Torque rod

Patent metadata

Field	Value
Publication number	US-10780768-B2
Application number	US-201816167878-A
Country	US
Kind code	B2
Filing date	Oct 23, 2018
Priority date	Apr 25, 2017
Publication date	Sep 22, 2020
Grant date	Sep 22, 2020

Abstract

A torque rod including: a rod member; and a rubber bushing provided at a lengthwise end of the rod member, wherein the rubber bushing includes an inner axial member, an outer tubular member, and a rubber elastic body connecting the inner axial member and the outer tubular member with each other, the lengthwise end of the rod member is fixed to the inner axial member of the rubber bushing constituted by a part separate from the rod member, and a stopper to limit a relative displacement amount of the inner axial member and the outer tubular member in the rubber bushing is constituted in contact sections of the rod member and the outer tubular member.

First claim

What is claimed is:

1. A torque rod comprising:
a rod member; and
a rubber bushing provided at a lengthwise end of the rod member, wherein
the rubber bushing includes an inner axial member, an outer tubular member, and a rubber elastic body connecting the inner axial member and the outer tubular member with each other,
the lengthwise end of the rod member is fixed to the inner axial member of the rubber bushing constituted by a part separate from the rod member,
a stopper to limit a relative displacement amount of the inner axial member and the outer tubular member in the rubber bushing is constituted in contact sections of the rod member and the outer tubular member, and
the rubber bushing includes lightening spaces provided at opposite sides of the inner axial member in a lengthwise direction of the rod member, and the stopper is constituted in each of the lightening spaces at the opposite sides so that the relative displacement amount of the inner axial member and the outer tubular member is limited at the opposite sides in the lengthwise direction of the rod member.

2. The torque rod according to claim 1 , wherein
the torque rod has another rubber bushing with a different outer dimension from an outer dimension of the rubber bushing, at another lengthwise end of the rod member, and
the outer dimension of the rubber bushing is larger than the outer dimension of the other rubber bushing.

3. The torque rod according to claim 1 , wherein the contact sections located at a lengthwise tip face of the rod member and the outer tubular member of the rubber bushing are opposed via a cushioning rubber in a lengthwise direction of the rod member so that a first stopper is constituted as the stopper.

4. The torque rod according to claim 1 , wherein
an abutting projection configured to be inserted between opposite faces of the inner axial member and the outer tubular member of the rubber bushing is provided in the rod member and located closer to a lengthwise center of the rod member than a portion fixed to the inner axial member of the rubber bushing in the lengthwise end of the rod member is, and
the abutting projection is opposed to the outer tubular member via a cushioning rubber in a lengthwise direction of the rod member so that a second stopper is constituted as the stopper.

5. The torque rod according to claim 4 , wherein the abutting projection expands to both sides in a circumferential direction of the outer tubular member, and the cushioning rubber projects from an inner face of the outer tubular member toward a center of the abutting projection in the circumferential direction.

6. The torque rod according to claim 1 , wherein the outer tubular member of the rubber bushing has a cut-out window opened at an axial end edge thereof, and the rod member fixed to the inner axial member of the rubber bushing is disposed to extend inward and outward of the outer tubular member in a state of being inserted through the cut-out window.

7. The torque rod according to claim 1 , wherein an attachment projecting to an outer peripheral side is provided at the outer tubular member of the rubber bushing.

8. The torque rod according to claim 1 , wherein the end of the rod member is superposed and fixed by bolting to an axial end face of the inner axial member of the rubber bushing.

9. A rod member configured to be attached to a rubber bushing including an inner axial member, an outer tubular member, and a rubber elastic body connecting the inner axial member and the outer tubular member with each other such that the rod member constitutes a torque rod, the rod member for the torque rod comprising, at one lengthwise end thereof:
a fixture to the inner axial member of the rubber bushing; and
a contact section constituting a stopper to limit a relative displacement amount of the inner axial member and the outer tubular member of the rubber bushing by contact of the contact section on the outer tubular member of the rubber bushing,
wherein an abutting projection configured to be inserted between opposite faces of the inner axial member and the outer tubular member of the rubber bushing is provided in the rod member and located closer to a lengthwise center of the rod member than a portion fixed to the inner axial member of the rubber bushing in the lengthwise end of the rod member is, and
the abutting projection is opposed to the outer tubular member via a cushioning rubber in a lengthwise direction of the rod member so that a second stopper is constituted as the stopper.

10. A rubber bushing configured to be mounted at a lengthwise end of a rod member such that the rubber bushing constitutes a torque rod, the rubber bushing comprising:
an inner axial member;
an outer tubular member;
a rubber elastic body connecting the inner axial member and the outer tubular member with each other;
a fixture configured to receive the lengthwise end of the rod member, the fixture being provided in the inner axial member; and
a contact section constituting a stopper to limit a relative displacement amount of the inner axial member and the outer tubular member by contact of the contact section on the rod member, the contact section being provided in the outer tubular member,
wherein the rubber bushing includes lightening spaces provided at opposite sides of the inner axial member in a lengthwise direction of the rod member, and the stopper is constituted in each of the lightening spaces at the opposite sides so that the relative displacement amount of the inner axial member and the outer tubular member is limited at the opposite sides in the lengthwise direction of the rod member.

Assignees

• Sumitomo Riko Co Ltd

Inventors

• Tanaka Shingo
• Hayashi Takashi

Classifications

• 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

• F16F1/3828

  End stop features or buffering (F16F1/3807 takes precedence) · CPC title

• F16F1/3873

  having holes or openings · CPC title

• B60K5/12

  Arrangement of engine supports · CPC title

• B60K5/1241

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