Anti-skid arrangement with protective member
AssigneeVbg Group AB (Publ)
InventorRagnvald Andersson
Life of this patent
Estimating the term…
Abstract
An anti-skid arrangement including a friction wheel with several chains intended to be thrown under a tire in order to increase friction between the tire and the ground, and an operating arm rotatably connected to the friction wheel, wherein the operating arm is adapted to be connected to the vehicle and to bring the friction wheel into frictional engagement with the tire. The anti-skid arrangement also includes a protective member having an inner part arranged around a rotation axis of the friction wheel and between the friction wheel and the operating arm, and an outer part with two side walls abutting against opposite sides of the operating arm. The protective member prevents the chains from getting stuck between the friction wheel and the operating arm, and is simple to produce.
Claims13
An anti-skid arrangement for a vehicle with tires, wherein the anti-skid arrangement comprises:
- a friction wheel having mounted thereon several chains intended to be thrown under a tire in order to increase friction between the tire and the ground, and
- an operating arm rotatably connected to the friction wheel, wherein the operating arm is adapted to be connected to the vehicle and to bring the friction wheel into frictional engagement with the tire,
- wherein:
- a protective member comprising:
- an inner part arranged around a rotation axis of the friction wheel and between the friction wheel and the operating arm, wherein an extension of the inner part in a radial direction is less than 50% of a radius of the friction wheel, and
- an outer part having a longitudinal extension radially away from the rotation axis, wherein a transverse extension of the outer part in a plane perpendicular to the rotation axis is substantially limited to a width of the operating arm parallel to said plane, and wherein the outer part further has two side walls substantially perpendicular to said plane and abutting against opposite sides of the operating arm.
A method for manufacturing a protective member for an anti-skid arrangement, the anti-skid arrangement comprising a friction wheel having mounted thereon several chains intended to be thrown under a tire of a vehicle in order to increase friction between the tire and the ground, the friction wheel further being rotatably connected to an operating arm adapted to be connected to the vehicle and to bring the friction wheel into frictional engagement with the tire, wherein the protective member is mounted at a rotation axis of the friction wheel in order to prevent items being introduced in a space between the friction wheel and the operating arm, wherein the method comprises:
- providing a flat T-shaped piece, the T-shaped piece having a leg and a head, the head having two side portions and an intermediate portion located between the side portions;
- bending the side portions towards each other to form two side walls extending substantially perpendicularly from the intermediate portion;
- and
- forming a hole in the leg.
Dependencies are inferred from the claim text.