摘要:
An assembly of a pneumatic tire and a rim and a sound suppressing body used for the assembly, the assembly wherein the sound suppressing body (5) having a volume (V2) of 0.4 to 20% of the total volume (V1) of a tire inside hollow (4) and formed of a sponge material extending in circumferential direction is installed in the tire inside hollow (4) formed by the tire (2) and the rim (3); the sound suppressing body (5) comprising a tire side sound suppressing body (10) having a bottom face (10B) fixed to the tire (2) or a rim side sound suppressing body (11) having a bottom face (11B) fixed to the rim (3), wherein the area gravity (G) of the tire side sound suppressing body (10) or the area gravity center (G) of a sound suppressing body main part (16) exceeding the bead base line (BL) of the rim side sound suppressing body (11) is positioned in an area (Q) ranging from the middle point (T/2) of a height (T) from a reference plane (N) to the tip of the sound suppressing body to the reference plane (N).
摘要:
A flat-proof rim for a pneumatic tyre of a wheel is disclosed. The flat-proof rim includes a circular rim body (10) having an outer periphery. A plurality of spaced linkages are arranged along and movably connected to the outer periphery of the rim body (10), and each have a hoof (40) adapted to be movable between a radially inner position and a radially outer position relative to the rim body (10). In addition, there is provided an apparatus for driving the linkages so that the hoofs (40) are moved from the radially inner positions to the radially outer positions when the pneumatic tyre is deflated while the wheel is rotated at a high speed.
摘要:
A tire noise reducing system comprises a pneumatic tire, a wheel rim and a noise damper disposed in a cavity formed between the rim and tire when mounted as being surrounded by the tire and rim, the noise damper is made of a porous material having a specific gravity of from 0.005 to 0.06 and secured on a surface facing the cavity, the volume S2 of the noise damper is in a range of from 0.4 to 20.0 % of the volume S1 of the cavity. Preferably, the noise damper is provided with an uneven surface or an outer layer for less sound reflection, and the shape index E of the noise damper is more than 1, and the ratio T/W of the thickness T to the width W of the damper is not less than 1.
摘要:
An assembly (10) for location around a wheel rim (32) comprises an annular support band (12) being formed of a relatively inextensible material. The support band (12) is split at at least one circumferential location to define a pair of opposed ends (16, 18). Adjustment means (24, 26, 28) are operably connected to said opposed ends (16, 18) for enabling adjustment of the diameter of the support band (12), and spacing means (14) depend from the radially inner face (34) of the support band (12). The spacing means (14) is formed from a relatively non-compressible material and, in use, is seated upon the wheel rim (32) to maintain the support band (12) in a spaced apart relationship with the wheel rim (32). The assembly may be adapted for use as a runflat assembly or as a beadlock assembly.
摘要:
An all-purpose adapter for cycle wheel rims (1) adapted to provide an easier and perfect fitting of the tyres comprises one or more layers (2,3) arranged on the rims having such a cross-section as to provide, together with the rims, an asymmetrical recess for the tyre, defined by side ridges delimiting with the rims (1) the tyre bead seats (7).
摘要:
Es handelt sich um ein Fahrzeugrad mit zumindest einer Felge (1), einem schlauchlosen Luftreifen (2) und einem Spreizring (3) mit Drahtbündelarmierung zur Sicherung der Reifenfüße (4) auf den Felgenschultern (5). Der Spreizring (3) besteht aus einem auf Umfangslänge abgelängten Kammprofilstrang mit in seiner äußeren Umfangsflächen umlaufenden Ringnuten (11). In die Ringnuten (11) sind Drahtbündelringe (12) oder Kabelkerne eingesetzt. Der Spreizring (3) zeichnet sich durch eine gewichtssparende und kostengünstige Fertigung aus und übt dennoch ausreichende Spreizwirkung selbst bei geringsten Luftdrücken aus.
摘要:
Le dispositif de sécurité 3 comporte essentiellement un anneau rigide 4 et une pièce annulaire 5 en matériau élastique souple. L'anneau rigide 4 comporte plusieurs secteurs 41. La liaison entre ces secteurs 41 est réalisée par charnières, dont on aperçoit un axe 402. La face supérieure de l'anneau rigide 4 sert d'appui radial pour la bande de roulement d'un pneumatique en cas de roulage de secours.
摘要:
A wheel rim for a pneumatic tyre comprising bead seats, (1,2) a conventional tyre bead fitting well (13) and located within said fitting well a circumferentially extending tyre support member characterised in that the support member comprises a pair of parallel, circumferentially extending support ring surfaces (6,7) one at either side of a secondary tyre bead fitting well (11) having a depth such that a bead of a tyre for which the wheel rim is intended may be assembled over one or other of the support ring surfaces (6,7) using the secondary fitting well (11) in the conventional tyre bead fitting process.