Trailer brake device

A vehicle towing assembly, comprising in combination:

• a towing vehicle receiver hitch receptacle permanently installed to a towing vehicle;
• a towed vehicle hitch bar providing for the removable attachment of a towed vehicle thereto, and;
• a trailer brake device removably installable to said receiver hitch receptacle of the towing vehicle and to said towed vehicle hitch bar, with said trailer brake device comprising;
• a sleeve including a lateral passage therethrough providing for the removable attachment of said brake device to said receiver hitch receptacle of the towing vehicle, with said sleeve having a rearward end with a brake master cylinder actuator affixed thereto;
• an arbor slidably contained within said sleeve, with said sleeve having a closed forward end and open rearward end, with a compressive spring disposed between said sleeve forward end and said arbor urging said arbor outwardly toward said open rearward end of said sleeve;
• said arbor having a rearward portion with a trailer hitch bar receptacle affixed thereto, with said trailer hitch bar receptacle including a lateral passage therethrough providing for the removable installation of said trailer hitch bar therein and including a brake master cylinder installed thereon;
• said brake master cylinder including a piston therein, with said piston being axially aligned with said brake master cylinder actuator of said sleeve and with said piston having a forward end adjacent said brake master cylinder actuator, and;
• a quickly removable brake line extending from said brake master cylinder to a conventional hydraulic brake system of the towed vehicle, with compressive force applied to said trailer brake device by the towed vehicle during braking of the towing vehicle, serving to actuate said brake master cylinder by said piston of said brake master cylinder being forced against said actuator to produce hydraulic pressure to the towed vehicle brake system by said brake line.