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US 12,427,819 B2Granted
Strut bearing and vehicle strut suspension
AssigneesJtekt Corporation, Nakanishi Metal Works Co., Ltd.
InventorsHiroshi Yano, Ikuhisa Maeda, Yasuhiro Narazaki, Yoshio Horikawa, Shogo Fukada
Life of this patent
Estimating the term…
Abstract
A strut bearing includes an upper case, a lower case, an upper raceway ring held by the upper case, a lower raceway ring held by the lower case, and rolling elements that roll in a space between the upper raceway ring and the lower raceway ring. The upper case has an upper surface on which an annular recess is provided, and the annular recess contains an elastic member fitted thereinto. The elastic member includes a base in the recess and a protrusion protruding from the upper surface of the upper case.
Claims4
A strut bearing comprising:
- an upper case;
- a lower case;
- an upper raceway ring held by the upper case;
- a lower raceway ring held by the lower case;
- and
- rolling elements that roll in a space between the upper raceway ring and the lower raceway ring, wherein
- the upper case has an upper surface on which an annular recess is provided,
- the annular recess contains an elastic member fitted thereinto,
- the elastic member includes:
- a base inside the recess;
- and
- a protrusion protruding from the upper surface of the upper case,
- the upper surface of the upper case includes an annular flat portion located in a radially inside of the recess and an annular flat portion located in a radially outside of the recess, and
- when a compressive force in an axial direction is applied to the strut bearing to compress the protrusion of the elastic member by a protrusion size of the protrusion, a lower surface of an upper support of the strut suspension comes into contact with the annular flat portions in the radially inside and outside of the recess in the upper surface of the upper case.
11 more elements
Dependencies are inferred from the claim text.