in the left and the right lateral direction almost orthogonal to the article housing direction of the housing part 5, and a brake device 33 to contact to the bottom surface of the article and to give a braking force to the article is provided, at the middle part of the left and the right lateral direction of the pair of article conveying means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a doorway for carrying articles in and out, a storage part for storing a plurality of articles arranged side by side in the depth direction from the doorway, and an arrangement along the article storage direction of the storage part. An article storage, comprising: an article transport unit provided and configured to place an article on the upper part thereof; and an urging means for urging the article transport unit on which the article is placed to move toward the entrance. Related to the device.

[0002]

2. Description of the Related Art In such an article storage apparatus, a roller conveyor composed of a plurality of rollers is generally used as an article transport means for placing and transporting articles on an upper portion. The storage section is disposed over the entire length in the horizontal direction perpendicular to the article storage direction.
Then, the entire roller conveyor is inclined so that the entrance side is lowered, and the inclination is used to move and urge the articles toward the entrance side. In this case, it is necessary to apply some braking force to the articles conveyed on the roller conveyor toward the entrance and exit, and conventionally, a specific roller among the rollers constituting the roller conveyor is used as a brake roller. And the brake roller applies a necessary braking force to the conveyed article.

[0003]

However, in such a conventional configuration, a relatively long roller is required as each roller constituting the roller conveyor, and a roller for braking is also long, so that the entire roller conveyor is heavy. As a result, the structure itself for supporting the roller conveyor needs to be rugged, and as a result, there is a disadvantage that the cost of the storage device is increased.

SUMMARY OF THE INVENTION The present invention has been made to overcome the above-mentioned drawbacks, and has as its object to reduce the weight of article conveying means such as a roller conveyor as much as possible and to provide a simple structure for supporting the article conveying means. Another object of the present invention is to provide an article storage device capable of appropriately reducing a weight of a conveyed article and appropriately applying a necessary braking force to a conveyed article.

[0005]

In order to achieve this object, according to the first aspect of the present invention, articles are placed and conveyed in the left and right lateral directions substantially orthogonal to the article storage direction of the article storage section. Since the article conveying means to be arranged is arranged in a pair by allocating the article conveying means to the left and right, it is possible to reduce the weight of the article conveying means as compared with the conventional one which is arranged over the entire length in the left and right lateral direction, Along with the weight reduction of the article conveyance means,
The structure supporting the article transporting means can also be lightweight and simplified, and the cost of the article storage device can be reduced. In the case where a pair of article conveying means is provided in such a manner as to be divided into right and left, in order to apply a braking force to a conveyed article in a substantially uniform state in the left-right direction, brake devices are respectively provided on the left and right article conveying means. Although it is necessary, in the present invention, a brake device that applies a braking force by contacting the bottom surface of the article is provided at a middle portion in the left-right lateral direction of the pair of article transport means that are separately arranged left and right. Therefore, even when only one brake device is provided, it is possible to appropriately apply a braking force to a conveyed article in a substantially uniform state in the left-right direction, and the braking force is applied to the article conveying means. Since it is not directly applied but directly applied by contacting the bottom surface of the conveyed article, reliable braking is possible.

According to the second aspect of the present invention, a pair of left and right article conveying means are guided so as to be rotatable forward and backward over an upper moving path and a lower moving path, and the articles are transported in the upper moving path. , A large number of bearings for rotatably holding each roller are required, as in the case where a pair of left and right article conveying means is constituted by a roller conveyor composed of a plurality of rollers. Without this, it can be implemented with a relatively simple configuration. Moreover, as an endless body on which the article is placed, a roller chain with a bearing that supports the roller portion via a rolling bearing is formed, and a guide member that supports the roller portion of the roller chain with the bearing is formed along the upper moving path. Therefore, the relative movement of the roller unit with respect to the guide member can be smoothly and smoothly conveyed. In that case, it would be very expensive if all the endless bodies were made up of roller chains with special bearings.However, by configuring only the article mounting part of the endless body with roller chains with bearings, special and expensive bearings were installed. The roller chain has a minimum necessary length, and furthermore, each roller chain with a bearing and the guide member are inclined so that the entrance side is lower, and each roller chain with a bearing on which an article is placed is moved in and out by the inclination. Since it is moved and biased to the side, no special biasing means or power source is required, and the cost of the apparatus can be further reduced.

According to the third aspect of the present invention, a brake device for applying a braking force to a conveyed article includes a rotating drum rotating in contact with a bottom surface of the article, and an inner peripheral surface of the rotating drum by centrifugal force generated by the rotation. And a braking member that applies a braking force to the rotating drum by sliding contact with the rotating drum. The rotation of the rotating drum that rotates in contact with the bottom surface of the article is increased by a planetary gear mechanism to rotate the braking member. As a result, not only can the brake member be surely brought into sliding contact with the inner peripheral surface of the rotating drum by the speed-up rotation, but also a large braking force when articles are transported at high speed, In such a case, a small braking force can be applied, and appropriate braking can be performed according to the transport speed of the article. In addition, the brake member and the planetary gear mechanism are provided inside the rotating drum. It is, can be protected from damage due to contact with other object.

[0008]

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 doorway 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 frame members 6 are provided below each of the storage sections 5 in the left and right directions as viewed from the entrance 4 side, in other words, in the left and right directions in the lateral direction substantially orthogonal to the article storage direction. Are arranged in a left-right distribution manner over the entire length in the front-rear direction, and are appropriately fixed to the cross beam 2 or the like. 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. 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, which will be described later, is provided in the slit. It is inserted so as to protrude from the upper side. Below the guide rail 7,
The rod-shaped body 8 is penetrated and welded so as to protrude left and right, and both ends of the rod-shaped body 8 are welded to the frame 6, so that the guide rail 7 is fixedly held on the frame 6, and The body 6 is reinforced by a pair of left and right tongue pieces 9 formed at a plurality of locations in the longitudinal direction. 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 a bolt and a nut.

As shown in FIGS. 4 and 5, a sprocket 10 is provided near the front end of each frame 6, in other words, closer to the end of the guide rail 7 on the entrance 4 side 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.

A 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.

Sprocket 10 and pulley 15 of each frame 6
An endless body made up of a roller chain 21 with a bearing as an article conveying means, a normal roller chain 22, and a wire 23 is stretched between the two. 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. On the other hand, normal roller chain 2
Reference numeral 2 denotes an ordinary roller chain which is not provided with a rolling bearing 25 or the like. The roller chain 21 with a bearing and the ordinary roller chain 22 have the same chain pitch.

As shown in FIG. 2, the roller chain 21 with a bearing has a length substantially equal to the length of the guide rail 7, and the normal roller chain 22 has a sprocket 10
, And a normal roller chain 22 is connected to an end of the roller chain 21 with a bearing on the entrance 4 side in a continuous state. further,
The other end of the normal roller chain 22 has a connecting member 28.
The other end of the wire 23 is also connected to the other end of the roller chain 21 with a bearing via a connecting member 28, and the roller chain 21 with the bearing and the normal roller chain are connected. 22 are engaged with the sprocket 10 and wound around the sprocket 10 and the pulley 15 so that the wire 23 is wound around the pulley 15, and is rotated in a forward and reverse direction over the upper moving path and the lower moving path. It is configured to be movable.

The lower opening of each frame 6 is closed by a guide plate 29 so that the roller plates 21 and 22 and the wire 23 are prevented from hanging down by the guide plate 29. A connecting tool 28 for connecting the normal roller chain 22 and the wire 23.
The chain stopper 30 with which the roller chain 21 abuts is fixed, and as shown in FIG.
It is configured to restrict the counterclockwise rotation of the endless body composed of the wire 23 and the wire 23. A similar chain stopper 31 is also fixed to the upper side of each frame 6, and a connecting tool 28 for connecting the roller chain 21 with a bearing and the wire 23 is configured to be able to contact the chain stopper 31.
As shown in (b) of FIG. 2, it is configured to restrict the clockwise rotation.

As shown in FIG. 3, an attachment frame 32 is provided at the center of the pair of left and right frame members 6 in each of the storage portions 5 in the left and right lateral direction, and is appropriately fixed to the cross beam 2 or the like. A brake device 33 is attached to the frame 32. This brake device 33, as shown in FIG.
A rotating drum 35 is rotatably held by a pair of left and right mounting arms 34, and the ends of both mounting arms 34 opposite to the entrance 4 are rotatable with respect to the mounting frame 32 via a horizontal shaft 36. Being pivoted. The ends of the two mounting arms 34 on the entrance 4 side are connected to each other by another horizontal shaft 37, two screw shafts 38 penetrate the horizontal shaft 37, and can be fixed by two nuts 39 respectively. It is configured. A coil spring 40 is interposed between the two screw shafts 38 and the mounting frame 32, and the rotating drum 35 rotates the coil spring 40 around the horizontal shaft 36.
And the coil spring 4
It is configured to be able to swing downward against the elastic force of zero.

As shown in FIGS. 12 and 13, a pair of brake members 41 slidably in contact with the inner peripheral surface of the rotary drum 35 and applying a braking force to the rotary drum 35 are provided in the space inside the rotary drum 35. And a planetary gear mechanism 42 for driving the brake member 41 to rotate at an increased speed as the rotary drum 35 rotates. That is, the holding shaft 43 is fixed to the pair of left and right mounting arms 34 so as to be relatively non-rotatable, the arm member 44 is fixed to one of them, and the two planetary gears 46 are rotatable on the arm member 44 via the shaft 45. Is held. Each of the planet gears 46 meshes with the internal gear 47 fixed to the rotating drum 35 and also meshes with a sun gear 48 provided on the axis of the holding shaft 43, and a sun shaft 49 fixed to the sun gear 48. The rotary drum 35 is held so as to be relatively rotatable. A pair of brake members 41 are mounted on a brake holding frame 50 fixed to the sun shaft 49.
1 and pivotally urged by a spring 52 in a direction away from the inner peripheral surface of the rotary drum 35, and a pair of centrifugal forces caused by the rotation of the brake holding frame 50 cause the pair to rotate. The brake member 41 is configured to slide against the inner peripheral surface of the rotating drum 35 against the elastic force of the spring 52.

At the end of each frame 6 on the entrance 4 side, a stopper member 53 for preventing the article A conveyed by the roller chain 21 with a bearing from dropping so that the entrance 4 side is higher. It is fixed by bolts and nuts in a state of being slightly inclined with respect to the horizontal direction in a side view.
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 54 of the stopper member 53 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. The stopper 55 is attached in an inclined state so as to be located above the article mounting surface B at the end of the stopper 55, and also comes into contact with the article A from the end of the stopper member 53 on the entrance 4 side to prevent the stopper 55 from dropping. Extend upward. A stopper 56 is also welded near the end opposite to the entrance 4 of each roller chain 21 with a bearing, and another stopper 57 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 portion 5 is empty, the endless body that becomes the two roller chains 21 and 22 and the wire 23 is inclined so that the side of the entrance 4 becomes lower, so that the weight of the two roller chains 21 and 22 heavier than the wire 23 is obtained. 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 54 of the stopper member 53 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 54 of the third roller 3 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, but the roller portion 24 rotates smoothly 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.
The bottom of the pallet P is the rotating drum 35 of the brake device 33
When the rotary drum 35 is rotated in contact with the rotation of the rotary drum 35, the rotation of the rotary drum 35 is accelerated by the planetary gear mechanism 42 to drive the brake member 41 to rotate, and the brake member 41 comes into sliding contact with the inner peripheral surface of the rotary drum 35. Then, the pallet P located on the side of the entrance 4 contacts the stopper 55 of the stopper member 53, so that further movement is reliably 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 in the back moves to the entrance 4 side together with the roller chain 21 with the bearing, and the brake device 33
And the position of the stopper 55 is maintained, and can be sequentially carried out as necessary.

When the next pallet P is loaded while the previously loaded pallet P is pushed inward, the pallet P with respect to the article mounting surface B of the roller chain 21 with bearings is moved.
In such a case, the pallet P comes into contact with the stopper 56 fixed to the roller chain 21 with a bearing,
After the contact, the pallet P and the roller chain 21 with the bearing are surely pushed together. Further, even if a predetermined number of articles A have been carried into the storage section 5, if another article A is to be carried in,
Since the pallet P located at the innermost position comes into contact with the stopper 57 provided on the lateral side of each frame body 6, it is possible to avoid a situation in which a predetermined number or more of articles A are erroneously carried in.

[Another Embodiment] In the above embodiment,
The article storage device is inclined so that the entrance 4 side is slightly lowered, and the roller chain 21 with a bearing is moved and urged toward the entrance 4 side by the inclination. However, as shown in FIG. An elastic body 58 made of a coil spring, rubber, or the like is interposed between the frame 22 and the frame body 6, and the elastic force of the elastic body 37 causes the roller chain 2 with a bearing.
1 and the like may be moved and urged toward the entrance 4 side. In this case, in particular, the article storage device does not need to be inclined, and can be installed horizontally. By inclining the apparatus in this manner, the roller chain 21 with a bearing can be moved and urged toward the entrance 4 side, or can be moved and urged using the elastic body 58 or the like. In the present specification, including the means, the means for moving and biasing the roller chain 21 with the bearing toward the entrance 4 is collectively referred to as the urging means 59.

In the embodiments described above, the left and right sprockets 10 are linked to each other by a link shaft 12 to link the endless body made up of the roller chain 21 with a bearing, the ordinary roller chain 22 and the wire 23. Although the configuration in which the connection shaft 12 is provided has been shown, the endless bodies may be linked with each other by eliminating the connection shaft 12 and connecting the roller chain 21 with a bearing and the normal roller chain 22 with another frame or the like. Further, the connection shaft 12 and the frame as described above are also eliminated, and the endless bodies can be linked with each other by contacting the stopper 56 when the pallet P is carried in. By eliminating the bearing, the bearing 11 can be eliminated.

Further, the embodiment in which the article A is placed on the pallet P and carried in and out has been described.
For example, it is also possible to carry out the article A in a state where the article A is stored in various containers such as buckets, or to carry out the article A directly. In this case, the rotating drum 35 of the brake device 33 comes into contact with the bottom surface of the container or the bottom surface of the article A to rotate, and when the article A is relatively light,
When the article A which has been carried in earlier is pushed into the interior, there is a risk that the article A may slip on the article mounting surface B of the roller chain 21 with a bearing. Will work effectively.

Although only the article mounting portion is constituted by the roller chain 21 with a bearing, the length of one chain constituting the roller chain 21 with a bearing is limited.
It is no longer possible to make the length slightly longer or shorter with respect to the article mounting portion. In this case, it is desirable to configure the roller chain 21 with a bearing slightly longer than the article mounting portion in consideration of safety. .

[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 an article storage unit.

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 partially cutaway side view of the brake device.

FIG. 12 is a longitudinal sectional front view of the brake device;

FIG. 13 is a partially cutaway side view of the brake device.

FIG. 14 is a schematic side view of an article storage section showing another embodiment.

[Explanation of symbols]

 4 Doorway 5 Storage Unit 7 Guide Member 21 Roller Chain with Bearing 24 Roller Unit 25 Rolling Bearing 33 Brake Device 35 Rotary Drum 41 Brake Member 42 Planetary Gear Mechanism 59 Biasing Means A Article

Claims (3)

[Claims] 1. An entrance for carrying in / out an article, a storage section for arranging a plurality of articles side by side in the depth direction from the entrance / exit, and a storage section arranged along the article storage direction of the storage section. An article storage device comprising: an article transport unit configured to place an article on an upper part; and an urging unit configured to move and bias the article transport unit on which the article is placed toward the entrance. In the left and right lateral direction substantially orthogonal to the article storage direction of the storage section, a pair of the article transport means are disposed left and right, and a pair of the article transport means is disposed at a middle portion in the left and right lateral direction,
An article storage device provided with a brake device that contacts a bottom surface of the article to apply a braking force to the article. 2. An endless body for guiding the pair of left and right article conveying means so as to be rotatable forward and backward over an upper moving path and a lower moving path, and for placing articles on the upper moving path. Only the article mounting portion of the endless body is constituted by a roller chain with a bearing that supports the roller portion via a rolling bearing, and the guide member that supports the roller portion of the roller chain with the bearing is moved upward. While providing along the path, each roller chain with a bearing and the guide member are inclined so that the entrance side is lowered,
2. The article storage device according to claim 1, wherein the roller chains with bearings on which the articles are placed are biased to move toward the entrance by the inclination. 3. A rotating drum that rotates by contacting a bottom surface of an article with a brake device, and a brake member that slides on an inner peripheral surface of the rotating drum by centrifugal force due to rotation to apply a braking force to the rotating drum. And a planetary gear mechanism for driving the brake member to rotate by increasing the rotation of the rotary drum, wherein the brake member and the planetary gear mechanism are provided inside the rotary drum. An article storage device according to claim 1.