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1. EP3888953 - MULTIPLE-CHAMBER TIRE

Office
European Patent Office
Application Number 19890147
Application Date 10.09.2019
Publication Number 3888953
Publication Date 06.10.2021
Publication Kind A1
IPC
B60C 17/01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
17Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor
01utilising additional inflatable supports which become load-supporting in emergency
B60C 5/20
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
5Inflatable pneumatic tyres or inner tubes
20having multiple separate inflatable chambers
CPC
B60C 17/01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
CVEHICLE TYRES TYRE INFLATION; TYRE CHANGING OR REPAIRING; REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
17Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor
01utilising additional inflatable supports which become load-supporting in emergency
B60C 5/22
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
CVEHICLE TYRES TYRE INFLATION; TYRE CHANGING OR REPAIRING; REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
5Inflatable pneumatic tyres or inner tubes
20having multiple separate inflatable chambers
22the chambers being annular
B60C 29/007
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
CVEHICLE TYRES TYRE INFLATION; TYRE CHANGING OR REPAIRING; REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
29Arrangements of tyre-inflating valves to tyres or rims; Accessories for tyre-inflating valves, not otherwise provided for
007for tyres with segmental sections or for multi-chamber tyres
Applicants BRIDGESTONE CORP
Inventors WADA SHOGO
Designated States
Priority Data 2018225976 30.11.2018 JP
Title
(DE) MEHRKAMMERREIFEN
(EN) MULTIPLE-CHAMBER TIRE
(FR) PNEU À CHAMBRES MULTIPLES
Abstract
(EN) A multi air chamber tire 1 includes a tread portion 4, a pair of bead portions 2, a pair of sidewall portions 3 extending between the tread portion 4 and the pair of bead portions 2, and partition walls 30 respectively provided to half portions of a tire which are defined with respect to a tire equator plane, the partition walls 30 partitioning an inner cavity of the tire to form a plurality of air chambers disposed adjacent to each other. Each of the partition walls 30 includes a first coupling portion 9a coupled with a tire inner wall surface, and a second coupling portion 9b coupled with the tire inner wall surface at a position outward of the first coupling portion 9a in a tire radial direction. In a state where the tire 1 is filled with fluid, a first air chamber 20 is formed in a space located at a position inward of the partition walls 30 in a tire width direction, and a second air chamber 21 is formed in a space located between a partition wall of the partition walls 30 and the tire inner wall surface of a sidewall portion of the pair of sidewall portions 3.
(FR) L'invention concerne un pneu à chambres multiples (1) comprenant : une bande de roulement (4) ; une paire de sections de talon (2) ; une paire de parois latérales (3) s'étendant entre la bande de roulement (4) et les sections de talon (2) ; et des parois de séparateur (30) qui sont disposées sur chacune des moitiés de pneu adjacentes les unes aux autres au niveau du plan équatorial du pneu et qui isolent des sections de l'intérieur du pneu pour former une pluralité de chambres adjacentes. Chacune des parois de séparateur (30) comprend une première partie de liaison (9a) liée à une surface de paroi interne du pneu et une seconde partie de liaison (9b) liée à la surface de paroi interne du pneu à un emplacement radialement vers l'extérieur de la première partie de liaison (9a). Lorsque le pneu (1) est rempli d'un fluide, une première chambre (20) est formée dans un espace vers l'intérieur de la paroi de séparateur (30) dans la direction de la largeur du pneu et une seconde chambre (21) est formée dans un espace entre la paroi de séparateur (30) et la surface de paroi interne de pneu de la paroi latérale (3).