Title:
押出機ウォーム
Document Type and Number:
Japanese Patent JP2008511469
Kind Code:
A
Abstract:
An extruder screw includes a screw shaft with several screw elements which can be or have been detachably slipped onto this shaft, the screw shaft having an external gearing and the screw elements having an internal gearing which engage the external gearing. The profile of the teeth of the external and the internal gearing are asymmetric, whereby in relation to a preferred direction of rotation of the extruder screw, the torque-transferring flanks of the teeth of the external and the internal gearing make a smaller angle with the perpendicular to the axis of rotation than do respective opposing flanks, at the teeth, of the external and internal gearing.
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Inventors:
Peter Dietz
Gunter Sheffer
Iraq Mpende
Sem Turan
Wolfgang Walter
Gunther Ludwig
Gunter Sheffer
Iraq Mpende
Sem Turan
Wolfgang Walter
Gunther Ludwig
Application Number:
JP2007528701A
Publication Date:
April 17, 2008
Filing Date:
August 19, 2005
Export Citation:
Assignee:
LEISTRITZ AG
International Classes:
B29C48/67; B29C48/03; B29C48/395
Domestic Patent References:
| JP2004044660A | 2004-02-12 | |||
| JPH05340463A | 1993-12-21 | |||
| JP2003161361A | 2003-06-06 | |||
| JP2001165280A | 2001-06-19 |
Attorney, Agent or Firm:
Sadao Ikeda