Torque rod

Patent metadata

Field	Value
Publication number	US-11820232-B2
Application number	US-202117481075-A
Country	US
Kind code	B2
Filing date	Sep 21, 2021
Priority date	Sep 23, 2020
Publication date	Nov 21, 2023
Grant date	Nov 21, 2023

Abstract

A torque rod includes: a rod body; a first coupling section provided at one end in an X-axis direction as a longitudinal direction of the rod body and having a first center axis along a Y-axis direction orthogonal to the X-axis direction; and a second coupling section provided at the other end in the X-axis direction of the rod body and being larger than the first coupling section. The first coupling section includes: an outer member having a cylinder shape connected to the rod body; an inner member provided in the center of the outer member; and an elastic member to elastically join the outer member with the inner member, and the elastic member has a spring constant in a Z-axis direction orthogonal to the X-axis direction and the Y-axis direction smaller than a spring constant in the X-axis direction.

First claim

What is claimed is:

1. A torque rod comprising:
a rod body which is an elongated member;
a first coupling section provided at one end in an X-axis direction as a longitudinal direction of the rod body and having a first center axis along a Y-axis direction orthogonal to the X-axis direction; and
a second coupling section provided at the other end in the X-axis direction of the rod body and being larger than the first coupling section,
wherein the first coupling section includes:
an outer member having a cylinder shape connected to the rod body;
an inner member provided in the center of the outer member; and
an elastic member to elastically join the outer member with the inner member,

wherein the elastic member has a spring constant in a Z-axis direction orthogonal to the X-axis direction and the Y-axis direction smaller than a spring constant in the X-axis direction.

2. The torque rod as claimed in claim 1 ,
wherein, when it is assumed that a minimum length in the Y-axis direction of the elastic member located between the outer member and the inner member, in a cross-section cut by a plane including the first center axis and being in parallel to the Z-axis direction, is L 1 , and a minimum length in the Y-axis direction of the elastic member located between the outer member and the inner member, in a cross-section cut by a plane including the first center axis and being in parallel to the X-axis direction, is L 2 , L 1 is smaller than L 2 .

3. The torque rod as claimed in claim 1 , wherein the elastic member has a bore section formed to be recessed or to penetrate in the Y-axis direction, on an outer side in the radial direction of the inner member, as viewed in the Z-axis direction.

4. The torque rod as claimed in claim 1 , wherein, when it is assumed that a thickness in the Z-axis direction of the elastic member located between the outer member and the inner member, in a/the cross-section cut by a plane including the first center axis and being in parallel to the Z-axis direction, is T 1 , and a thickness in the X-axis direction of the elastic member located between the outer member and the inner member, in a/the cross-section cut by the plane including the first center axis and being in parallel to the X-axis direction, is T 2 , T 1 is greater than T 2 .

5. The torque rod as claimed in claim 1 , wherein the inner member has an outer peripheral surface on an outer side in the radial direction of the inner member, as viewed in the Z-axis direction, the outer peripheral surface having a recess formed to have an outer surface of the inner member recessed inward in the radial direction with respect to the outer peripheral surface.

Assignees

• Yamashita Rubber Kk

Inventors

• Kadowaki Hirokazu

Classifications

• B60K5/1208 Primary

  Resilient supports (B60K5/1241 - B60K5/1291 take precedence) · CPC title

• B60K5/1241 Primary

  Link-type support (B60K5/125, B60K5/1275 take precedence) · CPC title

• F16F1/374 Primary

  having a spherical or the like shape · CPC title

• F16F1/3732

  having an annular or the like shape, e.g. grommet-type resilient mountings · CPC title

• F16F1/377

  having holes or openings ({F16F1/37} , F16F1/387 take precedence) · CPC title