JP3064456U - Wood screw with locking function - Google Patents

Abstract

(57)【要約】 【課 題】 簡単な構造で製造が容易であり、しか
も、ねじ込み作業が容易な上に、締付け後、緩みが生じ
ない緩み止め機能を有する新たな構造を付与した木ねじ
を提供すること。 【解決手段】 先細状のねじ本体１の外面にねじ込み用
の螺旋凸条2aによる螺糸部２を設けると共に、前記凸条
2aによる螺糸部２の谷に、緩み止め機能を果す凹部の溝
3aを、前記螺旋凸条2aと逆ねじをなす螺旋状３に設け
た。 (57) [Summary] [Problem] A wood screw with a new structure that has a simple structure, is easy to manufacture, is easy to screw in, and has a loosening prevention function that does not loosen after tightening. To provide. SOLUTION: A thread portion 2 of a spiral ridge 2a for screwing is provided on an outer surface of a tapered screw main body 1 and the ridge is provided.
The groove of the concave part which has the function of preventing loosening in the valley of the thread part 2 by 2a
3a is provided in a spiral 3 that forms a reverse screw with the spiral ridge 2a.

Description

【考案の詳細な説明】[Detailed description of the invention]

【０００１】[0001]

【産業上の利用分野】[Industrial applications]

本考案は、主として木材やプラスチック材にねじ込む木ねじであって、ねじ止 め後、緩みが生じない緩み止め機能付木ねじに関するものである。 The present invention mainly relates to a wood screw which is screwed into a wood or plastic material, and which does not loosen after being screwed.

【０００２】[0002]

【従来の技術】[Prior art]

緩み止め機能付木ねじについては、従来、多数の提案がなされているが、それ らは製造に手数が掛かって高価につくものが多かったり、実際のねじ込みに際し て作業性の悪いものが多かった。 A number of proposals have been made for wood screws with a locking function, but many of them have been troublesome to manufacture and are expensive, and many of them have poor workability in actual screwing.

【０００３】 この点に鑑み、本出願人は登録実用新案第３０１０４８５号により新たな緩み 止め機能付きの木ねじの提案をした。提案した木ねじは、従来品の問題点を殆ん ど解決できる性能のものであったが、製造技術上、解決すべき点のあることも判 った。即ち、ねじに突設した螺旋状をなす突子の成形が容易でないという点であ る。[0003] In view of this point, the present applicant has proposed a new wood screw having a locking function according to Japanese Utility Model Registration No. 3010485. The proposed wood screw had a performance that could almost completely solve the problems of the conventional product, but it was also found that there was a point to be solved in terms of manufacturing technology. That is, it is not easy to form a helical protrusion protruding from the screw.

【０００４】[0004]

【考案が解決しようとする課題】[Problems to be solved by the invention]

本考案は、上記の問題点に鑑み、簡単な構造で製造が容易であり、しかも、ね じ込み作業が容易な上に、締付け後、緩みが生じない緩み止め機能を有する新た な構造を付与した木ねじを提供することを、その課題とするものである。 In view of the above problems, the present invention provides a new structure that has a simple structure that is easy to manufacture, that is easy to screw in, and that has a locking function that does not loosen after tightening. It is an object of the present invention to provide a wood screw that has been used.

【０００５】[0005]

【課題を解決するための手段】[Means for Solving the Problems]

本考案は上記課題を解決することを目的としてなされたもので、その木ねじの 構成は、先細状のねじ本体の外面にねじ込み用の螺旋凸条による螺糸部を設ける と共に、前記凸条による螺糸部の谷に、緩み止め機能を果す凹部を、前記螺旋凸 条と逆ねじをなす螺旋状に設けたことを特徴とするものである。 The present invention has been made for the purpose of solving the above-mentioned problem, and the structure of the wood screw is such that a screw portion of a spiral ridge for screwing is provided on the outer surface of a tapered screw body, and the screw is formed by the ridge. The valley of the thread portion is provided with a concave portion having a function of preventing loosening in a spiral shape forming a reverse screw with the spiral ridge.

【０００６】[0006]

【考案の実施の形態】 本考案木ねじは、そのねじ本体に設けられたねじ込み用の螺旋凸条による螺糸 部の谷に、緩み止めとして機能する凹部を、前記螺旋凸条とは逆ねじになる螺旋 状に設けたので、ねじ込んだ後に、逆ねじ螺旋状に形成された凹部に木肉が食い 込み、かつ、この木肉の前記凹部への食い込みが逆ねじ作用をするので、ねじ込 んだ木ねじは、凡そ緩むおそれがない。BEST MODE FOR CARRYING OUT THE INVENTION The wood screw of the present invention is provided with a concave portion functioning as a locking device in a valley of a thread portion formed by a spiral ridge for screwing provided on a screw body, and a reverse screw to the spiral ridge. Since it is provided in a spiral shape, after the screw is screwed in, the wooden meat bites into the concave portion formed in the reverse screw spiral shape, and the bite of the wooden meat into the concave portion acts as a reverse screw. The wood screws are unlikely to loosen.

【０００７】 上記作用する本考案木ねじの実施例を図を参照しつつ説明する。図１は本考案 木ねじの一例の正面図、図２は図１の木ねじのＡ−Ａ矢視図である。An embodiment of the wood screw according to the present invention that operates as described above will be described with reference to the drawings. FIG. 1 is a front view of an example of the wood screw of the present invention, and FIG. 2 is a view of the wood screw of FIG.

【０００８】 図１において、１は先細状に形成した木ねじ本体、２は該本体１の外周面に形 成したねじ込み用の螺旋凸条2aによる螺糸部、2bは各凸条2aの間の谷部、３は緩 み止めの逆ねじ作用をするように、前記の各谷部2bに凹部を溝3aにより形成した 逆ねじ部、４はこのねじの頭部、５は頭部４の上面に形成したねじ込み用ビット の嵌合溝で、以上により本考案木ねじの一例を構成する。尚、前記溝５はプラス 型でもマイナス型でもよい。本考案において、上記凹部は、窪みを並べて形成す ることもある。In FIG. 1, reference numeral 1 denotes a wood screw main body formed in a tapered shape, 2 denotes a thread portion formed by a spiral ridge 2a for screwing formed on an outer peripheral surface of the main body 1, and 2b denotes a space between the ridges 2a. The valleys 3 have recesses formed in the valleys 2b by the grooves 3a so as to have a reverse screw action for preventing loosening. The fitting groove of the screwing bit formed in the above constitutes an example of the wood screw of the present invention. Incidentally, the groove 5 may be a plus type or a minus type. In the present invention, the recess may be formed by arranging recesses.

【０００９】 本考案木ねじは、例えばこれを木材にねじ込むとき、まず、螺糸部２の先端を 木材のねじ込みたい箇所に当てがい、溝５にドライバ等の締付具のビットを嵌め 込んでねじ込みを行う。このねじ込み操作は、従来の木ねじと同一である。本考 案木ねじは、前記螺糸部２の凸条2aによる木材へのねじ込みが終わると、螺糸部 ２の谷2bに逆ねじ状に凹設された緩み止め作用をする逆ねじ部３の各凹部の溝3a に、上記のねじ込み操作により、木材中に進入した木ねじによって拡開された当 該木材の木肉がその復元力によって入り込む。前記の各凹部の溝3aは逆ねじの傾 きを付与した螺旋状に形成され、かつ、各溝3aが木肉で埋められるので、木肉が 食い込んだ前記逆ねじの各溝3aの作用によって、本考案木ねじは、ねじ込み後に 緩みが生じるおそれは、およそ皆無である。この点は、溝3aに代え、窪みを逆ね じ状に並べた木ねじにおいても同様である。When the wood screw of the present invention is screwed into wood, for example, first, the tip of the thread portion 2 is applied to a portion of the wood to be screwed, and a bit of a fastener such as a screwdriver is fitted into the groove 5 and screwed. I do. This screwing operation is the same as a conventional wood screw. When the screwing of the thread portion 2 into the wood by the ridges 2a of the thread portion 2 is completed, the wood screw of the present invention is provided with a reverse threaded portion 3 which is recessed in the valley 2b of the thread portion 2 in a reverse thread shape and has a locking action. By the above-mentioned screwing operation, the wood of the wood expanded by the wood screw that has entered the wood enters the groove 3a of each concave portion by its restoring force. The grooves 3a of the respective recesses are formed in a spiral shape with an inclined reverse screw, and the grooves 3a are filled with wooden meat. However, the wood screws of the present invention have almost no risk of loosening after screwing. The same applies to a wood screw in which the depressions are arranged in a reverse screw shape instead of the groove 3a.

【００１０】 尚、上記実施例においては、本考案木ねじを木材にねじ込む例について述べた が、本考案木ねじはプラスチック材、木質材とプラスチック材の合成材など、木 ねじが使用できる材料へのねじ込みに適用しても、前記の木材へのねじ込みの場 合と同等の効果が得られる。In the above-described embodiment, an example in which the wood screw of the present invention is screwed into wood has been described. However, the wood screw of the present invention is screwed into a material in which wood screws can be used, such as a plastic material or a composite material of wood and plastic materials. The same effect as in the case of screwing into wood as described above can be obtained even when applied to wood.

【００１１】[0011]

【考案の効果】[Effect of the invention]

本考案木ねじは上述のとおりであって、先細状のねじ本体の外面にねじ込み用 の螺旋凸条による螺糸部を設けると共に、前記凸条螺子部の谷に緩み止め機能を 果す凹部を、前記螺旋凸条と逆ねじをなす螺旋状に設けて木ねじに形成したから 、この木ねじを木材にねじ込んで締付けると、その後の木肉の復元力により、逆 ねじ状に設けられた凹溝に木肉が食い込むので、緩みが生じて脱落するおそれは なくなる。また、本考案木ねじは、そのねじ込み作業も通常の木ねじと殆んど同 様に簡易に行うことができ、更に、構造も簡単であるから、容易且つ低廉に作製 提供することができる。 The wood screw according to the present invention is as described above, and a threaded portion formed by a spiral ridge for screwing is provided on the outer surface of the tapered screw body, and a concave portion having a loosening prevention function is provided at a valley of the convex threaded portion. Since it was formed into a wood screw by spirally forming a reverse screw with the helical ridge, the wood screw was screwed into wood and tightened. There is no danger of loosening and falling off. Further, the wood screw of the present invention can be screwed in almost as easily as a normal wood screw, and has a simple structure, so that it can be manufactured and provided at a low cost.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本考案木ねじの一例の正面図。FIG. 1 is a front view of an example of a wood screw of the present invention.

【図２】図１のＡ−Ａ矢視図。 １ 木ねじ本体 ２ 螺糸部 2a 螺旋凸条 2b 凸条間の谷部 ３ 逆ねじ部 3a 凹部の溝 ４ 頭部 ５ 嵌合溝FIG. 2 is a view taken in the direction of arrows AA in FIG. 1; DESCRIPTION OF SYMBOLS 1 Wood screw body 2 Thread part 2a Spiral ridge 2b Valley between ridges 3 Reverse screw part 3a Groove of concave part 4 Head 5 Fitting groove

Claims (2)

【実用新案登録請求の範囲】[Utility model registration claims] 【請求項１】 先細状のねじ本体の外面にねじ込み用の
螺旋凸条による螺糸部を設けると共に、前記凸条による
螺糸部の谷に、緩み止め機能を果す凹部を、前記螺旋凸
条と逆ねじをなす螺旋状に設けたことを特徴とする緩み
止め機能付木ねじ。1. A tapered screw body having a thread portion formed by a spiral ridge for screwing on an outer surface thereof, and a valley of the thread portion formed by the ridge being provided with a concave portion having a function of preventing loosening. A wood screw with a function of preventing loosening, which is provided in a spiral shape forming a reverse screw. 【請求項２】 凹部は、複数の窪みを並べて形成した請
求項１の緩み止め機能付木ねじ。2. The wood screw with a locking function according to claim 1, wherein the recess is formed by arranging a plurality of recesses.