Counterbalancing assembly for folding furniture

摘要

A counterbalancing assembly for an article of folding furniture comprises at least one piston extending between a support assembly and a furniture component, said piston being biased to resist a downward force of gravity acting on the furniture component. An upper mounting bracket secures a first end of the piston to the support assembly, and a lower mounting bracket secures a second end of the piston to the furniture component. One or both of the upper and lower mounting brackets includes a worm gear and a mounting element that is threaded onto the worm gear. Each such mounting element has a portion adapted to engage a complementary fitting defined by a respective end of the piston, such that rotation of the worm gear causes a corresponding linear movement of the mounting element, and thus, linear movement of the respective end of the piston.

主权项

1. A counterbalancing assembly for an article of folding furniture which includes a furniture component that is pivotally secured to a support assembly for movement between a substantially upright storage position and a substantially horizontal use position, said counterbalancing assembly comprising:
at least one piston extending between the support assembly and the furniture component, said at least one piston being biased to resist a downward force of gravity acting on the furniture component; an upper mounting bracket for securing a first end of the at least one piston to the support assembly; and a lower mounting bracket for securing a second end of the at least one piston to the furniture component, said lower mounting bracket including a worm gear and a mounting element that is threaded onto the worm gear, wherein the mounting element has a portion adapted to engage a complementary fitting defined by the second end of the at least one piston, and wherein rotation of the worm gear causes a corresponding linear movement of the mounting element, and thus, linear movement of the second end of the at least one piston relative to the furniture component; wherein the upper mounting bracket includes a plate that defines one or more holes, wherein each of the one or more holes is configured to receive a second mounting element, and wherein the second mounting element has a portion adapted to engage a complementary fitting defined by the first end of the at least one piston.