Pneumatic tire assembly and removable bead guard

Details Pneumatic tire assembly and removable bead guard Pneumatic tire assembly and removable bead guard

B - Operations, Transporting

60

C

B60C 15/02 (2006.01) B60C 5/16 (2006.01) B60C 15/024 (2006.01)

Patent

CA 2065336

Assembly comprising a tyre and a removable inlay, intended to be mounted and used on a rim having an angled seat. The tyre has beads whose external contour is formed mainly of an angled area substantially parallel to the rotation axis and of an angled area forming an angle of between 45 DEG and 90 DEG with the rotation axis. The removable inlay (2), whose contours are adapted to both the profile of the wheel rim and the profile of the corresponding bead, is reinforced with a wire (3) around which is wound a ply (4) forming two layers (41, 42) extended to the extremity (40') of said removable inlay (2). As well as improving the initial life of a tyre, the invention provides for easier and less costly retreading.

Ensemble composé d'un pneumatique et d'un protecteur amovible, destiné à être monté et utilisé sur une jante à sièges tronconiques. Le pneumatique a des bourrelets (5) dont le contour extérieur est formé principalement d'une zone tronconique (80) sensiblement parallele à l'axe de rotation et d'une zone tronconique faisant avec l'axe de rotation un angle compris entre 45° et 90°. Le protecteur amovible (2), dont les contours s'adaptent d'une part au profil (10, 11, 12) de la jante (J) de montage, et d'autre part au profil (80, 81, 82) du bourrelet (5) correspondant, est renforcé d'une tringle (3) autour de laquelle vient s'enrouler une nappe (4) formant deux couches (41, 42) s'étendant jusqu'à la pointe (40') dudit protecteur amovible (2). Tout en améliorant la durée de vie initiale du pneumatique, l'invention permet un rechapage plus facile et moins coûteux.

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