Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – Tire body building type
Patent
1994-10-24
1996-02-27
Knable, Geoffrey L.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
Tire body building type
156 96, 156909, 425 17, 425 20, 425 47, B29C 3502, B29D 3052
Patent
active
054945518
ABSTRACT:
Apparatus for forming a tread pattern on a retread tire casing includes a plurality of rigid matrix segments each having a contoured tread pattern thereon. Each matrix segment is removably secured to a respective matrix segment holder. Each matrix segment holder includes guide blocks at the ends thereof, and the matrix segments are arranged in circumferential side-by-side relation. Guide shafts extend through aligned guide bores in adjacent guide blocks of adjacent matrix segment holders for guiding movement of matrix segment between a closed position wherein the matrix segments are in side-by-side abutting relation, and an open position wherein adjacent matrix segments are separated. A spring is received over each end of each guide shaft and captured between a recessed shoulder in the guide block and a threaded nut received over the end of the guide shaft. The springs normally bias the matrix segment into the closed position. In a first embodiment, diverging legs of inverted V-shaped cams extend into diverging bores in adjacent guide blocks for separating the adjacent matrix segments. Outward radial movement of the cams forces the matrix segments apart from the closed position to the open position for receiving a built-up tire casing therein. The compression springs thereafter forcibly return the matrix segments to the closed position wherein the contoured surfaces of the matrix segments are urged against the built up layer of uncured rubber. In a second embodiment, slotted plates extend across adjacent guide blocks for separating the matrix segments.
REFERENCES:
patent: 1368268 (1921-02-01), Legnard
patent: 1429831 (1922-09-01), Barney
patent: 1746763 (1930-02-01), Burdette
patent: 2185542 (1940-01-01), Daniel
patent: 3479693 (1969-11-01), Cantarutti
patent: 3976532 (1976-08-01), Barefoot
patent: 3999907 (1976-12-01), Pappas
patent: 4043725 (1977-08-01), Schmidt
patent: 4588460 (1986-05-01), Magee et al.
patent: 4767480 (1988-08-01), Goldstein
patent: 5342462 (1994-08-01), King et al.
patent: 5354406 (1994-10-01), King et al.
Knable Geoffrey L.
Teknor Apex Company
LandOfFree
Segmented matrix apparatus for forming a tread pattern in a retr does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Segmented matrix apparatus for forming a tread pattern in a retr, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Segmented matrix apparatus for forming a tread pattern in a retr will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1676143