# US 11,440,365 B2 · Strut mount

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- Number: US 11,440,365 B2
- Document ID: US11440365B2
- Status: Granted
- Kind: B2
- Application number: 16/634,240
- Filed: 2018-08-02
- Published: 2020-09-03
- Granted: 2022-09-13
- Earliest claimed: 2017-08-10
- Assignees: Prospira Corporation
- Applicants: Prospira Corporation
- Inventors: Masaki Hosoda
- Web page: https://patentgrep.com/patent/US11440365B2

## CPC

- B60G 13/003: {characterised by the mounting on the vehicle body or chassis of the damper unit}
- F16F 9/54: Arrangements for attachment {(grommet-type rubber mounting springs per se F16F1/3732; construction of cylinder ends F16F9/3242; attachments to vehicles B60G13/001, B60G15/00)}
- B60G 15/06: and fluid damper
- B60G 2204/128: Damper mount on vehicle body or chassis
- B60G 2204/41: Elastic mounts, e.g. bushings
- B60G 2204/45: Stops limiting travel
- B60G: VEHICLE SUSPENSION ARRANGEMENTS (air-cushion vehicles B60V; {cycle suspensions B62K25/00})
- F16F: SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION

## Abstract

The presently disclosed strut mount (10) attaches the tip end of a strut rod (S) to a vehicle body side panel (P), where the strut mount (10) includes a cylindrical body (11) attached to the strut rod (S), and a cylindrical main body rubber (12) that is fixed to the cylindrical body (11) and is in contact with the vehicle body side panel (P); the main body rubber (12) is provided with a projection (15) extending in the axial direction of the strut rod (S), which is separated from a main body (13) of the main body rubber (12) by a concave portion (12a) and is connected to the main body (13) by a connecting portion (14) that serves as the bottom of the concave portion (12a); and the minimum thickness (a) of the connecting portion (14) is smaller than the radial thickness (b) of the projection (15).

## Claims

### Claim 1

A strut mount that attaches and supports a tip end of a strut rod of a strut suspension provided on a vehicle to a vehicle body side panel of the vehicle, wherein
the strut mount comprises a cylindrical body attached to the strut rod, and a cylindrical main body rubber that is fixed to an outer peripheral surface of the cylindrical body and is in contact with the vehicle body side panel,
the main body rubber is provided with a projection extending in an axial direction of the strut rod, where the projection is separated from a main body of the main body rubber by a concave portion, and is connected to the main body by a connecting portion that serves as a bottom of the concave portion,
a minimum thickness of the connecting portion is smaller than a radial thickness of the project,
a tip end of the projection of the cylindrical main body rubber is constantly in contact with a bent portion of a rebound stopper metal fitting over an entire circumference of the projection, the rebound stopper metal fitting being fixed to the strut rod above the cylindrical body.

### Claim 2 (depends on 1)

The strut mount according to claim 1, wherein the tip end of the projection is formed in a bifurcated shape having a first contact portion in contact with a rising surface side of the bent portion and a second contact portion in contact with a bottom surface side of the bent portion.

### Claim 3 (depends on 2)

The strut mount according to claim 2, wherein an outer surface between the first contact portion and the second contact portion is formed by a curved surface having a curvature smaller than a curvature of an outer surface of the bent portion.

### Claim 4 (depends on 3)

The strut mount according to claim 3, wherein the first contact portion and the second contact portion are pressed and expanded by the bent portion which is interposed between the first contact portion and the second contact portion.

### Claim 5 (depends on 2)

The strut mount according to claim 2, wherein the bent portion of the rebound stopper metal fitting has a bottom surface and a rising surface which is bent at a substantially right angle and then rise following the bottom surface,
wherein the first contact portion is formed in a ridge shape and extends upward in the axial direction of the strut rod,
wherein the second contact portion is located radially inside of the first contact portion and is formed by protruding upward in the axial direction of the strut rod, and
wherein the tip end of the projection is in contact with the bent portion in such a manner that the first contact portion is in contact with the rising surface and the second contact portion is pressed by the bottom surface from above.

### Claim 6 (depends on 5)

The strut mount according to claim 5, wherein the first contact portion and the second contact portion are pressed and expanded by the bent portion which is interposed between the first contact portion and the second contact portion.

### Claim 7 (depends on 2)

The strut mount according to claim 2, wherein the first contact portion and the second contact portion are pressed and expanded by the bent portion which is interposed between the first contact portion and the second contact portion.