Tokai Kogyo Mishin Kabushiki Kaisha

Taichi Fukushima

Ikuo Tajima

Tomoaki Anezaki

Terutada Kojima

Yoichi Mizuguchi

A single bead-shaped piece fed from a storage pipe storing therein a large number of bead-shaped pieces is carried not on a bearing plate but on a support member provided independently from the bearing plate. The support member is arranged movable on the bearing plate in conjunction with forward and backward movement of a feeding member, and also arranged to be moved relative to the feeding member at the time of the forward or backward movement thereof. The support member is provided with a clamping section for clamping the bead-shaped piece, which is adapted to clamp the bead-shaped piece in conjunction with the relative movement of the feeding member and the support member. This permits the bead-shaped piece to be delivered properly from the storage pipe to the sewing position in a stable manner, and hence a sewing machine can reliably sew the bead-shaped piece on a sewing material.

Bead feeder

Rotary hook drive device for a sewing machine includes: a rotary hook rotatably provided on a rotary hook support; a cylindrical grooved cam provided on a drive shaft drivable to rotate in one direction; a cam follower engaged in a cam groove of the cylindrical grooved cam and capable of making reciprocative movement about a support shaft in response to rotation of the cylindrical grooved cam; and a transmission mechanism that transmits the reciprocative movement of the cam follower to the rotary hook to cause the rotary hook to make reciprocative pivoting movement. Such arrangements can prevent deviation in driving timing of the rotary hook and simplify the construction of the rotary hook drive device.

Growing community of inventors

Kasugai, Japan

Taichi Fukushima