SCREW FASTENING TOOL WITH SCREW FALL PREVENTION FUNCTION

• Main Author: MIYAKE YOSHIO
• Format: Patent
• Language: English; Japanese
• Published: 07.09.2017
• Subjects: HAND TOOLS; MANIPULATORS; PERFORMING OPERATIONS; PORTABLE POWER-DRIVEN TOOLS; TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FORFASTENING, CONNECTING, DISENGAGING OR HOLDING; TRANSPORTING

PROBLEM TO BE SOLVED: To provide a screw fastening tool capable of fastening a polygonal bolt or nut with one hand without dropping the bolt or nut in consideration of such a problem in the conventional technique that a bolt or nut made of non-magnetic material cannot be retained by a screw driver with a magnet and it is difficult to insert and hold the bolt or nut with a driver with a pincette upon the use of the bolt or nut on a place with a narrow gap.SOLUTION: A screw fastening tool has a fitting hole into which a bolt or nut having a polygonal head part is fitted. The bolt or nut is inserted and held by the fitting hole having a tapered face which is continuously formed to the straight inlet side formed over a depth direction of the fitting hole and the inner side, and is narrowed as becoming deeper and a fastening operation can be efficiently performed without dropping the bolt or nut and even with one hand.SELECTED DRAWING: Figure 1 【課題】非磁性素材のボルト又はナットは、磁石付きねじ回しでは、保持できない。また、ナットや隙間が狭い場所での使用の際にはピンセット付きドライバーでは挟持しにくいので、多角形のボルト又はナットを落とさず片手で締めることができるネジ締め工具を提供する。【解決手段】多角形の頭部を有するボルト又はナットが嵌まり込む嵌合穴を有するネジ締め工具であり、嵌合穴の深さ方向に亘って形成されているストレートの入り口側と、奥側に連続して形成されている深くなるに従って窄まるテーパー面を有している嵌合穴でボルト又はナットを挟持し、ボルト又はナットを落とさず、かつ片方の手だけでも締めつけ作業を効率よく行うことが可能である。【選択図】図１