JP2012012195A - Article storage facility - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an article storage facility which allows an article transfer means to move more rapidly.SOLUTION: The article storage facility includes an article storage shelf 1 with a plurality of storage sections S juxtaposed vertically and horizontally to put and support a columnar or cylindrical article B in a horizontally laid position where a shaft center direction of the article faces a depth direction and an article transfer means M which transfers the article B to any of the storage sections S. The article transfer means M is configured to have an article support 17A capable of freely putting and supporting the article B in such a way that the support freely reciprocates between a retracted state and a projected state and freely moves up and down and to execute scoop processing for fetching the article B put and supported in the storage section S and unload processing for housing the article B put and supported on the article support 17A in the storage section S, wherein the article transfer means M is further equipped with an article receiver 30 for receiving the side of the article B put and supported on the article support 17A put in the retracted state in a directional vision along the article support 17A in a reciprocating direction.

Description

  The present invention provides an article storage shelf in which a plurality of storage units for placing and supporting a columnar or cylindrical article in a laterally inclined posture with its axial direction oriented in the depth direction, and the article storage shelf There is provided article transfer means for moving the article in a vertical and horizontal direction in the article transfer space on the front surface side of the article, and transferring the article to the storage unit. The article transfer means is capable of placing and supporting the article. The article support is provided in a retracted state positioned in the article transport space and a protruding state protruding into the storage portion and is movable up and down, and can be moved up and down. , A scooping process for taking out the article placed and supported in the storage part, and a lowering process for storing the article placed and supported on the article support in the storage part, wherein the storage part is The protruding article support can freely pass up and down. A pair of left and right article placement portions located on both sides of the article support passage opening are provided, and the article is placed and supported in a rolling restrained state in which the bottom of the article is inserted between the pair of article placement portions. The article support is provided with an article placement section formed in a concave shape in which the center side is lower than the outer side in a direction view along the withdrawal / retraction direction. The present invention relates to an article storage facility configured to place and support an article in a rolling restrained state in which the bottom of the article is inserted.

Such an article storage facility is used to store a columnar or cylindrical article such as a roll article.
And when performing the scooping process which takes out the articles mounted and supported in the storage section, the article support is directed toward the lower side of the articles mounted and supported on the pair of left and right article mounting portions in the storage section. After projecting, the article support is raised while passing through the article support passage opening, so that the article placed and supported on the pair of left and right article placement portions is placed on the placement surface of the article support. Then, the article support is retired to the retreated state.

  Further, when performing the lowering process for storing the article placed and supported on the article support in the storage unit, the article placed and supported on the article support is positioned above the pair of left and right article placement parts in the storage unit. Then, after the article support is protruded in a protruding state, the article support is lowered while passing through the opening for passing the article support, whereby the article placed and supported by the article support is paired with the left and right articles. It is made to mount in a mounting part, and an article support body is withdrawn in a retirement state after that.

  As a conventional example of such an article storage facility, an article placed and supported on an article support by performing the above-described scooping process is simply placed and supported in a rolling restrained state by the article support. (See, for example, Patent Document 1 (paragraphs [0015] and [0016] and FIGS. 10 to 13 of the specification).)

JP-A-8-73011

  In the conventional article storage facility, the article placed and supported on the article support by performing the scooping process is simply placed and supported in a rolling restrained state by the article support, so that the article transfer means However, when the article is moved vertically and horizontally in the article transport space on the front side of the article storage shelf, the article may roll and fall off the article support so that the article transfer means can move at high speed. There was a problem that was difficult to convert.

  That is, the movement of the article transfer means increases from the stopped state to the steady movement speed, moves at the steady movement speed, then decelerates from the steady movement speed to the stop creep speed, and stops at the target stop position. In order to prevent the article from rolling and falling off the article support, it is increased from the stationary state to the steady movement speed, or from the steady movement speed to the creep speed. The speed of the movement of the article transfer means is increased in order to improve the conveyance efficiency of the article. It was difficult to increase the speed of movement.

  This invention is made in view of the said situation, Comprising: It exists in the point which provides the article storage equipment which can speed up the movement of an article transfer means.

The article storage facility according to the present invention includes an article storage shelf in which a plurality of storage units for mounting and supporting a columnar or cylindrical article in a sideways posture in which the axial direction of the article is directed in the depth direction, and the article There is provided article transfer means that is moved vertically and horizontally in the article transfer space on the front side of the storage shelf and transfers articles to the storage unit,
The article transfer means includes an article support body on which an article can be placed and supported in a retractable state positioned in the article transporting space and a protruding state protruding into the storage portion, and can be moved up and down. The article support is moved out and raised and moved up and down to remove the article placed and supported on the storage unit, and the article placed and supported on the article support is stored in the storage unit. Configured to perform the unloading process,
The storage portion includes a pair of left and right article placement portions located on both sides of an opening for passing the article support body through which the article support in the protruding state can pass vertically, and between the pair of article placement portions. Is configured to place and support the article in a rolling restrained state in which the bottom of the article has entered.
The article support includes an article placement portion formed in a concave shape whose central side is lower than the outer side in a direction view along the direction of withdrawal, and the bottom of the article is provided on the article placement portion. It is configured to place and support the article in a rolling restrained state, and its first characteristic configuration is:
The article transfer means includes an article receiving body that receives a side portion of an article that is placed and supported by the article support in the retracted state as viewed in a direction along the direction of the article support. It is characterized by that.

That is, even if the article placed and supported by the retired article support rolls, it can be prevented that the article is received by the article receiving body and the trouble that the article falls from the article support.
In this way, it is possible to prevent an article from being dropped from the article support by receiving the article placed and supported by the retired article support by the article receiving body, so that the article transfer means is provided. When moving, it is possible to increase the speed from the stationary state to the steady movement speed, or decelerate from the steady movement speed to the creep speed, while increasing the amount of speed change per unit time. The speed of movement of the mounting means can be increased.

  Therefore, according to the 1st characteristic structure of this invention, it came to provide the article storage equipment which can aim at the speeding-up of the movement of an article transfer means in order to improve the conveyance efficiency of an article.

In addition to the first feature configuration, the second feature configuration in the article storage facility of the present invention,
The article receiver is arranged to receive the article at a position where the article returns to the center side of the placement surface by its own weight.

That is, when the article placed and supported by the retreated article support rolls and is received by the article receiver, the article returns to the center side of the placement surface of the article support by its own weight. Will move.
Thus, even if the article placed and supported on the article support in the retreated state rolls and is received on the article receiver, the article is placed on the article support. Therefore, it is not necessary to perform a special operation for returning the article placed on the article support to the proper placement state. .

  Therefore, according to the second characteristic configuration of the present invention, the article is placed on the article support without performing a special operation for returning the article placed on the article support to an appropriate placement state. Has led to the provision of an article storage facility that can be placed properly.

In addition to the first or second characteristic configuration described above, the third characteristic configuration in the article storage facility of the present invention is:
In conjunction with the withdrawal / retraction of the article placement body, there is provided a withdrawal / retraction interlocking means for withdrawing / retreating the article receiving body relative to an upper portion of the pair of left and right article placement portions.

  That is, since the article receiving body is withdrawn with respect to the upper part of the pair of left and right article placement portions of the article placement section in conjunction with the withdrawal of the article placement body, the article support is Even when the article is placed and supported in the protruding state, the article can be prevented from rolling and falling from the article support.

  Therefore, according to the third characteristic configuration of the present invention, in addition to the operational effects of the first or second characteristic configuration, the article rolls even when the article is placed and supported by the protruding article support. Therefore, the present invention has provided an article storage facility that can satisfactorily transfer the article to the storage unit.

Schematic plan view of goods storage facility Partially omitted side view of stacker crane Side view of the product transfer state Side view of the product transfer state Side view of the product transfer state Side view of the product transfer state Front view of the product transfer state Front view of the product transfer state Side view showing exit / exit drive structure

An embodiment of an article storage facility of the present invention will be described with reference to the drawings.
As shown in FIG. 1, a pair of article storages in which a plurality of storage units S for placing and supporting a columnar or cylindrical article B in a laterally inclined posture with its axial direction oriented in the depth direction are arranged side by side. The shelf 1 is installed with the front side of the article storage side facing each other, and a stacker crane K that travels in the article transport space F between the article storage shelves 1 is provided. The article storage facility for performing the warehousing work and the warehousing work is configured.

As shown in FIGS. 1 and 2, a traveling rail 2 and a ceiling rail 3 that guide the stacker crane K are installed along the longitudinal direction of the article storage shelf 1 on the floor and ceiling of the article transport space F. ing.
The stacker crane K includes a traveling carriage 4, a pair of front and rear posts 5 erected from the traveling carriage 4, and a connection frame 6 that connects upper ends of the posts 5, and the traveling carriage 4 travels. The upper and lower ends of the pair of front and rear posts 5 are configured to be guided by the ceiling rail 3.

A lifting platform 7 that can be moved up and down along a pair of front and rear posts 5 is provided, and on this lifting platform 7, an article transfer means M that transfers an article B to a storage portion S of the article storage shelf 1 is provided. Yes.
Accordingly, the article transfer means M is moved vertically and horizontally along the direction in which the storage sections S of the article storage shelves 1 are arranged in the article transport space F by running the stacker crane K and raising and lowering the lifting platform 7. It is comprised so that it may move to the position corresponding to the accommodating part S of the transfer object location, and the position corresponding to the loading / unloading station (not shown).

In the lifting platform 7, both front and rear end portions corresponding to the front-rear direction of the stacker crane K are suspended and supported by lifting wires 8.
The elevating wire 8 is wound around the upper driven pulley 9, the traveling cart side driven pulley 10, and the driving pulley 11.
An elevating electric motor 12 for driving and rotating the drive pulley 11 is provided, and the elevating wire 8 is moved in the longitudinal direction by driving the driving pulley 11 forward and backward by the elevating electric motor 12. Thus, the elevator 7 is configured to move up and down.

  The traveling carriage 4 is provided with two front and rear traveling wheels 13A and 13B that can travel on the traveling rail 2. Of the two traveling wheels 13A and 13B, the traveling wheel 13A on one end side in the longitudinal direction of the vehicle body is configured to be driven by the electric motor 14 for traveling, and the traveling wheel on the other end side in the longitudinal direction of the vehicle body. 13B is configured to be freely rotatable.

As shown in FIG. 9, the article transfer means M includes a fixed fork 15 fixed to the lifting platform 12, a secondary fork 16 retracted from the fixed fork 15, and an output from the secondary fork 16. It is configured as a three-stage fork device including the retracted primary fork 17, and an article support 17 </ b> A for placing and supporting an article is provided on the upper portion of the primary fork 17.
Incidentally, as shown in FIG. 7, the fixed fork 15 is formed in a U-shape and the secondary fork 16 is connected in a state where the left and right main bodies are connected to each other by a plate-like connection frame when viewed in the direction along the exit / retreat direction. Formed so as to be freely retractable inside the fixed fork 15, and the primary fork 17 is formed in a state in which the left and right main bodies are connected to each other by a plate-like connection frame, between the left and right main bodies of the secondary fork 16. Equipped with the ability to withdraw at the location corresponding to.

A pair of pinion gears 19 that mesh with a rack gear 18 fixed to the secondary fork 16, a drive gear 20 that meshes with the pair of pinion gears 19, and a retractable drive electric motor 21 that rotationally drives the drive gear 20. Is provided.
Further, a chain 23a for an exit / retreat operation that connects one end of the fixed fork 15 and one end of the primary fork 17 and is wound in a folded state by an idle pulley 22a at the other end of the secondary fork 16. And the other end part of the fixed fork 15 and the other end part of the primary fork 17 are connected to the other end part of the secondary fork part 16, and the chain 23b for retreating operation is wound around the idle pulley 22b at one end part of the secondary fork part 16. Is provided.

  Then, when the drive gear 20 is driven to rotate forward and backward by the electric motor 21 for moving in and out, and the pair of pinion gears 19 are driven to rotate forward and reverse, the meshing between the pair of pinion gears 19 and the rack gear 18 results in The secondary fork 16 is moved forward and backward with respect to the fixed fork 15, and the idle pulleys 22 a and 22 b move with the movement of the secondary fork 16. 23a and 23b are configured to be withdrawn from and retracted from the secondary fork 16.

That is, the article transfer means M has a retracted state in which the article support 17A, on which the article B can be placed and supported, is positioned in the article transporting space F, and a protruding state in which the article supporting body 17A projects into the storage portion S of the article storage shelf 1. In addition, the article support 17 </ b> A is configured to be raised and lowered by raising and lowering the lifting platform 7.
Then, in the state where the article transfer means M is located at a position corresponding to the storage section S to be transferred in the storage section S, the storage section S is moved by the withdrawal / retraction operation and the lifting / lowering operation of the article support 17A. The scooping process for taking out the article B placed and supported on the article support and the lowering process for accommodating the article B placed and supported on the article support 15 in the storage section S are performed.

  Incidentally, even when the article transfer means M is located at a position corresponding to the loading / unloading station, the article transfer means M is loaded on the loading / unloading station by its own lifting operation and lifting / lowering operation of the article support 17A. A scooping process for carrying in the article B that is placed and supported, and a lowering process for carrying out the article B placed and supported on the primary fork 17 to the loading / unloading station are performed.

As shown in FIGS. 7 and 8, the article support 17 </ b> A includes an article placement portion D formed in a concave shape whose central side is lower than the outer side in a direction view along the withdrawal / retreat direction. And the article B is placed and supported in a rolling restrained state in which the bottom of the article B is inserted into the article placing portion D.
That is, as shown in FIG. 1, the article support 17 </ b> A is formed in an elongated shape that is long along the direction of the primary fork 17 and has a quadrangular cross section, and is provided on the upper portion of the primary fork 17. ing. The upper surface of the article B is formed in a concave shape with the center side being lower than the outer side as the article placement portion D, and the article B is rolled in a rolling restrained state in which the bottom portion of the article B enters the upper surface. It is comprised so that it may mount and support in the suppression state.

As shown in FIGS. 1, 3, and 7, the article storage shelf 1 includes a set of support columns 25 that are erected in a state of being spaced apart in the front-rear width direction (depth direction). A plurality of storage portions S are formed in the vertical direction between pairs of columns 25 adjacent to each other in the shelf width direction.
In addition, in the figure, 25a is a reinforcement frame which connects the support | pillars 25 adjacent in the shelf width direction.

As shown in FIGS. 7 and 8, the storage portion S includes a pair of left and right article placement portions U positioned on both sides of an article support passage opening W through which an article support 17A in a protruding state can pass vertically. Thus, the article B is placed and supported in a rolling restrained state in which the bottom of the article B is inserted between the pair of article placing portions U.
That is, each of the pair of left and right article placement portions U is provided with a U-shaped arm 26 having a U-shape in plan view in a state where both ends are supported by columns 25 arranged in front and rear (see FIG. 1). ), A mountain-shaped article receiving material 27 is provided on the upper portion of the arm 26 in a direction view along the direction in which the article supporting body 17A moves out, and the article B is placed and supported by the article receiving material 27. It is configured.
A cushioning material 28 is provided at a place where the article receiving material 27 contacts the article B.

Therefore, the scooping process for taking out the article B stored in the storage section S by the article transfer means M is performed in the following procedure.
In a state where the retired article support 17A is stopped at a position corresponding to the storage portion S of the transfer target location (see FIG. 3), the article support 17A is placed and supported by a pair of left and right article placement portions U. It is made to project toward the lower part of the article B being used (see FIGS. 4 and 7).
Thereafter, the article support 17A is raised while passing through the article support passage opening W, whereby the article B placed and supported on the pair of left and right article placement portions U is changed to the article support article support 17A. The article is placed on and supported by the article placement portion D (see FIGS. 5 and 8), and then the article support 17A is withdrawn to a retracted state (see FIG. 6).

Further, the lowering process for storing the article B placed and supported on the article support 17A in the storage section S is performed according to the following procedure.
In a state where the retired article support 17A is stopped at a position corresponding to the storage portion S of the transfer target location (see FIG. 6), the article B placed and supported on the article support 17A is placed on a pair of left and right articles. The article support 17A is protruded in a protruding state so as to be positioned above the portion U (see FIGS. 5 and 8).
Thereafter, the article support 17A is lowered while passing through the article support passage opening W, whereby the article B placed and supported on the article placement portion D of the article support 17A is placed on the article placement in the storage portion S. The mounting portion U is placed and supported (see FIGS. 4 and 7), and then the article support 17A is retracted to the retracted state (see FIG. 3).

  Incidentally, in this embodiment, although detailed explanation is omitted, the stacker crane K is equipped with control means for controlling the operation, and the control means includes traveling of the traveling carriage 4, raising and lowering of the lifting platform 7, and By controlling the transfer operation of the article transfer means M, the scooping process and the unloading process of the article B are performed.

As shown in FIGS. 2 and 3, the article transfer means M of the article B that is placed and supported on the article support 17A in the retracted state as viewed in the direction of withdrawal of the article support 17A. A pair of left and right article receiving bodies 30 for receiving the side portions are provided.
In the present embodiment, the article receiving body 30 is made of a round bar, and is formed in a state slightly longer than the length of the article B in the axial direction as shown in FIG.
Further, as shown in FIG. 8, the article receiving body 30 is disposed so as to receive the article B at a position where the article B returns to the center side of the article placing portion D by its own weight.
Therefore, when the article B rolls and is received by the article receiving body 30, the article B is automatically returned to the state where it is placed and supported by the article placing portion D.

Further, as shown in FIGS. 3 to 9, the bowl-shaped support body 31 that supports the article receiving body 30 is an upper part of the secondary fork 16 in the article transfer means M, that is, the upper surfaces of the left and right main bodies in the secondary fork 16. It is attached to the part.
Accordingly, the article receiving body 30 is moved out of and with respect to the upper part of the pair of left and right article placement portions U in the storage section S in conjunction with the withdrawal and withdrawal of the article support 17A, and is shown in FIGS. As described above, even in the protruding state of the article support 17A, the article B is configured to exhibit an action of receiving the article B.
Incidentally, in this embodiment, the hook-shaped support body 31 attached to the secondary fork 16 is linked to the upper and lower positions of the pair of left and right article placement portions U in the storage section S in conjunction with the withdrawal and withdrawal of the article support body 17A. On the other hand, exit / exit interlocking means R for exiting and exiting is configured.

[Another embodiment]
Hereinafter, other embodiments are listed.
(A) In the above embodiment, the case where the article transfer means is mounted on the lifting platform of the stacker crane and the article support is lifted by lifting the lifting platform is exemplified. You may implement with the form which raises / lowers a goods support body by raising / lowering a transfer means.

(B) The article transfer means is provided with a long frame extending in the widthwise direction of the article storage shelf so as to be movable up and down, instead of being mounted on the stacker crane as in the above embodiment. You may implement in the form which equips a body with an article transfer means so that a movement in the longitudinal direction of a frame is possible.
In the case of this form, the lifting / lowering of the article support can be performed using the lifting / lowering of the frame, but the article support is lifted / lowered by raising / lowering the article transfer means relative to the frame. Also good.

(C) In the above embodiment, the case where the upper surface of the article support is formed in a recessed shape as the article placement portion of the article support is illustrated. For example, the article support is spaced between a pair of left and right support portions And a concave article placement portion whose center is lower than the outer side at the upper side portion of the pair of left and right support portions.

(D) In the above embodiment, in conjunction with the withdrawal / retraction of the article support, the exit / retraction interlocking means for moving the article reception body with respect to the upper part of the pair of left and right article placement portions is supported by the article reception body. Although the case where the body is configured by being attached to the secondary fork in the article transfer means is exemplified, various structures can be adopted as the exit / retreat interlocking means.
For example, in the above-described embodiment, the article receiving body is supported on the lifting platform so as to be movable in and out, and driving means for moving the article receiving body in and out is provided, and the driving means is synchronized with the withdrawal and withdrawal of the article support body. By actuating, the article receiving body can be configured to be withdrawn / withdrawn in conjunction with the withdrawal / withdrawal of the article support.
In this configuration, an exit / retreat operation electric motor for retracting / moving the article support may be used as drive means for driving the article receiving body to retract / retreat.

(E) In the above embodiment, the lateral width of the primary fork and secondary fork of the fork device constituting the article transfer means is formed larger than the lateral width of the article support passage opening, and the article support is formed from the upper part of the primary fork. Although the case of configuring in a form extending upward has been illustrated, for example, the width of the primary fork or the secondary fork is formed smaller than the width of the article support passage opening, and the article support is formed at the upper part of the primary fork. It can be implemented in the form.
In the case of this form, the primary fork and the secondary fork pass through the opening for passing the article support together with the article support.

DESCRIPTION OF SYMBOLS 1 Goods storage shelf 17A Goods support 30 Goods receiving body B Goods D Goods placement part F Goods conveyance space M Goods transfer means R Exit / retraction interlocking means S Storage part U Goods placement part W Goods support passage opening

Claims (3)

An article storage shelf in which a plurality of storage units for mounting and supporting a columnar or cylindrical article in a laterally inclined posture with its axial direction oriented in the depth direction, and a front side of the article storage shelf An article transfer means that is moved vertically and horizontally in the article transport space and transfers articles to the storage unit;
The article transfer means includes an article support body on which an article can be placed and supported in a retractable state positioned in the article transporting space and a protruding state protruding into the storage portion, and can be moved up and down. The article support is moved out and raised and moved up and down to remove the article placed and supported on the storage unit, and the article placed and supported on the article support is stored in the storage unit. Configured to perform the unloading process,
The storage portion includes a pair of left and right article placement portions located on both sides of an opening for passing the article support body through which the article support in the protruding state can pass vertically, and between the pair of article placement portions. Is configured to place and support the article in a rolling restrained state in which the bottom of the article has entered.
The article support includes an article placement portion formed in a concave shape whose central side is lower than the outer side in a direction view along the direction of withdrawal, and the bottom of the article is provided on the article placement portion. An article storage facility configured to place and support an article in a rolling restrained state,
The article transfer means includes an article receiving body that receives a side portion of an article that is placed and supported by the article support in the retracted state as viewed in a direction along the direction of the article support. Goods storage facility.   The article storage facility according to claim 1, wherein the article receiving body is disposed so as to receive the article at a position where the article returns to the center side of the article placing portion by its own weight.   The exit / exit interlocking means for retracting and retracting the article receiving body with respect to the upper part of the pair of left and right article placement portions in conjunction with the withdrawal and withdrawal of the article support is provided. Goods storage facility.

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