JP5215907B2 - Plastic pallet - Google Patents

Description

The present invention relates to a synthetic resin pallet that is used for carrying and storing various articles on a loading surface.

Synthetic resin pallets are excellent in impact resistance, durability, moldability, and the like, but have a drawback of being slippery. Therefore, there is a type in which a non-slip tape made of a polymer material is welded with hot air or the like to the surface of a deck board of a synthetic resin pallet.

For example, there is a synthetic resin pallet in which an outer peripheral frame having a notch is provided on the periphery of the deck board, and an anti-slip tape is attached to the vicinity of both ends of the outer peripheral frame. In this synthetic resin pallet, the notch portion is provided in the outer peripheral frame so that the pressing roller can be pressed to the vicinity of the outer peripheral frame. Therefore, the non-slip tape can be bonded to both end portions of the outer peripheral frame. Even when the synthetic resin pallets provided with the outer peripheral frame are stacked in multiple stages, the upper pallet can be prevented from slipping and loaded in multiple stages in a stable posture (Patent Document 1). reference).

In addition, a non-slip tape having a narrow groove formed in the deck board and provided with strips protruding laterally across the longitudinal direction on both sides of the lower end of the tape main body is brought into close contact with the inner surface side of the narrow groove, and the top surface of the non-slip tape There is a pallet made of synthetic resin with a portion protruding upward from the upper surface of the deck surface. In this synthetic resin pallet, a weir is formed at the bottom of the end of the elongated groove, and the upper surface of the end of the anti-slip tape is flush with the upper surface of the weir. Does not protrude upward, and the fork lift fork tip does not hit the end of the anti-slip tape, or other objects are not caught on the end surface of the anti-slip tape (patent) Reference 2).

Also, a groove for welding the non-slip tape is formed on the deck board, the corner formed by the bottom surface of the groove and the side wall of the deck board on the end side is set to a substantially right angle, and the peripheral edge of the deck board is formed in the groove. There is a synthetic resin pallet which is formed in a curved surface having a radius of curvature larger than the depth and continuous to a position corresponding to a corner, and the end of the tape is chamfered along the corner. In this synthetic resin pallet, since the slope is formed so that the impact can be appropriately released when a load or the like comes into contact with the end of the tape, the tape peeling prevention function is further improved. Yes (see Patent Document 3).

JP 2003-285838 A Japanese Patent Laid-Open No. 11-208662 Japanese Patent Laid-Open No. 07-061447

However, in the synthetic resin pallet of Patent Document 1, since the outer peripheral frame is provided on the periphery of the deck board, even if the outer peripheral frame has a notch, rainwater or the like accumulates on the deck board surface. There is a problem.

Moreover, in the synthetic resin pallet of patent document 2, the special shape of a tape that the strip | belt piece which protrudes to a side over a longitudinal direction is provided in the lower end part both sides of the tape main-body part is required. Furthermore, since the weir is formed at the bottom of the end of the elongated groove, it is difficult to weld the tape with an automatic machine, and there is a problem that rainwater or the like accumulates in the weir.

Further, in the synthetic resin pallet disclosed in Patent Document 3, although the trouble that rainwater accumulates is reduced, since the tape end protrudes on the deck board surface, the load collides with the tape end when loading the load. As a result, the end of the tape is damaged or peeled off.

In view of such a situation, the present invention prevents the tape board from colliding with the end of the tape when it is loaded and damaging or peeling off, and does not accumulate rainwater on the deck board. It is to provide a resin pallet.

That is, according to the present invention, in a synthetic resin pallet having a deck board and a girder, at least a pair of notches are provided on the periphery of the deck board so as to face each other, and the inside of the notches is inclined. The surface is formed, the deck board surface, the inclined surface and the side surface of the synthetic resin pallet are continuous, and the non-slip tape is stuck inside the notch A synthetic resin pallet is provided.

According to the synthetic resin pallet of the present invention, the inclined surface is formed inside the notch provided in the peripheral edge of the deck board so that the surface of the deck board, the inclined surface, and the side surface of the deck board are continuous. Therefore, the load or the like does not collide with the end portion of the non-slip tape welded to the inside of the notch portion, and the end portion of the tape is not damaged or peeled off. Moreover, since rainwater etc. do not collect on the deck board surface, it is hygienic.

It is a top view of the two-way insertion synthetic resin pallet which is one embodiment of the present invention. It is a side view of the A arrow line in FIG. It is a side view of the B arrow line in FIG. It is the elements on larger scale which show the state which bonded the antiskid tape on the two-way synthetic resin pallet shown in FIG. It is the elements on larger scale of the synthetic resin pallets of other embodiment of this invention. It is CC sectional view taken on the line of the state which bonded the antiskid tape in FIG. It is a schematic diagram which shows the mode at the time of loading a load in FIG.

Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 is a plan view of a two-way synthetic resin pallet (hereinafter sometimes simply referred to as a pallet) 1 according to an embodiment of the present invention. The pallet 1 is formed of an upper deck board 2, a lower deck board 3, and a girder 4, and has end girders 41 and 41 and an intermediate girder 42 as the girder 4. And the fork insertion hole 5 is formed between the end beam 41 and the intermediate beam 42 by welding the end surfaces of the end beam 41, 41 and the intermediate beam 42 (refer FIG. 2). Since the pallet 1 is two-way, fork insertion holes 5 are formed only on the pair of side surfaces, and no fork insertion holes are formed on the other pair of side surfaces (see FIG. 3). A notch 6 is formed on the periphery of the top deck board 2 of the pallet 1, and a non-slip tape 7 is welded to the surface. The notch 6 is provided so that the surface of the end of the anti-slip tape 7 does not protrude from the surface 21 of the upper deck board 2 when the anti-slip tape 7 is welded to the upper deck board 2. In addition, as the non-slip tape 7, there is one having a thickness (t) of about 2 to 5 mm and a width (W _T ) of about 5 to 25 mm.

Usually, the anti-slip tape 7 is welded from one end of the upper deck board 2 to the other end facing the load so that the load loaded on the upper deck board 2 does not slip. In particular, when the non-slip tape 7 wound in a reel shape is continuously welded by an automatic machine, it is welded in a straight line from one end of the top deck board 2 to the other end facing the top deck board 2. It is preferable. Therefore, the notch 6 is formed at one end of the peripheral edge of the top deck board 2 and at the other end facing the top deck board 2 so that the pair of notches 6 are formed on the top deck board 2. It is provided at a position facing the periphery (see FIG. 1). A groove having a width similar to the width of the notches 6 may be formed on the surface 21 of the upper deck board 2 so as to correspond to the pair of notches 6.

As shown in FIG. 4, an inclined surface 22 is provided inside the notch 6 so that the surface of the end 71 of the anti-slip tape 7 does not protrude from the surface 21 of the upper deck board 2. The surface 21 of the upper deck board 2, the inclined surface 22, and the side surface 23 of the synthetic resin pallet are continuous. The side surface 24 of the notch 6 may be substantially perpendicular to the surface 21 of the upper deck board 2 (when θ≈0 °). The deck board 2 is preferably formed on the surface 21 so as to extend in the direction of the surface 21. Moreover, it is good also considering the side surface 24 of the notch 6 as a curved surface. Furthermore, the surface 21 of the upper deck board 2, the side surface 24 of the notch 6, and the side surface 23 of the pallet 1 may be continuous to form a curved surface.

The inclined surface 22 may be planar, but is preferably formed in a curved shape in consideration of the rigidity of the anti-slip tape 7 and the contact state when the load is loaded. If the inclined surface 22 is flat, a bent surface portion is generated at the boundary between the surface 21 and the inclined surface 22 of the upper deck board 2 and at the boundary between the inclined surface 22 and the side surface 23 of the synthetic resin pallet. In the case of a curved shape, the surface 21 and the inclined surface 22 of the top deck board 2 and the side surface 23 of the synthetic resin pallet are smoothly continuous. The impact caused by the contact of the load is reduced. Therefore, when making such a curved inclined surface, it is preferable to form a part of a circular shape in a side view, and it is particularly preferable to form a body having a partial shape of an elliptical shape in a side view. Further, it is preferable that the short axis in the elliptical shape in side view is located at the boundary between the surface of the deck board and the inclined surface, and the long axis is located at the boundary between the inclined surface and the side surface of the synthetic resin pallet. (See FIG. 6).

When welding the non-slip tape 7, a method of welding by pressing the surface of the non-slip tape 7 with a pressure roller while blowing hot air on the surface 21 of the top deck board 2 and the back surface of the non-slip tape 7 because it is simple, the width of the inner cutout portion 6 and W _P, the width of the grip tape 7 is taken as W _T, it is preferable that there is a W _T ≦ W _P. When W _P = W _T , the non-slip tape 7 fits inside the notch 6 without any gaps, so that rainwater or the like does not enter the bottom surface of the non-slip tape 7. However, in case of bonding an automatic machine, since it is better that there is some clearance, it is preferable that there is a W T _{<W P.} In addition, since the pressure roller is normally pressed against the entire surface of the non-slip tape 7, the inner width of the notch 6 may be slightly larger than the width of the pressure roller. preferable. In this case, a gap is formed inside the notch 6 between the side surface 24 of the notch 6 and the anti-slip tape 7, but the inclined surface 22 inside the notch 6 serves as the top deck. Since it is continuously formed on the surface 21 of the board 2 and the side surface 23 of the synthetic resin pallet, rainwater or the like does not accumulate.

As shown in FIG. 5, it is also preferable to form at least one convex portion 25 on the inclined surface 22 in order to improve the welding strength of the end portion 71 of the anti-slip tape 7. When hot air is blown, the heat conduction efficiency of the convex portion 25 is improved, so that it functions like a so-called “margin” and the anti-slip tape 7 can be easily welded. After welding, a part 72 of the end portion 71 of the anti-slip tape 7 is cut with a cutter or the like so that the end portion 71 does not protrude from the side surface 22 of the synthetic resin pallet (see FIG. 6).

The shape of the convex portion 25 may be, for example, a triangular pyramid shape, a cylindrical shape, or a hemispherical shape, but is a ridge shape that is substantially parallel to the width direction of the notch portion 6. It is particularly preferable to use the convex portion 25. The fact that it is substantially parallel to the width direction of the notch 6 means a direction substantially perpendicular to the length direction of the anti-slip tape 7, so that the plastic pallet is bent and pulled to the anti-slip tape 7. Even if stress or compressive stress is applied, sufficient adhesive strength is maintained and peeling becomes difficult. It should be noted that the plurality of convex portions 25 (or convex-shaped convex portions) on the inclined surface 22 may all be the same size or different sizes. Moreover, you may provide such a convex part 25 in the appropriate position of the surface 21 of the upper surface deck board 2 to which not only the inclined surface 22 but the antiskid tape 7 is welded.

Further, by forming the convex-shaped convex portion 25 on the inclined surface 22 inside the notch portion 6, even when the anti-slip tape 7 is used without being welded to the synthetic resin pallet, the effect as a reinforcing rib is obtained. Therefore, there is an advantage of improving the impact strength. In this case, the size of the convex portion adjacent to the surface side of the top deck board 2 is set such that the top portion (or a part of the convex portion) does not protrude from the surface 21 of the top deck board 2, What is necessary is just to make it the magnitude | size of the convex part adjacent to the side surface side of a synthetic resin pallet so that the top part (or a part of convex part) may not protrude from the side surface 23 of a synthetic resin pallet.

When the load 8 is loaded on the synthetic resin pallet 1 thus manufactured, the load 8 does not collide with or come into contact with the end portion 71 of the non-slip tape 7. Does not peel off (see FIG. 7).

As long as the plastic pallet is welded with a non-slip tape, it may be a nesting type synthetic resin pallet consisting only of a deck board and a girder, and it may be a two-way type or a four-way type. It may be used on both sides or on one side.

DESCRIPTION OF SYMBOLS 1 Synthetic resin pallet 2 Upper surface deck board 21 Upper surface 22 Inclined surface 23 Side surface 24 of a synthetic resin pallet 24 Side surface of a notch 25 Convex part 3 Lower surface deck board 4 Girder part 41 Corner girder 42 Intermediate girder 5 Fork insertion hole 6 Notch Part 7 Anti-slip tape 71 End of anti-slip tape 8 Load

Claims (4)

In a plastic pallet with deck boards and girders,
On the periphery of the deck board, at least a pair of notches are provided at positions facing each other,
An inclined surface is formed inside the notch,
Provided so that the surface of the deck board, the inclined surface and the side surface of the synthetic resin pallet are continuous,
A synthetic resin pallet characterized in that a non-slip tape is stuck inside the notch. The width of the inside of the cutout portion and W _P, the width of the grip tape is taken as W _T, W _T ≦ W _P and are in Claim 1 and a synthetic resin pallet according. The synthetic resin pallet according to claim 1 or 2, wherein at least one convex portion is formed on at least the inclined surface. The synthetic resin pallet according to claim 3, wherein the convex portion has a ridge shape and is provided so as to be substantially parallel to a width direction of the notch portion.

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