JP4259932B2 - Plastic pallet - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a synthetic resin pallet formed integrally with a synthetic resin used for transporting, transporting, and storing articles.
[0002]
[Prior art]
As a synthetic resin pallet, a synthetic resin pallet is known in which at least a part of an upper deck is constituted by vertical ribs having a substantially T-shaped cross section (Japanese Patent Laid-Open No. 8-324567, etc.).
[0003]
[Problems to be solved by the invention]
An upper deck having a mixture of narrow and wide vertical ribs adjacent to each other has been known in the past. If the distance between adjacent vertical ribs is wide, There is a problem that the article to be placed may be damaged by biting between the vertical ribs, or the strength and rigidity of the upper deck may be reduced.
[0004]
An object of the present invention is to solve the problems of the above-described conventional synthetic resin pallet.
[0005]
[Means for Solving the Problems]
The present invention, in order to achieve the above object, an intermediate which is located the upper deck, a lower deck, and connecting the lower deck and the upper deck, in a central portion of the opposite side girder and the side portion of digits A synthetic resin pallet in which an opening surrounded by the side girder, the intermediate girder, a fork insertion port side coupling beam portion, and a central portion coupling beam portion is formed in the lower deck In the above , a pair of substantially inverted U-shaped anti-slip tape application upper rails are arranged above the opening with a predetermined interval, and between the pair of anti-slip tape application upper rails A plurality of vertical ribs formed in a substantially T shape from the vertical portion and the horizontal portion are arranged, and are adjacent to the hanging portion and the anti-slip tape attaching upper crosspiece constituting the anti-slip tape attaching upper crosspiece. The spacing between the vertical parts constituting the vertical ribs The interval between the vertical portions constituting the adjacent vertical ribs located in the central portion is configured wider than the interval between the vertical portions constituting the other adjacent vertical ribs located above the opening, and The horizontal top part that constitutes the upper rail for attaching the anti-slip tape and the horizontal part that constitutes the vertical rib adjacent to the upper rail for attaching the anti-slip tape are extended in a direction approaching each other, and adjacent to the central part. The horizontal part which comprises the said perpendicular | vertical rib is extended in the direction which mutually approaches .
[0006]
【Example】
Examples of the present invention will be described below. However, the present invention is not limited to these examples as long as the gist of the present invention is not exceeded.
[0007]
First, the overall configuration of a synthetic resin pallet integrally formed with the synthetic resin of this embodiment will be described with reference to FIGS.
[0008]
The synthetic resin pallet has an upper deck 1 and a lower deck 2, and one opposing side portion of the upper deck 1 and the lower deck 2 is connected by a side beam S 1 having a substantially rectangular tube shape. Further, the central portions of the upper deck 1 and the lower deck 2 are connected by a substantially square cylindrical intermediate beam S2 that is substantially parallel to the side beam S1 and has the same length as the side beam S1. A fork insertion hole 3 into which a fork such as a hand forklift can be inserted is formed between the side beam S1 and the intermediate beam S2. Thus, in this embodiment, a so-called two-piece synthetic resin pallet in which two fork insertion holes 3 are formed only on one opposite side portion is shown. The lower deck board 2 positioned below the fork insertion hole 3 is formed with two substantially rectangular openings 4 having a size that allows the wheels of the hand forklift to pass therethrough at a predetermined interval. ing. Therefore, a total of four openings 4 are formed in the lower deck board 2.
[0009]
As described above, since the opening 4 is formed in the lower deck board 2, both longitudinal ends of the side beam S <b> 1 and both longitudinal ends of the intermediate beam S <b> 2 constitute a part of the lower deck board 2. Are connected by a fork insertion port side connecting beam portion 5, and the central portion of the side beam S 1 and the central portion of the intermediate beam S 2 are also formed as part of the lower deck board 2. 6 are connected.
[0010]
Next, with reference to FIGS. 1 to 5, the substantially square tubular side beam S <b> 1 and the substantially rectangular tube shaped intermediate beam S <b> 2 will be described. The side girder S1 and the intermediate girder S2 will be described using S1. In the following, the term “digit” is used as the side digit S1 and the intermediate digit S2, and the symbol S is used.
[0011]
The substantially rectangular cylindrical girder S has a peripheral wall s1 composed of an opposing long wall s1a and an opposing short wall s1b. The upper end portions of the opposing long walls s1a are connected by a substantially inverted U-shaped upper girder upper beam Ca arranged in the horizontal direction at a predetermined interval, and the lower ends of the opposing long walls s1a are connected at a predetermined interval. Are connected by a substantially U-shaped lower crosspiece Cb arranged in a horizontal direction. As shown in FIG. 4 and the like, the substantially inverted U-shaped girder upper crosspiece Ca is suspended from the horizontal ceiling c1 and the opposite edges of the horizontal ceiling c1 substantially vertically downward. The horizontal top part c1 forms the article placement surface 1a of the upper deck 1. Similarly, the substantially U-shaped girder lower bar Cb includes a horizontal bottom part c3 and a standing part c4 that extends substantially vertically upward from opposite edges of the horizontal bottom part c3. The bottom c3 forms a bottom surface 2a where the lower deck 2 comes into contact with the floor or the like. In addition, each girder upper bar Ca is configured so as to be positioned between adjacent lower girder lower bars Cb in plan view. In the present embodiment, an example is shown in which 12 upper beams in the girders Ca and 13 lower beams in the girders 13 are arranged.
[0012]
An upper end crosspiece Cc in the girder substantially parallel to the upper crosspiece Ca in the girder is formed at the upper end portion of the short wall s1b facing the substantially square cylindrical girder S. From the upper end of the opposed short wall s1b of the spar S, from the horizontal end c5 extending in the center part direction of the spar S, and the hanging part c6 extending downward substantially vertically from the edge of the horizontal end c5 It is configured. The horizontal end c5 of the upper end crosspiece Cc in the girder is formed flush with the horizontal top c1 of the upper crosspiece Ca in the girder, and the horizontal end c5 of the upper end crosspiece Cc in the girder is also an upper part. The article placement surface 1a of the deck 1 is formed.
[0013]
Further, in the present embodiment, of the upper girder upper bars Ca, two upper girder bars in the center (hereinafter referred to as wide upper girder upper bars and the symbol Ca ′ is used) Ca ′. C1 ′ is the width of the horizontal crest c1 that constitutes the other upper girder Ca, as shown in FIG. 3 and FIG. It is formed wider than (the length along the long wall s1a of the girder S), and in this embodiment, it is formed with a width approximately twice as large. In the center of the rear surface of the horizontal top c1 ′ of the wide beam upper bar Ca ′, it is lower than the hanging part c2 along the short wall s1b of the beam S, in other words, substantially perpendicular to the long wall s1a of the beam S. The rib c7 is suspended. By forming such a rib c7, it is possible to improve the strength and rigidity of the wide girder upper bar Ca 'by forming the horizontal top part c1' to be wide. In this way, by forming the wide girder upper crosspiece Ca ′, the contact area with the article placed on the article placement surface 1a of the upper deck 1 can be increased. Can be prevented.
[0014]
Furthermore, a hanging part c2 that forms an appropriate upper girder in the girder S arranged in the girder S and a lower girder in the girder Cb that is positioned below the upper girder in the girder Ca and on the short wall s1b side are formed. The standing portion c4 is connected by a partition wall c8, and the inside of the beam S is partitioned into a plurality of independent spaces by the partition wall c8 along the long wall s1a. In this embodiment, of the hanging parts c2 of the two wide girder upper bars Ca ′, the hanging part c2 located on the short wall s1b side and the two wide girder upper bars Ca ′ are located below. At the same time, an upright portion c4 near the center of the lower girder in the girder Cb located on the short wall s1b side is connected by a partition wall c8, and the upper girder in the girder located second from the short wall s1b. A hanging part c2 located on the short wall s1b side of Ca and a lower part crosspiece Cb in the girder located on the short wall s1b side and below the upper girder in the girder s1b (girder located second from the short wall s1b) The inner and lower crosspieces Cb) are connected to a standing portion c4 closer to the center by a partition wall c8. Therefore, in this embodiment, the beam S is divided into five independent spaces by the four partition walls c8.
[0015]
In the wide girder upper bar Ca 'and the upper girder upper bar Ca, connecting ribs c9 that connect the opposite hanging parts c2 and are substantially parallel to the long wall s1a of the girder S are formed at predetermined intervals. Similarly, connecting ribs c10 that are substantially parallel to the long wall s1a of the beam S and that connect the upright portions c4 that are opposed to each other are formed at predetermined intervals in the lower beam Cb in the beam. The wide girder upper crosspiece Ca ′ and the connecting rib c9 formed in the girder upper crosspiece Ca are preferably configured not to extend downward beyond the hanging part c2, and in the girder lower crosspiece Cb. It is preferable that the connecting rib c <b> 10 formed inside is also configured not to extend upward beyond the standing portion c <b> 4. By forming such connecting ribs c9 and c10, it is possible to increase the strength and rigidity of the wide girder upper beam Ca ', the inner girder upper beam Ca, and the lower girder beam Cb.
[0016]
In the present embodiment, as shown in FIG. 2, the partition wall 7 and the short wall s1b that are substantially parallel to the long wall s1a of the side beam S1 are provided near the outer corner s2 of the side beam S1. A corner section chamber 9 is formed which is partitioned by a substantially parallel partition wall 8, and the corner section chamber 9 is further partitioned into two sub-compartments by a partition wall 10 which is substantially parallel to the short wall s1b. Yes. Further, the sub compartment 9 ′ located at the outer corner s2 is further divided into two compartments by a diagonal partition wall 11 including the outer corner s2. By forming such compartments, subcompartments, diagonal partition walls 11 and the like, the strength and rigidity of the corners of the synthetic resin pallet can be increased. When the partition wall 7 substantially parallel to the long wall s1a as described above is formed, about one or two in-girder upper beams Ca and lower beams in the beam are located on the short wall s1b side of the side beam S1. Instead of being connected to the long wall s1a located outside, it is connected to the partition wall 7 substantially parallel to the long wall s1a.
[0017]
Next, with reference to FIG. 1, FIG. 3, FIG. 6, FIG. 7, etc., the out-of-girder upper crosspiece Ce that is located between the side beam S1 and the intermediate beam S2 forming the upper deck 1 will be described. .
[0018]
The upper beam in the girder located next to the upper beam beam Ca 'in the second beam and the two wide beam beams in the upper beam beam Ca' located second from the short wall s1b facing the beam S (the side beam G1 and the intermediate beam S2). The total four upper beams Ca in Ca all extend beyond the side beam S1 and the intermediate beam S2, and constitute the outer beam beam Ce1 as the upper beam beam Ce1. Yes. The outer cross beam Ce1 has a substantially inverted U-shaped cross-section that is the same as the inner cross beam Ca. That is, the outer cross beam Ce1 is also composed of a horizontal top part c1 and a hanging part c2 extending substantially vertically downward from opposite edges of the horizontal top part c1 in the same manner as the upper cross beam Ca. ing. In this way, the upper part in the four girders in total, that is, the upper girder in the spar that is located next to the upper girder in the spar Ca that is second from the opposing short wall s1b and the two wide girder upper girder Ca '. The long wall s1a of the side girder S1 and the intermediate girder S2 from the substantially end to the end of the upper deck 1 by the crosspiece Ca and the overgirder upper crosspiece Ce1 continuously connected to these four upper girder upper crosspieces Ca. On the other hand, a total of four upper crosspieces Ct for attaching an anti-slip tape that extend in a straight line substantially perpendicularly are formed.
[0019]
On the upper surface of the horizontal top part c1 of the above-described anti-slip tape-attached upper bar Ct, a concave is formed in the length direction of the anti-slip tape-attached upper bar Ct (perpendicular to the long wall s1a of the side girder S1 and intermediate girder S2). A groove c1a is formed. An anti-slip tape T is adhered to the concave groove c1a. The anti-slip tape T can be attached using an adhesive or can be attached by welding, and an appropriate means can be adopted as appropriate. As a matter of course, the upper surface of the anti-slip tape T adhered to the groove c1a protrudes from the groove c1a. In other words, the upper surface of the anti-slip tape T adhered to the groove c1a is located above the article placement surface 1a of the upper deck 1.
[0020]
On the back surface of the horizontal top part c1 of the upper crosspiece Ct to which the anti-slip tape is applied, reinforcing ribs are provided in the length direction of the anti-slip tape application upper crosspiece Ct (perpendicular to the long wall s1a of the side girder S1 and the intermediate girder S2). c11 is provided vertically. The reinforcing rib c11 is preferably suspended substantially in the middle of the opposed hanging part c2, and is suspended so as not to extend below the hanging part c2 beyond the hanging part c2. Of course, if necessary, a plurality of reinforcing ribs c11 can be suspended. The article is placed on the upper deck 1 by forming the reinforcing rib c11 on the back surface of the horizontal top part c1 of the upper crosspiece Ct on which the antiskid tape is attached, in which the concave groove c1a to which the antiskid tape T is attached is formed. In this case, first, the strength and rigidity of the anti-slip tape-attached upper crosspiece Ct on which the anti-slip tape T with which the article abuts is disposed can be increased. Therefore, the anti-slip tape-attached upper crosspiece Ct is curved downward. The area of the anti-slip tape T that deforms and contacts the lower surface of the article is reduced, the function of the anti-slip tape T for preventing the article from slipping on the upper deck 1 is impaired, or the anti-slip tape T is peeled off from the upper deck 1 The problem that the upper deck 1 is damaged can be solved.
[0021]
The horizontal top portion c1 of the anti-slip tape-attached upper crosspiece Ct to which the anti-slip tape T is attached is formed as a solid belt-like plate, and it is preferable that no through holes, recesses, grooves, or the like are formed. It is preferable that the upper surface of the concave groove c1a to which the anti-slip tape T is attached is flat and has no through holes, concave portions, grooves, or the like. Thus, by forming the upper surface of the concave groove c1a to which the anti-slip tape T is adhered flat, the adhesion area between the anti-slip tape T and the upper surface of the concave groove c1a is increased, and therefore the anti-slip tape T is peeled off. Can be reliably prevented, and the strength and rigidity of the upper crosspiece Ct to which the anti-slip tape is attached can be improved.
[0022]
As shown in FIG. 1, FIG. 3, FIG. 6, or FIG. 7, the anti-slip tape-attached upper crosspiece Ct having the above-described configuration is in the direction of fork insertion into the fork insertion hole 3 (the length of the fork insertion hole 3 Four directions are formed substantially perpendicular to (direction), in other words, along the short wall s1b of the side beam S1 and the intermediate beam S2 (substantially perpendicular to the long wall s1a). In particular, as is apparent from FIG. 7, of these four anti-slip tape-attached upper bars Ct, two of the side beams S1 and the intermediate beam S2 located on the short wall s1b side are the side beams S1. Is located above the opening 4 surrounded by the intermediate beam S2, the fork insertion port side connecting beam portion 5 and the central connecting beam portion 6 and in the vicinity of the fork insertion port side connecting beam portion 5, and the rest. These two are located above the opening 4 and in the vicinity of the central connecting bar 6. That is, the upper crosspiece Ct to which the anti-slip tape is attached is not disposed on the upper deck 1 located above the fork insertion port side connection crosspiece 5. Thus, the anti-slip tape T attached to the anti-slip tape attaching upper crosspiece Ct is not disposed near the edge of the upper deck 1 like the conventional synthetic resin pallet. Since it is arranged in the upper part and in the vicinity of the fork insertion port side connecting bar part 5 and the central part connecting bar part 6, it is possible to reliably and effectively slide the articles placed on the upper deck 1. Can be prevented.
[0023]
The upper girder upper end crosspiece Cc composed of the horizontal end c5 and the hanging part c6 also extends beyond the side girder S1 and the intermediate girder S2 and is used as the outer girder upper end crosspiece Ce2. Part Ce is configured. The upper end crosspiece Cc in the girder and the upper end crosspiece Ce2 outside the girder have the same cross-sectional shape, and the end of the upper deck 1 is formed by the upper end crosspiece Cc in the girder and the upper end crosspiece Ce2 outside the girder. From top to end, an upper end crosspiece Cd is formed that extends in a straight line substantially perpendicularly to the long wall s1a of the side girder S1 and the intermediate girder S2.
[0024]
The region of the upper crosspiece Ce outside the beam (fork insertion) surrounded by the upper end crosspiece Cd, the upper crosspiece Ct adhering to the anti-slip tape adjacent to the upper end crosspiece Cd, the side girder S1 and the intermediate girder S2. Vertical ribs a1 arranged at a predetermined interval between the upper end of the long wall s1a of the side girder S1 and the upper end of the long wall s1a of the intermediate girder S2 It is connected by. Two of the vertical ribs a1 are formed as extensions of the drooping portion c2 constituting the upper girder upper beam Ca adjacent to the upper end beam Cd, and are substantially integrated with the drooping portion c2. . Further, the hanging part c6 of the upper end bar Cd and the hanging part c2 of the anti-slip tape-fitting upper bar Ct facing the hanging part c6 are connected by vertical ribs a2 arranged at a predetermined interval. As described above, the extra-beam upper beam portion Ce located in the region A1 is formed in a cross rib structure by the vertical rib a1 substantially orthogonal to the long wall s1a and the vertical rib a2 substantially parallel to the long wall s1a. The vertical ribs a1 and a2 have a cross-sectional shape perpendicular to the longitudinal direction formed in a substantially inverted T shape, and the upper end forms an article placement surface 1a of the upper deck 1 and the vertical rib a1. The lower end of a2 substantially coincides with the lower end of the hanging part c2 of the upper girder upper bar Ca and the lower end of the hanging part c6 of the upper end bar Cd. In this way, the vertical rib a1 that is substantially orthogonal to the appropriate long wall s1a and the hanging portion c2 that constitutes the upper girder in the girder are integrally formed as a single continuous belt-like plate. Thereby, the intensity | strength and rigidity of an extra-beam upper crosspiece Ce can be improved.
[0025]
An upper anti-slip tape adhering upper cross Ct located next to the upper anti-slip tape adhering upper cross Ct adjacent to the upper end cross Cd, an anti-slip tape adhering upper cross Ct adjacent to the anti-slip tape adhering upper cross Ct, and the side The region of the upper cross beam portion Ce that is surrounded by the cross beam S1 and the intermediate beam S2 (enclosed by the side beam S1, the intermediate beam S2, the fork insertion port side connection beam portion 5, and the central connection beam portion 6). The upper end of the long wall s1a of the side girder S1 and the upper end of the long wall s1a of the intermediate girder S2 are connected by a vertical rib a3 arranged at a predetermined interval. The vertical rib a3 is formed as an extension of the hanging part c2 constituting the two upper girder upper bars Ca located between the above-mentioned anti-slip tape-attached upper bars Ct, and is substantially the same as the hanging part c2. Are integrally formed. Moreover, the vertical rib a3 formed as an extension part of the hanging part c2 of the upper crosspiece Ct to which the anti-slip tape is attached is connected by the vertical rib a4 arranged at a predetermined interval. In this manner, the extra-beam upper beam portion Ce located in the region A2 is formed in a crossed rib structure by the vertical rib a3 substantially orthogonal to the long wall s1a and the vertical rib a4 substantially parallel to the long wall s1a. The vertical ribs a3, a4 have a substantially T-shaped cross section perpendicular to the longitudinal direction, and the upper ends thereof form the article placement surface 1a of the upper deck 1, and the vertical ribs a3, The lower end of a4 substantially coincides with the lower end of the hanging part c2 of the upper crosspiece Ct to which the anti-slip tape is attached. In this way, by forming the vertical rib a3 substantially orthogonal to the long wall s1a and the hanging part c2 constituting the in-girder upper bar Ca as a continuous body, as if they were integrally formed as one flat belt-like plate. In addition, the strength and rigidity of the extra-beam upper crosspiece Ce can be improved.
[0026]
As shown in FIG. 7 and FIG. 9, the vertical portions a3a constituting the substantially T-shaped vertical ribs a3 that are disposed in the region A2 and that are substantially orthogonal to the long wall s1a are not equidistant. The distance d1 between the vertical portions a3a of the two adjacent vertical ribs a3 located in the central portion is perpendicular to the vertical portion a3a of the vertical rib a3 located in the central portion and the vertical rib a3 on the anti-slip tape-attached upper crosspiece Ct side. It is formed wider than the interval d2 with the part a3a. As described above, when the interval d1 between the vertical portions a3a constituting the adjacent substantially T-shaped vertical ribs a3 is wide, the horizontal portions a3b constituting the vertical ribs a3 are extended in a direction approaching each other. The interval d3 between the horizontal portions a3b of the vertical ribs a3 having a wide interval d1 is narrowed to be substantially the same as the interval d4 between the horizontal portions a3b of the vertical ribs a3 having a narrow interval d2. By configuring in this way, the strength and rigidity of the extra-beam upper beam portion Ce located in the region A2 is reduced due to the wide interval d1 between the vertical portions a3a constituting the adjacent substantially T-shaped vertical ribs a3. As a result, the strength and rigidity of the synthetic resin pallet are improved. In addition, when the interval d1 between the vertical portions a3a constituting the adjacent substantially T-shaped vertical ribs a3 is wide, the horizontal deck a3b constituting the vertical ribs a3 is extended in a direction approaching each other, so that the upper deck It is possible to increase the placement area of one article placement surface 1a, and therefore, it is possible to suppress biting of the placed article between the vertical ribs a3, and to prevent damage to the article.
[0027]
Further, when the vertical portion a3a constituting the hanging portion c2 of the upper crosspiece Ct and the substantially rib-shaped vertical rib a3 adjacent to the hanging portion c2 located in the region A2 is wide, the antislip tape is used. The horizontal top part c1 of the sticking upper bar Ct is extended to the vertical rib a3 side to be an extended edge c1b, and the horizontal part a3b of the vertical rib a3 facing the extended edge c1b is attached to the antiskid tape sticking upper bar Ct. Extending to the horizontal top part c1 side, the distance d5 between the horizontal edge part a3b of the extended edge c1b of the horizontal top part c1 of the upper crosspiece Ct of the anti-slip tape sticking upper part c1 and the vertical rib a3 facing the extended edge c1b, The distance is substantially the same as the distance d4 between the horizontal portions a3b of the vertical rib a3 having a narrow distance d2. By configuring in this way, it is possible to further suppress a decrease in strength and rigidity of the extra-girder upper crosspiece Ce located in the region A2, and as described above, the article placement surface 1a of the upper deck 1 The placement area can be increased, and therefore, the biting of the article to be placed between the vertical ribs a3 can be suppressed, and the article can be prevented from being damaged.
[0028]
An area of the upper cross beam Ce outside the girder surrounded by a pair of anti-slip tape adhering adjacent to the wide upper beam beam Ca ', the side beam S1, and the intermediate beam S2 (the central link beam) The upper end of the long wall s1a of the side girder S1 located at A3 and the upper end of the long wall s1a of the intermediate girder S2 are connected to each other by a substantially inverted U-shaped outer cross beam Ce3. Yes. Similarly to the above-described substantially inverted U-shaped intra-beam upper beam Ca3, the outer beam upper beam Ce3 also hangs downward substantially vertically from the horizontal top e1 and the opposite edge of the horizontal ceiling e1. Part e2. In the present embodiment, four extra-girder upper bars Ce3 are formed in the area A3, and the two lower outer-girder bars Ce3 arranged on the outer side are the hanging parts on the upper bar Ct side where the anti-slip tape is attached. e2 is formed as an extension of the hanging part c2 on the side of the anti-slip tape-attaching upper bar Ct that constitutes the two wide girder upper bars Ca 'located between the anti-slip tape-attaching upper bars Ct. Therefore, the hanging part e2 on the upper crosspiece Ct side of the upper crosspiece Ce3 where the anti-slip tape is attached and the hanging part c2 on the upper crosspiece Ct side of the wide upper crosspiece Ca 'are substantially integrated. It is configured as. Further, the opposite hanging portions e2 of the two outer girder upper bars Ce3 arranged on the inner side constitute two wide girder upper bars Ca 'located between the upper bars Ct to which the anti-slip tape is attached. Is formed as an extension of the opposite drooping portion c2, and therefore the two opposite outside girder upper frames Ce3 arranged on the inner side and the two wide inner girder upper beams Ca ' Are substantially integrated with each other. In this way, the appropriate hanging part e2 of the outer cross beam upper bar Ce3 and the appropriate hanging part c2 of the wide inner beam upper beam Ca 'are integrated as a single continuous belt-like plate. By forming in, it is possible to improve the strength and rigidity of the extra-beam upper crosspiece Ce.
[0029]
By the way, as described above, a hanging part c2 forming an appropriate upper crosspiece Ca in the girder (side girder S1, intermediate girder S2) S, and below the upper crosspiece Ca in the girder, and The upright portion c4 that forms the lower girder in the girder Cb located on the short wall s1b side is connected by a partition wall c8, and the inside of the girder S is separated by a plurality of partition walls c8 along the long wall s1a. It is partitioned into independent spaces.
[0030]
As described above and as shown in FIG. 4 and FIG. 5, the upper crosspiece Ca and the wide rail in the predetermined girder located in the girder S and having a substantially inverted U-shaped cross section perpendicular to the longitudinal direction. One hanging part c2 that forms the upper crosspiece Ca 'and the upper crosspiece Ct on which the antiskid tape is attached, and the lower part of the upper crosspiece Ct on which the antiskid tape is attached that constitutes the outer crosspiece Ce that is located outside the girder S c2 and one hanging part e2 of the outer girder upper crosspiece Ce3 are continuous and formed integrally as one flat belt-like plate. The strength and rigidity of the upper crosspiece Ce can be increased, and as a result, the strength and rigidity of the upper deck 1 of the synthetic resin pallet is improved. Thus, one sheet of the hanging part c2 such as the anti-slip tape attaching upper bar Ct located in the beam S and the one hanging part c2 such as the anti-slip tape attaching upper bar Ct located outside the beam S. In order to maintain continuity as a flat belt-like plate, the partition wall c8 connected to the hanging portion c2 is provided inside and outside the girder S maintaining continuity as a single flat belt-like plate. There is no stepped portion or the like at the connecting portion between the hanging portion c2 and the hanging portion c2 and the partition wall c8, and it is connected as if it were a flat single plate. By comprising in this way, the intensity | strength and rigidity of the upper deck 1 in which articles | goods are mounted and a big load is applied can be improved.
[0031]
As described above, when the hanging wall c2 located inside and outside the beam S and the partition wall c8 connected like a flat single plate are extended downward as they are, the lower end of the partition wall c8 is The cross-sectional shape perpendicular to the longitudinal direction, which is located in the girder S, does not coincide with or shifts from the upper end of one standing portion c4 of the substantially U-shaped girder lower bar Cb. In this way, if the lower end of the partition wall c8 located in the spar S and the upper end of one upright portion c4 of the lower spar Cb in the spar are not joined or displaced, the strength and rigidity of the spar S, in particular, The buckling strength with respect to the load from above will decrease. In the present embodiment, in order to solve such a problem, as shown in FIG. 4 and FIG. 5, one standing portion c4 of the in-girder lower bar Cb connected to the partition wall c8 is used. The lower end of the partition wall c8 located in the spar S and the upper end of one erected portion c4 of the lower beam Cb in the spar are inclined outward and away from the other erected part c4 that is not connected to the partition wall c8. And the lower end of the partition wall c8 located in the girder S and the upper end of one standing portion c4 of the lower beam in the girder Cb are connected. Therefore, the connection portion Z between the lower end of the partition wall c8 and the upper end of one upright portion c4 of the in-girder lower bar Cb is curved outward with respect to the other upright portion c4 not connected to the partition wall c8. It will be. By comprising in this way, the intensity | strength and rigidity of the girder S, especially the buckling strength with respect to the load from upper direction improve.
[0032]
Next, with reference to FIGS. 6 and 7, the fork insertion port side connecting beam portion 5 that connects both longitudinal ends of the side beam S <b> 1 and both longitudinal ends of the intermediate beam S <b> 2 will be described.
[0033]
The fork insertion port side connecting crosspiece 5 includes a plate-like flat surface portion 5a for connecting the lower end portion of the long wall s1a of the opposite side beam S1 and the lower end portion of the long wall s1a of the intermediate beam S2, and both end portions of the flat surface portion 5a ( The lower end of the long wall s1a of the opposite side girder S1 and the lower end of the long wall s1a of the intermediate girder S2. And a plate-like inclined portion 5b connecting the portions. Further, on the back surfaces of the flat portion 5a and the inclined portion 5b, connecting ribs 5c that connect the lower end portion of the long wall s1a of the opposite side beam S1 and the long wall s1a of the intermediate beam S2 are suspended at an appropriate interval. At the same time, crossing ribs 5d that cross the connecting ribs 5c are suspended at appropriate intervals along the long walls s1a of the side beams S1 and the intermediate beams S2. If necessary, a drain hole 5e can be drilled in the flat portion 5a surrounded by the connecting rib 5c and the cross rib 5d. By forming the inclined portion 5b as described above, the wheels of the hand forklift can easily get on and pass through the fork insertion port side connecting rail portion 5.
[0034]
Next, with reference to FIGS. 6, 7, and 10 to 13, the center connecting bar portion 6 that connects the center portion of the side beam S <b> 1 and the center portion of the intermediate beam S <b> 2 will be described.
[0035]
The center connecting beam 6 is composed of a plurality of (in this embodiment, five) beams that connect the lower end of the long wall s1a of the opposite side beam S1 and the lower end of the long wall s1a of the intermediate beam S2. Yes. A crosspiece (referred to as a central crosspiece) 6a located at the center of the central connecting crosspiece 6 is a plurality of (this book) connecting the lower end of the long wall s1a of the opposite side beam S1 and the lower end of the long wall s1a of the intermediate beam S2. In the embodiment, three) vertical connecting ribs 6a1, and an appropriate number of crossing vertical ribs 6a2 formed along the long walls s1a of the side girders S1 and the intermediate girders S2 and crossing the vertical connecting ribs 6a1. have. A cell P1 surrounded by the long wall s1a of the side spar S1, the vertical connecting rib 6a1, and the cross vertical rib 6a2 facing the long wall s1a of the side spar S1 (hereinafter referred to as a side spar-side cell) P1. The cell is formed and surrounded by the long wall s1a of the intermediate beam S2, the vertical connecting rib 6a1, and the crossing vertical rib 6a2 facing the long wall s1a of the intermediate beam S2 (hereinafter referred to as the intermediate beam side cell). P2 is formed, and a cell surrounded by the vertical connecting rib 6a1 and the crossing vertical rib 6a2 (hereinafter referred to as an intermediate cell) between the side-girder-side cell P1 and the intermediate-girder-side cell P2. P3 is formed. Further, a cell located near the long wall s1a of the side girder S1, that is, the side girder side cell P1 and the intermediate cell P3 adjacent to the side girder side cell P1, is formed with a bottom plate p1, similarly. The bottom plate p1 is also formed in a cell located in the vicinity of the long wall s1a of the intermediate beam S2, that is, the intermediate cell P2 and the intermediate cell P3 adjacent to the intermediate beam side cell P2. If necessary, drain holes p1a can be formed in the bottom plate p1.
[0036]
A side bar 6b having the same height as the central bar 6a is formed at a predetermined interval on the fork insertion port side connecting bar part 5 side of the central bar 6a constituting the central connecting bar 6a. The side bar 6b includes a plurality of (two in this embodiment) vertical connecting ribs 6b1 that connect the lower end of the long wall s1a of the opposite side beam S1 and the lower end of the long wall s1a of the intermediate beam S2. It is formed along the long wall s1a of the side spar S1 and the intermediate spar S2, and has an appropriate number of crossing vertical ribs 6b2 crossing the vertical connecting ribs 6b1. A cell P4 surrounded by the long wall s1a of the side girder S1, the vertical connecting rib 6b1, and the cross vertical rib 6b2 facing the long wall s1a of the side girder S1 (hereinafter referred to as a side girder side cell) P4. The cell is formed and surrounded by the long wall s1a of the intermediate beam S2, the vertical connecting rib 6b1, and the crossing vertical rib 6b2 facing the long wall s1a of the intermediate beam S2 (hereinafter referred to as the intermediate beam side cell). P5 is formed, and a cell surrounded by a vertical connecting rib 6b1 and a crossing vertical rib 6b2 (hereinafter referred to as an intermediate cell) between the side beam side cell P4 and the intermediate beam side cell P5. P6 is formed. Further, a cell located near the long wall s1a of the side girder S1, that is, the side girder side cell P4 and the intermediate cell P6 adjacent to the side girder side cell P4 is formed with a bottom plate p2, similarly, The bottom plate p2 is also formed in a cell located in the vicinity of the long wall s1a of the intermediate beam S2, that is, the intermediate cell P5 and the intermediate cell P6 adjacent to the intermediate beam side cell P5. If necessary, drain holes p2a can be formed in the bottom plate p2.
[0037]
An inclined bar 6c is formed at a predetermined interval on the fork insertion port side connecting bar 5 side of the side bar 6b constituting the central connecting bar 6. The inclined beam 6c connects the lower end of the long wall s1a of the opposite side beam S1 and the lower end of the long wall s1a of the intermediate beam S2, and gradually increases the height toward the fork insertion port side connection beam 5 direction. A plurality of (three in the present embodiment) vertical connection ribs 6c1 and a side surface shape that intersects the vertical connection ribs 6c1 (substantially parallel to the side bars 6b and the long wall s1a of the intermediate beam S2). And a suitable number of crossing vertical ribs 6c2 having a substantially triangular shape. A cell P7 surrounded by the long wall s1a of the side girder S1, the vertical connecting rib 6c1, and the cross vertical rib 6c2 facing the long wall s1a of the side girder S1 (hereinafter referred to as a side girder side cell) P7. The cell is formed and surrounded by the long wall s1a of the intermediate beam S2, the vertical connecting rib 6c1, and the crossing vertical rib 6c2 facing the long wall s1a of the intermediate beam S2 (hereinafter referred to as the intermediate beam side cell). P8 is formed, and a cell surrounded by a vertical connecting rib 6c1 and a crossing vertical rib 6c2 (hereinafter referred to as an intermediate cell) between the side beam side cell P7 and the intermediate beam side cell P8. P9 is formed. Further, a cell located near the long wall s1a of the side girder S1, that is, the side girder side cell P7 and the intermediate cell P9 adjacent to the side girder side cell P7 is formed with a bottom plate p3. The bottom plate p3 is also formed in a cell located in the vicinity of the long wall s1a of the intermediate beam S2, that is, the intermediate cell P8 and the intermediate cell P9 adjacent to the intermediate beam cell P8. If necessary, drain holes p3a can be formed in the bottom plate p3. In the present embodiment, the intermediate girder side cell P9 other than the side girder side cell P7, intermediate girder side cell P8, and intermediate girder side cell P9 on which the bottom plate p3 is formed is covered with the top plate 6c3. .
[0038]
As described above, the bottom plate p1 is placed on the cells P1 to P9 located in the vicinity of the long wall s1a of the central beam 6a, the side beam 6b, and the side beam S1 of the inclined beam 6c and the middle beam S2 that constitute the central connection beam part 6. Since p3 is formed, when the synthetic resin pallets on which the articles are placed are stacked, the articles placed on the synthetic resin pallets located on the lower side of the synthetic resin pallets on the lower side The bottom plates p1 to p3 formed in the cells P1 to P9 located in the vicinity of the long wall s1a of the central beam 6a, the side beam 6b and the inclined beam 6c constituting the central link beam 6 and the side wall beam S1 of the intermediate beam S2. Because of the surface contact, the article placed on the synthetic resin pallet located below is less damaged than the conventional case where the lower end of the rib contacts.
[0039]
In the above-described embodiment, an example is shown in which the bottom plates p1 to p3 are formed in the cells P1 to P9 located in the vicinity of the side beam S1 and the intermediate beam S2 of the central connecting beam 6, but the fork A similar bottom plate can be formed in a cell located in the vicinity of the side beam S1 and the intermediate beam S2 of the insertion port side connecting bar portion 5.
[0040]
In the embodiment described above, a so-called two-way synthetic resin pallet is shown, but the present invention can also be applied to a four-way synthetic resin pallet.
[0041]
【The invention's effect】
Since the present invention has the above-described configuration, the following effects can be achieved.
[0042]
By extending the horizontal portions constituting the wide vertical ribs in the direction approaching each other, the space between the horizontal portions of the vertical ribs is reduced, so that the placement area of the article placement surface of the upper deck is increased. Therefore, the biting between the vertical ribs of the article to be placed can be suppressed, and the article can be prevented from being damaged.
[Brief description of the drawings]
FIG. 1 is a perspective view of a synthetic resin pallet according to the present invention.
FIG. 2 is a rear perspective view of the synthetic resin pallet of the present invention.
FIG. 3 is a partial perspective view of the synthetic resin pallet of the present invention including a cross-section inside the spar along the long wall of the side spar.
4 is a partially enlarged perspective view of FIG. 3. FIG.
FIG. 5 is a partial front view of FIG. 3;
FIG. 6 is a partial perspective view of the synthetic resin pallet of the present invention including a cross-section of the fork insertion hole along the fork insertion hole.
FIG. 7 is a vertical sectional view of the synthetic resin pallet of the present invention along the fork insertion hole.
FIG. 8 is a cross-sectional view perpendicular to the length direction of the anti-slip tape affixing upper bar and anti-slip tape constituting the synthetic resin pallet of the present invention.
FIG. 9 is a partial vertical sectional view of the upper deck constituting the synthetic resin pallet of the present invention.
FIG. 10 is a partial perspective view including a partial cross section in the vicinity of a central connecting bar portion constituting the synthetic resin pallet of the present invention.
FIG. 11 is a partial rear perspective view including a partial cross section near the central connecting bar portion constituting the synthetic resin pallet of the present invention.
FIG. 12 is a partial vertical cross-sectional view of the vicinity of a central connecting bar constituting the synthetic resin pallet of the present invention.
FIG. 13 is a partial vertical sectional view in the vicinity of the beam portion of the central connection bar portion constituting the synthetic resin pallet of the present invention.
[Explanation of symbols]
Ca ················································································································································· Crosspiece Ct ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Anti-slip tape affixed upper c1a ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Concave groove c8 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Partition wall S1 ..... Side girder S2 ... Intermediate girder s1a ... Long wall s1b ...・ ・ ・ ・ ・ ・ Short Wall 1 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Upper Deck 2 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Lower Deck 3 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・.... Fork insertion hole 4 ... Opening 4a ... Connection bar 5 ... ..Fork insertion port side connecting beam 6 ..... Center connecting beam

Claims (1)

An upper deck, a lower deck, connecting said upper deck and the lower deck, and an intermediate digit located at the central portion of the opposite side girder and the side portion of digits, to the lower deck, the In a synthetic resin pallet in which an opening surrounded by a side girder, the intermediate girder, a fork insertion port side connecting beam portion, and a central connecting beam portion is formed , a predetermined interval is provided above the opening. A pair of substantially inverted U-shaped anti-slip tape application upper bars are disposed, and between the pair of anti-slip tape application upper bars, the vertical part and the horizontal part are substantially T-shaped. A plurality of formed vertical ribs are disposed, and an interval between a hanging part constituting the anti-slip tape attaching upper crosspiece and a vertical part constituting the vertical rib adjacent to the anti-slip tape attaching upper crosspiece and The adjacent vertical ribs located in the center are constructed. The interval between the vertical portions is wider than the interval between the vertical portions constituting the other adjacent vertical ribs located above the opening, and further the horizontal portion constituting the anti-slip tape attaching upper crosspiece The horizontal portion constituting the vertical rib adjacent to the top portion and the upper rail to which the anti-slip tape is attached is extended in a direction approaching each other, and the horizontal portion constituting the adjacent vertical rib located in the center portion is mutually extended. Synthetic resin pallet characterized by extending in the approaching direction .

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