| 摘要 |
A key operated restraining device is provided to create a securing loop of adjustable dimension. The device comprises a locking head portion, an elongated strap insertable into the locking head portion to form a securing loop of adjustable dimension, a support block disposed in the interior of the head portion, and a pawl member. Both the support block and the pawl member terminate in a spaced relation to an interior wall surface of the head portion and form a slideway for the strap portion. The pawl member is connected to the locking head by a resilient hinge structure biasing the pawl member into a locking position wherein the locking structure is operative to lockably engage a plurality of tooth structures on the strap portion and a release position wherein the locking structure is disengaged from the tooth structures.
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