Geometrical instruments – Gauge – Center – point – distance between centers – or centerline location
Reexamination Certificate
2000-01-28
2001-09-04
Hirshfeld, Andrew H. (Department: 2859)
Geometrical instruments
Gauge
Center, point, distance between centers, or centerline location
C033S600000, C033S644000, C033S645000
Reexamination Certificate
active
06282806
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to self-centering arbors, and more particularly to a self-centering arbor for determining positions of axle brackets and other automotive components.
2. Description of the Prior Art
In the evolution of the modern motor vehicles, the quality of the vehicles has become increasingly more important; particularly, the quality of manufacturing of the vehicles. The quality and performance of the vehicles depend in no small part on the quality of manufacturing of an axle assembly. The vehicular axle assembly includes a plurality of various different brackets and bushings having coaxial holes. In assembling the axle components, it is of utmost importance to accurately locate the axle brackets and bushings. The measuring devices currently used in the vehicular axle manufacturing, such as expending arbors, are unable to determine true location and have poor repeatability.
The need therefore exists for a self-centering arbor assembly that accurately and consistently locates axle brackets, bushings and the like in an efficient and inexpensive manner.
SUMMARY OF THE INVENTION
The present invention alleviates the drawbacks of the prior art. The present invention provides a self-centering arbor adapted to locate a hole in a mechanical object having coaxial openings, such as brackets, bushings or the like, with vastly improved accuracy and repeatability.
The self-centering arbor in accordance with the present invention comprises two opposite free floating, spring biased, coaxial, tapered pins mounted in a housing member for engagement with the openings in the axle bracket or the like. The housing includes opposite first and second housings interconnected by a mandrel shaft. Furthermore, two spherical locating members are secured to the housing member and are oppositely aligned on an axis of the tapered pin.
REFERENCES:
patent: 902738 (1908-11-01), Jones
patent: 1936160 (1933-11-01), George
patent: 2030244 (1936-02-01), Cox
patent: 2109976 (1938-03-01), Pierce, Jr.
patent: 2499781 (1950-03-01), Rothenberger
patent: 2766532 (1956-10-01), Eisele
patent: 2884699 (1959-05-01), Eisele
patent: 2994131 (1961-08-01), Gaylord
patent: 3026621 (1962-03-01), Papps et al.
patent: 3753570 (1973-08-01), Espasa
patent: 4062124 (1977-12-01), Albertazzi
patent: 4700488 (1987-10-01), Curti
patent: 4773164 (1988-09-01), Taylor et al.
patent: 4884348 (1989-12-01), Zeller et al.
Altevogt Donald E.
Jackson Teddis L.
Kable Daniel J.
Dana Corporation
Hirshfeld Andrew H.
Liniak Berenato Longacre & White
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