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A platform for research: civil engineering, architecture and urbanism
CHUCK FOR PULLING OUT LONGITUDINAL MEMBER
To provide a technique which enables noninvasive gripping of an existing longitudinal member and easy pulling-out of it from an installation place at low noise and low vibrations.SOLUTION: A chuck detachably fitted to a longitudinal member comprises: an outer frame configured to have a plurality of split bodies arranged in a peripheral direction of the longitudinal member; a cylindrical contact layer supported on an inner surface of the outer frame, having elasticity in at least a radial direction and having a soft material in at least a front layer; and a force conversion mechanism 86 for converting, when the plurality of split bodies are connected to each other in the peripheral direction and fastened to the longitudinal member, a part of a fastening force applied to the plurality of split bodies into a radial force and applying it to the contact layer. The force conversion mechanism 86 includes a rod-like fastener 164 for fastening the two split bodies adjacent to each other in a direction inclined with respect to a tangential direction about an axis of the longitudinal member.SELECTED DRAWING: Figure 19
【課題】既設の長手部材を非侵襲的に把持してその設置場所から低騒音・低振動でかつ簡易に引き抜くことを可能にする技術を提供する。【解決手段】長手部材に着脱可能に装着されるチャックが開示されている。そのチャックは、長手部材の周方向に並ぶ複数の分割体を有するように構成される外枠と、その外枠の内面に支持され、少なくとも半径方向において弾性を有するとともに少なくとも表層において軟質材を有する筒状の接触層と、前記複数の分割体が周方向に相互に連結されて前記複数の分割体が前記長手部材に締め付けられるときに前記複数の分割体に作用する締付力の一部を半径方向力に変換して前記接触層に作用させる力変換機構８６とを含み、その力変換機構８６は、互いに隣接する２つの分割体を、前記長手部材の軸線回りの接線方向に対して傾斜した方向に相互に締め付ける棒状締付具１６４を含む。【選択図】図１９
CHUCK FOR PULLING OUT LONGITUDINAL MEMBER
To provide a technique which enables noninvasive gripping of an existing longitudinal member and easy pulling-out of it from an installation place at low noise and low vibrations.SOLUTION: A chuck detachably fitted to a longitudinal member comprises: an outer frame configured to have a plurality of split bodies arranged in a peripheral direction of the longitudinal member; a cylindrical contact layer supported on an inner surface of the outer frame, having elasticity in at least a radial direction and having a soft material in at least a front layer; and a force conversion mechanism 86 for converting, when the plurality of split bodies are connected to each other in the peripheral direction and fastened to the longitudinal member, a part of a fastening force applied to the plurality of split bodies into a radial force and applying it to the contact layer. The force conversion mechanism 86 includes a rod-like fastener 164 for fastening the two split bodies adjacent to each other in a direction inclined with respect to a tangential direction about an axis of the longitudinal member.SELECTED DRAWING: Figure 19
【課題】既設の長手部材を非侵襲的に把持してその設置場所から低騒音・低振動でかつ簡易に引き抜くことを可能にする技術を提供する。【解決手段】長手部材に着脱可能に装着されるチャックが開示されている。そのチャックは、長手部材の周方向に並ぶ複数の分割体を有するように構成される外枠と、その外枠の内面に支持され、少なくとも半径方向において弾性を有するとともに少なくとも表層において軟質材を有する筒状の接触層と、前記複数の分割体が周方向に相互に連結されて前記複数の分割体が前記長手部材に締め付けられるときに前記複数の分割体に作用する締付力の一部を半径方向力に変換して前記接触層に作用させる力変換機構８６とを含み、その力変換機構８６は、互いに隣接する２つの分割体を、前記長手部材の軸線回りの接線方向に対して傾斜した方向に相互に締め付ける棒状締付具１６４を含む。【選択図】図１９
CHUCK FOR PULLING OUT LONGITUDINAL MEMBER
長手部材引抜用チャック
YOSHIKAWA AKIHIRO (author)
2024-05-24
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
LONGITUDINAL MEMBER DRAWING CHUCK AND LONGITUDINAL MEMBER DRAWING METHOD
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LONGITUDINAL MEMBER DRAWING CHUCK AND LONGITUDINAL MEMBER DRAWING METHOD
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