Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
【発明の名称】押出し成形部品
Document Type and Number:
Japanese Patent JP2784790
Kind Code:
B2
Abstract:
PURPOSE:To prevent deformation caused in the case of performing ring processing by molding a reinforcing partition integrally continued to a hollow member in the inside thereof to the direction vertical to the curved direction of a ring while crossing the hollow part. CONSTITUTION:Since a soft plastic molding material having flexibility is utilized and continuously extruded, a reinforcing partition 17 or 18 can be molded simultaneously, integrally and continuously by extrusion. An extrusion member is out into the prescribed length and formed into a ringlike shape while providing a groove 6 to the inside. For example, the ringlike extrusion parts are obtained which have the reinforcing partition 17 or 18 in the direction vertical to the curved direction of the ring by mutually joining the both end faces with an adhesive, etc. Since the reinforcing partition 17 or 18 is provided to the direction vertical to the curved direction of the ring, the extrusion parts can be formed into the ringlike shape in such a state that deformation strain added to the reinforcing partition is made little even when the extrusion member is curved into the ring and also deformation of the cross-sectional shape of the extrusion parts is hardly caused.

Inventors:
SATO AKIHISA
Application Number:
JP7969089A
Publication Date:
August 06, 1998
Filing Date:
March 30, 1989
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
HITACHI SHOMEI KK
International Classes:
B29C53/36; B29C53/40; B29D12/00; B29D24/00; B29C47/00; B29L23/00; B29L24/00; (IPC1-7): B29D24/00; B29C47/00
Domestic Patent References:
JP5055669A