摘要:
A rim for a bicycle wheel that includes a tire, hub and spokes. The bicycle rim generally includes a radially outer tire-engaging portion, a radially inner spoke-engaging portion, a first sidewall and a second sidewall spaced apart from the first sidewall. The first and second sidewalls extend between the tire engaging and spoke-engaging portions. The tire-engaging and spoke-engaging portions and first and second sidewalls form a toroid. The rim when attached to the tire forms a side profile and a transverse cross section that positions a center of pressure of the rim.
摘要:
A bicycle rim comprises a radially outer peripheral part, a radially inner peripheral part, at least one sidewall, and at least one cover member. The at least one side wall radially extends between the radially outer peripheral part and the radially inner peripheral part. The at least one side wall comprises at least one opening. The at least one cover member covers the at least one opening, and the at least one cover member comprises a metallic material.
摘要:
A rim (5) for a bicycle wheel having a body (20) with a substantially annular extension with a radially outer portion (22) shaped for coupling with a tire is disclosed. The radially outer portion (22) has a hole (39) for an inflation valve. The radially outer portion (22) also includes, at the hole (39) and/or in an area proximal to the hole (39), at least one cross section having a different shape from that at an area distal from the hole, so as to form at least one second surface discontinuity (35) along the annular extension of the radially outer portion (22). The second discontinuity (35) makes it easier to assemble to wheel and allows an optimal coupling to be made between the rim (5), inflation valve, and tire, in the case of a tubeless wheel, and between rim (5), air chamber and tire, in the case of a wheel with an air chamber.
摘要:
A wheel for use with a bicycle is provided, the wheel comprising a hub about which the wheel is mountable to a bicycle, a rim about which a tire is mountable, and a plurality of spokes that extend between the hub and the rim. The rim and/or one or more of the spokes have a leading and/or trailing edge, at least part of which has an undulating configuration.
摘要:
A vehicle wheel which includes an additional air chamber member forming an additional air chamber in a tire air chamber. The additional air chamber member is fixed on an outer circumferential surface of a well portion of a rim. The additional air chamber member is provided with a communication hole communicating between the additional air chamber and the tire air chamber. The communication hole is disposed at a position shifted from a discharge port of an air valve for supplying air in the tire air chamber in a wheel circumferential direction and opened to the tire air chamber.
摘要:
The invention relates to a cast wheel having a wheel rim base, a rear edge region, and a front edge region, wherein the front edge region is coupled to the rear edge region via the wheel rim base. The cast wheel includes at least one reduced-material portion structured and arranged in the rear edge region and a circumferential bead arranged in a rearward portion of the rear edge region, wherein at least a part of the reduced-material portion is located in a region of the circumferential bead and is structured and arranged to widen radially inward from a radially outwardly located vertex region towards a leveling-off end.
摘要:
A rim (5) for a bicycle wheel having a body (20) with a substantially annular extension with a radially outer portion (22) shaped for coupling with a tire is disclosed. The radially outer portion (22) has a hole (39) for an inflation valve. The radially outer portion (22) also includes, at the hole (39) and/or in an area proximal to the hole (39), at least one cross section having a different shape from that at an area distal from the hole, so as to form at least one second surface discontinuity (35) along the annular extension of the radially outer portion (22). The second discontinuity (35) makes it easier to assemble to wheel and allows an optimal coupling to be made between the rim (5), inflation valve, and tire, in the case of a tubeless wheel, and between rim (5), air chamber and tire, in the case of a wheel with an air chamber.
摘要:
A wheel includes: a first wheel half having a disk portion formed with a central hole that is defined by a hole-defining wall, and a rim extending from a periphery of the disk portion; and a second wheel half having a disk portion connected to the disk portion of the first wheel half, and a rim extending from a periphery of the disk portion of the second wheel half away from the first wheel half. The rims of the first and second wheel halves extend in opposite directions and are adapted for mounting of a tire thereon. The disk portion of the second wheel half is formed with a middle hole and a central bushing that is bent from a periphery of the middle hole and that protrudes axially into the central hole in the disk portion of the first wheel half so as to contact intimately the hole-defining wall of the central hole.
摘要:
A rim material having a non-uniform thickness, a rim manufactured from the rim material, and a method for manufacturing the rim from the rim material. The rim material includes a first material portion which forms an axially curved portion of the rim after the rim material is formed to the rim and a second material portion which forms an intermediate portion between adjacent axially curved portions after the rim material is formed to the rim. The first material portion has a thick parallel-surface portion including opposite surfaces parallel to each other. The parallel-surface portion has a width greater than a maximum amount of an axial dislocation of the parallel-surface portion expected to occur when the parallel-surface portion is formed to a corresponding curved portion. The second material portion has a thickness varying portion. The thickness varying portion includes a surface having a configuration defined by a line including a straight line and/or a slightly curved line.
摘要:
The present invention concerns in particular a process for mounting onto a wheel rim (10), on the one hand a tyre (600) comprising first and second beads (620, 610) respectively designed to be mounted on a first and a second rim seat (13′, 13″), and on the other hand a safety support designed to be mounted inside the tyre on a bearing surface of the rim. This process comprises the following successive stages: (a) the tyre provided with the support in its inside space is brought to the rim, offering the second bead (610) on the side of the first seat (13″), (b) the second bead is slipped over the bearing surface so as to introduce it into a mounting groove and the support is positioned partially in place on the bearing surface, the first bead then being located axially outside the first seat, (c) the support is fitted fully onto the bearing surface, (d) the first bead (620) is mounted on the first seat, (e) the second bead is extracted from the groove so that it can be brought axially outside a projection of the second seat (13″), (f) the second bead is mounted on the second seat. According to the invention, before implementing stage (b) a mean (510) for extracting the second bead in positioned at the bottom of the groove and, to implement stage (e), the second bead is guided axially towards the outside of the groove and the second seat by pivoting the extraction means around an axis (512) located radially on the inside of the rim.