Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
To provide an advance/retract movement device that can prevent an advance/retract member in an advance position from moving to a retract direction even when the advance/retract member receives a one-direction external force that is enough to move the advance/retract member to a retract direction due to vandalism or the like.SOLUTION: An advance/retract member that can advance from and retract into a case is biased using a biasing member, from the retract position side to the advance position side. An engaged portion is provided for one of the case and the advance/retract member, and an engagement portion is provided for the other. The engaged portion is provided in a spiral shape along the axial direction of the advance/retract member. The engagement portion slides with the engaged portion by means of a restriction on relative movement of the advance/retract member in the axial direction due to engagement with the engaged portion. The advance/retract member is provided so as to relatively move in the axial direction of the advance/retract member while rotating relatively to the case due to sliding of the engaged portion and the engagement portion. The biasing member biases the advance/retract member in a one-turn direction when the advance/retract member advances. The engaged portion has a blocking portion that contacts the engagement portion and blocks retraction of the advance/retract member when the advance/retract member is pushed in a retract direction without sliding of the engaged portion and the engagement portion.SELECTED DRAWING: Figure 5
【課題】前進位置にある進退部材が、悪戯操作等により後退方向へ移動する一方向の外力を受けても、後退方向への移動を防止できる進退移動装置を提供すること。【解決手段】ケースに対して進退移動可能な進退部材を、付勢部材により、後退位置側から前進位置側に付勢し、ケースと進退部材とのうちの一方に被係合部を、他方に係合部を設け、被係合部は、進退部材の軸回り方向に螺旋状に設けられ、係合部は、被係合部との係合による進退部材の軸方向の相対移動の規制によって、被係合部と摺動し、進退部材は、被係合部と係合部との摺動によって、ケースに対して相対回転しながら進退部材の軸方向に相対移動するように設けられ、付勢部材は進退部材が前進するときに進退部材を一回転方向で付勢し、被係合部は進退部材が係合部と被係合部との摺動を伴わずに後退方向に押圧されたときに、係合部と当接して進退部材の後退を阻害する阻害部を有する。【選択図】図５
To provide an advance/retract movement device that can prevent an advance/retract member in an advance position from moving to a retract direction even when the advance/retract member receives a one-direction external force that is enough to move the advance/retract member to a retract direction due to vandalism or the like.SOLUTION: An advance/retract member that can advance from and retract into a case is biased using a biasing member, from the retract position side to the advance position side. An engaged portion is provided for one of the case and the advance/retract member, and an engagement portion is provided for the other. The engaged portion is provided in a spiral shape along the axial direction of the advance/retract member. The engagement portion slides with the engaged portion by means of a restriction on relative movement of the advance/retract member in the axial direction due to engagement with the engaged portion. The advance/retract member is provided so as to relatively move in the axial direction of the advance/retract member while rotating relatively to the case due to sliding of the engaged portion and the engagement portion. The biasing member biases the advance/retract member in a one-turn direction when the advance/retract member advances. The engaged portion has a blocking portion that contacts the engagement portion and blocks retraction of the advance/retract member when the advance/retract member is pushed in a retract direction without sliding of the engaged portion and the engagement portion.SELECTED DRAWING: Figure 5
【課題】前進位置にある進退部材が、悪戯操作等により後退方向へ移動する一方向の外力を受けても、後退方向への移動を防止できる進退移動装置を提供すること。【解決手段】ケースに対して進退移動可能な進退部材を、付勢部材により、後退位置側から前進位置側に付勢し、ケースと進退部材とのうちの一方に被係合部を、他方に係合部を設け、被係合部は、進退部材の軸回り方向に螺旋状に設けられ、係合部は、被係合部との係合による進退部材の軸方向の相対移動の規制によって、被係合部と摺動し、進退部材は、被係合部と係合部との摺動によって、ケースに対して相対回転しながら進退部材の軸方向に相対移動するように設けられ、付勢部材は進退部材が前進するときに進退部材を一回転方向で付勢し、被係合部は進退部材が係合部と被係合部との摺動を伴わずに後退方向に押圧されたときに、係合部と当接して進退部材の後退を阻害する阻害部を有する。【選択図】図５
ADVANCE/RETRACT MOVEMENT DEVICE
進退移動装置
SONOBE KOJI (Autor:in)
13.08.2020
Patent
Elektronische Ressource
Japanisch
Floating bridge -- Pontoons retract under approaches
Engineering Index Backfile | 1945