| 摘要 |
A handcuff adapted to guide an inserted foreign metal piece upwardly to a blocking portion, and to be quickly put on a wrist of a criminal person is disclosed. The handcuff includes: a movable arm having a ratchet portion formed with teeth; a pair of fixed arms pivotably connected to the movable arm by a pivot pin and integrally provided with rectangular base bodies; a partition plate disposed between the pair of base bodies of the fixed arms, and provided with bilaterally bent protrusions; a pair of frame plates disposed between the fixed arms and the partition plate, and provided with upwardly inclined surfaces and blocking protrusions; a pair of pawl pieces biasedly supported in the pair of frame plates, and provided with teeth to be engaged with the teeth of the movable arm; and a leaf spring received in the pair of frame plates to bias the pair of pawl pieces toward the movable arm. The most proximal teeth of the teeth include slanting surfaces. When the movable arm is pulled out of the fixed arms, the innermost teeth of the teeth pass over the most proximal teeth of the movable arm, thereby maintaining engagement between the innermost teeth of the pawl pieces and the most proximal teeth of the movable arm.
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