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US 4,362,188 AGranted
Rotary dobby
AssigneeMaschinenfabrik Carl Zangs Aktiengesellschaft
InventorsPaul Surkamp, Josef Brock
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AssigneeMaschinenfabrik Carl Zangs Aktiengesellschaft
InventorsPaul Surkamp, Josef Brock
Estimating the term…
The invention relates to a rotary dobby having a wedge coupling between a drive shaft and an eccentric device for the harness motion, in which the wedge is displaceably supported in a radially extending recess in an eccentric disk arranged in a crank arm and can be coupled and uncoupled in accordance with a pattern in an axially extending groove of the drive shaft at two diametrically opposite coupling locations by a shift rod which is controllable in accordance with a pattern and engages by a coupling member into a groove of the wedge which is open in axial direction of the drive shaft. In order to assure a dependable coupling and uncoupling at high speeds of revolution, the wedge is locked against displacement in its coupled position by a spring-biased locking pawl on the eccentric disk and the locking pawl is displaceable by the coupling member of the shift rod into a position which permits the uncoupling of the wedge.
In a rotary dobby having a wedge coupling between a drive shaft and an eccentric device for a harness movement, the wedge being displaceably mounted in a radially extending recess in an eccentric disc mounted in a crank arm and couplable and uncouplable in accordance with a pattern in an axially extending groove of the drive shaft at two diametrically opposite coupling locations by a shift rod which is controlable in accordance with the pattern and engages with a coupling member of the shift rod into a groove of the wedge which is open in an axial direction of the drive shaft, the improvement comprising
Dependencies are inferred from the claim text.