| 摘要 |
<p>A semi-automatic umbrella includes a telescopic central shaft (20), a handle (10), and a runner (40) slidable along the shaft (20). A first pull cord (66) is placed in a tensed state when the shaft (20) is extended, which causes an upward biased movement of an actuating member (64) to thrust a spring-biased runner-retaining member (62) to disengage from the shaft (10) once the first pull cord (66) is released. A tension spring body (75) coupled to a second pull cord (71) is stretchable to acquire an urging force. The stretched tension spring body (75) enables an upward movement of the runner (40) for spreading the umbrella. Once the urging force is released, a downward movement of the runner (40) causes collapse of the umbrella and disengagement of a spring-biased shaft-retaining member (242) from the shaft (20), thereby permitting folding of the shaft (20) and closing the umbrella.</p> |
