초록 ▼

A lifting apparatus preferably for applications in which a floor covering is to be removed and/or installed, has a lever arm and support that provide portions of two interconnected linkages. An interchangeable bracket is raised and lowered by the lifting apparatus. The bracket is provided with singl

A lifting apparatus preferably for applications in which a floor covering is to be removed and/or installed, has a lever arm and support that provide portions of two interconnected linkages. An interchangeable bracket is raised and lowered by the lifting apparatus. The bracket is provided with single-sided and double-sided portions that insert into a partition member to raise the partition when the bracket is raised by the lifting apparatus. A rachet arm is provided by a spring-biased stop member and a serrated portion. The rachet allows the lifting assembly to support the weight of the partition without constant attention, thereby allowing the workers to perform either the removal or installation of a floor covering without an inordinate amount of partition movement.

대표청구항 ▼

A lifting apparatus for raising furnishings, particularly suitable for use during removal and installation of floor covering, comprising: a support member for supporting the lifting apparatus at a distance from a work area, the support member including a generally vertical link member supported on a

A lifting apparatus for raising furnishings, particularly suitable for use during removal and installation of floor covering, comprising: a support member for supporting the lifting apparatus at a distance from a work area, the support member including a generally vertical link member supported on a supporting foot member; a leveraging assembly for a controlled raising and lowering of an item of furnishing, the leveraging assembly including one four-bar linkage including pivoting link members and another four-bar linkage including pivoting and sliding link members, the one and the other four-bar linkages having at least one common link member including a common stationary link member further including the generally vertical link member; a furnishing engaging member carried by the one pivoting four-bar linkage; the other four-bar linkage including an upper link member and a lower control arm link member connected for relative sliding movement by a sliding locking link member, the sliding locking link member comprising a spring-biased stop member, an associated spring for biasing the spring-biased stop member, and one or the other of the upper link member and the lower control arm link member having at least one serration for receiving the spring-biased stop member when the spring-biased stop member is in a biased position, thereby substantially locking the lifting apparatus in a locked position until the stop member is removed from the receiving serration.