| 摘要 |
A check mechanism is provided to regulate door speed of a roller supported sliding door as the door is manually opened or closed. The mechanism is attached to a door hanger and uses a rocker arm, which slides along a control track. The control track has elevated or offset control regions which cause the rocker arm to apply force to a brake arm through an adjustable spring. The brake arm pivots to apply braking force through a brake pad to a door roller. The control track may contain regions of no control or of lesser control to allow the door to slide freely between opening or closing regions of control. |
