JP2990080B2 - Chopping board - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin cutting board.

[0002]

2. Description of the Related Art A conventional resin chopping board is basically a single piece having no hollow interior. In addition, a cutting board having a hollow structure by blow molding is also known.

[0003] The above-mentioned blow-molded hollow plate is lightweight and convenient to handle, but its thickness is thin and its central portion is dented due to aging, making it difficult to use for cutting. Further, in order to solve the above-mentioned drawback, a foaming material is injected into the inside, and the foam is internally foamed using steam heat or the like to maintain a predetermined strength. However, there are difficulties in manufacturing cost and production volume.

[0004] In addition, in the case of a one-piece chopping board, the whole weight is large and it is inconvenient to handle, and when an antibacterial function is not provided, an antibacterial agent is applied to the surface treatment. It is realized by the treatment, but there is a problem that the antibacterial layer on the surface is worn due to aging and the antibacterial function is not exhibited. Therefore, the present invention proposes a new board that is appropriately light in weight, can cope with aging, and is easily manufactured.

[0005]

The cutting board according to the present invention comprises an upper and lower plate and a core plate. Each of the upper and lower plates is formed into a flat container shape by using an antibacterial resin, and each edge of each of the upper and lower plates is attached to each other. Forming tightly fitting projections and narrow grooves, and protruding tightly fitting connecting parts which are fitted to each other at appropriate locations on the inner surfaces of the upper and lower plates, and forming the core plate with styrene foam resin. An upper and lower through-hole is formed at a position corresponding to the tight fitting connection portion of the upper and lower plates, the core plate is provided between the upper and lower plates, and each edge of the upper and lower plates and the tight fitting connection portion are connected to form the core plate. It is characterized by being sealed inside the upper and lower plates.

Accordingly, since the hollow portions in the upper and lower plates are filled with the core plate, the center portion of the plate does not dent due to use, and its manufacture is easy. In particular, since the upper and lower plates have an antibacterial function in the material itself, it is possible to solve the deterioration of the antibacterial function due to aging.

[0007]

Next, an embodiment of the present invention will be described. The cutting board shown in the embodiment includes a lower board 1, an upper board 2,
The lower plate 1 is made of polypropylene mixed with an appropriate antibacterial agent, is formed in a flat container shape by injection molding, and has a structure in which an edge 12 is formed around a bottom plate 11. The narrow groove 13 is formed in the upper end surface of the edge 12, and a concave portion 14 is provided in the inner surface of the narrow groove 13. Connection part 15
And a recess 16 is provided on the inner surface of
Is provided. The recesses 14 and 16 are undercut portions of the molding die, but can be molded by forming a cross-sectional shape that allows forcible removal.

The upper plate 2 is made of the same material and the same forming means as the lower plate 1, and is formed by turning the lower plate 1 upside down into a flat container shape. 21
The lower part of the edge 22 is provided with a projection 23 having a projection 24 which fits tightly into the narrow groove 13 and fits into the recess 14. At a position corresponding to the close fitting connection portion 15 on the back surface of the plate portion 21, a close fitting connection portion 25 provided with a convex portion 26 which fits tightly in the close fitting connection portion 15 and which is fitted to the concave portion 16 on the outer peripheral portion. It is installed below.

The core plate 3 is a plate-like body formed of styrofoam resin, and has upper and lower through holes 31 through which the tight fitting connection portions 15 are inserted at positions corresponding to the positions where the tight fitting connection portions 15 and 25 are formed. It is provided.

When the upper and lower plates 1 and 2 are pressurized in the vertical direction with the core plate 3 inside, the projections 2 are inserted into the narrow grooves 13.
3 is tightly fitted, the close fitting connection 25 of the upper plate 2 is attached to the tight fitting connection 15 of the lower plate 1, and the projections 24
However, the convex portion 26 is fitted into the concave portion 16 and the upper and lower plates 1 and 2 are fitted and killed with each other, and are integrated with the core plate 3 sealed therein. Needless to say, the thickness of the core plate 3 is set to be large enough to be in close contact with the back surfaces of the upper and lower plates 1 and 2 when the upper and lower plates 1 and 2 are connected.

[0011]

As described above, the present invention comprises a flat container-shaped upper and lower plate and a core plate, and a close fitting connection portion provided at each edge of each of the upper and lower plates and at an appropriate number of places inside. Upper and lower plates are connected and integrated, and the core plate is internally sealed. And the antimicrobial agent is mixed into the upper and lower plates themselves, so that the antimicrobial function does not deteriorate due to aging. The antimicrobial action has many advantages such as being possible by a simple means of mixing the antimicrobial agent into the book material itself during the injection molding of the upper and lower plates.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of an embodiment of the present invention.

FIG. 2 is a sectional view of the main part (before assembly).

FIG. 3 is a sectional view of the essential part (after assembly).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lower plate 11 Bottom plate part 12 Edge part 13 Thin groove part 14 Concave part 15 Close fitting connection part 16 Concave part 2 Upper plate 21 Upper plate part 22 Edge part 23 Projection part 24 Convex part 25 Close fitting connection part 26 Convex part 3 Core plate 31 Top and bottom Through hole

Claims (1)

(57) [Claims] 1. An upper and lower plate and a core plate, wherein each of the upper and lower plates is formed into a flat container shape with an antibacterial resin, and a projection and a narrow groove are formed on each edge of the upper and lower plates so as to be closely fitted to each other. In addition, at appropriate locations corresponding to the inner surfaces of the upper and lower plates, closely fitting connection portions which are fitted and killed with each other are protruded, and the core plate is formed of styrene foam resin, and the upper and lower plates correspond to the tight fitting connection portions. The core plate is provided between the upper and lower plates, and each edge of the upper and lower plates and the tightly-fitted connecting portion are connected to each other, and the core plate is sealed inside the upper and lower plates. And a board.