Being main brake cylinder unit for the vehicle brake equipment of main brake cylinder

摘要

As for this invention, as for the part other than that main brake cylinder unit for the vehicle brake gear of the electric liquid pressure type which is not illustrated (10) it regards. The main brake cylinder unit which is proposed by this invention (10), the 2nd piston (22) having been located inside, the 2nd piston (22), you take after the sliding the piston stroke which is decided beforehand, the 1st piston (14) having, it is formed. It was formed at the time of the brake which is operated by external power pressure as set point for the vehicle brake gear of electric liquid pressure type the 1st piston (14) by exclusively, the vehicle brake gear of electric liquid pressure type for the brake, by the muscular strength when losing falling it does, both pistons (14,22) the combined piston surface that it tried it is offered.