US 11,241,807 B2 · Molded article and manufacturing method for same

Abstract

The purpose of the present invention is to provide a molded article and a manufacturing method for a molded article by which it is possible to mitigate deformation of an opening. The present invention provides a molded article comprising a cylindrical base and an opening provided in the base, wherein a rib is provided adjacent to the opening. The present invention provides a manufacturing method for a molded article that includes a molded body formation step for forming a molded body having a cylindrical portion provided at one end thereof with an occlusion by molding a melted resin, and a cut-off step for cutting off the occlusion by cutting the cylindrical portion, wherein in the cut-off step, the cutting is performed in a state where a side wall of the cylindrical portion is warped in-plane by an external force.

Claims13

Dependent claims

A molded article, comprising a tubular base portion and an opening portion disposed in the tubular base portion,

wherein the tubular base portion has a base wall, a first side wall, a second side wall and an opposite wall,
wherein a peripheral edge of the opening portion has a pair of long-side portion opposite to each other and a pair of short-side portions disposed to be connected to the pair of long-side portion, and
wherein multiple V-groove-shaped first ribs are disposed at edges of the opening portion, along the long-side portion on a side of the first side wall and along the pair of short-side portions.

Dependencies are inferred from the claim text.

Facts

Application

16/337,311Filed 28 Sep 2017

Priority

JP JP2016-18952928 Sep 2016

Published

US 2020/0031011 A130 Jan 2020

Granted

8 Feb 2022

Term ends

Not estimatedThe source records don’t support an estimate.

Classification21 codes

B26F 1/0053
Specially adapted for perforating tubes: by machining, e.g. cutting, grinding, projections on the tube wall
B29C 49/4273
Component parts, details or accessories; Auxiliary operations: auxiliary operations after the blow-moulding operation not otherwise provided for
B29C 44/00
Shaping by internal pressure generated in the material
B29C 44/02
Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles: for…

Molded article and manufacturing method for same

Life of this patent

Molded article and manufacturing method for same

Life of this patent

Abstract

Claims13