JP3010485U - Wood screw with locking function - Google Patents

Abstract

(57)【要約】 【目的】 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
止め機能付木ねじを提供する。 【構成】 先細状のねじ本体１の下端にねじ込み用の螺
糸部２を設け、該螺糸部２とねじ頭部４との間に螺旋状
に多数の突子３を設けた。 (57) [Abstract] [Purpose] To provide a wood screw with a loosening prevention function, which has a simple structure, is easy to manufacture, is easy to screw in, and does not loosen after tightening. [Structure] A threaded portion 2 for screwing is provided at the lower end of a tapered screw body 1, and a large number of protrusions 3 are provided spirally between the threaded portion 2 and a screw head 4.

Description

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

【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 that is screwed into wood or a plastic material and does not loosen after being screwed, with a loosening prevention function.

【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い。 Many proposals have been made for wood screws with a locking function in the past, but many of them are time-consuming to manufacture and expensive, and many have poor workability when actually screwed.

【０００３】[0003]

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

本考案は、上記のような従来技術に鑑み、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付木 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-mentioned conventional techniques, the present invention provides a wood screw with a locking function, which has a simple structure and is easy to manufacture, and is easy to screw in, and does not loosen after tightening. That is the task.

【０００４】[0004]

【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、その構成は、 先細状のねじ本体の下端にねじ込み用の螺糸部を設け、該螺糸部とねじ頭部との 間に螺旋状に多数の突子を設けたことを特徴とするである。 The present invention has been made for the purpose of solving the above-mentioned problems, and its configuration is such that a threaded portion for screwing is provided at a lower end of a tapered screw body, and the threaded portion is provided between the screw portion and the screw head. It is characterized in that a large number of protrusions are provided in a spiral shape.

【０００５】 而して、ねじ頭部の下部と螺旋状に多数設けられた突子の上部との間に平滑部 を形成し、該部に凹部を適宜数周設すれば、緩み止め効果は一層向上する。Thus, if a smooth portion is formed between the lower portion of the screw head and the upper portion of the plurality of spirally provided protrusions, and a recess is provided around the portion as appropriate, the loosening prevention effect can be obtained. Further improve.

【０００６】[0006]

【作用】[Action]

ねじ本体の下端部に螺糸部を設けたから、木材に対する当初のねじ込みが円滑 に行われ、事後は、螺旋状に多数設けられた突子が木材を切り込みながらねじ込 こまれて、強固に木肉に止着されるばかりでなく、ねじ込み後は、木肉の復元力 が作用して、突子間に木肉に食い込むようになるので、緩むおそれはない。 Since the threaded portion is provided at the lower end of the screw body, the initial screwing into the wood is performed smoothly, and after that, a large number of spirally provided protrusions are screwed in while cutting the wood to firmly solidify the wood. Not only is it fastened to the meat, but after screwing in, the restoring force of the wood acts to cut into the meat between the prongs, so there is no risk of loosening.

【０００７】 更に、ねじ頭部の下部と突子の上部との間に形成した平滑部に凹部を適宜数周 設すれば、ねじ込み時に拡開した木肉の復元力が作用して、木肉が該凹部に侵入 するようになるので、緩み止め機能は一層向上する[0007] Furthermore, if several recesses are appropriately provided in the smooth portion formed between the lower part of the screw head and the upper part of the protrusion, the restoring force of the expanded meat when screwing in acts, and Will come into the recess, further improving the locking function.

【０００８】[0008]

【実施例】【Example】

次に本考案の実施例を図により説明する。図１は本考案の一例の左半を断面に した正面図、図２は同じく別例の一部を断面にした正面図である。 Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view showing a left half of an example of the present invention in section, and FIG. 2 is a front view showing a part of another example in section.

【０００９】 図１において、１は先細状の木ねじ本体、２は該本体の下端部側に形成したね じ込み用の螺糸部、３は前記螺糸部２と頭部４との間に螺旋状に多数形成した突 子、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。In FIG. 1, 1 is a tapered wood screw main body, 2 is a screw thread portion for screwing formed on the lower end side of the main body, and 3 is between the screw thread portion 2 and the head portion 4. A large number of spirally formed protrusions 5 are fitting grooves for screwing bits formed on the upper surface of the head 4, and thus constitute one example of the wood screw of the present invention. The groove 5 may be a plus type or a minus type.

【００１０】 この木ねじは、これを木材にねじ込むには、まず、螺糸部２の先端を木材のね じ込み個所に当てがい、溝５にドライバ等の締付具のビットを嵌め込んで捩じ込 みを開始し、螺糸部２による捩じ込みが終わると、次は螺旋状に多数設けられた 突子３が木材の木肉を引き掻きながらねじ込まれるので、頭部４が木材に当接す るまで捩じ込めばよい。In order to screw this wood screw into wood, first apply the tip of the threaded portion 2 to the screwing point of the wood, insert a bit of a tightening tool such as a screwdriver into the groove 5 and screw it. When the screwing in is started and the screwing in by the threaded portion 2 is finished, next, a large number of spirally provided protrusions 3 are screwed in while scratching the wood flesh, so that the head 4 is attached to the wood. Just screw it in until it abuts.

【００１１】 このようにして木材にねじ込まれた木ねじは、ねじ込みにより拡開された木材 の木肉の復元力により各突子３の隙間が木肉で埋まり、結果的に各突子３は木肉 に食い込むようになるので、ねじ込み後、緩みの生じるおそれはおよそ皆無であ る。In the wood screw thus screwed into the wood, the gap between the protrusions 3 is filled with the wood meat due to the restoring force of the wood meat expanded by the screwing, and as a result, each of the protrusions 3 is made of wood. Since it will bite into the meat, there is almost no risk of loosening after screwing.

【００１２】 また、図２に示すように、頭部４と突子３の上端部との間に平滑部６を形成し 、該平滑部６に適宜数の凹部７を設けると、上記と同様に、ねじ込みにより拡開 された平滑部６周辺の木材の木肉がその復元力により平滑部６を押圧して凹部７ に侵入するようになので、捩じ込み後、緩みの生じるおそれはない。Further, as shown in FIG. 2, if a smooth portion 6 is formed between the head 4 and the upper end of the protrusion 3 and an appropriate number of recesses 7 are provided in the smooth portion 6, the same as above. In addition, since the wood meat around the smooth portion 6 expanded by screwing presses the smooth portion 6 by the restoring force and enters the concave portion 7, there is no risk of loosening after screwing.

【００１３】 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へのねじ込みに適用しても木材へのねじ込み と同等の効果を得られる。In the above embodiment, an example in which the wood screw of the present invention is screwed into wood has been described, but the wood screw of the present invention can also be applied to plastic material to obtain the same effect as screwing into wood.

【００１４】[0014]

【考案の効果】[Effect of device]

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下端にねじ込み用 の螺糸部を設け、該螺糸部とねじ頭部との間に螺旋状に多数の突子を設けたから 、木材にねじ込んで締付け後、木肉の復元力により、螺旋状に多数設けられた突 子が押さえ込まれ、該突子が木肉に食い込むようになるので、緩みが生じて脱落 するおそれはなく、また、ねじ頭部と突子の上端部との間に平滑部を設けて該部 に凹部を適宜数周設しても上記と同等の作用があり、ねじ込み後、緩みが生じる おそれはないし、そのねじ込み作業も通常の木ねじと大差はなく簡易に行うこと ができる。更に、本考案木ねじは構造が簡単で容易且つ低廉に作製提供すること ができる。 The wood screw of the present invention is as described above, and the threaded portion for screwing is provided at the lower end of the taper-shaped screw body, and a large number of spiral projections are provided between the threaded portion and the screw head. After screwing it into the wood and tightening it, the restoring force of the wood meat pushes down a large number of spirally-arranged protrusions that bite into the wood meat, so there is no risk of loosening and falling. Also, even if a smooth portion is provided between the screw head and the upper end of the protrusion and the recess is provided around this portion for several times, the same effect as above can be obtained, and there is no fear of loosening after screwing. However, the screwing work is not much different from ordinary wood screws and can be easily performed. Further, the wood screw of the present invention has a simple structure and can be manufactured and provided easily and at low cost.

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

【図１】本考案木ねじの一例の斜視図。FIG. 1 is a perspective view of an example of a wood screw of the present invention.

【図２】本考案木ねじの別例の斜視図。 １ 木ねじ本体 ２ 螺糸部 ３ 突子 ４ 頭部 ５ ねじ込み用の溝 ６ 平滑部 ７ 凹部FIG. 2 is a perspective view of another example of the wood screw of the present invention. 1 Wood screw main body 2 Screw thread portion 3 Protrusion 4 Head portion 5 Threading groove 6 Smooth portion 7 Recessed portion

Claims (2)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項１】 先細状のねじ本体の下端にねじ込み用の
螺糸部を設け、該螺糸部とねじ頭部との間に螺旋状に多
数の突子を設けたことを特徴とする緩み止め機能付木ね
じ。1. A looseness characterized in that a threaded portion for screwing is provided at a lower end of a taper-shaped screw body, and a large number of protrusions are spirally provided between the threaded portion and the screw head. Wood screw with a stop function. 【請求項２】 ねじ頭部の下部と螺旋状に多数設けられ
た突子の上部との間に凹部を適宜数設けた請求項１に記
載の木ねじ。2. The wood screw according to claim 1, wherein an appropriate number of recesses are provided between the lower part of the screw head and the upper part of the plurality of spirally provided protrusions.