US 2020/0031059 A1Published application

Ultrasonic welding member and ultrasonic welding method

AssigneesTsuchiya Co., Ltd., Mitsubishi Heavy Industries, Ltd.

InventorsOsamu YOSHIDA, Hiroaki HAYASHI, Kotaro TSUJI, Hideki HORIZONO, Naomoto ISHIKAWA, Toshiyuki TAKAYANAGI

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Abstract

Disclosed are: an ultrasonic welding member which is independent of a first member and a second member and which is held between a surface to be welded of the first member and a surface to be welded of the second member prior to ultrasonic welding between the surface to be welded of the first member and the surface to be welded of the second member having a shape parallel to or fitted into the surface to be welded of the first member, the ultrasonic welding member characterized by including a thermoplastic resin and satisfying a discontinuous forming requirement, an outside opening requirement, and a bonding place reduction requirement; and an ultrasonic welding method using the ultrasonic welding member. The ultrasonic welding member may include a plurality of streaks at least in a part thereof. The ultrasonic welding member may be a substantially lattice-shaped fabric or textile mesh at least in a part thereof. When the ultrasonic welding member is held between the surface to be welded of the first member and the surface to be welded of the second member, crossing parts of threads of the mesh may form a bonding place between the ultrasonic welding member and the surface to be welded of the first member and a bonding place between the ultrasonic welding member and the surface to be welded of the second member.

Claims10

Dependent claims

An ultrasonic welding member which is independent of a first member and a second member and which is held between a surface to be welded of the first member including a thermoplastic resin and a surface to be welded of the second member including a thermoplastic resin and having a shape parallel to or fitted into the surface to be welded of the first member prior to ultrasonic welding between the surface to be welded of the first member and the surface to be welded of the second member,

the ultrasonic welding member including a thermoplastic resin, and
the ultrasonic welding member being configured such that:
when the ultrasonic welding member is held between the surface to be welded of the first member and the surface to be welded of the second member, bonding places between the ultrasonic welding member and the surface to be welded of the first member and/or bonding places between the ultrasonic welding member and the surface to be welded of the second member are discontinuously present in at least a part of the ultrasonic welding member;
when the ultrasonic welding member is held between the surface to be welded of the first member and the surface to be welded of the second member, all of non-bonding places between the ultrasonic welding member and the surface to be welded of the first member and/or non-bonding places between the ultrasonic welding member and the surface to be welded of the second member are open to an outside of the ultrasonic welding member;
and
when the ultrasonic welding member is held between the surface to be welded of the first member and the surface to be welded of the second member, a ratio of a total area of the bonding places between the ultrasonic welding member and the surface to be welded of the first member to a total area of the non-bonding places between the ultrasonic welding member and the surface to be welded of the first member is less than 1, and/or a ratio of a total area of the bonding places between the ultrasonic welding member and the surface to be welded of the second member to a total area of the non-bonding places between the ultrasonic welding member and the surface to be welded of the second member is less than 1.

3 more elements

An ultrasonic welding method comprising

a step for holding an ultrasonic welding member which is independent of a first member and a second member between a surface to be welded of the first member including a thermoplastic resin and a surface to be welded of the second member including a thermoplastic resin and having a shape parallel to or fitted into the surface to be welded of the first member, and
a step for welding the first member and the second member by applying ultrasonic vibration to the ultrasonic welding member,
wherein the ultrasonic welding member includes a thermoplastic resin, and
in the step for holding the ultrasonic welding member between the surface to be welded of the first member and the surface to be welded of the second member:
the ultrasonic welding member is disposed such that bonding places between the ultrasonic welding member and the surface to be welded of the first member and/or bonding places between the ultrasonic welding member and the surface to be welded of the second member are present discontinuously in at least a part of the ultrasonic welding member;
the ultrasonic welding member is disposed such that all of non-bonding places between the ultrasonic welding member and the surface to be welded of the first member and/or non-bonding places between the ultrasonic welding member and the surface to be welded of the second member are open to an outside of the ultrasonic welding member;
and
the ultrasonic welding member is disposed such that a ratio of a total area of the bonding places between the ultrasonic welding member and the surface to be welded of the first member to a total area of the non-bonding places between the ultrasonic welding member and the surface to be welded of the first member is less than 1, and/or a ratio of a total area of the bonding places between the ultrasonic welding member and the surface to be welded of the second member to a total area of the non-bonding places between the ultrasonic welding member and the surface to be welded of the second member is less than 1.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/488,416Filed 24 Mar 2017
Published: 30 Jan 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification19 codes

B29C 66/1122
Single lapped joints: single lap to lap joints, i.e. overlap joints
B29C 66/232
Said joint lines being multiple and parallel or being in the form of tessellations: said joint lines being multiple and parallel, i.e. the joint…
B29C 65/08
By heating, with or without pressure: using ultrasonic vibrations
B29C 65/4815
Non-reactive adhesives, e.g. physically hardening adhesives: hot melt adhesives, e.g. thermoplastic adhesives