JPH0440921A - Chopping board - Google Patents

Abstract

PURPOSE:To prevent a chopping board from being warped or twisted adhering a chopping board material to both face sides of a core member, and providing a reinforcing material whose elastic modulus is higher than that of a core material on the end part of the core material or its vicinity. CONSTITUTION:In a core material part 23, the end part of its short side is notched, and to the notch part, reinforcing materials 25-28 consisting of an FRP sheet are adhered, and strong registance is given against deformation in the transverse direction of the core material part. As for a wodden chopping board material 21, its grain of wood is arranged in a longitudinal direction, and the material is comparatively strong against the warp in its longitudinal direction and weak in the warp in the transverse direction, but its weak point is compensated by sticking firmly the core material part 23 being strong against the deformation in the transverse direction. Also, since the frame material 29 of a synthetic resin is adhered so as to cover the whole outer peripheral part of the core material part 23, it is prevented that water permeates into the core material part and the adhesion surface, the water resistance property is improved, and it is prevented that the adhesion surface is peeled off. The chopping board is formed by adhering the wooden chopping board material 21, and the chopping board material 22 made of a synthetic resin to one face of the core material part 23 and the other, respectively by using an adhesive and the chopping board which is strong against the deformation as a whole, and in which both faces of the chopping board materials whose materials are different from each other can be used arbitrarily is obtained.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a cutting board for cooking, and relates to a cutting board that has a multi-layer structure, unlike the conventional cutting boards that have a wood or plastic veneer structure. It is.

[Conventional technology] Wooden or plastic veneer construction cutting boards are widely used for cooking, but wooden veneer construction is easy to use because it is light and has a good grip on the back of the knife. Juicy fluids enter through the narrow grooves carved by the blade and the cuts across the board due to capillary action, leaving behind odors and becoming a source of bacteria. On the other hand, cutting boards made of synthetic resin have the advantage of good hygiene due to their good drying properties, but they are heavy and slippery due to their nature, and the synthetic resin and the knife blade do not always fit well, making them difficult to handle. There are problems such as difficulty.

A cutting board with a composite structure in which the top plate is made of wood and the back plate is made of synthetic resin has been proposed, but for cutting boards with a laminated structure in which boards made of different materials are stacked and glued together, it is important to consider the coefficient of linear expansion of the material. There is a problem in that the cutting board may warp or twist due to the expansion and contraction of the materials due to differences in the material and swelling due to moisture absorption.

The present inventors have proposed a technology that solves these problems and makes it possible to create a cutting board with a two-layer structure made of different materials.
It was disclosed as No. 831. This invention is a technique in which a reinforcing material such as fiber-reinforced plastic is provided on both sides of a plate-shaped core material to form an extremely rigid core part, and cutting board materials made of different materials are attached to both sides of the core part.

The present invention, like the above-mentioned inventions, is also durable and resistant to deformation.
To make it possible to provide cutting boards made of different materials on both sides of a cutting board, and to provide a cutting board that is equally resistant to deformation and extremely lightweight even when the cutting boards on both sides of the cutting board are made of synthetic resin. It is something.

[Means for Solving the Problems] The means for achieving the above object, as described in the claims, comprises a core part, and cutting board materials are attached to both sides of the core part. The cutting board is characterized in that the core part is provided with a reinforcing material having a higher modulus of elasticity than the core material at least at one set of opposing ends of the core material or in the vicinity thereof.

In the above structure, the core part has strong resistance to deformation in the width direction or length direction by providing reinforcing materials near the ends of at least one pair of opposing sides of the quadrilateral or each end of the four sides. As a core material, it has relatively high rigidity compared to the cutting board material, so it effectively prevents warping and twisting caused by the elongation, contraction, and swelling of different or similar cutting board materials provided on both sides. It is.

The present invention will be described in detail below based on examples.

[First Example 1] In Figures 1 and 2, wood is used as the core material, and reinforcing materials made of thin plates of fiber reinforced plastic (hereinafter referred to as FRP) are firmly attached to both ends of the short sides of the quadrilateral. FIG. 1 is a perspective view showing an example of a cutting board in which the core material is made of a wooden board on one side and a synthetic resin board on the other surface; FIG. FIG. 2 is a perspective view showing the state of each cutting board material, core material, reinforcing material, and other members of the cutting board shown in FIG. 1 before being attached. In Figures 1 and 2, 21 is a wooden cutting board material, 22 is a synthetic resin cutting board material, 23 is a core material part,
24 is a wooden core material, 25, 26, 27, and 28 are FRP reinforcing materials, and 29 is a synthetic resin frame material.

In this example, as shown in FIG. 2, the core portion 23 is cut out at its short side end, reinforcing materials 25, 26, 27, and 28 made of FRP thin plates are adhered to the cutout portions, and the core portion 23 is cut out. It is designed to provide strong resistance against deformation in the width direction. The wooden cutting board material 21 has grains arranged in the length direction, and is relatively strong against warping in the length direction, but weak against warping in the width direction. These defects are compensated for by firmly adhering the strong core material. In addition, since the synthetic resin frame material 29 is bonded so as to wrap around the entire outer circumference of the core material, it prevents water from penetrating into the core material and the adhesive surface, improves water resistance, and prevents peeling of the adhesive surface. To prevent. The cutting board shown in FIG. 1 is formed by pasting a wooden cutting board 21 on one side of the core part 23 and a synthetic resin cutting board 22 on the other side using adhesive, and the cutting board as a whole is deformed. To obtain a cutting board that is strong against water and allows both sides of cutting board materials made of different materials to be used arbitrarily.

[Second example] 3 and 4 are examples similar to the first embodiment.

The core part 33 is made of wood 3 at both ends of the short side of the wooden core 34.
Similar to the reinforcing material in which thin FRP plates 36 and 37 are affixed to both sides of wood 38, reinforcing materials in which thin FRP plates 39 and 40 are affixed to both sides of wood 38 are firmly affixed to each side. The core portion 33 formed in this manner has sufficient rigidity as described above, and has strong resistance to deformation such as vertical and horizontal curvature and twisting of the cutting board to which the cutting board materials 31 and 32 are attached on both sides. Empower.

[Third Example] FIG. 5 and wCG diagrams show other examples. The core part 43 in this example has a reinforcing material in which a thin FRP plate 46 arranged vertically is attached to a square piece 45 at one end of the short side of the core piece 44, and a reinforcing material in which a thin FRP plate 48 is attached to a square piece 45 at the other end. It is constructed by adhering the reinforcing material affixed to 47. This core part 4
A water-resistant frame material 49 is provided around the outer periphery of the frame material 3, and a wooden cutting board material 41 is attached to one side of the frame material 49, and a synthetic resin cutting board material 42 is attached to the other surface of the frame material 49, and the same effect as described above can be obtained.

Further, since the structure of the reinforcing material is simple, there is an advantage that the weight of the entire cutting board can be reduced as in the above embodiment.

[Fourth embodiment] FIGS. 7 and 8 are also almost the same as the configuration of the above example, but
This is an example in which the structure of the reinforcing material is further complicated in order to obtain more resistance to deformation in the width direction of the cutting board. The reinforcing material is an FRP thin plate 56, 57, 58, 5 made of glass fiber or carbon fiber impregnated with resin on the top, bottom, left and right surfaces of the square material 55.
9 are pasted to form a box shape, and similarly FRP thin plates 61, 62, 63, and 64 are pasted to the four sides of the square material 60, respectively, to the short side ends of the core material 54. It is formed. Water-resistant frame material 65, wooden cutting board material 51
The structure of the synthetic resin cutting board material 52 is the same as in the other examples.

Since the cutting board of this example has a highly rigid reinforcing material with a box structure, a particularly strong resistance to deformation in the width direction of the cutting board can be obtained.

As can be easily seen from this example, the structure of the reinforcing material is not limited to those using FRP as a thin plate, but also materials with a relatively higher elastic modulus than the core material, such as FRP square pipes, metal pipes, seed materials, etc. If so, it can be used arbitrarily.

[Fifth Embodiment] Figs. 9 and 10 show an example using a different core member, and unlike the above example, a reinforcing member is provided in the length direction of the core member. The core part 73 has FRP thin plates 76 and 77 on the upper and lower surfaces of the square member 75 at one end of the long side of the core member 74, respectively.
A reinforcing material to which FRP thin plates 79 and 80 are affixed is firmly adhered to the other end, and a reinforcing material to which FRP thin plates 79 and 80 are similarly affixed to the upper and lower surfaces of the square beam 78 is firmly adhered to the other end. The cutting board material in this example is provided with a synthetic resin cutting board material 71 on one side and a synthetic resin cutting board material 72 on the other side. When the cutting board materials forming both sides are made of the same material as in this example, there is no difference in coefficient of linear expansion, so the reinforcing material in the width direction can be omitted.

[Sixth Embodiment] FIGS. 11 and 12 show examples in which the structure of the core portion is made more complicated. The core portion 93 is a core material 94 with reinforcing materials provided at the ends of each of the four sides, and is an example of providing strong resistance to any deformation in the width direction and length direction of the cutting board.

The reinforcing materials include FRP thin plates 96.97 on both sides of the square timber 95 and FRP thin plates 102.10 on both sides of the square timber 101.
3 is attached to both ends of the long side of the core material 94, one in which FRP thin plates 105 and 106 are provided on both sides of the square material 104, and one in which FRP thin plates 99 and 100 are provided on both sides of the square material 98. It consists of two pieces attached to each end of the short side. Since such a core part has an extremely strong resistance to deformation in the length direction and width direction, the core part 93 exhibits high rigidity as a whole, and has a wooden cutting board material 91 on one side,
The entire cutting board with the synthetic resin cutting board material 92 attached to the other side is prevented from deforming in any direction.

Reference numeral 107 is a waterproof frame material similar to that described above, and has the same effect as described above.

[Seventh Embodiment] FIGS. 13 and 14 also show examples in which the structure of the core portion is complicated. The core material part 113 is a core material 114 formed of four pieces of wood that are combined and glued so that the wood grain directions are perpendicular to each other.
A reinforcing material formed by bonding an FRP thin plate 116 to one side of a square material 115 is attached to one end of the short side of the core material, and a reinforcing material formed by a similar square material 117 and an FRP thin plate 118 is attached to the other end. They are made up of pieces that are glued together.

Since the core material 114 in this example exhibits considerable rigidity by itself, the structure of the reinforcing material can be simplified as in this example. A waterproof frame material 119 is provided on the outer periphery of this core portion l13, and a wooden cutting board material 111 is provided on the negative side of the frame material 119.
The cutting board obtained by firmly adhering the synthetic resin cutting board material 112 to the other side is also lightweight and resistant to deformation, and can be used on either side as desired.

[Eighth Example] Factor 15 to FIG. 16 are examples in which the structure of the reinforcing material is different from the seventh example. The core part 123 consists of a core material 124 made of four pieces of lightweight wood glued together so that the wood grain directions are perpendicular to each other, and a highly elastic FRP square at one end of the short side of the core material. It consists of a reinforcing material made of a vibrator 125 and a reinforcing material made of a similar square pipe 126 adhered to the other end. In this example as well, the core material has strong rigidity and is resistant to deformation.

[Ninth Embodiment] FIGS. 17 to 18 also show configuration examples similar to those of the seventh and eighth embodiments, but the reinforcing material in this example is made of wood with higher elasticity than the core material 134. This is an example. The core material 134 in this example is made by combining four pieces of lightweight wood such as cedar or spruce wood and bonding them so that the grain directions are perpendicular to each other.
．． 136 is adhered to form the core member part 133.

This example also provides the effect of the n machine.

[Effects of the Invention] According to the present invention, as explained in detail in the above embodiments, cutting boards made of different materials can be placed on both sides of the cutting board, and deformations such as warping can occur even during long-term use. It becomes possible to obtain a sanitary and robust cutting board with a laminated structure without causing peeling or peeling.

Furthermore, when the present invention is applied to a cutting board in which cutting boards made of the same material such as synthetic resin are arranged on both sides of the cutting board, it can be made much lighter than a cutting board with a single synthetic resin structure.
It has the advantage of being able to control its thickness and length freely, and even if it is made thin or long, it will not warp like conventional synthetic resin cutting boards, and even if it is thin and long, it will not bend at the edge of the sink. It has the advantage of being able to be used as a bridge.

engraving of drawings Figure l

[Brief explanation of the drawing]

Figures 1 to 18 are views showing embodiments of the present invention, and Figures 1, 3, 5, 7, 9, 11, 1315, and 17 are perspective views of the completed cutting board, and Figures 2.4 .6.8.
Figures 10, 12, 14, 16, and 18 are perspective views for explaining each member before pasting. ′! J2 Agent Patent Attorney Keio Yoshizawa Keio Yoshizawa ) September 26, 1990

Claims (1)

[Scope of Claims] 1. A cutting board having a core portion and cutting board materials attached to both sides of the core portion, the core portion comprising at least one set of opposing ends of the core material. Or, a cutting board characterized in that a reinforcing material having a higher modulus of elasticity than the core material is provided near the reinforcing material. 2. The cutting board according to claim 1, wherein the reinforcing material is a thin plate of fiber-reinforced plastic. 3. The cutting board according to claim 1, wherein the cutting board material on one side is made of wood and the cutting board material on the other side is made of synthetic resin.