JP6129550B2 - Integrated two-way pallet - Google Patents

Description

  The present invention has an upper deck board and a lower deck board, and the upper deck board and the lower deck board are connected by a pair of side girders and an intermediate girder positioned between the pair of side girders. In addition, the lower deck board includes a lower end beam that connects the both ends of the side beam and the both ends of the intermediate beam, and a lower center beam that connects the center portion of the side beam and the middle portion of the intermediate beam. In addition, the lower deck board is formed with four openings surrounded by side girders, intermediate girders, lower end bars, and lower central bars, and the upper deck board is also formed. Further, the present invention relates to an integrally formed two-way pallet in which a fork insertion hole surrounded by a lower deck board, a pair of side girders and an intermediate girder is formed.

  As shown in FIG. 5, the integrally formed two-way pallet having the above-described configuration includes a fixed mold m1, a movable mold m2, and a pair of slide cores m3 with which the front end surfaces abut, It is integrally formed by a mold member M comprising an inclined block m4 incorporated in the movable mold m2. An integrally formed two-way pallet P ′ including the upper deck board p1 ′, the lower end bar p2 ′, the lower center bar p3 ′, the fork insertion hole p4 ′, and the like is formed by the mold member M as described above. become.

  As shown in FIG. 6, a side beam P <b> 1 ′ and an intermediate beam P <b> 2 ′ are formed on the integrally formed two-way pallet P ′ formed by the mold member M described above, An opening p5 ′ surrounded by the part beam P1 ′, the intermediate beam P2 ′, the lower end bar p2 ′, and the lower center bar p3 ′ is formed.

  In the integrally formed two-way pallet P ′ as described above, a substantially perpendicular corner is formed between the lower end crosspiece p2 ′ and the side wall p6 ′ on the side of the fork insertion hole p4 ′ of the side beam P1 ′. In addition, a substantially perpendicular corner is also formed between the lower central beam p3 ′ and the side wall p7 ′ on the fork insertion hole p4 ′ side of the intermediate beam P2 ′.

  The integrally molded two-way pallet as described above is disclosed in Patent Document 1 as an example.

JP-A-8-34438

  As described above, in the integrally formed two-way pallet P ′, a substantially perpendicular corner is formed between the lower end bar p2 ′ and the side wall p6 ′ on the side of the fork insertion hole p4 ′ of the side beam P1 ′. In addition, when a substantially right-angled corner is formed between the lower central beam p3 ′ and the side wall p7 ′ on the fork insertion hole p4 ′ of the intermediate beam P2 ′, such a substantially right-angled corner is formed. Therefore, there is a problem that the bending strength of the lower end crosspiece p2 ′ and the lower central crosspiece p3 ′ is lowered, and the strength and rigidity of the integrally formed two-way pallet P ′ are lowered. .

  In addition, by forming a rounded corner at the lower end corner of the slide core m3, between the lower end crosspiece p2 ′ and the side wall p6 ′ on the side of the fork insertion hole p4 ′ of the side beam P1 ′, the lower center A thick portion is formed between the crosspiece p3 ′ and the side wall p7 ′ on the fork insertion hole p4 ′ side of the intermediate beam P2 ′ to improve the bending strength of the lower end crosspiece p2 ′ and the lower central crosspiece p3 ′. However, when such a thick portion is formed, the lower end crosspiece p2 ′, the lower central crosspiece p3 ′, etc. are deformed by the shrinkage in the cooling process after the molding of the integrally formed two-way pallet P ′, and the lower part There was a problem that the bending strength of the end crosspiece p2 ′ and the lower central crosspiece p3 ′ was lowered, and consequently the strength and rigidity of the integrally formed two-way pallet P ′ were lowered.

  An object of the present invention is to solve the problems of the above-described conventional integrally molded two-way pallet.

The present invention, in order to achieve the above object, the first, the
A pair of side girders;
A middle digit and
A lower end crosspiece connecting the side girders and both ends of the intermediate girders;
A lower central beam connecting the side beam and the middle portion of the intermediate beam;
An integrally molded two-way pallet with
The side girder includes a side girder inner wall extending substantially vertically, and a lower end portion of an inner wall that is positioned closer to the fork insertion hole than the side girder inner wall and to which the lower end crosspiece is connected ,
Forming an inclined reinforcing portion between the side wall inner wall and the lower end of the inner wall, and forming the inclined reinforcing portion over the entire length of the inner wall of the side beam located on the fork insertion hole side;
The intermediate girder includes an intermediate girder wall that extends substantially vertically, and a middle wall lower end that is positioned closer to the fork insertion hole than the intermediate girder wall and to which the lower central beam is connected ,
An inclined reinforcing portion is formed between the intermediate girder wall and the lower end portion of the intermediate girder wall, and the inclined reinforcing portion is formed over the entire length of the intermediate girder wall located on the fork insertion hole side. Yes,
The second, on the side in the digit, to form a fork insertion hole side reinforcing piece extending perpendicularly substantially continuously connected to the side spar interior wall, wherein the intermediate girder inside, connected substantially perpendicular to the intermediate girder wall An intermediate girder reinforcing piece extending in the direction is formed.

  In the integrally formed two-way pallet, an inclined reinforcing portion is formed between the side wall inner wall and the inner wall lower end located on the fork insertion hole side from the side wall inner wall, and the intermediate beam wall, Since the inclined reinforcing part is formed between the intermediate girder wall and the lower end part located on the fork insertion hole side, the side girder and the intermediate girder, and the lower end crosspiece connecting the side girder and the intermediate girder, The strength of the connecting portion with the lower central beam can be increased, and consequently the bending strength of the lower end beam and the lower central beam can be improved, and therefore the strength and rigidity of the integrally formed two-way pallet can be increased.

  Since the fork insertion hole side reinforcing piece is formed in the side girder and the intermediate girder reinforcing piece is formed in the intermediate girder, the strength and rigidity of the side girder and the intermediate girder can be increased.

FIG. 1 is a perspective view from above of an integrally molded two-way pallet according to the present invention. FIG. 2 is a perspective view from the bottom of the integrally molded two-way pallet of the present invention. FIG. 3 is a partially enlarged perspective view including a partial vertical section of the integrally molded two-way pallet of the present invention. FIG. 4 is an enlarged perspective view including a horizontal section of the integrally molded two-way pallet of the present invention. FIG. 5 is a vertical sectional view along a slide core of a known mold member for molding a conventional one-piece two-way pallet. FIG. 6 is a partially enlarged perspective view including a partial vertical cross section of a conventional integrally molded two-way pallet.

  Hereinafter, examples of the present invention will be described. However, the present invention is not limited to these examples as long as the gist of the present invention is not exceeded.

  First, an integrally formed two-way pallet will be described with reference to FIGS. 1 and 2.

  As is well known, the integrally formed two-way pallet P includes an upper deck board p1, a lower deck board p2, a pair of side girders P1 connecting the upper deck board p1 and the lower deck board p2, and an upper deck board. It is composed of a single intermediate beam P2 that connects p1 and the lower deck board p2. The upper deck board p1 on which the luggage is placed has a lattice structure, and the lower deck board p2 includes a lower end crosspiece p2a that connects both ends of the side girder P1 and the intermediate girder P2, and It is formed by the lower center crosspiece p2b which connects the side part girder P1 and the middle part of the intermediate girder P2. Furthermore, four openings p3 surrounded by the side beam P1, the intermediate beam P2, the lower end beam p2a, and the lower center beam p2b are formed in the lower deck board p2. Further, the integrally formed two-way pallet P is formed with a fork insertion hole p4 surrounded by an upper deck board p1, a lower deck board p2, a pair of side girders P1 and a single intermediate girder P2. .

  Next, specific features of the present invention will be described with reference to FIGS.

  The side girder P1 includes a side girder outer wall p10 located on the opposite side of the fork insertion hole p4 along the fork insertion hole p4, and a side girder located on the fork insertion hole p4 side along the fork insertion hole p4. An appropriate number of side girder inner intermediate walls p12 (this book) formed between the inner wall p11, the side girder outer wall p10 and the side girder inner wall p11 and substantially parallel to the side girder outer wall p10 and the side girder inner wall p11. In the embodiment, two side girder inner intermediate walls are formed.). Further, the side girder outer wall p10, the side girder inner wall p11, and the side girder inner wall p12 are located in the side girder P1, and a known upper deck board p1a that forms the upper deck board p1 and the lower deck. A known lower deck board crosspiece p2c forming the board p2 is connected.

  The intermediate beam P2 is formed between the opposed intermediate beam wall p20 and the opposed intermediate beam wall p20 along the fork insertion hole p4, and an intermediate wall p21 in the intermediate beam (in the present embodiment, two intermediate beams). An intermediate wall in the beam is formed). Further, the intermediate girder wall p20 and the intermediate girder inner middle wall p21 are located in the intermediate girder P2 and are a known upper deck board bar p1a that forms the upper deck board p1 and a known lower deck that forms the lower deck board p2. It is comprised so that board crosspiece p2c may be connected.

  The side girder P1 is connected to the side girder inner wall p11 and is connected to the upper deck board bar p1a and the lower deck board bar p2c and is substantially perpendicular to the side girder inner wall p11. A reinforcing piece p13 is formed. In the side girder P1, the side girder is connected to the side girder outer wall p10 and is connected to the upper deck board bar p1a and the lower deck board bar p2c and is substantially perpendicular to the side girder outer wall p10. A girder outer wall side reinforcing piece p14 is formed.

  As described above, the strength and rigidity of the side beam P1 can be increased by forming the fork insertion hole side reinforcing piece p13 and the side beam outer wall side reinforcing piece p14 in the side beam P1.

  Similarly, in the intermediate beam P2, an intermediate beam connected to the opposite intermediate beam wall p20 and connected to the upper deck board bar p1a and the lower deck board bar p2c and substantially perpendicular to the intermediate beam wall p20. A reinforcing piece p15 is formed.

  As described above, the strength and rigidity of the intermediate beam P2 can be increased by forming the intermediate beam reinforcement piece p15 in the intermediate beam P2.

  The corner formed by the side girder inner wall p11 and the lower end crosspiece p2a of the side girder P1 and the corner formed by the side girder inner wall p11 and the lower central crosspiece p2b of the side girder P1 By deforming the lower end portion of the side girder inner wall p11 along the side girder inner wall p11 to the fork insertion hole p4 side in a straight line or a curved shape, An inclined reinforcement part p30 of the inner wall p11 of the part beam is formed. The inclined reinforcing portion p30 is formed between a substantially vertical side girder inner wall p11 and a substantially vertical inner wall lower end p11a located on the fork insertion hole p4 side from the side girder inner wall p11. The thicknesses of the inner wall p11, the inner wall lower end p11a, and the inclined reinforcing part p30 are formed uniformly. Moreover, such an inclination reinforcement part p30 is formed over the full length of the side part inner wall p11 of the side part beam P1 located in the fork insertion hole p4 side. Thus, by forming the fork insertion hole side reinforcing piece p13, the inclined reinforcing portion p30 and the inner wall lower end portion p11a of the side beam inner wall p11 can be reinforced.

  Similarly, the corner formed by the intermediate beam wall p20 of the intermediate beam P2 and the lower end beam p2a and the corner formed by the intermediate beam wall p20 of the intermediate beam P2 and the lower central beam p2b are also provided. By deforming the lower end portion of the intermediate girder wall p20 along the intermediate girder wall p20 toward the fork insertion hole p4 in a linear or curved shape, the lower end portion of the intermediate girder wall p20 An inclined reinforcing portion p31 is formed. The inclined reinforcing portion p31 is formed between the substantially vertical intermediate girder wall p20 and the lower end portion p20a of the substantially vertical intermediate girder wall 20 located on the fork insertion hole p4 side from the intermediate girder wall p20. The wall thickness of the intermediate girder wall p20, the lower end part p20a of the intermediate girder wall 20, and the inclined reinforcing part p31 is formed uniformly. Further, such an inclined reinforcing portion p31 is formed over the entire length of the intermediate beam wall p20 of the intermediate beam P2 located on the fork insertion hole p4 side. Thus, by forming the intermediate beam reinforcing piece p15, the inclined reinforcing portion p30 and the lower end portion p20a of the intermediate beam wall 20 can be reinforced.

  As described above, the inclined reinforcing portion p30 is formed between the substantially vertical side girder inner wall p11 and the substantially vertical inner wall lower end p11a located on the fork insertion hole p4 side from the side girder inner wall p11. In addition, by forming the inclined reinforcing part p31 between the substantially vertical intermediate girder wall p20 and the substantially vertical lower end part p20a located on the fork insertion hole p4 side from the intermediate girder wall p20, The strength of the connecting portion between the lower end beam p2a and the lower central beam p2b that connects the side beam P1 and the intermediate beam P2 and the side beam P1 and the intermediate beam P2 can be increased. The bending strength of p2a and lower center crosspiece p2b is improved, and therefore the strength and rigidity of the integrally formed two-way pallet P can be increased.

P ··········································································································· ······································································································································ p3 ... Opening p4 ... Fork insertion hole p13 ... Fork insertion hole side reinforcing piece p14 ... ... Reinforcement piece on the side wall outer wall side p15 ············ Intermediate girder reinforcement piece p30, p31 ... Inclined reinforcement part

Claims (2)

A pair of side girders;
A middle digit and
A lower end crosspiece connecting the side girders and both ends of the intermediate girders;
A lower central beam connecting the side beam and the middle portion of the intermediate beam;
An integrally molded two-way pallet with
The side girder includes a side girder inner wall extending substantially vertically, and a lower end portion of an inner wall that is positioned closer to the fork insertion hole than the side girder inner wall and to which the lower end crosspiece is connected ,
Forming an inclined reinforcing portion between the side wall inner wall and the lower end of the inner wall, and forming the inclined reinforcing portion over the entire length of the inner wall of the side beam located on the fork insertion hole side;
The intermediate girder includes an intermediate girder wall that extends substantially vertically, and a middle wall lower end that is positioned closer to the fork insertion hole than the intermediate girder wall and to which the lower central beam is connected ,
An inclined reinforcing part is formed between the intermediate girder wall and the lower end part of the intermediate girder wall, and the inclined reinforcing part is formed over the entire length of the intermediate girder wall located on the fork insertion hole side. One-piece two-way pallet featuring On the side in the digits, the to form a side girder and connected to the inner wall fork insertion hole side reinforcing piece extending substantially vertically, wherein the intermediate girder in the middle and connected to the digit wall intermediate girder reinforcement extending substantially vertically The integrally formed two-way pallet according to claim 1, wherein a piece is formed.

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