Patents by Inventor Takaharu Yamaguchi

Takaharu Yamaguchi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4634338
    Abstract: A workpiece conveying apparatus for a working machine including provided with a slider rail arranged vertically on the body of the workpiece conveying apparatus, a drive source, a parallel link consisting of the slider link which is fitted crossing at right angles to and slidably in said slider rail, a slider arm, a lower slider link carrying a work holder and a sub arm and being connected rotatably with each other, a rocking lever being connected to the middle portion of the slider arm rotatably and rocked by a driving mechanism at a predetermined angle, whereby the work holder can convey a workpiece into or out of the specified position along with the intentional locus settled selectively so as to reduce the operating range, and keep a continuous working operation of the working machine, resulting in the durability of the working machine.
    Type: Grant
    Filed: October 25, 1985
    Date of Patent: January 6, 1987
    Assignees: Toyota Jidosha Kabushiki Kaisha, Taiho Seiki Kabushiki Kaisha
    Inventors: Eiji Tsuge, Taminori Yanagisawa, Takaharu Yamaguchi, Hiroshi Fukatsu
  • Patent number: 4574941
    Abstract: A workpiece conveying apparatus for a working machine including provided with a slider rail arranged vertically on the body of the workpiece conveying apparatus, a drive source, a parallel link consisting of the slider link which is fitted crossing at right angles to and slidably in said slider rail, a slider arm, a lower slider link carrying a work holder and a sub arm and being connected rotatably with each other, a rocking lever being connected to the middle portion of the slider arm rotatably and rocked by a driving mechanism at a predetermined angle, whereby the work holder can convey a workpiece into or out of the specified position along with the intentional locus settled selectively so as to reduce the operating range, and keep a continuous working operation of the working machine, resulting in the durability of the working machine.
    Type: Grant
    Filed: April 13, 1984
    Date of Patent: March 11, 1986
    Assignees: Toyota Jidosha Kabushiki Kaisha, Taiho Seiki Kabushiki Kaisha
    Inventors: Eiji Tsuge, Taminori Yanagisawa, Takaharu Yamaguchi, Hiroshi Fukatsu
  • Patent number: 4523670
    Abstract: A reversible drive device rotates a sprocket wheel so that an endless chain engaging said sprocket wheel moves through a vertical path and then in a semicircular path around a chain guide. A workpiece conveyed by a conveyor device from a preceding stage is clamped by a clamping device extending from a base end of a workpiece retaining arm having an outer end connected to said chain. If the workpiece is to be transferred in an inverted orientation, a slider pivotally supporting the base end of the workpiece retaining arm is raised along a slide guide by the chain; then the outer end of the workpiece retaining arm circles around the upper end of the chain guide together with the chain, thereby rotating the workpiece retaining arm by half a turn and inverting the workpiece.
    Type: Grant
    Filed: February 24, 1983
    Date of Patent: June 18, 1985
    Assignees: Toyota Jidosha Kabushiki Kaisha, Taihoo Seiki Co., Ltd.
    Inventors: Taminori Yanagisawa, Takaharu Yamaguchi, Hiroshi Fukatsu
  • Patent number: 4501352
    Abstract: A work-conveying apparatus which conveys a work stably and without fail from the receipt of the work transferred from a conveying apparatus in the previous step to the transfer of the work to a conveying apparatus in the next step.
    Type: Grant
    Filed: March 29, 1983
    Date of Patent: February 26, 1985
    Assignees: Toyota Jidosha Kabushiki Kaisha, Taiho Seiki Kabushiki Kaisha
    Inventors: Taminori Yanagisawa, Takaharu Yamaguchi, Hiroshi Fukatsu