Mount structure for vehicle damper and mount installation method for vehicle damper

Patent metadata

Field	Value
Publication number	US-9302561-B2
Application number	US-201214353984-A
Country	US
Kind code	B2
Filing date	Oct 15, 2012
Priority date	Oct 28, 2011
Publication date	Apr 5, 2016
Grant date	Apr 5, 2016

Abstract

A mount structure for a vehicle damper is provided with: an upper damper mount ( 26 ) and a lower damper mount ( 28 ) which grip a body panel ( 16 ) in the vertical direction; a collar member ( 40 ) penetrating through the upper damper mount ( 26 ) and the lower damper mount ( 28 ); a pair of gripping members ( 42 a, 42 b ) for gripping both the upper damper mount ( 26 ) and the lower damper mount ( 28 ) from the outside; a fastening member ( 44 ) for fastening and integrating each of the collar member ( 40 ), the upper damper mount ( 26 ), and the lower damper mount ( 28 ) to a piston rod ( 18 ); and a transmission member ( 46 ) gripped between the upper damper mount ( 26 ) and the lower damper mount ( 28 ) and transmitting to the body panel ( 16 ) an input transmitted from the damper body ( 14 ) side.

First claim

The invention claimed is:

1. A mount structure for a vehicle damper including a damper main body configured by a damper body and a piston rod whose end portion is to be supported by a vehicle body member having a penetration hole through which the piston rod end portion penetrates, the mount structure comprising:
an upper elastic body and a lower elastic body that are configured to be externally fitted to the piston rod and sandwich the vehicle body member;
a collar member that is configured to be externally fitted to the piston rod, penetrates through the upper elastic body and the lower elastic body, and defines a tightening margin of the upper elastic body and the lower elastic body when these components are externally fitted to the piston rod;
a pair of sandwiching members that are provided at end portions along an axial direction of the collar member and respectively sandwich the upper elastic body from an upper side of the upper elastic body and the lower elastic body from a lower side of the lower elastic body;
a fastening member configured to integrally fasten the collar member, the upper elastic body, and the lower elastic body to the piston rod;
a transfer member that is configured to be disposed coaxially with the piston rod and is sandwiched between the upper elastic body and the lower elastic body to transfer vibration force from a damper body side to the vehicle body member, and
a protruding portion configured to protrude from a circumferential marginal portion of the penetration hole of the vehicle body member toward the damper body side, the protruding portion having a penetrating hole through which the piston rod end portion also penetrates and arranged such that an inner circumferential surface of the protruding portion which defines the penetrating hole thereof and faces toward the piston rod is in contact with either of the upper elastic body or the lower elastic body,
wherein the transfer member is sandwiched between the lower elastic body and the protruding portion,
and wherein either the upper elastic body or the lower elastic body includes an extended portion extended along the axial direction of the piston rod and located between the collar member, and at least one of the transfer member and the protruding portion.

2. The mount structure for a vehicle damper according to claim 1 , wherein a surface of the transfer member is provided with an elastic buffer member, the surface of the transfer member facing the protruding portion.

3. The mount structure for a vehicle damper according to claim 1 ,
wherein the piston rod includes a smaller diameter portion formed with a smaller outer diameter than another outer diameter of the piston rod, and a stepped portion provided between an inner end portion along an axial direction of the smaller diameter portion and a side surface of the piston rod having the other outer diameter,
wherein the upper elastic body, the lower elastic body, the collar member, the sandwiching member, and the transfer member are configured to be externally fitted to the smaller diameter portion,
wherein a support member for supporting a lower one of the sandwiching members at the stepped portion is configured to be provided between the stepped portion and the lower one of the sandwiching members,
and wherein the support member is separately formed from the lower one of the sandwiching members or integrally formed with a lower surface of the lower one of the sandwiching members.

4. The mount structure for a vehicle damper according to claim 1 , wherein the vehicle damper is an input separation vehicle damper.

5. The mount structure for a vehicle damper according to claim 1 , wherein the protruding portion is configured to be fixed to the vehicle body member such that protruding portion protrudes from the circumferential marginal portion of the penetration hole of the vehicle body member.

6. The mount structure for a vehicle damper according to claim 1 , wherein the protruding portion is a flat, ring-shaped member.

7. The mount structure for a vehicle damper according to claim 1 , wherein the inner circumferential surface of the protruding portion which defines the penetrating hole thereof is in contact with the extended portion of either the upper elastic body or the lower elastic body.

8. The mount structure for a vehicle damper according to claim 1 , wherein the protruding portion only contacts one of the upper elastic body and the lower elastic body.

9. The mount structure for a vehicle damper according to claim 1 , wherein the protruding portion is directly sandwiched between and in contact with the extended portion of either the upper elastic body or the lower elastic body and the transfer member in a radial direction of the protruding portion.

10. A mount installation method for a vehicle damper including a damper main body configured by a damper body and a piston rod whose end portion is to be supported by a vehicle body member having a penetration hole through which the piston rod end portion penetrates, comprising steps of:
providing a protruding portion to a surface of the vehicle body member facing toward the damper body such that the protruding member protrudes from a circumferential marginal portion of the penetration hole of the vehicle body member toward the damper body, the protruding portion having a penetrating hole through which the piston rod end portion also penetrates,
externally fitting a lower sandwiching member, a collar member, and a lower elastic body to the piston rod, and thereafter externally fitting a transfer member to the lower elastic body from above to construct a lower assembly; and
inserting the lower assembly through the penetration hole of the vehicle body member and the penetrating hole of the protruding portion from below the vehicle body member and the protruding portion such that an inner circumferential surface of the protruding portion which defines the penetrating hole thereof and faces toward the piston rod is in contact with either of the upper elastic body or the lower elastic body, externally fitting an upper elastic body and an upper sandwiching member to the end portion of the piston rod from above the vehicle body member while the piston rod extends through the penetration hole of the vehicle body member, and thereafter fastening a fastening member to a tip on the end portion of the piston rod,
wherein the transfer member is sandwiched between the lower elastic body and the protruding portion, and
wherein either the upper elastic body or the lower elastic body includes an extended portion extended along the axial direction of the piston rod and located between the collar member, and at least one of the transfer member and the protruding portion.

11. The mount installation method for a vehicle damper according to claim 10 , wherein the vehicle damper is an input separation vehicle damper.

12. The mount installation method for a vehicle damper according to claim 10 , wherein the protruding portion is fixed to the vehicle body member such that protruding portion protrudes from the circumferential marginal portion of the penetration hole of the vehicle body member.

13. The mount installation method for a vehicle damper according to claim 10 , wherein the protruding portion is a flat, ring-shaped member.

14. The mount installation method for a vehicle damper according to claim 10 , wherein the inner circumferential surface of the protruding portion which defines the penetrating hole thereof is in contact with the extended portion of either the upper elastic body or the lower elastic body.

15. The mount installation method for a

Assignees

• Honda Motor Co Ltd

Inventors

• ITOU Sumitaka

Classifications

• B60G2204/41

  Elastic mounts, e.g. bushings · CPC title

• B60G13/003

  characterised by the mounting on the vehicle body or chassis of the damper unit · CPC title

• B60G15/067 Primary

  characterised by the mounting on the vehicle body or chassis of the spring and damper unit · CPC title

• B60G2204/128

  Damper mount on vehicle body or chassis · CPC title

• F16F9/58

  Stroke limiting stops, e.g. arranged on the piston rod outside the cylinder (F16F9/49 takes precedence) · CPC title