摘要:
The invention relates to an adaptor (A) for a rolling assembly comprising a tyre (P) and a rim (J), said adaptor being intended to provide the connection between the tyre and the rim and aimed at increasing the shock resistance thereof. The adaptor (A) comprises an axially inner end (10) with an inner reinforcing element (16), an axially outer end (9) with an outer reinforcing element (15) and a body (11). According to the invention, the outer reinforcing element (15), axially on the outside of the bearing face (21), is a bead wire consisting of a stack of at least three layers (23, 24, 25) consisting of metallic and concentric filaments. A first layer or core (23) comprises at least one metal filament having a diameter D1 at least equal to 0.8 mm and at most equal to 5 mm, a second layer (24) consists of a metal filament having a diameter D2 at most equal to 1.4 times the diameter D1 and wound in a helix at an angle A2 at least equal to 2° and at most equal to 10° and a third layer (25) consists of a metal filament having a diameter D3 and wound in a helix around the second layer (24) at an angle A3 at least equal to 2° and at most equal to 10° and of opposite sign to that of the angle A2.
摘要:
Systems and methods disclosed herein may be useful for use in a wheel assembly. In this regard a wheel assembly (10) may comprise a wheel base (12) with a center axis, a side rim (14) disposed about a circumference of the wheel base (12), wherein the side rim (14) includes a frustoconical radially inward surface, and a lock ring (22) comprising a single unitary member. The lock ring (22) may secure the side rim (14) onto the wheel base (12), the lock ring (22) preventing the side rim (14) from sliding axially with respect to the wheel base, wherein a frustoconical radially outward surface of the lock ring (22) comprises a first angle with respect to the frustoconical radially inward surface of the side rim (14).
摘要:
The invention relates to an adapter for a rolling assembly having an axis of rotation comprising a tyre having two beads, a rim having a well (13) positioned between two rim seats (12) each having an axially outer end, said rim having a total width W between each axially outer end of said two rim seats, said adapter making the connection between each bead and each rim seat, said adapter having two axially outer ends (2) each comprising an adapter seat (3) and an adapter bearing face (4) substantially comprised in a plane perpendicular to the axis of rotation, a body (5) connecting said two axially outer ends (2) so as to form a one-piece component and comprising at least one main reinforcement, a face (16) intended to be in contact with each rim seat (12) and with the well (13) and arranged radially on the inside said adapter having a total axial width L comprised between each adapter seat (3). The invention is characterized in that the ratio W/L is greater than or equal to 20 and less than or equal to 60% and in that said body comprises an immobilizing element (8) intended to immobilize said adapter in the well (13).
摘要:
A tyre (1), a mounting rim (2) for said tyre (1) and a ring-shaped support (3) for supporting the tread (10) of the tyre (1) should the tyre pressure when driving be low or zero. The rim (2) has two seats (23' and 23') of which the first seat (23') has an outwardly-sloping generatrix and an axial outer extension in the form of a projection (25'), whereas the second seat (23') has an inwardly-sloping generatrix and an axial outer extension in the form of a flange (24). The tyre (1) has the meridian profile of a radial carcass reinforcement (13), and bead structures (12', 12') fitted to the mounting rim (2), and forms with said rim an assembly enabling driving at low or even zero tyre pressure.
摘要:
Rim equally available for a safety tire and an ordinary tire, and assembly of said rim and aforesaid tires; which enables a safe running when the inside pressure of a tire is low or at an abrupt cornering and application not only to a safety tire but also to an ordinary tire. The wheel rim and the assembly made of said rim and a tubeless tire comprise a ring-shaped groove (3) extending in a circumferential direction and formed at the outside of and in the axial direction of a well (2) and a hump (4) extending in a circumferential direction and formed at the outside of and in the axial direction of said ring-shaped groove, said tire comprising a toe portion (13) and a hump groove (14) which are fitted to aforesaid ring-shaped groove (3) and hump (4).