Cable And Hook Tackle Patents (Class 294/82.11)
  • Patent number: 6390523
    Abstract: A belt hoist designed to enable a hanging member to be further reliably secured to a belt to provide a further improved safety under load less than a permissible maximum load. In the belt hoist, a winding shaft 44 on which one end portion of a belt 3 is coiled comprises a first shaft 44a and a second shaft 44b, and the one end portion of the belt 3 comprises a first coiling portion 31 coiled on the first shaft 44a to be superposed thereon, a second coiling portion 32 coiled on the first coiling portion 31 to be superposed thereon, a third coiling portion 33 coiled on the second shaft 44b to be superposed thereon, and a fourth coiling portion 34 coiled on the third coiling portion 33 to be superposed thereon.
    Type: Grant
    Filed: March 9, 2001
    Date of Patent: May 21, 2002
    Assignee: Elephant Chain Block Co., Ltd.
    Inventors: Masaru Fujikawa, Koji Saai
  • Patent number: 6371543
    Abstract: A sling capable to easily raise a hanging load such as a drum with a simplified structure. In a chain sling (or a wire sling) in which a master link and hooks are connected with each other via link chains (or wire ropes), lower portions of the hooks are formed to be bent at an angle smaller than 90° and also a bottom portion of the master link is flattened. With this structure, even when the drum has no ring-like protrusion at which an upper lid is mounted, if holes are formed around the side of the drum, the front ends of the hooks can be reliably hooked in the holes to raise the drum. Also, when a lifting portion of a forklift is brought into contact with the flattened bottom portion of the master link, the drum can be easily slung by the forklift as well.
    Type: Grant
    Filed: August 15, 2000
    Date of Patent: April 16, 2002
    Assignee: Elephant Chain Block Co., Ltd.
    Inventors: Masaru Fujikawa, Koji Saai
  • Publication number: 20010052709
    Abstract: A belt hoist designed to enable a hanging member to be further reliably secured to a belt to provide a further improved safety under load less than a permissible maximum load. In the belt hoist, a winding shaft 44 on which one end portion of a belt 3 is coiled comprises a first shaft 44a and a second shaft 44b, and the one end portion of the belt 3 comprises a first coiling portion 31 coiled on the first shaft 44a to be superposed thereon, a second coiling portion 32 coiled on the first coiling portion 31 to be superposed thereon, a third coiling portion 33 coiled on the second shaft 44b to be superposed thereon, and a fourth coiling portion 34 coiled on the third coiling portion 33 to be superposed thereon.
    Type: Application
    Filed: March 9, 2001
    Publication date: December 20, 2001
    Inventors: Masaru Fujikawa, Koji Saai