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US 6,308,974 B1Granted
Suspension system
AssigneeShowa Corporation
InventorsKenji Hashirayama, Yoshihisa Nakamura
Life of this patent
Estimating the term…
Abstract
A suspension system 10 has one or more protrusive seating portions 21L;22L, on which a coil spring 13 is situated, and is formed in a partly circumferential portion of a spring seat 14L supporting the coil spring 13, and a tapered surface 23L for preventing body warp or bending of the coil spring 13 in a circumferential portion of at least one protrusive seating portion 22L.
Claims10
A suspension system which is interposed between a vehicle body and an axle, and uses a coil spring, comprising:
- two protrusive seating portions, on which a certain length of a bottom surface of the coil spring is seated, being formed with a certain length partly along with a circumferential direction of a spring seat supporting the coil spring, and
- each of said two protrusive seating portions being formed on each of two separate positions in the circumferential direction of said spring seat, between non-seating portions on which said bottom surface of the coil spring does not contact;
- and
- said two protrusive seating portions being disposed at two positions facing each other on the same diameter through the center of the spring seat, and
- at least one of the protrusive seating portions being a tapered surface slanting in a circumferential direction of said spring seat for preventing a body warp of the coil spring.
2 more elements
A suspension system which is interposed between a vehicle body and an axle, and uses a coil spring, comprising:
- two protrusive seating portions, on which an end surface of the coil spring is placed, formed partly in a circumferential portion of a spring seat supporting the coil spring;
- said two protrusive seating portions disposed at two positions facing each other on the same diameter through the center of the spring seat between two non-seating portions which the end surface of the coil spring does not contact;
- at least one of the protrusive seating portions having a taper in a circumferential direction for reducing a body warp of the coil spring.
Dependencies are inferred from the claim text.