초록 ▼

In order to be able to use an anti-skid device, particularly for vehicle wheels with pneumatic tires when driven on ice and snow, having a fixing disk, which can be attached to the wheel rim and which remains thereon even when the anti-skid device is not in use, and a supporting disk attachable to t

In order to be able to use an anti-skid device, particularly for vehicle wheels with pneumatic tires when driven on ice and snow, having a fixing disk, which can be attached to the wheel rim and which remains thereon even when the anti-skid device is not in use, and a supporting disk attachable to the fixing disk by a retaining ring and having a plurality of anti-skid arms engaging over the tire tread without great technical expenditure on a large number of vehicles, whose rims have different hole circles and pitches for the rim screws, the fixing disk with a shaped-on hub carries on its side remote from the supporting disk an adaptor disk, which is connected to the fixing disk by screw connections and which has a plurality of radially directed elongated holes in identical and/or several spacings or pitches.

대표청구항 ▼

An adaptor for bolts, nuts or rim screw heads for mounting a fixing disk of an anti-skid device, particularly for vehicle wheels carrying pneumatic tires when driven on ice and snow, said anti-skid device having a fixing disk attachable to the wheel rim and provided with openings for attaching to ri

An adaptor for bolts, nuts or rim screw heads for mounting a fixing disk of an anti-skid device, particularly for vehicle wheels carrying pneumatic tires when driven on ice and snow, said anti-skid device having a fixing disk attachable to the wheel rim and provided with openings for attaching to rim screws or wheel studs, and a supporting disk held and lockable on the fixing disk by means of a retaining ring and having a plurality of equidistant radially directed anti-skid arms formed in a prebent profile from plastic or some other suitable material engaging over the tire tread and provided externally and internally on their free ends with a gripping profile, while having spikes or metal bodies on the outside, wherein the adaptor engaging over the head of a bolt, nut or rim screw comprises a cap-shaped outer part and a cap-shaped inner part, the outer part having fixed grippers for engaging over the inner part, the inner part being provided with a wall, for the formation of holding sections, with longitudinal slots and shape grippers and one of said outer part and said inner part having a tapped hole longitudinally formed therein, whereby, by screwing or pressing the outer part over the inner part in the longitudinal direction of the bolt, rim or rim screw, the shape grippers are pressed against a bolt, nut or rim screw head, for forming a durable, secure connection between the adaptor and the bolt, nut or rim screw head, the connection being detachable and reusable and, by means of the adaptor, different parts can be connected to the bolt, nut, or rim screw head by means of a screw engaging the tapped hole, the outer part of the adaptor having an all-around edge and being provided, on an inner wall side adjacent to said all-around edge, with a first wall surface tapering conically towards the edge, and the inner part has a lower all-around edge and is provided, adjacent to said lower all-around edge on an outer wall side, with a second wall surface conically widening towards the edge, whereby, when the outer and inner parts are joined together, the first conical wall surface presses against the second conical wall surface.