Device to introduce the upper thread into the eye of the needle of a sewing machine
AssigneeFritz Gegauf Aktiengesellschaft Bernina-Nahmaschinenfabrik
InventorNiklaus Wacker
Life of this patent
Estimating the term…
Abstract
A device to introduce the upper thread into the eye of the needle (7) of a sewing machine which includes two guide clips (49, 51) having two inlet sections (53, 55) ending in a narrow point. The two guide clips (49, 51) are generally identical and can spread evenly when encountering the needle. The grasping hook (57) that lies in a plane in the center of the two guide clips (49, 51) is always guided exactly centered into the eye (25) of the needle (7). In addition, the two guide clips (49, 51) are mounted for tilting movement about a horizontal axis (B).
Claims8
A device to introduce an upper thread (63) into an eye (25) of a needle (7) of a sewing machine, comprising a hook (57) to grasp the upper thread (63), two guide clips (49, 51), one located on each side of the hook (57), a swivel arm (29) that holds the hook (57) and the guide clips (49, 51) and that is fastened to a lower end of a rotating guide stem (17) and through which the hook (57) and the guide clips (49, 51) are held and can be moved into and out of an area of the needle (57), the guide clips (49, 51) comprise two first sections (49′, 51′) that are parallel to one another and two second sections that converge together at an angle and are adjacent to the first sections, the second sections transitioning into curved fourth sections (49′″, 51′″) having peaks (S′, S″) that have a smaller distance (a) from one another than the two adjacent first sections (49′, 51′), and the curved fourth sections (49′″, 51′″) are followed by diverging fifth sections (53, 55).
Dependencies are inferred from the claim text.