中立復帰のヒンジ装置

Hinge device of neutral reversion

Abstract

PROBLEM TO BE SOLVED: To remove all of weakening of straightening restoration elasticity of a flexible restoration member, that is the unstabilization elements of neutral reversion operation of a turning body by so-called losing of flexibility characteristic to the flexible restoration member by simple constitution by improving and considering much about the flexible restoration member in a hinge device of neutral reversion. SOLUTION: In order to constitute the hinge device which pivotally supports the turning body 2 which ordinarily returns to neutral with respect to a pivotally supporting body 1, an opposing elastic piece 6 obtained by forming a flexible restoration material in the state of a tapered flat ring at opposing pivots 4 with a lower flange 3 is projectingly formed in a bendable state by its fixed base part 7; and in the state of covering this opposing elastic piece 6 with the turning body 2 with an open bottom and engaging its pivotally supporting hole 2A into an opposing pivots 4, the upper parts of the opposing pivots 4 are fitted to the pivotally supporting body 1 by recess and projection engagement with elasticity peculiar to the material. The rotator 2 tilted with respect to the pivotally supporting body 1 is pivotally supported in a state where neutral reversion is possible with straightening restoration elasticity of the opposing elastic piece 6; and the pivotally supporting body 1 and the lower flange 3 prevents the turning body 2 from coming out from the pivotally supporting body 1. COPYRIGHT: (C)2005,JPO&NCIPI
【課題】中立復帰のヒンジ装置における可撓復元部材に改良工夫を施すことで、その直線化復元弾力の弱化、すなわち可撓復元部材固有の所謂ヘタリによる回動体の中立復帰動作の不安定要素を簡易な構成ですべて除去すること。 【解決手段】枢支体1に対して常には中立復帰する回動体2を枢支したヒンジ装置を構成するに当たり、下鍔3を有する対向枢軸4に可撓復元素材で先細偏平リング状に成形した対向弾片6をその固定基部7により撓み曲げ可能に突設し、この対向弾片6に下部開放の回動体2を被せ、その枢支孔2Aを前記対向枢軸4に係入した状態で、この対向枢軸4の上部を素材固有の弾力で凹凸係合により前記枢支体1に取着することで、この枢支体1に対し傾けた回動体2を前記対向弾片6の直線化復元弾力で中立復帰可能に枢支しかつ、枢支体1と前記下鍔3とで枢支体1に対する前記回動体2の抜け止めを施こした。 【選択図】 図1

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