Thread storing and feeding device
AssigneeAktiebolaget IRO
InventorKurt Arne Gunnar Jacobsson
Life of this patent
Estimating the term…
Abstract
A thread storing and feeding device, particularly for feeding thread in a sewing machine. The device includes a housing having a storage drum mounted thereon. The thread is tangentially fed onto the drum and is withdrawn over the end thereof. A sliding disc movable in the axial direction of the drum moves the thread supply over the drum. A control device is actuated by the sliding disc for controlling a winding drive. The sliding disc is mounted on a pivot lever, of which the end directed away from the sliding disc is tiltably mounted at a distance from the storage drum axle at least approximately equal to the drum radius.
Claims17
In a thread storing and feeding device, particularly for feeding thread in a sewing machine, comprising a housing, a storage drum mounted thereon, to which drum the thread can be tangentially fed to form a thread supply thereon and from which the thread can be withdrawn overend, a sliding disc movable in the axial direction of the storage drum for moving the thread supply over the drum, and a switching device which can be actuated by the axial movement of the sliding disc for controlling a winding drive which causes thread to be wound on the drum, the improvement wherein the sliding disc is supported on a pivot lever, of which the end directed away from the sliding disc is tiltably supported on the housing by a pivot which is located at a distance from the storage drum axle at least approximately equal to the drum radius so that the sliding disk is movable approximately rectilinearly in the axial direction with respect to the drum.
Dependencies are inferred from the claim text.