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1. (WO1979000612) A STRUCTURE FOR USE WITHIN A PNEUMATIC TYRE PROVIDING SUPPORT IN THE EVENT OF DEFLATION
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1979/000612 International Application No.: PCT/GB1979/000026
Publication Date: 06.09.1979 International Filing Date: 08.02.1979
IPC:
B60C 15/028 (2006.01) ,B60C 17/04 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
C
VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
15
Tyre beads, e.g. ply turn-up or overlap
02
Seating or securing beads on rims
028
Spacers between beads
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
C
VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
17
Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor
04
utilising additional non-inflatable supports which become load-supporting in emergency
Applicants:
Inventors:
Priority Data:
5474/7810.02.1978GB
Title (EN) A STRUCTURE FOR USE WITHIN A PNEUMATIC TYRE PROVIDING SUPPORT IN THE EVENT OF DEFLATION
(FR) STRUCTURE UTILISABLE DANS UN PNEUMATIQUE ET ASSURANT UN SUPPORT EN CAS DE DEGONFLAGE
Abstract:
(EN) A structure for fitting around the rim of vehicle wheel and within the tyre provides, on deflation of the tyre, support for the tyre at the ground bearing point and prevents dislocation of the tyre beads thus enabling control and reasonable "run-flat" travel to be retained in the event of a puncture. The structure comprises a number of elongate block members (1, 2) which lie transversely across the well (10) in the rim of the wheel (3). The blocks are spaced and retained by reinforced rubber belts (13) and are dimensioned to prevent displacement of the tyre beads (11). To enable a tyre to be fitted or removed some, at least, of the blocks (1) are in two parts (6, 8) with a pivotal interconnection (15) allowing the centre of the block to move away from the rim and the ends to move together thus allowing space for the tyre bead to enter the well, this being effected automatically on insertion of a tyre lever under the tyre bead. Springs (16) ensure the parts of the block return when the tyre beads are seated normally. The blocks may include lugs (9) which bear on the base of the well. A majority of blocks (2) need have no pivot.
(FR) Une structure que l"on dispose autour de la jante d"une roue de vehicule et a l"interieur du pneu, assure, en cas de degonflage du pneu, un support au point d"appui sur le sol et empeche la dislocation des talons, permettant ainsi de garder le controle en cas de crevaison et de rouler a plat dans des conditions vraisemblables. La structure comprend un certain nombre d"elements allonges (1, 2) disposes transversalement par rapport a la base creuse (10) de la jante de la roue (3). Les elements sont espaces et maintenus par des courroies de caoutchouc renforcees (13) et sont dimensionnees de facon a empecher le deplacement des talons (11) du pneu. Afin de permettre le montage ou le demontage du pneu, au moins certains des elements (1) sont en deux parties (6, 8) assujetties l"une a l"autre de facon pivotante (15) permettant au centre de l"element de s"eloigner de la jante et aux extremites de se deplacer ensemble, donnant ainsi au talon l"espace necessaire pour penetrer dans la base creuse de la jante, ce qui s"effectue automatiquement en inserant un demonte pneu sous le talon. Des ressorts (16) assurent le retour en position des deux parties de l"element lorsque les talons du pneu sont en position normale. Les elements peuvent comporter des pattes (9) qui s"appuient sur la base creuse de la jante. La majorite des elements (2) ne necessitent pas de pivot.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)