JPH0419132B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to load handling equipment using carriers, which is used, for example, to transport loads between work locations in a factory and to store them along the conveyance route. It is related to.

BACKGROUND TECHNOLOGY Conventionally, as seen in Japanese Patent Application Laid-Open No. 59-143755, this type of cargo handling equipment has been equipped with a trolley that is supported and guided on rails via drive wheels and steady rest rollers. It is constructed by providing a drive device that interlocks with the drive wheels, a shaft support part, and a tray. Then, with the load placed on the tray,
The transportation is carried out by making the trolley run automatically.

Problems to be Solved by the Invention According to the above-mentioned conventional system, a drive device must be provided for each truck, and a current collecting mechanism must be provided between the rail and the truck, making the entire system expensive. Furthermore, when empty or real carts are stored, this is done along a fixed path along the rails, so when storing a large number of carts, long storage lines are required, which increases the area occupied. In addition, a drive chain is arranged along the rail,
An inexpensive drive system in which a carrier is connected to this drive chain is conceivable, but this method does not allow for easy storage.

It is an object of the present invention to provide a carrier for transporting goods, which can be driven in a simple manner, can be stored on the conveyance path, and can be stored efficiently in a narrow space and can be sorted. The point is to provide handling equipment.

Means for Solving the Problems In order to solve the above problems, the cargo handling equipment using a carrier according to the present invention includes an endless shelf guide rail and a shelf carrier that can freely travel while being guided by the shelf guide rail. and a shelf driving device which is arranged along the shelf guide rail and applies running force to the shelf carrier, forming a rotating shelf, and the rotating shelf is arranged in multiple stages in the vertical direction to form a rotating shelf. The device comprises a conveyance section guide rail, a conveyance section carrier that is guided by the conveyance section guide rail and can freely travel on a fixed path, and is arranged along the conveyance section guide rail on the side of the rotary shelf device. A conveying device including a conveying unit driving device which is installed in the conveying unit and can be freely connected to and disconnected from the conveying unit carrier is disposed, and loads can be freely transferred between the carriers between the conveying device and the rotary shelf device, and the shelf driving unit At least one of the drive devices of the device or the transport unit drive device is composed of an endless rotating body that can be driven in forward and reverse directions, and a variable speed transmission section attached to the endless rotating body, and the carrier is connected to the variable speed transmission body. A passive part is provided that can be freely contacted from above.

Effects According to the configuration of the present invention, on a fixed path of the transport device, the transport unit carrier is connected to the transport unit drive device, receives a running force, and travels while being guided by the transport unit guide rail. The conveyor carrier then stops facing the transfer device, and the transfer device transfers the load. After the delivery, the empty or real conveyance section carrier receives the running force of the connected conveyance section drive device and travels on a fixed path to the next process. In the rotating shelf device, the shelf carriers of each stage are guided by the shelf guide rails and run by receiving the running force of the shelf driving device. Then, based on the command, the rotating shelf of the target stage stops at the location where the target shelf carrier is to be loaded and unloaded, and then the cargo is transferred between the shelf carrier and the rotating shelf device. Input/output is carried out. Further, at least one of the shelf drive device or the conveyance drive device is configured with an endless rotating body that can be driven in forward and backward directions, and a variable speed transmission section attached to the endless rotating body, and the carrier is configured to transmit variable speed transmission. Since the driven part is provided with a passive part that can be contacted from above, the carrier can be driven at high speed while the endless rotating body is driven at low speed.

Embodiment An embodiment of the present invention will be described below based on the drawings.

The rotating shelf device 2 installed in the surrounding wall 1 is configured by vertically arranging a plurality of rotating shelves 4 on a common machine frame 3. Each rotating shelf 4
, reference numeral 5 denotes an endless shelf guide rail with an I-shaped cross section, which is supported by the machine frame 3 via support members 6 at predetermined intervals. The support member 6 is connected to the lower part of one side of the shelf guide rail 5, and forms the upper part of one side of the shelf guide rail 5 as an upper guide surface 5a, and forms the lower part of the other completely open side as a lower guide. It is formed on the surface 5b. Reference numeral 7 denotes a shelf carrier that is supported and guided by the shelf guide rail 5 and can run freely on a fixed path, and is connected to the top plate 8A.
and a leg plate 8B to form a T-shape in front view, and an upper roller 10 that is rotatably attached to the lower surface of one end of the top plate 8A around a vertical axis 9 and that can freely come into contact with the upper guide surface 5a. , a lower roller 12 which is attached to the lower end of the leg plate 8B so as to be rotatable around the vertical axis 11 and which can freely come into contact with the lower guide surface 5b, a bumper 13 attached to both the front and rear sides of the top plate 8A, and a top plate. A bifurcated mounting portion 14 formed on the upper surface of the other end of 8A
and a plate-shaped passive part 15 attached to the lower surface of one end of the top plate 8A. Each roller 10,1
2 are disposed in the front and rear directions (a plurality of cases), and a case 17 that can freely store articles 16 is placed on the placing section 14 via a pallet 18. Reference numeral 19 denotes a shelf driving device disposed along the shelf guide rail 1, which applies running force to the shelf carrier 7. That is, the shelf driving device 19 has a main body of a profile rail 20 that is integrated with the shelf guide rail 5 and the support member 6, and the profile rail 20 forms a storage space 22 having a slit 20 on its upper surface. The bottom side of the storage space 22 is formed in a concave shape, and side mounting grooves 23 are formed on each of the left and right side surfaces, and upper mounting grooves 24 are formed on each of the left and right pair of upward facing surfaces. Said side mounting groove 23
A first rail 25 is attached to the upper mounting groove 24, and this first rail 25 is attached to a second rail 25 attached to the upper mounting groove 24.
The rail 26 and the third rail 27 can be selectively attached and detached. Reference numeral 28 denotes a roller chain which is an example of an endless rotating body that can be driven in forward and reverse directions, and the link plates at appropriate locations have upwardly extending plate portions, to which a left-right shaft 29 is fixed. On both sides of this shaft 29, a multi-stage roller that integrates a large-diameter first roller 30 and a small-diameter second roller 31 is fitted on the outside so that it can rotate freely, and further outside, a small-diameter third roller 32 is fitted freely. It is rotatably attached to the outside. Here, the first roller 30 is
It constitutes a variable speed transmission section that can freely support the passive section 15 from below.

A warehousing conveyance device 33 is provided on the side of the rotating shelf device 2.
and an unloading conveyance device 34 are provided. These conveyance devices 33 and 34 have the same or almost the same shape, and will be described below with the same reference numerals, but they can also be formed into one line. In other words, numeral 36 denotes a conveyor guide rail having an I-shaped cross section, which is supported by support frames 36 at predetermined intervals and is disposed above the floor surface. The support frame 36 is connected to a lower portion of one side of the conveyor guide rail 35. Upper guide surface 3
5a, and the lower part of the other completely open side surface is formed as a lower guide surface 35b. 3
Reference numeral 7 denotes a conveyance section carrier which is supported and guided by the conveyance section guide rail 35 and can freely run on a fixed path.
The main body 38 is formed into a T-shape when viewed from the front by the leg plate 8A and the leg plate 38B.
an upper roller 40 that is rotatably mounted around the upper guide surface 35a and that can freely come into contact with the upper guide surface 35a;
A lower roller 42 is attached to the lower end of the top plate 8B so as to be rotatable around the vertical axis 41 and can freely come into contact with the lower guide surface 35b, bumpers 43 are attached to both the front and rear sides of the top plate 38A, and the other parts of the top plate 38A. It is composed of a bifurcated mounting portion 44 formed on the upper surface of the end, and a plate-shaped passive portion 45 attached to the lower surface of one end of the top plate 38A. Two rollers 40 and 42 are arranged in the front and rear directions (a plurality of rollers), and a case 17 in which articles 16 can be stored is placed on the placing part 44 via a pallet 18. 46 is the transport section guide rail 35
A transport unit drive device disposed along the transport unit provides a running force to the transport unit carrier 37. In other words, the main body of the conveyor drive device 46 is a shape rail 47 that is integrated with the conveyor guide rail 36 and the support frame 36, and the shape rail 47 has a slit 48 on the top surface.
A storage space 49 is formed. The bottom side of the storage space 49 is formed in a concave shape, and side mounting grooves 50 are formed on each of the left and right side surfaces, and upper mounting grooves 51 are formed on each of the left and right pair of upward facing surfaces. A first rail 52 is attached to the side attachment groove 50, and this first rail 5
2 is selectively attached to and detachable from the second rail 53 and the third rail 54 attached to the upper attachment groove 51. Reference numeral 55 denotes a roller chain which is an example of an endless rotating body, and a link plate at a proper position has an upwardly extending plate portion, and a left-right direction shaft 56 is fixed to this extending plate portion. On both sides of this shaft 56, a multi-stage roller that integrates a large-diameter first roller 57 and a small-diameter second roller 58 is fitted so that it can rotate freely, and a small-diameter third roller 59 is mounted on the outside. It is rotatably attached to the outside. Here, the first roller 57 constitutes a transmission section that can freely support the passive section 45 from below.

In the surrounding wall body 1, a warehousing side transfer device 61 is disposed between the carousel device 2 and the warehousing conveyance device 33, and a transfer device 61 on the warehousing side is disposed between the carousel device 2 and the warehousing conveyance device 3.
An exit-side transfer device 62 is disposed between the warehouse and the warehouse 4, and an entrance 63 and an exit 64 are formed in the enclosure 1. Both transfer devices 62 are carriers 7 and 37.
Since they have the same or almost the same shape, they will be described below with the same reference numerals, but a single unit may be used for loading and unloading. That is, a post 65 is erected from the floor surface, and an elevating frame 67 is provided which is guided by a rail 66 attached to the post 65 via a plurality of rollers. An elevating drive device 68 is disposed at the upper end of the post 65, and the elevating drive device 68 includes a driving wheel body interlocked with a motor, a chain suspended from the driving wheel body, and the like. The outer end of the chain is connected to the lifting frame 67, and the inner end is connected to a counterweight disposed within the post 65. On the elevating frame 67, there is a multi-stage fork 69 that can move in and out in the horizontal direction.
will be placed.

Next, the operation of the above embodiment will be explained.

In both conveying devices 33 and 34, the conveying portion carrier 37 is driven by the moving force of the conveying portion driving device 46.
That is, the passive part 45 of the conveying part carrier 37 is
The driven part 45 is placed on the roller 52, and at this time the driven part 45 is strongly pressed against the first roller 52 by the load on the carrier 37 side, and the contact direction of the upper roller 40 with respect to the upper guide surface 35a and the lower roller 4
Since the direction of contact with the lower guide surface 35b of 2 is in the opposite direction, it is supported and guided without falling or wobbling. Therefore, as the roller chain 55 moves, the conveying unit carrier 37 travels on a fixed path, but when the first roller 57 is received by the first rail 52 as shown by the solid line in FIG. , because the first roller 57 frictionally rolls on the first rail 52 due to the movement of the roller chain 55, the conveyance unit carrier 37 has a large-diameter first roller 57 that moves at the moving speed of the roller chain 55.
It will be transported at a medium speed, including the forward feed speed due to the rotation of . Further, when the second roller 58 is received by the second rail 53 as shown by the imaginary line in FIG.
The roller 58 frictionally rolls on the second rail 53, and the first roller 57, which is integrated with the second roller 58, rotates at a high circumferential speed (increased speed). is transported at a high speed that is the moving speed of the roller chain 55 plus the forward feeding speed due to the accelerated rotation of the first roller 57. Furthermore, when the third roller 59 is received by the third rail 54 as shown by the imaginary line in FIG. 4, the third roller 59 frictionally rolls on the third rail 54 due to the movement of the roller chain 55. 1
Since no rotational force is applied to the roller 57,
The conveying unit carrier 37 supported by the first roller 57 whose rotation is stopped is conveyed at the same low speed as the roller chain 55.

The transport section carrier 37 on the warehousing transport device 33 side, which has traveled at any of the speeds mentioned above, is stopped facing the warehousing side transfer device 61. Then, by the combination of the vertical movement of the lifting frame 67 in the storage side transfer device 61 and the movement of the forks 69 into and out, the cases 17 carried by the carrier 37 of the transport section are received together with the pallet 18 on the side of the lifting frame 67. It will be done. In addition, the empty transport carrier 37 on the outgoing conveyance device 34 side is stopped facing the outgoing side transfer device 62, and the cases 17 on the lifting frame 67 are moved together with the pallets 18 by a combination operation opposite to that on the incoming side. It is passed onto the mounting section 44 of the transport section carrier 37.

In the rotating shelf device 2, the shelf carrier 7 of each rotating shelf 4 receives the moving force of the shelf driving device 19, and continuously travels in either the forward or reverse direction for each stage. That is, the passive part 15 of the shelf carrier 7 is placed on the first roller 30. At this time, the driven portion 15 is strongly pressed against the first roller 30 due to the load on the shelf carrier 7 side, and the direction in which the upper roller 10 contacts the upper guide surface 5a and the lower roller 1
Since the direction of contact with the lower guide surface 5b of 2 is in the opposite direction, it is supported and guided without falling or wobbling. Therefore, roller chain 2
As the shelf carrier 8 moves, the shelf carrier 7 travels on a fixed path, and when the second roller 31 is received by the second rail 26 as shown by the solid line in FIG. Due to the movement, the second roller 31 frictionally rolls on the second rail 26,
The first roller 30, which is integrated with the second roller 31, rotates at a higher circumferential speed (increased speed), and the shelf carrier 7 changes the speed of the first roller 30 to the moving speed of the roller chain 28. It will travel at a high speed with the addition of forward feed speed due to increased rotation. Note that when the first roller 30 is received by the first rail 25 as shown in the imaginary line in FIG. 3, the first roller 30 frictionally rolls on the first rail 25 due to the movement of the roller chain 28. The shelf carrier 7 travels at a medium speed that is the moving speed of the roller chain 28 plus the forward feed speed caused by the rotation of the large-diameter first roller 30. Also the third
When the third roller 32 is received by the third rail 27 as shown by the imaginary line in the figure, the third roller 32 frictionally rolls on the third rail 27 due to the movement of the roller chain 28, but the first roller 32 Since no rotational force is applied to the first
The shelf carrier 7 supported by the rollers 30 will run at the same low speed as the roller chain 28.

With respect to the rotating shelf device 2 in which the shelf carrier 7 is traveling at one of the speeds mentioned above, the storage of the cases 12 by the warehousing side transfer device 61 and the unloading of the cases 17 by the warehousing side transfer device 62 are performed. will be carried out. That is, in warehousing, the target empty shelf carrier 7 in the rotating shelf 4 of the target stage is stopped facing the warehousing side transfer device 61 based on a command. Then, by the above-described combined operation of the warehousing side transfer device 61, the case 17 on the lifting frame 57 is transferred together with the pallet 18 onto the placement section 14 of the shelf carrier 7. In addition, for unloading, the target shelf carrier 7 in the rotating shelf 4 of the target stage is stopped facing the unloading side transfer device 62 based on the command. The cases 17 on the shelf carrier 7 are then transferred together with the pallet 18 onto the lifting frame 67 by the above-described combined operation of the delivery side transfer device 62.

When warehousing, by selecting the stage of the rotating shelf section 4 for each type of article 16, for example, cases 17 containing articles 16 of the same type can be stored in the same tier for sorting. can.

When the traveling speed of the shelf carrier 7 in the rotating shelf device 2 is increased (increased) as shown by the solid line in FIG. 3, the shelf carrier 7 can travel at high speed while the roller chain 28 is driven at a low speed. As a result, the shelf drive device 19 including the roller chain 28
While keeping noise levels low, shelves can be moved quickly for loading and unloading. However, if high-speed conveyance is not desired depending on the type of article 16, some or all of the stages may be switched to medium or low speed as shown by the imaginary lines in FIG.

As a driving method using the shelf drive device 19 and the conveyor drive device 46, the passive parts 15, 45 are placed (press-contacted) on the first rollers 30, 57, and the roller chains 28, 55 and the carriers 7, 37 are not connected. As a result, the tensioning device (take-up device) for the roller chains 28, 55 can be simplified. but,
It may be connected and integrated as a drive type,
Furthermore, the connection/disconnection may be of a dog type.

Both conveyance devices 33 and 34 adopt the above-mentioned mounted (pressure-contact) driving format, and furthermore, by applying the rollers 40 and 42 from the sides to the conveyance section guide rail 35 and guiding them, the conveyance section guide rail 35
and the transport unit carrier 3 with respect to the transport unit drive device 46.
7 can be inserted and removed in the vertical direction, thereby allowing the transport part carrier 37 to be inserted between the transport path and the storage path.
It can be transferred mechanically (automatically) via a transfer device having a lifter, running fork, etc., or manually.

In the above embodiment, the carriers 7, 37 are shown in the form of carts, but they may also be in the form of hanging hangers.

As shown in FIG. 1, by forming a fixed path for the rotating shelf device 2 including meandering portions, efficient two-dimensional arrangement can be achieved.

Effects of the Invention According to the present invention having the above configuration, in a rotating shelf device, the purpose of the rotating shelf of the target stage is The shelf carrier is moved to a predetermined loading/unloading location in the rotary shelf device based on a command so that loading/unloading can be performed. By providing such a rotating shelf device on the side of the transport device, it is possible to receive and store the cargo on the transport path, and in this case, the storage is carried out on the rotating shelves with multiple vertical stages. This allows the process to be carried out efficiently in a narrow occupied space. Furthermore, by making the product types the same for each row, sorting can be performed at the time of storage.

In addition, the drive device for the shelves and conveyance section is composed of an endless rotating body that can be driven forward and backward, and a variable speed transmission section attached to this endless rotating body. Since this section is provided, the carrier can run at high speed while driving the endless rotating body at low speed. As a result, the noise of the drive device can be suppressed to a low level, and shelves can be moved and conveyed quickly, and storage and unloading can be carried out efficiently.

By using a mounting (pressure contact) transmission type as the drive type, the tension device (take-up device) for the endless rotating body can be simplified.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is a perspective view, FIG. 2 is a partially cutaway side view of the warehousing side transfer device, and FIGS. 3 and 4 are main points in FIG. 2. It is an enlarged view of the part. DESCRIPTION OF SYMBOLS 1... Surrounding wall body, 2... Rotating shelf device, 4... Rotating shelf, 5... Shelf guide rail, 7... Shelf carrier, 10... Upper roller, 12... Lower roller, 14... Placement section, 15...Passive section, 17...
case, 18... pallet, 19... shelf drive device, 25... first rail, 26... second rail,
27... Third rail, 28... Roller chain (endless rotating body), 30... First roller (speed change transmission part),
31...Second roller, 32...Third roller, 33
...Incoming transport device, 34...Outgoing transport device, 36
...Conveyance section guide rail, 35a... Upper guide surface, 35b... Lower guide surface, 37... Transport section carrier, 40... Upper roller, 42... Lower roller, 44... Placement section, 45... Passive part, 46...
Conveyance unit drive device, 52...first rail, 53...
Second rail, 54... Third rail, 55... Roller chain (endless rotating body), 57... First roller (transmission part), 58... Second roller, 59... Third roller, 61... Stocking Side transfer device, 62... Delivery side transfer device, 67... Lifting frame, 69... Fork.

Claims (1)

[Claims] 1. An endless shelf guide rail, a shelf carrier that is freely movable while being guided by the shelf guide rail, and a shelf drive device that is disposed along the shelf guide rail and provides running force to the shelf carrier. A rotating shelf device is constructed by arranging a plurality of rotating shelves in the vertical direction, and a conveyor guide rail is provided on the side of the rotary shelf device, and a vehicle is guided by the conveyor guide rail on a fixed path. A conveying device consisting of a freely movable conveying portion carrier and a conveying portion driving device disposed along the conveying portion guide rail and capable of being freely connected to and disconnected from the conveying portion carrier is provided, and the conveying device and the rotary shelf device are provided. cargo can be freely transferred between carriers,
Of the shelf drive device or the conveyance drive device,
At least one of the drive devices includes an endless rotating body that can be driven in forward and reverse directions, and a variable speed transmission section attached to the endless rotating body, and the carrier includes a passive section that can come into contact with the variable speed transmission body from above. Cargo handling equipment using carriers installed.