This paper presents an alternative to the converters that currently are being used to harness the energy in the waves of the sea. This is a floating structure, with two deadanchored to the seabed, suitable to be located near the coast in an area with or without the existence of tides. The floating cylinder arranged horizontally following the oscillations of the sea surface and transmitted through arms, the movement of the machinery fitted inside a house mounted on the structure. In the machinery converts the reciprocating motion of the arms in an unidirectional movement to impulse along the axis of an elastic accumulator allows continuous rotary motion of the rotor of an electric generator, as a permanent magnet alternator. Being a floating structure can be accessed maintenance or repair from a boat into the house. Another characteistic of this proposal is that it does not possess elements that will work submerged due to this, watertight components do not need necessarily more difficult to maintain and more expensive.