Strut bearing device, and vehicle strut suspension

Patent metadata

Field	Value
Publication number	US-2023128517-A1
Application number	US-202217937904-A
Country	US
Kind code	A1
Filing date	Oct 4, 2022
Priority date	Oct 22, 2021
Publication date	Apr 27, 2023
Grant date	—

Abstract

In a strut bearing device, an upper spring sheet made of steel has a cylindrical part and a disc part. The cylindrical part has, at an upper part thereof, an engagement hole penetrated in a radial direction. A lower case of a strut bearing has a cylindrical member fitted along an inner peripheral surface of the upper part of the cylindrical part. The cylindrical member has, at its outer peripheral surface, an engagement projection that is engaged with an engagement hole. Relative movement of the upper spring sheet and the lower case in an axial direction and in a circumferential direction is restricted in a state where the engagement projection is engaged with the engagement hole.

First claim

What is claimed is:

1 . A strut bearing device comprising:
a strut bearing; and an upper spring sheet that is a spring support component supporting an upper end of a coil spring, wherein the strut bearing includes:
an upper case and a lower case;
an upper raceway ring held by the upper case;
a lower raceway ring held by the lower case; and
a rolling element that rolls between the upper raceway ring and the lower raceway ring,
the upper case and the lower case are made of a synthetic resin, the upper spring sheet is made of steel, the upper spring sheet has a cylindrical part and a disc part, the cylindrical part has, at an upper part thereof, one of an engagement hole penetrated in a radial direction and an engagement recess having a hollowed inner peripheral surface, the lower case has a cylindrical member fitted along an inner peripheral surface of the upper part of the cylindrical part, the cylindrical member has, at an outer peripheral surface thereof, an engagement projection engaged with the engagement hole or the engagement recess, and relative movement of the upper spring sheet and the lower case in an axial direction and in a circumferential direction is restricted in a state where the engagement projection is engaged with the engagement hole or the engagement recess.

2 . The strut bearing device according to claim 1 , wherein
the engagement projection of the lower case has a top face that is a substantially horizontal surface or a side face of a column extending in a substantially horizontal direction, and the engagement projection has a bottom face that is an inclined face reducing a diameter thereof as approaching a lower side.

3 . A strut bearing device comprising:
a strut bearing; and an upper spring sheet that is a spring support component supporting an upper end of a coil spring, wherein the strut bearing includes:
an upper case and a lower case;
an upper raceway ring held by the upper case;
a lower raceway ring held by the lower case; and
a rolling element that rolls between the upper raceway ring and the lower raceway ring,
the upper case and the lower case are made of a synthetic resin, the upper spring sheet is made of steel, the upper spring sheet has a cylindrical part and a disc part, and the cylindrical part has, at an upper part thereof, an engagement projection that projects in a radially inward direction, the lower case has a cylindrical member fitted along an inner peripheral surface of the upper part of the cylindrical part, the cylindrical member has one of an engagement hole penetrated in a radial direction and an engagement recess that has a hollowed outer peripheral surface, the engagement hole and the engagement recess being engaged with the engagement projection, and relative movement of the upper spring sheet and the lower case in an axial direction and in a circumferential direction is restricted in a state where the engagement hole or the engagement recess is engaged with the engagement projection.

4 . A vehicle strut suspension comprising the strut bearing device according to claim 1 .

Assignees

• Nakanishi Metal Works Co

Inventors

• Shibata Kohei
• Narazaki Yasuhiro
• Fukada Shogo

Classifications

• F16C2326/05

  Vehicle suspensions, e.g. bearings, pivots or connecting rods used therein · CPC title

• B60G2204/418

  Bearings, e.g. ball or roller bearings · CPC title

• B60G15/068

  specially adapted for MacPherson strut-type suspension · CPC title

• F16C19/10 Primary

  for axial load mainly · CPC title

• B60G2204/128

  Damper mount on vehicle body or chassis · CPC title