KR20240023954A - The assembly type pallet - Google Patents

Abstract

The present invention enables the reuse of pallets, and in particular, the base plate is molded from synthetic resin material, and the left and right frames that make up the wall and the front and rear frames are molded from metal material, thereby reducing material costs and providing excellent strength and stable loading of goods. We provide prefabricated pallets that implement the capabilities.

Description

The assembly type pallet}

The present invention relates to a prefabricated pallet, and more specifically, the base plate is molded from synthetic resin, and the left and right frames constituting the wall and the front and rear frames are molded from metal to reduce material costs and have excellent strength and are stable. It is about a prefabricated pallet that realizes loading capacity.

As is well known, pallets are used to load and transport multiple items, and are used in a variety of ways throughout the industry.

The types of pallets are divided into plate type and box type depending on their shape.

The former, plate-type pallet, is constructed by installing brackets to secure parts on a floor frame without using side walls. This plate-type pallet is designed to be suitable for loading large parts, especially vehicles manufactured in the form of semi-finished products.

The latter, a box-type pallet, is built vertically on top of multiple floor frames and is made up of side walls that form the four sides of the pallet, making it suitable for loading small parts.

On the other hand, the box-type pallet described above has the disadvantage of exposing many problems during storage and transportation compared to the plate-type pallet because the volume of the pallet increases due to the side walls.

A representative prior art related to a box-type pallet is the Republic of Korea Intellectual Property Office Patent No. 10-1611095 (laminated connection unit of folding pallet).

The prior art includes a base frame, a vertical frame installed vertically at the outer edge of the base frame, and a horizontal frame positioned in a horizontally lying state between the vertical frames, and both ends of which are connected and fixed to the vertical frame with a connecting bracket. In the foldable pallet composed of a frame, a support frame having a length corresponding to the foldable pallet and having a cross-section formed to have a "ㄷ" shape is welded and fixed to the bottom of the base frame, and an upward support frame is attached to the bottom end of the support frame. a locking piece that is bent vertically, a fixing frame accommodated inside both ends of the support frame, and a plurality of pieces are formed on the bottom surface of the fixing frame at a predetermined distance apart from each other, and the locking pieces of the support frame are selectively fastened to the fixing frame. A connection unit is installed to connect and secure two foldable pallets stacked upwards and downwards, which are made of the same structure and consist of fastening slots for connecting and fixing the frame to the support frame and holes formed between the fastening slots, and the fixing unit is installed. A protrusion protruding from the upper surface of a connecting bracket provided on a foldable pallet disposed below the foldable pallet is inserted into the hole of the frame, and is configured to connect and fix two foldable pallets stacked upward and downward.

Meanwhile, in a conventional folding pallet, such as the prior art, the base frame constituting the floor and the support frame and vertical frame constituting the wall are formed of the same metal material. This facilitates connection work through welding, and also the metal The purpose is to allow items to be stored more stably through strength. However, metal causes an increase in the manufacturing cost of pallets due to the high cost of the material itself.

In addition, conventional folding pallets are partially welded in many places on the pallet in order to achieve quick productivity and eliminate inconvenience in use. This welding operation causes much inconvenience when the pallet is later separated and reused.

In addition, conventional foldable pallets have grooves into which forks of a forklift can be inserted only on both sides of the base plate in the longitudinal direction, so there are many space restrictions when transporting and moving the pallet using a forklift.

In addition, since the conventional vertical and horizontal frames do not have a structure that can be folded in half, when removing various items contained in a pallet, the height of the vertical and horizontal frames makes it difficult to remove the items before separating them from the base frame. Since this is not possible, there are many inconveniences in using it.

Document 0001: Republic of Korea Intellectual Property Office Registered Patent Publication No. 10-1611095

Therefore, the purpose of the present invention to solve the problems described above is to mold the base with synthetic resin, and the left and right frames and the front and rear frames constituting the wall are molded with metal to reduce material costs and have excellent strength. The goal is to provide prefabricated pallets that provide stable loading capacity.

Another purpose of the present invention is to enable the reuse of pallets and to more easily fold the left and right frames and front and rear frames, thereby reducing the volume and allowing the prefabricated pallets to be stacked in multiple stages, allowing a large amount of pallets to be stored without space constraints. We provide prefabricated pallets that can be loaded.

Another object of the present invention is to allow the right frame and front frame to be folded in half, and even if the connection brackets that secure the left and right frames and the front and rear frames to the base plate are manufactured in one shape, they can be grafted onto all four corners of each frame. We provide prefabricated pallets that can be ordered and used.

In order to achieve the above-described object, the present invention provides a prefabricated pallet, which includes a base plate that is injection-molded from synthetic resin and has fastening holes formed along four corner surfaces, a steel floor frame installed on the outer lower surface of the base plate, and the steel floor. A connection bracket made of metal is vertically welded to the four corners of the frame and assembled through the fastening holes of the base plate. It is supported on the connection bracket and is made of metal to form the wall of the prefabricated pallet. It is characterized by being composed of left and right frames and front and rear frames,

The connection bracket includes a first plate having a first inward protruding plate protruding from an inner surface, a second plate extending in a vertically bent state on one side of the first plate and having a second inward protruding plate protruding from the inner surface, and the second plate having a second inward protruding plate protruding from the inner surface. A third plate is formed to extend in a vertically bent state at the top of one side of the second plate, a first inward bent portion is formed to be bent in a “┏” shape on the lower surface of the first plate, and is formed on the lower surface of the first inward bent portion. It consists of a step, a second inward bend formed on the lower surface of the second plate in a "┏" shape, and a step formed on the lower surface of the second inward bend, and the steel floor frame is formed so that a space is formed in the center. It consists of a flat part forming an outer edge, and an edge part bent on the outside of the flat part with a groove in between, and the flat part has first and second inward protruding plates protruding from the inner surfaces of the first and second plates of the connection bracket. are welded and joined in a raised state, and first and second inward bending portions provided on the lower surfaces of the first and second plates of the connection bracket are inserted into the groove portion, and are provided on the upper surface of the edge portion below the first and second inward bending portions. It is desirable to weld it together with the steps in the raised state.

A long hole is formed in the second plate, and a hinge pin axially coupled to a left or right frame fitted in the space is installed through the long hole, and the first plate and the third plate are connected to each other and communicate with each other. First to third holes are formed through the top and bottom at regular intervals, and through any one of the first to third holes, a hinge is axially coupled to the front frame or rear frame that is in close contact with the third plate. It is desirable to install the pin through.

It is preferable that a support piece supporting the front frame or the rear frame is bent between the third plate and the second plate, and a support piece supporting the left frame or right frame is formed on the inner surface of the first plate. do.

It is preferable that a reinforcing frame that reinforces the bending of the base plate is formed integrally with the outer surface of the base plate.

In the present invention, the base plate is molded from a synthetic resin material, and the left and right frames and the front and rear frames constituting the wall are molded from a metal material, which has the effect of reducing material costs and realizing excellent strength and stable item loading ability. have

In addition, the left and right frames and the front and rear frames can be folded more easily, reducing the volume and allowing prefabricated pallets to be stacked in multiple stages, which has the effect of allowing a large amount of pallets to be loaded without space restrictions.

Additionally, the right frame and front frame can be folded in half, allowing items contained in the pallet to be easily removed. And even if the connection brackets that secure the left and right frames and the front and rear frames to the base plate are manufactured in one shape, they can be used by grafting them on all four corners of each frame.

1 is a three-dimensional view showing the overall configuration of a prefabricated pallet according to a preferred embodiment of the present invention.
Figure 2 is a diagram showing a state in which the left and right frames and the front and rear frames of the prefabricated pallet shown in Figure 1 are sequentially folded and overlapped.
Figure 3 is a three-dimensional view showing the structure of the base plate, connection bracket, and steel floor frame.
Figure 4 is a view showing a state in which the connection bracket is separated from the steel floor frame.
FIG. 5 is a three-dimensional view showing an excerpt of the structure of the connection bracket shown in FIG. 4.
FIG. 6 is a cross-sectional view of the steel floor frame shown in FIG. 4.
Figure 7 is a view showing the coupled state of the left frame and connection bracket along the direction "A" in Figure 1.
Figure 8 is a view showing the coupled state of the right frame and connection bracket along the direction "B" in Figure 1.
Figure 9 is a view showing the coupled state of the front frame and the connection bracket along the "C" direction of Figure 1.
Figure 10 is a view showing the coupled state of the rear frame and the connection bracket along the direction "D" in Figure 1.
Figure 11 is a diagram illustrating the connection state of the left frame and right frame of Figure 1 and the connection bracket.
FIG. 12 is a diagram showing a state in which the left frame and the right frame in FIG. 11 are sequentially folded.
Figure 13 is a view showing an excerpt of the connection state of the front frame and rear frame of Figure 1 and the connection bracket.
Figure 14 is a view showing the front frame and rear frame of Figure 13 in a sequentially folded state.
Figure 15 is a view showing a prefabricated pallet having a structure in which the right frame and the front frame are folded in half according to another embodiment of the present invention.
FIG. 16 is a view showing an excerpt of the hinge portion installed on the right frame in FIG. 15.
FIG. 17 is a view showing an excerpt of the hinge portion installed on the front frame in FIG. 15.

Hereinafter, embodiments of the present invention will be described with reference to the attached drawings. In the detailed description to be described later, representative embodiments of the present invention will be presented to achieve the above-described technical problem. And other embodiments that can be presented with the present invention are replaced with descriptions in the configuration of the present invention.

The attached Figure 1 is a three-dimensional diagram showing the overall configuration of the prefabricated pallet according to a preferred embodiment of the present invention, and Figure 2 shows the left and right frames and the front and rear frames of the prefabricated pallet shown in Figure 1 sequentially. This is a drawing showing the folded and overlapped state. As shown in Figures 1 and 2, the prefabricated pallet of the present invention includes a base plate 10, left and right frames 20, which are installed along the outer edge of the base plate 10 and constitute the four walls of the pallet. 30) and front and rear frames (40, 50).

The base plate 10 is a flat plate type and constitutes the bottom surface of the prefabricated pallet and supports the items contained on the pallet.

The base plate 10 is made of synthetic resin and is injection molded in a mold.

The base plate 10 injected from the synthetic resin material can reduce the manufacturing cost by reducing material costs compared to a conventional base plate molded from a metal material, and has durability comparable to that of a metal material to stably support an article. However, welding work to fix the metal left and right frames 20 and 30 and the front and rear frames 40 and 50 to the synthetic resin base plate 10 is impossible. Therefore, in order to fix the left and right frames (20, 30) and the front and rear frames (40, 50) made of metal to the base plate (10) made of synthetic resin, the present invention uses a steel floor frame (100) and a connecting bracket (60). ) so that the left and right frames (20, 30) and front and rear frames (40, 50) can be firmly fixed to the base plate (10), details of the connection bracket (60) and steel floor frame (100) The explanation will be explained in detail below.

Fastening holes 12 for the connection bracket 60 to pass through are formed on the four corner surfaces of the base plate 10, and at least one insertion groove 14 is formed on the outer surface of the base plate 10. Let a depression form. A fork of a forklift is inserted into the insertion groove 14 of the base plate 10, and the prefabricated pallet can be lifted and moved to a desired location.

Meanwhile, the base used in a conventional pallet has a structure in which metal frames are placed at regular intervals and a plate such as plywood is placed on top to support the goods. If the base is made with such a metal frame, the entirety of the base is damaged. , an insertion groove for inserting the fork of a forklift cannot be formed at the rear, and insertion grooves can only be formed on both sides of the base, so the forklift can only enter two places on both sides of the prefabricated pallet (2-WAY). There was a problem of being very limited in space because there was no space.

On the other hand, when the base plate 10 is injection molded with a synthetic resin material as in the present invention, the base plate 10 can be molded into a flat plate type (i.e., a closed shape with no space inside), and thus the base plate 10 The insertion grooves 14 can be recessed on both outer surfaces of the (10), which results in the forklift being used on both sides or the front of the prefabricated pallet. Since the prefabricated pallet can be lifted no matter which direction you enter from the rear (4-WAY), the prefabricated pallet can be moved to the desired location without space restrictions.

On the outer surface of the base plate 10, a reinforcing frame 16 is formed to protrude to reinforce the bending of the base plate 10. The reinforcing frame 16 reinforces the bending of the base plate 10 during the process of lifting the pallet with a forklift.

The left and right frames 20 and 30 are frames that form the left and right walls of the prefabricated pallet.

The left and right frames 20 and 30 are arranged in an erect state on both sides of the base plate 10, and are manufactured in an overall rectangular frame shape using metal frames. That is, the left frame 20 has left vertical frames 22 arranged on both sides and left upper and lower frames 24 and 26 arranged above and below. In addition, the right frame 30 has a right vertical frame 32 arranged on both sides and upper and lower right frames 34 and 36 arranged above and below.

The front and rear frames 40 and 50 are frames that form the front and rear walls of the prefabricated pallet.

The front and rear frames 40 and 50 are arranged in an erect state on the front and rear upper surfaces of the base plate 10, respectively, and are manufactured in an overall rectangular frame shape using frames made of metal. That is, the front frame 40 has front vertical frames 42 arranged on both sides and front upper and lower frames 44 and 46 arranged above and below. In addition, the rear frame 50 has rear vertical frames 52 arranged on both sides and rear upper and lower frames 54 and 56 arranged above and below.

Meanwhile, on the lower surface of the base plate 10, the left and right frames 20, 30 and the front and rear frames 40 and 50, which are built on the outside of the base plate 10 and constitute the wall, are attached to the base plate 10. A connecting bracket 60 and a steel bottom frame 100 are installed for fixing to the.

That is, while the base plate 10 is injection molded from a synthetic resin material, the left and right frames 20, 30 and the front and rear frames 40, 50 are made from a metal frame, so that the left and right sides can be connected using a joining method such as welding. It is impossible to directly fix the frames 20 and 30 and the front and rear frames 40 and 50 to the base frame 10. Therefore, the present invention allows the left and right frames (20, 30) and the front and rear frames (40, 50) to be fixed to the base plate (10) using the connection bracket (60) and the steel bottom frame (100).

The attached Figure 3 is a three-dimensional drawing showing the structure of the base plate, connection bracket, and steel floor frame, Figure 4 is a drawing showing the connection bracket separated from the steel floor frame, and Figure 5 is shown in Figure 4. It is a three-dimensional drawing showing the structure of the connecting bracket being extracted, and FIG. 6 is a drawing showing a cross section of the steel floor frame shown in FIG. 4.

As shown in FIGS. 3 to 6, the steel floor frame 100 is installed along the outer edge of the lower surface of the base plate 10, and is manufactured in the overall shape of a square frame.

The connection bracket 60 is installed vertically at the four corners of the steel floor frame 100, and penetrates the fastening hole 12 of the base plate 10 to connect the left and right frames 20, 30 and the front, It is connected to the rear frames (40, 50) with hinge pins (90, 92, 94, 96), respectively, and the left and right frames (20, 30) and front and rear frames (40, 50) can be folded on the base plate (10). It is a means of support.

The connection brackets 60 have the same structure and are installed at the four corners of the steel floor frame 100. The structure of one connection bracket 60 will be extracted and described.

As shown in FIG. 5, the connection bracket 60 is provided with a first plate 62 on one side, and a second plate 64 extends in a vertically bent state on one side of the first plate 62. A third plate 66 is formed to extend from one side of the second plate 64 in a vertically bent state. Additionally, a space 63 for inserting the front frame 40 or the rear frame 50 is provided between the first plate and the third plate.

First to third holes 68a, 68b, and 68c are formed on the upper surface of the first plate 62 at regular intervals in the upper and lower directions. And below the first to third holes 68a, 68b, and 68c, a first inward protruding plate 72 is formed to protrude from the inner surface of the first plate 62.

In addition, a first inward bending portion 80 having a “┏” shape is formed on the lower surface of the first plate 62 and is bent along the inner surface of the first plate 62, and the first inward bending portion 80 A step 84 is provided on the lower surface through the bent shape of the first inward bending portion 80.

A long hole 67 having a predetermined length is formed through the second plate 64, and a second inward protruding plate 74 protrudes to the inner surface of the second plate 64 below the long hole 67. It is formed to extend significantly.

In addition, on the lower surface of the second plate 64, a second inward bending portion 82 having a “┏” shape is formed by bending along the inner surface of the second plate 64, and the second inward bending portion 82 A step 86 is provided on the lower surface through the bent shape of the second internal bending portion 82.

The third plate 66 has first to third holes 70a, 70b, and 70c respectively connected to the first to third holes 68a, 68b, and 68c formed in the first plate 62. The hinge is formed through one of the first to third holes 68a, 68b, 68c, 70a, 70b, and 70c formed in the first plate 62 and the second plate 62. Pins 90 and 92 pass through and rotatably connect the left and right frames 20 and 30 to the connection bracket 60.

A support piece 88 is bent and formed below the third plate 66. The support piece 88 is formed by bending the second plate 64 inward. The lower sides of the left frame 20 or the right frame 30 can be mounted on the support piece 88 in a raised state, and the left frame 20 or the right frame 30 mounted on the support piece 88 ), the hinge pins 90 and 92 can be stably fastened.

The steel floor frame 100 is a means of supporting the connecting bracket 60 made of metal so that the connecting bracket 60 can be stably coupled to the base plate 10 made of synthetic resin.

The steel floor frame 100 is molded into a rectangular frame shape to match the outer shape of the base plate 10 and installed on the lower outer surface of the base plate 10.

The connection brackets 60 are welded to the upper square corners of the steel floor frame 100 in an erect state.

The steel floor frame 100 has a flat portion 110 as shown in FIG. 6, and is manufactured with an edge portion 114 provided on the outside of the flat portion 110 with a groove portion 112 in between.

First and second inward protruding plates (72, 74) protruding from the inner surfaces of the first and second plates (62, 64) of the connecting bracket (60) are welded to the flat portion (110) in a raised state, The first and second inward bending parts 80 and 82 provided on the lower surfaces of the first and second plates 62 and 64 of the connecting bracket 60 are inserted into the groove part 112, and the edge part 114 On the upper surface, steps 84 and 86 provided below the first and second inward bent portions 80 and 82 are welded together in an elevated state.

That is, the combination of the connection bracket 60 and the steel floor frame 100 is achieved by the first and second inward protruding plates 72 and 74 of the connection bracket 60 contacting the flat portion 110 of the steel floor frame 100. By welding each and also welding the steps 84 and 86 of the connection bracket 60 in contact with the edge 114 of the steel floor frame 100, a strong connection can be maintained through four welded joints. . In addition, when the first and second inward bent portions 80 and 82 are inserted into the groove portion 112, the first and second inward bent portions 80 and 82 are caught on the inner surface of the edge portion 114 of the groove portion 112. This allows welding work to be performed while the connection bracket 60, which is placed on the steel floor frame 100, is stably supported without shaking or falling due to external force during the welding process.

The connection bracket 60 passing through the fastening holes 12 formed at the four corners of the base plate 10 while being fixed to the corners of the steel floor frame 100 includes left and right frames 20, 30, and The front and rear frames 40 and 50 are each rotatably assembled and form the four walls of the pallet, and this will be described with reference to FIGS. 7 to 10.

7 and 8, the left vertical frame 22 of the left frame 20 or the right vertical frame 32 of the right frame 30 is placed on the support piece 88 of the connection bracket 60, Next, any of the first to third holes (68a, 68b, 68c) formed in the first plate (62) and the first to third holes (70a, 70b, 70c) of the third plate (66) communicate with each other. With the hinge pins (90, 92) passing through one hole, the hinge pins (90, 92) are axially coupled to the left vertical frame (22) or the right vertical frame (32), respectively.

And, as shown in FIGS. 9 and 10, the space 63 between the first plate 62 and the third plate 66 of the connection bracket 60 is provided with the front vertical frame 42 or the rear of the front frame 40. The rear vertical frame 52 of the frame 50 is fitted. And the hinge pins 94 and 96 pass through the long hole 67 formed in the second plate 64 and are axially coupled to the front vertical frame 42 or the rear vertical frame 52.

Among the left and right frames 20 and 30 of the prefabricated pallet, the hinge pin 90 connecting the left frame 20 and the connection bracket 60 is the first hole ( 68a) And while sequentially penetrating the first hole 70a of the third plate 66, it is axially coupled to the left vertical frame 22 of the left frame 20, and is connected to the right frame 30 and the connection bracket ( The hinge pin 92 connecting the 60) is connected to the right frame while penetrating the second hole 68b of the first plate 62 and the second hole 70b of the third plate 66, as shown in FIG. It is desirable to configure the hinge pins 90 and 92, respectively coupled to the left frame 20 and the right frame 30, to have different heights so that they are axially coupled to the right vertical frame 32 of (30). This means that when the left frame 20 and the right frame 30 overlap each other and are folded when the pallet is folded, the left frame 20 and the right frame 30 are This is to compensate for interference due to the thickness of the branches so that the right frame 30 can be easily folded and stacked on the left frame 20 (see FIGS. 11 and 12).

And, as shown in Figures 9 and 10, the front and rear frames (40, 50) located in front and rear of the connection bracket (60) have hinge pins (94, 96) installed in the long holes (67) of the second plate (64). As they are each inserted, the height of the hinge pins 94 and 96 is freely adjustable through the length of the long hole 67, and when the left and right frames 20 and 30 are overlapped and folded, the left and right frames (50) The front frame 40 and the rear frame 50 can be sequentially folded over each other (see FIGS. 13 and 14).

Meanwhile, hinge members 300 of the same structure are installed at each abutting portion of the left frame 20, right frame 30, front frame 40, and rear frame 50. The hinge member 300 prevents the left frame 20, the right frame 30, the front frame 40, and the rear frame 50 from falling over while they are facing each other during the transportation process, and maintains the connected and fixed state. .

Hereinafter, the operation of the prefabricated pallet according to the present invention will be described with reference to FIGS. 1 to 14.

In the prefabricated pallet assembly of the present invention, the left and right frames (20, 30) and the front and rear frames (40, 50) made of metal are folded and stably fixed to the base plate (10), which is injection molded of synthetic resin. The goal is to reduce material costs while achieving excellent strength and stable loading capacity.

To this end, first, a steel floor frame 100 in the form of a square frame is manufactured, four connection brackets 60 molded in the same shape are placed on the four corner surfaces of the steel floor frame 100, and then connected through welding. The bracket 60 is fixed to the four corners of the steel floor frame 100.

When describing the assembly of one connection bracket 60 and the steel floor frame 100, the flat part 110 of the steel floor frame 100 has inner surfaces of the first and second plates 62 and 64 of the connection bracket 60. The protruding first and second inward protruding plates (72, 74) are welded together in a raised state, and the groove portion (112) is provided on the lower surface of the first and second plates (62, 64) of the connecting bracket (60). The first and second inward bent parts 80 and 82 are inserted, and the upper surface of the edge portion 114 has steps 84 and 86 provided below the first and second inward bent parts 80 and 82. Ensure that it is welded and joined in the raised state. At this time, during the welding process, the first and second inward bending parts 80 and 82 of the connecting bracket 60 are caught in the groove 112 of the steel floor frame 100, so that the steel floor frame ( Welding work can be performed while the connection bracket 60 mounted on 100) is stably supported without shaking or falling.

Next, the steel floor frame 100 is placed on the lower surface of the base plate 10 made of synthetic resin, and then the connection bracket 60 fixed to the steel floor frame 100 is connected to the base plate 10. ) is passed through the fastening hole (12) formed at the four corners of the.

Next, using the connection bracket (60), install the metal left and right frames (20, 30) and front and rear frames (40, 50) along the outer edge of the base plate (10) to complete the pallet wall. .

First, as shown in FIG. 7, the left frame 20 is placed on the support piece 88 of the connection bracket 60, and then the first plate 62 and the third plate 66 are respectively formed. With the hinge pin 90 passing through the holes 68a and 70a, it is axially coupled to the left vertical frame 22 constituting the left frame 20.

And, as shown in FIG. 8, the right frame 30 is placed on the support piece 88 of the connection bracket 60 located on the opposite side of the left frame, and then formed on the first plate 62 and the third plate 66. The hinge pin 92 is passed through the second holes 68b and 70b and is axially coupled to the right vertical frame 32 constituting the right frame 30.

Next, as shown in FIG. 9, the front vertical frame 42 of the front frame 40 is inserted into the space 63 between the first plate 62 and the third plate 66 of the connection bracket 60, and then the front After placing the frame 40 on the upper surface of the first inward protruding plate 72 of the first plate 62, the hinge pin 94 is passed through the long hole 67 formed in the second plate 64. It is axially coupled to the front vertical frame (22).

Next, as shown in FIG. 10, the rear vertical frame of the rear frame 50 is connected to the space 63 between the first plate 62 and the third plate 66 of the connection bracket 60 located on the opposite side of the front frame ( 52), the rear frame 50 is placed on the upper surface of the first inward protruding plate 72 of the first plate 62, and then the hinge pin is inserted into the long hole 67 formed in the second plate 64. It is axially coupled to the rear vertical frame (52) while passing through (96).

In the prefabricated pallet assembled in the above manner, the base plate (10) on which the goods are loaded is injection-molded from a synthetic resin material with relatively low material cost, and the left and right frames (20, 30) and front and rear frames (40) that make up the wall surface , 50), it is possible to manufacture prefabricated pallets that have excellent strength and stable product loading capacity while reducing material costs by minimizing the use of expensive metal materials by molding only metal materials.

When collecting the prefabricated pallet manufactured as above for reuse, fold the left frame 20 constituting the wall as shown in FIGS. 11 to 14, then fold the right frame 30 on the other side and place it on the left frame 20. They are stacked, and then the front frame 40 and the rear frame 50 are sequentially folded and stacked to collect and reuse the pallet with its volume minimized.

Meanwhile, the attached Figure 15 is a diagram showing the configuration of a prefabricated pallet according to another embodiment of the present invention.

As shown in Figure 15, the prefabricated pallet according to another embodiment of the present invention is characterized in that the right frame 20 and the front frame 40, among the frames forming the wall of the pallet, are manufactured from a square frame shape to a form that can be folded in half. This is to prevent interference between the goods and the frame when loading or unloading goods on a prefabricated pallet, by folding the left frame 20 and the front frame 40 in half when unloading or loading goods.

As shown in FIG. 15, the right frame 130 includes upper and lower horizontal frames 132 and 134, and first and second central horizontal frames 136 and 138 disposed in the middle of the upper and lower horizontal frames 132 and 134. , an upper vertical frame 140 disposed on both sides between the upper horizontal frame 132 and the first central horizontal frame 136, the second central horizontal frame 138, and the lower horizontal frame 134. It consists of a lower vertical frame 142 disposed on both sides of the frame.

The first and second central horizontal frames 136 and 138 are connected by a hinge portion 146, and perform folding and unfolding operations starting from the hinge portion 146, and the upper horizontal frame 132 of the right frame 130 And the upper vertical frame 140, lower horizontal frame 134, and lower vertical frame 142 can be folded starting from the hinge portion 146 of the first and second central horizontal frames 136 and 138.

As shown in the attached FIG. 16, the hinge portion 146 includes a first hinge 148 fixed to the first central horizontal frame 136, and a second hinge 150 fixed to the second central horizontal frame 138. ), and a hinge pin 152 that is axially coupled to the first and second hinges 148 and 150.

A partition bracket 154 is installed in the first central horizontal frame 136. The partition bracket 154 is inserted into the first central horizontal frame 136, 138, and the bent plate 156 bent at one end is provided at the tip of the hinge pin 152 of the hinge portion 146. It contacts the head portion 152a and locks the hinge pin 152 so that it does not come out of the first and second hinges 148 and 150 during use.

That is, the hinge pin 152 is inserted through the bent plate 156 of the partition bracket 154 without being unintentionally removed from the first and second hinges 148 and 150, even if it is not fixed by separate welding. It can be maintained.

In addition, the front frame 160 includes upper and lower horizontal frames 162 and 164, first and second central horizontal frames 166 and 168 disposed in the middle of the upper and lower horizontal frames 162 and 164, and the upper horizontal frames 166 and 168. An upper vertical frame 170 disposed on both sides between the frame 162 and the first central horizontal frame 166, respectively on both sides between the second central horizontal frame 168 and the lower horizontal frame 164 It consists of a lower vertical frame 172 that is placed.

The first and second central horizontal frames 166 and 168 are connected by a hinge portion 176, and perform folding and unfolding operations starting from the hinge portion 86, and the upper horizontal frame 162 of the front frame 160 And the upper vertical frame 170, lower horizontal frame 164, and lower vertical frame 172 can be folded starting from the first and second central horizontal frames 166 and 168.

As shown in the attached FIG. 17, the hinge portion 176 includes a first hinge 178 fixed to the first central horizontal frame 166, and a second hinge 180 fixed to the second central horizontal frame 168. ), and a hinge pin 182 that is axially coupled to the first and second hinges 178 and 180.

A partition bracket 184 is installed on the first central horizontal frames 166 and 168. The partition bracket 184 is inserted into the first central horizontal frame 166, 168, and the bent plate 186 bent at one end is provided at the tip of the hinge pin 182 of the hinge portion 176. It contacts the head portion 182a and locks the hinge pin 182 so that it does not come out of the first and second hinges 178 and 180 during use.

10: Base plate 12: Fastening hole
20: Left frame 22: Left vertical frame
30: Right frame 32: Right vertical frame
40: Front frame 42: Front vertical frame
50: Rear frame 52: Rear vertical frame
60: Connection bracket 62: First plate
63: space 64: second plate
66: Third plate 67: Long hole
68a, 68b, 68c: first to third holes
70a, 70b, 70c: first to third holes
72: first inward protruding plate 74: second inward protruding plate
80: first inward bending portion 82: second inward bending portion
84, 86: step 88: support piece
90, 92, 94, 96: Hinge pin 100: Steel floor frame
110: flat part 112: groove part
114: border part

Claims (5)

In prefabricated pallets,
A base plate (10) that is injection molded from a synthetic resin material and has fastening holes (12) formed along the four edge surfaces.
A steel floor frame 100 installed on the outer surface of the base plate 10;
Connecting brackets 60 made of metal are welded to the square corners of the steel floor frame 100 in a vertical position and are assembled while penetrating each fastening hole 12 of the base plate 10;
A prefabricated pallet, characterized in that it is supported on the connection bracket (60) and is made of metal and consists of left and right frames (20, 30) and front and rear frames (40, 50) that constitute the walls of the prefabricated pallet. .
According to clause 1,
The connection bracket 60 is;
A first plate (62) with a first inward protruding plate (72) protruding from its inner surface;
a second plate (64) extending in a vertically bent state on one side of the first plate (62) and having a second inward protruding plate (74) protruding from the inner surface;
a third plate (66) extending in a vertically bent state from the top of one side of the second plate (64);
A first inward bending portion 80 bent in a “┏” shape on the lower surface of the first plate 62;
A step 84 formed on the lower surface of the first inward bent portion 80;
a second inwardly bent portion 82 formed on the lower surface of the second plate 64 in a “┏” shape;
It consists of a step (86) formed on the lower surface of the second inward bending portion (82);
The steel floor frame 100 is;
A flat portion 110 constituting the outer border;
It consists of an edge portion 114 bent on the outside of the flat portion 110 with a groove portion 112 in between;
The flat portion 110 is welded with the first and second inward protruding plates 72 and 74 protruding from the inner surfaces of the first and second plates 62 and 64 of the connecting bracket 60 in a raised state. , the first and second inward bent parts (80, 82) provided on the lower surfaces of the first and second plates (62, 64) of the connection bracket are inserted into the groove portion (112), and the upper surface of the edge portion (114) A prefabricated pallet, characterized in that the steps (84, 86) provided below the first and second inward bent portions (80, 82) are welded together in a raised state.
According to clause 2,
First to third holes 68a, 68b, and 68c are formed in the first plate 62, and first to third holes 68a, 68b, and 68c are formed in the first plate 62. First to third holes (70a, 70b, 70c) are formed to connect and communicate with 68b, 68c, and the first to third holes (68a, 68b, 68c, Hinge pins 90 and 92, which are axially coupled to the left frame 20 or the right frame 30, are installed through any one of the holes 70a, 70b and 70c);
A long hole 67 is formed in the second plate 64, and a hinge pin 94 is axially coupled to the front frame 40 or the rear frame 50 inserted into the space 63 through the long hole 67. , 96) is a prefabricated pallet characterized in that it is installed through.
According to clause 2,
A prefabricated pallet, characterized in that a support piece (88) is bent and formed below the third plate (66) to support the left frame (20) or right frame (30).
According to clause 1,
A prefabricated pallet, characterized in that a reinforcing frame (16) is integrally formed on the outer surface of the base plate (10) to reinforce the bending of the base plate (10).