Bonded body

Patent metadata

Field	Value
Publication number	US-2019375165-A1
Application number	US-201916546503-A
Country	US
Kind code	A1
Filing date	Aug 21, 2019
Priority date	Mar 31, 2017
Publication date	Dec 12, 2019
Grant date	—

Abstract

A bonded body is formed of a first member and a second member. The first member has a first base portion and a first welded portion which protrudes from the first base portion toward the second member side. The second member has a second base portion and a second welded portion which protrudes from the second base portion toward the first member side. In a first region of the joint portion, a first rib formed so as to project from the first base portion toward the second member side covers the first welded portion and the second welded portion from the side. In a second region different from the first region, a second rib formed so as to project from the second base portion toward the first member side covers the first welded portion and the second welded portion from the side.

First claim

1 . A bonded body, comprising:
a first member: and a second member performing a vibration welding with the first member so as to form the bonded body, wherein the first member includes
a first base portion extending along an edge on the second member side of the first member, and
a first welded portion protruding from the first base portion toward a second member side,
the second member includes
a second base portion extending along an edge on the first member side of the second member and disposed to face the first base portion, and
a second welded portion protruding from the second base portion toward a first member side and having a distal end which is vibration welded to the tip of the first welded portion,
a width of the first welded portion is larger than the width of the second welded portion, in a first region of the portion where the first member and the second member are joined, a first rib formed on the first member so as to protrude from the first base portion toward the second member side at a position separated from the first welded portion, covers the first welded portion and the second welded portion from the side, and in a second region different from the first region, in the portion where the first member and the second member are joined, a second rib formed on the second member so as to protrude from the second base portion toward the first member side at a position separated from the second welded portion, covers the first welded portion and the second welded portion from the side.

2 . The bonded body according to claim 1 , wherein
when the bonded body is viewed along a direction from the first member to the second member the first region is a region in which a direction in which the joint portion between the first member and the second member extends is perpendicular to the vibration direction at the time of vibration welding, and the second region is a region in which a direction in which the joint portion between the first member and the second member extends is parallel to the vibration direction at the time of vibration welding.

3 . The bonded body according to claim 1 , wherein
in a connection region connecting the first region and the second region in a portion where the first member and the second member are joined, the first rib and the second rib are formed so that the amount of protrusion of the first rib gradually decreases and the amount of protrusion of the second rib gradually increases from the first region side to the second region side.

4 . The bonded body according to claim 1 , wherein
in the first region, the second rib is formed on the second member, in the second region, the first rib is formed on the first member.

5 . The bonded body according to claim 4 , wherein
a distal end of the first rib and a distal end of the second rib are opposed to each other.

6 . The bonded body according to claim 1 , wherein
two of the first ribs are provided so as to sandwich the first welded portion therebetween, and two of the second ribs are provided so as to sandwich the second welded portion therebetween.

Assignees

• Denso Corp

Inventors

• Sakurada Takashi
• Nakamura Masaya
• Terachi Shota

Classifications

• B29C66/73921

  characterised by the materials of both parts being thermoplastics · CPC title

• B29C66/54

  Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles · CPC title

• B29C66/322

  Providing cavities in the joined article to collect the burr · CPC title

• B29C66/12443

  having the tongue substantially in the middle · CPC title

• B29C66/1312

  Single flange to flange joints, the parts to be joined being rigid (the parts to be joined being flexible B29C66/133) · CPC title