Patents Assigned to Foralkranar AB
  • Patent number: 3995756
    Abstract: A load handling apparatus including a frame, an apparatus head mounted on the frame and rotatable in a horizontal plane and an arm mounted on the apparatus head. The arm has an inner portion which is in the form of a parallelogram linkage with two parallel longitudinal links which are swingable in a vertical plane relative to the apparatus head and are connected by joints, at their ends, to an outer transverse link and an inner transverse link parallel thereto. The arm also has an outer portion which is an extension of the transverse outer link of the inner portion and supports, at its outer extremity, a holder for a load. The joint between the inner transverse link and a first of the longitudinal links is adjustable in a vertical direction by shifting relative to the apparatus head.
    Type: Grant
    Filed: July 21, 1975
    Date of Patent: December 7, 1976
    Assignee: Foralkranar AB
    Inventor: Odd Werner Hjelm