| 摘要 |
A halyard stopper has a locking assembly comprising a spring pawl (27) pivoted within at (28) within a U-section rocker arm (16) and movable between a locking position in which it grips a halyard or other rope (52) (Figure 3, not shown) and a release position. As a shoulder (48) of the lever (18) on raising of the latter clear the free end of the arm (16), the arm rotates upwardly about (10) under the action of a torsion spring (42). This rotates the paw (27) clockwise against the action of its spring (46) as it engages an abutment (26). As a result, the pawl (27) is lifted away from the halyard with little movement in the direction opposite to that of the force acting on the halyard. Should the arm (16) become jammed and the force of the spring (42) be insufficient to lift it clear of the halyard, an arm (54) of the lever (18) will engage the underside of the arm (16) and so raise the arm. <IMAGE> |
