Tire building apparatus
AssigneeNational-Standard Company
InventorEdwin F. Mallory
Life of this patent
Estimating the term…
Abstract
A tire building apparatus having main frame means, and rotatable tire building drum means supported by the main frame means. A pair of tire bead placing and end ply bag turn-up ring means are supported on the main frame means and are movable axially inwardly and outwardly longitudinally of the drum means. Positive stop means are carried by the main frame means and are engageable by the ring means for locating the latter in precise predetermined inward bead set positions.
Claims17
In tire building apparatus, the combination of main frame means comprises a base frame portion, a rear frame portion integral with said base frame portion and having substantial longitudinal length, and an auxiliary frame portion;
- rotatable tire building drum means supported by said auxiliary frame portion on a longitudinal axis parallel to said rear frame porton;
- first and second tire bead placing means supported on said rear frame portion and movable axially inwardly and outwardly longitudinally of said drum means;
- and said rear frame portion, at the plane perpendicular to the midpoint of the axis of said rotatable tire building drum means and continuously for substantially the entire length of said rear frame portion, extending above a horizontal plane tangent to the bottom of said drum means whereby to form with said base frame portion rigid main frame means to maintain alignment of the tire building elements supported thereby.
In tire building apparatus having main frame means, and rotatable tire building drum means supported by the main frame means, the combination of first and second tire bead placing and end ply bag turn-up ring means supported on the main frame means, elongated lead screw means for effecting movement of said first and second ring means axially inwardly and outwardly longitudinally of the drum means, said elongated lead screw means being formed with a right-hand thread section having threaded engagement with one of said ring means and a left-hand thread section having threaded engagement with the other of said ring means, support means mounting said lead screw means for rotation, power means for rotating said lead screw means, positive stop means carried by the main frame means and being engageable by said ring means for locating the latter in predetermined inward bead set positions, and means for reducing the speed of axial movement of said ring means as the latter closely approach said stop means and their corresponding inward positions.
In tire building apparatus having main frame means, and rotatable tire building drum means supported by the main frame means, the combination of first and second tire bead placing and end ply bag turn-up ring means supported on the main frame means, elongated lead screw means for effecting movement of said first and second ring means axially inwardly and outwardly longitudinally of the drum means, said elongated lead screw means being formed with a right-hand thread section having threaded engagement with one of said ring means and a left-hand thread section having threaded engagement with the other of said ring means, support means mounting said lead screw means for rotation, power means for rotating said lead screw means, positive stop means carried by the main frame means and being engageable by said ring means for locating the latter in predetermined inward bead set positions, and switch actuating means for reducing the rotational speed of said power means as said ring means closely approach said stop means and their corresponding inward positions.
In tire building apparatus having main frame means, and rotatable tire building drum means supported by the main frame means, the combination of first and second tire bead placing and end ply bag turn-up ring means supported on the main frame means, elongated lead screw means for effecting movement of said first and second ring means axially inwardly and outwardly longitudinally of the drum means, positive stop means carried by the main frame means and being engageable by said ring means for locating the latter in predetermined inward bead set positions, said elongated lead screw means being formed with a right-hand thread section having threaded engagement with one of said ring means and a left-hand thread section having threaded enggement with the other of said ring means and extending parallel to the drum means and having an axially-stationary operating position, support means mounting said lead screw means for rotation and axial movement, biasing means for urging said lead screw means axially in the direction of its axially-stationary operating position, rotatable means for rotating said lead screw means, and said lead screw means being axially displaceable to accommodate positive engagement of both of said ring means with said stop means.
Dependencies are inferred from the claim text.