Needle bar coupling in an embroidering machine

Details Needle bar coupling in an embroidering machine Needle bar coupling in an embroidering machine

1980-09-19

1981-09-15

Hunter, H. Hampton

Sewing

Elements

Driving mechanisms

D05B 5516

Patent

active

042890861

ABSTRACT:
A needle bar coupling in an embroidering machine which has a plurality of needle bars driven by separate cranks operated by a drive shaft, comprises a crank which is connected to the needle bar and to the drive shaft to move the needle bar upon rotation of the shaft. For this purpose a coupling or collar is engaged on the shaft and it carries the crank. A pawl is pivoted on the crank and it includes a tooth portion which engages in a groove of the coupling so that the coupling drives the crank when the shaft is rotated. In order to disengage the crank and the needle bar drive a contact member is provided adjacent the pawl which is shifted to engage the pawl and dislodge the tooth of the pawl from the coupling.

REFERENCES:
patent: 3695199 (1972-10-01), Rolauffs et al.
patent: 4064816 (1977-12-01), Spanel et al.
patent: 4098207 (1978-07-01), Peterson

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