FASTENING MEMBER

PROBLEM TO BE SOLVED: To solve a problem of no presence of the prior art fastening member, in particular, a fastening member utilizing a screw structure in which its fastened state can be continued precisely without producing any looseness for a prolonged period.SOLUTION: This invention provides a f...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SAKAI SHIGENORI, HIRAI SATOYUKI
Format: Patent
Sprache:eng ; jpn
Schlagworte:
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To solve a problem of no presence of the prior art fastening member, in particular, a fastening member utilizing a screw structure in which its fastened state can be continued precisely without producing any looseness for a prolonged period.SOLUTION: This invention provides a fastening member configured such that a plurality of protrusions are arranged in rows in parallel along an axis direction at an outer peripheral surface of the round-rod like main body, and adjoining protrusions arranged in rows in parallel to each other in a direction intersecting the axis direction are displaced in position by about a half of their base ends along the axis direction.SELECTED DRAWING: Figure 1 【課題】 従来の締結部材、特にねじ構造を利用した締結部材にあって、長時間に亘って緩みが生じることがなく、精巧にその締結状態を保持し続けることができるものは存在していなかったという点である。【解決手段】 円棒状をした本体の外周面に、その本体の軸芯方向に沿って複数の突起を平行に列設してあることとし、前記した平行に列設され、軸芯方向と直交する方向で隣接する突起は、その基端の略2分の1を軸芯方向に沿って位置をずらせてあることとする。【選択図】 図1