Abstract: An alignment device (30) for mounting on a laser mapping machine in place of a tire. The alignment device (30) comprises alignment surfaces S1-S5 which, when mapped by the machine, will provide alignment parameters. Specifically, the mapping of the alignment surface S1 and the mapping of the alignment surface S2 reflect the perpendicularity of the machine's laser relative to the machine's rail in a first direction and a second direction perpendicular to the first direction. The mapping of the alignment surface S2 and the alignment surface S3 will reflect the parallelism of the rail to the machine's shaft in the first and second directions. The mapping of the alignment surface S4 and the alignment surface S5 will reflect radial and out-of-plane wobble.
Type:
Grant
Filed:
September 30, 2002
Date of Patent:
October 12, 2004
Assignee:
Bridgestone/Firestone North American Tire, LLC
Inventors:
Sharon E. Podbielski, John D. Clothiaux
Abstract: A green tire holding device (50) including a horizontal turning spindle (52) which supports and turns a green tire (T) so that no set portion of the tire is constantly subjected to the downward pull of the rest of the tire carcass. The spindle (52) can be programmed to automatically continuously turn the green tire (T) or to automatically turn the green tire (T) at spaced intervals corresponding to desired angular movements. In a tire manufacturing method, the holding device (50) is used to turn the green tire (T) during a pre-curing wait cycle to thereby minimize distortion of the green tire (T).
Type:
Grant
Filed:
August 30, 2000
Date of Patent:
January 6, 2004
Assignee:
Bridgestone/Firestone North American Tire, LLC
Abstract: A green tire holding device (10) including a frame (12), a rod (14) extending horizontally from the frame (12), and a bladder (16) mounted on the rod (14). The bladder (16) is inflatable to an inflated shape so that it contacts a substantial portion of an inner circumference of a green tire (T) to support the green tire during a pre-curing wait cycle. The green tire holding device (10) can comprise a plurality of rods (14), a plurality of bladders (16), and/or a plurality of bladders (16) on each rod (14). The bladders (16) can be inflated at substantially the same time and/or certain bladders (16) can be deflated independently of other bladders (16). In a tire manufacturing method, the loaded green tire storage device (10) is transported to a doping/curing area with the bladders (16) deflated. At the doping/curing area, the tires (T) are removed from the rods (14), doped, and re-hung on the rods (14).
Type:
Grant
Filed:
January 11, 2001
Date of Patent:
December 2, 2003
Assignee:
Bridgestone/Firestone North American Tire, LLC
Abstract: A system (10) for measuring the dynamic orientation of the plane of a wheel (12) on a vehicle (14). The system (10) includes a test surface (16) which rotates with the wheel (12) and a orientation-determining device (18) which is unattached to the vehicle (14). The test surface (16) is positioned in a plane corresponding to the plane of the wheel (12) and the orientation-determining device (18) determines the orientation of the plane of the test surface (12) at a specific point of time while the vehicle is being driven. A processor (20) receives output signals from the orientation-determining device (18) and converts the output signals into data corresponding to the orientation of the wheel plane for the specific instant in time.
Type:
Grant
Filed:
January 11, 2001
Date of Patent:
April 8, 2003
Assignee:
Bridgestone/Firestone North American Tire, LLC
Inventors:
Vladimir Roth, David O. Stalnaker, Stanley J. Olesky, John L. Turner