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 porti

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 portions that insert into a partition member to raise the partition when the bracket is raised by the lifting apparatus.

대표청구항 ▼

A lifting apparatus for raising furnishings during removal and installation of floor covering, comprising: means for supporting a lifting apparatus at a distance from a work area; means for leveraging an item to be raised and lowered, the leveraging means supported for pivoting movement by a portion

A lifting apparatus for raising furnishings during removal and installation of floor covering, comprising: means for supporting a lifting apparatus at a distance from a work area; means for leveraging an item to be raised and lowered, the leveraging means supported for pivoting movement by a portion of the supporting means, and the portion of the supporting means providing pivoting support of the leveraging means providing a fulcrum for the leveraging means; a four bar linkage assembly, the linkage assembly formed by the leveraging means and the supporting means, a vertical link member and a lower link member, the vertical link of the four bar linkage assembly moving in a substantially vertical path; means for engaging a portion of the furnishing to be raised, the engaging means carried by the link moving in the substantially vertical path; and means for controlling the position of the leveraging means comprising a combination sliding member sliding relative to the leveraging means and a control arm, the sliding means and control arm providing a complementary four bar linkage in which the supporting means forms a stationary link of the linkage, and the leveraging means forms a link of the linkage, the controlling means further including engagable locking means which when engaged prevents movement of the leveraging means, thereby maintaining the engaging means in a desired position.