EP 1496265 A4 20101201 - CENTRIFUGAL FAN ROTOR AND METHOD OF MANUFACTURING THE FAN ROTOR
Title (en)
CENTRIFUGAL FAN ROTOR AND METHOD OF MANUFACTURING THE FAN ROTOR
Title (de)
ZENTRIFUGALGEBLÄSEROTOR UND VERFAHREN ZUR HERSTELLUNG DES GEBLÄSEROTORS
Title (fr)
ROTOR DE VENTILATEUR CENTRIFUGE ET PROCEDE DE FABRICATION DE CE ROTOR DE VENTILATEUR
Publication
Application
Priority
- JP 0304244 W 20030402
- JP 2002101078 A 20020403
Abstract (en)
[origin: EP1496265A1] In a method of manufacturing a centrifugal fan rotor comprising a main plate (1), a shroud (2), and a plurality of blades (3, 3, ...) disposed between an outer peripheral part (1a) of the main plate (1) and the shroud (2), a rotor half-finished product (A) comprising the main plate (1) and the blades (3, 3, ...) is formed as an integral molding of synthetic resin and, in addition, the shroud (2) is formed as an integral molding of synthetic resin separately from the rotor half-finished product (A). Thereafter, an engaging claw (5) formed integrally with the shroud (2) is engaged into an engaging part (6) formed in each blade (3) so that the rotor half-finished product (A) and the shroud (2) are united together. As a result, it becomes possible to use inexpensive polypropylene as a material and the reduction in manufacturing costs and the improvement in recycling efficiency are achieved, without having to employ a conventionally-used welding means. <IMAGE>
IPC 1-7
IPC 8 full level
F04D 29/28 (2006.01); F04D 29/62 (2006.01)
CPC (source: EP)
F04D 29/281 (2013.01); F04D 29/626 (2013.01)
Citation (search report)
- [X] GB 1171961 A 19691126 - SMITHS INDUSTRIES LTD [GB]
- [X] JP H07247998 A 19950926 - FUJITSU GENERAL LTD
- [X] JP S5366007 A 19780613 - HITACHI LTD
- [X] US 3811978 A 19740521 - WOODEN J
- [A] US 2962207 A 19601129 - MAYNE ROBERT A
- See references of WO 03087582A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1496265 A1 20050112; EP 1496265 A4 20101201; AU 2003220845 A1 20031027; AU 2003220845 B2 20070809; CN 100582491 C 20100120; CN 1646814 A 20050727; JP 3589243 B2 20041117; JP WO2003087582 A1 20050818; WO 03087582 A1 20031023
DOCDB simple family (application)
EP 03715745 A 20030402; AU 2003220845 A 20030402; CN 03807898 A 20030402; JP 0304244 W 20030402; JP 2003584502 A 20030402