| 摘要 |
A fastener includes first and second fastener units that releasably attach to one another. The first fastener unit includes a ring defining an inclined inner surface that narrows downward. The second fastener unit includes an upper plate defining a notched cylinder configured to abut the inclined inner surface of the ring; a lower plate having a seesaw-type push rod; and a push plate, which is operable by a user to press the push rod such that the push rod presses the ring upward. The push plate has a protrusion configured to press the notched cylinder against the inner surface of the ring when the fastener units are attached to one another, and to release the notched cylinder when the push plate is operated by the user. The first fastener unit may be in a vehicle floor mat, and the second fastener unit may be attached to a vehicle floor carpet.
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