| 摘要 |
The invention relates to a closure (10) for a refueling tank of a motor vehicle. Said closure has a closure cap (11) which can be fixed to a filler neck (12) in a liquid- and gas-tight manner. The upper cap part (16) rests against the pipe surface (22) of the filler neck via an annular sealing surface equipped with a flat packing (21). The entry part (17) axially protrudes from the cap part and can be fixed to the filler neck in an axial direction. The aim of the invention is to provide a simple means, in terms of movement, for reliably achieving an axial connection between the cap part of such a closure and the filler neck. To this end, the entry part (17) is provided with a contacting element (23) which can be reciprocated in relation to an undercut or counter-profile of the filler neck (12).
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