Patents Assigned to Maruzen Sewing Machine Co., Ltd.
  • Rotary loop taker for sewing machine
    Patent number: 4108095
    Abstract: A loop taker mechanism and bobbin carrier for a sewing machine in which the bobbin carrier is formed of three components and is journalled in a rotary hook casing. An oscillating escapement yoke has two spaced beaks which cooperate with abutment faces on the carrier to prevent the carrier from rotating. One of the beaks carries an over-hanging guide plate which is wider than the beak and serves to prevent a thread loop from moving behind the beak and fouling the operation of the machine.
    Type: Grant
    Filed: December 1, 1976
    Date of Patent: August 22, 1978
    Assignee: Maruzen Sewing Machine Co., Ltd.
    Inventor: Tadao Kohara
  • Feed mechanism for sewing machine
    Patent number: 4074644
    Abstract: Mechanism in a sewing machine for actuating the feed dog includes a pivoted actuating arm carrying on its distal end a feed dog support which is rockable about a vertical axis and also is slidable vertically. The feed dog support includes an arm which cooperates with an arcuate guideway which controls the attitude of the feed dog support so that the feed dog is maintained in proper work feeding attitude in its horizontal movement. Additional means effect vertical movement of the feed dog support in synchronism with the horizontal movement.
    Type: Grant
    Filed: November 23, 1976
    Date of Patent: February 21, 1978
    Assignee: Maruzen Sewing Machine Co., Ltd.
    Inventors: Kimikazu Matsuda, Yoshihiro Yamaguchi
  • Ornamental stitch sewing machine
    Patent number: 4055128
    Abstract: An ornamental stitch sewing machine has a drive shaft with a first cam mounted on the shaft for axial movement. The cam is tracked by a tracking element. A second cam is adapted to be removably mounted on the shaft in superposed relation to the first cam and when so mounted displaces the first cam so that it is rendered ineffective and the tracking element responds only to the second cam. Upon removal of the second cam the first cam is again rendered effective for tracking by the tracking element.
    Type: Grant
    Filed: February 23, 1976
    Date of Patent: October 25, 1977
    Assignee: Maruzen Sewing Machine Co., Ltd.
    Inventor: Teiichi Nishigami
  • Thread guide means for sewing machine
    Patent number: 4006699
    Abstract: A take-up lever and thread guide for a sewing machine includes a first arm portion and an overlying second arm portion forming an open-ended slot communicating with an aperture spaced from the open end. The second arm portion includes a depending detent spaced from the aperture in the direction of the open end and is adapted to prevent a thread from moving outside of the slot during the operation of the take-up lever.
    Type: Grant
    Filed: November 19, 1975
    Date of Patent: February 8, 1977
    Assignee: Maruzen Sewing Machine Co., Ltd.
    Inventor: Kimikazu Matsuda
  • Sewing machine with slanted bed plate
    Patent number: 3995573
    Abstract: A sewing machine in which the portion of the bed plate disposed forwardly of the needle or operating area is inclined downwardly. This perceptually brings the needle closer to the operator and provides improved visibility of the working area.
    Type: Grant
    Filed: February 17, 1976
    Date of Patent: December 7, 1976
    Assignee: Maruzen Sewing Machine Co., Ltd.
    Inventors: Teiichi Nishigami, Toshiyuki Hayashi
  • Means for mounting sewing machine in cabinet
    Patent number: 3986755
    Abstract: A hinge assembly for mounting a sewing machine in a cabinet. The hinge assembly guides the machine for vertical movement to be selectively supported on the cabinet in two different positions corresponding to free arm and flatbed modes of operation. Additionally, the hinge assembly guides the machine to a position within the cabinet for storage.
    Type: Grant
    Filed: August 25, 1975
    Date of Patent: October 19, 1976
    Assignee: Maruzen Sewing Machine Co., Ltd.
    Inventor: Tadao Kohara
  • Press fit bearing
    Patent number: 3953089
    Abstract: A cylindrical bearing formed of an alloy of powdered metal and arranged to be press fitted into a bearing mounting. The bearing includes a body having an axial bore and is provided between the bore and the periphery thereof with a plurality of circumferentially spaced longitudinally extending through passages arcuate in cross section and concentric with the bore. The body portions outwardly adjacent said arcuate passages are resiliently deformable when the bearing body is pressed into a mounting.
    Type: Grant
    Filed: December 11, 1974
    Date of Patent: April 27, 1976
    Assignee: Maruzen Sewing Machine Co., Ltd.
    Inventor: Susumu Dainin