Trailer dolly apparatus
OwnerRandal D. Waltoninventor
Life of this patent
Estimating the term…
Abstract
A load-bearing trailer dolly which connects a tongue-type boat, utility or other trailer to a towing tandem trailer and bears weight from the trailer during towing. The trailer dolly is characterized by an axle mounted on a pair of wheels. A dolly frame height-adjustable trailer hitch that receives a primary or a secondary trailer. The adjustable hitch on the trailer dolly allows horizontal leveling. A shock-absorbing spring is fitted between the axle mount and the dolly frame for cushioning the dolly frame on the axle mount as the trailer is towed behind the towing tandem trailer.
Claims13
A trailer dolly apparatus comprising:
- a dolly frame comprising:
- a first fender coupled to a first side of the dolly frame and a second fender coupled to a second side of the dolly frame;
- a plurality of corner supports;
- a first bumper frame and a second bumper frame each coupled to a rear section, the first bumper frame extending upward and coupled to the first fender, a first back section of the first bumper frame comprises a first section of padded material, and the second bumper frame extending upward and coupled to the second fender, a second back section of the second bumper frame comprises a first section of padded material;
- a tongue with a first member, a first support arm, and a second support arm, the first member comprising a sleeve;
- an axle;
- two ground engaging wheels;
- an adjustable trailer hitch comprising a second member, the second member may be positioned in the first member and extend therefrom;
- the adjustable trailer hitch fastens to either a vehicle or a primary trailer, the adjustable trailer hitch comprising a bracket with a channel;
- a towing receiver with a base that is positioned in the channel of the bracket and is adjustably coupleable thereto;
- an adjustable ball hitch removably attachable to the sleeve for pivotally connecting a tongue hitch of the primary trailer or a secondary trailer to the trailer dolly apparatus;
- a shock absorbing mechanism provided between the axle and the dolly frame to absorb shocks from the road;
- and
- an electronic system.
A trailer dolly apparatus comprising:
- a dolly frame comprising:
- a first fender coupled to a first side of the dolly frame and a second fender coupled to a second side of the dolly frame;
- a plurality of corner supports;
- a first bumper frame and a second bumper frame each coupled to a rear section, the first bumper frame extending upward and coupled to the first fender;
- the first bumper frame comprising a first arm, a second arm both spaced apart from each other and coupled to the dolly frame, a third arm perpendicular to and interposed between the first and second arms;
- the first arm, on a first rear surface, comprises a first section of padded material;
- and the second bumper frame extending upward and coupled to the second fender;
- the second bumper frame comprising a fourth arm, a fifth arm both spaced apart from each other and coupled to the dolly frame, a sixth arm perpendicular to and interposed between the fourth and fifth arms;
- the fourth arm, on a second rear surface, comprises a second section of padded material;
- a tongue with a first member, a first support arm, and a second support arm, the first member comprising a sleeve;
- an axle;
- two ground engaging wheels;
- an adjustable trailer hitch comprising a second member, the second member may be positioned in the first member and extend therefrom, the second member comprises a first finger and a second finger;
- the adjustable trailer hitch fastens to either a vehicle or a primary trailer, the adjustable trailer hitch comprising a bracket with a channel;
- a towing receiver with a base that is positioned in the channel of the bracket and is adjustably coupleable thereto;
- an adjustable ball hitch removably attachable to the sleeve for pivotally connecting a tongue hitch of the primary trailer or a secondary trailer to the trailer dolly apparatus;
- a shock absorbing mechanism provided between the axle and the dolly frame to absorb shocks from the road;
- an electronics system comprising tail lights on the first and second fenders, electrical cords that transfer power from the vehicle to the primary trailer or the primary trailer to the secondary trailer, and brake wiring that connect to electric brakes.
Dependencies are inferred from the claim text.