RU2473448C2 - Automotive trailer - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: invention relates to automotive industry and may be used for cargo haulage by cars. Automotive single-axle trailer with two rigid hitches comprises vertical sides. One rigid hitch is composed of attachment on ball-type towing coupler with towing handle hinged directly to trailer body or frame or coupled therewith without hinge to allow height adjustment. With trailer coupled with car, distance from ball-type towing coupler center to trailer wheel rotational axis is smaller than trailer body width by, at least, 1.1 times. Second rigid hitch is composed of articulated or solid beam secured directly to trailer via hinge to allow variation of position in any plane. On car side, it is secured to emergency towing device or towing coupler beam to retain second end of rigid hitch.

EFFECT: better maneuverability and controllability.

3 cl, 2 dwg

Description

This invention relates to transport engineering and can be used for transportation of goods by car.

The following analogue is known (prototype):

- US 6,644,706 B2 dated 11/11/2003.

The prototype does not have a central towbar. Two beams of fastening to the car are quite spaced on the sides, but at the same time each end of both beams is rigidly fixed on the trailer and the car. This virtually eliminates the vertical movement of the trailer on road bumps, which causes destructive loads on the attachment points of the trailer. Moreover, it is proposed to attach the trailer to the car in such a way with a complex and heavy device, which excludes such a method of fastening on small cars and trailers with the generally accepted method of fastening to a ball. The front side, in the prototype, is close enough to the car, when hitting bumps, it is possible to hit the top of the trailer side against the car.

The invention a car trailer has a formula with one independent clause and is illustrated in one drawing with two figures, which shows a trailer 1, a mechanism for attachment to a towing device (hereinafter TSU) 2, an additional rigid coupling device (hereinafter DSU) 3, a vehicle towing device with ball head 4, the front inclined side of the trailer 5, a vertical beam for mounting the TSU 6 mechanism, the mounting hinge of the DSU 7, the trailer frame 8, the width of the trailer body 9, the length of the trailer body 10, the distance from the center of the towing coupling balls head to the center of the axis of rotation of the trailer wheel 11 (numerical and text expression of which is given only as an example).

As a result of the implementation of this invention, the following technical result is achieved:

- improving the maneuverability of the road train;

- full controllability of the trailer, including when reversing;

- reduction in the total length of the road train;

- exclusion of skidding of the trailer;

- extreme lightness of the trailer;

- comfortable loading and unloading of goods;

- the possibility of comfortable storage of the trailer.

The presented technical result is confirmed by a real test of the manufactured sample.

These tasks are solved:

1. A change in body layout. The length of the trailer body of FIG. 2 of clause 10 is less than its width of FIG. 1 of clause 9. not less than 1.1 times. Thus, the entire dimension of the classic trailer was reoriented: from a "trough" it turned into a "chest of drawers".

2. Lack of drawbar. The vehicle trailer mounting mechanism on the ball towing vehicle hitch (hereinafter TCS) is located directly on the frame or on the trailer body without a drawbar and is fixed through the hinge or without the hinge on the central vertical beam of the trailer with the possibility of changing the mounting height. The distance of FIG. 2 of item 11 is less than the width of the trailer body of FIG. 1 of item 9 no less than 1.1 times. The road train sharply shortened in length becomes more compact and maneuverable.

3. An additional rigid coupling device (hereinafter referred to as DSU), which is a continuous or articulated beam, which is fixed at one end directly to the frame, trailer body, through a hinge, and the second to the emergency towing device of the car in a known manner. The hinge allows you to change the position of the DSU in any plane. It is possible to change the mounting of the control panel on the trailer in height. As a result, the trailer is hooked to the car with two short rigid beams: the towing vehicle through the towing device of the vehicle and the towing vehicle through the emergency towing device of the vehicle, located on the side of the towing vehicle. In the absence of an emergency towing device on the car, this function is assigned to a special device attached to the car. The trailer becomes part of the car and rotates with its rear wheels. The distance of the attachment points of each of the rigid couplers of the TSU and the DSU from the car to the trailer is different.

4. Body shape. The front wall of the trailer, located directly behind the car, is tilted from the car in the opposite direction from the bottom or from any height. In addition to the general aesthetics of "swiftness", this form allows you to avoid hitting the trailer on a towing car when hitting bumps.

5. The trailer body inside is divided by removable shelves, which allows you to place cargo in 3 compartments. At the same time, the underlying load does not crumple. Short in length, it makes it easy to reach the load during loading and unloading. At the same time, the total area of the shelves is comparable in area to trailers of a classic layout with a similar carrying capacity.

The car trailer is easy to manufacture. It is an aluminum construction. A soft covering material is used as the sides. As the power elements of the sides - an aluminum grill. The use of a car trailer does not require special preparation for a large number of car brands: it is enough to have a standard ball hitch towing device and an emergency towing device on the side of the car.

Claims (3)

1. A car trailer containing vertical sides, single-axle, with two rigid couplings to the car, characterized in that one rigid coupling is a mechanism for mounting on a ball towing device of a car without a drawbar mounted directly on the body or frame of the car trailer through a hinge or without a hinge with the possibility of changing the installation in height, while in the state connected to the vehicle, the distance from the center of the ball of the towing device of the vehicle to the center of the axis of rotation of the wheel at EPA is less than the width of the trailer body by at least 1.1 times, and the second rigid coupling is an articulated or continuous beam, which is mounted with the possibility of changing the installation in height, directly on the trailer through a hinge, providing a change of position in any plane, and from the side vehicle to the emergency towing device or to the beam of the towing device, ensuring the retention of the second end of the rigid coupling. 2. A car trailer according to claim 1, characterized in that the rigid couplers of the trailer to the car have different lengths. 3. A car trailer according to claim 1, characterized in that in the absence of a drawbar, in order to prevent an impact on the car, the front side of the trailer has a slope in the direction opposite to the car, starting from the floor of the trailer body.

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