Sewing machine having presser foot lifting device for adjusting a presser foot between first, second, and third positions
AssigneeHusqvarna Aktiebolag
InventorJan-Olof Landen
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AssigneeHusqvarna Aktiebolag
InventorJan-Olof Landen
Estimating the term…
A sewing machine of the type having an electronic control unit is provided with an arrangement comprising a needle mechanism with a needle bar, a presser bar (12) provided with a presser foot (13) and actuated by a resilient means (22) to provide a controllable presser foot pressure on the cloth (28) to be sewn, and a lifting device for adjusting the presser foot between its operative position and an inoperative position spaced from the cloth. According to the invention, the lifting device comprises a power driven lifting lever (15) coacting with the presser bar (12) for adjusting the presser foot (13) between said two positions and a third, operative position, in which the presser foot pressure is relieved, and the lifting lever (15) is operatively connected to said resilient means (22) for controlling the presser foot pressure.
An arrangement in a sewing machine of the type which is provided with an electronic control unit, said arrangement comprising a needle mechanism having a needle bar (10), a presser bar (12) provided with a presser foot (13) and actuated by a resilient means (22) in order to provide a controllable presser foot pressure against a cloth (28) to be sewn, and a lifting device for adjusting the presser foot between a first operative position in which the presser foot pressure is applied to hold the cloth, a second inoperative position spaced from the cloth, and a third operative position in which the presser foot pressure is removed to release the cloth, wherein said lifting device comprises a power-driven lifting lever (15) cooperating with the presser bar (12) to adjust the presser foot (13) between said first, second, and third positions, said lifting lever (15) being operatively connected to said resilient means (22) for controlling the presser foot pressure.
Dependencies are inferred from the claim text.