Joint structure of a bumper reinforcement and a side member

Patent metadata

Field	Value
Publication number	US-10479301-B2
Application number	US-201715728672-A
Country	US
Kind code	B2
Filing date	Oct 10, 2017
Priority date	Oct 14, 2016
Publication date	Nov 19, 2019
Grant date	Nov 19, 2019

Abstract

A joint structure of a bumper reinforcement and a side member, the joint structure comprising: a bumper reinforcement that is provided at a vehicle front-rear direction end portion of a vehicle so as to extend in a vehicle width direction, and that includes: a vertical wall and a pair of horizontal walls; a left and right pair of side members that are respectively provided at the vehicle inner side of the bumper reinforcement so as to extend in the vehicle front-rear direction with leading ends of the side members fastened to the vertical wall of the bumper reinforcement; and fastening extensions that are provided at the respective leading ends of the side members, that project out toward a vehicle width direction outer side with respect to a respective side member, and that are fastened to at least one of the horizontal walls of the bumper reinforcement.

First claim

What is claimed is:

1. A joint structure of a bumper reinforcement and a side member, the joint structure comprising:
a bumper reinforcement that is provided at a vehicle front-rear direction end portion of a vehicle so as to extend in a vehicle width direction, and that includes:
a vertical wall disposed with a plate thickness direction in a vehicle front-rear direction, and
a pair of horizontal walls provided respectively extending from both vehicle vertical direction end portions of the vertical wall toward a vehicle inner side, substantially along the vehicle front-rear direction;

a left and right pair of side members that are respectively provided at the vehicle inner side of the bumper reinforcement so as to extend in the vehicle front-rear direction with leading ends of the side members fastened to the vertical wall of the bumper reinforcement; and
fastening extensions that are provided at the respective leading ends of the side members, that project out toward a vehicle width direction outer side with respect to a respective side member, and that are fastened to at least one of the horizontal walls and to the vertical wall of the bumper reinforcement.

2. The joint structure of the bumper reinforcement and the side member of claim 1 , wherein:
the left and right pair of side members each have a cross-section profile orthogonal to a side member length direction that is a closed cross-section formed by a side member outer panel disposed at the vehicle width direction outer side and a side member inner panel disposed at a vehicle width direction inner side; and
the fastening extensions are each configured by an upper wall of the side member outer panel, and by an upper wall of the side member inner panel that overlaps with the upper wall of the side member outer panel.

3. The joint structure of the bumper reinforcement and the side member of claim 1 , wherein a bracket including the fastening extensions is attached to respective leading ends of the side members.

4. The joint structure of the bumper reinforcement and the side member of claim 1 , wherein the bumper reinforcement is divided into a plurality of sections disposed along a bumper reinforcement length direction.

5. The joint structure of the bumper reinforcement and the side member of claim 3 , wherein:
the bracket comprises an attachment wall, a front fastening extension, and the fastening extension,
the attachment wall is joined to the side members from the vehicle width direction outer side of the side members, and
the front fastening extension is provided extending from the attachment wall toward the vehicle width direction outer side and is disposed with its plate thickness direction in the vehicle front-rear direction.

6. A joint structure of a bumper reinforcement and a side member, the joint structure comprising:
a bumper reinforcement that is provided at a vehicle front-rear direction end portion of a vehicle so as to extend in a vehicle width direction, and that includes:
a vertical wall disposed with a plate thickness direction in a vehicle front-rear direction, and
a pair of horizontal walls provided respectively extending from both vehicle vertical direction end portions of the vertical wall toward a vehicle inner side, substantially along the vehicle front-rear direction;

a left and right pair of side members that are respectively provided at the vehicle inner side of the bumper reinforcement so as to extend in the vehicle front-rear direction with leading ends of the side members fastened to the vertical wall of the bumper reinforcement; and
fastening extensions that are provided at the respective leading ends of the side members, that project out toward a vehicle width direction outer side with respect to a respective side member, and that are fastened to at least one of the horizontal walls of the bumper reinforcement, wherein
the left and right pair of side members each have a cross-section profile orthogonal to a side member length direction that is a closed cross-section formed by a side member outer panel disposed at the vehicle width direction outer side and a side member inner panel disposed at a vehicle width direction inner side,
a bracket including the fastening extensions is attached to respective leading ends of the side members,
the bracket comprises an attachment wall, a front fastening extension, and the fastening extension,
the attachment wall is joined to the side members from the vehicle width direction outer side of the side members, and
the front fastening extension is provided extending from the attachment wall toward the vehicle width direction outer side and is disposed with its plate thickness direction in the vehicle front-rear direction.

7. A joint structure of a bumper reinforcement and a side member, the joint structure comprising:
a bumper reinforcement that is provided at a vehicle front-rear direction end portion of a vehicle so as to extend in a vehicle width direction, and that includes:
a vertical wall disposed with a plate thickness direction in a vehicle front-rear direction, and
a pair of horizontal walls provided respectively extending from both vehicle vertical direction end portions of the vertical wall toward a vehicle inner side, substantially along the vehicle front-rear direction;

a left and right pair of side members that are respectively provided at the vehicle inner side of the bumper reinforcement so as to extend in the vehicle front-rear direction with leading ends of the side members fastened to the vertical wall of the bumper reinforcement; and
fastening extensions that are provided at the respective leading ends of the side members, that project out toward a vehicle width direction outer side with respect to a respective side member, and that are fastened to at least one of the horizontal walls of the bumper reinforcement,
wherein the left and right pair of side members each have a cross-section profile orthogonal to a side member length direction that is a closed cross-section formed by a side member outer panel disposed at the vehicle width direction outer side and a side member inner panel disposed at a vehicle width direction inner side, and
wherein the fastening extensions are each configured by an upper wall of the side member outer panel, and by an upper wall of the side member inner panel that overlaps with the upper wall of the side member outer panel.

8. The joint structure of the bumper reinforcement and the side member of claim 7 , wherein a bracket including the fastening extensions is attached to respective leading ends of the side members.

9. The joint structure of the bumper reinforcement and the side member of claim 7 , wherein the bumper reinforcement is divided into a plurality of sections disposed along a bumper reinforcement length direction.

10. The joint structure of the bumper reinforcement and the side member of claim 8 , wherein:
the bracket comprises an attachment wall, a front fastening extension, and the fastening extension,
the attachment wall is joined to the side members from the vehicle width direction outer side of the side members, and
the front fastening extension is provided extending from the attachment wall toward the vehicle width direction outer side and is disposed with its plate thickness direction in the vehicle front-rear direction.

Assignees

• Toyota Motor Co Ltd

Inventors

• Iizuka Hiroharu

Classifications

• B60R19/023 Primary

  Details · CPC title

• B60R19/18

  {characterised by the cross-section;} Means within the bumper to absorb impact · CPC title

• B60R19/24 Primary

  Arrangements for mounting bumpers on vehicles · CPC title

• B62D21/02

  comprising longitudinally or transversely arranged frame members · CPC title