DIE FOR MOLDING ROLLER

Title:

DIE FOR MOLDING ROLLER

Document Type and Number:

WIPO Patent Application WO/2016/092998

Kind Code:

A1

Abstract:

The invention relates to molding of a roller in which a roller main body is provided integrally on the outer periphery of an axial core member (310), and the objective of the invention is to prevent the generation of a thin burr, and damage to the die, for example. In order to achieve this objective, a die is provided with a first split die (1) and a second split die (2) which can butt against one another or separate from one another at mutually-opposing parting surfaces (1a and 2a). In the first split die (1) and the second split die (2) are formed: supporting portions (11 and 21) which are capable of supporting the axial core member (310) of the roller, and which can be brought into intimate contact with the outer peripheral surface of the axial core member (310), with a moderate surface pressure, when the mold is clamped; a roller main body molding surface (12), a cavity (A) being defined between the axial core member (310) and the roller main body molding surface (12) when the mold is clamped; and recessed portions (14 and 24) which are located at both end portions of the supporting portions (11 and 21) and extend along the parting surfaces (1a and 2a), and which are not in contact with the outer peripheral surface of the axial core member (310) when the mold is clamped, and which penetrate through the supporting portions (11 and 21).

Inventors:

YASUNAGA SHIRO (JP)
WATANABE SHIGERU (JP)
SUZUKI YUTA (JP)

Application Number:

PCT/JP2015/081427

Publication Date:

June 16, 2016

Filing Date:

November 09, 2015

Export Citation:

Click for automatic bibliography generation Help

Assignee:

NOK CORP (JP)

International Classes:

B29C39/10; B29C39/26; B29C45/14; B29C45/26; G03G15/00; G03G15/20

Foreign References:

JP2001239553A	2001-09-04
JPH09314571A	1997-12-09
JPH11125984A	1999-05-11
JP2006116774A	2006-05-11
JPS61182917A	1986-08-15

Other References: