A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PIVOT HINGE WITH CLOSING MECHANISM
PROBLEM TO BE SOLVED: To provide a pivot hinge with a closing mechanism for a door that offers a low and relatively uniform closing force in a range covering up to a prescribed opening angle, and strong closing force in a final closing stage.SOLUTION: A closing mechanism part is formed by rotatably fitting an integrated columnar cam and a shaft center at a tip side of a frame-side case, and energizing a tip protrusion of a push-in bit onto an outer peripheral surface of the columnar cam with a spring member. The columnar cam has an inclined surface that drastically changes a distance between the shaft center and the outer peripheral surface in a narrow opening angle range, and a curved surface continuing from the inclined surface that gradually increases the distance between the shaft center and the outer peripheral surface per unit opening angle. The columnar cam rotates when a door is opened, and the tip protrusion of the push-in bit moves by being pushed by the inclined surface and the curved surface and while largely deflecting the spring member. When left in a prescribed opening range, the door slowly starts closing, and even greater closing force is obtained in a final closing stage.SELECTED DRAWING: Figure 1
【課題】 所定の開放角度範囲からは弱く比較的均一な閉鎖力を有し、最終閉鎖段階でより強い閉鎖力を有する構成の、扉用の閉鎖機構付きピボットヒンジを提案する。【解決手段】 枠側ケースの先端側位置に柱状カムと軸心を一体化した状態で回動自在に装着し、押し込みビットの先端突部を柱状カムの外周面にばね部材により付勢して閉鎖機構部分を形成する。柱状カムは軸心の中心から外周面までの距離が狭い開き角度範囲にて極端に変わる傾斜面と、それに連続した同一単位開き角度に対して軸心の中心からの外周面までの距離が徐々に増加していくように設定された湾曲面を有している。扉の開放動作で柱状カムが回転し、押し込みビットの先端突部が傾斜面や湾曲面に押されてばね部材を大きく撓ませながら移動し、所定の開放範囲内でそのまま放置するとゆっくりとした閉鎖動作を開始し、閉鎖最終段階でさらに大きな閉鎖力を得る。【選択図】 図１
PIVOT HINGE WITH CLOSING MECHANISM
PROBLEM TO BE SOLVED: To provide a pivot hinge with a closing mechanism for a door that offers a low and relatively uniform closing force in a range covering up to a prescribed opening angle, and strong closing force in a final closing stage.SOLUTION: A closing mechanism part is formed by rotatably fitting an integrated columnar cam and a shaft center at a tip side of a frame-side case, and energizing a tip protrusion of a push-in bit onto an outer peripheral surface of the columnar cam with a spring member. The columnar cam has an inclined surface that drastically changes a distance between the shaft center and the outer peripheral surface in a narrow opening angle range, and a curved surface continuing from the inclined surface that gradually increases the distance between the shaft center and the outer peripheral surface per unit opening angle. The columnar cam rotates when a door is opened, and the tip protrusion of the push-in bit moves by being pushed by the inclined surface and the curved surface and while largely deflecting the spring member. When left in a prescribed opening range, the door slowly starts closing, and even greater closing force is obtained in a final closing stage.SELECTED DRAWING: Figure 1
【課題】 所定の開放角度範囲からは弱く比較的均一な閉鎖力を有し、最終閉鎖段階でより強い閉鎖力を有する構成の、扉用の閉鎖機構付きピボットヒンジを提案する。【解決手段】 枠側ケースの先端側位置に柱状カムと軸心を一体化した状態で回動自在に装着し、押し込みビットの先端突部を柱状カムの外周面にばね部材により付勢して閉鎖機構部分を形成する。柱状カムは軸心の中心から外周面までの距離が狭い開き角度範囲にて極端に変わる傾斜面と、それに連続した同一単位開き角度に対して軸心の中心からの外周面までの距離が徐々に増加していくように設定された湾曲面を有している。扉の開放動作で柱状カムが回転し、押し込みビットの先端突部が傾斜面や湾曲面に押されてばね部材を大きく撓ませながら移動し、所定の開放範囲内でそのまま放置するとゆっくりとした閉鎖動作を開始し、閉鎖最終段階でさらに大きな閉鎖力を得る。【選択図】 図１
PIVOT HINGE WITH CLOSING MECHANISM
閉鎖機構付きピボットヒンジ
NISHITANI HITOSHI (author)
2016-05-26
Patent
Electronic Resource
Japanese