JPH11157641A - Slat conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a slat conveyor free to change over to a working state and to a non-working state by certainly synchronizing a plural number of change-over means to directionally turn a pressure shoe in simple structure. SOLUTION: A slat conveyor is furnished with a large number of pressure shoes 13 free to move along multiple slats 12, guided members 14, 15 continuously provided on the pressure shoes 13, a plural number of guide rails 17a to move the pressure shoes 13 along the slats 12 by guiding the guided members 14, 15 at article delivery points and a plural number of change-over means 17c provided in correspondence with each of the guide rails 17a to change over and move the guided members 14, 15 to the side of the guide rails 17a on the delivery points, and a plural number of the change-over means 17c corresponding to the guide rails 17a are changed over to a working state and a non-working state by one driving means 20.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plurality of slats on which articles are placed and which moves in the conveying direction, the slats being moved integrally with the slats, and being movable along the slats. A plurality of pressing shoes arranged in parallel with each other, a guided member connected to the pressing shoe, and at a carry-out location of the article, from one side of the slat to the other side along with the movement of the slat. A plurality of guide rails for guiding the guided members and moving the pressing shoe along the slats, and at each of the unloading points, a plurality of guided members for switching and moving the guided members to the guide rail side. Slat conveyor comprising a plurality of switching means provided correspondingly.

[0002]

2. Description of the Related Art In a slat conveyor as described above, conventionally, a plurality of switching means provided corresponding to a plurality of guide rails are provided with driving means such as cylinders and motors, respectively. Are driven in synchronization with each other, so that a plurality of switching means are simultaneously switched between an active state and a non-active state.

[0003]

However, in the prior art, a plurality of driving means are required corresponding to the plurality of switching means, which not only contributes to an increase in cost but also drives each driving means in synchronization. Therefore, there is a disadvantage that the control of switching between the active state and the non-active state becomes complicated.

The present invention has been made in view of such a point, and an object of the present invention is to switch a plurality of switching means between an operating state and a non-operating state with a simple structure and in a surely synchronized state. The object is to provide a slat conveyor that can be switched.

[0005]

According to the first aspect of the present invention, a plurality of guide rails are provided corresponding to a plurality of guide rails for moving a pressing shoe along a slat. The switching means is switched between the operating state and the non-operating state by one driving means, so that a plurality of switching means are provided in correspondence with each of the plurality of switching means. do it,
The number of driving means can be reduced, the structure can be simplified and the cost can be reduced, and by switching a plurality of switching means with one driving means, the synchronous switching control of each switching means is also easy, and Be certain.

According to the second aspect of the present invention, since the pressing shoes are provided corresponding to each of the slats, even a relatively small article can be pressed out by the pressing shoes. Moreover, since the plurality of guide rails are provided at substantially the same interval as the interval between the slats adjacent to each other in the slat transport direction, the article is pressed with as many pressing shoes as possible to reduce the posture disorder. It is possible to carry out the article in a small amount in an orderly manner.

According to the third aspect of the present invention, the guided member is rotatably mounted around a pin provided below the pressing shoe and around the axis of the pin, and is guided by the guide rail. Each pressing shoe can be smoothly moved by the relative rotation of the guide roller with respect to the guide rail. And
The switching means includes an inclined guide surface that contacts the pin portion projecting downward from the guide roller with the movement of the pressing shoe in the operation state, and guides the guide roller toward the guide rail. Therefore, the switching between the operating state and the non-operating state of the inclined guide surface can be quickly performed. For example, when the inclined guide surface is moved in a direction perpendicular to the axis of the pin to switch between an active state and a non-active state, the case where the inclined guide surface is directly brought into contact with the guide roller, and the case where the inclined guide surface is brought into contact with the pin portion. In case of
Due to the difference in diameter between the guide roller and the pin, the amount of movement of the inclined guide surface can be reduced by bringing the pin into contact with the pin portion, and switching can be performed more quickly by that amount.

According to the fourth aspect of the present invention, in the operating state, the switching means contacts the guided member with the movement of the pressing shoe, and moves the guided member toward the guide rail. Since it has an inclined guide surface for guiding and the inclined guide surface is held by the guide rail,
For example, the inclined guide surface is provided on a guide rail, and the entire guide rail is moved to switch between an active state and a non-active state, or a part of the guide rail is configured to be movable, and the movable guide rail is provided. By providing the inclined guide surface in the portion, the inclined guide surface can be shared by the guide rail, and the structure can be simplified.

According to the fifth aspect of the present invention, the switching means has a rotating claw which is rotated toward the guide rail by the contact of the guided member accompanying the movement of the pressing shoe in the operating state. Since the guided member is switched to the guide rail side by the rotating action of the rotating claw,
The guided member can be reliably moved to the guide rail side by the rotating action of each rotating claw.

[0010] According to the invention described in claim 6, the pressing shoe is provided with a sprocket which is rotatable about an axis extending vertically along a lower portion of the pressing shoe, and is disposed at a position eccentric from the axis of the sprocket. A guide member is provided, and the switching means is constituted by a single chain engaged with a sprocket, and in an operating state in which the chain is engaged with the sprocket, the sprocket rotates around the axis. Accordingly, the guided member is switched to the guide rail side, so that the guided member can be reliably moved to the guide rail side by the rotation of each sprocket by engagement with the chain.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A slat conveyor according to the present invention will be described with reference to the drawings based on an example in which the slat conveyor is applied to an automatic warehouse.
In such an automatic warehouse, as shown in FIG. 1, a pair of article storage shelves 1 are installed with their fronts facing each other, and a plurality of paired article storage shelves 1 are installed in parallel, A stacker crane 2 that is movable along the frontage of the article storage shelf 1 is provided between each pair of the article storage shelves 1. Each stacker crane 2 is provided with an elevating platform having a fork that can move in and out, and a container that stores various articles by the self-propelled operation of the stacker crane 2 and the up and down movement of the elevating platform, and the operation of fork moving in and out. An article A such as a cardboard box or a cardboard box can be placed and carried into or out of the article storage section of the article storage shelf 1.

A carry-in slat conveyor 3 for carrying in an article A is provided on the carry-in side of each article storage shelf 1, and between each pair of the article storage shelves 1 and the carry-in slat conveyor 3 is provided.
Each carry-in conveyor 4 is provided, and each carry-in conveyor 4 is provided.
Is provided with a carry-in lifter 5 for transferring the articles A to and from the stacker crane 2. As shown in FIG. 2, the carry-in conveyor 4 has two kinds of carry-in conveyors having different structures, and one of them is an orthogonal carry-in machine which carries the articles A in a direction substantially perpendicular to the carrying direction of the carry-in slat conveyor 3. The other conveyor 4a is an oblique-type conveyor 4b that conveys the articles A while curving obliquely forward with respect to the conveyance direction of the input slat conveyor 3.

That is, each article A has a rectangular shape in a plan view, and when the rectangular article A is stored in the article storage shelf 1, in principle, it is stored vertically in the stacker crane 2 side. It is configured. But,
Depending on the conditions of the building of the automatic warehouse, it may be disadvantageous to store all the articles A in the same orientation and all the articles A in the vertical orientation. In this embodiment, as shown in FIG. 1, since there are a plurality of pillars P in the center of the building, if all of the articles A are to be stored vertically, the pillars P are in the way and a space near the pillars P is obstructed. Occurs, and the product storage shelf 1
Will be reduced. Therefore, by utilizing the space, a pair of article storage shelves 1b for storing the articles A in a horizontal direction as viewed from the stacker crane 2 is provided, and the stacker crane 2 is provided between the pair of article storage shelves 1b. For the same reason, a pair of article storage shelves 1b for storing the articles A in the horizontal direction is provided near the right wall of the building.

As described above, there are two types of article storage shelves 1, an article storage shelf 1 a for storing articles A vertically and an article storage shelf 1 b for storing articles A in a horizontal direction. A conveyor for carrying the articles A into the shelf 1a is constituted by an orthogonal carrying conveyor 4a, and the articles A conveyed vertically by the carrying slat conveyor 3 are transferred to the orthogonal carrying conveyor 4a in the same posture, It is configured to be conveyed horizontally by an orthogonal carry-in conveyor 4a. On the other hand, the carry-in conveyor for carrying the goods A into the goods storage shelf 1b for storing the goods A in the horizontal direction is constituted by an oblique-type carry-in conveyor 4b, and gradually changes the posture of the goods A transported in the vertical direction by the carry-in slat conveyor 3. The article A is configured to be transported in a vertical orientation.

An unloading slat conveyor 6 for unloading the articles A is provided on the unloading side of each article storage shelf 1, and between each pair of the article storage shelves 1 and the unloading slat conveyor 6 is provided.
Each of the unloading conveyors 7 is provided.
A transport lifter 8 for transferring the articles A to and from the stacker crane 2 is provided at the start end in the transport direction. There are also two types of unloading conveyors 7, one of which conveys the article A in a horizontal direction as shown in FIG.
An orthogonal type conveyor 7a for transferring articles A in a horizontal direction from a direction substantially orthogonal to the article storage shelves 1a for storing the articles A vertically. The other one conveys the article A vertically and obliquely obliquely to the unloading slat conveyor 6, and gradually changes the attitude of the article A so as to be vertically with respect to the unloading slat conveyor 6. Oblique type conveyor 7b to be transferred
It is provided corresponding to the article storage shelf 1a that stores the article A in the horizontal direction.

The carry-in slat conveyor 3 and the carry-out slat conveyor 6 have the same structure. As shown in FIGS. 4 and 5, a pair of left and right frames 9 are provided when viewed from the conveying direction. A driving sprocket and an idle sprocket are provided at both ends. A pair of left and right endless chains 10 is wound around the two sprockets, and the driving sprocket is driven by the electric motor 11 to thereby form a pair of left and right chains 10.
Is driven to rotate in the transport direction above the frame 9. Below the frame 9, the chain 10 is configured to rotate in the direction opposite to the direction above the frame 9. A plurality of elongated slats 12 are attached between the pair of left and right chains 10, and a pressing shoe 13 for pressing the article A and pressing and transferring it to the carry-in conveyor 4 side is integrated with each slat 12. Is movably fitted to the outside. Below each pressing shoe 13, a pin 14 as a guided member is protruded, and a guide roller 15 also as a guided member is provided on the pin 1.
4 is mounted so as to be freely rotatable around the axis and
4 is configured such that the lower end portion protrudes below the guide roller 15.

As shown in FIGS. 6 and 7, a pair of main guides 16 for guiding the guide rollers 15 of the pressing shoes 13 are provided inside the pair of left and right frames 9 along the chain 10. I have. A pair of left and right main guides 16
6 and at the unloading location of the article A, as shown in FIG. 6, the two main guides 16 are obliquely connected to each other as a plurality of guide rails in a state corresponding to each of the orthogonal loading conveyors 4a. An orthogonal branch guide 17a is provided, and the plurality of orthogonal branch guides 17a are provided at substantially the same interval as the interval between the slats 12 adjacent to each other in the transport direction of the slat conveyor 6. Further, as shown in FIG. 7, one oblique branch guide 18a is provided in a state where the two main guides 16 are diagonally connected to each other at the discharge position of the article A corresponding to each oblique type carry-in conveyor 4b. Further, below the main guide 16, both main guides 16
Is provided with a single return guide 19 for connecting diagonally. Therefore, of the pair of left and right main guides 16,
One is provided along the entire length of the endless chain 10, and the other is provided along the chain 10 located above and ends at the return guide 19 (see FIG. 4).

In the vicinity of the orthogonal branch guide 17a,
The plurality of guide rollers 15 guided by the main guide 16
Direction as a switching means provided with an inclined guide surface 17d which contacts the pin 14 and guides the guide roller 15 toward the orthogonal branch guide 17a in order to change the direction at once to the orthogonal branch guide 17a. A plurality of members 17c are provided corresponding to the orthogonal branch guide 17a. The plurality of direction changing members 17c are integrally attached to the orthogonal direction changing device 17b,
Is configured to be able to move back and forth by one orthogonal air cylinder 20a as the driving means 20, and a plurality of pressing shoes 13 are carried in by a direction changing member 17c provided with an inclined guide surface 17d, an orthogonal direction changing tool 17b, and the like. An orthogonal switching means 17 for switching the slat conveyor 3 substantially linearly along the conveying direction is provided.

More specifically, the orthogonal direction changer 1 will be described.
7b, a plurality of direction changing members 17c are provided integrally,
A plurality of direction change members 17c are configured to operate integrally with each other via the orthogonal direction change tool 17b as the orthogonal air cylinder 20a moves back and forth. Also, in the vicinity of the oblique branch guide 18a. Divides the plurality of guide rollers 15 guided by the main guide 16 into oblique branch guides 18a.
Oblique direction changer 18b for sequentially turning to the side
Are configured to be able to move back and forth by the oblique air cylinder 21. That is, the oblique switching means 18 for switching the plurality of pressing shoes 13 so as to sequentially cross the conveying direction of the carry-in slat conveyor 3 by the oblique branch guide 18a, the oblique direction changing tool 18b, and the like. Have been.

The carry-in slat conveyor 3 and the carry-out slat conveyor 6 are constructed as described above, and when the pair of right and left chains 10 is driven to rotate by the driving sprocket, each slat 12 and a pressing shoe fitted externally thereto. 13
Is also driven to rotate together with the chain 10, and conveys the articles A placed on the slats 12. When the article A is transferred onto the orthogonal carry-in conveyor 4a, the orthogonal air cylinder 20a is used.
The plurality of direction changing members 17c are integrally protruded toward the main guide 16 via the orthogonal direction changing tool 17b, and are located below the pins 14 that support the plurality of guide rollers 15 that have moved along the main guide 16. A plurality of the projecting portions come into contact with and guide the inclined guide surface 17d of each of the direction change members 17c, and the plurality of guide rollers 15
The direction is changed to a side.

That is, only by driving the orthogonal air cylinder 20a, the plurality of direction changing members 17c are integrally operated, and the plurality of guide rollers 15 are connected to the orthogonal branch guide 17a.
You can turn to the side at the same time. Then, due to the movement of each slat 12 in the transport direction and the guide action of the orthogonal branch guide 17a to each guide roller 15, the plurality of pressing shoes 13 are moved in the transport direction of the slat conveyors 3, 6 as shown in FIG. The article A is pressed and transferred to the orthogonal carry-in conveyor 4a in a state where the article A is substantially linear.

When the articles A are transferred to the oblique type carry-in conveyor 4b, the oblique air cylinder 21 projects the oblique direction changing tool 18b toward the main guide 16 side. The pins 14 that support the plurality of guide rollers 15 that have moved along are guided by contacting the oblique direction changer 18b, and are sequentially turned to the oblique branch guide 18a side. Then, the slats 12 move in the transport direction and the oblique branch guides 1 with respect to the guide rollers 15.
As shown in FIG. 9, a plurality of pressing shoes 13 press the articles A in a state of sequentially crossing the conveying direction of the slat conveyors 3 and 6 by the guiding action of 8a and the oblique type carrying conveyor 4b. Transfer. Thereafter, the pressing shoe 13 used for transfer to the orthogonal carrying conveyor 4a or the oblique carrying conveyor 4b is returned to the original main guide 16 side by the return guide 19.

As described above, since each pressing shoe 13 is also used for branch transfer to the orthogonal carrying conveyor 4a and the oblique carrying conveyor 4b, as shown in FIG. Orthogonal pressing surface 22a which presses when transferring to mold carrying conveyor 4a, and oblique type carrying conveyor 4b
And an oblique pressing surface 22b that presses when transferring the image to the printer.

The orthogonal carrying conveyor 4a, the oblique carrying conveyor 4b, and the oblique carrying conveyor 7b include:
The oblique type conveyor 4b and the oblique type unloader 7b have the same structure except that the conveying direction is different. A plurality of oblique rollers 23 having different lengths are arranged so as to be greatly curved while gradually changing the angle,
In addition, the oblique rollers 23 are configured to be rotationally driven by an electric motor (not shown) in synchronization with each other. On the other hand, as shown in FIG. 8, the orthogonal type conveyor has a plurality of orthogonal rollers 24 having different lengths arranged so as to change the angle rapidly.
4 is also configured to be rotationally driven by an electric motor (not shown) in synchronization with each other.

As shown in FIG. 11, the orthogonal discharge conveyor 7a has a first roller conveyor 25 having a plurality of rotationally driven rollers and a second roller conveyor 26 having a plurality of idle rollers. The second roller conveyor 26 is provided with a horizontally long pressing member 27 that moves along the conveying direction of the unloading slat conveyor 6 and presses the article A.
Further, the pressing member 27 is provided with a pressing body 28 which moves along the longitudinal direction and presses the article A.
Then, when the article A is sent from the first roller conveyor 25, the pressing member 27 moves in the transport direction of the unloading slat conveyor 6, and the pressing body 28 moves along the pressing member 27 to the unloading slat conveyor. Move to side 6. Therefore, the article A is transferred onto the unloading slat conveyor 6 at a speed synchronized with the transport speed of the unloading slat conveyor 6 across the second roller conveyor 26 diagonally as indicated by an arrow in FIG. It is configured to be.

The operation of the automatic warehouse having the above configuration is controlled by a control device H using a microcomputer. As shown in FIG. 12, the control device H is configured to be able to communicate with a stacker crane control unit H <b> 1 that controls each stacker crane 2, and based on a command from the operation device 29, the orthogonality of each slat conveyor 3, 6. By controlling the operation of the air cylinder 20a and the oblique air cylinder 21, the switching control of the orthogonal switching means 17 and the oblique switching means 18 is executed.

The control operation of the automatic warehouse by the control device H will be described. When carrying in the article A, information about the article A to be carried in is input to the operation device 29. Based on the input information, the control device H causes the article storage shelf 1 to carry in the article A and the article storage section thereof. And Then, when the article A conveyed by the carry-in slat conveyor 3 reaches a predetermined position with respect to the carry-in conveyor 4 corresponding to the article storage shelf 1 to be carried in, the article A based on a signal from the unoccupied load detection means (not shown). The switching means 17 and 18 are switched and controlled.

That is, if the carry-in conveyor 4 is an orthogonal carry-in conveyor 4a, a plurality of direction changing members 17c are made to protrude toward the main guide 16 through the orthogonal direction changing tool 17b by the orthogonal air cylinder 20a. Then, the guide rollers 15 of the predetermined number of pressing shoes 13 are turned from the main guide 16 toward the orthogonal branch guide 17a.
Then, in a state where the predetermined number of pressing shoes 13 are linearly formed along the carrying direction of the carry-in slat conveyor 3, the articles A are pressed and branched and transferred to the orthogonal carry-in conveyor 4a.
Further, in the case of the oblique type conveyor 4b, the oblique air cylinder 21 causes the oblique direction changing tool 18b to protrude toward the main guide 16, and a predetermined number of pressing shoes 13 are moved in the conveying direction of the incoming slat conveyor 3. The object A is sequentially moved obliquely in a crossing manner, and the oblique type carry-in conveyor 4 is pressed by pressing the article A.
b.

When the article A reaches the carry-in lifter 5, the carry-in lifter 5 is raised based on a signal from the presence detection means, and the article A is scooped by the fork of the stacker crane 2. Thereafter, the fork of the stacker crane 2 is retracted, the article A is transferred onto the lift of the stacker crane 2, the self-propelled movement of the stacker crane 2 and the vertical movement of the lift,
In addition, the article A is placed on the article storage section of the article storage shelf 1 by the withdrawal operation of the fork. At this time, if the article storage shelf 1 is the article storage shelf 1a that stores the article A in the vertical direction, the article A is set in the vertical direction, and if the article storage shelf 1b stores the article A in the horizontal direction, the article A is set in the horizontal direction. And the loading operation of the article A is completed.

In the case of unloading the article A, information relating to the article A to be unloaded is input to the operation device 29. Based on the input information, the control device H causes the article storage shelf in which the article A to be unloaded is stored. 1 and the article storage section are selected. Then, contrary to the above-described carrying-in work, the stacker crane 2 carries out the article A from the article storage section of the selected article storage shelf 1 and transfers it to the carry-out lifter 8. Thereafter, the carry-out lifter 8 is lowered and transferred onto the carry-out conveyor. At this time, if the carry-out conveyor 7 is an orthogonal carry-out conveyor 7a, the pressing member 27 is provided on the basis of a signal from unshown load detecting means provided on the second roller conveyor 26.
And the pressing body 28 are simultaneously operated, and the article A is carried out onto the carry-out slat conveyor 6 in synchronization with the carrying speed of the carry-out slat conveyor 6. The unloading conveyor 7
However, if the oblique type carry-out conveyor 7b, the goods A are carried out onto the carry-out slat conveyor 6 while the posture of the goods A is gradually changed. The product A
Is carried out to a predetermined place by the switching operation of the orthogonal switching means 17 and the oblique switching means 18 provided on the unloading slat conveyor 6, and the unloading operation is completed.

[Another Embodiment] (1) In the above embodiment, the orthogonal direction changing tool 17b integrally provided with a plurality of direction changing members 17c is protruded toward the main guide 16 to move the guide roller 15 to the orthogonal direction. Although the direction was changed to the branch guide 17a side, FIG.
As shown in FIG. 3, a part of the plurality of orthogonal branch guides 17a on the side of the main guide 16 is replaced with each orthogonal branch guide 17a.
Can be slidably held, and a slidable part thereof can be used as the switching means 17e. In this case, each switching means 17e is provided with an inclined guide surface 17d,
Further, each switching means 17e is connected to the branch guide connecting member 30.
The branch guide connecting member 30 is slid toward the main guide 16 by one orthogonal branch guide moving air cylinder 20b as the operating means 20 as shown in FIG. Then, the guide roller 15 moved along the main guide 16 is brought into contact with the inclined guide surface 17d to change the direction toward the orthogonal branch guide 17a.
In this embodiment, the orthogonal branch guide 17a is used.
It is also possible to provide an inclined guide surface 17d on the side of the main guide 16 so that the whole of the orthogonal branch guides 17a slides integrally.

(2) In the embodiments described above, the plurality of guide rollers 15 are configured to change the direction toward the orthogonal branch guide 17a by the guide action of the inclined guide surface 17d. You may comprise. That is, FIG.
As shown in FIGS. 4 and 15, a turning claw 31 is provided as switching means for turning to the orthogonal branch guide 17 a side by contact of the guide roller 15, and a plurality of the turning claws 31 are connected to the turning claw. The rotating claw connecting member 32 is integrally held by a member 32, and can be switched between an upper working position and a lower non-working position by an orthogonal rotating claw operating air cylinder 20c as the driving means 20. It is composed. And
In the non-operating state in which the rotating pawls 31 are located below, the rotating pawls 31 are in the state shown in FIG. 14A or FIG. 15A. As the claw 31 moves upward, the action of the rotating groove 33 associated with the upward movement causes (b) in FIG.
5 to rotate to the state shown in (b) and project toward the main guide 16 side. In this operation state, when the plurality of guide rollers 15 that have moved along the main guide 16 abut against the respective rotating claws 31, the rotating claws 31 rotate toward the orthogonal branch guide 17a against a spring (not shown). Moving and rotating groove 3
The guide roller 15 moves downward by the action of 3, and the direction of each guide roller 15 is changed from the main guide 16 side to the orthogonal branch guide 17a side.

(3) Further, instead of the above configuration, the following configuration may be adopted. That is, as shown in FIGS. 16 and 17, the direction changing sprocket 34 and the arm 35, which are rotatable around the axis of the pin 14 protruding below each pressing shoe 13, are attached to the arm 3.
A guide roller 15 may be attached to the end of the fifth roller 5. In this case, the direction changing sprocket 34
One of the direction changing chains 36 which engages with the main body 16 is provided so as to be able to move back and forth toward the main guide 16 by a sprocket moving air cylinder 20d as the driving means 20. In the operation state protruding toward the guide 16, each direction changing sprocket 3
4 engages with the direction change chain 36, the direction change sprocket 3
4 rotates, and with the rotation, the arm 35 and the guide roller 15 attached to the arm 35 also rotate integrally,
As shown in FIG. 16B, each guide roller 15 is turned to the orthogonal branch guide 17a.

[Brief description of the drawings]

FIG. 1 is an overall plan view of an automatic warehouse.

FIG. 2 is a perspective view of a carry-in slat conveyor and a carry-in conveyor.

FIG. 3 is a perspective view of an unloading slat conveyor and an unloading conveyor.

FIG. 4 is a cross-sectional view of a slat conveyor.

FIG. 5 is a partially cutaway perspective view of a slat conveyor.

FIG. 6 is a plan view of a main part of the slat conveyor.

FIG. 7 is a plan view of a main part of the slat conveyor.

FIG. 8 is a plan view of a carry-in slat conveyor and a carry-in conveyor.

FIG. 9 is a plan view of a carry-in slat conveyor and a carry-in conveyor.

FIG. 10 is an explanatory view of a pressing shoe.

FIG. 11 is a plan view of an unloading slat conveyor and an unloading conveyor.

FIG. 12 is a schematic block diagram of a control device.

FIG. 13 is a plan view of a main part of a slat conveyor showing another embodiment.

FIG. 14 is a plan view of a main part of a slat conveyor showing another embodiment.

FIG. 15 is a cross-sectional view of a main part of a slat conveyor showing another embodiment.

FIG. 16 is a plan view of a main part of a slat conveyor showing another embodiment.

FIG. 17 is a sectional view of a main part of a slat conveyor showing another embodiment.

[Explanation of symbols]

 Reference Signs List 12 Slat 13 Pressing shoe 14 Pin as guided member 15 Guide roller as guided member 17a Guide rail 17c Switching means 17d Inclined guide surface 20 Driving means 31 Rotating claw as switching means 35 Sprocket 36 Chain as switching means A Goods

Claims (6)

[Claims] 1. A plurality of slats on which articles are placed and moved in a transport direction, and a plurality of slats which move integrally with the slats and are arranged in the transport direction so as to be movable along the slats. Pressing shoe, a guided member connected to the pressing shoe, and guides the guided member from one side of the slat to the other side with the movement of the slat at the unloading point of the article. A plurality of guide rails for moving the pressing shoe along the slats, and a plurality of guide members are provided corresponding to each guide rail for switching and moving a plurality of guided members to the guide rail side at the unloading point. A slat conveyor provided with a plurality of switching means, wherein a plurality of switching means corresponding to the plurality of guide rails are in an operating state and a non-operating state by one driving means. Slat conveyors that are adapted to be switched to. 2. The pressure shoe is provided corresponding to each of the slats, and the plurality of guide rails are
2. The slat conveyor according to claim 1, wherein the slat conveyor is provided at substantially the same interval as the interval between adjacent slats in the slat transport direction. 3. The member to be guided, comprising: a pin provided below the pressing shoe; and a guide roller rotatably mounted around an axis of the pin and guided by the guide rail. The switching means includes an inclined guide surface that contacts the pin portion projecting below the guide roller with the movement of the pressing shoe in the operation state, and guides the guide roller toward the guide rail. The slat conveyor according to claim 1 or 2, wherein: 4. The switching means includes an inclined guide surface which contacts the guided member with the movement of the pressing shoe in the operation state and guides the guided member toward the guide rail. 3. The slat conveyor according to claim 1, wherein said inclined guide surface is held by said guide rail. 5. The switching means includes, in the operating state, a rotating claw that rotates toward the guide rail when the guided member comes into contact with the movement of the pressing shoe, and the rotating claw rotates. The slat conveyor according to claim 1 or 2, wherein the guided member is switched to the guide rail for operation. 6. The pressing shoe further includes a sprocket rotatable about an axis extending in a vertical direction below the pressing shoe, and the guided member is provided at a position eccentric from the axis of the sprocket, and The switching means is constituted by one chain engaged with the sprocket, and in an operation state in which the chain is engaged with the sprocket,
3. The slat conveyor according to claim 1, wherein the guided member is switched to the guide rail side as the sprocket rotates around the axis.