Anti-slip material for pallets

Abstract

To provide a non-slip member for a press-fit type pallet hardly dropping from a recessed part or a hole of the pallet.SOLUTION: A non-slip member 10 for a press-fit type pallet for preventing slipping of a cargo loaded on an upper face of a pallet 20 to the upper face of the pallet 20 by pressing in a hole 25 of the pallet 20, has: a pressing-in part 11 pressed-in the hole 25; and a slip-preventing part 12 provided at the front side in a pressing-in direction in the pressing-in part 11. JIS-A hardness of the roughly entire part including the pressing-in part 11 and the slip-preventing part 12 is set to be 45 degrees or more, and multiple slip-preventing projections 12a are formed on the slip-preventing part 12.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to an anti-slip member for a pallet that is press-fitted into a recess or hole in a pallet used when transporting cargo, etc., to prevent the cargo from slipping on the pallet. [Background technology]

[0002] It is common to use pallets when handling goods in warehouses, etc. Pallets have slots on the sides for inserting the claws of a forklift or hand truck. By placing goods on top of the pallet, it becomes possible to efficiently handle goods using a forklift or hand truck.

[0003] Wooden pallets are widely used. However, wooden pallets have the disadvantage of being prone to rot. They also have the disadvantage of their surfaces becoming easily roughened. For this reason, in recent years, resin and metal pallets have also begun to be used. However, resin and metal pallets have smoother surfaces than wooden pallets. This has led to the problem that cargo placed on the pallet is prone to slipping on the top surface of the pallet.

[0004] Incidentally, in the past, anti-slip members (anti-slip members for pallets) have been attached to pallets to prevent cargo loaded on the pallets from slipping. Perhaps because the top surface of a typical pallet (flat pallet) has multiple recesses and holes formed therein, many anti-slip members for pallets have been proposed that are press-fitted into these recesses and holes (hereinafter sometimes referred to as "press-fit type anti-slip members for pallets") (see, for example, Patent Documents 1 to 10). Press-fit type anti-slip members for pallets are often made of rubber or resin with a high coefficient of friction. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Jikko No. 49-024837 [Patent Document 2] Jikko No. 52-003005 [Patent Document 3] Jikko No. 52-003008 [Patent Document 4] Japanese Utility Model Application Publication No. 48-052258 [Patent Document 5] Jikko No. 52-007003 [Patent Document 6] Jikko No. 56-037941 [Patent Document 7] Jikko No. 56-049880 [Patent Document 8] Japanese Utility Model Application Publication No. 56-109921 [Patent Document 9] Japanese Utility Model Application Publication No. 58-052044 [Patent Document 10] Japanese Patent Application Publication No. 59-199445 Summary of the Invention [Problem to be solved by the invention]

[0006] However, conventional press-fit type anti-slip members for pallets easily deform, and can fall out of the recesses or holes they were pressed into. Furthermore, even if conventional press-fit type anti-slip members for pallets can provide the desired anti-slip effect when the bottom surface of the cargo or the top surface of the pallet is dry, there is a risk that the cargo will slip on the top surface of the pallet when water or oil is attached to the bottom surface of the cargo or the top surface of the pallet.

[0007] The present invention has been made to solve the above problems, and provides a press-fit type anti-slip member for a pallet that is unlikely to fall out of the recesses or holes in the pallet. Another object of the present invention is to provide a press-fit type anti-slip member for a pallet that can provide excellent anti-slip effects not only when the bottom surface of the cargo or the top surface of the pallet are dry, but also when water or oil is attached to those surfaces. [Means for solving the problem]

[0008] The above issues are: A press-fit type anti-slip member for a pallet that prevents a load placed on the top surface of the pallet from slipping on the top surface of the pallet by being press-fitted into a recess or hole in the pallet, a press-fit portion that is press-fitted into the recess or the hole; a non-slip portion provided on the front side of the press-fit portion in the press-fit direction; and The JIS-A hardness of the entire part, including the press-fit part and the anti-slip part, is 45 degrees or more, Multiple anti-slip protrusions are formed on the anti-slip portion A press-fit type anti-slip member for a pallet characterized by This is solved by providing

[0009] In this way, by making the JIS-A hardness of the entire anti-slip member for pallets 45 degrees or more, the anti-slip member for pallets can be made harder, and the anti-slip member for pallets press-fitted into the recesses or holes of the pallet can be prevented from slipping out of those recesses or holes. This prevents the anti-slip member for pallets from falling off or being lost. Furthermore, by forming multiple anti-slip protrusions on the anti-slip portion, the anti-slip member for pallets can provide excellent anti-slip performance even when water or oil is attached to the bottom of the cargo or the top surface of the pallet.

[0010] The material forming almost the entire anti-slip member for pallets of the present invention (almost the entire member including the press-fit portion and the anti-slip portion) is not particularly limited in type as long as it has the above-mentioned JIS-A hardness, but it is preferable to form it from an elastic material consisting of rubber or a thermoplastic elastomer, or a mixture of these with a thermoplastic resin.

[0011] Among the elastic materials, examples of rubber materials include those made from ethylene propylene diene rubber (EPDM) or nitrile rubber (NBR). This allows the pallet anti-slip member to have excellent abrasion resistance, strength, and oil resistance. Styrene-butadiene-styrene block copolymer (SBS) can also be added to these materials. This facilitates injection molding of the material and shortens the vulcanization time of the rubber material. Recycled rubber can also be used as the rubber material. Examples of thermoplastic elastomers (TPEs) include olefin-based TPEs, vinyl chloride-based TPEs, and urethane-based TPEs. These thermoplastic elastomers (TPEs) have the advantage of excellent moldability. Examples of thermoplastic resins include polyvinyl chloride (PVC). Adding vinyl chloride not only imparts appropriate hardness to the pallet anti-slip member, but also further increases the strength and durability of the pallet anti-slip member.

[0012] It is also preferable to add an inorganic pigment to the elastic material. Examples of inorganic pigments include carbon, zinc oxide, cobalt oxide, iron oxide, antimony oxide, titanium oxide, chromium oxide, lead chromate molybdate sulfate, calcium carbonate, and zinc sulfide. When the pallet anti-slip member 10 is used over a long period of time (especially outdoors), its surface may harden, potentially causing it to lose its desired anti-slip function. Adding the inorganic pigment improves the weather resistance of the pallet anti-slip member, allowing it to maintain its desired anti-slip function for a long period of time. Carbon (e.g., carbon black or carbon white) and inorganic pigments with excellent ultraviolet absorption are particularly preferable. The inorganic pigments may be used alone or in combination.

[0013] The shape of the anti-slip protrusions in the anti-slip member for pallets of the present invention is not particularly limited. However, in order for the anti-slip member for pallets to provide excellent anti-slip performance even when water or oil is attached to the bottom surface of the cargo or the top surface of the pallet, it is preferable to adopt the following shape. That is, the horizontal cross section of the anti-slip protrusion is V-shaped, and a reinforcing portion for preventing the anti-slip protrusion from tipping over is provided surrounding the base of the anti-slip protrusion. This makes it difficult for water or oil to penetrate between the surface of the anti-slip protrusion that comes into contact with the bottom surface of the cargo (hereinafter sometimes referred to as the "tip surface of the anti-slip protrusion") and the bottom surface of the cargo. In addition, the provision of the reinforcing portion makes the anti-slip protrusion less likely to tip over, making it easier to maintain that state (a state in which water and oil are less likely to penetrate).

[0014] In this case (when the horizontal cross section of the anti-slip protrusion is V-shaped), there are no particular limitations on the opening angle of the V-shape of the horizontal cross section of the anti-slip protrusion. The opening angle of the V-shape can be set appropriately in the range of greater than 0° and less than 180°. However, if the opening angle of the V-shape is too small, the anti-slip protrusion will be more likely to tilt in the width direction of the V-shape, and if the opening angle of the V-shape is too large, the anti-slip protrusion will be more likely to tilt in the length direction of the V-shape. For this reason, it is preferable to set the opening angle of the V-shape of the horizontal cross section of the anti-slip protrusion in the range of 30 to 150°.

[0015] In the anti-slip member for pallets of the present invention, the surface of the anti-slip protrusion that comes into contact with the cargo (tip surface) may be rough, but in this case, water or oil may easily get in between the tip surface of the anti-slip protrusion and the bottom surface of the cargo. Furthermore, the actual contact area between the tip surface of the anti-slip protrusion and the bottom surface of the cargo will be small, making it difficult to ensure a large frictional force between the anti-slip protrusion and the bottom surface of the cargo. For this reason, it is preferable to make the tip surface of the anti-slip protrusion as smooth as possible. Specifically, it is preferable to set the surface roughness (Ra) of the tip surface of the anti-slip protrusion to 30 μm or less.

[0016] So far, we have explained how to prevent cargo from slipping on the top surface of a pallet, but the problem of pallet slippage can also occur between the pallet and the claws of a lift inserted into the pallet. A press-fit type anti-slip member for a pallet that prevents the pallet from slipping on the upper surface of the claws of a lift inserted into the pallet by being press-fitted into a recess or hole in the pallet, a press-fit portion that is press-fitted into the recess or the hole; a non-slip portion provided on the front side of the press-fit portion in the press-fit direction; and The JIS-A hardness of the entire part, including the press-fit part and the anti-slip part, is 45 degrees or more, Multiple anti-slip protrusions are formed on the anti-slip portion A press-fit type anti-slip member for a pallet characterized by This is solved by providing Other than the location of use, it is similar to the anti-slip member for pallets described above (anti-slip member for pallets that prevents cargo from slipping on the top surface of the pallet). [Effects of the Invention]

[0017] As described above, the present invention makes it possible to provide a press-fit type anti-slip member for a pallet that is unlikely to fall out of the recesses or holes in the pallet. It also makes it possible to provide a press-fit type anti-slip member for a pallet that exhibits excellent anti-slip properties not only when the bottom surface of the cargo or the top surface of the pallet is dry, but also when water or oil is attached to those surfaces. [Brief explanation of the drawings]

[0018] [Figure 1] 1 is a perspective view showing a state in which an anti-slip member for a pallet according to the present invention is attached to a hole in a pallet. FIG. [Figure 2] 1 is a perspective view showing an anti-slip member for a pallet according to the present invention. [Figure 3] 1 is a plan view showing an anti-slip member for a pallet according to the present invention. FIG. [Figure 4] 4 is a cross-sectional view showing the anti-slip member for a pallet according to the present invention taken along the XX plane in FIG. 3. FIG. [Figure 5] 4 is a cross-sectional view showing the state in which the anti-slip member for a pallet according to the present invention is attached to a hole in a pallet, taken along a plane corresponding to the YY plane in FIG. 3. [Figure 6] 1 is a plan view showing an example of the arrangement of an anti-slip member for a pallet according to the present invention when preventing cargo from slipping on the top surface of the pallet. FIG. [Figure 7] 1 is a plan view showing an example of the arrangement of an anti-slip member for a pallet according to the present invention when preventing the pallet from slipping against the claws of a lift. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0019] A preferred embodiment of the anti-slip member for a pallet of the present invention will be described in more detail with reference to the drawings. The configurations described below are merely preferred embodiments, and the technical scope of the anti-slip member for a pallet of the present invention is not limited to the configurations described below. The anti-slip member for a pallet of the present invention can be modified as appropriate within the scope of the invention.

[0020] 1. Usage of anti-slip materials for pallets FIG. 1 is a perspective view showing a pallet anti-slip member 10 of the present invention attached to a hole 21 in a pallet 20. Loading and unloading operations in warehouses and the like are generally performed with cargo (not shown) placed on the top surface of a pallet 20 as shown in FIG. 1. This pallet 20 is a rectangular plate having a top plate 21 that forms the top surface of the pallet 20, a bottom plate 22 that forms the underside (bottom surface) of the pallet 20, and side end surfaces 23 that connect the peripheral edges of the top plate 21 and bottom plate 22. This type of pallet 20 is also called a "flat pallet." Some pallets 20 do not have a bottom plate 22, leaving the bottom surface (particularly the surface below the insertion slot 24) open.

[0021] The side end faces 23 of the pallet 20 are provided with insertion ports 24 for inserting the claws of a lift such as a forklift (not shown) or a hand lift (not shown). Lift claws are usually provided in a pair on the left and right, and therefore the insertion ports 24 for inserting them are also usually provided in a pair on the left and right. In the pallet 20 shown in Figure 1, of the two sets (four faces) of opposing side end faces 23, only one set (two faces) of side end faces 23 has insertion ports 24, but it is also possible to provide insertion ports 24 on all of the two sets of side end faces 23.

[0022] By placing cargo on the top surface of the pallet 20 (top surface of the top plate 21) shown in Figure 1, the claws of the lift can be easily inserted under the cargo (insertion opening 24 of the pallet 20). This allows for efficient cargo handling operations in warehouses, etc.

[0023] However, as already mentioned, in recent years, wooden pallets 20 have increasingly been replaced with plastic or metal pallets. The pallet 20 shown in FIG. 1 is also made of plastic. However, plastic or metal pallets 20 have lower surface friction than wooden pallets. For this reason, with plastic or metal pallets 20, cargo tends to slide easily on the top surface of the pallet 20, and there is a risk that the cargo may shift or tip over when transported on the pallet 20.

[0024] In this regard, the anti-slip member 10 for a pallet of the present invention, as shown in Figure 1, is attached to the top plate 21 of a pallet 20 to prevent cargo placed on the top surface of the pallet 20 from slipping relative to the top surface of the pallet 20. The top plate 21 of the pallet 20 is provided with a plurality of recesses and holes (areas painted black in Figure 1; holes on the pallet 20 in the figure) for removing weight and draining liquids, and the anti-slip member 10 for a pallet of the present invention is a press-fit type that is attached by being pressed into these recesses and holes. For convenience of illustration in Figure 1, the anti-slip member 10 for a pallet is attached to only one hole 25, but in reality, the anti-slip member 10 for a pallet is attached to multiple hole portions 25.

[0025] 2. Structure of anti-slip members for pallets Fig. 2 is a perspective view showing an anti-slip member 10 for a pallet of the present invention. Fig. 3 is a plan view showing an anti-slip member 10 for a pallet of the present invention. Fig. 4 is a cross-sectional view showing an anti-slip member 10 for a pallet of the present invention cut along the XX plane in Fig. 3. Fig. 5 is a cross-sectional view showing an anti-slip member 10 for a pallet of the present invention attached to a hole 25 of a pallet 20 cut along the plane corresponding to the YY plane in Fig. 3.

[0026] As shown in Fig. 2, the anti-slip member 10 for a pallet of the present invention comprises a press-fit portion 11 and an anti-slip portion 12. The anti-slip member 10 for a pallet may be formed by molding the press-fit portion 11 and the anti-slip portion 12 separately and then integrating them, but in this embodiment, the press-fit portion 11 and the anti-slip portion 12 are molded integrally. This makes the anti-slip member 10 for a pallet excellent in strength and resistant to breakage.

[0027] 2.1 Press-fit section As shown in Fig. 5, the press-fit portion 11 is a portion for press-fitting into a hole portion 25 (or recess) of the pallet 10. In this embodiment, a hook portion 11a is provided at the tip end (the end on the rear side in the press-fitting direction) of the press-fit portion 11. This hook portion 11a is a portion that catches on the rear side of the hole portion 25 when the pallet anti-slip member 10 is press-fitted into the hole portion 25, thereby making it difficult for the pallet anti-slip member 10 to slip out of the hole portion 25.

[0028] However, even if the press-fit portion 11 is provided with a hook portion 11a, if the press-fit portion 11 is soft and easily deformed, there is a risk that the press-fit portion 11 may slip out of the hole portion 25. In this regard, in the anti-slip member 10 for a pallet of the present invention, substantially the entire member, including the press-fit portion 11 and the anti-slip portion 12, is made moderately hard. Specifically, the JIS-A hardness of substantially the entire member, including the press-fit portion 11 and the anti-slip portion 12, is set to 45 degrees or more. This prevents the anti-slip member 10 for a pallet that is press-fitted into the hole portion 25 (or recess) of the pallet 20 from slipping out of the hole portion 25 (or recess). This prevents the anti-slip member 10 for a pallet from falling off or being lost.

[0029] The hardness of the anti-slip member 10 for pallets (JIS-A hardness of substantially the entire member including the press-fit portion 11 and the anti-slip portion 12; the same applies below) is not particularly limited as long as it is 45 degrees or more. However, in order to make it even more difficult for the press-fit portion 11 to slip out, it is preferable that the hardness of the anti-slip member 10 for pallets be 50 degrees or more. It is more preferable that the hardness of the anti-slip member 10 for pallets be 55 degrees or more, and even more preferable that it be 60 degrees or more.

[0030] However, if the anti-slip member 10 for pallets is made too hard, it may be difficult to press-fit the anti-slip member 10 into the hole 25 (or recess) of the pallet 20. It may also be difficult to ensure a high coefficient of friction for the anti-slip member 10 for pallets. For this reason, the hardness of the anti-slip member 10 for pallets is usually set to 80 degrees or less. The hardness of the anti-slip member 10 for pallets is preferably set to 70 degrees or less, and more preferably set to 65 degrees or less. The hardness of the anti-slip member 10 for pallets in this embodiment is approximately 60 degrees.

[0031] As mentioned above, the anti-slip member 10 for a pallet of the present invention, including the press-fit portion 11 and the anti-slip portion 12, is moderately hard (JIS-A hardness of 45 degrees or more). A pallet anti-slip member 10 with such hardness can be obtained by molding it from an elastic material such as rubber, a thermoplastic elastomer, or a mixture of these with a thermoplastic resin. Examples of rubber include natural rubber (NR) and synthetic rubbers such as nitrile butadiene rubber (NBR), ethylene propylene diene rubber (EPDM), butadiene rubber (BR), styrene butadiene rubber (SBR), isoprene rubber (IR), butyl rubber (IIR), chloroprene rubber (CR), acrylic rubber (ACM), urethane rubber (U), silicone rubber (SI), and fluororubber (FKM). Examples of resins include polyvinyl chloride (PVC) and polystyrene (PS).

[0032] In this embodiment, ethylene propylene diene rubber (EPDM) is used as the rubber compounded in the pallet anti-slip members 10. Ethylene propylene diene rubber (EPDM) has excellent weather resistance while also providing the abrasion resistance, strength, and oil resistance required for pallet anti-slip members 10, making it an ideal rubber to compound in the pallet anti-slip members 10. Furthermore, in this embodiment, carbon is added as an inorganic pigment to the ethylene propylene diene rubber (EPDM). This makes the pallet anti-slip members 10 less susceptible to deterioration even when exposed to ultraviolet rays.

[0033] 2.2 Anti-slip part On the other hand, the anti-slip portion 12 is provided on the base end side (the front side in the press-fitting direction) of the press-fit portion 11, and is a portion that comes into contact with the cargo to prevent the cargo from slipping relative to the pallet 20. In addition, the anti-slip portion 12 has a larger horizontal cross section than the press-fit portion 11. Therefore, when the press-fit portion 11 of the pallet anti-slip member 10 is press-fitted into the hole 25 (FIG. 1) of the pallet 20, the anti-slip portion 12 comes into contact with the top surface of the pallet 20, preventing the press-fit portion 11 from entering any deeper into the hole 25.

[0034] 2 to 4, a plurality of anti-slip protrusions 12a are formed on the anti-slip portion 12. As a result, even if water or oil is attached to the bottom surface of the cargo or the top surface of the pallet 20, the water or oil can escape into the gaps between the anti-slip protrusions 12a, preventing the water or oil from getting between the tip surfaces of the anti-slip protrusions 12a and the bottom surface of the cargo. Therefore, even when water or oil is attached to the bottom surface of the cargo or the top surface of the pallet 20, the anti-slip member for pallets 10 can exhibit excellent anti-slip effect.

[0035] However, if the anti-slip protrusions 12a easily collapse, the anti-slip effect described above cannot be stably achieved. In this regard, in the anti-slip member 10 for pallets of the present invention, as shown in FIGS. 2 and 3, the anti-slip protrusions 12 are V-shaped in plan view, and their horizontal cross sections are also V-shaped. This makes it possible to prevent the anti-slip protrusions 12 from collapsing in both the horizontal direction (the width direction of the V) and the vertical direction (the length direction of the V). In addition, as shown in FIGS. 2 to 5, a reinforcing portion 12b is provided around the base of the anti-slip protrusions 12 to prevent the anti-slip protrusions 12 from collapsing. These measures make the anti-slip protrusions 12a less likely to collapse, allowing the anti-slip protrusions 12a to stably achieve the desired anti-slip effect. Furthermore, the reinforcing portion 12b also functions to prevent debris from accumulating at the base of the anti-slip protrusions 12a.

[0036] The opening angle θ (FIG. 3) of the V-shape formed by the non-slip protrusions 12a is not particularly limited as long as it is greater than 0° and less than 180°. However, if the opening angle θ of the V-shape is too small, the non-slip protrusions 12a may be prone to tipping over in the width direction of the V-shape. For this reason, the opening angle θ of the V-shape is preferably 30° or greater. The opening angle θ of the V-shape is more preferably 45° or greater, even more preferably 60° or greater, and optimally 80° or greater.

[0037] However, if the opening angle θ of the V-shape formed by the non-slip protrusions 12a is too large, the non-slip protrusions 12a may be prone to tilting in the vertical width direction of the V-shape. For this reason, the opening angle θ of the V-shape is preferably 150° or less. The opening angle θ of the V-shape is more preferably 140° or less, even more preferably 130° or less, and optimally 120° or less. In this embodiment, the opening angle θ of the V-shape formed by the non-slip protrusions 12a is set to 110°.

[0038] The width W1 (FIG. 3) of the non-slip protrusions 12a is not particularly limited. However, if the width W1 of the non-slip protrusions 12a is too narrow, the non-slip protrusions 12a may be prone to tipping over. For this reason, the width W1 of the non-slip protrusions 12a (if the width W1 varies depending on the location, the minimum value; the same applies hereinafter to the lower limit value of the width W1) is preferably 1 mm or more. The width W1 of the non-slip protrusions 12a is more preferably 1.5 mm or more, and even more preferably 2 mm or more.

[0039] However, if the width W1 of the anti-slip protrusions 12a is too wide, it may be difficult for water or oil to escape if it is present between the tip surface of the anti-slip protrusions 12a and the bottom surface of the luggage. For this reason, the width W1 of the anti-slip protrusions 12a (if the width W1 varies depending on the location, the maximum value; the same applies below to the upper limit value of the width W1) is preferably 20 mm or less. The width W1 of the anti-slip protrusions 12a is more preferably 10 mm or less, and even more preferably 5 mm or less. In this embodiment, the width W1 of the anti-slip protrusions 12a is set to 3 mm.

[0040] The width W2 (FIG. 3) of the reinforcing portion 12b of the non-slip projection 12a is also not particularly limited. However, if the width W2 of the reinforcing portion 12b is made too narrow, the significance of providing the reinforcing portion 12b is diminished. For this reason, the width W2 of the reinforcing portion 12b is usually set to 0.1 mm or more. The width W2 of the reinforcing portion 12b is preferably set to 0.3 mm or more, and more preferably set to 0.5 mm or more.

[0041] However, if the width W2 of the reinforcing portion 12b is made too wide, it may become impossible to arrange the anti-slip protrusions 12b densely, and the anti-slip effect of the anti-slip protrusions 12 may become difficult to achieve. For this reason, the width W2 of the reinforcing portion 12b is usually set to 5 mm or less. The width W2 of the reinforcing portion 12b is preferably 3 mm or less, and more preferably 2 mm or less. In this embodiment, the width W2 of the reinforcing portion 12b is set to 1 mm.

[0042] The width W3 (FIG. 3) of the gap formed between adjacent anti-slip protrusions 12a is also not particularly limited. However, if the gap width W3 is too narrow, when water or oil gets between the luggage and the anti-slip member 12, it becomes difficult for the water or oil to escape through the gap. In addition, dirt and the like are likely to accumulate in the gap. For this reason, the gap width W3 (if the width W2 varies depending on the location, its minimum value; the same applies below to the lower limit value of the width W3) is preferably 0.5 mm or more. The gap width W3 is more preferably 1 mm or more, and even more preferably 1.5 mm or more.

[0043] However, if the gap width W3 is made too wide, it will not be possible to arrange the anti-slip protrusions 12b closely, which may make it difficult for the anti-slip protrusions 12 to provide an effective anti-slip effect. For this reason, the gap width W3 (if the width W2 varies depending on the location, this refers to the maximum value; the same applies to the upper limit of the width W3 below) is usually set to 10 mm or less. The gap width W3 is preferably set to 7 mm or less, and more preferably to 5 mm or less. In this embodiment, the gap width W3 is set to 2 to 3 mm.

[0044] Furthermore, the height H1 (FIG. 5) of the anti-slip protrusions 12a is not particularly limited. However, if the anti-slip protrusions 12a are made too low, when water or oil gets between the luggage and the anti-slip member 12, it becomes difficult for the water or oil to escape through the gap. In addition, the anti-slip protrusions 12a may become more than just slightly worn. For this reason, the height H1 of the anti-slip protrusions 12a is preferably 0.3 mm or more. The height H1 of the anti-slip protrusions 12a is more preferably 0.5 mm or more, and even more preferably 0.7 mm or more.

[0045] However, if the anti-slip protrusions 12a are made too tall, they may fall over easily. In addition, dirt and the like may easily accumulate in the gaps between adjacent anti-slip protrusions 12a. For this reason, the height H1 of the anti-slip protrusions 12a is preferably 5 mm or less. The height H1 of the anti-slip protrusions 12a is more preferably 4 mm or less, and even more preferably 3 mm or less. In this embodiment, the height H1 of the anti-slip protrusions 12a is set in the range of 1 to 2 mm, and approximately half of this height H1 (a range of 0.3 to 0.7 times the height H1) is reinforced by the reinforcing portion 12b.

[0046] The tip surfaces of the anti-slip protrusions 12a may be rough, but in this case, water or oil may easily get in between the tip surfaces of the anti-slip protrusions 12a and the bottom surface of the luggage. Furthermore, the actual contact area between the tip surfaces of the anti-slip protrusions 12a and the bottom surface of the luggage may become smaller, making it difficult to ensure a large frictional force between the anti-slip protrusions 12a and the bottom surface of the luggage. Therefore, the surface roughness (Ra) of the tip surfaces of the anti-slip protrusions 12a is preferably 30 μm or less. The surface roughness (Ra) of the tip surfaces of the anti-slip protrusions 12a is more preferably 20 μm or less, and even more preferably 10 μm or less.

[0047] The number of anti-slip protrusions 12a provided on the anti-slip portion 12 is not particularly limited as long as it is two or more. However, if the number of anti-slip protrusions 12a is too small, the desired anti-slip effect may not be achieved. For this reason, the number of anti-slip protrusions 12a is preferably three or more. The number of anti-slip protrusions 12a is more preferably four or more, and even more preferably five or more.

[0048] However, if the number of anti-slip protrusions 12a is too large, the dimensions of the anti-slip member for pallets 10 will inevitably increase, which may make the anti-slip member for pallets 10 less user-friendly. For this reason, the number of anti-slip protrusions 12a is usually set to 30 or less. It is more preferable that the number of anti-slip protrusions 12a be 20 or less. In this embodiment, as shown in FIG. 2, six anti-slip protrusions 12a are provided in one row. The anti-slip protrusions 12a can also be provided in multiple rows.

[0049] 3. Placement of anti-slip materials for pallets The anti-slip member 10 for a pallet of the present invention is press-fitted into a recess or hole in the pallet 20 to prevent cargo placed on the top surface of the pallet 20 from slipping relative to the top surface of the pallet 20. Therefore, when using the anti-slip member 10 for a pallet of the present invention for this purpose, it is preferable to arrange the anti-slip member 10 in a balanced manner on the top surface of the pallet 20. For example, by arranging the anti-slip member 10 in the hatched portion (hole 25) in FIG. 6, it is possible to prevent cargo placed on the top surface of the pallet 20 from slipping in a balanced manner. FIG. 6 is a plan view showing an example of the arrangement of the anti-slip member 10 for a pallet to prevent cargo (not shown) from slipping on the top surface of the pallet 20. In this case, the anti-slip member 10 for a pallet is press-fitted downward from the top surface of the top plate 21 of the pallet 20, with the tip surfaces of its anti-slip projections 12a (FIG. 2) facing upward.

[0050] The problem of pallet 20 slippage can also occur between the pallet 20 and the lift hooks inserted into the pallet 20. This problem can be solved when the pallet anti-slip member 10 of the present invention is press-fitted upward from the underside of the top plate 21 of the pallet 20 with the tip surfaces of its anti-slip projections 12a (FIG. 2) facing downward. In this case, it is preferable to arrange the pallet anti-slip member 10 in a balanced manner at a location on the top plate 21 where the lift hooks may overlap. For example, arranging the pallet anti-slip member 10 in the hatched portion (hole 25) in FIG. 7 can prevent the pallet 20 from slipping relative to the lift hooks in a balanced manner. FIG. 7 is a plan view showing an example of the arrangement of the pallet anti-slip member 10 when preventing the pallet 20 from slipping relative to the lift hooks (not shown). [Explanation of symbols]

[0051] 10 Anti-slip material for pallets 11 Press-fit section 11a Latch part 12 Anti-slip part 12a Anti-slip protrusion 12b Reinforcement part 20 palettes 21 Top plate 22 Bottom plate part 23 Side end face 24 outlets 25 Hole

Claims

1. A press-fit type anti-slip member for a pallet that prevents a load placed on the top surface of the pallet from slipping on the top surface of the pallet by being press-fitted into a recess or hole in the pallet, a press-fit portion that is press-fitted into the recess or the hole; a non-slip portion provided on the front side of the press-fitting portion in the press-fitting direction and having a horizontal cross section larger than that of the press-fitting portion; and The entirety of the press-fitting portion and the anti-slip portion is made of an elastic material such as rubber, a thermoplastic elastomer, or a mixture of these with a thermoplastic resin, The JIS-A hardness of the entire part, including the press-fit portion and the anti-slip portion, is 45 degrees or more, A plurality of anti-slip protrusions are formed on the surface of the anti-slip portion opposite to the press-fit portion, The horizontal cross section of each anti-slip protrusion is V-shaped, Reinforcement parts are provided around the base of each anti-slip protrusion to make it difficult for the anti-slip protrusions to fall over, The surface roughness of the surface of the anti-slip protrusion that comes into contact with the luggage is set to 10 μm or less. A press-fit type anti-slip member for pallets.

2. 2. An anti-slip member for a pallet according to claim 1, wherein said elastic material is ethylene propylene diene rubber or nitrile rubber.

3. 3. The anti-slip member for a pallet according to claim 1, wherein an inorganic pigment is added to said elastic material.

4. An anti-slip member for pallets according to any one of claims 1 to 3, wherein the opening angle of the V-shape formed by the horizontal cross section of the anti-slip protrusion is 30 to 150°.

5. A press-fit type anti-slip member for a pallet that prevents the pallet from slipping on the upper surface of the claws of a lift inserted into the pallet by being press-fitted into a recess or hole in the pallet, a press-fit portion that is press-fitted into the recess or the hole; a non-slip portion provided on the front side of the press-fitting portion in the press-fitting direction and having a horizontal cross section larger than that of the press-fitting portion; and The entirety of the press-fitting portion and the anti-slip portion is made of an elastic material such as rubber, a thermoplastic elastomer, or a mixture of these with a thermoplastic resin, The JIS-A hardness of the entire part, including the press-fit portion and the anti-slip portion, is 45 to 80 degrees, A plurality of anti-slip protrusions are formed on the surface of the anti-slip portion opposite to the press-fit portion, The horizontal cross section of each anti-slip protrusion is V-shaped, Reinforcement parts are provided around the base of each anti-slip protrusion to make it difficult for the anti-slip protrusions to fall over, The surface roughness of the surface of the anti-slip protrusion that comes into contact with the luggage is set to 10 μm or less. A press-fit type anti-slip member for pallets.

Images