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SPRING MECHANISM AND VIBRATION SUPPRESSION DEVICE HAVING SPRING MECHANISM
PROBLEM TO BE SOLVED: To provide a spring mechanism which can lower stiffness when input displacement is large more than the case that the input displacement is small, and a vibration suppression device having the spring mechanism.SOLUTION: A pair of first elastic bodies 6L, 6R are arranged at both outer sides of a second pressing part 4 integrated with a movable part 3 which is movable in an axial line direction with respect to a main body part 2. A pair of engagement parts 5L, 5R which are movable in the axial line direction with respect to the main body part and the movable part are arranged at both outer sides of the pair of first elastic bodies. The movement of the pair of engagement parts to the second pressing part side with respect to the main body part is blocked by blocking parts 9L, 9R. A pair of second elastic bodies 7L, 7R are sandwiched between one first pressing part 2a which is integrated with the main body part and one engagement part 5L, and between another first pressing part 2d which is integrated with the main body part and the other engagement part 5R in a state that the pair of second elastic bodies are imparted with prescribed compression loads in advance. When the displacement of the movable part is a prescribed value or smaller, the first elastic bodies elastically shrink, and when the displacement is larger than the prescribed value, both the first and second elastic bodies elastically shrink.SELECTED DRAWING: Figure 1
【課題】入力変位が大きいときに、小さいときよりも剛性を低くすることができるばね機構、及びそのようなばね機構を備える振動抑制装置を提供する。【解決手段】本体部2に対して軸線方向に移動可能な可動部3と一体の第２押圧部4の両外側に、一対の第１弾性体6L,6Rがそれぞれ配置され、一対の第１弾性体の両外側に、本体部及び可動部に対して軸線方向に移動可能な一対の係合部5L,5Rがそれぞれ配置され、本体部に対する第２押圧部側への一対の係合部の移動が阻止部9L,9Rで阻止される。本体部と一体の一方の第１押圧部2aと一方の係合部5Lとの間、及び、本体部と一体の他方の第１押圧部2dと他方の係合部5Rとの間に、一対の第２弾性体7L,7Rが所定の圧縮荷重が予め付与された状態でそれぞれ挟持され、可動部の変位が所定値以下のときには、第１弾性体が弾性的に縮み、所定値よりも大きいときには、第１及び第２弾性体の両方が、弾性的に縮む。【選択図】図１
SPRING MECHANISM AND VIBRATION SUPPRESSION DEVICE HAVING SPRING MECHANISM
PROBLEM TO BE SOLVED: To provide a spring mechanism which can lower stiffness when input displacement is large more than the case that the input displacement is small, and a vibration suppression device having the spring mechanism.SOLUTION: A pair of first elastic bodies 6L, 6R are arranged at both outer sides of a second pressing part 4 integrated with a movable part 3 which is movable in an axial line direction with respect to a main body part 2. A pair of engagement parts 5L, 5R which are movable in the axial line direction with respect to the main body part and the movable part are arranged at both outer sides of the pair of first elastic bodies. The movement of the pair of engagement parts to the second pressing part side with respect to the main body part is blocked by blocking parts 9L, 9R. A pair of second elastic bodies 7L, 7R are sandwiched between one first pressing part 2a which is integrated with the main body part and one engagement part 5L, and between another first pressing part 2d which is integrated with the main body part and the other engagement part 5R in a state that the pair of second elastic bodies are imparted with prescribed compression loads in advance. When the displacement of the movable part is a prescribed value or smaller, the first elastic bodies elastically shrink, and when the displacement is larger than the prescribed value, both the first and second elastic bodies elastically shrink.SELECTED DRAWING: Figure 1
【課題】入力変位が大きいときに、小さいときよりも剛性を低くすることができるばね機構、及びそのようなばね機構を備える振動抑制装置を提供する。【解決手段】本体部2に対して軸線方向に移動可能な可動部3と一体の第２押圧部4の両外側に、一対の第１弾性体6L,6Rがそれぞれ配置され、一対の第１弾性体の両外側に、本体部及び可動部に対して軸線方向に移動可能な一対の係合部5L,5Rがそれぞれ配置され、本体部に対する第２押圧部側への一対の係合部の移動が阻止部9L,9Rで阻止される。本体部と一体の一方の第１押圧部2aと一方の係合部5Lとの間、及び、本体部と一体の他方の第１押圧部2dと他方の係合部5Rとの間に、一対の第２弾性体7L,7Rが所定の圧縮荷重が予め付与された状態でそれぞれ挟持され、可動部の変位が所定値以下のときには、第１弾性体が弾性的に縮み、所定値よりも大きいときには、第１及び第２弾性体の両方が、弾性的に縮む。【選択図】図１
SPRING MECHANISM AND VIBRATION SUPPRESSION DEVICE HAVING SPRING MECHANISM
ばね機構、及びばね機構を備えた振動抑制装置
KIDA HIDENORI (author) / NAKAMINAMI SHIGEKI (author) / TANAKA HISAYA (author)
2017-04-27
Patent
Electronic Resource
Japanese
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