Nose unit for a vehicle-wheel balancing machine
First Claim
1. A vehicle-wheel-balancing-machine nose unit comprising means for balancing any of a plurality of different types of vehicle wheels, wherein said balancing means comprise in combination:
- (a) a hollow body of revolution attached coaxially to a spindle and having an external annular flange designed to serve as a support for the abutting application of a vehicle-wheel rim when the wheel is mounted by means of a centering cone in coaxial relation to said spindle;
a cup housed within the hollow body in coaxial relation to the spindle and urged towards the central opening of the hollow body by a resilient member applied against the end-wall of said hollow body, said cup being adapted to exert a thrust on the cone when said cone is engaged within the rim on the rear side thereof, the direction of said thrust being opposite to the direction of the thrust exerted by an external device for clamping said rim against said hollow body;
(c) and a disk fitted for free rotational displacement within an annular recess in the front face of the annular flange and provided with a series of grooves which are inclined at a predetermined angle with respect to the radii of the disk and which are positioned in such a manner as to be located opposite to corresponding holes formed in the annular flange of the hollow body in respect of a predetermined angular position of said disk, this arrangement being such that a series of crank-plates provided with studs for securing the vehcle-wheel rim can be pivotally mounted on said annular flange when the vehicle wheel to be balanced is to be mounted by means of the wheel-rim holes through which the crank-plate studs are accordingly passed, said studs being equal in number to the holes of said rim.
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Accused Products
Abstract
The nose unit is formed by a hollow body of revolution having an annular flange and attached to a rotatable spindle. A series of crank-plates provided with studs for securing the rim of a vehicle wheel can be pivotally mounted on the annular flange. The crank-plates can then be positioned correctly by means of guiding grooves formed in a disk which is rotatably fitted within the annular flange. A cup acted upon by a spring is housed within the interior of the hollow body and cooperates with a cone for centering a wheel rim having a central bore. Vehicle wheels having rims of the central bore type or of the closed type can be balanced without any need for preliminary disassembly of the disk or of the cup, the centering cone being introduced either on the front side or on the rear side of the rim.
10 Citations
6 Claims
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1. A vehicle-wheel-balancing-machine nose unit comprising means for balancing any of a plurality of different types of vehicle wheels, wherein said balancing means comprise in combination:
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(a) a hollow body of revolution attached coaxially to a spindle and having an external annular flange designed to serve as a support for the abutting application of a vehicle-wheel rim when the wheel is mounted by means of a centering cone in coaxial relation to said spindle;
a cup housed within the hollow body in coaxial relation to the spindle and urged towards the central opening of the hollow body by a resilient member applied against the end-wall of said hollow body, said cup being adapted to exert a thrust on the cone when said cone is engaged within the rim on the rear side thereof, the direction of said thrust being opposite to the direction of the thrust exerted by an external device for clamping said rim against said hollow body;(c) and a disk fitted for free rotational displacement within an annular recess in the front face of the annular flange and provided with a series of grooves which are inclined at a predetermined angle with respect to the radii of the disk and which are positioned in such a manner as to be located opposite to corresponding holes formed in the annular flange of the hollow body in respect of a predetermined angular position of said disk, this arrangement being such that a series of crank-plates provided with studs for securing the vehcle-wheel rim can be pivotally mounted on said annular flange when the vehicle wheel to be balanced is to be mounted by means of the wheel-rim holes through which the crank-plate studs are accordingly passed, said studs being equal in number to the holes of said rim. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification