Title:
ROTARY VALVE OF INJECTION MOLDING MACHINE
Document Type and Number:
WIPO Patent Application WO/1991/004841
Kind Code:
A1
Abstract:
A rotary valve of an injection molding machine provided with a cylindrical valve chamber formed in the flow passage in which molten resin is filled under pressure and through which molten resin flows from the screw side to the nozzle side, wherein a cylindrical valve body having a through hole radially piercing through the body for ensuring unobstructed flow through the flow passage so that the through hole may agree with the axial line of the cylindrical valve chamber is fitted into the valve chamber slidably around the axial line and circumferential grooves are formed in the circumferential direction on both sides of the through hole and located along the axial line of the cylindrical valve body on the peripheral surface thereof so that even a small driving torque can actuate the cylindrical valve body.
Inventors:
YOKOTA AKIRA (JP)
TANAKA NOBUKAZU (JP)
TANAKA NOBUKAZU (JP)
Application Number:
PCT/JP1990/001236
Publication Date:
April 18, 1991
Filing Date:
September 26, 1990
Export Citation:
Assignee:
KOMATSU MFG CO LTD (JP)
International Classes:
B29C45/23; (IPC1-7): B29C45/23
Foreign References:
| JPH0191514U | 1989-06-15 | |||
| JPH01113218A | 1989-05-01 | |||
| JPS62278008A | 1987-12-02 |
Other References:
See also references of EP 0494304A4
Attorney, Agent or Firm:
Sugiura, Toshiki (4-21 Shinmachi 1-chome, Nishi-K, Osaka-shi Osaka 550, JP)
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