Fritz Gegauf Aktiengesellschaft Bernina-nahmaschinenfabrik

Urs Ruch

Ernst Dreier

Christian Ulmer

A feeder device for a sewing machine containing a stitch plate and provided with a material feeder which reaches through the stitch plate from below, and which is driven by a lift- and thrust rocker along a path made up of four phases. The feeder device further includes a support member and an intermediate rocker. The support member of the material feeder is arranged on the intermediate rocker, which in turn is rotatingly attached to the thrust rocker whereby the horizontal rotational axis of the support member is arranged on the intermediate rocker at a distance from the rotational axis of the intermediate rocker and substantially parallel thereto. The intermediate rocker is, along with the support member, set in vertically oscillating motion and rotated around its rotational axis by a direct connection with the lift rocker which, through proper correction, provides a movement path to the material feeder, made up of the lift and thrust movements consisting of a lift and a thrust component which are transferred to the support member in an approximately rectangular form in the effective area.

Feeder device for a sewing machine

A winding device for a sewing machine including a sewing mechanism connected to a machine drive mechanism, by a coupling which comprises, a sewing machine housing, the winding device being movable to swing into the sewing machine housing and be covered by a lid when not being used. A two-armed hinge support is pivotally disposed on the housing and connected to the lid. One arm of the said two-armed hinge support is connected by a lever mechanism with a support, and the support is pivotally attached to the sewing machine housing for the winding device forming a toggle joint such that when the lid is opened the toggle joint is pushed through and the winding device is brought into its operating position and secured there while the other arm of the two-armed hinge support disengages said coupling between the machine drive mechanism and the sewing mechanism.

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Berlingen, Switzerland

Urs Ruch