JP2013039945A - Pallet, auxiliary device for loaning and unloading pallet on cart, and warehouse using pallet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pallet on which a cart can be placed, and that enables easy loading and unloading of the cart with the load and ensures stable conveyance even if the pallet is being placed on the cart.SOLUTION: The pallet 1 for transferring the cart with the load includes: a pallet body 3 where the cart can be placed; guide parts 7a, 7b that prevent the wheels from being derailed when the cart is loaded or unloaded, or while the cart is being placed, and that uses a pair of steps 9a, 9b formed on an upper surface 5 of the pallet body 3 to extend in one direction to correspond to the width of the wheels so that a direction in which the cart is loaded and unloaded is oriented to one direction shown by an arrow I; a first stopper 11 that is detachable from the pallet body 3 at one end 15 in one direction shown by the arrow I; and a second stopper 13 that is detachable from the pallet body 3 at the other end 17 in one direction shown by the arrow I.

Description

  The present invention relates to a pallet, an auxiliary device for loading and unloading a cart on the pallet, and a warehouse using the pallet, and more particularly to a pallet that can transport a loaded cart.

  Some warehouses are called automated warehouses that have become more automated. Patent Document 1 discloses the technical level. In this automatic warehouse, pallets are used to transport loads. And a conveyor and / or a stacker crane are used, and the load loaded on the pallet is stored in the storage space together with the pallet.

  In addition, the load loaded on the pallet is loaded on a cart mounted on a truck bed sent from outside and sent to the warehouse. Then, the cargo is transferred from the cart to the pallet, and the warehousing operation is advanced. On the other hand, at the time of delivery, the load loaded on the pallet is reloaded onto the cart, and the loaded cart is loaded on the truck bed (see also Patent Document 2). That is, the cage car plays a role as a return carriage.

  In order to reduce the burden of labor for loading and unloading such a load, there has been proposed a transfer table for transferring a cart as disclosed in Patent Document 3.

  FIG. 10 is a view showing the car, FIG. 11 is a view showing the car from the direction of the arrow XI in FIG. 10, and FIG. 12 is a view of the car from the XII-XII line in FIG. It is. Hereinafter, the car will be briefly described.

  The cage wheel 51 has a length L1, a width L2, and a height L3, has a rectangular parallelepiped shape as a whole, and includes a bottom plate 53 on which a load is loaded. The wheel width in the longitudinal direction is L4, and the wheel width in the width direction is L5. A wheel 55 is attached to each of the four corners of the lower surface of the bottom plate 53. A front surface 56 constituting one of the side surfaces is open so that loading and unloading can be performed, and forms an open surface portion. On the other hand, the surface which comprises the other three side surfaces is comprised as a fence so that collapse of a load may be prevented by the bar material arrange | positioned at the grid | lattice form. That is, the back surface 57, the right surface 59, and the left surface 61 form a surface portion closed by bars arranged in a lattice shape so that the loaded load does not pass due to the collapse of the load. The top surface is also open, forming an open surface portion.

JP 2006-264894 A JP 2003-276808 A JP 2004-83076 A

  However, since the car is unstable due to the wheels, it cannot be transported by a belt conveyor. As described above, the pallet is transported and the like, and the pallet is required separately from the car for transporting and storing the load in the warehouse. As a result, reloading between the car and the pallet also occurs, and the car after the load is reloaded is placed flat, so that a large space for the flat is required.

  Therefore, the present invention provides a pallet that can be mounted and unloaded with the cart loaded and loaded with ease, and can be stably transported even when mounted. Is the first purpose. In addition to the first object, the second object of the present invention is to provide a pallet in which a load loaded on the car is integrated with the car to prevent collapse. And Furthermore, a third object of the present invention is to provide an auxiliary device that makes it easy to get on and off for placing a cart on such a pallet. Furthermore, this invention makes it the 4th objective to provide the warehouse which can make the flat placement space of a cage car unnecessary using such a pallet.

  The present invention according to the first aspect is a pallet capable of transporting a loaded cart, and a pallet main body on which the cart can be placed, and when placing or unloading the cart, or a loaded state The one direction formed on the upper surface of the pallet main body with a width corresponding to the width of the wheel in order to prevent the wheel from coming off and to define the direction in which the car gets on and off in one direction. A guide portion using a pair of steps extending to the pallet body, a first stopper portion detachable on one end side in the one direction relative to the pallet body, and the other in the one direction relative to the pallet body. And a second stopper portion detachable on the end side.

  According to a second aspect of the present invention, in the first aspect of the present invention, the pallet main body includes a pallet-side closed surface portion formed upward from the upper surface of the pallet body, A closed surface portion on the side of the car vehicle that prevents the stacked load from passing upward from the upper surface of the provided bottom plate, and an open surface portion on the side of the car vehicle that is in an open state are formed, The closed surface portion on the basket car side includes at least a pair of portions formed perpendicular to the direction in which the car gets on and off, and the closed surface portion on the pallet side passes through the wheel in the guide portion. Provided on the outside of the region to be formed, and is formed at a position covering at least the open surface portion on the basket car side in the above-described placement state, and in the above-described placement state, the closed surface portion on the basket car side and the pallet side Due to the closed surface part of It is to prevent the passage of the load.

  The present invention according to a third aspect is the present invention according to the second aspect, wherein the closed surface portion on the side of the car vehicle is at least one end side and the other end side in the direction in which the car gets on and off at the bottom plate. A pair of closed surface portions on the pallet side are provided outside the region through which the wheel passes, corresponding to each of the pair of steps of the guide portion, and the car is on and off. It does not close the space.

  According to a fourth aspect of the present invention, in any one of the first to third aspects of the present invention, the present invention includes an insertion port into which a fork of a forklift formed on the pallet body can be inserted.

  The present invention according to a fifth aspect is an auxiliary device used for placing a loaded cart on the pallet according to any one of the first to fourth aspects, wherein the cart It is an auxiliary | assistant apparatus provided with the receiving mechanism which receives the said cage | basket | car with which the load has arisen when putting on a pallet and setting it as a mounting state.

  The present invention according to a sixth aspect is an auxiliary device used for placing a loaded cart on the pallet according to any one of the first to fourth aspects, wherein This is an auxiliary device provided with an extrusion mechanism that pushes out the car to start moving the car that is under load when the car is unloaded from the pallet.

  According to a seventh aspect of the present invention, there is provided a warehouse having a storage space for storing a load, comprising the pallet according to any one of the first to fourth aspects, wherein a loaded cart is loaded on the pallet. And can be stored in the storage space together with the pallet.

  According to the first aspect of the present invention, the cart can be placed using the pallet body. Thereby, a cart can be conveyed with the load loaded. In particular, a guide portion using a pair of steps extending in one direction with a width corresponding to the width of the wheel of the car is formed on the top surface of the pallet body. It is possible to prevent the wheels from falling off in the set state and to define the direction in which the car gets on and off as the one direction. Accordingly, the cart can be easily put on and off, and stable conveyance can be performed even when the car is placed. Furthermore, a first stopper portion detachable on one end side in the one direction with respect to the pallet body and a second stopper portion detachable on the other end side are provided, whereby the first stopper portion side is provided. It is also possible to get on and off the car from the second stopper portion side, and to get on and off the car more easily.

  According to the 2nd viewpoint of this invention, in addition to the effect by a 1st viewpoint, the following effects are acquired.

  The basket car includes a closed surface part on the side of the car car that prevents the loaded cargo from passing upward from the top surface of the bottom plate provided with wheels, and an open surface part on the side of the car car in an open state. Is formed. As a result, loading and unloading of the cargo onto the car can be easily performed by the open surface portion, and the collapse of the load can be prevented by the closed surface portion. In addition, a pair of closed surface portions on the side of the car is formed at positions extending at least in the direction perpendicular to the direction of getting on and off. Therefore, when placing on the pallet main body called getting on and off, there is a closed surface portion in the direction in which the same pair of guides as the direction in which the force is easily applied to the load, and it is possible to prevent load collapse at the time of getting on and off. .

  On the pallet side, from the viewpoint of getting on and off the car, it is desirable that the corresponding surface portion be open. There is an open surface portion in the car, but this is not usually formed in a portion corresponding to getting on and off. According to the second aspect of the present invention, by forming a closed surface portion on the pallet side corresponding to the open surface portion, it is possible to prevent the collapse of the load together with the closed surface portion on the basket car side, The pallet and the cart can reliably carry and store the load.

  According to the 3rd viewpoint of this invention, in addition to the effect of the 1st or 2nd viewpoint, the following effects are acquired. The closed surface portion on the side of the car is formed at a position spreading in, for example, a parallel direction with respect to one direction in which the pair of guide portions in the loaded state of the pallet main body is extended. The open surface portion on the side of the cage is generally formed at a position along one of the pair of guide portions. According to the 3rd viewpoint of this invention, the closed surface part by the side of a pallet is formed in the outer side of the area | region where a wheel passes in each of a pair of level | step difference of a guide part. As a result, there is a closed surface part on the pallet side at the position covering it, regardless of whether the open surface part on the car side is on the left or right side when getting on and off, making it unnecessary to consider the direction when getting on and off the car It is possible to easily get on and off, and to reliably prevent the load from collapsing.

  According to the fourth aspect of the present invention, in addition to the effects of any one of the first to third aspects, it can also be lifted and conveyed by a forklift. In particular, it is possible not only to transport a pallet loaded with carts by a conveyor but also to transport it by a forklift, so that urgent transport can be handled.

  According to the fifth and sixth aspects of the present invention, assistance is provided for getting on and off to place the car on the pallet according to any one of the first to fourth aspects, and the load is loaded by the load. Even a car with a car can easily get on and off the pallet. That is, according to the 5th viewpoint, it can be received by the receiving mechanism which receives the cage car in which the load is generated. Thereby, it is possible to perform reliable positioning without causing damage to the pallet and to stably place the pallet. Further, according to the sixth aspect, the basket wheel in which the load is generated is heavy and requires a large force to start moving, but can be easily pushed out by being pushed out by the pushing mechanism.

  According to a seventh aspect of the present invention, a warehouse having a storage space for storing a load includes the pallet according to any one of the first to fourth aspects, and a loaded cart It can be placed on the pallet and stored in the storage space together with the pallet. Since the car is also stored in the storage space, there is no need for a separate storage space for the car, and there is no need to place the car horizontally. Therefore, it is possible to obtain a warehouse that saves space by effectively using the space. Furthermore, by linking management of the storage space of the warehouse and the car, unnecessary car is unnecessary. In addition, when managing the warehouse, there is no need to reload the load, shorten the lead time for receiving and unloading, and eliminate the need for work processes required for manual reloading. , Automation can be further advanced.

It is the perspective view which showed an example of the pallet which concerns on embodiment of this invention. It is the figure which showed the automatic warehouse in order to demonstrate the storage space in which the pallet of FIG. 1 is stored. It is the figure which looked at the automatic warehouse from the direction of arrow III of FIG. It is a figure for demonstrating the state which puts a cart on the pallet mounted on the conveyor in order to convey a cart with a conveyor in an automatic warehouse. It is a figure for demonstrating the state which unloads a cart from the pallet on the conveyor in which the cart was mounted in the automatic warehouse. It is the perspective view which showed the other example of the pallet which concerns on embodiment of this invention. It is the figure which looked at the pallet from the direction of arrow VII of FIG. It is the figure which looked at the pallet from the direction of arrow VIII of FIG. It is the figure which looked at the pallet from the direction of arrow IX of FIG. It is the figure which showed the cage car. It is the figure which looked at the cage car from the direction of arrow XI of FIG. It is the figure which looked at the cage car from the XII-XII line of FIG.

  FIG. 1 is a perspective view showing an example of a pallet according to an embodiment of the present invention.

  The pallet 1 is a rectangular and flat pallet main body 3 (an example of a “pallet main body” in the claims of the present application) and a pair of guide portions formed extending along a pair of opposite sides of the upper surface 5 of the pallet main body 3. 7a, 7b (an example of the “guide part” in the claims of the present application) and the guide part 7a, 7b of the pallet main body 3 are provided with detachable stopper parts 11 at the center positions of a pair of facing sides. , 13 (an example of the “stopper portion” of the present invention).

  The pallet body 3 has a mounting surface 6 on the upper surface 5 on which a car 51 shown in FIG. 10 or the like (an example of a “car car” in the claims of the present application) can be mounted. The guide portions 7a and 7b prevent the wheels 55 of the car wheel 51 from being derailed when the car wheel 51 is placed or lowered in the direction indicated by the arrow I or when the car wheel 51 is placed on the mounting surface 6. A pair of steps 9a extending in the direction of arrow I facing each other at a distance separated by a width (L6) corresponding to the width of the wheel 55 in order to define the direction in which the car 51 is getting on and off in the direction indicated by arrow I. , 9b are formed on the upper surface 5. The stopper portion 11 is disposed on the one end 15 side in the direction indicated by the arrow I in the pallet main body 3, and the stopper portion 13 is disposed on the other end 17 side in the direction indicated by the arrow I in the pallet main body 3.

  In the pallet 1 having such a configuration, the following can be said. First, the cart 51 can be placed by the pallet body 3. Thereby, the cart 51 can be conveyed with the load being loaded. In particular, on the upper surface 5 of the pallet body 3, guide portions 7a and 7b using a pair of steps 9a and 9b are formed, and when the car 51 is put on or taken down, or placed on the placement surface 6 In addition to preventing the wheel 55 from being derailed, the direction in which the car 51 gets on and off can be defined as one direction, which is the direction of the arrow I. Accordingly, the cart 51 can be easily put on and off, and stable conveyance can be performed even when the car is placed. Furthermore, the stoppers 11 and 13 can be used to get on and off the car 51 from the stopper 11 and to get on and off the car 51 from the stopper 13, so that the car 51 can be put on and off more easily. .

  Furthermore, the pallet 1 has a fork insertion port 19 (an example of “insertion port” in the claims) having two ports on the lower side of the stopper portion 11 and the stopper portion 13. Thereby, it can also be lifted and conveyed by a forklift. In particular, not only can the pallet 1 loaded with the car 51 be transported by a conveyor, but can also be transported by a forklift, which can cope with urgent transport.

  FIG. 2 is a view showing an automatic warehouse for explaining a storage space in which the pallet of FIG. 1 is stored. FIG. 3 is a view of the automatic warehouse as viewed from the direction of arrow III in FIG.

  The automatic warehouse 21 is provided with two stacker cranes 23. The storage space 24 that can store the pallet 1 on which the loaded cart 51 is placed is prepared with the number of shelves of 4 rows × 12 stations × 8 stages−12 shelves = 372 shelves. In addition, six conveyors 25 are provided for transporting the carts 51 loaded with loads that can be transported by the pallet 1. The management terminal 26 manages the relationship among the storage space 24, the pallet 1, the car 51, and the load.

  In this manner, the loaded cart 51 can be placed on the pallet 1 and stored in the storage space 24 together with the pallet 1. The cart 51 is also stored in the storage space 24. A separate storage space is not required, and the basket 51 is not required to be laid flat. Therefore, an automatic warehouse 21 that saves space by effectively using the space can be obtained. Furthermore, the management of the storage space 24 and the car 51 of the automatic warehouse 21 is linked by the management terminal 26, so that the car 51 more than necessary becomes unnecessary. In addition, when managing an automated warehouse, it is not necessary to transship the load, shorten the lead time for warehousing and unloading work, and eliminate the need for work processes required for manual transshipment. As a result, an automatic warehouse 21 that can further automate is obtained.

  FIG. 4 is a view for explaining a state in which the cart is placed on a pallet placed on the conveyor in order to transport the cart with the conveyor in the automatic warehouse.

  One of the stopper parts 11 and 13 of the pallet 1 is removed and the pallet 1 is placed on the conveyor 25, and the pallet 1 is in a state where the height of the upper surface 5 and the road surface 31 on which the car 51 moves is matched. And positioned with respect to the wall surface 33 connected to the road surface 31 via a fixed stopper 35. The car 51 is pushed against the pallet 1 from the road surface 31 side, and the car 51 is placed on the placement surface 6 of the pallet 1. At this time, if a load is loaded on the cage wheel 51, the load is applied, and a large force may be applied to the stopper portion 11 (13). As a result, the stopper portion 11 (13) may be damaged. Therefore, here, an auxiliary device for placing the cart 51 on the pallet 1 is used. The auxiliary device sufficiently positions the pallet 1 and substitutes the force received by the stopper portion 11 (13). A receiving mechanism 37 for receiving the basket car 51 is provided.

  FIG. 5 is a view for explaining a state in which the cart is lowered from the pallet on the conveyor on which the cart is placed in the automatic warehouse.

  Contrary to the case of FIG. 4, when the vehicle is lowered, a large force is required to start moving the car 51. Therefore, here, an auxiliary device for lowering the loaded cart 51 from the pallet 1 is used, and the auxiliary device includes an extrusion mechanism 39 that pushes out the cart 51.

  FIG. 6 is a perspective view showing another example of the pallet according to the embodiment of the present invention. FIG. 7 is a view of the pallet viewed from the direction of arrow VII in FIG. FIG. 8 is a view of the pallet viewed from the direction of arrow VIII in FIG. FIG. 9 is a view of the pallet viewed from the direction of the arrow IX in FIG.

  Differences from the pallet 1 shown in FIG. 1 will be described. The pallet 41 has a fall-preventing fence 43a in which bars are assembled in a lattice shape upward from the position of the guide portion 7a on the upper surface 5 of the pallet body 3 (the “closed surface portion on the pallet side” in the claims). Is provided), and an anti-falling fence 43b (a “closed surface portion on the pallet side” in the claims of the present application) in which bars are assembled in the same lattice form upward from the position of the guide portion 7b. ) Is provided.

  The relationship between the fences 43a and 43b and the car 51 will be described. A front surface 56 (an example of “an open surface portion on the side of the cage car” in the claims of the present application) that constitutes one of the side surfaces of the cage car 51 is open so that the cargo can be loaded and unloaded. The other three side surfaces are a back surface 57, a right surface 59, and a left surface 61 (an example of a “closed surface portion on the side of the car” in the claims of the present application, and the right surface 59 and the left surface 61 are “the basket car” in the claims of the present application. ”Is an example of“ parts formed perpendicular to the direction of getting on and off ”.)) Is a closed surface part formed by a fence made of bars arranged in a grid so that the loaded load does not pass by collapse of the load doing. The fences 43a and 43b are in a positional relationship that covers the front surface 56 and the back surface 57 of the car 51. In particular, the fence 43a or the fence 43b that covers the front surface 56 that is an open surface portion of the cage car 51 is an opening that may occur when the cage car 51 is transported by the conveyor or lifted by the stacker crane 23. The collapse of the load from the front surface 56 is prevented. As a result, the cargo truck 51 and the pallet 41 can reliably prevent the collapse of the load loaded on the basket car 51. Further, either one of the fence 43a and the fence 43b can cover the open front 51 of the cage car 51, but by providing both the fence 43a and the fence 43b, the cage car 51 is opened. It is possible to easily get on and off the car 51 without considering the orientation when the car 51 is getting on and off whether the front surface 51 facing the fence 43a or the fence 43b.

  In addition, although the cage | basket | car 51 was made into the closed surface part by the fence so that the back surface 57 may also prevent a load from passing by collapse of a load, the open | released surface part may be sufficient. Even with the opened surface portion, the same effect as in the case of the closed surface portion can be obtained for the pallet 41.

  Moreover, although the closed surface part of the cage wheel 51 and the closed surface part of the pallet 41 are both lattice-shaped fences, the shape is not limited to this, and may be a shape that is completely covered with a plate, for example.

  Furthermore, although the steps 9a and 9b of the guide portions 7a and 7b are made higher on the outside, the outside may be made lower if the guide function is performed to prevent the wheel from coming off.

  DESCRIPTION OF SYMBOLS 1,41 ... Pallet, 3 ... Pallet main body, 5 ... Upper surface, 6 ... Mounting surface, 7a, 7b ... Guide part, 9a, 9b ... Step, 11, 13, ..Stopper portion, 15 ... one end, 17 ... other end, 19 ... fork insertion port, 51 ... basket, 21 ... automatic warehouse, 24 ... storage space, 37 ... Reception mechanism, 39 ... Extrusion mechanism, 43a, 43b ... Fence

Claims (7)

A pallet that can transport a loaded cart,
A pallet body on which the car can be placed;
Corresponding to the width of the wheel in order to prevent the wheel from falling off when the car is put on or off, or in the mounted state, and to define the direction in which the car gets on and off in one direction. A guide portion using a pair of steps extending in the one direction formed on the top surface of the pallet body in width;
A first stopper portion detachable on one end side in the one direction with respect to the pallet body;
A pallet comprising: a second stopper portion detachably attached to the pallet body on the other end side in the one direction. A pallet side closed surface portion formed upward from the upper surface of the pallet body,
In the basket car,
A closed surface portion on the side of the cage that prevents the load loaded from the upper surface of the bottom plate provided with the wheels upward;
An open surface portion on the side of the cage car that is in an open state is formed,
The closed surface portion on the side of the car includes at least a part formed perpendicular to the direction in which the car gets on and off,
The closed surface portion on the pallet side is
In the guide portion, provided outside the region through which the wheel passes, is formed at a position that covers at least the open surface portion on the basket car side in the above-described placement state,
2. The pallet according to claim 1, wherein the cargo is prevented from passing by the closed surface portion on the basket car side and the closed surface portion on the pallet side in the placement state. The closed surface portion on the car car side is formed on each of one end side and the other end side in the direction in which the car car gets on and off at least on the bottom plate,
The closed surface portion on the pallet side is provided in a pair corresponding to each of the pair of steps of the guide portion, outside the region through which the wheel passes, and does not close the space where the car gets on and off. The pallet according to claim 2.   The pallet in any one of Claim 1 to 3 provided with the insertion port which can insert the fork of the forklift formed in the said pallet main body. An auxiliary device used for placing a loaded cart on the pallet according to any one of claims 1 to 4,
An auxiliary device comprising a receiving mechanism that receives the basket car that is loaded when the car is placed on the pallet to be placed. An auxiliary device used for placing a loaded cart on the pallet according to any one of claims 1 to 4,
An auxiliary device comprising an extrusion mechanism that pushes out the cart to start moving the cart that is under load when the cart in the mounted state is lowered from the pallet. A warehouse with storage space for storing loads,
A pallet according to any one of claims 1 to 4,
A warehouse in which a loaded cart can be placed on the pallet and stored in the storage space together with the pallet.

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