公开(公告)号：US10926482B2

公开(公告)日：2021-02-23

申请号：US16071913

申请日：2017-01-07

Applicant: DENSO CORPORATION

Inventor： Kouta Taniguchi ,  Naoto Suzuki

IPC: B29C65/70 ,  B29C65/18 ,  B29C65/56 ,  B29C65/00 ,  B29C65/30 ,  B29L31/00 ,  F02F1/24

Abstract: The welding chip heats and melts the first welded part and the second welded part, and includes a projected part, a first extension part, and a second extension part. The projected part has a tubular shape with a bottom. One end of the tubular shape extending in a predetermined direction opens and the other end of the tubular shape is closed. The projected part is pushed into the first welded part and the second welded part in the predetermined direction from the opening one end of the tubular shape. The first extension part has a shape extending from a tube outer surface of the projected part and extending annularly around the predetermined direction. The second extension part has a shape extending from the first extension part to the opening one end of the projected part in the predetermined direction and extending annularly around the predetermined direction.

公开(公告)号：US10723081B2

公开(公告)日：2020-07-28

申请号：US15571948

申请日：2016-05-18

Applicant: DENSO CORPORATION

Inventor： Atsushi Yasuda ,  Yasunori Kawamoto ,  Naoto Suzuki

IPC: B29C65/02 ,  B29C65/00 ,  B29C65/18 ,  B29C65/78 ,  F01M11/00 ,  F01M11/12 ,  B29L31/34 ,  B29L31/00 ,  B29L31/30

Abstract: A welding method heats and pressurizes a contacting portion, where a first member and a second member made of resin are in contact with each other, by a pressing tool. The welding method has forming a step, forming a recessed portion, crushing a protrusion, and filling the recessed portion. The step is defined between the first member and the second member by providing the protrusion to the first member. The recessed portion is provided in a tip of the pressing tool. The protrusion of the first member is crushed in the recessed portion by being pressed toward the second member using the pressing tool. The recessed portion is filled with the molten portion of the first member and the molten portion of the second member such that a rim of an outer periphery of the recessed portion is dug into the first member and the second member.