Non-pneumatic insert tube for tires

A non-pneumatic insert tube for a tire adapted to be mounted upon a circular rim comprising an elongated tube having a thin wall defining a continuous bore of substantially uniform cross-section which extends throughout the entire tube length, a sequence of longitudinally spaced partial cuts severing the thin wall of the tube with each partial cut being generally transverse to the longitudinal axis of the uncoiled tube and with the sequence of partial cuts being generally symmetrically centered about the radial outer periphery of the tube when formed into a single coil hoop for insertion into a tire and with an uncut portion of the tube being generally symmetrically centered about the radial inner periphery of the tube which is to be seated adjacent the rim, and a reinforcing web having a plurality of relatively thin intersecting cross legs extending across the bore of the tube from sidewall to sidewall for the length of the tube and integrally joined to the interior wall of the tube adjacent the partial cuts with the sequence of partial cuts also severing the reinforcing web at least in part.

A non-pneumatic insert tube for a tire adapted to be mounted upon a circular rim comprising an elongated tube having a thin wall defining a continuous bore of substantially uniform cross-section which extends throughout the entire tube length, a sequence of longitudinally spaced partial cuts severing the thin wall of the tube with each partial cut being generally transverse to the longitudinal axis of the uncoiled tube and with the sequence of partial cuts being generally symmetrically centered about the radial outer periphery of the tube when formed into a single coil hoop for insertion into a tire and with an uncut portion of the tube being generally symmetrically centered about the radial inner periphery of the tube which is to be seated adjacent the rim and with the sequence spacing of the partial cuts being less than the outer diameter of the tube, and a reinforcing web having three relatively thin intersecting cross legs extending across the bore of the tube from sidewall to sidewall and removed from the inner and outer radial peripheries of the coiled tube for the length of the tube and integrally joined to the interior wall of the tube adjacent the partial cuts with the sequence of partial cuts also severing the reinforcing web at least in part.

A non-pneumatic insert tube for a tire comprising an elongated tube having a thin wall defining a continuous bore of substantially uniform cross-section which extends throughout the entire tube length, a relatively thin reinforcing web disposed within the bore of the tube and integrally attached to the interior sidewalls of the tube to subdivide the tube bore into two sections, and a sequence of spaced partial cuts being disposed about the radial outer periphery of the tube when formed into a single hoop for insertion into a tire with the uncut portion of the tube being located on the radial inner periphery of the tube.

A non-pneumatic insert tube for a tire comprising an elongated cylindrical tube having a thin wall defining a continuous bore which extends throughout the entire tube length, a relatively thin reinforcing web disposed within the bore of the tube and integrally attached to the sidewalls of the tube to subdivide the length of the tube bore, the web being curved so as to be longer than the inside diameter of the bore from sidewall to sidewall, and a continuous sequence of spaced partial cuts being symmetrically disposed relative a first longitudinal axis located on the periphery of the uncoiled tube, and with each of the cuts being transverse to the longitudinal central axis of the uncoiled tube.

A non-pneumatic insert tube in combination with a tire consisting essentially of an elongated tube having a thin wall defining a continuously open and generally circular bore which extends throughout the entire tube length and in which the thickness of the tube wall is substantially less than the radius of the bore, and a sequence of longitudinally spaced, partial cuts transverse to the longitudinal axis of the uncoiled tube extending through and severing the thin wall of the tube with the depth of the partial cuts being greater than the radius of the tube thus severing a major portion of said thin wall with each partial cut being generally C-shaped in cross-sectional configuration with the sequence of partial cuts being disposed about the radial outer periphery of the tube when formed into a single hoop and with an uncut portion of the tube which extends throughout the entire tube length being located on the radial inner periphery of the tube, and in which the longitudinal spacing of the partial cuts is less than the cross-sectional outer diameter of the tube and in which the partial cuts are knifelike cuts in which the tube wall is severed during fabrication.

A non-pneumatic insert tube for a tire comprising an elongated tube having a thin wall defining a continuous bore of substantially uniform cross-section which extends at least substantially throughout the entire tube length, at least one relatively thin reinforcing web disposed within the bore of the tube and integrally attached to the interior sidewalls of the tube for at least substantially the entire length of the tube to subdivide the tube bore into at least two sections, and a sequence of spaced partial cuts being disposed about the radial outer periphery of the tube when formed into a single coil hoop for insertion into a tire with the uncut portion of the tube being located on the radial inner perphery of the tube and with each of the partial cuts extending into the reinforcing web to subdivide the at least one relatively thin reinforcing web into separate sections along the longitudinal axis of the uncoiled tube.

A non-pneumatic insert tube for a tire adapted to be mounted upon a circular rim comprising an elongated tube having a thin wall defining a continuous bore which extends for at least substantially the entire tube length, a sequence of longitudinally spaced partial cuts severing the thin wall of the tube with each partial cut being generally transverse to the longitudinal axis of the uncoiled tube and with the cuts being aligned radially on the radial outer periphery of the coiled tube and with the uncut portion of the tube being located on the radial inner periphery of the tube when the insert tube is formed into a single coil hoop for insertion into a tire, and a reinforcing web extending for at least substantially the entire tube length and having a plurality of relatively thin intersecting cross legs extending across the bore of the tube with each cross leg being subdivided at the locus of intersection by a pair of web segments having a generally uniform thickness throughout the length and width of each segment less than the thickness of the thin wall of the tube.