JP2511012Y2 - Hand tool striking part mounting structure - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention applies a hand to a hand tool having a handle such as a scraper for painting, a hand-held knife, etc.
The present invention relates to a mounting structure for a striking portion that is hit by a hammer or the like.

(Problems to be solved by conventional techniques and devices) Painting scrapers, handheld knives, etc. generally have wooden handles, and while gripping the handles to perform cutting, scraping, and other operations, It is used by striking another object with the handle base, or by striking the handle base with a hammer or the like to perform the original work such as cutting or scraping. For this reason, a hitting portion is formed at the base of the handle in the hand-held tool. As for the structure of the striking part, a ring-shaped wig is attached to a wooden handle, which is generally found in chisel, or thick gold such as that found in knives (especially electric knives) is attached. Regarding a hand-held tool to be mounted as a striking part, the conventional mounting of a heavy-duty striking part is done by welding thick gold to the base of the tool body, fixing it with screws, etc. There is. However, among the above-mentioned fastening means, by welding, for example, when a wooden handle is formed so as to have the same thickness as the thickness of thick gold, the main body and the heavy gold cannot be welded at the paragraphs. However, the welding point is limited to the outer peripheral surface portion of thick gold. Further, the above-mentioned welding portion requires finishing grinding and polishing work, and the strength of the welding portion may be lowered depending on the degree of finishing, and the above-mentioned finishing operation becomes very troublesome work. Furthermore, fastening means such as screwing and tacking are locations where they are always strongly hit, and therefore have a problem in strength.

Therefore, the present proposal proposes a mounting structure in which the striking part is easy and can be firmly mounted.

(Means for Solving the Problem) The striking part mounting structure for a hand-held tool according to the present invention includes a recess into which the base end of the tool body can be fitted, and a through hole penetrating from the surface side to the recess. The striking member is formed, the base end of the tool body is fitted into the recess, and welding is performed in the through hole to integrate the tool body and the striking member.

(Operation) Since the main body is fitted in the recess of the striking member, even if a strong impact is applied to the striking part, the striking force does not act in the direction to separate the two, so the strength is excellent and the welded part Even if the surface treatment is performed, the strength of the welded portion does not change, so that the surface treatment work can be easily performed.

(Example) Next, an example of the present invention will be described.

The example shows a coating scraper. The paint scraper consists of a thin metal plate body 1, a handle 2, and a striking member 3.
The main body 1 is composed of a spatula-shaped cutting edge portion 11 and a base portion 12 on which the handle 2 is mounted. The base portion 12 is provided with a stud hole 13. The handle 2 has a wooden handle and is attached to the base 12 with the tack 21. The striking member 3 is a thick metal base
A recess 31 into which the tail end of 12 can be fitted is provided, and a through hole 32 communicating with the recess 31 is bored from the surface side.

Then, the wooden handle 2 is attached to the base portion 12 of the main body 1 with the tack 21 and the tail end of the base portion 12 is fitted into the recess 31 so that the main body 1 and the striking member 3 are welded in the through hole 32. The through hole 32 is filled with a welding material or a brazing material.

Therefore, the main body 1 and the striking member 3 are integrated, and can sufficiently withstand the striking at the striking portion and the striking at the striking portion. It should be noted that the present invention is not limited to the above-mentioned embodiment, but is applicable to knives and other hand tools, and the shape of the main body and the base thereof may be rod-shaped instead of thin plate-shaped. Of course, the concave portion corresponds to the shape of the base portion.

(Effect of the Invention) As described above, in the present invention, in the hand-held tool having the striking member at the base end, the recess in which the base end is fitted to the striking member forms the through hole communicating with the recess, The base end portion is fitted and the both are welded in the through hole, and it has sufficient strength against impact and can be easily processed after welding.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, FIG. 1 is an exploded perspective view of each member, FIG. 2 is a sectional view of an essential part, and FIG. 3 is an overall perspective view. 1 is main body 11 is blade pair 12 is base 13 is rivet hole 2 is handle 21 is stud 3 is striking member 31 is recess 32 is through hole

Claims (1)

(57) [Scope of utility model registration request] 1. A striking member having a recess into which a base end of a tool body can be fitted and a through hole penetrating from the surface side to the recess is formed, and the base end of the tool body is located in the recess. A striking part mounting structure for a manual tool, characterized in that the striking part is integrated with the striking member by fitting and welding in the through hole.