JP2001039505A - Pusher device for cargo - Google Patents

Abstract

PROBLEM TO BE SOLVED: To miniaturize a platform provided with a pusher device for pushing a cargo onto a temporary storage shelf for warehousing. SOLUTION: A carrying roller 34 group for transferring a cargo W are arranged on a frame 33 of a platform 24 adjacent to one side of temporary storage shelves 20 for warehousing for an automated storage and retrieval system, while a pusher roller 52 is attached to the tip end of a pair of arms 51, 51 disposed on the right and left outsides of the frame 33 and extended in the transfer direction of the cargo W. A hoisting moving guide means 53 is prepared, with which first, while both arms 51, 51 are advanced/retreated in the transfer direction by a driving means 54, a pusher roller 52 at an initial position falls down in the midst of the carrying roller 34 group to take a flat attitude, and, as the arms 51 advance in the transfer direction, both arms 51, 51 rotate diagonally upward so that the pusher roller 52 rises above the upper surface of the carrying roller 34 group. Next, with the pusher roller 52 at the raised position and in a horizontal state, the cargo W is pushed out of the frame 33, skipping over the carrying roller 34 group.

Description

DETAILED DESCRIPTION OF THE INVENTION

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a load pusher device in an automatic warehouse or the like.

2. Description of the Related Art For example, in Japanese Patent Application Laid-Open No. 1-303210, as a pusher device provided on an elevator for loading and unloading luggage to a temporary storage shelf for luggage at the entrance of an automatic warehouse, the upper surface of the elevator is provided with a temporary luggage storage. A roller group in which cylindrical rollers and taper rollers whose axes extend in the lateral direction of the shelf is alternately provided, and these rollers are driven to receive the baggage from the outside to the elevator. The lift platform is provided with a pusher that moves forward and backward in the direction of the axis of the roller, and pushes the luggage on the roller group along the axis in the direction of the luggage temporary storage shelf. This pusher device includes a pair of guide rods extending parallel to the axis of the roller, a base fitted to the guide rods so as to be able to move forward and backward, and a guide rod extending along a direction along the guide rods on the lower surface side of the lift table. It consists of a pair of chain sprockets and a chain wound around the chain. The base is connected to the middle of the chain, and the base has a pusher body for pushing out a load in the axial direction of the roller on the upper surface side of the roller. This is a configuration that is arranged so as to straddle a plurality of roller groups. Therefore, in order to receive the luggage from the outside to the elevator, the pusher body is temporarily retracted to the outside of the end of the roller group (the side far from the side surface of the temporary storage shelves for storage), and the pusher body is moved to the roller group. After the is loaded, the side surface of the luggage is pushed by the pusher body and pushed out toward the luggage temporary storage shelf.

However, in the prior art, since the pusher device is configured to push the load in a direction perpendicular to the rotation direction of the roller group, there is a problem that resistance to push the load increases. In addition, as described above, it is necessary to provide a space for retracting the pusher body on the elevating platform, and furthermore, the pusher body is advanced with respect to the base in order to push the luggage to the middle upper surface of the temporary storage shelf for storage. When displaced in the direction, the evacuation distance is increased by the displacement length, and there is a problem that the elevator is bulky and large. The present invention has been made to solve these conventional problems, and has as its object to provide a compact pusher device.

According to a first aspect of the present invention, there is provided a pusher device comprising: A pair of arms arranged at an outer position and extending in the transfer direction of the load, a pusher body attached to the distal ends of the two arms, a driving means connected to the two arms and moving forward and backward along the transfer direction, The pusher body is disposed on the left and right sides of the underframe, and in an initial position, the pusher body is in a prone position to sink at a storage location in the middle of the transport roller group. Both arms rotate obliquely upward so as to rise upward, and then push the luggage out of the underframe beyond the transport roller group while the pusher body in the upright position remains substantially horizontal. It is obtained by a relief movement guide means for Suyo. According to a second aspect of the present invention, in the pusher device for a luggage according to the first aspect,
The undulating movement guide means includes a first guide rail and a second guide rail that are disposed on both left and right sides of the underframe and extend along the transfer direction.
The two guide rails are formed substantially linearly so as to guide the rotation center roller in the middle part in the longitudinal direction along the transfer direction, and the second guide rail is a regulating roller mounted below the rotation center roller. To extend along the transfer direction, and the pusher body is in a prone position in which the pusher body sinks at a storage location in the middle of the conveyance roller group, and the pusher body is displaced upward. A transition portion for rotating the arm obliquely upward, and an extrusion portion for sequentially moving the pusher body at a standing position above the upper surface of the transport roller group in the transport direction of the load while keeping the pusher body in a substantially horizontal state, are sequentially formed. Is what it is. According to a third aspect of the present invention, in the baggage pusher device according to the first or second aspect, the pusher body is a roller body that slidably contacts a back surface in the transport direction of the package.

Next, embodiments of the present invention will be described. FIG. 1 is a schematic side view of a unit warehouse in an automatic warehouse according to the present invention, FIG. 2 is a plan view of the unit warehouse, FIG. 3 is a schematic plan view of a transfer device, and FIG. FIG. 9 is a perspective view showing a frame such as a table shelf and a column post or the like in an elevating mechanism. FIG. 9 is a schematic side view of a pusher device. As shown in FIGS. 1 and 2, the unit warehouse 1 includes a pair of hangars 2 and 2 arranged opposite to each other. Each hangar 2 is provided with multi-tiered shelves 3 supported by frame supports 4 and cross beams 5 and the like. Each shelf 3 has a number of frontage storage areas 6 in which luggage W can be stored in a horizontally long direction,
They are arranged in a line. On the opposite side of the pair of storage warehouses 2, 2, a pair of horizontal support rails 8, 8 are provided along the open side of the row of shelves for each of the three stages of shelves. The transfer device 7 is mounted on the rails 8 and 8 and is reciprocally movable in the horizontal direction. As shown in FIG. 3, each transfer device 7 has a cart 9 having a substantially rectangular shape in plan view.
And wheels 1 provided at both ends of a pair of front and rear axles 11 rotatably supported by a bogie 9 via bearings 10.
2, a wheel motor 13 for driving the one axle 11, and a pair of pickers 14a, 1 configured to be able to move back and forth in a direction orthogonal to the moving direction of the transfer device 7 in plan view.
4b, one of the pickers 14a is fixed to the bogie so that a load W having an arbitrary width wo can be inserted between the pair of pickers 14a and 14b. The other picker section 14b is configured to be moved by the width adjustment drive motor 18 with respect to the one picker section 14a. A pair of double-acting moving arms 15, 15 in both picker sections 14 a, 14 b are driven by a single drive motor so as to move out and back from the location of the trolley 9 in a direction orthogonal to the moving direction of the transfer device 7 in plan view. Synchronous operation is performed at 16. Pickers 17 for pushing and pulling the luggage W are provided at both ends of each moving arm 15 so as to be horizontally rotatable about a vertical axis 17a, and the pickers 17 are horizontally opened and closed by an actuator such as an electromagnetic solenoid (not shown). It is configured as follows. Therefore, luggage W is put in and out of each of the storage areas 6 and a temporary storage shelf 20 and a temporary storage shelf 21 to be described later for each of the opposing shelves of the pair of storage warehouses 2 and 2. Can be. The storage unit 22 for storing luggage into the transfer device 7 and the storage unit 23 for unloading are one end of the pair of storage warehouses 2 and 2 in the longitudinal direction,
The transfer device 7 is disposed so as to face each other across the moving end (see FIG. 2). The storage unit 22 is provided for each shelf in the same row as the shelf 3, and temporarily loads luggage W from being sent from the platform 24 to being taken into the transfer device 7. Storage shelves 20 for storage. The platform 24 moves up and down as will be described later, and the storage conveyor 1 at an appropriate height position.
9 can receive the luggage W to be stored. On the other hand, the shelves 3 are also provided in the shelving section 23 in the same row as the shelves 3 and are provided for each shelf stage. And a temporary storage shelves 21 for placing on the shelves (see FIG. 2). In the temporary storage shelves 21 in each shelf, a conveyor belt conveyor (not shown) provided in the shelves 21 is provided.
Is transported to the exit elevator 25 that has been moved up and down to the shelf position. The retrieval elevator 25 is moved up and down along a pair of column posts 26, 26 erected on both left and right sides (both sides orthogonal to a plan view across the transfer direction of the load W in the retrieval elevator 25). The luggage W is transferred by driving the roller conveyor in the unloading elevator 25 to the unloading conveyor 27 arranged at an appropriate height position, and the transferred luggage W is transported out of the automatic warehouse. . Next, the arrangement and configuration of the storage temporary storage shelf 20 and the platform 24 will be described in detail with reference to FIGS. As shown in the perspective view of FIG. 4, the storage temporary storage shelf 20 is located at one end in the longitudinal direction of one storage warehouse 2 and is the outermost end of the storage area 6 arranged in a line. Area 6a (FIG. 4)
), And a shelf plate 28 made of a flat steel plate or the like is stretched. On one side of the storage temporary storage shelf 20 (the side opposite to the outermost storage area 6a), a platform 24 is arranged so as to be able to move up and down. The elevating area of the platform 24 is surrounded by members as shown in FIGS. That is, a pair of column posts 29, 29 for guiding the platform 24 up and down are erected on both left and right sides (the side near and far from the transfer device 7) across the transfer path (arrow A) of the load W on the platform 24. Outside the column posts 29, 29, a U-shaped reinforcing frame 30 composed of a pair of cross beams 30a, 30b and a connecting cross beam 30c is arranged at regular intervals up and down among the three shelves. You. In plan view, a region surrounded by the U-shaped reinforcing frame 30 and one side edge 20a of the temporary storage shelf 20 for storage is an area for raising and lowering the platform 24 in plan view. One end of one cross beam 30a of the reinforcing frame 30 is fixed to the rear side of the temporary storage shelf 20 by bolts or welding, and the other end of the cross beam 30b is connected to the end of the support rail 8 by bolts. It is fixed to a side surface of an end support 31 having a U-shaped cross section for fixing and supporting by bolts or welding (see FIGS. 4 and 7). An end support (not shown) having a U-shaped cross section for supporting the end of the other support rail 8 and the end support 31 are connected by a reinforcing cross beam 32. In the platform 24 of the platform 24, a rectangular frame 33 in a plan view has a U-shaped downwardly-facing gate-shaped frame at a location slightly away from the storage temporary storage shelf 20 from the center in the transfer direction of the package W. 38 is erected. At this time, the vertical frames 3 on both sides of the portal frame 38
8a, 38b are arranged so as to face the U-shaped guide grooves 29a of the column posts 29, 29 in a plan view, and a pair of upper and lower main guide rollers 39, 39 rotate outside the vertical frames 38a, 38b. The main guide rollers 39, 39 are freely pivoted, and are fitted in the guide grooves 29a of the column posts 29 to be guided in a vertical (vertical) direction. In other words, the platform 24 is configured to be able to move up and down while maintaining a state where the platform 24 is restricted from tilting up and down with respect to the transfer direction of the load W (see FIGS. 5 and 7). A pair of left and right auxiliary guide rollers 41, 41 are rotatably mounted on brackets 40 projecting horizontally at upper and lower positions of one vertical frame 38a. The horizontal fin piece 29b of the column post 29 is guided so as to restrict the platform 24 from shifting in the horizontal direction orthogonal to the transport direction of the load W (see FIGS. 5, 7, and 11). An elevating mechanism for elevating the platform 24 includes a chain sprocket 42, 43 (see FIG. 8) provided at the upper and lower ends of the pair of column posts 29, 29 (see FIG. 8).
4 and the lower chain sprocket 43, 43 is driven by a drive shaft 45 at the lower ends of the pair of column posts 29, 29.
The drive shaft 45 is rotatably driven via an ascending and descending drive motor 47 and a speed change mechanism 48, which are attached so as to rotate integrally with each other. Then, a part of the elevating chain 44 is connected to the portal frame 3.
The platform 24 is connected and fixed to the vertical frames 38a, 38b on both sides of the base 8 at appropriate locations via the connection fittings 46, so that the platform 24 is adjacent to one side of the temporary storage shelf 20 at the height of each shelf. You can go up and down. A large number of transport rollers 34 rotating in the transport direction of the load W
Are arranged at regular intervals. The transport rollers 34 abut on an upper surface of a transmission belt 36 having an appropriate width wound around a group of power transmission rollers 35 disposed at a lower side of the power transmission roller 35. By the driving force from the transport drive motor 37 which can be rotated forward and backward, the transport rollers 34 are rotated via the transmission belt 36, and the load W placed thereon is moved in the direction of the arrow A in FIG. It is transported in the direction of approaching the storage temporary shelves 20 or in the direction of arrow B (usually not used for warehousing work, but when luggage W of the wrong size or type is stored, etc., the original warehousing conveyor 19 is used. May be actuated in the direction of arrow B to return to the normal position). The platform 24 is provided with a pusher device 50 for pushing and moving the load W placed in the middle of the group of transport rollers 34 to a position above the storage temporary storage shelf 20. This pusher device 50
A pair of arms 51, 51 which are arranged outside both ends of the group of transport rollers 34 (such as left and right outside of the underframe 33) and move up and down.
And a pusher roller 52 as a pusher body rotatably attached to the distal ends of the arms 51, 51, and guiding the base ends of the arms 51, 51 so as to move up and down on both sides of the underframe 33. And a drive for driving the at least one arm 51 in the transfer direction of the load W (direction of arrow A in FIG. 8) and the return direction of the pusher roller 52 (direction of arrow B in FIG. 8). Means 5
4 Then, the pair of arms 51, 51
FIG. 6 to FIG.
As shown in (2), in the initial position (retreat position), the transport roller 34 is in a prone position in which the load W is lowered to a position equal to or slightly lower than the upper surface of the transport roller 34 in the middle of the transport direction of the load W. Then, pusher roller 5
The pair of arms 51, 51 is changed to a standing posture in which the pair of arms 51, 51 stand obliquely upward, so that the pusher roller 52 stays in the standing posture, so that the load W moves upward. And pushes the luggage W to a predetermined temporary place by pushing the luggage W beyond the inclined one side end 20a of the storage temporary storage shelf 20. After being pushed out as described above, it returns to the initial position and waits while tracing the posture in reverse. The two arms 51, 51
The side to which the pusher roller 52 as the pusher body is attached is long and substantially linear along the transfer direction (the direction of arrow A) of the load W, and has a shape in which the base end side is bent downward. As shown in FIGS. 7 to 11, the undulating movement guide means 53 includes a regulating roller 55 which is attached inwardly to the base ends of the arms 51, 51, and a regulating roller 55 which is provided at an intermediate portion in the longitudinal direction of the arms 51, 51. Rotation center roller 56 attached in the direction
And a first linear guide rail 57 attached to both outer surfaces of the underframe 33 of the platform 24, and a second guide rail 58 disposed below the first guide rail 57 for regulating the posture. Numeral 58 is formed so that its cross section has a U-shaped guide groove outward. The rotation center roller 56 is fitted and inserted into the first guide rail 57 and moves while rolling. On the other hand, the regulation roller 55 is inserted and inserted into the second guide rail 58 and moves while rolling. Then, in the initial regulating portion 58a (the position corresponding to the initial position) of the second guide rail 58, the section having the appropriate length Lo is a height position close to the transport roller 34, and then diagonally downward (in the transport direction of the load W ( A transition portion 58b which is bent so as to be downward as going in the direction of the arrow A) is appropriately formed in a section having a length L1, and then, in the extruded portion 58c, a low position is formed horizontally in a section having an appropriate length L2. (See FIG. 10). The drive means 54 includes a drive chain sprocket 60, a driven chain sprocket 61 provided on the left and right sides of the underframe 33 of the platform 24, and a chain 62 wound around them (FIG. 9).
And a pusher motor 59 for driving the drive chain sprockets 60 on the left and right sides via a drive shaft 63. The pusher motor 59 can be rotated forward and reverse. The lower ends of the connecting members 65, 65 which relatively rotate via a bearing 64 are connected to the left and right chains 62, 62 by screws or the like (only one is shown in FIG. 11). Reference numeral 66 denotes a tensioning member that pulls the driven chain sprocket 61 to tension the chain 62. Also, on both left and right sides of the underframe 33 of the platform 24, safety guard plates 6 for preventing the left and right side edges of the load W from laterally shifting and protruding outside.
7 (only one is shown in FIG. 11). FIG.
In the Lo section shown in the figure, the pusher roller 52 has a position equal to or lower than the height of the upper surface of the transport roller 34 on the entrance side of the platform 24 (the entrance conveyor 19).
(The side closer to the downstream end of the transfer) (see FIG. 9). Next, similarly, the section of L1 corresponds to an upright transition section D1 in which the pusher roller 52 raises the arm 51 in order to push the load W from a low position at the introduction section (shown in FIG. 9). Further, the section L2 is a workspace section in which the arm 51 moves in the direction of arrow A while standing up, and the pusher roller 52 pushes the rear surface of the load W to move the load W toward the transfer direction of the platform 24. D2 and an extruding section D3 for pushing the luggage W to a predetermined temporary storage location beyond the inclined one-side end 20a of the storage temporary storage shelf 20 (shown in FIG. 9). As shown in FIG. 9, on the left and right sides of the underframe 33, for example, on the inner surfaces of the safety guard plates 67 on the left and right sides, a light transmitting sensor or a light reflecting sensor for detecting the passage or stop position of the load W is provided. Arrange the type sensor. The position of the sensor is such that the first sensor 68 on the start end side of the introduction section Do and the second sensor 69 on the rear end of the workspace section D2 allow the load W to be mounted in the safe mounting area of the platform 24. When the rear end or the front end of the load W is detected by the first sensor 68 or the second sensor 69, an alarm buzzer sounds and the operator is notified (warned). The third sensor 70 is disposed at the rear end of the upright transition section D1. When the transport roller 34 transfers the load W to the workspace section D2, the third sensor 70 detects that the rear end of the load W has passed through the upright transition section D1. When the third sensor 70 confirms that the baggage W has passed, the pusher roller 52
This is to prevent the pusher roller 52 from being unable to stand up because there is no luggage W above. The fourth sensor 71 detects the front end of the load W transferred to the work space section D2 and stops the rotation of the transport roller 34. In the automatic warehouse having the above-described configuration, the cargo W is carried into the storage conveyor 19 of the storage section, the platform 24 is moved up and down to the same height as the storage conveyor 19 by lowering or the like, and then stopped, and the transport drive motor 37 is stopped.
Is operated to rotate the group of transport rollers 34 to transfer the load W from the storage conveyor 19 to the introduction section Do. In this state, the posture of the load W may be inclined with respect to the axis of the transport roller 34 in plan view. Subsequently, the transport rollers 34 are rotated to transfer the load W into the workspace section D2. In the meantime, it is preferable to raise the platform 24 to a shelf at a certain height of the storage area 6 to be stored in order to speed up the storing operation.
In the case of luggage W or the like in a cardboard box or container, the data of the POS mark attached to the outer surface of the cardboard box or container is read by the mark recognizing means at the time of entry, and is read.
By determining in advance the empty storage area 6 to be stored according to the type of the baggage W, the position of the shelf to be stopped on the platform 24 and the storage area 6 where the transfer device 7 moves horizontally and stops. Are determined by a computer, and operations such as raising and lowering the platform 24 and moving the transfer device 7 are automatically controlled. Temporary storage shelf 20 for storage at a predetermined shelf height
When the driving means 54 is actuated and the pusher device 50 is forcibly moved in the direction of the arrow A, the pair of arms 51, 51 in the prone state at the initial position are first inclined obliquely upward. The posture of the load W is corrected so that the pusher roller 52 approaches the rear end surface of the load W while standing upright, and then is pushed in parallel with the axis of the pusher roller 52 as the rear end surface of the load W is pushed by the pusher roller 52. Storage shelves 20
It is transported up and the delivery work is completed. The rearward position of the load W in the transfer direction on the storage temporary shelves 20 is defined by the maximum movement position of the pusher roller 52 in the direction of the arrow A, so that the stop position of the load W does not vary. Thereafter, when the pusher motor 59 of the driving means 54 is rotated in the reverse direction, the chain 62 moves in the opposite direction.
Since the rotation center roller 56 is forcibly retracted along the first guide rail 57 via the connecting member 65, both the arms 51, 51, and eventually the pusher roller 52 also retreat, and at the beginning of the retreat (the pushing section). In the work space section D2 from D3, the regulating roller 55 passes through the extruded portion 58c of the second guide rail 58 so that the pusher roller 52 passes horizontally above the group of transport rollers 34. When the regulating roller 55 passes through the oblique transition portion 58b of the rail 5, the arm 5
The push-down rollers 1 and 51 move down (downward rotation) so that the pusher roller 52 moves downward around the rotation center roller 56, and when the regulating roller 55 comes to the initial regulating portion 58a, the pusher roller 52 is the transport roller 3
It sinks at the set position in the middle of the fourth group, and the arm 51,
Numeral 51 returns to the initial position where its longitudinal portion is parallel to the underframe 33. The sensor arm 72 attached to the connecting member 65 or the like and always held horizontally is provided.
(See FIGS. 10 and 11) The first guide rail 5
7, a light-blocking front sensor 73 that detects the initial position of the arm 51 in the pusher device 50, and a rear sensor that detects the maximum protrusion of the pusher roller 52. 74 (FIG. 9
) Are passed by the rear end and the front end of the arm sensor 72, respectively. If the transfer device 7 stops on the side of the storage temporary storage shelf 20 where the luggage W is temporarily stored, the transfer arm 15 of the pair of pickers 14a and 14b in the transfer device 7 moves out and back, and the pickers 17 and The luggage W is taken in by the rotation of 17, and the luggage W is stored in the predetermined storage area 6. In the present invention, as described above, the pusher 52 as a pusher body and the arms 51 and 51 for supporting the pusher body are located within the entire length of the underframe 33 of the platform 24 at the initial position (retreat position) (in the load W loading area). ), The underframe 3 of the platform 24
Unlike the configuration in which the pusher body is retracted outside the load W loading area while receiving the load W on the platform 3, the platform 2
4 can be reduced in length (length in the direction of arrow A) and can be made compact. In addition, a pusher roller 52 as a pusher body is sunk between the area (introductory section Do) for receiving the baggage W from the outside (introduction section Do) and the workspace section D2 at the time of entry, so that the baggage W can pass thereover. Therefore, even with this, even if the total length of the platform 24 is shortened, the effect that the luggage W can be smoothly received can be obtained. The transport roller 34
And the axis of the pusher roller 52 are arranged in parallel, so that even if the overall length of the platform 24 is shortened, it is possible to smoothly receive the load W. Furthermore, since the pusher roller 52 is raised and pushes the back surface of the load W and is transferred in the direction of arrow A, the position of the load W transferred to the storage temporary storage shelf 20 is parallel to the axis of the pusher roller 52. This has the effect of being able to be set in a posture. Then, since the load W is pushed by the pusher roller 52, the load W is compared with the case where the load W is pushed by the flat and non-rotating pusher body.
This has the effect of reducing friction when pressing. If the upper surface of the pusher roller 52 is equal to the upper surface of the transport roller 34 at the initial position, the load W can be transferred to the introduction section Do.
The pusher roller 52 can also serve as a transport roller (idler roller) when transferring from the to the work space section D2, and the load W during transfer can be transferred smoothly without rattling up and down. If the pusher roller 52 as the pusher body is changed from the prone position to the upright position, and the up / down movement guide means 53 to be held is composed of two guide rails, a relatively simple configuration can be achieved.
As described above, the posture can be reliably changed and held, and the effect of reducing the manufacturing cost can be obtained.

As described above in detail, the pusher device according to the first aspect of the present invention is provided at the left and right outer positions of the transported load on the underframe on which the transport rollers for transporting the load are arranged. A pair of arms arranged in the transfer direction of the load, a pair of pusher bodies attached to the tips of the two arms, a driving means connected to the two arms to move forward and backward along the transfer direction, and Arranged on both left and right sides, in the initial position, the pusher body is in a prone position in which it sinks at the storage location in the middle of the transport roller group, and as it advances in the transfer direction, the pusher body rises above the upper surface of the transport roller group. Both arms are turned obliquely upward so as to stand up, and then the load is pushed out of the underframe beyond the transport roller group while the pusher body at the upright position remains almost horizontal. It is obtained by a movement guide means. As described above, in the present invention, the pusher body and the arm for supporting the pusher body are located within the entire length of the platform underframe (in the luggage placement area) at the initial position (retracted position), so that the Unlike the configuration in which the pusher body is retracted outside the load storage area while receiving the load on the underframe, the overall length of the platform can be shortened and the platform can be made compact. In addition, since the pusher body is sunk into the middle of the transport roller group so that the load can pass over the pusher body, even if the overall length of the platform is shortened, the load W can be smoothly received. It has the effect of being able to. According to a second aspect of the present invention, in the pusher device for a luggage according to the first aspect, the up-and-down moving guide means is disposed on both left and right sides of the underframe, and extends along the transfer direction. The first guide rail includes a guide rail and a second guide rail, and the first guide rail is formed in a substantially linear shape so as to guide the rotation center roller in the middle part in the longitudinal direction of the two arms along the transfer direction. The rail extends so as to guide the regulating roller mounted below the rotation center roller along the transport direction, and the pusher body sinks at a storage location in the middle of the transport roller group. The initial restricting portion in the prone position, the shifting portion for turning the arm obliquely upward to shift the pusher body upward, and the pusher body in the upright position above the upper surface of the transport roller group are roughly moved. In which the extrusion portion to advance along the transport direction remains the cargo in the horizontal state are successively formed. in this way,
The up-and-down movement guide means for changing and holding the pusher body from the prone position to the upright position is a set of the above-mentioned first guide rail, a rotation center roller fitted thereto, a second guide rail, and a regulating roller. Therefore, the effect is relatively simple, and the manufacturing cost can be reduced. According to a third aspect of the present invention, in the loader pusher device according to the first or second aspect, the pusher body is a roller body that is in sliding contact with the back surface in the transport direction of the load. There is an effect that the posture of the luggage transferred to the temporary storage shelf can be set to a constant posture parallel to the axis of the pusher roller. And
Since the load is pushed by the pusher roller, there is an effect that the friction when pushing the load is reduced as compared with the case where the load is pushed by the flat and non-rotating pusher body.

[Brief description of the drawings]

FIG. 1 is a schematic side view of an automatic warehouse.

FIG. 2 is a schematic front view of an automatic warehouse.

FIG. 3 is a plan view of the transfer device.

FIG. 4 is a perspective view showing an arrangement relationship among a lifting area of the platform, a temporary storage shelf for storage, and a stop end of the transfer device.

FIG. 5 is a front view of the platform.

FIG. 6 is a perspective view of a platform.

FIG. 7 is an enlarged sectional view taken along line VII-VII of FIG. 5;

FIG. 8 is a side view of the platform, showing a driving relationship of a transport roller.

FIG. 9 is a side view of the platform, showing a driving relationship of the pusher device.

FIG. 10 is a side view showing a main part of the undulating movement guide means of the pusher device.

FIG. 11 is an enlarged sectional view showing a main part of an up-and-down movement guide means of the pusher device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Unit warehouse 2 Hangar 3 Shelf 6 Storage area 7 Transfer device 8 Support rail 14a, 14b Picker part 15 Moving arm 20 Temporary storage shelf 24 Platform 29, 29 Column post 33 Underframe 34 Transport roller 50 Pusher device 51, 51 Arm 52 pusher roller 53 undulating movement guide means 54 driving means 55 regulating roller 56 rotation center roller 57 first guide rail 58 second guide rail 62 chain 65 connecting member

Claims (3)

[Claims] 1. A pair of arms, which are arranged at both left and right outer positions of a transported load on a frame on which a transport roller group for transporting the load is disposed, and extend in the transport direction of the load, A mounted pusher body, driving means connected to both arms to move back and forth along the transfer direction, and disposed on both left and right sides of the underframe, and the pusher body is located at an initial position in the middle of the transport roller group. The arms are turned obliquely upward so that the pusher body rises above the upper surface of the transport roller group as it advances in the transfer direction, and then the pusher at the standing position An up-and-down moving guide means for pushing the luggage out of the underframe beyond the transport rollers while the body is substantially horizontal. . 2. The undulating movement guide means includes a first guide rail and a second guide rail which are disposed on both left and right sides of the underframe and extend along the transfer direction. The two guide rails are formed substantially linearly so as to guide the rotation center roller in the middle part in the longitudinal direction along the transfer direction, and the second guide rail includes a regulating roller mounted below the rotation center roller. An initial regulating portion that extends so as to be guided along the transfer direction, and is in a prone position in which the pusher body sinks down at a storage location in the middle of the transport roller group, and an arm that moves the pusher body upward. And a push-out unit that advances the pusher body in an upright position above the upper surface of the transport roller group along the transport direction of the load while keeping the pusher body in a substantially horizontal state. Luggage pusher device according to claim 1, characterized in that it is next formed. 3. The pusher body according to claim 1, wherein the pusher body is a roller body that slides on a back surface of the load in the transport direction.
Or the load pusher device of claim 2.