To provide a vehicular slope device with excellent durability capable of absorbing a height difference of a road surface by a simple structure.

The vehicular slope device has a base slope and a slide slope slid and expanded to and contracted from the base slope. The base slope can be stopped and retained at an arbitrary development angle from an accommodated state that it is accommodated in the vehicle making a base end connected to a floor of the vehicle as a turning center to a maximum development state that it can be developed in the most sharp slope form to the outside of the vehicle. The slide slope can be stopped and retained at an arbitrary position from the accommodated state that it is slid and accommodated in the base slope in the shortest distance to the maximum stretched state that it can be stretched in the longest distance.

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