| 摘要 |
A fifth wheel coupling device comprising a latching mechanism operable into and out of a latching state, and a locking system. The locking system comprises a locking device for locking the latching mechanism in a latched state, and wireless communication means for communicating wirelessly with a user device, for example a mobile telephone. The locking system is activatable in responsive to a signal received wirelessly from the user device to operate said locking device.
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