JP2020196460A - Pallet conveying system - Google Patents

Abstract

To provide a pallet conveying system which can handle a pallet having a different size from the size of an existing pallet, without changing equipment in facilities such as a factory or a warehouse.SOLUTION: A conveying system for conveying a frame pallet P of the size which fits equipment in facilities, and distribution pallets Pa-Pc of the size which does not fit the equipment in the facilities comprises a positioning stopper for placing and immovably restricting the distribution pallets Pa-Pc on an upper face of the frame pallet P. The frame pallet P on which the distribution pallets Pa-Pc are placed can be conveyed by the equipment in the facilities which originally fits the size, by placing the distribution pallets Pa-Pc on the upper face of the frame pallet P to immovably restrict the distribution pallets Pa-Pc by first to third positioning metal fittings 50, 60 and 70. Consequently, products are loaded on the distribution pallets Pa-Pc which do not fit the size and can be transported to the outside, without modifying the equipment in the facilities.SELECTED DRAWING: Figure 1

Description

The present invention relates to a pallet transfer system. More specifically, the present invention relates to a pallet transport system that transports pallets of a size that fits the equipment in the facility and pallets that do not fit.

In recent years, many packages are transported from the shipper to the destination by truck, rail, sea, air, etc., with the package placed on a pallet (loading platform for logistics). Is common.
At the shipping destination, the pallet distribution items that arrive are divided into packages and pallets, the packages are sent to the in-house process, and the used pallets are forwarded to the shipping source. The forwarded pallets are made available for reuse at the shipping source.

Since the above-mentioned pallet transportation has high distribution efficiency, a used pallet collection system has been established as one of the social infrastructures including factories, warehouses, and transportation companies, and in line with this, in factories and warehouses. Equipment is designed on the premise that pallets of a specific size are used for pallet storage / delivery and product loading pallet storage in the warehouse.

By the way, there are various sizes of pallets. For example, the size (W × L × H, unit is mm, the same applies hereinafter) is 1600 × 1600 × 120, and the size (W × L × H) is 1000 × 1200 ×. It is said that there are about 100 types in Japan alone, such as 130.
The specifications of pallet dispensers and roller conveyors are usually determined for the equipment of the factory or warehouse that is the shipping source, according to the pallet of any one size.
On the other hand, the warehouses and delivery areas at the shipping destinations are also designed according to the specific pallet size.

FIG. 10 shows an example of a pallet transfer system used in a facility such as a factory. In the figure, reference numeral S1 is a pallet station for discharging the pallet P from the pallet dispenser D, reference numeral S2 is a loading station for loading the product on the pallet P with a robot R or the like, and reference numeral S3 is a forklift F for the product G together with the pallet P. Indicates the shipping station to be carried out.
RC is a roller conveyor, and pallets P can be sent by connecting stations S1, S2, and S3.
At the shipping station S3, the pallet P on which the product G is placed is placed on a truck for physical distribution by the forklift F, or delivered to the company's automated warehouse.
The pallet P placed on the truck is sent to the shipping destination together with the product, and is returned from the shipping destination along the distribution route. The returned pallet P is stored in the pallet dispenser D, which is one of the facilities in the facility of the shipping source.

The distribution of pallets P is performed as described above, but if the pallet size used by the shipping source and the shipping destination is the same, no particular problem will occur, but if the sizes are different, the conveyor, storage rack, or load in the facility The stacking device cannot be used as it is. In this case, if the equipment in the facility of the shipping source (or shipping destination) is remade according to the pallet size of the shipping destination (or shipping source) or if multiple systems are used, the problem can be solved, but the capital investment becomes large and it is not realistic. Absent.

The prior art of Patent Documents 1 to 3 is a technique capable of variably adjusting the loading area of a pallet. Although the use of such a variable area pallet has the advantage that the product load capacity can be changed in the distribution process, in the facility transportation process, the load area is increased or decreased in the facility. The equipment and pallet size must match. Otherwise, interference will occur in various parts of the facility and smooth transportation will not be possible.

For the above reasons, the current situation is that it is not possible to handle pallets of different sizes with the existing equipment of the shipping source (or shipping destination).

Japanese Unexamined Patent Publication No. 11-29145 Japanese Unexamined Patent Publication No. 2006-282205 Japanese Unexamined Patent Publication No. 2013-119418

In view of the above circumstances, the present invention is a pallet having a size different from that of the existing pallet without changing the pallet size of the equipment in the facility such as a factory or a warehouse or increasing the number of transport systems according to the pallet size type to be handled. It is an object of the present invention to provide a pallet transfer system capable of handling.

The pallet transport system of the first invention is a transport system for transporting a pallet having a size suitable for the equipment in the facility and a distribution pallet having a size not suitable for the equipment in the facility, and is on the upper surface of the pallet. It is characterized in that a positioning stopper is provided for immovably restraining the distribution pallet on which it is placed.
The pallet transfer system of the second invention is characterized in that, in the first invention, the positioning stopper can variably adjust the installation position according to the size of the distribution pallet mounted on the gantry pallet.
In the pallet transfer system of the third invention, in the first invention or the second invention, the positioning stopper is attached to and detached from four pedestals fixed to the four corners of the top plate of the pedestal pallet and the four pedestals with bolts. It is characterized by consisting of four positioning brackets that are freely fixed.
The pallet transfer system of the fourth invention is characterized in that, in the third invention, the pedestal is formed with a female screw hole for fixing the positioning bracket with a bolt.
In the pallet transfer system of the fifth invention, in the third or fourth invention, there are a plurality of types of the distribution pallets having different sizes, and the positioning stopper corresponds to each mounting position of the distribution size having a different size. It is characterized in that it is composed of a plurality of positioning metal fittings having a positioning surface.

According to the first invention, when the physical distribution pallet is placed on the upper surface of the pedestal pallet and the physical distribution pallet is immovably restrained by the positioning stopper, the physical distribution pallet on which the physical distribution pallet is placed is transported by the in-facility equipment having the originally correct size. be able to. Therefore, the products can be loaded on the distribution pallets that do not match the size and used for external transportation without modifying the equipment in the facility.
According to the second invention, since the installation position of the positioning stopper can be variably adjusted according to the size of the distribution pallet mounted on the gantry pallet, even one type of gantry pallet can be used for a plurality of types of distribution pallets. Can be operated.
According to the third invention, when one positioning bracket is fixed to each of the four pedestals provided at the four corners of the pedestal pallet with a total of four bolts, the four corners of the distribution pallet are positioned and immovably restrained. For this reason, it is possible to surely prevent interference with the equipment in the facility during transportation, and it becomes possible to carry out pallet stock, product loading, and export to the outside without any trouble.
According to the fourth invention, the female screw hole has a female screw groove formed in the wall thickness of the pedestal, the number of screw grooves can be increased according to the wall thickness, and the bolt is passed through the bolt insertion hole of the positioning bracket. The bolt fastening force when screwed into the screw hole is improved, and the service life of the gantry pallet is improved.
According to the fifth invention, since a plurality of types of positioning metal fittings are provided according to the distribution pallets having different sizes, it is possible to operate a plurality of types of distribution pallets even with one type of pedestal pallet.

It is explanatory drawing of the pallet transfer system which concerns on this invention. It is explanatory drawing of the gantry pallet P which concerns on one Embodiment of this invention, (A) is a plan view, (B) is a side view. It is explanatory drawing of the pedestal, (A) is a plan view, (B) is a sectional view taken along line BB. It is explanatory drawing of the 1st positioning metal fitting 50, (A) is a plan view, (B) is a BB sectional view. It is explanatory drawing of the 2nd positioning metal fitting 60, (A) is a plan view, (B) is a BB sectional view. It is explanatory drawing of the 3rd positioning metal fitting 70, (A) is a plan view, (B) is a BB sectional view. It is explanatory drawing of the 1st distribution pallet Pa, (A) is a plan view, (B) is a sectional view of BB. It is explanatory drawing of the 2nd distribution pallet Pb, (A) is a plan view, (B) is a sectional view of BB. It is explanatory drawing of the 3rd physical distribution pallet Pc, (A) is a plan view, (B) is a BB sectional view. It is explanatory drawing of the conventional pallet transfer system.

The basic concept of the present invention will be described with reference to FIG.
The basic concept of the present invention is to use a pedestal pallet P having a size suitable for the equipment in the facility and to transport pallets Pa to Pc for distribution having a size not suitable for the equipment in the facility on the upper surface thereof.
The term "in-facility equipment" as used herein refers to pallet dispensers, roller conveyors, loading robots, etc. used in factories, distribution warehouses, and the like. The size of the pallet refers to the width W and the depth L of the pallet among the width W, the depth L, and the height H. Products loaded on pallets include all items used for pallet shipping. Therefore, paper products, especially products in which paper towels, toilet rolls, etc. are stored in cardboard boxes are also included.

The pallet dispenser D in the pallet station S1 is stocked with a distribution pallet Pa or the like placed on the upper surface of the gantry pallet P, and is discharged at an appropriate timing. The discharged pallets are conveyed on the roller conveyor RC with the distribution pallets Pa and the like loaded on the gantry pallets P. During this time, the product G is loaded on the distribution pallet Pa by the robot at the loading station S2. When the pallet after loading the products arrives at the unloading station S3, the distribution pallet Pa and the product G mounted on the pallet Pa are unloaded by the forklift F and transported to a truck or an automated warehouse.

Even if the above-mentioned logistics pallet Pa does not match the size of the facility equipment such as the pallet dispenser D, roller conveyor RC, and loading robot R, the gantry pallet P matches the size, so there is no problem with each station S1 to 1. It can be transported between S3. Then, the pedestal pallet P after the completion of transportation is collected in the facility from the shipping station S3 to the pallet station S1 and reused.

According to the above basic concept of the present invention, since the pedestal pallet P originally has a size suitable for the equipment in the facility, it is not necessary to re-install the pallet dispenser and the roller conveyor.
The distribution pallet Pa is provided to external distribution as usual, collected at the shipping destination, and sent to the shipping source along the distribution route.

Hereinafter, embodiments of the pedestal pallet P, the positioning stopper, and the distribution pallets Pa to Pc shown above will be described.

(Mount pallet P)
The basic structure of the gantry pallet P is the same as that of a known flat pallet. That is, it is one of the pallets for physical distribution that has been used conventionally, and products can be stacked and used for physical distribution. In the present invention, pallets larger in size than the distribution pallets Pa to Pc, which will be described later, are used as the gantry pallets.
The pedestal pallet P is a pallet body made of a known flat pallet with a pedestal 4 described later attached.

As shown in FIG. 2, the pallet body includes a quadrangular framework 1 in a plan view and a fork insertion cylinder 2 passed through the framework 1. Although a high-strength material such as iron is used as the constituent material, it may be composed of plastic or the like.
The frame body 1 is formed by assembling four square pipes, that is, long side square pipes 11 and 11 and short side square pipes 12 and 12, into a quadrangular frame, and four square pipes 11, 11 and 12 , 12 are connected to each other. The connection between the long side square pipes 11 and 11 and the short side square pipes 12 and 12 may be fixed welding or detachable bolting. Square pipes 13 and 13 are welded to the inside of the short side square pipes 12 and 12.

The pair of long side square pipes 11 and 11 are welded so as to be connected by fork insertion cylinders 2 and 2 composed of square pipes. The fork insertion cylinder 2 may have a cavity into which a known forklift claw is inserted, and may have enough strength not to be deformed when lifted by the forklift.
A reinforcing plate 15 is welded to the upper surface of the opening of each fork insertion cylinder 2. The reinforcing plate 15 is also welded to the top plate of the pedestal pallet P (specifically, the top plate of the long side square pipe 11) to prevent deformation due to a load when the forklift is lifted by the claws.

(Positioning stopper)
The positioning stopper used in the present invention includes a pedestal 4 and a positioning bracket. As shown in FIG. 2, the pedestal 4 is fixed to the top surfaces of the four corners of the frame 1 of the pedestal pallet P. That is, the pedestals 4 are provided at four places.

The details of the pedestal 4 will be described with reference to FIG.
The pedestal 4 is composed of an L-shaped metal plate in a plan view. Specifically, the long portion 4a and the short portion 4b are connected at each end and intersect at a right angle. The pedestal 4 itself is welded to the top plates of the square pipes 11 and 12.

The pedestal 4 is formed with a female screw hole 6 for bolting the positioning metal fitting 5. The pallet top plates 11a and 12a on the lower surface of the pedestal 4 may be provided with a through hole coaxial with the female screw hole 6, or may be formed with a coaxial female screw hole.
When the holes of the pallet top plates 11a and 12a are through holes, if the wall thickness of the pedestal 4 is thick, a sufficient number of screw grooves can be secured and a sufficiently strong fastening force can be obtained. Further, when the female screw holes are formed in the pallet top plates 11a and 12a, more screw grooves can be secured, so that a stronger fastening force can be obtained.

Next, three types of positioning brackets will be described.
There are three types of positioning brackets described below, because there are three types of distribution pallets used in correspondence. If the number of types of distribution pallets used is two or less, two or less types of positioning brackets may be used, and if the number of distribution pallets used is four or more, four or more types of positioning brackets may be used.

(1) First positioning bracket 50
The first positioning metal fitting 50 shown in FIG. 4 includes a stopper member 51 and a fixing metal fitting 52, and the stopper member 51 and the fixing metal fitting 52 are welded to each other.
The stopper member 51 is an L-shaped member composed of thick plate members 51a and 51b that intersect at right angles in a plan view. The inner surfaces of the thick plate portions 51a and 51b are positioning surfaces for positioning the distribution pallet Pa, which will be described later.
The fixing bracket 52 is formed with three bolt insertion holes 53. The bolt insertion hole 53 is a through hole having an inner diameter larger than the outer diameter of the bolt 7.
When the three bolts 7 are passed through the three bolt insertion holes 53 and screwed into the three female screw holes 6 of the pedestal 4, the first positioning bracket 50 can be fixed to the pedestal 4 as shown in FIG. ..

(2) Second positioning bracket 60
The second positioning metal fitting 60 shown in FIG. 5 includes a stopper member 61 and a fixing metal fitting 62, and the stopper member 61 and the fixing metal fitting 62 are welded to each other.
The stopper member 61 is an L-shaped member composed of thick plate members 61a and 61b that intersect at right angles in a plan view. The inner surfaces of the thick plate portions 61a and 61b are positioning surfaces for positioning the distribution pallets Pb, which will be described later.
The fixing bracket 62 is formed with two bolt insertion holes 63. The bolt insertion hole 63 is a through hole having an inner diameter larger than the outer diameter of the bolt 7.
When two bolts 7 are passed through the two bolt insertion holes 63 and screwed into the two female screw holes 6 of the pedestal 4, the second positioning bracket 60 can be fixed to the pedestal 4 as shown in FIG. ..

(3) Third positioning bracket 70
The third positioning bracket 70 shown in FIG. 3 is composed of a stopper member 71.
The stopper member 71 is composed of thick plate members 71a and 71b that intersect at right angles in a plan view. The inner surfaces of the thick plate portions 71a and 71b are positioning surfaces for positioning the distribution pallets Pc, which will be described later.
The stopper member 71 is formed with three bolt insertion holes 73. The bolt insertion hole 73 is a through hole having an inner diameter larger than the outer diameter of the bolt 7.
When the three bolts 7 are passed through the three bolt insertion holes 73 and screwed into the three female screw holes 6 of the pedestal 4, the third positioning bracket 70 can be fixed to the pedestal 4 as shown in FIG. ..

(Pallet for logistics)
Logistics pallets are flat pallets that are used for physical distribution by stacking products.
In the present specification, an example in which three types of distribution pallets Pa, Pb, and Pc are placed on the gantry pallet P is shown below.
The distribution pallets Pa, Pb, and Pc are all pallets smaller in size than the gantry pallet P. As for the size of the distribution pallets, the pallet Pa is the smallest, the pallet Pb is in the middle, and the pallet Pc is the largest.

(1) Logistics pallet Pa
FIG. 7 shows a case where the smallest size distribution pallet Pa is placed on the upper surface of the gantry pallet P.
In this case, the first positioning bracket 50 is mounted on the pedestal 4 by using the long fixing bracket 52. In this case, the distance da between the positioning surfaces of the stopper members 51 and 51 in the first positioning brackets 50 and 50 paired in the width direction (horizontal direction in the drawing) uses the second positioning bracket 60 and the third positioning bracket 70. It is narrower than it was. At this time, since the positioning surfaces of the first positioning bracket 50 face the four corners of the small size distribution pallet Pa, when the distribution pallet Pa is placed, it can be positioned in the center of the gantry pallet P and is immovable in the front-back and left-right directions. Can be restrained.

(2) Logistics pallet Pb
FIG. 8 shows a case where an intermediate size distribution pallet Pb is placed on the upper surface of the gantry pallet P.
In this case, the second positioning bracket 60 is mounted on the pedestal 4 using a short fixing bracket 62. In this case, the distance db between the positioning surfaces of the stopper members 61, 61 in the second positioning metal fittings 60, 60 paired in the width direction (horizontal direction in the drawing) is wider than that when the first positioning metal fitting 50 is used, which will be described later. It is narrower than the case where the third positioning metal fitting 70 is used. At this time, since the positioning surfaces of the second positioning bracket 60 face the four corners of the intermediate size distribution pallet Pb, when the distribution pallet Pb is placed, it can be positioned in the center of the gantry pallet P and is immovable in the front-back and left-right directions. Can be restrained.

(3) Logistics pallet Pc
FIG. 9 shows a case where the largest size distribution pallet Pc is placed on the upper surface of the gantry pallet P.
In this case, the third positioning bracket 70 is directly mounted on the pedestal 4. In this case, the distance dc between the positioning surfaces of the third positioning brackets 70, 70 paired in the width direction (horizontal direction in the drawing) is wider than when the first positioning bracket 50 and the second positioning bracket 60 are used. There is. At this time, the positioning surfaces of the third positioning bracket 70 face the four corners of the large-sized distribution pallet Pc. Therefore, when the distribution pallet Pc is placed, it can be positioned at the center of the gantry pallet P, and the front-back and left-right directions can be immovably restrained.

(Operation of pallet transport equipment)
By using the pallet transfer equipment of the above embodiment, it can be operated as follows.
(1) Since a plurality of types of positioning metal fittings 50, 60, and 70 are provided according to different sizes of distribution pallets Pa, Pb, and Pc, a plurality of types of distribution pallets Pa, Pb can be used by using one type of gantry pallet P. , Pc can be operated.
(2) When the four positioning brackets 50 are fixed to the four pedestals 4 provided at the four corners of the pedestal pallet P with bolts 7, the four corners of the distribution pallet Pa are positioned and immovably restrained. The term "immobility" as used herein does not mean that even fine movements are not allowed, and the distribution pallets on the gantry pallets are positioned so that they can be transported within the facility without hindrance and the products can be loaded smoothly. And it means that it should not deviate from that position. Therefore, it is permissible that there is some gap between the distribution pallet and the positioning stopper.
Similarly, when the four positioning brackets 60 are fixed to the four pedestals 4 with the bolts 7, the four corners of the distribution pallet Pb are positioned and immovably restrained. Similarly, when the four positioning brackets 70 are fixed to the four pedestals 4 with the bolts 7, the four corners of the distribution pallet Pc are positioned and immovably restrained.
Therefore, it is possible to surely prevent interference with the equipment in the facility during the transportation of the distribution pallets Pa to Pc, and the pallet stock, the product can be loaded, and the product can be carried out without any trouble.
(3) As described above, when the distribution pallet Pa, Pb or Pc is placed on the upper surface of the gantry pallet P and the distribution pallet Pa, Pb or Pc is immovably restrained by the positioning metal fittings 50, 60 or 70, the distribution pallet Pa , Pb or Pc can be carried on the pedestal pallet P by the equipment in the facility that originally matches the size. Therefore, the products can be loaded on the distribution pallets Pa, Pb or Pc that do not match the size and used for external transportation without modifying the equipment in the facility.

(Other embodiments)
The present invention is characterized in that a positioning stopper for placing the distribution pallet on the upper surface of the gantry pallet and immovably restraining the distribution pallet is provided, and the structure and mechanism of the positioning stopper immobilize the distribution pallet. Anything may be used as long as it can be restrained, and is not limited to that of the embodiment.
In the present invention, when there are a plurality of types of distribution pallets having different sizes, the positioning stopper can variably adjust the installation position according to the size of the distribution pallet mounted on the gantry pallet. Any structure or mechanism may be used for variably adjusting the installation position of the positioning stopper. For example, a positioning stopper may be attached to the short side square pipe, and the short side square pipe may be moved to change the fixed position with respect to the long side square pipe. In this case, the mounting position of the positioning stopper on the short side square pipe may be further changed so that the positioning stopper can be moved along the longitudinal direction of the short side square pipe.
In the present invention, the number of positioning stoppers used is not limited to four, and may be three or two. The physical distribution pallet can be immovably restrained even with three positioning stoppers, and the physical distribution pallet can be immovably restrained by hitting the two opposing corners of the physical distribution pallet with two positioning stoppers.
In the present invention, the parts of the physical distribution pallet to be restrained by the positioning stopper are not limited to the four corners of the physical distribution pallet, and may be four sides. When restraining the four sides, the positioning stopper may be applied to the vicinity of the center of the side, or the positioning stopper may be applied to the portion near the four corners.

As the gantry pallet P, one having a size (W × L) of 1650 × 1320 and being made of iron was used. As shown in FIG. 2, pedestals 4 are attached to the four corners of the pedestal pallet P.
The physical distribution pallet Pa has a size of 1100 × 1100 and is made of synthetic resin. The physical distribution pallet Pb has a size of 1250 × 1050 and is made of synthetic resin. The physical distribution pallet Pc has a size of 1440 × 1130 and is made of synthetic resin.

(Experiment 1)
The distribution pallet Pa was placed on the pedestal pallet P, and as shown in FIG. 7, it was positioned and restrained by the first positioning bracket 50. Then, the pallets were discharged from the pallet dispenser D, and the pallets were conveyed by the roller conveyor RC in the order of the pallet station S1, the loading station S2, and the shipping station S3.
(Experiment 2)
The distribution pallet Pb was placed on the pedestal pallet P, and as shown in FIG. 8, it was positioned and restrained by the second positioning bracket 60. Then, the pallets were discharged from the pallet dispenser D and conveyed by the roller conveyor RC in the order of the pallet station S1, the loading station S2, and the shipping station S3.
(Experiment 3)
The distribution pallet Pc was placed on the pedestal pallet P, and as shown in FIG. 9, it was positioned and restrained by the third positioning bracket 70. Then, the pallets were discharged from the pallet dispenser D and conveyed by the roller conveyor RC in the order of the pallet station S1, the loading station S2, and the shipping station S3.

All of Experiments 1 to 3 can be transported by the roller conveyor RC without interfering with the pallet dispenser D during transportation in the facility, and at the shipping station S3, the distribution pallets Pa to Pc can be smoothly dispensed using a forklift. I was broken.

S1 Pallet Station S2 Loading Station S3 Shipping Station RC Roller Conveyor G Product D Pallet Dispenser F Forklift 1 Frame 2 Fork Insertion Cylinder 4 Pedestal 6 Female Screw Hole 7 Bolt 11 Long Side Square Pipe 12 Short Side Square Pipe 50 1st Positioning bracket 51 Stopper member 52 Fixing bracket 60 Second positioning bracket 61 Stopper member 62 Fixing bracket 70 Third positioning bracket 71 Stopper member P Stand pallet Pa to Pc Logistics pallet

The pallet transport system of the first invention is a transport system for transporting a pedestal pallet having a size suitable for the equipment in the facility and a distribution pallet having a size not suitable for the equipment in the facility.
A positioning stopper for placing the distribution pallet on the upper surface of the gantry pallet and immovably restraining the distribution pallet is provided. There are a plurality of types of distribution pallets having different sizes, and the positioning stopper is the distribution having different sizes. It is characterized in that it is composed of a plurality of positioning metal fittings having positioning surfaces corresponding to each mounting position of the pallet .
Pallet conveying system of the second invention, in the first shot bright, the positioning stopper, and four pedestals fixed to the four corners of the top plate of the frame pallet, detachably bolted to the four pedestals It is characterized in that it is composed of four positioning metal fittings.
The pallet transfer system of the third invention is characterized in that, in the second invention, the pedestal is formed with a female screw hole for fixing the positioning metal fitting with a bolt .

According to the first invention, the following effects are obtained.
a) When the physical distribution pallet is placed on the upper surface of the pedestal pallet and the physical distribution pallet is immovably restrained by the positioning stopper, the physical distribution pallet on which the physical distribution pallet is placed can be transported by the equipment in the facility that originally has the correct size. Therefore, the products can be loaded on the distribution pallets that do not match the size and used for external transportation without modifying the equipment in the facility.
b) Since a plurality of types of positioning metal fittings are provided according to the distribution pallets of different sizes, it is possible to operate a plurality of types of distribution pallets even with one type of pedestal pallet.
According to the second invention, when one positioning bracket is fixed to each of the four pedestals provided at the four corners of the pedestal pallet with a total of four bolts, the four corners of the distribution pallet are positioned and immovably restrained. For this reason, it is possible to surely prevent interference with the equipment in the facility during transportation, and it becomes possible to carry out pallet stock, product loading, and export to the outside without any trouble.
According to the third invention, the female screw hole has a female screw groove formed in the wall thickness of the pedestal, the number of screw grooves can be increased according to the wall thickness, and the bolt is passed through the bolt insertion hole of the positioning metal fitting. The bolt fastening force when screwed into the screw hole is improved, and the service life of the gantry pallet is improved .

Claims (5)

A transport system for transporting pallets of a size that fits the equipment in the facility and pallets for distribution that do not fit the equipment in the facility.
A pallet transfer system characterized in that a positioning stopper for placing the distribution pallet on the upper surface of the gantry pallet and immovably restraining the distribution pallet is provided. The pallet transfer system according to claim 1, wherein the positioning stopper can variably adjust the installation position according to the size of the distribution pallet mounted on the gantry pallet. The positioning stopper is
The four pedestals fixed to the four corners of the top plate of the pedestal pallet,
The pallet transfer system according to claim 1 or 2, wherein the pallet transfer system comprises four positioning metal fittings that are detachably fixed to the four pedestals with bolts. On the pedestal
The pallet transfer system according to claim 3, wherein a female screw hole for fixing the positioning metal fitting with a bolt is formed. There are multiple types of distribution pallets with different sizes.
The pallet transfer system according to claim 3 or 4, wherein the positioning stopper comprises a plurality of positioning metal fittings having positioning surfaces corresponding to the respective mounting positions of the distribution sizes having different sizes.