JP6887292B2 - Pallet anti-slip - Google Patents

Description

The present invention relates to a pallet used for transporting and storing luggage, and prevents the luggage placed on the pallet from slipping on the outer surface of the pallet or the claws of a forklift on the outer surface of the pallet. It is about anti-slip equipment.

The pallets (flat pallets) used for transporting and storing luggage include a rectangular top plate that forms a loading surface for luggage, a rectangular bottom plate that forms a ground plane below the top plate, and the like. It is composed of a plurality of pillar members that connect the top plate and the bottom plate to each other at the corners, the center, and the middle of the edges.

In order to transport and store cargo on such a pallet, the cargo is placed on the top plate and then transported to a predetermined place using a forklift. Normally, in this type of pallet, the cargo is placed on the top plate. From the viewpoint of preventing the cargo on the pallet from slipping on the outer surface of the pallet and the forklift's claws from slipping on the pallet, the pallet has a non-slip device called a glomet that increases frictional resistance and prevents them from slipping. It is scattered in each place.

As prior art in this regard, for example, Patent Document 1 discloses a grommet mounting system in which a driving hammer is provided with a driving hammer device and a gripping device for gripping a grommet accommodating member capable of accommodating a large number of grommets. .. Further, in Patent Document 2, a plurality of slits extending over the entire length in the height direction of the leg member are formed in the leg member of the grommet main body made of a hard synthetic resin, and the leg member is provided with a plurality of auxiliary legs. Further, in Patent Document 3, the grommet configured to be divided into two forms a fitting recess with a protrusion which is internally fitted into the hollow space of the non-slip elastic member on the deck of the synthetic resin pallet. When an elastic member for slip prevention is pushed into the inner peripheral wall portion of the fitting recess and the outer peripheral wall portion of the protrusion, the diameter gradually increases toward the bottom side, and the annular peripheral wall portion is gradually elastically deformed outward. Each graded structure is disclosed.

Japanese Unexamined Patent Publication No. 11-151625 Japanese Unexamined Patent Publication No. 2005-263261 Jikkai Sho 55-176127

By the way, the above-mentioned prior art has the following defects, and improvement thereof has been required.

That is, the grommet mounting system disclosed in Patent Document 1 is designed so that the grommet has an appropriate press-fitting size, and the grommet is press-fitted into the mounting location of the grommet (tight fitting), but at the time of driving the grommet. There is a concern that the grommet may be tilted at the mounting location to make it difficult to drive, causing equipment troubles and quality troubles.

Further, although the technique disclosed in Patent Document 2 aims to reduce the press-fitting load of the grommet and prevent it from falling off from the pallet, in such a technique, a molding die for molding the pallet body and the grommet There is a problem that the mold becomes complicated and the mold cost rises.

Further, although the technique disclosed in Patent Document 3 is said to be a technique having little influence on the die at the time of "die cutting" in the pallet manufacturing process, it is used in the die structure for molding the recess on the pallet side. Since the reverse gradient is given, the mold is inevitably worn if it is repeatedly produced for a long period of time, and if the pallet production is continued as it is, the effect of preventing the anti-slip tool from falling off will be impaired. ..

An object of the present invention is a non-slip tool that can be reliably attached to a pallet without inviting complication of the molding die used for molding the non-slip tool or the pallet or causing mounting troubles such as tilting. It is in the place to propose.

INDUSTRIAL APPLICABILITY The present invention is scattered on a pallet used for loading and transporting a load, and the load loaded on the pallet slides on the outer surface of the pallet, or the claw portion of a forklift is on the outer surface of the pallet. It is a non-slip device that prevents slipping.
A body inserted into a recess provided in the pallet and a head integrally provided with the body and having a top surface exposed to the outer surface of the pallet so as to be in direct contact with the luggage or the claws of a forklift. Prepare,
At least one annular convex portion that orbits continuously or intermittently around the body at the boundary between the body and the head and is press-fitted into the recess to hold the body itself in the recess. It is a non-slip tool for a pallet, which is characterized in that the above is arranged.

In the anti-slip tool of the pallet having the above configuration, the body faces the inner wall surface of the concave portion with a very small gap, and when the annular convex portion is press-fitted, the annular convex portion is pressed. It is desirable to have a guide wall that guides the pallet in the recess. Further, it is desirable that the annular convex portion has a cross-sectional shape in which the press-fitting resistance increases toward the head.

According to the anti-slip tool of the present invention having the above configuration, the annular convex portion provided at the boundary between the body and the head is press-fitted into the concave portion of the pallet to be fixed and held (of the body portion of the anti-slip tool). The whole is not press-fitted), and the press-fitting resistance in the attachment of the anti-slip tool can be reduced.

Further, according to the anti-slip tool of the present invention, the anti-slip tool can be molded only by using a halved mold in which the portion where the annular convex portion is formed is a parting line (the anti-slip tool is made of a single material). It can be molded with), and the mold structure is not complicated. Further, it is not necessary to provide a reverse gradient or a protrusion for locking the anti-slip tool in the recess of the pallet to which the anti-slip tool is attached, and the mold structure for forming the pallet is also simplified. Is possible.

Further, according to the anti-slip tool of the present invention, since the body has a guide wall, the inclination of the anti-slip tool is suppressed, and smooth press-fitting into the recess of the pallet becomes possible.

Further, according to the non-slip tool of the present invention, the press-fitting resistance increases as the annular convex portion toward the head, for example, the anti-slip tool has a tapered cross-sectional shape, so that the non-slip tool is placed in the concave portion of the pallet. When attaching, it is possible to press-fit in a state of relatively low resistance, and after the attachment of the anti-slip tool is completed, the anti-slip tool does not easily come out from the recess of the pallet.

It is a perspective view which showed typically the appearance of the anti-slip device according to this invention. (A) is a view showing a plane of FIG. 1, (b) is a view showing a side surface, and (c) is a view showing a bottom surface. It is a figure which showed the AA cross section of FIG. 2 (a). FIG. 5 is an external perspective view schematically showing an example in which the anti-slip tools shown in FIGS. 1 to 3 are scattered on the outer surface of the pallet. It is a figure which showed the attachment state of the conventional anti-slip tool. It is a figure which showed the attachment state of the anti-slip device according to this invention.

Hereinafter, the present invention will be described in more detail with reference to the drawings.
FIG. 1 is a perspective view schematically showing the appearance of the anti-slip tool of the pallet according to the present invention, and FIGS. 2 (a) to 2 (c) show the plane, side surface and the side surface of the anti-slip tool shown in FIG. It is the figure which showed the bottom surface, and FIG. 3 is the figure which showed the AA cross section of FIG. 2 (a). Further, FIG. 4 is an external perspective view schematically showing an example in which the non-slip tools shown in FIGS. 1 to 3 are scattered on the pallet.

As the pallet to which the anti-slip device according to the present invention is attached, a pallet made of synthetic resin such as a flat pallet is used. In addition, the anti-slip tool is made of low-density polyethylene (LDPE), urethane rubber, etc. in order to enhance the anti-slip effect (the size is about 20 to 40 mm in diameter in the case of a cylindrical shape). The height is set to about 10 to 30 mm), but the pallet and the anti-slip tool are not limited to the above materials. Further, the anti-slip tool is shown here as an example having a cylindrical shape, but the shape can be a rectangular shape, a polygonal shape, or the like, and the shape and size can also be applied. It can be changed arbitrarily.

Reference numeral 1 in the figure is a body of the non-slip tool, and 2 is a head integrally provided on the body 1. The body 1 is shown as an example of a tubular body having a recess 1a that is open downward (see FIG. 3). Further, the head 2 is shown as an example of a disk-shaped head having an opening 2b connected to the recess 1a in the central portion of the top surface 2a.

The body 1 is inserted into a recess 3a (see FIG. 4) provided in the pallet 3, and when the body 1 is inserted into the recess 3a, the top surface 2a of the head 2 is outside the pallet 3. It will be exposed from the surface (see FIGS. 4 and 6), and the top surface 2a will come into direct contact with the luggage or forklift claws (not shown) placed on the pallet 3 to prevent slippage between them. It is designed to prevent. When the body 1 is inserted into the recess 3a of the pallet 3, there may be a very slight gap t (rattling may occur) between the body 1 and the inner wall surface of the recess 3a, for example, a gap t of more than 0 mm and 0.5 mm or less. It is composed of a guide wall 1b facing each other with a fitting tolerance set to a degree not high (see FIG. 6), and an inverted truncated cone-shaped tapered wall 1c connected to the guide wall 1b and tapered toward the lower part. .. The recess 3a to which the anti-slip device is attached is also provided at the opening edge portion into which the claw portion of the forklift is inserted (not shown).

Further, reference numeral 4 is an annular convex portion provided at the boundary between the body 1 and the head 2 and continuously orbiting around the body 1. The annular convex portion 4 has a function of being press-fitted into the recess 3a to prevent the body 1 itself from coming off and being held in the recess 3a when the body 1 of the anti-slip tool is inserted into the recess 3a of the pallet 3.

The annular convex portion 4 is integrally molded with the body 1 and the head 2, and may be formed to orbit intermittently around the body 1, or the axial core L of the body 1 (see FIG. 1). It is also possible to use a plurality of those provided at intervals along the).

The annular convex portion 4 has a press-fitting resistance that increases toward the head 2, for example, a tapered lip shape, and a wedge-shaped (gradient) cross-sectional shape in which the thickness increases toward the head 2. Or those having a semicircular cross-sectional shape, etc. can be applied. According to the annular convex portion 4, the anti-slip tool can be inserted into the recess 3a of the pallet 3 without excessively increasing the press-fitting resistance, and after the anti-slip tool is inserted into the recess 3a. Will be maintained at a pressure input (fitting force) that does not easily slip out of it. The dimension w of the annular convex portion 4 is preferably set to about 2 to 5 mm, and the maximum protrusion allowance e is preferably set to about 0.5 to 1.0 mm (see FIG. 3).

The entire conventional anti-slip device of this type is usually press-fitted into the recess 3a of the pallet 3, and depending on the mounting condition, the anti-slip device may be used as shown in FIG. In some cases, the recess 3a may be tilted, and in this case, not only the mounting work may be hindered, but also the function of the anti-slip tool may not be effectively exhibited. However, the anti-slip according to the present invention. As shown in FIG. 6, the tool is guided by the guide wall 1b when the annular convex portion 4 is press-fitted into the recess 3a of the pallet 3, so that the anti-slip tool is not attached at an angle in the recess 3a. Moreover, since the guide wall 1b is located with a very small gap t from the inner wall surface of the recess 3a, it has an advantage that the press-fitting resistance can be reduced. The length H of the guide wall 1b can be set to 30 to 80% of the length H1 of the body 1.

Although not shown, the anti-slip tool of the present invention has a plurality of point-like protrusions, linear protrusions arranged in a grid pattern, or a plurality of concentric arrangements on the top surface 2a of the head 2. It is also possible to provide an annular protrusion of the above, which can further increase the frictional resistance with the luggage or the claw portion.

Further, around the body 1, a plurality of vertical ribs having the same length as the guide wall 1b can be provided instead of the guide wall 1b, and the anti-slip tool is attached to the recess 3a of the pallet 3. At that time, it is also possible to guide by this vertical rib.

The anti-slip tool according to the present invention is basically configured as a molded product made of a single raw material, and the mold structure thereof can be simplified in molding the pallet and the anti-slip tool.

According to the present invention, it is possible to provide a non-slip tool that can be reliably held in a recess of a pallet while reducing press-fitting resistance. Further, according to the present invention, it is possible to provide a non-slip tool that enables simplification of a mold used when molding a pallet or a non-slip tool.

1 Body 1a Recess 1b Guide wall 1c Tapered wall 2 Head 2a Top surface 2b Opening 3 Pallet 3a Recess 4 Circular convex t Gap

Claims (2)

Prevents the luggage loaded on the pallet, which is scattered on the pallet used for loading and transporting the luggage, from slipping on the outer surface of the pallet, or the claws of the forklift on the outer surface of the pallet. It ’s a non-slip device,
A body inserted into a recess provided in the pallet and a head integrally provided with the body and having a top surface exposed to the outer surface of the pallet so as to be in direct contact with the luggage or the claws of a forklift. Prepare,
At least one annular convex portion that orbits continuously or intermittently around the body at the boundary between the body and the head and is press-fitted into the recess to hold the body itself in the recess. Ri name was arranged,
The annular convex portion has a wedge-shaped cross-sectional shape in which the thickness increases toward the head, a tapered lip shape, or a semicircular shape as a cross-sectional shape in which the press-fitting resistance increases toward the head. A pallet non-slip tool characterized by having a cross-sectional shape. The body has a guide wall that faces the inner wall surface of the concave portion with a very small gap and guides the annular convex portion in the concave portion when the annular convex portion is press-fitted. The pallet anti-slip device according to claim 1.

Images