Torque rod

Patent metadata

Field	Value
Publication number	US-11780311-B2
Application number	US-202117543043-A
Country	US
Kind code	B2
Filing date	Dec 6, 2021
Priority date	Dec 8, 2020
Publication date	Oct 10, 2023
Grant date	Oct 10, 2023

Abstract

A torque rod includes a rod body, a large round portion, and a small round portion. The large round portion is provided at one end of the rod body. The small round portion is provided at the other end of the rod body. The large round portion includes an outer portion, an inner portion, and a joint portion. The outer portion has a tubular shape. The inner portion is provided on an inner side of the outer portion and has an annular opening to which an attaching member is attached. The joint portion elastically joins the outer portion and the inner portion. The inner portion includes a base portion and an extending portion. The base portion has the opening formed therein. The extending portion extends from the base portion toward the small round portion. The joint portion is provided between the extending portion and the outer portion.

First claim

What is claimed is:

1. A torque rod comprising:
a rod body;
a first bush that is provided at one end of the rod body; and
a second bush that is provided at the other end of the rod body, wherein
the first bush includes
a tubular outer portion,
an inner portion that is provided on an inner side of the outer portion and has an annular opening to which an attaching member is attached, and
a joint portion that elastically joins the outer portion and the inner portion,

the inner portion includes
a base portion that has the opening formed therein and
an extending portion that extends from the base portion toward the second bush, wherein the extending portion is formed in a substantially triangular shape when seen in an axial direction of the first bush, a vertex of the triangular shape is positioned at the base portion and a side of the triangular shape extends from the vertex to another vertex of the triangular shape while being continuously inclined at a predetermined angle with respect to a longitudinal direction of the torque rod when seen in the axial direction of the first bush, and

the joint portion is provided between the extending portion and the outer portion.

2. The torque rod according to claim 1 , wherein the extending portion has a narrow width on a base portion side and gradually increases in width as the extending portion approaches the second bush.

3. The torque rod according to claim 2 , wherein
an outer surface of the extending portion includes a first extending portion side surface and a second extending portion side surface, to which the joint portion is joined,
an inner surface of the outer portion includes a first outer portion side surface and a second outer portion side surface, to which the joint portion is joined, and
the first extending portion side surface and the first outer portion side surface, and the second extending portion side surface and the second outer portion side surface are formed so as to be parallel to each other.

4. The torque rod according to claim 1 , wherein
the outer portion includes
a first opening portion that accommodates the base portion of the inner portion and
a second opening portion that accommodates the extending portion of the inner portion, and

a width of the first opening portion is smaller than a width of the second opening portion.

5. The torque rod according to claim 1 , wherein the inner portion includes a cutout portion in addition to the opening.

Assignees

• Yamashita Rubber Kk

Inventors

• Kadowaki Hirokazu

Classifications

• B60K5/1208 Primary

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

• F16F3/0873

  of the same material or the material not being specified · CPC title

• F16F15/08 Primary

  with rubber springs {(grommet- or bushing-type resilient mountings F16F1/3732, F16F1/38); with springs made of rubber and metal (arrangement of internal-combustion or jet-propulsion units B60K5/12; mounting of propulsion plants on vessels B63H21/30; mounting of vehicle drivers' cabs B62D33/0604)} · CPC title

• F16F1/3849 Primary

  Mounting brackets therefor, e.g. stamped steel brackets; Restraining links · CPC title

• F16F15/04

  using elastic means (single elements or their attachment F16F1/00 - F16F13/00); {(F16F15/023, F16F15/03 take precedence)} · CPC title