MOTORIZED POSITIONING APPARATUS FOR A SEATING UNIT

摘要

A motorized positioning apparatus for a seating unit includes a motor assembly that is configured to move a linkage assembly though a series of positions that arrange the seating unit in a closed position, open position, or extended position. The motor assembly attaches directly to a footrest drive link by way of a mounting tube. In addition, the motor assembly may attach either to a base rail of the seating unit or to a rear pivot link by way of a rear mounting tube.

主权项

1. A motorized positioning apparatus for a seating unit, the apparatus comprising:
a set of base rails including a first side base rail, a second side base rail, a front base rail, and a rear base rail, the front and rear base rails being coupled between the first side base rail and the second side base rail, the set of base rails forming at least part of a support base for the seating unit; a pair of seat plates including a first seat plate positioned above the first side base rail and a second seat plate positioned above the second side base rail; a pair of substantially mirror-image linkage assemblies including a first linkage assembly coupling the first seat plate to the first side base rail and a second linkage assembly coupling the second seat plate to the second side base rail, the first and second linkage mechanisms each including:
a footrest-linkage assembly including a plurality of footrest linkages that pivotably adjust to extend and retract a footrest mounting bracket and that include a footrest actuating link coupled to a respective seat plate; anda footrest drive link pivotably coupled to the footrest actuating link; a front motor mounting tube including a first end mounting bracket and a second end mounting bracket, the first end mounting bracket being coupled to a first footrest drive link of the first linkage assembly and the second end mounting bracket being coupled to a second footrest drive link of the second linkage assembly; a motor assembly coupled to the front motor mounting tube and to the rear base rail, the motor assembly including a drive block that slidably traverses a linear actuator, the drive block being coupled to the front motor mounting tube by a tube mounting bracket, the motor assembly including a motor housing pivotably attached to the rear base rail,
wherein the drive block includes a block body having a front terminal end facing away from the motor housing and towards a front end of the linear actuator; andwherein the drive block includes one or more mounting tabs that include a pin-receiving aperture for receiving a fastener attaching the drive block to the tube mounting bracket, the one or more mounting tabs extending from the front terminal end and toward the front end of the linear actuator.