A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
DAMPER DEVICE AND FIXTURE
PROBLEM TO BE SOLVED: To provide a damper device and fixture capable of properly adjusting attenuation force to be carried out, according to a movement direction or movement position of a movable body.SOLUTION: A door closer 5 as a damper device includes: a rotational shaft 15 configured to rotate along with movement of a door 1; a magnetic fluid part 50 to which magnetic viscous fluid 51 having a nature that viscosity varies according to a magnetic field is input, and into which an agitation fin 19 driven by the rotation of the rotational shaft 15 is inserted in a rotatable manner; magnets 71a-71d configured to increase viscosity of the magnetic viscous fluid 51 with the magnetic field; a magnetic field shield 60 that is arranged between the magnetic fluid part 50 and the magnets 71a-71d, and in which a magnetism shielding part 62 for shielding magnetism and a slit 61 for passing magnetism are formed side by side in the rotation direction of the rotational shaft 15; and a rotation member 20 configured to rotate along with the rotational shaft 15 and change a positional relationship between the magnets 71a-71d and the slit 61 in the rotation direction.SELECTED DRAWING: Figure 2
【課題】移動体の移動方向や移動位置に応じて作用させる減衰力を適切に調節できるダンパ装置及び建具を提供すること。【解決手段】ダンパ装置としてのドアクローザ５は、ドア１の移動に連動して回転する回転軸１５と、磁界に応じて粘度が変化する性質を有する磁気粘性流体５１が充填されるとともに、回転軸１５の回転に従動する撹拌フィン１９が回転可能に挿入される磁性流体部５０と、磁界によって磁気粘性流体５１の粘度を増加させる磁石７１ａ〜ｄと、磁性流体部５０と磁石７１ａ〜ｄの間に配置され、磁気を遮る磁気遮蔽部６２と磁気を通すスリット６１が回転軸１５の回転方向で並んで形成される磁界シールド６０と、回転軸１５に連動して回転し、磁石７１ａ〜ｄとスリット６１の位置関係を回転方向で変化させる回転部材２０と、を備える。【選択図】図２
DAMPER DEVICE AND FIXTURE
PROBLEM TO BE SOLVED: To provide a damper device and fixture capable of properly adjusting attenuation force to be carried out, according to a movement direction or movement position of a movable body.SOLUTION: A door closer 5 as a damper device includes: a rotational shaft 15 configured to rotate along with movement of a door 1; a magnetic fluid part 50 to which magnetic viscous fluid 51 having a nature that viscosity varies according to a magnetic field is input, and into which an agitation fin 19 driven by the rotation of the rotational shaft 15 is inserted in a rotatable manner; magnets 71a-71d configured to increase viscosity of the magnetic viscous fluid 51 with the magnetic field; a magnetic field shield 60 that is arranged between the magnetic fluid part 50 and the magnets 71a-71d, and in which a magnetism shielding part 62 for shielding magnetism and a slit 61 for passing magnetism are formed side by side in the rotation direction of the rotational shaft 15; and a rotation member 20 configured to rotate along with the rotational shaft 15 and change a positional relationship between the magnets 71a-71d and the slit 61 in the rotation direction.SELECTED DRAWING: Figure 2
【課題】移動体の移動方向や移動位置に応じて作用させる減衰力を適切に調節できるダンパ装置及び建具を提供すること。【解決手段】ダンパ装置としてのドアクローザ５は、ドア１の移動に連動して回転する回転軸１５と、磁界に応じて粘度が変化する性質を有する磁気粘性流体５１が充填されるとともに、回転軸１５の回転に従動する撹拌フィン１９が回転可能に挿入される磁性流体部５０と、磁界によって磁気粘性流体５１の粘度を増加させる磁石７１ａ〜ｄと、磁性流体部５０と磁石７１ａ〜ｄの間に配置され、磁気を遮る磁気遮蔽部６２と磁気を通すスリット６１が回転軸１５の回転方向で並んで形成される磁界シールド６０と、回転軸１５に連動して回転し、磁石７１ａ〜ｄとスリット６１の位置関係を回転方向で変化させる回転部材２０と、を備える。【選択図】図２
DAMPER DEVICE AND FIXTURE
ダンパ装置及び建具
TANAKA ATSUSHI (author) / MATSUDA HIROSHI (author)
2017-09-28
Patent
Electronic Resource
Japanese
BOLT SECURING FIXTURE OF VISCOELASTIC DAMPER ON VIBRATION DAMPING DEVICE AND ASSEMBLY METHOD THEREOF
| European Patent Office | 2019