EP 1362939 A3 20040331 - Roving feeding apparatus comprising a special worm gear
Title (en)
Roving feeding apparatus comprising a special worm gear
Title (de)
Faserbandzuführeinrichtung mit speziellem Schneckenantrieb
Title (fr)
Dispositif d'alimenation de ruban de fibres avec élément à vis
Publication
Application
Priority
DE 10222291 A 20020518
Abstract (en)
[origin: EP1362939A2] An open-ended spinning assembly has a swivel-action fibre band feed cylinder with a helical gear engaging with a shaft-driven worm gear. The helical gear esp. has an overlain peak profile to ensure immediate engagement by the worm gear. The helical gear (23) is esp. transposed on the shaft (24) with respect to a symmetrical plane (42) at right angles to the drive shaft (24). The plane (42) intersects the lowest point (45) in the overlain gear thread (41), along the drive shaft (24) axis with respect to the worm gear (22) centre axis (44) swivel plane (43). The gear further has a pre-positioning assembly (30) which presents the worm gear (22) in a position which is determined by the distance (x) by which the helical gear (23) is transposed. The worm gear (22) teeth (35) then swivel accurately into the helical gear (22) thread. A worm gear tooth (35) centreline (33) is presented at an angle theta (f) to the worm gear swivel plane (43), as determined by the transposition (x) value. The value theta is calculated using the formula f = sin 72asterisk (x/2)
IPC 1-7
IPC 8 full level
CPC (source: EP US)
Citation (search report)
- [DA] EP 0672767 A1 19950920 - SCHLAFHORST & CO W [DE]
- [A] DE 19960140 A1 20010621 - STAHLECKER FRITZ [DE], et al
- [A] EP 0223422 A2 19870527 - HOLLINGSWORTH UK LTD [GB]
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 1362939 A2 20031119; EP 1362939 A3 20040331; CN 1472377 A 20040204; DE 10222291 A1 20031127; US 2004016224 A1 20040129
DOCDB simple family (application)
EP 03010647 A 20030513; CN 03136749 A 20030519; DE 10222291 A 20020518; US 43972603 A 20030516