JP4833649B2 - Cooking utensils - Google Patents

Description

  The present invention relates to patterns of cutlery such as kitchen knives, metal fittings for cutlery such as forks, knives, spoons and other various cooking utensils.

  Handles such as knives are unpreferable because they are spoiled by water intrusion or contaminated with bacteria. For example, when the base end of the blade plate is press-fitted into a wooden handle, there is a risk that the handle end surface or the wood part itself will be contaminated, and two plates are made of plastic or wood material. In a structure in which the base end of the blade plate is clamped with a body, a gap generated in the clamped portion causes contamination (for example, see Patent Document 1). Also known is a structure in which the handle is made of stainless steel and the base end of the blade plate is butt welded to the handle, but it is difficult to weld with accurate dimensional accuracy, and there is a risk of breakage at the weld. (For example, refer to Patent Document 2).

  In general, in normal blades, the base end portion of the blade plate is formed in a plate shape, and the insertion portion of the handle for attaching the base end portion is also formed in a slit-like narrow groove. It is very troublesome to make such a slit-like deep groove by cutting into an integral handle, which is difficult to obtain economically.

  Furthermore, when the base end of the blade plate inserted into the insertion part formed on the handle is made of steel, it can be easily retained using an adhesive or the like. Easy to cause and cause contamination. On the other hand, if the base end portion made of stainless steel is provided, the generation of rust can be suppressed, but since the surface is smooth, it is easy to come off simply by fixing with an adhesive.

In addition, the tip of the handle is provided with a base and a flange, but it is usually made separately from the core inserted into the handle, making the structure complicated and creating gaps and contamination. It becomes the cause of.
JP 2003-145450 A (FIGS. 8 and 9) Utility Model Registration No. 3103210 (FIGS. 1 to 7)

  The problem to be solved by the present invention is to provide a handle for cooking utensils that is simple in structure, free from contamination and bacteria, can prevent breakage and falling off of blade plates, etc., and can be easily and economically manufactured. That is.

  According to the present invention, a lost wax method is used for a core body having a flange portion in which a receiving groove for inserting and welding a base end portion of a main body of a cooking utensil and a shaft portion in which a shaft-side recess is formed on a side surface. And a handle having a receiving hole into which the shaft portion of the core body is inserted, and between the shaft receiving portion of the handle and the shaft portion of the core body, the shaft side recess and the grip. A handle for cooking utensils characterized in that a filling material is filled and solidified between the front end of the handle and the flange portion. Preferably, the core body is made of a stainless material, and the handle is heated. The above-mentioned cooking utensil pattern made of a so-called middle handle made of wood or stainless steel material imparted with antibacterial properties or a plastic handle is provided.

  The present invention is configured as described above, and since the core body in which the flange portion and the shaft portion are integrally formed by the lost wax method is made, the dimensional accuracy is accurate, and welding and insertion operations are easy. If it is formed in a circular shape and inserted into the receiving hole of the handle, the receiving hole may be a round hole, and its processing is very easy. In addition, between the receiving hole and the shaft portion, a hole-side recess formed in the receiving hole, a shaft-side recess formed in the shaft portion, and a filling material such as a molten plastic material between the front end of the handle and the flange portion is solidified. As a result, all the gaps are filled with the filling material, so that the adhesion of bacteria and the occurrence of contamination are prevented, and there is no possibility that the shaft part comes out of the handle.

  Further, since the base end portion of the blade plate or the like is inserted into the receiving groove and welded, it is easy to weld to an accurate position, and it is possible to prevent breakage. If it is made of a material, it is difficult to rust and can be manufactured with high accuracy, and the processing as described above is extremely easy.

  The present invention can be applied to patterns of cutlery such as cutlery, forks, knives, spoons and other various cooking utensils. Thus, the main body (1) of the cooking utensils, in the figure, the base end (2) of the blade plate is connected to the flange (3), and the handle (4) is connected to the flange (3). ing.

  Referring to FIGS. 2 to 5, the flange portion (3) is integrally formed with a shaft portion (5) to constitute a core body (6). The core body (6) is preferably made of a stainless material and manufactured by the lost wax method. The flange portion (3) is formed with a receiving groove (7) into which the base end portion (2) of the main body (1) is inserted, and the base end portion (2) is formed in the receiving groove (7). After insertion, it is welded, annealed and then polished.

  The shaft portion (5) is preferably formed in a circular cross section, but can be formed in a flat plate shape or the like depending on the purpose, and a shaft-side concave portion (appropriate size and shape) is formed on the side surface. 8) is formed. In the figure, the shaft-side recess (8) is provided at one location, but it may be provided at a plurality of locations in consideration of strength. The rear end of the shaft portion (5) is formed in a flat shape, and is provided with a detent portion (9). The detent portion (9) is formed with a notch (10). As will be described later, when the shaft-side recess (8) has a sufficient anti-rotation effect, the anti-rotation portion (9) can be omitted.

  The handle (4) may be a so-called middle handle formed by combining and joining halves made of stainless steel or the like, or a plastic handle or other appropriate handle. It is preferable to use the wood material described in Japanese Patent Application Laid-Open No. 2004-243705 relating to the application of the present applicant. . The handle (4) has a hole corresponding to the shape of the shaft, and in the embodiment shown in the figure, has a slightly larger diameter than the shaft (5) having a substantially circular cross section, for example, an inner diameter of about 0.5 mm in diameter. A circular receiving hole (11) is formed, and a part of the receiving hole (11) is provided with a hole-side recess (12) that is preferably recessed on the side.

  Thus, in order to fix the core body (6) and the handle (4), as shown in FIG. 6 (A), a filling material is filled into the receiving hole (11) of the handle (4). To solidify. Although white cement or the like can be used as the shaft filling material, in the embodiment shown in the figure, a thermoplastic material (13) such as granular or powdery polypropylene is used, and this is filled in the receiving hole. Next, the shaft portion (5) of the core body (6) is heated, and the shaft portion is pushed into the receiving hole (11) to melt the plastic material and overflow from the receiving hole (11). As a result, as shown in FIG. 6B, the molten plastic material is formed between the shaft portion (5) and the receiving hole (11) of the core body (6), the shaft-side recess (8), the hole-side recess ( 12), which flows between the flange portion (3) and the front end (14) of the handle (4), is filled in the gaps, and is then solidified. The plastic material (13) may be removed by polishing or the like. In this way, the core body (6) and the handle (4) can be reliably connected without generating a gap.

The front view which shows one Example which applied this invention to the kitchen knife. FIG. The top view of a core body. Front view of the core body. Side view of the core body. Expansive explanatory drawing which shows a manufacturing process.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body 2 Base end part 3 Flange part 4 Grip handle 5 Shaft part 6 Core body 7 Receiving groove 8 Shaft side recessed part 9 Non-rotating part 11 Receiving hole 12 Hole side recessed part 13 Plastic material

Claims (5)

A core body having a flange portion formed with a receiving groove for inserting and welding a base end portion of the main body of the cooking utensils and a shaft portion formed with a shaft-side recess on the side surface is integrally formed by the lost wax method, A handle having a handle hole into which the shaft portion of the core body is inserted is formed, and a hole-side recess is formed in the receiving hole of the handle handle so as to be recessed sideways. A handle for cooking utensils, wherein a filling material is filled and solidified between the portions, between the shaft-side recess and the hole-side recess , and between the front end of the handle and the flange portion.   The handle of the cooking utensil according to claim 1, wherein the shaft portion of the core body is formed in a substantially circular cross section, and a flat anti-rotation portion is provided at the rear end.   The handle of the cooking utensil according to claim 2, wherein a notch is formed in the detent portion.   The handle of the cooking utensil according to claim 1, wherein the core is made of a stainless material. The handle of the cooking utensil according to claim 1, wherein the handle is made of an antibacterial material by heat treatment.

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