JPH031396Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a leg member for an assembly type pallet, which is constructed by assembling the leg member to a deck board made of plastic, paperboard, or the like.

[Prior Art] Conventionally, this type of assembly-type pallet has the ability to attach leg members to a deck board at the site of use.
It is widely used because it is easy to repair by replacing each member.

[Problems to be solved by the invention] The leg members of assembly-type pallets have traditionally been made of plastic injection molding.
Injection molding has the drawback of increasing costs and being unsuitable for producing a wide variety of products in small quantities.

Therefore, the applicant first attempted to manufacture the plastic by blow molding it.

However, as shown in FIG. 4, such a leg member formed by hollow molding of plastic has a structure consisting of a leg body 24 consisting of a hollow body 26 and a neck protruding from its end surface, and a stopper body 25. Although it is a thing,
In the leg member of this structure, when receiving a large load, the neck 2
7 was found to have the disadvantage of sinking into the body 26 or breaking.

In view of these drawbacks of hollow-molded leg members, the present invention has been designed to prevent the neck from collapsing into the body even under heavy loads, to have sufficient load-bearing strength, and to be able to withstand deck boards. The object of the present invention is to provide a pallet leg member that is easy to attach and detach.

[Means for Solving the Problems] The present invention achieves the above object with the following configuration.

That is, the leg member is composed of a leg member having a large-diameter body and a small-diameter neck, and a plug that is screwed onto the neck, and the plug has a large-diameter body and a neck. This is a leg member of a pallet characterized in that a flange-like top plate is formed between which a deck board is sandwiched, and a support body that comes into contact with the top plate is provided inside the script body.

[Function] Since the leg member of the pallet according to the present invention is provided with a support body that comes into contact with the top plate inside the script body, the base of the neck part is supported by the support body on the bottom wall of the script body,
Even if a load is applied to the leg members from the deck board, the neck part will not be deformed by sinking into the torso part. Also, to attach the leg members to the deck board, simply screw the stopper onto the neck so that the deck board is sandwiched between it and the body, and to remove the leg member from the deck board, turn the stopper in the opposite direction. Just remove it from the neck.

[Example] Embodiments of the present invention will be described with reference to the drawings.

FIG. 1 shows an example of a single-sided pallet. 1 is a palette, and this palette 1 is
It is an assembly type in which leg members 3 are assembled to the periphery and center of a deck board 2 made of plastic, paperboard, or the like.

As shown in FIG. 2, the leg member 3 consists of a script body 4 and a plug body 5, and the script body 4 and the plug body 5 are
They are constructed from plastic by blow molding and injection molding, respectively. The script body 4 has a large diameter body 6
It consists of a small-diameter neck portion 7 protruding from one end surface of the body portion 6, and a thread 8 is formed on the outer peripheral surface of the neck portion 7. The plug body 5 has a top plate 9 that spreads in a flange shape.
The top plate 9 has a diameter approximately equal to the diameter of the body 6, and the inner surface of the cylinder 11 has a thread 1 that threads into the thread 8 of the neck 7.
0 is formed. 12 is a tubular support body, and this support body 12 is a bottom surface 1 of the top plate 9 of the stopper body 5.
3 and the inner surface of the bottom wall 14 of the script body 4, and abuts against the top plate 9 to support it on the bottom wall 14 of the script body 4. The support body 12 has an outer diameter of the neck portion 7.
It is formed to have an inner diameter equal to or slightly smaller than the inner diameter of the top plate 9, and is fixedly supported by fitting protrusions 15 and 16 protruding from the lower surface 13 of the top plate 9 and the inner surface of the bottom wall 14.

The leg member 3 is made of polyethylene, polypropylene,
The leg member 3 is made of thermoplastic plastic such as vinyl chloride, polyethylene terephthalate, polybutylene terephthalate, etc., and is manufactured by blow molding, injection molding, extrusion molding, etc.
Preferably, it is constructed of high impact polypropylene.

FIG. 3 shows another example of what has been described above. This embodiment is a double-sided pallet having deck boards 2 on the upper and lower surfaces, and the leg members 3 have necks 7 of the leg members 4 projecting from both end surfaces of the body 6.

Next, the measurement results of one specific example will be compared with those of a comparative product.

(a) Measurement conditions Melt flow index 0.5g/10min (JIS K6758) Flexural modulus 11000Kg/cm ² (JIS K7203, 23℃),
A load of 200 kg was applied to a leg member made of polypropylene with an impact strength of 10 kg cm/cm (JIS K7110, 23°C) and a plug body with the following dimensions was assembled, and the amount of deformation of the script body was measured. Further, for comparison, similar measurements were performed on a leg member of an equivalent product without a support.

(b) External shape of body of script body: 100φ, height: 125mm (c) External shape of cylindrical body of stopper: 16φ, wall thickness: 2mm (d) Support: Metal pipe with wall thickness of 2mm (e) Measurement results In the example according to the present invention, the amount of deformation was 0.1 mm. On the other hand, in the comparison product, the amount of deformation was 6 mm, which shows that the product according to the present invention is much superior to the comparison product.

[Effects of the invention] The present invention is a leg member consisting of a script body having a large-diameter body and a small-diameter neck, and a plug that is screwed onto the neck, and the plug has a large-diameter neck. A flange-shaped top plate is formed between the deck board and the body, and a support body that comes into contact with the top plate is provided inside the script body, so even if a heavy load is applied, the neck part will not be damaged. The body will not collapse and deform,
It has sufficient load-bearing strength and can be easily attached to and detached from the deck board.

[Brief explanation of the drawing]

Fig. 1 is an overall perspective view of the pallet according to the present invention;
Fig. 2 is a longitudinal sectional front view of the main part of the leg member, Fig. 3 is a longitudinal sectional front view of the leg member showing another embodiment, and Fig. 4 is a sectional view of the leg member for explaining the problem of the present invention. be. 1...Palette, 2...Deck board, 3...
Leg member, 4... Script body, 5... Plug body, 6... Body, 7... Neck, 8... Screw, 9... Top plate, 10
...Thread, 11...Cylinder, 12...Support, 13
...Bottom surface of the top plate, 14...Bottom wall, 15, 16...
mating protrusion.

Claims (1)

[Scope of utility model registration request] A leg member consisting of a script body having a large-diameter body and a small-diameter neck, and a stopper that is screwed onto the neck, and the stopper has a deck board sandwiched between it and the large-diameter body. 1. A pallet leg member, comprising a flange-shaped top plate and a support member provided inside the base plate to come into contact with the top plate.