Rotary dobby
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United States of America Patent
Stats
-
Feb 17, 1987
Grant Date -
N/A
app pub date -
Apr 18, 1985
filing date -
Apr 18, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A rotary dobby for moving a shaft includes a connecting rod connected to the shaft to be moved, the connecting rod having two mutually-opposite wedge detents disposed thereon along a given wedge-detent diametral line, an eccentric disk carried on the connecting rod having a wedge guide extended radially in the eccentric disk, a drive shaft assembly having at least one detent groove formed therein, a coupling wedge disposed between the drive shaft assembly and the eccentric disk, the coupling wedge having an open shifting groove formed therein, two control pieces engageable in the shifting groove, two control rods each being connected to a respective one of the control pieces and being controlled according to a given pattern for pushing one of the control pieces into the shifting groove and for pushing the coupling wedge alternately into the detent groove along the length of the wedge guide when the drive shaft assembly is not rotating and into one of the two wedge detents, and an automatic zero setting device associated with the connecting rod for maintaining the connecting rod and the eccentric disk in a zero position for receiving the coupling wedge.
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