| 摘要 |
The handle device includes a frame member and a handle member. The frame member has a pair of longitudinal grooves, while the handle member has two first tubes mounted securely in the longitudinal grooves, at least one of the first tubes being provided with a plurality of longitudinally aligned holes, and a U-shaped handle with two opposed second tubes inserted slidably in the first tubes. A spring-loaded projection member is mounted to the first end of the second tube which is enclosed by the first tube that is formed with the longitudinally aligned holes. A spring-biased actuating lever is mounted pivotally to the U-shaped handle such that a front end of the actuating lever is located nearer to the second tube than a rear end of the same. A rigid connecting stick is disposed inside the second tube and connects the spring-loaded projection member to the front end of the actuating lever. When the lever is at the normal condition, the spring-loaded projection member engages one of the holes of the first tube.
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