Vibration attenuating spring and damper mechanism using the same spring
AssigneeExedy Corporation
InventorsKanehisa Nagao, Mamoru Ohkubo
Life of this patent
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Abstract
A damper mechanism for attenuating vibrations having a vibration attenuating spring element (1) which includes: a leaf spring (2) having a bent portion (4) and a pair of lever portions (5) extending from both ends of the bent portion (4); and an elastic member (3) disposed between the lever portions (5). When the leaf spring (2) is subjected to compressive forces, the lever portions (5) and the elastic member (3) are elastically deformed. Internal friction is generated in the elastic member (5). The functions typically provided by a conventional elastic member and a conventional resistance generating mechanism are realized by utilizing a simple spring element composed of the leaf spring (2) and the elastic member (3).
Claims17
A vibration attenuating spring comprising:
- a leaf spring having a bent portion and a pair of lever portions extending from respective ends of said bent portion;
- an elastic member disposed within said bent portion being elastic deformable in response to said lever portions being pressed toward one another and
- wherein said elastic member is formed with a contact portion that is in contact with an inner surface of said bent portion of said leaf spring and said elastic member is also formed with a projection portion extending from said contact portion said projecting portion bring race apart from said lever portions with said leaf spring in a compression free state.
A vibration attenuating spring comprising:
- an elongated leaf spring bent into an undulated shape with a plurality of bent portions and a plurality of lever portions where each lever portion extends between corresponding pairs of bent portions defining a repeating sinusoidal-like shape, said bent portions defining two groups of bent portions, a first group of bent portions being defined on a first longitudinal side of said leaf spring and a second group of bent portions defined on a second longitudinal side of said leaf spring;
- a plurality of elastic members disposed only on an inner surface of each of said first group of bent portions, said second group of bent portions being configured without any of said plurality of elastic members, said elastic members being elastically deformable in response to said lever portions being urged toward one another;
- and
- wherein said plurality of elastic members are formed of rubber.
A damper mechanism comprising:
- an input rotary member;
- an output rotary member disposed to be rotatable relative to said input rotary member;
- and
- an elongated leaf spring disposed between said input rotary member and said output rotary member, said elongated leaf spring bent into an undulated shape with a plurality of bent portions and a plurality of lever portions where each lever portion extends between corresponding pairs of bent portions defining a repeating sinusoidal-like shape, said bent portions defining two groups of bent portions, a first group of bent portions being defined on a first longitudinal side of said leaf spring and a second group of bent portions defined on a second longitudinal side of said leaf spring;
- and
- a plurality of elastic members disposed on an inner surface of at least one of said first and second groups of bent portions, said elastic members being elastically deformable in response to said lever portions being urged toward one another.
Dependencies are inferred from the claim text.