The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 07, 2020
Filed:
Nov. 14, 2014
Toyoda Iron Works Co., Ltd., Toyota-shi, Aichi, JP;
Rp Topla Limited, Suita-shi, Osaka, JP;
Kunihiro Iwata, Toyota, JP;
Hideaki Sakai, Toyota, JP;
Yasuhiro Sone, Toyota, JP;
Takashi Hirose, Ota, JP;
Kazuhiro Yokobori, Ota, JP;
TOYODA IRON WORKS CO., LTD., Toyota-shi, JP;
RP TOPLA LIMITED, Suita-shi, JP;
Abstract
A method for manufacturing a hollow part with a branch, including a resin filling step of filling a mold, the mold having a main cavity in which a hollowing piece is placed, and a branch cavity to communicate with the main cavity, in which a slide shaft is inserted to advance and withdraw, and that forms a branch pipe portion in an annular space between the branch cavity and the slide shaft, a step of forming a hollow main pipe portion by moving the hollowing piece to force excess resin out of the main cavity, and a shaft removing step of withdrawing the slide shaft to form a branch hollow portion, the hollow part with a branch being made of a resin and having the branch pipe portion integrally connected to the main pipe portion such that the main hollow portion and the branch hollow portion communicate with each other.