JPS6023145Y2 - Patterns of eating and cooking utensils - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to the handles of eating and cooking utensils such as spoons, forks, and knives, and in particular, a metal cylindrical handle with protruding ends of synthetic resin pieces at both ends. It relates to the handles of eating and drinking and cooking utensils.

[Conventional technology and its problems]

Conventionally, when attaching a synthetic resin handle to the metal main body of eating and cooking utensils such as spoons, forks, knives, etc., a flat metal core was connected to the metal main body, and a cap was inserted into the metal core. At the same time as supporting it, a circular insertion hole is drilled in the base of the synthetic resin handle, adhesive is applied to the left and right sides of the core metal, the core metal is inserted into the insertion hole, and the metal main body is assembled with adhesive. It was glued and fixed to the base end of the resin handle.

However, in the above configuration, the core metal is flat, but the insertion opening of the synthetic resin handle is circular, so adhesive is applied to the core metal and inserted into the insertion hole, and then the adhesive is applied. It takes time and effort to keep the synthetic resin handle in a normal state until it solidifies, and if the synthetic resin handle is shifted, the disease will become stuck in a slanted position, which has the disadvantage of significantly reducing the product value. Ta.

[Purpose of invention]

The purpose of this invention is to provide eating and drinking and cooking utensils that can eliminate the above-mentioned drawbacks.

[Structure of the idea]

This invention is based on a handle for eating and cooking utensils in which ends of a synthetic resin piece are formed protruding from both ends of a metal cylindrical handle. A pair of synthetic resin pieces with concave and convex joint surfaces facing each other are fitted so that both ends thereof protrude, and the joint surfaces of the synthetic resin pieces are fitted with convexes and convexes to form a joint, and the metal main body is Insert the core metal into the synthetic resin piece on the side beyond the joint,
This joint and the metal core are ultrasonically welded.

[Example of idea]

A small-width core metal 3 is connected to the neck 2 of the stainless steel main body 1,
A plurality of grooves 4 are formed on the left and right sides of this core metal 3.

A pair of synthetic resin pieces 8 consisting of a stainless steel M-shaped handle 5, a short protrusion 6 having the same diameter as the outer diameter of the stainless steel cylindrical handle 5, and an inset part 7 having the same diameter as the inner diameter and half the length of the cylindrical mesh 5. , 8a, a convex portion 11 is formed at one concave portion 10 on the other side of the proximal end of the fitting portion 7, that is, on the joint surface 9.

A pair of synthetic resin pieces 8.8a above and below the stainless steel cylindrical mesh 5
An insertion hole 12 identical to that of the core metal 3 is bored in the lower synthetic resin piece 8 which is to be fitted with the insertion part 7 of the joint surface 9 and the concave part 10 and the convex part 11 of the joint surface 9 are fitted to form a joint part. 12, the core metal 3 is inserted beyond the joint portion 10.11.

In this case, it is preferable to form an insertion hole 13 below the upper synthetic resin piece 8a, and fit the base end of the core metal 3 into the insertion groove 13 so that the core metal 3 reaches the upper synthetic resin piece 8a.

The recesses 10, 11 and the core metal 3 are ultrasonically welded.

This ultrasonic welding is performed in accordance with a conventional method by fixing the stainless steel main body 1 using a jig, a mold 14, etc., applying vibration to the upper end of the upper synthetic resin piece 8a, and performing transmission welding by ultrasonic waves.

[Effect of idea]

In this invention, as described above, a core metal having grooves 4 is continuously provided in the metal main body 1, and unevenness 10.1 is provided at both ends of the metal cylindrical mesh 5.
A pair of synthetic resin pieces 8, 8 with joint surfaces 9 of 1 facing each other
a into the synthetic resin piece 8 on the side of the main body of the metal body beyond the joint part, and insert the core metal 3 into the synthetic resin piece 8 on the metal main body side beyond the joint part. Since the joining part and the metal core are ultrasonically welded, the following effects are achieved.

(1) A pair of synthetic resin pieces 8, 8a are fitted by the unevenness 10, 11, a core metal 3 having a groove 4 is inserted into the bracket, and the core bar 3 having a groove 4 is welded by ultrasonic transmission. There is no need to hold the main body part 1 until it is fixed, and there is no risk of the main body part 1 tilting, resulting in a product with excellent productivity.

However, because it uses ultrasonic welding, welding is completed in about one second.

Further, the welding strength is high, and the synthetic resin pieces 8, 8a and the metal main body 1 are firmly integrated.

(2) Synthetic resin pieces 8, 8a are formed from a short protruding part 6 having the same diameter as the outer diameter of the stainless steel cylindrical mesh 5 and a fitting part 7 having the same diameter as the inner diameter and half the length of the cylindrical mesh 5. Since the fitting part 7 is fitted into the cylindrical mesh 5 and the synthetic resin pieces 8, 8a are welded together with the core metal 3, the synthetic resin pieces 8,8a are visible above and below the stainless steel cylindrical mesh 5, resulting in a good appearance. The fitting between the stainless steel cylindrical mesh 5 and the synthetic resin pieces 8, 8a also becomes strong.

(3) It is easy to manufacture, mass-produced, and can be provided at low cost.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention, and Figure 1 is an overall perspective view;
FIG. 2 is an exploded perspective view, FIG. 3 is a usage state diagram, FIG. 4 is a sectional view of a main part, and FIG. 5 is an overall sectional view. 1...Main part, 3...Core metal, 4...
...Groove, 5...Metal cylindrical mesh, 8, 8a...
...Gakai resin fat piece, 9...Curved joint surface, 10...
- Concave portion, 11... Convex portion.

Claims (1)

[Scope of utility model registration request] In a handle for eating and cooking utensils in which ends of a synthetic resin piece are formed protruding from both ends of a metal cylindrical handle, a core bar having a groove is provided in series in the metal main body, and unevenness is formed at both ends of the metal cylindrical handle. A pair of synthetic resin pieces with joint surfaces facing each other are fitted so that both ends protrude, and the joint surfaces of the synthetic resin pieces are fitted in a concave and convex manner to form a joint part, and the synthetic resin on the metal main body side is fitted. A handle for eating and cooking utensils, characterized in that the metal core is inserted into the piece beyond the joint, and the joint and the metal core are ultrasonically welded.