KR20110040196A - Pallet and method thereof - Google Patents

Abstract

PURPOSE: A pallet and a manufacturing method thereof are provided to remove a separate process for forming holes on the pallet by metal molding an upper plate and a supporting plate, and by molding a cut-out hole and a fork insertion hole when metal molding. CONSTITUTION: A pallet comprises an assembly body(101), an upper plate(200), and a combining unit. The assembly body is formed by cross-coupling supporting plates(100), formed with danpla sheets obtained by synthetic resin materials. The upper plate is formed with the danpla sheets, and includes covering units(210,220,230). The covering units are foldably produced to surround a plate assembly.

Description

Pallet and its manufacturing method

The present invention relates to a pallet, and more particularly, to a new type of pallet and a method of manufacturing the same, which can support a sufficient weight while allowing a simple manufacturing and stable coupling between components. .

In general, a pallet is a series of components that are transported by a forklift or the like in which various cargoes are placed.

Since the pallet is usually manufactured by combining a plurality of wooden bars or wooden panels, the overall cost is inevitably high, and the weight is also heavy.

In addition, the above-described conventional wooden pallets are inconvenient to separate all the nails from the wooden pallets in order to be recycled when they are discarded due to the damage because the components are bonded to each other by nails or the like.

Of course, the pallet is also made of a synthetic resin, such as plastic as a whole, but also the overall weight is not only heavy, but also consumes a lot of raw materials for the manufacturing, there is a problem that is extremely vulnerable to torsional strength.

Recently, in Korean Patent Publication No. 10-0396194 and Korean Patent Publication No. 10-0863574, the above-mentioned pallets are manufactured from synthetic resin corrugated sheet (short plastic sheet) instead of wood to minimize weight and reduce price. To make it possible.

However, the support plate of the above-described prior art pallet is formed in the cut-out hole for coupling with the other support plate in the folded state in the center, in particular, the fork insertion hole formed in the support plate is completed after assembly between each support plate In consideration of the formation, there was a problem in that it was difficult to secure the support plate or the support plate assembly during the work for forming the cutout and the fork insertion hole, so that it was difficult to obtain a precise shape.

In addition, the pallet according to the prior art described above is not easy to fix each other because of the extremely limited contact between the upper plate and the lower plate and the support plate assembly, and may be undesirably separated even after the fixing between them. Has the problem that it can.

The present invention has been made to solve the various problems according to the prior art described above, the object of the present invention is to simplify the manufacture and to ensure that the coupling between each component can be made stable, can support a sufficient weight It is to provide a new type of pallet and a method of manufacturing the same.

According to the pallet of the present invention for achieving the above object a plate assembly configured by cross-linking a plurality of support plates made of a short plastic sheet of synthetic resin material; It is made of a synthetic resin short plastic sheet, and the upper surface of the plate assembly is formed to extend from the portion surrounding the upper surface while being bent to wrap sequentially up to a portion of the bottom including the circumferential surface of the plate assembly An upper plate having a plurality of covering portions formed; And, it is characterized in that it comprises a coupling portion: coupled to each other while being formed corresponding to each covering portion of the top plate.

Here, the plurality of support plates constituting the plate assembly is formed to be collapsible based on the center portion, and the plurality of fork insertion holes for penetrating the plurality of incision holes and forks for coupling to each support plate on the surface are formed in the center. It is characterized in that formed on each of the sites symmetrical with respect to the site.

In addition, the support plate is characterized in that it further comprises a fixing pin which is fixed through the folded portion through the pipe for maintenance in the folded state.

The upper plate may further include an upper surface covering portion covering the upper surface of the entire plate assembly, a circumferential covering portion covering the circumferential surface of the plate assembly while being bent and extending from four sides of the upper surface covering portion, and the respective circumferential surfaces. In addition to being formed extending from the covering portion is bent and characterized in that it consists of a bottom covering portion surrounding a portion of the circumferential side of the bottom of the plate assembly.

In addition, the upper plate is formed of a synthetic resin transparent to enable the transmission of the laser, characterized in that each support plate is formed of an opaque synthetic resin so that the transmission of the laser is impossible.

In addition, the coupling portion is formed to penetrate through the hooks protruding outwardly from both sides and the outer end of any two sides of each of the covering portion of the upper plate, and both sides of the other two sides of the covering portion of the upper plate respectively. The hook is characterized in that it is configured as a locking hole to be caught.

And, according to the pallet manufacturing method of the present invention for achieving the above object a molding step of forming a plurality of support plates and the top plate through a mold operation, respectively; An assembly manufacturing step of forming a plate assembly by folding the supporting plates manufactured through the molding step in half and then joining each other by lattice crossing between the supporting plates on which the folding operation is completed; Joining step of bending to circumscribe the peripheral portion of the upper plate formed through the assembly manufacturing step to surround a portion of the upper surface and the peripheral surface and the bottom of the support plate assembly: characterized in that the progress is included.

Here, each of the support plates formed through the mold operation in the molding step is characterized in that the plurality of incision holes for cross-coupling between each support plate and the fork insertion hole for the penetration of the forks are simultaneously molded through the above-described mold operation. .

In addition, a plurality of covering parts surrounding the circumferential surface and the bottom surface of the plate assembly are integrally formed on the circumferential side portion of the upper plate formed through the mold operation in the forming step, and the overlapping couplings are formed on each of the covering parts. A plurality of hooks and engaging holes corresponding to each other for being molded at the same time through the above-described mold operation.

In addition, in the process of folding the support plate in half during the assembly manufacturing step characterized in that the process further comprises a step of coupling through the fixing pin to the folded portion to prevent the folded portion unfolding.

In addition, after the completion of the bonding step is characterized in that the step of further comprising the step of fusion bonding the laser between the upper plate and the plate assembly.

As described above, the pallet according to the present invention and a method of manufacturing the same may be molded at the same time as each of the individual components (top plate and support plate) by a mold operation, and the incision hole and the fork insertion hole may be molded at a time. By doing so, there is an effect that the process for forming various holes separately can be omitted.

In addition, the pallet of the present invention and a method of manufacturing the same to cover the upper and circumferential surface and a part of the bottom surface of the plate assembly by using the top plate in a state where the separate bottom plate is omitted, in particular, the coupling portion formed in each covering It is possible to easily maintain a stable coupling state while being easily coupled to each other by.

Hereinafter, preferred embodiments of the pallet, the pallet manufacturing apparatus, and the manufacturing method of the present invention will be described with reference to FIGS. 1 to 5.

1 is a view illustrating a pallet according to an embodiment of the present invention. As can be seen from this, the pallet according to the embodiment of the present invention is largely divided into a plate assembly 101, a top plate 200, and a coupling part 300. It is configured to include. That is, the pallet according to the present invention does not have a separate lower plate, but also to perform the role of the lower plate with only the upper plate 200, and also to minimize the fusion operation through the coupling by the coupling portion 300 or , To be omitted. This will be explained in more detail for each configuration.

First, the plate assembly 101 is a series of components forming an inner wick of the pallet so as to secure the strength of the pallet, and the plurality of support plates 100 are assembled and assembled in a lattice shape to cross each other.

At this time, each of the support plate 100 is made of a synthetic resin short plastic sheet and is formed to be foldable based on the central portion, and on the surface a plurality of incisions for coupling between each support plate 100 110 and the fork insertion hole 120 through which the fork of the forklift is formed are respectively formed in the symmetrical portion with respect to the central portion.

In particular, the embodiment of the present invention proposes that the support plate 100 is manufactured through a mold operation. That is, the cutting hole 110 and the fork insertion hole by allowing the cutting hole 110 and the fork insertion hole 120 to be simultaneously formed in one operation as well as the appearance of the support plate 100 through a mold operation. The post-process for the separate formation of the (120) is to be omitted.

Next, the upper plate 200 is a series of configurations formed to surround a portion of the upper surface, the circumferential surface and the bottom surface of the plate assembly 101, made of a synthetic resin short plastic sheet.

The upper plate 200 includes a top cover 210, a circumferential cover 220, and a bottom cover 230, and the top cover 210 is a top surface of the entire plate assembly 101. It is formed to surround, the circumferential surface covering portion 220 is formed to surround the circumferential surface of the plate assembly 101 while extending from each of the four sides of the upper surface covering portion 210, the bottom covering portion 230 ) Is formed to surround a portion of the circumferential side of the bottom of the plate assembly 101 while extending from the respective circumferential surface covering portion 220.

At this time, each circumferential surface covering portion 220 constituting the upper plate 200 is bent from the boundary portion with the upper surface covering portion 210, the bottom cover portion 230 is each circumferential surface covering portion 220 It is bent from the boundary site with).

Next, the coupling portion 300 is a series of components that are formed to correspond to each other while being formed corresponding to each other on the circumferential surface covering portion 220 and the bottom covering portion 230 of the top plate 200.

That is, the coupling part 300 is to reduce the manufacturing cost by allowing the coupling between the top plate 200 and the plate assembly 101 can be made by a simple manual operation without using a separate device for fusion welding will be.

In the embodiment of the present invention, the first hook 310 protruding outward from each of the two circumferential surface covering portions 220 that are opposite to each other among the four circumferential surface covering portions 220 forming the upper plate 200. And a first catching hole 320 which is formed through the first hook 310 and is respectively formed in the other two circumferential covering portions of the four circumferential covering portions 220, and four bottom covering portions 230. The second hook 330 and the second hook 330 respectively protruding outwardly from the outer ends of the two bottom bottom covering portions facing each other, and the second hook 330 is formed while the other two bottom bottom covering portions of the four bottom covering portions 230, respectively; It is suggested that each of the second locking hole 340 is passed through.

In the following, the manufacturing process of the pallet according to the preferred embodiment of the present invention described above will be described in detail.

First, the plurality of support plates 100 and the upper plate 200 are molded through a mold operation.

At this time, during the mold operation, each of the support plates 100 is simultaneously formed with a plurality of cutting holes 110 for cross-coupling between each support plate 100 and fork insertion holes 120 for the penetration of the forks.

In addition, the outer plate for the plurality of covering portions 210, 220, 230 are molded at once in the upper plate 200 during the mold operation, and each of the peripheral surface covering portions 220 is formed with a fork insertion hole 221, and the coupling portion ( Hooks 310 and 330 forming the 300 and the locking holes 320 and 340 are also formed at the same time.

As described above, in the embodiment of the present invention, the support plate 100 and the upper plate 200 and the coupling part 300 may be formed in one process through a mold operation, and the incision hole 110 and the fork insertion in the process thereof. By allowing the balls 120 and 221 to be molded at the same time, a post process (eg, a cutting process or the like) for forming the cut holes 110 and the fork insertion holes 120 and 221 separately may be omitted.

In addition, when the molding of the support plate 100 and the upper plate 200 is completed through the above process, the support plate 100 is folded in half, and the lattice is formed between the support plates 100 in which the folding operation is completed. And cross each other to form a plate assembly 101.

At this time, the support plates 100 are coupled to each other by engaging between the portions in which the cut holes 110 are formed.

When the plate assembly 101 is completed by the above process, the plate assembly 101 is wrapped using the upper plate 200.

In this case, the upper surface covering part 210 of the upper plate 200 covers the upper surface of the plate assembly 101, and each circumferential surface covering part 220 is formed from four sides of the upper surface covering part 210. By bending, the circumferential surface of the plate assembly 101 is enclosed, and each bottom covering portion 230 is bent from the circumferential surface covering portion 220 to enclose a portion of the bottom surface of the plate assembly 101.

Thereafter, the hooks 310 and 330 and the catching holes 320 and 340 formed in the respective circumferential surface covering parts 220 and the bottom covering part 230 correspond to each other and are coupled to each other.

That is, the first hooks 310 formed at both sides of one of the two circumferential surface covering parts 220 are coupled to the first catching hole 320 formed at the other two circumferential surface covering parts 220, and any two bottom surface covering parts are provided. The second hooks 330 formed at 230 are coupled to the second catching hole 340 formed at the other two bottom cover parts 230 to complete the pallet. This is as shown in Figure 5 attached.

At this time, although each of the hooks 310 and 330 is formed larger than each of the engaging holes 320 and 340, considering the material of the upper plate 200 is a short plastic sheet, the bending is possible because the bending hole ( The through coupling to the 320 and 340 may be smoothly performed, while the coupling is not easily removed by the self restoring force.

As a result, the pallet according to the embodiment of the present invention described above is able to form a pallet even without providing a lower plate, and in particular, the upper plate 200 is formed to form a part of the circumferential surface and the bottom of the pallet, and thus the plate assembly 101. ) Is wrapped around the top plate and the plate assembly 101 does not require a separate fusion process for fixing.

Of course, when the pallet according to the embodiment of the present invention described above is considered that each support plate 100 is formed of a short plastic sheet, a gap is generated due to self restoring force in the process of folding in half, and thus crosses each support plate 100. Joining can be difficult.

Therefore, it is more preferable that a structure capable of maintaining the folded state of each of the support plates 100 is added.

Accordingly, in the embodiment of the present invention further suggests that the fixing pin 130 penetrating the folding portion of the support plate 100 is further provided, the fixing pin 130 is half of the support plate 100 In the folded state to suggest the fastening before cross-coupling between each support plate 100.

At this time, the fixing pin 130 is preferably formed in the structure of the arrow as shown, which can be prevented when the fastening is made, but is not limited thereto.

Of course, the method of maintaining the folded state of each of the support plates 100 may be variously applied, such as by applying an adhesive to the surfaces that abut each other, or by using an adhesive tape.

In addition, although the upper plate 200 constituting the pallet of the present invention is configured to surround the plate assembly 101 according to the short plastic sheet, the contact portion between the upper plate 200 and the plate assembly 101 (in particular, the upper plate). The upper cover portion and the upper contact portion of the plate assembly) may be partially raised.

Therefore, it is more preferable that the contact portion between the upper plate 200 and the plate assembly 101 can be in close contact with each other.

Accordingly, an embodiment of the present invention suggests that the contact portion between the upper plate 200 and the plate assembly 101 is fused with a laser, and this laser fusion process wraps the upper plate 200 in the plate assembly 101. It suggests that the control be carried out after the work has been performed.

In particular, for the laser fusion, the upper plate 200 is formed of a transparent synthetic resin to enable laser transmission, and the plate assembly 101 should be formed of an opaque synthetic resin so that laser transmission is impossible. This is to allow fusion using a laser to be made only at the contact portion between the upper plate 200 and the plate assembly 101.

Of course, the method for allowing the contact portion between the upper plate and the plate assembly 101 to be in close contact with each other may be using an adhesive tape or a method using an adhesive.

1 is an exploded perspective view showing the structure of a pallet according to a preferred embodiment of the present invention

Figure 2 is a plan view showing for explaining a support plate of the pallet according to an embodiment of the present invention

Figure 3 is a perspective view for explaining the folded state of the support plate of the pallet according to an embodiment of the present invention

Figure 4 is a perspective view for explaining the plate assembly of the pallet according to a preferred embodiment of the present invention

Figure 5 is a perspective view showing a part cut to explain the completion of the coupling of the pallet according to a preferred embodiment of the present invention

Explanation of symbols for main parts of the drawings

101. Plate assembly 100. Support plate

110. Incision 120. Fork Inserter

130. Push pin 200. Top plate

210. Top cover 220. Perimeter cover

230. Bottom cover 300. Coupling

310. First hook 320. First catching ball

330. Second hook 340. Second catching ball

Claims (11)

A plate assembly configured to cross-couple a plurality of support plates made of a synthetic resin short plastic sheet to each other; It is made of a synthetic resin short plastic sheet, and the upper surface of the plate assembly is formed to extend from the portion surrounding the upper surface while being bent to wrap sequentially up to a portion of the bottom including the circumferential surface of the plate assembly An upper plate having a plurality of covering portions formed; And, And a coupling part which is formed to correspond to each of the covering parts of the upper plate and couples to each other: a pallet. The method of claim 1, The plurality of support plates constituting the plate assembly It is formed to be foldable based on the central part, and on the surface, a plurality of incision holes for coupling to each support plate and a plurality of fork insertion holes for the penetration of the forks are formed on the symmetrical parts with respect to the center part. Palette characterized in that. The method of claim 2, Each support plate Palette characterized in that it further comprises a fixing pin which is fixed through the folded portion for maintenance in the folded state The method of claim 1, The top plate is An upper surface covering part covering an upper surface of the entire plate assembly; A circumferential covering part extending from four sides of the upper covering part and being bent to surround a circumferential surface of the plate assembly; And a bottom cover part which extends from each circumferential surface cover part and bends and surrounds a portion of the circumferential side of the bottom of the plate assembly. The method according to claim 1 or 4, The upper plate is formed of a transparent synthetic resin to enable the transmission of the laser, Each support plate is a pallet, characterized in that formed of opaque synthetic resin so that the transmission of the laser is impossible. The method of claim 1, The coupling part Hooks protruding outwardly from both sides and outer ends of any two sides of each covering portion of the upper plate facing each other, Pallets, characterized in that formed in the through hole formed in each of the two sides of the other two sides of the covering of the upper plate facing each other while the hook is passed through. A molding step of molding each of the plurality of support plates and the upper plate through a mold operation; An assembly manufacturing step of forming a plate assembly by folding the supporting plates manufactured through the molding step in half and then joining each other by lattice crossing between the supporting plates on which the folding operation is completed; Joining step of bending to surround the circumferential portion of the upper plate formed through the forming step to cover the top and circumference and the bottom portion of the support plate assembly formed through the assembly manufacturing step: pallet manufacturing method characterized in that the progress . The method of claim 7, wherein Each support plate formed through the mold operation in the molding step is a plurality of incision holes for cross-linking between each support plate and the fork insertion hole for the penetration of the fork is characterized in that for forming the pallet at the same time through the above mold operation Way. The method of claim 7, wherein In the forming step, a plurality of covering portions surrounding the circumferential surface and the bottom surface of the plate assembly are integrally formed on the circumferential side portion of the upper plate formed through the mold operation, and the overlapping couplings are formed on the respective covering portions. Pallet manufacturing method characterized in that the plurality of hooks and engaging holes corresponding to each other to be molded at the same time through the above-mentioned mold operation. The method of claim 7, wherein The process of manufacturing the pallet further comprising the step of penetrating through the fixing pin to the folded portion to prevent the folding portion is unfolded during the folding of the support plate in half during the assembly manufacturing process. The method of claim 7, wherein After the completion of the bonding step is a pallet manufacturing method characterized in that it further comprises the step of fusion welding the contact area between the top plate and the plate assembly.

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