Land vehicles – Wheeled – Occupant propelled type
Patent
1995-11-13
1998-05-12
Hurley, Kevin
Land vehicles
Wheeled
Occupant propelled type
280204, 403349, B62K 1302
Patent
active
057495920
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention is a towing device for two- or three-wheel vehicles, with or without an engine.
The known technique includes towing devices that are particularly suitable for being connected with motor vehicles in order to tow cars with engine troubles, caravans or trucks. Said towing devices generally consist of a sort of rudder that is integral with the vehicle to be towed and couples with the towing vehicle by means of a joint connection. The joints are generally such as to make the rotation on two or more axes possible.
The above mentioned towing systems are mainly suitable for operating according to an arrangement of the towed rudder parallel to the roadway, but they cannot stand considerable misalignments between the towed and the towing vehicle. Further, the applicant doesn't know of any towing device particularly suitable for two- or three-wheel vehicles, like for example a towing device for children's bicycles to be towed by adults with larger bicycles.
SUMMARY OF THE INVENTION
The aim of the invention is the implementation of a towing device particularly suitable for two- or three-wheel vehicles, which should be easily mounted and dismounted on/from both the towed and the towing vehicle.
In particular, the invention is aimed at carrying out a device in which the pins connecting the towing bar/s with the towed and the towing vehicle should be extremely easy to connect with said vehicles, without requiring the employ of particular equipment.
Another aim to be achieved is the implementation of a towing device provided with joints, in such a way as to make for the towing between two vehicles with the towing vehicle being larger than the towed one. All the above mentioned goals and other goals the will be better highlighted further on are achieved by means of a towing device for two- or three-wheel vehicles with or without engine, which, according with claim 1), comprises: connected by means of at least one coupling articulation in such a way as to make for the rotation of one bar with respect to the other according to the alignment axis of said bars; axis of said hubs being perpendicular to the rotation axis of said hubs themselves and said rotation axis being perpendicular to the longitudinal axis of said bars; provided with elements that can be removed and connected with the frame of the towed vehicle; connected with the rear part of the towing vehicle.
According to a practical application, the towing device that is the object of the invention comprises two contiguous bars connected with each other by means of a coupling articulation including a bearing, the outer ring of which is connected with the end of one of said bars and the inner ring of which is connected with the end of the other bar.
According to another application the device object of the invention consists of two contiguous bars connected with each other by means of a male coupling fixed at the end of one of said bars, which in turn couples with the inner part of a cavity belonging to a female coupling fixed to the end of the other bar. Said female coupling is provided with walls that develop peripherally along part of its perimeter in opposition against corresponding elements belonging to the male coupling, said elements being suitable for ensuring the uncoupling of the bars from each other when the rotation angle between the male and female coupling exceeds the maximum fixed value.
To advantage, according to this application, when the towing device inclines with respect to the vertical direction of a given angle considered dangerous, the uncoupling of the two bars connecting the vehicles takes place automatically.
BRIEF DESCRIPTION OF THE DRAWINGS
Further characteristics and details will be better highlighted in the description of two preferred embodiments of the invention given by way of explanation only, but which is not meant to limit the scope of the invention, such as it is illustrated in the enclosed tables of the drawings, where:
FIG. 1 shows two bicycles and the towing device that is the objec
REFERENCES:
patent: 1855172 (1932-04-01), Hess
patent: 2317729 (1943-04-01), Bruno
patent: 4619549 (1986-10-01), Gilbreth
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