| 摘要 |
This invention relates to a gate assembly comprising a gate which is pivotally supported so as to have a pivotal axis of rotation, a helical torsion spring element coiled in or about a shaft having a direction of elongation which is substantially coaxial with the pivotal axis of rotation of the gate, the helical torsion spring element having a first end which is fixed relative to the gate, and a second, distal end, and wherein in use, the helical torsion spring element will either rotate or frictionally engage and thereby lock relative to the shaft depending upon whether a force applied to either of the gate and/or the distal end of the helical torsion spring element causes this to further wind or unwind. An associated clutch assembly for a gate is also disclosed. |
