時計の部品固定構造

Fixing structure for parts of timepiece

Abstract

PROBLEM TO BE SOLVED: To prevent the distortion of thin plate to be caused by screw tightening force by considering fixing screw, spacer shape, etc., when fixing a thin plate and a spacer put by thin plate on a ground plate. SOLUTION: The cross sectional height of a spacer 13 is slightly changed from the boundary line connecting the fixing screws 15 and 25 and the side intolerable of bending upward for the function of a thin plate 14 is set at lower level (h13a>h13b). By tightening the fixing screws 15 and 25, the thin plate 14 is pushed to h13b side from the h13a side supporting point and the upward bending is automatically corrected. With this structure, fixing becomes possible with a small number of fixing screws 15 and 25 without causing distortion affecting the function such as bending of the thin plate 14. Therefore, the space becomes small and cost reduction due to part reduction becomes possible. COPYRIGHT: (C)1998,JPO
(57)【要約】 【課題】 時計ムーブメントの固定構造において、メネ ジピンが打ち込まれている地板と、前記地板の上に重な るスペーサと、前記スペーサに重なる薄板とから成る3 層構造をなし、3層目の薄板上から地板のメネジピン部 へ固定ネジで3層構成部品を固定する構造において、剛 性の弱い3層目の薄板の末端が、ネジを締める力で上反 りせず固定することができるようにすること。 【解決手段】 薄板14が載るスペーサ13上面の断面 高さを、部分的に変えることにより、固定ネジ15およ び25の締める力で、薄板14をスペーサ13側に押さ え付けるような変形をさせ、上反りを矯正する。

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