Doffing apparatus of a high-speed high-stand fabric take-up...

Winding – tensioning – or guiding – Convolute winding of material – With spool loading or coil removal

Reexamination Certificate

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C242S598300

Reexamination Certificate

active

11143436

ABSTRACT:
The present invention discloses a doffing apparatus of a high-speed high-stand fabric take-up device, which is applicable to a fabric take-up device having a higher fabric-storage volume. The doffing apparatus has safety pins and control handles in the side-frame casings of the fabric take-up device. Via shifting the control handles to change the relative positions of the safety pins, the safety pins can be inserted into the rod shafts of the fabric-winding rod so that the coupling between the drive wheels and the rod shafts can be enhanced and the safety of a fabric-winding operation can be promoted. Further, hydraulic cylinders are installed between the side-frame casings of the fabric take-up device and the support brackets sustaining the fabric-winding rod. Via the hydraulic cylinders providing a buffer force for the support brackets, the support brackets can rotate and descend slowly, and the safety of a fabric-doffing operation can be promoted.

REFERENCES:
patent: 5211036 (1993-05-01), Engelfried et al.
patent: 6016987 (2000-01-01), Kohnen
patent: 6276630 (2001-08-01), Mueller et al.
patent: 6637241 (2003-10-01), Wang
patent: 7093466 (2006-08-01), Chen

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