JP2022135564A - palette - Google Patents

Abstract

To provide a pallet capable of suppressing damage to pillars.SOLUTION: In a pallet 1, a fork insertion portion 7 is formed between a plurality of pillars 2, 3, 4, and the fork insertion portion 7 includes a first fork insertion path 8 and a second fork insertion path 9 extending in a direction substantially perpendicular to the first fork insertion path 8. Each of the pillars 2, 3, 4 has a first wall 25 and a second wall 26 forming inner surfaces of the first fork insertion path 8 and the second fork insertion path 9, respectively. Each of the pillars 2, 3, 4 includes: first pillar inner inclined ribs 33 extending from the first wall 25 and the second wall portion 26 while being inclined to central portions of the pillars 2, 3, and 4, respectively; a second pillar inner inclined rib 35 extending from an inner corner portion 34 where the first wall 25 and the second wall 26 are connected, toward the central portions of the pillars 2, 3, and 4; and an inner first pillar inclined rib 38 extending while being inclined to a side apart from each inner corner portion 34, as the first pillar inner inclined rib 33.SELECTED DRAWING: Figure 3

Description

TECHNICAL FIELD The present invention relates to a pallet used for transporting articles and the like.

In general, a pallet used for transporting goods includes a plurality of pillars, an upper deck that connects the upper ends and the lower ends of the pillars, and a lower deck, A fork insertion part into which a fork such as a forklift can be inserted is provided between the pillars. In addition, in order to reinforce the vicinity of the entrance of the fork insertion portion, the portion of the column portion that constitutes the side edge portion of the fork insertion portion is configured as a curved portion or an inclined portion, and the curved portion is formed inside the column portion. There is a technique of providing an inner wall connected to a portion or an inclined portion (see, for example, Patent Document 1, etc.).

JP-A-2000-247330

By the way, the corner posts provided at the four corners of the pallet, the intermediate posts provided at intermediate portions of the pair of corner posts arranged along each side of the pallet, and the central post provided at the center of the pallet. In the pallet (4-way pallet) provided with the There is concern about collisions in the vicinity. Therefore, even if the vicinity of the entrance of the fork insertion portion is reinforced by adopting the technique disclosed in Patent Literature 1, the column portion may be damaged during the operation of inserting the fork into the fork insertion portion.

SUMMARY OF THE INVENTION An object of the present invention is to provide a pallet capable of preventing damage to the pillars.

Hereinafter, each means suitable for solving the above object will be described separately. It should be noted that actions and effects specific to the corresponding means will be added as necessary.

Means 1. A fork inserting portion comprising a plurality of pillars and an upper deck portion connecting upper end portions between the plurality of pillars, wherein a fork of a transportation means having a fork can be inserted between the plurality of pillars. is formed, and in a pallet having a substantially rectangular shape in plan view,
The pillars include corner pillars provided at four corners of the pallet, an intermediate pillar provided at an intermediate portion between the pair of corner pillars arranged along each side of the pallet, and the center of the pallet. and a central pillar provided in the part,
The fork insertion portion includes a first fork insertion path extending through the pallet in a direction substantially orthogonal to a predetermined side portion of the pallet, and a first fork insertion path substantially extending from the first fork insertion path. a second fork insertion path extending through the pallet in an orthogonal direction;
Each of the pillars includes a peripheral wall that forms an outer peripheral surface of the pillar,
The peripheral wall portion is connected to the upper deck portion and forms an inner side surface of the first fork insertion path, and is connected to the upper deck portion to form an inner side surface of the second fork insertion path. and a second wall portion for
Each of the pillars
first column inner inclination extending from the first wall portion and the second wall portion toward the central portion side of the column portion with respect to the first wall portion and the second wall portion, respectively; ribs and
a second column inner inclined rib extending from an inner corner portion where the first wall portion and the second wall portion are connected toward a central portion side of the column portion;
A pallet characterized by comprising, as said first column inner inclined rib, an inner side first column inner inclined rib extending at an angle to a side away from each of said inner corner portions.

According to Means 1, the strength of the vicinity of each inner corner portion of the column portion (peripheral wall portion) can be increased by the inner side first column inner inclined rib and the second column inner inclined rib. Further, the inner side first pillar inner inclined rib and the second pillar inner inclined rib are set in the moving direction of the fork when the fork comes into contact with the vicinity of the inner corner portion of the pillar portion when the fork is inserted into the fork insertion portion. It extends so as to be as close to the direction parallel to the . As a result, when the fork collides with the vicinity of the inner corner portion of the pillar portion, the vicinity of the inner corner portion is effectively supported by the inner side first pillar inner inclined rib and the second inner pillar inner inclined rib, It is possible to suppress deformation and the like of the inner side first column inner inclined rib and the second column inner inclined rib itself. Therefore, it is possible to prevent deformation, damage, and the like in the vicinity of the inner corner portion of the column portion.

Means 2. The pallet according to means 1, further comprising a connecting rib connecting between the inner first column inner slanted rib and the second inner column slanted rib.

According to the means 2, it is possible to suppress the deformation of the inner side first pillar inner inclined rib and the second pillar inner inclined rib, and further improve the strength near the inner corner portion of the pillar portion. In addition, the stress generated in either the first inner slanted rib on the inner side or the slanted rib on the second pillar connected by the connecting rib can be easily dispersed via the connecting rib. , when the fork collides with the vicinity of the inner corner portion of the column portion, even if a relatively large stress acts on either the inner side first column inner inclined rib or the second column inner inclined rib, It is possible to reduce the burden on the inner side first pillar inner inclined rib and the second pillar inner inclined rib. In addition, by connecting the inner side first column inner inclined rib connected to the first wall portion and the inner side first column inner inclined rib connected to the second wall portion via the connecting rib, , When one of the inner side first column inner inclined ribs hits the fork through the first wall or the second wall, the other inner side first column inner inclined rib is moved to the one inner side It can greatly contribute to reinforcement of the inclined rib inside the first column, and efficient reinforcement can be performed without excessively increasing the number of ribs for reinforcement.

Means 3. A first end rib connected to the end of the inner first column inner inclined rib is provided,
Of the first end ribs of the corner pillar, the end opposite to the end connected to the inner first pillar inner inclined rib is formed by the first wall and the second wall. directly or indirectly connected to at least one of the parts,
Of the first end ribs of the intermediate pillar and the central pillar, the end opposite to the end connected to the inner first pillar inner inclined rib is the first wall , the second wall portion, and the other first end ribs provided on the same column portion are directly or indirectly connected to at least one of the The pallet according to the means 2 to do.

According to the means 3, the first end rib suppresses the deformation of the inner side first column inner inclined rib and the second column inner inclined rib (the second column inner inclined rib acts via the connecting rib). ), and when the fork collides near the inner corner portion of the pillar, the stress received by the inner first pillar inner slanted rib and the second pillar inner slanted rib is applied to the first wall and the second Walls or other first end ribs and perimeters thereof may be readily distributed. Therefore, it is possible to mitigate the impact when the fork collides with the vicinity of the inner corner portion of the pillar, thereby further suppressing damage to the pillar.

Means 4. At least one of the intermediate column portion and the central column portion includes a substantially cross-shaped cross rib having an end connected to the peripheral wall portion, and at least one of the ribs constituting the cross rib is , the inner first pillar inner inclined rib, the second inner pillar inner inclined rib, the connecting rib, and the first end rib are provided at symmetrical positions. palette.

According to the means 4, the inner first column inner inclined rib, the second inner column inclined rib, the connecting rib, and the first end rib are arranged in a well-balanced manner, and the strength of the corresponding column portion is efficiently increased. be able to.

Means 5. The peripheral wall portion of the corner post portion and the intermediate post portion includes an outward wall portion that constitutes the outer peripheral surface of the pallet,
The corner post portion and the intermediate post portion extend from the outer corner portion where the outward wall portion is connected to the first wall portion or the second wall portion forming the entrance of the fork insertion portion. Equipped with a third pillar inner inclined rib extending toward the central part side of the pillar part,
The corner post portion and the intermediate post portion are provided on the entrance side of the fork insertion portion as inclined ribs inside the first post, and are inclined toward the side away from the outer corner portion. Equipped with sloping ribs in the pillars,
an entrance-side first end rib connected to an end of the entrance-side first column inner inclined rib is provided,
an end of the entrance-side first end rib opposite to the end connected to the entrance-side first column inner inclined rib is connected to the first end rib;
The corner post portion and the intermediate post portion are
a second connecting rib that connects between the third column inner inclined rib and the inlet side first column inner inclined rib;
a third connecting rib that connects between the third column inner inclined ribs provided on the same column portion,
The connecting rib, the first end rib, the inlet-side first end rib, the second connecting rib, and the third connecting rib form a continuous circumference that continues in a substantially annular shape on the inner side of the peripheral wall portion. Pallet according to means 3 or 4, characterized in that it is configured with ribs.

According to the means 5, a continuous peripheral rib that continues in a substantially annular shape is provided on the inner side of the peripheral wall portion, and the continuous peripheral rib comprises an inner side first pillar inner inclined rib and a second pillar inner inclined rib. It is connected to the vicinity of the inner corner portion of the pillar portion (peripheral wall portion) via. Therefore, when the fork collides near the inner corner portion of the pillar, the stress received by the inner first pillar inner slanted rib and the second pillar inner slanted rib is transferred to the continuous circumferential rib and its peripheral portion. can be distributed more widely. As a result, the effect of mitigating the impact when the fork collides with the vicinity of the inner corner portion of the pillar and further suppressing damage to the pillar is further achieved.

Means 6. Regarding at least one of the intermediate column and the central column,
The first end rib is provided so as to extend on an extension line of the inner side first column inner inclined rib,
a second end rib connected to the end of the second column inner inclined rib and extending on an extension line of the second column inner inclined rib;
The first end rib and the second end rib are connected to the other first end rib and the second end rib provided on the same column. A pallet according to any one of means 3 to 5, characterized in that:

According to means 6, the first end rib and the second end rib cause the inner side first column inner inclined rib and the second column inner inclined rib to move toward the inner peripheral side of the column (partially In addition, at the extension destination of the first end rib and the second end rib, it is connected to the other first end rib and the second end rib there is Therefore, when the fork collides with the vicinity of the inner corner portion of the pillar, the effect of supporting the vicinity of the inner corner portion to prevent deformation and damage is further achieved. The term "another first end rib" is intended to include the "entrance-side first end rib" of the means 5 described above.

Means 7. A portion of the peripheral wall portion of the intermediate pillar portion that is sandwiched between the inner first pillar inner inclined ribs that are provided in pairs across the second pillar inner inclined ribs corresponding to the inner corner portions. A pallet according to any one of means 1 to 6, characterized in that a certain corner corresponding portion is configured to be thicker than a portion adjacent to the corner corresponding portion.

According to the means 7, it is possible to reinforce the vicinity of the inner corner portion of the intermediate column portion, and it is possible to more reliably prevent the pallet from being damaged when the fork is inserted into the fork insertion portion.

Figure 3 is a perspective view of a pallet; It is a horizontal sectional view of a lower component. It is a partial expansion perspective view including a partial cross section of a lower component. It is a partially enlarged cross-sectional view showing the lower component side of the corner post. It is a partial expansion perspective view which shows the lower structure part side of an intermediate|middle pillar part. It is a partially enlarged cross-sectional view showing the lower component side of the central column. It is a horizontal sectional view of an upper component. 4 is a partially enlarged cross-sectional view of the upper component; FIG. It is a partial expansion perspective view which shows the upper component part side of a corner post part. It is a partial expansion perspective view which shows the upper structure part side of an intermediate|middle pillar part. It is a partial expansion perspective view which shows the upper component part side of a central pillar. FIG. 11 is a partially enlarged cross-sectional view showing an intermediate column portion in another embodiment; FIG. 11 is a partially enlarged cross-sectional view showing an intermediate column portion in another embodiment;

An embodiment will be described below with reference to the drawings. As shown in FIGS. 1, 2, and 7, the pallet 1 has a substantially rectangular shape in plan view. The pallet 1 has four corner posts 2 provided at the four corners of the pallet 1, and an intermediate post 3 provided at an intermediate portion between the pair of corner posts 2 arranged along each side of the pallet 1. , a central pillar 4 provided in the central portion of the pallet 1, the corner pillar 2, the intermediate pillar 3, and the upper deck 5 connecting the upper ends of the central pillar 4, the corner pillar 2, It has an intermediate post 3 and a lower deck 6 connecting the lower ends of the central post 4 . A fork inserting portion 7 into which a fork of a forklift, a handlift, or the like as a transportation means can be inserted is formed between each corner post portion 2 and the intermediate post portion 3 . The fork insertion portion 7 is provided with a first fork insertion path 8 extending through the pallet 1 in a direction substantially perpendicular to a predetermined side portion of the pallet 1, and with respect to the first fork insertion path 8. and a second fork insertion path 9 extending through the pallet 1 in a substantially orthogonal direction. In other words, the pallet 1 of this embodiment is a 4-way insertion type pallet into which forks can be inserted from four side surfaces constituting the outer peripheral surface of the pallet 1 .

In addition, as shown in FIG. 1, in the present embodiment, the upper surfaces of the corner pillars 2, the intermediate pillars 3, the central pillars 4, and the upper deck 5 are used as a "placing surface 10" on which an article can be placed. is configured. Furthermore, the corner pillar 2, the middle pillar 3, the central pillar 4, and the lower surface of the lower deck 6 make contact with the place where the pallet 1 is installed (installation surface such as the floor). is configured.

In addition, the pallet 1 includes an upper component portion 12 having corner posts 2, intermediate posts 3, and upper portions of the central posts 4, an upper deck portion 5, corner posts 2, and intermediate posts. 3 , and a lower component 13 comprising a lower portion of the central post 4 and a lower deck 6 . The upper constituent portion 12 and the lower constituent portion 13 are integrally formed of polypropylene. The lower edge of the corner post 2, the intermediate post 3, and the central post 4 of the upper component 12, and the corner post 2, the intermediate post 3, and the central post 4 of the lower component 13 By welding (for example, thermal welding, vibration welding) the upper edges of the upper and lower constituent parts 12 and 13, the pallet 1 is configured.

Furthermore, as shown in FIGS. 1 and 7, in the present embodiment, the entire area above the fork insertion portion 7 (the first fork insertion path 8 and the second fork insertion path 9) is blocked by the upper deck portion 5. On the other hand, as shown in FIG. 2, the lower deck portion 6 has casters attached to the lower surface side of the forks of the handlift in the range where the first fork insertion path 8 and the second fork insertion path 9 intersect. are provided with caster openings 15 for grounding. In addition, as shown in FIGS. 7 and 8, on the lower surface side of the upper deck portion 5, ribs connecting the pillars 2, 3, and 4 and the ribs extending in a direction substantially perpendicular to the ribs are provided. An upper deck reinforcing rib 16 is provided which is formed by connecting and extending ribs. Further, as shown in FIGS. 2 and 3, the lower deck portion 6 also has ribs connecting the pillars 2, 3, and 4, and extends while being connected to the ribs in a direction substantially orthogonal to the ribs. Lower deck reinforcing ribs 17 are provided which consist of existing ribs.

As shown in FIGS. 1 to 3, 7, etc., the corner pillars 2, the intermediate pillars 3, and the central pillars 4 form a peripheral wall portion 21 that forms their outer peripheral surfaces, and a mounting surface 10. and a lower wall portion 23 forming the ground plane 11 . The peripheral wall portion 21 includes an outward wall portion 24 that forms the outer peripheral surface of the pallet 1, a first wall portion 25 that is connected to the upper deck portion 5 and forms an inner surface of the first fork insertion path 8, and the upper deck portion 5. and a second wall portion 26 that constitutes the inner surface of the second fork insertion path 9 . The outward wall portion 24 , the first wall portion 25 , and the second wall portion 26 basically extend substantially parallel (or substantially orthogonal) to each side portion of the pallet 1 . In addition, corner portions (outer corner portions 36) between the first wall portion 25 and the second wall portion 26 of the corner post portion 2 and the intermediate post portion 3 and the outward wall portion 24 are The width of the fork insertion portion 7 in the vicinity of the entrance is rounded so that the width of the fork insertion portion 7 gradually widens from the inner side toward the entrance (end portion).

In addition, as shown in FIGS. 1, 3, 11, etc., the central column 4 has information about articles to be placed on the pallet 1 in the central portion of the central column 4 (pallet 1) in a plan view. A tag storage unit 27 is provided for storing an RFID tag (not shown) in which is stored. The RFID tag has a substantially rectangular parallelepiped shape and is housed in the tag housing portion 27 with its longitudinal direction oriented vertically (substantially vertically). Furthermore, the tag containing portion 27 is configured to hold the RFID tag so that each side surface of the RFID tag contained in the tag containing portion 27 forms an angle of approximately 45 degrees with respect to each side portion of the pallet 1. It is

Now, as shown in FIGS. 4 to 6, 9 to 11, etc., each of the pillars 2, 3, 4 has a substantially cross-shaped cross rib 31 whose end is connected to the peripheral wall 21. . Each rib constituting the cross rib 31 is substantially perpendicular to the substantially central portion in the lateral width direction of each wall portion (the first wall portion 25, the second wall portion 26, and the outward wall portion 24) constituting the peripheral wall portion 21. are concatenated as A portion of the cross rib 31 that is connected to at least the peripheral wall portion 21 extends over the entire height direction of the column portions 2, 3, and 4 (including the welded portion between the upper component portion 12 and the lower component portion 13). It is a full-height rib that extends continuously in the height direction of the portions 2, 3, and 4 and is connected to the upper wall portion 22 and the lower wall portion 23). 4 and 9, the cross ribs 31 of the corner post 2 shown in FIGS. 5 and 10, the cross rib 31 of the intermediate column 3 shown in FIGS. A notch is formed in the rib connecting between the ribs 26 so as to leave a connecting portion with the upper wall portion 22 and the lower wall portion 23 . 6 and 11 is provided with a substantially rectangular cylindrical enclosing wall portion 32 provided so as to surround the tag accommodating portion 27, and each side surface of the enclosing wall portion 32 extends at an angle of about 45 degrees to each side of the . In the present embodiment, the enclosing wall portion 32 and the tag housing portion 27 are arranged in the central portion of the cross rib 31 of the central column portion 4, forming the cross rib 31, and each rib connected to the peripheral wall portion 21. , intersects and connects with the corners of the surrounding wall 32, and as shown in FIG. is connected to the wall portion forming the tag housing portion 27 in such a manner as to extend to the inner peripheral side of the surrounding wall portion 32 .

As shown in FIGS. 4 to 6, 9 to 11, etc., each column 2, 3, 4 extends from the first wall 25 and the second wall 26 to the first wall 25 and the second wall 26, respectively. The first wall portion 25 and the second wall portion 26 are connected to the first wall portion 25 and the second wall portion 26 with the first column inner inclined rib 33 that extends inclined toward the central portion side of the column portions 2, 3, and 4 with respect to the second wall portion 26. A second column inner inclined rib 35 extending from the inner corner portion 34 to the center portion side of the column portions 2, 3, 4 is provided. It should be noted that the first-column inner inclined rib 33 and the second-column inner inclined rib 35 of the present embodiment are full-height ribs. Further, as shown in FIGS. 4 and 5 (FIGS. 9 and 10), the corner post 2 and the intermediate post 3 are the first wall portion 25 constituting the entrance of the fork insertion portion 7, or the first wall portion 25. A third post inner inclined rib 37 extending from an outer corner portion 36 where the second wall portion 26 and the outward wall portion 24 are connected toward the center portion side of the corner post portion 2 or the intermediate post portion 3 is provided. there is

As shown in FIGS. 4 to 6 (FIGS. 9 to 11) and the like, each of the columns 2, 3, and 4 has a first wall portion 25 and a second wall portion 26 as the first column inner inclined rib 33. Among them, from the portion on the inner corner portion 34 side of the center portion of the width direction of the first wall portion 25 or the second wall portion 26 toward the center portion side of the corresponding column portion 2, 3, 4, An inner side first column inner inclined rib 38 is provided so as to extend in an inclined manner away from the inner corner portion 34 . In the present embodiment, a pair of inner first-column inclined ribs 38 are located symmetrically with respect to each inner corner portion 34 of each of the columns 2, 3, 4 with a second-column inner inclined rib 35 interposed therebetween. is provided in Furthermore, as shown in FIGS. 4 and 5 (FIGS. 9 and 10), for the corner post 2 and the intermediate post 3, the first wall 25 and Of the second wall portion 26, from the portion of the first wall portion 25 or the inlet side of the fork insertion portion 7 from the center portion of the second wall portion 26 in the lateral width direction, the corresponding column portions 2, 3, 4 It is provided with an entrance-side first column inner inclined rib 39 that extends inclined toward the central portion side and away from the outer corner portion 36 .

As shown in FIGS. 4 to 6, 8, etc., the second column inner inclined rib 35 extends at an angle of about 45 degrees with respect to the first wall portion 25 and the second wall portion . On the other hand, the inner side first column inner inclined rib 38 and the inlet side first column inner inclined rib 39 connected to the first wall portion 25 (second wall portion 26) are connected to the first wall portion 25 ( It extends toward the central portion of the pillars 2, 3, 4 at an angle slightly closer to a right angle than 45 degrees (for example, about 55 degrees) with respect to the second wall portion 26). By maximizing the angle formed between the first in-column inclined rib 33 and the first wall portion 25 (second wall portion 26), the first in-column inclined rib 33 and the first wall portion 25 (second It is possible to increase the strength of the mold for forming the area defined by the two walls 26) at an acute angle.

Further, the third-column inner inclined rib 37 extends substantially parallel to the entrance-side first-column inner inclined rib 39 . Furthermore, the ends of the inner side first column inner inclined rib 38, the inlet side first column inner inclined rib 39, the second column inner inclined rib 35, and the third column inner inclined rib 37 connected to the peripheral wall portion 21 The end on the side opposite to the part is spaced from the cross rib 31 .

In addition, as shown in FIGS. 4 to 6 (FIGS. 9 to 11) and the like, each of the pillars 2, 3, 4 includes a pair of inner first corners provided corresponding to each of the inner corners 34. The end portion of the in-column inclined rib 38 opposite to the end connected to the peripheral wall portion 21 (the first wall portion 25 or the second wall portion 26) and the peripheral wall portion 21 of the second in-column inclined rib 35 A connection rib 41 is provided to connect the end portion opposite to the end portion connected to (the inner corner portion 34). Of the connecting ribs 41 of the present embodiment, at least the connecting portions with the inner side first column inner inclined rib 38 and the second column inner inclined rib 35 are full-height ribs.

Each column 2 , 3 , 4 is provided with a first end rib 42 connected to the end of the inner first column inner inclined rib 38 . Further, as shown in FIGS. 4 and 5 (FIGS. 9 and 10), the corner post 2 and the intermediate post 3 have inlets connected to the ends of the entrance-side first post inner inclined ribs 39. A side first end rib 43 is provided. The first end rib 42 and the entrance-side first end rib 43 are not full-height ribs, but rather protrude from the lower wall portion 23 (upper wall portion 22) toward the central portion in the height direction of the pallet 1. Consists of short ribs. Furthermore, as shown in FIGS. 4 to 6, 8, etc., the first end rib 42 and the inlet side first end rib 43 are the inner side first column inner inclined rib 38 and the inlet side rib 38, respectively. It is provided so as to extend on the extension line of the inclined rib 39 inside the side first column.

As shown in FIGS. 4 and 5 , the corner post 2 and the intermediate post 3 are connected to the ends of the second post slanted ribs 35 and extend along the extension lines of the second post slanted ribs 35 . A second end rib 44 is provided. The second end rib 44 also has the same projecting length as the first end rib 42 instead of the full-height rib. Incidentally, as shown in FIGS. 9 and 10, in the present embodiment, the second end ribs 44 are omitted on the side of the upper structural portion 12 even in the corner post portion 2 and the intermediate post portion 3. ing. In addition, in the present embodiment, a pair of inner first column inner inclined ribs 38 and second inner column inclined ribs 35 are connected to correspond to the inner corner portions 34 of the respective column portions 2, 3, and 4. A mountain-shaped rib-constituting portion having a substantially “mountain”-shaped horizontal cross section, which is composed of ribs 41, is provided, and between the mountain-shaped rib-constituting portion and another mountain-shaped rib-constituting portion or the peripheral wall portion 21 In order to connect indirectly, the first end rib 42 (the corner pillar 2 and the intermediate pillar 3 , is further provided in a "river" shape including the second end rib 44. As shown in FIG.

As shown in FIG. 5 ( FIG. 10 ), of the pair of inner first column inner inclined ribs 38 provided corresponding to the inner corner portions 34 of the intermediate column portion 3 , the inner side of the central column portion 4 side The first end rib 42 connected to the lateral first pillar inner inclined rib 38 is connected (via the cross rib 31) to another first end rib 42 provided on the same intermediate pillar 3. ing. Of the pair of inner first column inner inclined ribs 38 provided corresponding to the inner corner portions 34 of the intermediate column portion 3, the inner first inner column inclined rib 38 on the inlet side of the fork insertion portion 7 is The first end rib 42 connected to the first wall is connected (via the cross rib 31) to the inlet-side first end rib 43 provided on the same intermediate post 3, and indirectly connected to the first wall It is connected to the portion 25 or the second wall portion 26 . Incidentally, portions of the first end rib 42 and the entrance-side first end rib 43 that are connected to the cross rib 31 are slightly curved so that the angle formed with the cross rib 31 approaches a right angle. In addition, the second end rib 44 of the intermediate column portion 3 is connected to another second end rib 44 provided on the same intermediate column portion 3 (via the cross rib 31).

As shown in FIG. 6 (FIG. 11), the end of the first end rib 42 of the central column 4 opposite to the end connected to the inner first column inner inclined rib 38 is It is connected to the wall portion 32 and indirectly connected to the first wall portion 25 and the second wall portion 26 via the surrounding wall portion 32 and the cross rib 31 .

As shown in FIG. 4 (FIG. 9), of the first end ribs 42 of the corner post 2, the end opposite to the end connected to the inner first post inner inclined rib 38 is the same. is connected (via the cross rib 31) to the inlet side first end rib 43 provided in the intermediate column portion 3 of the second wall portion 25 or indirectly connected to the second wall portion 26 ing. Incidentally, portions of the first end rib 42 and the entrance-side first end rib 43 that are connected to the cross rib 31 are slightly curved so that the angle formed with the cross rib 31 approaches a right angle. Further, the corner post 2 is also provided with a second end rib 44 and connected to the cross rib 31, but the corner post 2 has only one second end rib 44 and the other second end ribs 44 are connected to each other. It is not connected with the two end ribs 44 .

As shown in FIGS. 5 and 10, in the present embodiment, regarding the intermediate column portion 3, among the ribs constituting the cross rib 31, the first wall portion 25 or the second wall portion 26 facing the central column portion 4 , and the outward wall portion 24, the inner side first column inner inclined rib 38, the second column inner inclined rib 35, the connecting rib 41, and the first end rib 42 (lower Corresponding to the component 13, a second end rib 44) is also provided at a symmetrical position. Further, as shown in FIGS. 6 and 11, with regard to the central column portion 4, the ribs constituting the cross rib 31 are provided with an inner first column inner inclined rib 38 and a second inner column inclined rib 35, respectively. , a connecting rib 41 and a first end rib 42 are provided at symmetrical positions.

Further, as shown in FIGS. 4 and 5 (FIGS. 9 and 10), the corner post 2 and the intermediate post 3 have the peripheral wall portion 21 (first wall A second connecting rib 45 is provided to connect the end opposite to the end connected to the portion 25 or the second wall portion 26 ) and the third column inner inclined rib 37 . Further, the corner post portion 2 and the intermediate post portion 3 have a third connection that connects the end portions of the third post inner inclined ribs 37 provided in the same corner post portion 2 and the intermediate post portion 3. A rib 46 is provided (the third connecting rib 46 of the corner post 2 is bent in the horizontal section). In this embodiment, the connecting rib 41 , the first end rib 42 , the inlet-side first end rib 43 , the second connecting rib 45 , and the third connecting rib 46 form a substantially annular shape on the inner side of the peripheral wall portion 21 . A continuous circumferential rib that continues to the In this embodiment, the third connecting rib 46 is connected to a position different from the second connecting rib 45 of the third column inner inclined rib 37 (the second connecting rib 45 is connected to the third column inner inclined rib 37). part of the third column inner inclined rib 37 is also included in the continuous circumferential rib.

In addition, as shown in FIGS. 5 and 10 , in the peripheral wall portion 21 of the intermediate pillar portion 3 , a pair of inwardly facing ribs 35 are provided on both sides of the second pillar inner inclined rib 35 corresponding to each inner corner portion 34 . The corner-corresponding portion 48, which is a portion sandwiched between the first side pillar inner inclined ribs 38, is a portion adjacent to the corner-corresponding portion 48 (the first wall portion 25 facing the central pillar portion 4 and the second wall portion 26). of which, the range including the lateral width direction central portion, the first wall portion 25 facing the corner post portion 2, and the outward wall portion of the second wall portion 26 rather than the inner side first post inner inclined rib 38 24 side).

As shown in FIG. 8 and the like, at the connecting portion of the pillars 2, 3, 4 with the upper deck portion 5, the inner side first pillar inner inclined rib 38, the second pillar inner inclined rib 35, the entrance side first pillar The inwardly inclined rib 39 and the cross rib 31 (only the connecting portion of the first wall portion 25 or the second wall portion 26) are connected (continuous) to the upper deck reinforcing rib 16 via the peripheral wall portion 21. . As a result, the inner side first column inner inclined rib 38 of the middle column portion 3, the central column portion 4, and the inner side first column inner inclined rib 38 of the corner column portion 2 form the upper deck reinforcing rib 16. The second-column inner inclined rib 35 of the middle column portion 3, the second-column inner inclined rib 35 of the corner column portion 2, and the second-column inner inclined rib 35 of the central column portion 4 are connected to each other via the upper They are connected to each other via deck reinforcing ribs 16 . Further, as shown in FIG. 3 and the like, with respect to the connecting portions of the pillars 2, 3, and 4 with the lower deck portion 6, the inner side first pillar inner inclined rib 38, the second pillar inner inclined rib 35, the entrance side The first column inner inclined rib 39 and the cross rib 31 (only the connecting portion of the first wall portion 25 or the second wall portion 26) are connected (continuously) to the lower deck reinforcing rib 17 via the peripheral wall portion 21. ing).

As described in detail above, according to the present embodiment, the inner side first column inner inclined rib 38 and the second inner column inclined rib 35 allow the inner side of each of the columns 2, 3, and 4 (peripheral wall portion 21) to The strength in the vicinity of the corner portion 34 can be increased. Further, the inner side first column inner inclined rib 38 and the second column inner inclined rib 35 are arranged so that the fork is inserted into the fork insertion portion 7 and the fork near the inner corner portion 34 of the column portions 2 , 3 , 4 . It extends so as to be as close as possible to a direction parallel to the moving direction of the fork when it comes into contact with (for example, it collides vigorously). As a result, when the fork collides with the vicinity of the inner corner portion 34 of the pillars 2, 3, 4, the vicinity of the inner corner portion 34 is moved to the inner first pillar inner inclined rib 38 and the second pillar inner inclined rib. While being effectively supported by 35, the deformation|transformation etc. of the inner side 1st column inner inclined rib 38 and the 2nd column inner inclined rib 35 itself can be suppressed. Therefore, deformation, damage, etc., near the inner corner portions 34 of the pillars 2, 3, 4 can be suppressed.

In addition, a connecting rib 41 that connects between the inner side first column inner inclined rib 38 and the second column inner inclined rib 35 is provided. Therefore, deformation of the inner first column inner inclined rib 38 and the second column inner inclined rib 35 can be suppressed, and the strength near the inner corner portions 34 of the column portions 2, 3, 4 is further improved. can be made Further, the stress generated in either the inner first column inclined rib 38 or the second column inner inclined rib 35 connected by the connecting rib 41 can be easily dispersed via the connecting rib 41. For example, when the fork collides with the vicinity of the inner corner portion 34 of the pillars 2, 3, 4, either the inner first pillar inner inclined rib 38 or the second pillar inner inclined rib 35 Even when a relatively large stress acts, it is possible to reduce the burden on the inner side first column inner inclined rib 38 and the second column inner inclined rib 35 . In addition, the inner side first column inner inclined rib 38 connected to the first wall portion 25 and the inner side first column inner inclined rib 38 connected to the second wall portion 26 are connected via the connecting rib 41. When one of the inner side first column inner inclined ribs 38 collides with the fork through the first wall portion 25 or the second wall portion 26, the other inner side first column The inwardly inclined ribs 38 can greatly contribute to the reinforcement of the inwardly inclined ribs 38 of the first inner column, and efficient reinforcement can be performed without excessively increasing the number of reinforcing ribs.

In addition, a first end rib 42 is provided that is connected to the end of the inner first column inner inclined rib 38 . In particular, the end of the first end rib 42 of the corner post 2 opposite to the end connected to the inner first post inclining rib 38 is the first wall 25 or the second It is indirectly connected to the wall portion 26 (via the surrounding wall portion 32 and the cross rib 31). Furthermore, the end of the first end rib 42 of the intermediate column 3 opposite to the end connected to the inner first column inner inclined rib 38 is provided on the same intermediate column 3. It is directly connected to the other first end rib 42 or the entrance-side first end rib 43 (in other words, via the cross rib 31). In addition, of the first end ribs 42 of the central column 4 , the end opposite to the end connected to the inner first column inner inclined rib 38 is provided on the same central column 4 . is connected directly (via the cross rib 31 from a different point of view) to the entrance-side first end rib 43 (via the entrance-side first end rib 43, the first wall 25, Alternatively, it can be said that it is indirectly connected to the second wall portion 26). Therefore, the first end rib 42 suppresses the deformation of the inner side first column inner inclined rib 38 and the second column inner inclined rib 35 (the second column inner inclined rib 35 is formed via the connecting rib 41). ), and when the fork collides with the vicinity of the inner corner portion 34 of the pillars 2, 3, 4, the inner side first pillar inner inclined rib 38 and the second pillar inner inclined rib 35 receive The stress can be easily distributed to the first wall portion 25, the second wall portion 26, or another first end rib 42 (inlet-side first end rib 43) and its periphery. Therefore, the impact when the fork collides with the vicinity of the inner corner portions 34 of the pillars 2, 3, 4 can be mitigated, and damage to the pillars 2, 3, 4 can be further suppressed.

Further, the intermediate column portion 3 is located within the inner first column with respect to the rib that connects the wall portion facing the central column portion 4 among the ribs that constitute the cross rib 31 and the outward wall portion 24 . The inclined rib 38, the second column inner inclined rib 35, the connecting rib 41, and the first end rib 42 are provided at symmetrical positions. In addition, the central pillar 4 has an inner first pillar inner slanted rib 38, a second pillar inner slanted rib 35, a connecting rib 41, and a first end rib 38 for both ribs constituting the cross rib. Partial ribs 42 are provided at symmetrical positions. For this reason, the inner side first column inner inclined rib 38, the second column inner inclined rib 35, the connecting rib 41, and the first end rib 42 are arranged in a well-balanced manner, and the intermediate column portion 3 and the central column portion 4 strength can be efficiently increased.

In the corner post 2, the connecting rib 41, the first end rib 42, the inlet-side first end rib 43, the second connecting rib 45, and the third connecting rib 46 are connected to form a peripheral wall. A continuous circumferential rib that continues in a substantially annular shape is formed on the inner side of the portion 21 . In the intermediate column portion 3 , the peripheral wall portion 21 A continuous circumferential rib that continues in a substantially annular shape is formed on the inner side of the . In the corner post portion 2, the peripheral wall portion 21 A continuous circumferential rib that continues in a substantially annular shape is formed on the inner side of the . In this way, the columns 2, 3, and 4 are provided with continuous circumferential ribs on the inner side of the peripheral wall portion 21, and the continuous circumferential ribs are formed by the inner side first column inwardly inclined rib 38 and the second column. Via the inwardly inclined rib 35, the pillars 2, 3, 4 (peripheral wall portion 21) are connected to the vicinity of the inner corner portions 34 thereof. Therefore, when the fork collides with the vicinity of the inner corner portions 34 of the pillars 2, 3, 4, the stress received by the inner side first pillar inner inclined rib 38 and the second pillar inner inclined rib 35 is continuously applied. It can be more widely distributed around the circumferential rib and its perimeter. As a result, the effect of mitigating the impact when the fork collides with the vicinity of the inner corner portions 34 of the pillars 2, 3, 4, and further suppressing the damage of the pillars 2, 3, 4, etc., is further achieved. be done.

In addition, the first end rib 42 (the corner post 2 and the middle post 3 are further second end ribs 44) allows the inner side first post inner inclined rib 38 (and the second post inner inclined rib The ribs 35) extend (even partially) toward the inner periphery of the columns 2, 3, and 4. As shown in FIG. In particular, with respect to the intermediate column portion 3, the extension destinations of the first end rib 42 and the second end rib 44 are the other first end rib 42, the inlet-side first end rib 43, and the second end rib 43. It is connected with the two end ribs 44 (via the cross ribs 31). Therefore, when a fork collides with the vicinity of the inner corner portions 34 of the pillars 2, 3, 4, the effect of supporting the vicinity of the inner corner portions 34 to prevent deformation and damage is further achieved.

Also, of the peripheral wall portion 21 of the intermediate pillar portion 3, corresponding to each inner corner portion 34, it is sandwiched by a pair of inner side first pillar inner inclined ribs 38 provided with a second pillar inner inclined rib 35 interposed therebetween. A portion corresponding to a corner 48 is configured to be thicker than a portion adjacent to the portion corresponding to the corner 48 . Therefore, it is possible to reinforce the vicinity of the inner corner portion 34 of the intermediate column portion 3, and to more reliably prevent damage to the pallet 1 when the fork is inserted into the fork insertion portion 7.

In addition, it is not limited to the description content of the said embodiment, For example, you may implement as follows. Of course, other applications and modifications not exemplified below are naturally possible.

(a) In the above embodiment, the first end rib 42 and the inlet-side first end rib 43 are the inner first-column inner inclined rib 38 and the inlet-side first-column inner inclined rib 39, respectively. , for example, as shown in FIG. may be configured to be connected substantially perpendicularly to the .

Further, in the above embodiment, the first end rib 42 of the intermediate post 3 is connected (via the cross rib 31) to the other first end rib 42 or the inlet-side first end rib 43. , the first end rib 42 of the corner post 2 is configured to be connected (via the cross rib 31) to the inlet side first end rib 43, but as shown in FIG. It is provided so as to connect between the end portion of the side first column inner inclined rib 38 and the first wall portion 25 or the second wall portion 26 (particularly, in FIG. 13, both ends of the connecting rib 41 (a first end rib 42 may be provided to extend the . Incidentally, as shown in FIG. 13, the first end rib 42 connected to the first wall portion 25 or the second wall portion 26 and the other (via the cross rib 31) as in the above embodiment. The first end rib 42 or the first end rib 42 connected to the inlet-side first end rib 43 may be used together. Alternatively, for example, instead of the first end rib 42, a portion of the connecting rib 41 between the inner first end rib 42 and the second column inner inclined rib 35 and the cross rib 31 or the like may be provided. However, when the fork collides near the inner corner portion 34, the inner side first end rib 42 of the connecting ribs 41 and the second column inner inclined rib 35 It is desirable that the first end rib 42 be connected to the end of the inner side first column inwardly inclined rib 38 because there is a concern that stress will be concentrated on the portion therebetween. In FIGS. 12 and 13, the modified example is embodied in the middle column portion 3, but it is also possible to apply the modified example to the corner column portion 2 and the central column portion 4. FIG.

Further, in the above-described embodiment, whether or not each rib provided inside the pillars 2, 3, and 4 is a full-height rib can be changed as appropriate. The rib extends from the upper wall portion 22 and the lower wall portion 23 to an intermediate position in the height direction of the upper component portion 12 and the lower component portion 13 (not continuous in the entire height direction of the pallet 1). ) ribs, or a configuration in which a full-height rib and a rib extending to the intermediate position are appropriately combined.

(b) Furthermore, in the above embodiment, the first end rib 42 of the central column 4 is connected to the surrounding wall 32, but the first wall 25 or the second wall 26, or may be connected to another first end rib 42 (via the cross rib 31). In addition, in the above-described embodiment, the second end ribs 44 are provided in the lower portions of the middle post 3 and the corner post 2, but the second end ribs 44 may be omitted. . In addition, second end ribs 44 may be provided on the middle post 3 , the upper portion of the corner post 2 , and the upper and lower portions of the central post 4 .

(c) In the above-described embodiment, the connecting rib 41 is configured to connect the end of the inner first pillar inner inclined rib 38 and the end of the second pillar inner inclined rib 35. , may be configured to connect between the portions on the inner corner portion side rather than the end portion. Further, the second connecting rib 45 may be connected to a portion closer to the outer corner portion 36 than the end portion of the entrance-side first-column inner inclined rib 39 , or the second connecting rib 45 may be connected to the third-column inner inclined rib 37 . may be connected to the end opposite to the end connected to the peripheral wall portion 21 .

In addition, when the connecting rib 41 is connected to a portion of the inner side first column inner inclined rib 38 other than the end portion, a part of the inner side first column inner inclined rib 38 is also connected to the peripheral wall portion 21 . Included in the continuous circumferential rib that continues in a substantially annular shape on the inner side, the second connecting rib is connected to portions other than the ends of the entrance-side first column inner inclined rib and the third column inner inclined rib In some cases, the entrance-side first pillar inner inclined rib and part of the third pillar inner inclined rib are also included in the continuous circumferential rib. Also, the second connecting rib 45 may be configured to be connected to the end portion of the third column inner inclined rib 37 .

(d) In the above embodiment, the upper constituent portion 12 and the lower constituent portion 13 are configured to have different shapes, etc. However, the upper constituent portion 12 and the lower constituent portion 13 have the same shape and the same size. It may be embodied in a smaller pallet (double-sided use type pallet). Furthermore, for example, it is possible to omit the lower deck portion 6 and embody a pallet integrally formed as a whole. In addition, in the above-described embodiment, the mounting surface 10 is basically non-porous (other than the tag housing portion 27), but for example, the upper deck portion 5 may be provided with an opening as appropriate. You may Further, for example, when each pillar opens upward and pallets are stacked, the pillar of the upper pallet (configured so that the outer dimension gradually decreases toward the bottom) becomes the lower pallet. It is also possible to embody a type (nesting type) pallet that is inserted inside the pillar of the pallet (Even when this configuration is adopted, whether or not the upper deck 5 has an opening may be determined as appropriate. can be designed). Also, in the above embodiment, the pallet 1 is made of polypropylene, but it may be made of other resin materials such as polyethylene, PET, and polyamide.

DESCRIPTION OF SYMBOLS 1... Pallet, 2... Corner post part, 3... Intermediate post part, 4... Central post part, 5... Upper deck part, 6... Lower deck part, 7... Fork insertion part, 8... First fork insertion path, 9... Second fork insertion path 21 Peripheral wall portion 24 Outward wall portion 25 First wall portion 26 Second wall portion 31 Cross rib 33 First column inner inclined rib 34 Inside corner portion , 35... second column inner inclined rib, 36... outer corner portion, 37... third column inner inclined rib, 38... inner side first column inner inclined rib, 39... entrance side first column inner inclined rib, 41... Connection rib 42... First end rib 43... Entrance side first end rib 44... Second end rib 45... Second connection rib 46... Third connection rib 48... Corner corresponding part.

Claims (7)

A fork inserting portion comprising a plurality of pillars and an upper deck portion connecting upper end portions between the plurality of pillars, wherein a fork of a transportation means having a fork can be inserted between the plurality of pillars. is formed, and in a pallet having a substantially rectangular shape in plan view,
The pillars include corner pillars provided at four corners of the pallet, an intermediate pillar provided at an intermediate portion between the pair of corner pillars arranged along each side of the pallet, and the center of the pallet. and a central pillar provided in the part,
The fork insertion portion includes a first fork insertion path extending through the pallet in a direction substantially orthogonal to a predetermined side portion of the pallet, and a first fork insertion path substantially extending from the first fork insertion path. a second fork insertion path extending through the pallet in an orthogonal direction;
Each of the pillars includes a peripheral wall that forms an outer peripheral surface of the pillar,
The peripheral wall portion is connected to the upper deck portion and forms an inner side surface of the first fork insertion path, and is connected to the upper deck portion to form an inner side surface of the second fork insertion path. and a second wall portion for
Each of the pillars
first column inner inclination extending from the first wall portion and the second wall portion toward the central portion side of the column portion with respect to the first wall portion and the second wall portion, respectively; ribs and
a second column inner inclined rib extending from an inner corner portion where the first wall portion and the second wall portion are connected toward a central portion side of the column portion;
A pallet characterized by comprising, as said first column inner inclined rib, an inner side first column inner inclined rib extending at an angle to a side away from each of said inner corner portions. 2. The pallet according to claim 1, further comprising a connecting rib that connects between the inner first column inclined rib and the second inner column inclined rib. A first end rib connected to the end of the inner first column inner inclined rib is provided,
Of the first end ribs of the corner pillar, the end opposite to the end connected to the inner first pillar inner inclined rib is formed by the first wall and the second wall. directly or indirectly connected to at least one of the parts,
Of the first end ribs of the intermediate pillar and the central pillar, the end opposite to the end connected to the inner first pillar inner inclined rib is the first wall , the second wall portion, and the other first end ribs provided on the same column portion are directly or indirectly connected to at least one of the A pallet according to claim 2. At least one of the intermediate column portion and the central column portion includes a substantially cross-shaped cross rib having an end connected to the peripheral wall portion, and at least one of the ribs constituting the cross rib is , the inner first pillar inner slanted rib, the second pillar inner slanted rib, the connecting rib, and the first end rib are provided at symmetrical positions. palette. The peripheral wall portion of the corner post portion and the intermediate post portion includes an outward wall portion that constitutes the outer peripheral surface of the pallet,
The corner post portion and the intermediate post portion extend from the outer corner portion where the outward wall portion is connected to the first wall portion or the second wall portion forming the entrance of the fork insertion portion. Equipped with a third pillar inner inclined rib extending toward the central part side of the pillar part,
The corner post portion and the intermediate post portion are provided on the entrance side of the fork insertion portion as inclined ribs inside the first post, and are inclined toward the side away from the outer corner portion. Equipped with sloping ribs in the pillars,
an entrance-side first end rib connected to an end of the entrance-side first column inner inclined rib is provided,
an end of the entrance-side first end rib opposite to the end connected to the entrance-side first column inner inclined rib is connected to the first end rib;
The corner post portion and the intermediate post portion are
a second connecting rib that connects between the third column inner inclined rib and the inlet side first column inner inclined rib;
a third connecting rib that connects between the third column inner inclined ribs provided on the same column portion,
The connecting rib, the first end rib, the inlet-side first end rib, the second connecting rib, and the third connecting rib form a continuous circumference that continues in a substantially annular shape on the inner side of the peripheral wall portion. 5. A pallet according to claim 3 or 4, characterized in that it is configured with ribs. Regarding at least one of the intermediate column and the central column,
The first end rib is provided so as to extend on an extension line of the inner side first column inner inclined rib,
a second end rib connected to the end of the second column inner inclined rib and extending on an extension line of the second column inner inclined rib;
The first end rib and the second end rib are connected to the other first end rib and the second end rib provided on the same column. A pallet as claimed in any one of claims 3 to 5. A portion of the peripheral wall portion of the intermediate pillar portion that is sandwiched between the inner first pillar inner inclined ribs that are provided in pairs across the second pillar inner inclined ribs corresponding to the inner corner portions. 7. The pallet according to any one of claims 1 to 6, wherein a corner corresponding portion is configured to be thicker than a portion adjacent to the corner corresponding portion.

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