To provide a height adjustable armrest which can be made light in weight and which can suppress manufacturing cost.SOLUTION: A height adjustable armrest 1 includes: a fixed side member 2 which is composed of an installation member 21 and a lock drum 22; a rotary side member 3 which has an arm member 31; and a lock spring mechanism 4 which is composed of a lock spring 41 and a cam mechanisms 42, 43. In this armrest, in the fixed side member 2, in more than a pair of two places oppositely facing across the rotary center L2 of the rotary side member 3, an abutment part 51 for a lower stopper is provided while, in the rotary side member 3, an abutted part 52 for the lower stopper for more than a pair of two places is provided. Each of the abutted part 52 for the lower stopper is made a step part wall surface of a recessed part 31c formed in the rotary side member 3. Also, the abutted part 52 for the lower stopper is made a stepped molding part for which the step part wall surface of the end of a remaining plane part 31B in the rotary side member 3 is reinforced in the cross section.SELECTED DRAWING: Figure 2
【課題】軽量化を図ることや製造コストを抑えることができる高さ調節式のアームレストを提供する。【解決手段】取付部材21及びロックドラム22で構成された固定側部材2と、アーム部材31を有する回動側部材3と、ロックばね41及びカム機構42,43で構成されたロックばね機構4とを備えた高さ調節式のアームレスト1において、固定側部材2における、回動側部材3の回転中心L2を挟んで対向する一対2箇所以上に、下側ストッパー用当接部51を設ける一方、回動側部材3に、一対2箇所以上の下側ストッパー用被当接部52を設け、それぞれの下側ストッパー用被当接部52を、回動側部材3に形成された窪み部31cの段差部壁面とするとともに、下側ストッパー用被当接部52を、回動側部材3における残存平面部31Bの端の段差部壁面を断面補強した段付成形部とした。【選択図】 図2
HEIGHT ADJUSTABLE ARMREST
高さ調節式のアームレスト
2021-05-20
Patent
Elektronische Ressource
Japanisch
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