| 摘要 |
A lock device of a retractable handle has a base and a slide movably mounted on the base for movement between a first position and a second position. The slide has two lateral sides on each of which has a lowland portion, an upland portion and a guiding portion between the lowland portion and the upland portion. Two springs exert the slide moving to the first position. A first ball and a second ball are respectively against the lateral sides of the slide. The first ball is moved to the upland portion and the other ball is moved to the lowland portion while the slide is moved to the first position and the first ball is moved to the lowland portion and the second ball is moved to the upland portion while the slide is moved to the second position.
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