POSITIONING MECHANISM OF CHAIR COMPONENT

To provide a positioning mechanism of chair components in which sliding property is preferable, its strength is free from anxiety, and multi-stage adjustment can be arranged.SOLUTION: A positioning mechanism can change a positional relationship between chair components, e.g., a movable member relati...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: NOMIZO WATARU, ICHIKAWA TOMOAKI
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:To provide a positioning mechanism of chair components in which sliding property is preferable, its strength is free from anxiety, and multi-stage adjustment can be arranged.SOLUTION: A positioning mechanism can change a positional relationship between chair components, e.g., a movable member relatively rotating coaxially centering on an operating shaft 9 provided to a back-rest support member 21, e. g., a locking block and a fixing member, e.g., a fixed block 34, and performs the positioning by fixing it. In the positioning mechanism, there are provided protrusions in any of the opposed surface with the locking block and the fixed block 34, and multiple recesses 36 with the protrusions fitted therein to the other side. Also, any one of the locking block or the fixed block 34 is always biased to the other side, and thereby the protrusion is fitted to any recess 36. Accordingly, the fixed block 34 is mounted to the back-rest support member 21, and thereby the positional relationship of the locking block to the back-rest support member 21 is fixed.SELECTED DRAWING: Figure 22 【課題】摺動性が良く、強度面に不安がなく、多段階の調整を設けることが可能な椅子の構成部品の位置決め機構を提供する。【解決手段】椅子の構成部品例えば背凭れ支持部材21に備えられている操作軸9を中心に同軸上で相対的に回転する可動部材例えば係止ブロックと固定部材例えば固定ブロック34との位置関係を変更可能にすると共に固定することで位置決めする位置決め機構において、係止ブロックと固定ブロック34との対向する面のいずれか一方に凸部を、他方に凸部が嵌入する複数の凹部36を設けると共に、係止ブロックまたは固定ブロック34のいずかれ一方が他方に対して常時付勢されることによって凸部がいずれかの凹部36に嵌入するものであり、背凭れ支持部材21に固定ブロック34が取り付けられ背凭れ支持部材21に対する係止ブロックの位置関係が固定されるようにしている。【選択図】図22