Land vehicles: wheels and axles – Wheel – Detachable wheel section
Patent
1995-01-06
1997-06-10
Stormer, Russell D.
Land vehicles: wheels and axles
Wheel
Detachable wheel section
301 3558, B60B 314
Patent
active
056369050
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a system for central fastening a wheel to a vehicle and more particularly to a system for central fastening a wheel having a central bore to an axle of a vehicle.
There is a common knowledge to fasten wheels to the axle of a vehicle by means of a central fastening. Such kind of lock for a fastening is mainly used in motor sport. Central fastenings and fastenings of spoke wheels which have been known previously have several disadvantages as far as security is concerned. Accordingly, they are rarely used in public traffic.
A system for central fastening a wheel to an adapter flange which is attached to the brake drum or the brake disc of a vehicle via bolts is kown from DE 40 23 912A1. Such known wheel is mounted in that an inner cylindrical hole is set on a flange portion which is also cylindrical and which has a corresponding diameter and is fixed via a thread union. Such thread union comprises an external tapered surface which abuts against an inner bore of the wheel which has a correspondingly tapered form.
It has turned out that such kind of thread union is not sufficiently stable in view of the high dynamic load of the wheel.
It is known from U.S. Pat. No. 1,465,958 to clamp a taper ring between wheel and hub by means of a central safety nut to obtain a frictionally engaged fastening of a wheel to the hub. The inner portion of such known taper ring is formed into a cylindrical shape. This makes the dismounting of the taper rings more difficult, especially in such cases where the taper angle of the external tapered section of the taper ring is small.
It is the object of the invention to provide a system for central fastening a wheel to the axle of a vehicle which can be mounted easily and which provides superior safety as far as loosening of the fastening linkage is concerned.
This object is solved by a system for central fastening a wheel having a central bore to an axle of a vehicle, characterized in that a taper ring is adapted to be clamped between the wheel and a central flange portion of the axle by a central safety bolt or safety nut in order to achieve a frictional engaged fastening of the wheel to the axle. The taper ring is formed as a double taper ring, wherein the inner bore of the wheel and the outer shape of the central flange portion comprise a tapered section corresponding to the double taper ring. According to the present invention, a taper ring is adapted to be clamped between a wheel and a central flange portion of the axle by means of a central safety bolt or safety nut in order to obtain a frictionally engaged fastening of the wheel to the flange. The thread union for fastening the wheel exclusively serves to produce the axial thrust load acting on the taper ring, while the clamping of the wheel against the central flange portion is effected independently via said taper ring, so that loads acting on the taper ring cannot have any direct effect on the thread union.
Between the axle and the wheel there can be provided an adapter flange.
Preferably, the safety bolt comprises an external neck upon which either the clamping of the taper ring is effected directly or, in an alternative embodiment, a thrust plate can be pressed against the taper ring. The thrust plate has the advantage that the neck of the safety bolt can be shaped such that it has a smaller diameter. Moreover, the thrust plate can comprise a recess so that the neck of the safety bolt rests on a step portion of said thrust plate, whereby it is possible to achieve an arrangement wherein the safety bolt is countersinked in the thrust plate.
Preferably, the taper ring comprises a radial slit in order to enable easy clamping of the taper ring between the wheel and the central flange portion.
The adapter flange preferably comprises a central bore having a thread for screwing in the safety bolt, wherein the adapter flange can be screwed together with the brake disc or the brake drum.
Particularly, there can be made provision that the safety bolt comprises a recess distant from the bolt head which has a ra
REFERENCES:
patent: 1465958 (1923-08-01), Wheeler
patent: 1646866 (1927-10-01), Ludwick
patent: 2257237 (1941-09-01), Hecht
LandOfFree
System for central fastening a wheel to a vehicle does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System for central fastening a wheel to a vehicle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for central fastening a wheel to a vehicle will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-760279