TWI829498B - paper pallet mechanism - Google Patents

Abstract

A paper pallet mechanism includes two supporting side rods and a plurality of bridging rods spanning the supporting side rods. Each jumper bar includes a long plate portion extending horizontally along a second direction, and two opposite long outer sides respectively connected to the long plate portion and symmetrical along a first direction and leaning against the long plate portion. Square long tubular structure. Each long tubular structural part extends outward from the long plate part and is continuously bent into a rectangular tube shape. Through the structural design that each jumper bar is made of cardboard that is continuously bent and rolled, and the long tubular structural parts are supported under the long plate part, the bending structural strength of the jumper bar can be improved, making the The resulting paper pallet mechanism can have better load-carrying capacity while maintaining lightweight conditions.

Description

paper pallet mechanism

The present invention relates to a pallet mechanism, in particular to a paper pallet mechanism.

Currently, most common pallets are made of wood or plastic. Wooden pallets are heavy and difficult to move. Although plastic pallets are relatively durable, once a certain structural part is damaged, it is usually difficult to repair and can only be discarded as a whole set, which is relatively unenvironmental. In recent years, some industry players have begun to develop so-called paper pallets. The advantages of paper pallets are that they are light in weight, environmentally friendly and recyclable, and their manufacturing costs are relatively low.

However, since paper pallets are made of paper, their structural strength is relatively lower than that of wood and plastic. In order to improve the load-bearing structural strength of paper pallets, operators will insert metal strips, such as steel, into the rod-shaped structure of paper pallets. strips or aluminum strips. However, this structural design of arranging metal strips in the strip structure of the paper pallet will not only increase the weight, but also significantly increase the manufacturing cost.

It is therefore an object of the present invention to provide a paper pallet mechanism that improves at least one of the disadvantages of the prior art.

Therefore, the paper pallet mechanism of the present invention includes two paper supporting side bars and a plurality of paper bridging bars. The supporting side bars extend along a first direction and are spaced parallel along a second direction orthogonal to the first direction. The bridging rods are arranged in parallel along the first direction and extend across the top surfaces of the supporting side rods along the second direction.

Each bridging rod includes a long plate portion extending horizontally along the second direction, and two opposite long outer sides respectively connected to the long plate portion and leaning against the long plate portion along the first direction. The long tubular structure on the bottom surface. The long tubular structural parts are overlapped and fixed on the top surfaces of the supporting side bars.

Each long tubular structural part extends outward from the long plate part and is continuously bent into a rectangular tube shape, and has a long outer wall protruding vertically downward from the long plate part, and a horizontal protrusion from the bottom edge of the long outer wall. A long outer bottom wall extending toward another long tubular structural portion, a long vertical wall protruding upward from the long outer bottom wall and upright and abutting against the other long tubular structural portion, and a long vertical wall extending from the top edge of the long vertical wall toward The long outer wall protrudes in the direction and overlaps with the long top wall of the long plate portion, a long inner wall protrudes downward from the long top wall and overlaps with the long outer wall, and a long inner wall protrudes downward from the long top wall and overlaps with the long outer wall. The bottom edge of the side wall protrudes toward the long vertical wall direction and overlaps the long inner bottom wall on the long outer bottom wall, and a long slant protrudes upward from the long inner bottom wall and leans against the bottom surface of the long top wall. A supporting wall, and a long end wall protruding obliquely downward from the top edge of the long inclined supporting wall and abutting against the connection between the long inner wall and the long inner bottom wall.

The effect of the present invention is that: each crossover rod is made of cardboard that is continuously bent and rolled, and the structural design of the long tubular structural part is supported below the long plate part, so that no metal rod is required. In this case, the bending structural strength of the crossover rod is improved, so that the paper pallet mechanism can have better load-carrying capacity while maintaining a lightweight condition.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are designated with the same numbering.

Referring to Figures 1 to 4, a first embodiment of the paper pallet mechanism 200 of the present invention includes two paper supporting side bars 3 and an intermediate support bar 4 arranged in parallel, and a plurality of bridging fixed on these A paper bridging rod 5 supports the top surface of the side rod 3 and the middle support rod 4. In this first embodiment, the bridging rods 5 are installed and fixed on the top surfaces of the supporting side rods 3 and the middle support rod 4 through adhesive means.

The supporting side bars 3 extend horizontally front and back along a first direction 901, and are arranged in parallel at intervals along a second direction 902 horizontally orthogonal to the first direction 901. The middle support rod 4 extends horizontally forward and backward along the first direction 901, and is arranged parallel to the left and right intervals along the second direction 902 between the opposite sides of the supporting side rods 3. The bridging rods 5 are arranged in parallel at intervals along the first direction 901 , and horizontally extend left and right along the second direction 902 to bridge the top surfaces of the supporting side rods 3 and the middle support rod 4 .

In this first embodiment, the supporting side bars 3 and the middle support bars 4 are made of a plurality of upright long sheet-shaped cardboards extending horizontally along the first direction 901 and are sequentially stacked and fixed along the second direction 902. made. The cardboard is, for example, but not limited to corrugated paper. Since the supporting side bars 3 and the middle struts 4 have many structural types and are not the focus of the improvement of the present invention, they will not be described in detail.

Since the structures of the jumper bars 5 are the same, for convenience of explanation, only one of the jumper bars 5 will be used as an example for structural description below.

The bridging rod 5 is made of a cardboard that is continuously bent and rolled, and includes a long plate portion 51 extending horizontally along the second direction 902 and two integrally connected to the long plate portion 51 along the first direction 901 The long tubular structural part 52 and two plate-shaped first end cap parts 53 are integrally connected to the long plate part 51 at intervals along the second direction 902 . The long plate portion 51 has two long outer sides 511 extending along the second direction 902 and spaced parallel along the first direction 901 , and two long outer sides 511 extending along the first direction 901 and spaced parallel along the second direction 902 . The length of the outer end is 512. The cardboard is, for example, but not limited to corrugated paper.

The equal-length tubular structural parts 52 are respectively connected to the equal-length outer edges 511 , and are overlapping and fixed to the top surfaces of the supporting side bars 3 and the middle strut 4 along the first direction 901 .

Each elongated tubular structure portion 52 is designed in a rectangular tube shape and has two first open ends 520 opposite to each other along the second direction 902 . Each long tubular structure part 52 includes a long outer wall 521 that protrudes vertically downward from the corresponding long outer side 511, and a horizontal protrusion that is bent from the bottom edge of the long outer wall 521 toward the other long tubular structure part 52. The long outer bottom wall 522 is extended, a long vertical wall 523 is bent upward from the protruding end side of the long outer bottom wall 522, and a long vertical wall 523 is bent upward from the top edge of the long vertical wall 523 toward the long outer wall 521. A long top wall 524 protrudes horizontally and is stacked against the bottom surface of the long plate portion 51, and a long inner wall protrudes vertically downward from the protruding end side of the long top wall 524 and is stacked against the long outer wall 521. The side wall 525, a long inner bottom wall 526 that is bent from the bottom edge of the long inner wall 525 and protrudes horizontally toward the long vertical wall 523 and is stacked on the long outer bottom wall 522, and a protrusion from the long inner bottom wall 526. The end side protrudes obliquely upward and abuts against the long oblique support wall 527 on the bottom surface of the long top wall 524, and a bend protrudes obliquely downward from the top edge of the long oblique support wall 527 and abuts against the limit within the length. The long end wall 528 at the junction of the side wall 525 and the long inner bottom wall 526. The elongated vertical walls 523 of the elongated tubular structural portion 52 are adjacent to each other.

The first end cover portions 53 are respectively connected to the long outer end edges 512 of the long plate portion 51 . Each first end cover portion 53 protrudes vertically downward from the corresponding long outer end edge 512 and overlaps the first opening ends 520 covering the corresponding ends of the equal-length tubular structural portions 52 .

Through the structural design of the long tubular structural parts 52 supported under the long plate part 51 and the continuous bending structural design of the long tubular structural parts 52, it is possible to greatly improve the performance without installing metal rods. The bending structural strength of each bridging rod 5 enables the paper pallet mechanism 200 to have a higher load-carrying capacity and maintains the lightweight characteristics of the paper pallet mechanism 200 .

During implementation, in another embodiment of the present invention, the number of the intermediate struts 4 can be increased or decreased according to needs. The intermediate struts 4 may not be provided, or a plurality of intermediate struts 4 may be added.

Referring to FIGS. 5 to 8 , a second embodiment of the paper pallet mechanism 200 of the present invention differs from the first embodiment in that it also includes a plurality of spacers 6 . For convenience of explanation, only the differences between the embodiments will be described below.

The spacers 6 are installed and fixed on the top surfaces of the supporting side rods 3 and the middle support rod 4, and are respectively located between the opposite sides of the bridging rods 5. Each spacer seat 6 is in contact with the opposite side surfaces of the two corresponding bridging rods 5 . In the second embodiment, the spacers 6 are also installed and fixed on the top surfaces of the support side bars 3 and the middle support bar 4 through adhesive means.

Since the equal spacer seats 6 have the same structure, only one of the spacer seats 6 is taken as an example for structural description below.

The spacer seat 6 is also made of a piece of cardboard that is continuously bent. Its bending structure is the same as the aforementioned bridging rod 5 , but its extension length along the second direction 902 is shorter than that of the aforementioned bridging rod 5 . The length of the spacer 6 in the second direction 902 is the same as the width of the corresponding top surface of the supporting side rod 3 or the middle strut 4 in the second direction 902 .

The spacer seat 6 includes a short plate portion 61 extending horizontally along the second direction 902 and flush with the top surface of each adjacent crossover rod 5 , and two short plate portions 61 connected to the short plate portion 61 and extending along the first direction. 901 is adjacent to the rectangular tubular short tubular structural portion 62 provided on the bottom surface of the short plate portion 61, and two are connected to the short plate portion 61 and to the short tubular structural portions 62 at intervals along the second direction 902 The plate-shaped second end cover portion 63 is formed. The short plate portion 61 has two short sides 611 spaced apart and parallel along the first direction 901 , and two short end sides 612 spaced apart and parallel along the second direction 902 . The short tubular structural parts 62 are respectively connected to the short sides 611 . The second end cover portions 63 are respectively connected to the short end sides 612 .

The bending structures of the short tubular structural portions 62 are the same as those of the long tubular structural portions 52, and therefore will not be described in detail. Each short tubular structural part 62 has two second open ends 620 spaced apart from each other along the second direction 902, and has a rectangular tubular shape extending outward from the corresponding short side 611 and continuously bent. a short outer wall 621, a short outer bottom wall 622, a short vertical wall 623, a short top wall 624, a short inner wall 625, a short inner bottom wall 626, a short diagonal support wall 627, and a short end wall 628.

Each second end cover portion 63 protrudes vertically downward from the corresponding short end edge 612 and overlaps and covers the second open ends 620 of the corresponding ends of the short tubular structural portions 62 .

Through the structural design of the spacers 6 arranged side by side between the opposite sides of the jumper rods 5, the structural stability of the arrangement of the jumper rods 5 can be improved, and at the same time, the paper pallet mechanism 200 can be improved. structural strength.

During implementation, the cross-sectional structure of the spacers 6 is not necessarily the same as the cross-sectional structure of the jumper rods 5 , that is to say, it is not necessary for each spacer 6 to be provided with the short tubular structural parts 62 .

Referring to FIG. 9 , a third embodiment of the paper pallet mechanism 200 of the present invention differs from the first embodiment in that it also includes a top plate 7 and the arrangement of the bridging rods 5 .

In the third embodiment, the bridging rods 5 are arranged in pairs and form a group, and multiple groups are spaced across the supporting side rods 3 and the middle support rods (not shown). The top plate 7 It is overlapped and fixed on the top surfaces of all jumper rods 5.

During implementation, in the above-mentioned first embodiment, the bridging rods 5 may also adopt a structure in which two or more bridging rods 5 are arranged in a group, and multiple groups are spaced across the supporting side rods 3 and the middle support rods 4. design.

Furthermore, during implementation, waterproof paint can also be coated on the outer surfaces of the supporting side rods 3, the middle support rods 4, the crossover rods 5, the spacers 6 and/or the top plate 7, so as to The waterproof and moisture-proof properties of the finished paper pallet mechanism 200 are improved.

To sum up, through the structural design of the bridging rods 5 spanning the supporting side rods 3 and the intermediate support rods 4, which are made of cardboard that is continuously bent and rolled, it can be used without providing metal rods. Under this method, the bending structural strength of the bridge rods 5 is improved, so that the paper pallet mechanism 200 can have better load-carrying capacity while maintaining a lightweight condition. And it can be further provided by arranging the spacers 6 which are also made of continuous bending of cardboard on the support side bars 3 and the middle support rods 4, and making the spacers 6 lean against the bridging bars 5 to face each other. The structural design between the sides further improves the structural strength of the finished paper pallet mechanism 200. Therefore, the paper pallet mechanism 200 of the present invention is indeed a very innovative, convenient and practical creation, and can indeed achieve the purpose of the present invention.

However, the above are only examples of the present invention. They cannot be used to limit the scope of the present invention. All simple equivalent changes and modifications made based on the patent scope of the present invention and the contents of the patent specification are still within the scope of the present invention. within the scope covered by the patent of this invention.

200: Paper pallet mechanism 3: Support side pole 4: Middle support rod 5: jumper rod 51:Longboard department 511: Long outside edge 512: Long outer edge 52: Long tubular structure part 520: first open end 521: Long lateral wall 522: Long outer bottom wall 523:Long vertical wall 524:Long top wall 525: Long inner wall 526: Long inner bottom wall 527:Long diagonal support wall 528: Long end wall 53: First end cover part 6: Spacer seat 61:Shortcomings Department 611:Short side 612:Short end edge 62: Short tubular structure part 620: Second open end 621:Short lateral wall 622:Short outer bottom wall 623:Short vertical wall 624:Short top wall 625:Short medial wall 626:Short inner bottom wall 627:Short inclined support wall 628:Short end wall 63: Second end cap part 7: Top plate 901:First direction 902:Second direction

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: Figure 1 is an exploded perspective view illustrating the structure of a first embodiment of the paper pallet mechanism of the present invention; Figure 2 is a plan view illustrating the unfolded state of the cardboard used to bend to produce a bridging rod of the first embodiment; Figure 3 is an incomplete front view illustrating the crossover rod structure of the first embodiment; Figure 4 is a cross-sectional view illustrating the jumper rod structure of the first embodiment; Figure 5 is an exploded perspective view illustrating the structure of a second embodiment of the paper pallet mechanism of the present invention; Figure 6 is a side cross-sectional view illustrating the arrangement structure of a plurality of crossover rods and a plurality of spacers in the second embodiment; Figure 7 is a front view illustrating the spacer structure of the second embodiment; Figure 8 is a cross-sectional view illustrating the spacer structure of the second embodiment; and Figure 9 is an exploded side view illustrating the structure of a third embodiment of the paper pallet mechanism of the present invention.

200: Paper pallet mechanism

3: Support side pole

4: Middle support rod

5: jumper rod

51:Longboard department

511: Long outside edge

512: Long outer edge

52: Long tubular structure part

53: First end cover part

901:First direction

902:Second direction

Claims (10)

A paper pallet mechanism, including: Two paper supporting side bars extend horizontally along a first direction and are spaced parallel along a second direction that is horizontally orthogonal to the first direction; and A plurality of paper bridging rods are arranged in parallel along the first direction, and extend horizontally along the second direction to span the top surfaces of the supporting side rods. Each bridging rod includes a horizontally extending along the second direction. The long plate part, and two long tubular structural parts respectively connected to the two opposite long outer sides of the long plate part and leaning against the bottom surface of the long plate part along the first direction, the equal long tubular structural parts are stacked Directly fixed on the top surface of the supporting side poles, each long tubular structural part extends outward from the long plate part and is continuously bent into a rectangular tube shape, and has a long outer wall protruding vertically downward from the long plate part , a long outer bottom wall protruding horizontally from the bottom edge of the long outer wall to another long tubular structural part, and a long vertical protruding upward from the long outer bottom wall and upright and abutting against the other long tubular structural part. wall, a long top wall protruding from the top edge of the long vertical wall toward the long outer wall and overlapping the bottom surface of the long plate portion, and a long top wall protruding downward from the long top wall and overlapping the long outer wall. The long inner wall of the long inner wall, a long inner bottom wall protruding from the bottom edge of the long inner wall toward the long vertical wall and stacked against the long outer bottom wall, and a long inner bottom wall protruding obliquely upward from the long inner bottom wall. A long inclined support wall that abuts the bottom surface of the long top wall, and a long end wall that protrudes diagonally downward from the top edge of the long inclined support wall and abuts the connection between the long inner wall and the long inner bottom wall. The paper pallet mechanism of claim 1, wherein each long tubular structural part has two first open ends spaced apart from each other along the second direction, and each bridging rod further includes two respectively fixed on The first end cover portions of the two opposite end surfaces of the equal-length tubular structural portion in the second direction, each first end cover portion covers the first opening ends of the corresponding ends of the equal-long tubular structural portion. The paper pallet mechanism of claim 2, wherein each long plate portion also has two long outer end sides respectively connected between two ends of the equal long outer sides, and the first end cover portions are respectively Connected to the equal long outer end edges, each first end cover portion is bent and extended downward from the corresponding long outer end edge, and overlaps the end surface of the corresponding end of the equal long tubular structural portion. The paper pallet mechanism as claimed in claim 1, further comprising a plurality of paper spacers connected to the top surfaces of the supporting side bars and respectively leaning against the opposite sides of the bridging bars. The paper pallet mechanism according to claim 1, further comprising an intermediate support bar extending horizontally along the first direction and arranged parallel to the supporting side bars at intervals along the second direction, and the bridging bars are further supported by The butt joint is connected to the top surface of the middle strut. The paper pallet mechanism as described in claim 5, which further includes a plurality of paper-made parts connected to the top surfaces of the supporting side rods and the middle support rods, and respectively and leaning against the opposite sides of the bridging rods. Spacer seats. The paper pallet mechanism of claim 4 or 6, wherein each spacer has a short plate portion that is arranged horizontally and has two parallel short sides spaced apart along the first direction, and two short plates respectively connected to The short sides are along the first direction and are against the short tubular structural portions on the bottom surface of the short plate portion. The short tubular structural portions are against the opposite side surfaces of the corresponding two bridging rods, and each The short tubular structural part extends outward from the short plate part and is continuously bent into a rectangular tube shape. The paper pallet mechanism of claim 7, wherein each short tubular structural part has a short outer wall protruding vertically downward from the short plate part, and a short outer wall extending horizontally from the bottom edge of the short outer wall to the other. The short outer bottom wall of the short tubular structural part, a short vertical wall extending upright from the short outer bottom wall and upright and abutting against another short tubular structural part, and a short outer bottom wall extending from the top edge of the short vertical wall toward the short outer wall A short top wall protrudes in the direction and overlaps the bottom surface of the short plate portion, a short inner wall protrudes downward from the short top wall and overlaps with the short outer wall, and a short inner wall extends from the bottom edge of the short inner wall toward The short inner bottom wall protrudes in the direction of the short vertical wall and overlaps the short outer bottom wall, a short inclined support wall protrudes obliquely upward from the short inner bottom wall and abuts against the bottom surface of the short top wall, and A short end wall protrudes obliquely downward from the short inclined support wall and abuts against the connection between the short inner wall and the short inner bottom wall. The paper pallet mechanism of claim 8, wherein each short tubular structural part has two second open ends spaced apart from each other along the second direction, and each spacer further includes two respectively fixed on the The second end cover portions of the two opposite end surfaces of the short tubular structural portions in the second direction, each second end cover portion covers the second open ends of the corresponding ends of the short tubular structural portions. The paper pallet mechanism of claim 9, wherein each short plate portion also has two short end sides respectively connected between two ends of the short sides, and the second end cover portions are respectively connected to Each second end cover portion of the short end sides is bent and extended downward from the corresponding short end side, and overlaps the end surface of the corresponding end of the short tubular structural parts.

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