Counterbalance apparatus and/or method for supporting a load
US10066782B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 14, 2015 |
| Grant date | Sep 4, 2018 |
| Priority date | — |
| Expiry date | Jan 14, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16M2200/061
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A counterbalance apparatus for supporting a load includes a base, a load bearing arm, a toggle linkage, and first and second resilient members for applying a force to the load bearing arm. The load bearing arm has pivot points forming a parallelogram linkage, and is adapted to support the load at a distal end. The toggle linkage can include an adjustment member positioned to define a distance relative to the attachment point. The first resilient member is adapted to apply a force to the load bearing arm and may have a first end connected to a first portion of the parallelogram linkage and a second end connected to the adjustment member. Movement of the toggle linkage to the load bearing position engages the forces of the resilient members and movement of the adjustment member varies the distance to adjust a support vector adapted to counterbalance the load vector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.