JP6507728B2 - Lifting and conveying device - Google Patents

Description

  The present invention relates to a lifting and conveying apparatus, and more particularly, to a loading and unloading apparatus for carrying a load to an automatic warehouse having a plurality of shelves and unloading the load from the automatic warehouse.

There is known an automatic warehouse provided with a plurality of carriers corresponding to each row of racks. Each transport vehicle transfers the load between the transport vehicle and the shelf of each stage while traveling in the direction in which the rack extends in each stage. In such an automatic warehouse, a lifting and lowering transfer device is provided for carrying in a load to each stage of the rack or for unloading the load from each stage of the rack.
Patent Document 1 discloses a lifting and lowering apparatus provided with a lifting and lowering base that lifts and lowers along one mast.

JP 2012-188225 A

  In the elevating device described above, only one package can be raised and lowered at one time. That is, the transport capacity of the lifting device is not sufficient. Therefore, the lifting device can not carry in / out a large amount of luggage to the automatic warehouse in a short time.

  An object of the present invention is to improve the transfer capability of a load in a lifting and lowering transfer device.

  Below, a plurality of modes are explained as a means to solve a subject. These aspects can be arbitrarily combined as needed.

The elevating and conveying apparatus according to the first aspect of the present invention is an elevating and conveying apparatus for elevating and conveying a load. The elevating and conveying apparatus includes a column, an endless drive transmission member, a first vertical guide rail and a second vertical guide rail, a fixing member, a rotating member, a comb-like support member, and a guide roller. ing.
The support extends in the vertical direction.
The endless drive transmission member is supported by the support column, and rotates in a vertical plane to secure a pair of elevating paths arranged in the front-rear direction.
The first vertical guide rail and the second vertical guide rail are spaced apart from each other in the front-rear direction near the pair of elevation paths.
The fixing member is fixed to the endless drive transmission member.
The rotating member is rotatably supported by the fixed member and moves in a pair of lifting and lowering paths.
The comb-like support member is connected to the pivoting member, and can support the load from below.
The elevating guide roller is provided on the pivoting member, and is guided by the first vertical guide rail and the second vertical guide rail to maintain the pivoting member and the supporting member in a horizontal state.

  In this device, the pivoting member and the support member move along the elevating path by means of the endless drive transmission member together with the fixed member. When the conveyor of another device through which the comb teeth can pass is taken out to the elevating path, the support member passes through the conveyor to deliver the package between the support member and the conveyor.

  When the pivoting member is moving in the vertical direction, the lifting guide roller is guided by the first vertical guide rail and the second vertical guide rail, whereby the pivoting member and the comb-like support member are in a horizontal state Maintained. In this case, since the position guided by the first vertical guide rail and the second vertical guide rail of the elevating guide roller is separated from the endless drive transmission member in the front-rear direction, the vibration from the endless drive transmission member is the elevating guide roller It is hard to be transmitted to In addition, the postures of the rotation member and the support member become stable. From the above, it is possible to speed up the circumferential movement of the endless drive transmission member, thereby improving the ability of the lifting and conveying device to convey the load.

  The raising and lowering guide rollers may have raising and lowering rollers provided on both sides in the front-rear direction of the turning member and sandwiching the first vertical guide rail or the second vertical guide rail therebetween. In this device, the pivoting member moves in the elevating path without being reversed at the upper end and the lower end of the support. Therefore, in one elevating route, a pair of elevating rollers on the side away from the endless drive transmission member in the longitudinal direction among the pair of elevating rollers is guided to the first vertical guide rail, and in the other elevating route both pairs Among the lifting and lowering rollers, the pair of lifting and lowering rollers on the side separated in the front-rear direction from the endless drive transmission member is guided by the second vertical guide rail. In this device, since the pair of lifting rollers sandwich the first vertical guide rail or the second vertical guide rail, the postures of the rotation member and the support member are stabilized.

The elevating and conveying apparatus may further include a pivoting rail disposed at an upper end of the support, and a pivoting guide roller provided on the pivoting member and guided to the pivoting rail.
In this device, when the turning guide roller is guided to the turning rail, the postures of the turning member and the supporting member are stabilized when moving the upper end of the support.

  In the lifting and conveying apparatus according to the present invention, the carrying capacity of the load is improved.

The front view of a raising / lowering conveyance apparatus. The top view of a raising / lowering conveyance apparatus. Partially enlarged front view of a raising and lowering conveyance apparatus. Partially enlarged front view of a raising and lowering conveyance apparatus. Partially enlarged plan view of the lifting and lowering conveyance device. The schematic diagram which shows the transfer operation of a raising / lowering conveyance apparatus. The schematic diagram which shows the transfer operation of a raising / lowering conveyance apparatus. The schematic diagram which shows the transfer operation of a raising / lowering conveyance apparatus. The schematic diagram which shows the transfer operation of a raising / lowering conveyance apparatus. The schematic diagram which shows the transfer operation of a raising / lowering conveyance apparatus. The schematic diagram which shows the transfer operation of a raising / lowering conveyance apparatus. The schematic diagram which shows the transfer operation of a raising / lowering conveyance apparatus. The schematic diagram which shows the transfer operation of a raising / lowering conveyance apparatus. The schematic diagram which shows the transfer operation of a raising / lowering conveyance apparatus. The schematic diagram which shows the transfer operation of a raising / lowering conveyance apparatus. The schematic diagram which shows the transfer operation of a raising / lowering conveyance apparatus. The schematic diagram which shows the transfer operation of a raising / lowering conveyance apparatus. The schematic diagram which shows the turning operation | movement of a raising / lowering conveyance apparatus. The schematic diagram which shows the turning operation | movement of a raising / lowering conveyance apparatus. The schematic diagram which shows the turning operation | movement of a raising / lowering conveyance apparatus. The schematic diagram which shows the turning operation | movement of a raising / lowering conveyance apparatus. The schematic diagram which shows the turning operation | movement of a raising / lowering conveyance apparatus.

1. First Embodiment (1) Schematic Configuration of Lifting and Conveying Device The lifting and conveying device 1 according to the first embodiment will be described with reference to FIGS. 1 and 2. FIG. 1 is a schematic front view of the lifting and conveying apparatus according to the first embodiment. FIG. 2 is a plan view of the elevating and conveying device.
The elevating and conveying apparatus 1 is an apparatus for carrying in a load W to an automatic warehouse 3 having a plurality of shelves and unloading the load W from the automatic warehouse 3. In the following description, the left-right direction in FIG. 1 is referred to as the front-rear direction (first horizontal direction), and the direction orthogonal to the front-rear direction is referred to as the left-right direction (second horizontal direction).

  As shown in FIG. 1, the elevating and conveying apparatus 1 is disposed in the front-rear direction between the storage and retrieval unit 5 of the automatic warehouse 3 and the storage and retrieval station 7 and transports a load W between them. The automated warehouse 3 is an automated warehouse of each shuttle type, and carriers (not shown) are arranged to be able to move back and forth for each rack stage. The loading / unloading unit 5 is a device for carrying in the luggage W to the automatic warehouse 3 and unloading it from the automatic warehouse 3. The storage and retrieval unit 5 has a plurality of stages 5A to 5K. The stages 5A to 5K respectively include conveyors 9A to 9K for transporting the load W in the front-rear direction. On the right side of the drawings of the conveyors 9A to 9K, transport vehicles (not shown) that travel the stages of the automated warehouse 3 are disposed. The conveyors 9A to 9K are supported so as to be movable back and forth by linear guides, and can be moved in the front and back direction by pushers 13A to 13K each having an operation cylinder. As a result, the conveyors 9A to 9K can move between the first position in the first elevation path 25a (described later) and the second position outside the front and rear direction from the first elevation path 25a.

The loading and unloading station 7 has a plurality of stages 7A to 7B, respectively. The stage 7A is disposed above the loading and unloading station 7, and the stage 7B is disposed below the loading and unloading station 7. The stages 7A to 7B respectively have conveyors 11A to 11B for transporting the load W in the front-rear direction. The conveyors 11A to 1B are supported so as to be movable back and forth by linear guides, and are movable in the front and back direction by pushers 14A to 14B each having an operation cylinder. Thus, the conveyors 11A to 11B can move between the first position in the second lifting and lowering path 25b (described later) and the second position outside the second lifting and lowering path 25b in the front-rear direction.
The conveyors 9A to 9K and 11A to 11B, as shown in FIG. 2, have a plurality of rollers extending in the lateral direction and supported by the slide member in a cantilever manner.

(2) Detailed Configuration of Lifting and Conveying Device The detailed configuration of the lifting and conveying device 1 will be described with reference to FIGS. 3 to 5. FIG.3 and FIG.4 is a partial enlarged front view of a raising / lowering conveyance apparatus. FIG. 5 is a partially enlarged plan view of the elevating and conveying device.
The elevating and conveying apparatus 1 is an apparatus for moving a plurality of comb teeth trays 17 to transfer the load W between conveyors 9A to 9K and 11A to 11B which can pass in the vertical direction with respect to the support member 35. .

(2-1) Circulating Structure of Lifting and Transporting Apparatus The lifting and transporting apparatus 1 has a support 21. The columns 21 extend in the vertical direction.
The lifting and conveying apparatus 1 has an endless drive transmission member 23. The endless drive transmission member 23 is supported by the column 21 and secures the elevating path 25 in the front-rear direction by rotating in a vertical plane. The vertical plane is parallel to the longitudinal direction. The raising and lowering path 25 has a first raising and lowering path 25a on the side of the automatic storage 3 and a second raising and lowering path 25b on the side of the entry / exit station 7. Specifically, the endless drive transmission member 23 is a chain. The lifting and conveying apparatus 1 has a first direction changing member 51 and a second direction changing member 53 for supporting the upper and lower portions of the endless drive transmission member 23. The first direction changing member 51 and the second direction changing member 53 are sprockets. The lifting and conveying apparatus 1 includes a lifting motor 55. The elevating motor 55 drives the first direction changing member 51 to move the endless drive transmission member 23 in a circulating manner. In this embodiment, in FIG. 1, the endless drive transmission member 23 continues to rotate counterclockwise.

The lifting and conveying apparatus 1 has a first vertical guide rail 27 and a second vertical guide rail 29. As shown in FIG. 3, the first vertical guide rails 27 and the second vertical guide rails 29 are disposed apart from each other in the front-rear direction in the vicinity of the elevation path 25. More specifically, the first vertical guide rail 27 and the second vertical guide rail 29 are respectively disposed on both sides in the front-rear direction in a region on one side in the left-right direction of the elevation path 25. The upper end and the lower end of the first vertical guide rail 27 and the second vertical guide rail 29 are terminated halfway, so that the comb tray 17 is formed at the upper end and the lower end of the support 21 as described later. And can be pivoted away from the second vertical guide rail 29.
In this embodiment, as shown in FIG. 5, the first vertical guide rail 27 has a first plate 39 extending in the left-right direction and a second plate 41 extending in the front-rear direction. The second vertical guide rail 29 also has a third plate 43 extending in the left-right direction and a fourth plate 45 extending in the front-rear direction.

(2-2) Structure of Comb Tray of Elevating and Conveying Device The comb tray 17 is a mechanism attached to the endless drive transmission member 23 and transports the load W. The comb tray 17 has a fixing member 31. The fixing member 31 is connected to the endless drive transmission member 23. The fixing member 31 is a member extending outward from the endless drive transmission member 23. The fixing member 31 circulates along with the endless drive transmission member 23 and is reversed at the upper end and the lower end of the support 21.
The comb tray 17 has a plurality of pivoting members 33. The pivoting member 33 is rotatably supported by the fixed member 31 and moves in the first elevating path 25a and the second elevating path 25b. Specifically, the rotation member 33 is supported by the rotation support portion 31 a of the fixed member 31 so as to be suspended. Since the rotation member 33 is rotatable with respect to the fixed member 31, it rotates around without reversing.

The comb tray 17 has a plurality of comb-shaped support members 35 (hereinafter referred to as support members 35). The support member 35 is fixed to the pivoting member 33. Specifically, the support member 35 has a plurality of comb teeth 35 a extending in the left-right direction at the lower end of the rotation member. Since the support member 35 is fixed to the rotation member 33, the upper end and the lower end of the support 21 do not turn over.
As shown in FIG. 3, the comb teeth 35 a have a structure in which one end in the left-right direction is supported in a cantilever manner. The comb teeth 35a can pass between the rollers of the conveyors when the conveyors 9A to 9K and 11A to 11B are in the elevating path 25.

(2-3) Guide Structure of Elevating and Conveying Device The elevating and conveying device 1 has an elevating guide roller 37. The elevating guide roller 37 is provided on the pivoting member 33 and is guided by the first vertical guide rail 27 and the second vertical guide rail 29 to maintain the pivoting member 33 and the support member 35 in a horizontal state.

  Specifically, the lifting guide rollers 37 have a pair of first lifting rollers 47 sandwiching the first vertical guide rail 27 or the second vertical guide rail 29 therebetween. The first lifting roller 47 is provided on each side of the pivoting member 33 in the front-rear direction. The rotating shaft of the pair of first lifting rollers 47 is directed in the left-right direction. When the support member 35 is moving on the first lifting and lowering path 25a, the pair of first lifting and lowering rollers 47 on the side of the automatic storage 3 (a pair of first lifting and lowering rollers on the side separated from the endless drive transmission member 23 in the front and rear direction) The roller 47) is guided by the first plate 39 of the first vertical guide rail 27. When the support member 35 is moving in the second lifting and lowering path 25b, the pair of first lifting and lowering rollers 47 on the side of the loading and unloading station 7 (a pair of first lifting and lowering on the side separated from the endless drive transmission member 23 in the front and rear direction) The roller 47) is guided by the third plate 43 of the second vertical guide rail 29.

When the pivoting member 33 moves in the vertical direction, the elevating guide roller 37 is guided by the first vertical guide rail 27 and the second vertical guide rail 29, whereby the pivoting member 33 and the support member 35 It is kept horizontal. In this case, the position at which the elevating guide roller 37 is guided by the first vertical guide rail 27 and the second vertical guide rail 29 is separated from the endless drive transmission member 23 in the front-rear direction, so vibration from the endless drive transmission member 23 Is difficult to be transmitted to the lifting guide roller 37. Further, the postures of the rotation member 33 and the support member 35 are stabilized. As described above, the circumferential movement of the endless drive transmission member 23 can be speeded up, whereby the carrying capacity of the load W of the lifting and conveying apparatus 1 is improved.
In addition, since the position at which the lifting guide roller 37 is guided by the first vertical guide rail 27 and the second vertical guide rail 29 is separated from the endless drive transmission member 23 in the front-rear direction, the vibration from the endless drive transmission member 23 is The load transmitted to the lifting guide roller 37 is small. Further, maintenance of the elevating guide roller 37 is facilitated.

  The fixing member 31 is provided with a pair of second lifting rollers 49 disposed on both sides in the vertical direction. The rotation shaft of the pair of second lifting rollers 49 is directed in the front-rear direction. When the support member 35 is moving in the first lift path 25 a, the pair of second lift rollers 49 is guided by the second plate 41 of the first vertical guide rail 27. When the support member 35 is moving in the second lift path 25 b, the pair of second lift rollers 49 is guided by the fourth plate 45 of the second vertical guide rail 29.

(3) Transfer Operation of Elevating and Conveying Device In the elevating and conveying device 1, the pivoting member 33 and the support member 35 move the elevating path 25 by means of the endless drive transmission member 23 together with the fixed member 31. Then, when the conveyors 9A to 9K or 11A to 11B through which the comb teeth 35a can pass are taken out to the elevating path 25, the support members 35 pass the conveyors 9A to 9K or 11A to 11B, thereby the support members 35 and the conveyor Delivery of the package W is performed between 9A to 9K or 11A to 11B.

The operation of transferring the load W from the conveyor 9B to the support member 35 will be described as an example of the transfer operation with reference to FIGS. 6 to 11 are schematic views showing the transfer operation of the lifting and lowering conveyance device.
In FIG. 6, the empty support member 35 ascends the second elevation path 25b toward the conveyor 9B.
In FIG. 7, the pusher 13 </ b> B moves the conveyor 9 </ b> B on which the load W is placed to the second elevation path 25 b side.
In FIG. 8, the conveyor 9B is stopped in the second lifting path 25b.

In FIG. 9, the support member 35 is close to the lower surface of the conveyor 9B.
In FIG. 10, the support member 35 picks up the load W, passes through the conveyor 9B, and further rises. Further, the conveyor 9B is moved by the pusher 13B so as to be out of the second elevation path 25b.
In FIG. 11, the conveyor 9B is out of the second lift path 25b, and the next support member 35 on which the load W is placed can pass.

An operation of transferring the load W from the support member 35 to the conveyor 11B will be described as an example of the transfer operation with reference to FIGS. 12 to 15. 12-15 is a schematic diagram which shows the transfer operation of a raising / lowering conveyance apparatus.
In FIG. 12, the support member 35 carrying the load W descends the first elevation path 25 a toward the conveyor 11 </ b> B.
In FIG. 13, the pusher 14 </ b> B moves the empty conveyor 11 </ b> B to the first elevation path 25 a side.

In FIG. 14, the conveyor 11 </ b> B stops at the first elevation path 25 a.
In FIG. 15, the support member 35 passes the conveyor 11B with the luggage W remaining on the conveyor 11B.
In FIG. 16, the support member 35 is further lowered. Further, the conveyor 11B is moved by the pusher 14B so as to be out of the first lift path 25a.
In FIG. 17, the conveyor 11B is out of the first lift path 25a, so that the support member 35 on which the next load W is placed can pass.

  In the above embodiment, an example has been described in which the package W is transported from the automatic warehouse 3 to the lifting and lowering transfer device 1 and then the package W is transferred from the lifting and transferring device 1 to the loading / unloading station 7. However, an example is also established in which the package W is transported from the loading / unloading station 7 to the elevating and transporting apparatus 1 and then the package W is transported from the elevating and transporting apparatus 1 to the automatic warehouse 3.

(4) Pivoting Structure and Pivoting Operation The pivoting operation of the support member 35 at the upper end of the lifting and conveying apparatus 1 will be described with reference to FIGS. 3 and 18 to 22. 18 to 22 are schematic views showing the turning operation of the lifting and lowering conveyance device.
The lifting and conveying apparatus 1 has a swing rail 61 disposed at the upper end of the lifting and conveying apparatus 1. The pivoting rail 61 has a first rail 61 a and a second rail 61 b which are disposed apart from each other in the front-rear direction. The first rail 61a and the second rail 61b have an arc-shaped inner circumferential surface, and the first rail 61a is disposed above the first elevation path 25a, and the second rail 61b is disposed in the second elevation path 25b. It is located at the top. That is, the turning rail 61 is disposed above the first vertical guide rail 27 and the second vertical guide rail 29. Both ends of the first rail 61a and the second rail 61b at the middle in the front-rear direction are arranged at the same height. However, the first rail 61a and the second rail 61b are arranged to be shifted in the left-right direction.

  The lifting and conveying apparatus 1 has a turning guide roller 63 provided on the turning member 33 and guided by the turning rail 61. The turning guide roller 63 has a first turning roller 63a and a second turning roller 63b. The rotation axis of the first turning roller 63a and the second turning roller 63b is in the left-right direction. The first turning roller 63a and the second turning roller 63b are arranged side by side in the front-rear direction. The first pivoting roller 63a and the second pivoting roller 63b are disposed at positions sandwiching the pivoting support portion 31a in the front-rear direction in a front view. However, the first turning roller 63a and the second turning roller 63b are disposed to be shifted in the left-right direction.

When the comb tray 17 approaches the upper end of the lifting and conveying apparatus 1 as shown in FIG. 18, thereafter, as shown in FIGS. 19 to 21, the first turning roller 63 a is the inner circumferential surface of the first rail 61 a. The second turning roller 63b is guided in contact with the inner circumferential surface of the second rail 61b. Thus, since the first turning roller 63a and the second turning roller 63b are respectively guided by the first rail 61a and the second rail 61b, the turning member 33 and the support in the turning operation at the upper end of the lifting and conveying apparatus 1 The member 35 is maintained in the horizontal state.
Finally, the comb tray 17 separates from the upper end of the lifting and conveying device 1.

2. Features of the Embodiment The lifting and conveying device 1 (an example of the lifting and conveying device) is a device for lifting and transporting the load W. The lifting and conveying apparatus 1 includes a support 21 (an example of a support), an endless drive transmission member 23 (an example of an endless transmission drive member), a first vertical guide rail 27 (an example of a first vertical guide rail) and a second vertical guide Rail 29 (an example of a second vertical guide rail), fixing member 31 (an example of a fixing member), pivoting member 33 (an example of a pivoting member), and a comb-like support member 35 (an example of a support member) And an elevating guide roller 37 (an example of the elevating guide roller).
The columns 21 extend in the vertical direction.
The endless drive transmission member 23 is supported by the support column, and secures a pair of elevating paths 25 (an example of the elevating paths) arranged side by side in the front-rear direction by rotating in a vertical plane.
The first vertical guide rail 27 and the second vertical guide rail 29 are disposed apart from each other in the front-rear direction in the vicinity of the pair of elevation paths 25.
The fixing member 31 is connected to the endless drive transmission member 23.
The pivoting member 33 is pivotably supported by the fixed member 31 and moves in the pair of elevating paths 25.
The comb-like support member 35 is fixed to the rotating member 33 and can support the load W.
The elevating guide roller 37 is provided on the pivoting member 33 and is guided by the first vertical guide rail 27 and the second vertical guide rail 29 to maintain the pivoting member 33 and the support member 35 in a horizontal state.

In the elevating and conveying apparatus 1, the pivoting member 33 and the support member 35 move the elevating path 25 by means of the endless drive transmission member 23 together with the fixing member 31. When the conveyor of another device through which the comb teeth 35a can pass is taken out to the elevating path 25, the support member 35 passes through the conveyor, whereby the package W is delivered between the support member 35 and the loading platform.
When the pivoting member 33 is moving in the vertical direction, the lifting guide roller 37 is guided by the first vertical guide rail 27 and the second vertical guide rail 29, whereby the pivoting member 33 and the comb teeth are formed. The support member 35 is maintained in the horizontal state. In this case, since the position of the lifting guide roller 37 guided by the first vertical guide rail 27 and the second vertical guide rail 29 is separated from the endless drive transmission member 23 in the front-rear direction, vibration from the endless drive transmission member 23 Is difficult to be transmitted to the lifting guide roller 37. Further, the postures of the rotation member 33 and the support member 35 are stabilized. From the above, the circumferential movement of the endless drive transmission member 23 can be speeded up, and the ability of the lifting and conveying apparatus 1 to convey the load is improved.

3. Other Embodiments Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the scope of the invention. In particular, the embodiments and modifications described herein may be arbitrarily combined as needed.

In the above-described embodiment, the lifting and lowering transfer device is used both for loading and unloading articles from the automatic warehouse, but may be used only for loading and unloading.
The endless drive transmission member may be a belt.

  INDUSTRIAL APPLICABILITY The present invention can be widely applied to an elevating and conveying apparatus that carries in a load to an automatic warehouse having a plurality of shelves and unloads the load from the automatic warehouse.

1: elevating and conveying device 3: automatic warehouse 5: storage and retrieval unit 7: input and output station 17: comb tray 21: support 23: endless drive transmission member 25: elevation path 25a: first elevation path 25b: second elevation path 27 : First vertical guide rail 29: second vertical guide rail 31: fixed member 31 a: rotation support portion 33: rotation member 35: support member 35 a: comb teeth 37: elevation guide roller 39: first plate 41: first plate 2 plate 43: third plate 45: fourth plate 47: first lifting roller 49: second lifting roller 51: first direction changing member 53: second direction changing member 55: lifting motor 61: turning rail 61a: First rail 61b: second rail 63: guide roller for turning 63a: roller for first turning 63b: roller for second turning W: load

Claims (1)

A lifting and lowering transfer device for lifting and transferring a load,
A vertically extending post,
An endless drive transmission member that is supported by the support column and rotates in a vertical plane to secure a pair of elevation paths arranged in the front-rear direction;
Are spaced apart from one another in the longitudinal direction in the vicinity of the pair of the lifting path, a third plate extending first vertical guide rail and a second plate extending in a first plate and a longitudinal direction extending horizontally, and the left-right direction A second vertical guide rail having a fourth plate extending in the front-rear direction ;
A fixing member fixed to the endless drive transmission member;
A pivoting member rotatably supported by the fixed member and moving the pair of elevating paths;
A comb-like support member connected to the rotating member and capable of supporting the load from below;
The rotating member and the supporting member are maintained in a horizontal state by being provided to the rotating member and guided by the first vertical guide rail and the second vertical guide rail , and the rotating member A pair of first raising and lowering rollers are provided on each side in the front and rear direction, and each pair is guided in a posture sandwiching the first plate and the third plate, and a pair is provided on the fixing member. A lifting guide roller having a second lifting roller guided in a posture across the four plates ;
A pivoting rail disposed at the upper end of the post;
A turning guide roller provided on the turning member and guided by the turning rail;
Lifting and conveying device equipped with

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