Vibration isolator

Patent metadata

Field	Value
Publication number	US-9618078-B2
Application number	US-201514640368-A
Country	US
Kind code	B2
Filing date	Mar 6, 2015
Priority date	Mar 6, 2014
Publication date	Apr 11, 2017
Grant date	Apr 11, 2017

Abstract

A vibration isolator includes: a pair of opposing members fixed to a vehicle body of the vehicle to be located on both sides of a protrusion protruding from an outer circumferential edge of the power train in a direction perpendicular to the principal axes of inertia to oppose to each other in the direction about the principal axes of inertia; a precompressed part provided on part of each of the opposing members facing the protrusion to be precompressed by the opposing member and the protrusion in the direction about the principal axes of inertia; and a contacting part provided on part of each of the opposing members facing the protrusion to be spaced from the protrusion, and contacts the protrusion when the power train vibrates in the direction about the principal axes of inertia.

First claim

What is claimed is:

1. A vibration isolator configured to reduce vibration of a power train mounted on a vehicle in a direction about principal axes of inertia of the power train, the vibration isolator comprising:
a pair of opposing members fixed to a vehicle body of the vehicle to be located on both sides of a protrusion in the direction about the principal axes of inertia, the protrusion protruding from an outer circumferential edge of the power train in a direction perpendicular to the principal axes of inertia, so that the opposing members oppose to each other in the direction about the principal axes of inertia;
a precompressed part provided on part of each of the opposing members facing the protrusion to be precompressed by the opposing member and the protrusion in the direction about the principal axes of inertia; and
a contacting part provided on the part of each of the opposing members facing the protrusion to be spaced from the protrusion, and contacts the protrusion when the power train vibrates in the direction about the principal axes of inertia, wherein
the precompressed part and the contacting part are provided on each of the opposing surfaces of the opposing members.

2. The vibration isolator of claim 1 , wherein
the principal axes of inertia extend in a substantially horizontal direction,
a protruding direction of the protrusion intersects with the horizontal direction, and
the precompressed parts and the contacting parts extend in a direction substantially perpendicular to the protrusion.

3. The vibration isolator of claim 2 , wherein
parts of the protrusion facing the opposing members are flat along the protruding direction of the protrusion, and
the precompressed parts extend to be closer to the protrusion than the contacting parts.

4. The vibration isolator of claim 3 , wherein
a gap is formed between the precompressed part and the contacting part provided on the same opposing member.

5. The vibration isolator of claim 1 , wherein
an end of one of the opposing members and an end of the other opposing member on one side in a direction of the principal axes of inertia are coupled by a coupling member, and
a projection for positioning the protrusion in the direction of the principal axes of inertia is formed on part of the coupling member facing the protrusion.

6. The vibration isolator of claim 1 , wherein
each of the pair of opposing members has an end on one side in the direction of the principal axes of inertia, the ends being coupled to each other via a coupling member, and
the opposing members and the coupling member form a U-shaped cross section.

Assignees

• Kurashiki Kako
• Toyota Jidoshokki Kk

Inventors

• Kondo Yoshinori
• Miyake Kazuo
• Uchida Sumio
• Kondo Hidehito

Classifications

• F16F1/44

  loaded mainly in compression · CPC title

• B60K5/1216

  characterised by the location of the supports relative to the motor or to each other (B60K5/1225 takes precedence) · CPC title

• F16F1/373 Primary

  characterised by having a particular shape {(F16F9/58 takes precedence)} · 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

• F16F1/36

  made of rubber or other material having high internal friction, {e.g. thermoplastic elastomers (spring units consisting of several springs F16F3/08)} · CPC title