| 摘要 |
A lock includes a hub and a spindle having an end rotatably received in the hub. The hub includes two diametrically disposed protrusions, and the spindle includes two openings. A resilient retaining ring includes a body mounted around the hub. The body includes two distal ends with an opening defined between the distal ends. The body includes two diametrically projections on an inner periphery thereof. The projections are securely received in the openings of the spindle. The resilient retaining ring further includes a tooth on an outer periphery thereof. The tooth is in contact with and thus stopped by one of the protrusions of the hub when the spindle is turned through an angle in either direction, thereby preventing further rotation of the spindle.
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