Abstract: A heat shield assembly is disclosed. In various embodiments, the heat shield assembly defines a first circumferential side and a second circumferential side and an inboard end and an outboard end and includes a first layer defining a first surface of the heat shield assembly and having a first tab member disposed proximate the inboard end at the first circumferential side and a second tab member disposed proximate the outboard end at the first circumferential side; and a second layer defining a second surface of the heat shield assembly and having one or more first crimped portions extending along the first circumferential side and configured to engage the first tab member and the second tab member.

Abstract: A heat protection device for a wheel electronics unit on a rim of a wheel of a vehicle, having a main body with a fastening portion for fastening to the wheel electronics unit, and at least one heat protection portion for thermally insulating the wheel electronics unit in the fastened position.

Abstract: A pneumatic vehicle tire (1) having a profiled tread (2) that merges at either side into sidewalls (3), the end of which is formed by a tire bead (5, 6) insertable in an airtight manner into a wheel rim (7) of a vehicle wheel (8), wherein an absorber (10) has been integrated into the pneumatic vehicle tire (1) for sound absorption and the cohesive bond consists of an adhesion promoter (11) applied between the absorber (10) and the inner surface (9) of the pneumatic vehicle tire (1), has been further developed in accordance with the invention in that the inner surface (9) of the pneumatic vehicle tire (1) has mutually alternating adhesion promoter sections (12) and adhesion promoter-free sections (13), the adhesion promoter-free sections (13) having been coated with a separating agent (14).

Abstract: A cavity noise reduction tire comprises a tread portion, a bead assembly being disposed at each side of the tread portion, and a sidewall portion for connecting the tread portion and the bead assembly. The tire has a ratio of the cross-sectional area of the sound-absorbing material to the cross-sectional area of the space formed by the internal surface of the tire which is to be about 23-29%.

Abstract: A rail wheel with a wheel body and wheel brake discs connected thereto with fastening elements on both sides is designed in such a way that at least in the respective contact regions of the wheel brake discs a mechanically and thermally highly resilient intermediate layer is arranged on the wheel body.

Abstract: A tire and wheel assembly includes a wheel that has a rim. The wheel has a first thermal conductivity. A tire is attached to the wheel to define an annular tire cavity enclosed by the tire and the rim. An insulating member is on the rim within the tire cavity. The insulating member has a second thermal conductivity lower than the first thermal conductivity and is configured to absorb heat from the cavity when a temperature of the cavity is above a first predetermined temperature. The insulating member is also configured to release the absorbed heat back to the cavity when the temperature of the cavity is below a second predetermined temperature lower than the first predetermined temperature.

Abstract: An apparatus for use in an active suspension system includes a mass damper for damping a first vertical resonance of a wheel having vertical and horizontal diameters. The wheel defines a wheel plane that passes through a center of the wheel and the wheel's vertical and horizontal diameters. The wheel also defines a transverse wheel plane that is perpendicular to the wheel plane and that intersects the wheel-plane along the vertical diameter. The mass damper includes a damping mass coupled to the wheel. The damping mass is constrained from motion relative to the wheel in all but a vertical direction and has a mass distribution that is asymmetric relative to the transverse wheel plane.

Abstract: A wheel driving apparatus is provided. The wheel driving apparatus includes a cylindrical inner housing supported by a vehicle body via a suspension, a wheel supported by the cylindrical inner housing so that the wheel is rotatable relative to the cylindrical inner housing, a motor having a stator attached to the cylindrical inner housing and a rotor attached to the wheel. The wheel includes a main body portion and an outside portion positioned on an outer side of the vehicle body, and the rotor is attached to the main body portion.

Abstract: An in-wheel motor drive device is attached to an inner side of a wheel of a vehicle wheel and drives the vehicle wheel. The in-wheel motor drive device includes a rotating electric machine; a transmission mechanism that transmits the rotation of the rotating electric machine; a speed reducing mechanism that reduces in speed the rotation transmitted by the transmission mechanism; and an output shaft that outputs the reduced-speed rotation of the speed reducing mechanism to the wheel. The speed reducing mechanism and the output shaft are disposed on a first axis coaxial with a center of the wheel. The rotating electric machine is disposed on a second axis parallel to the first axis, and the rotating electric machine and the speed reducing mechanism are positioned in a radial cross section perpendicular to the first axis and the second axis.

Abstract: A pneumatic tire including: a tread portion and a belt layer on an outer periphery of a carcass layer that extends between left and right bead portions and a plurality of circumferential main grooves extending in a tire circumferential direction provided on an outer surface of the tread portion, wherein on a tire cavity side surface of the tread portion, a ridge (Ra) protruding into the tire cavity side in a direction opposite to a tire radial direction is formed that extends in the tire circumferential direction in a position offset from a tire center towards a well side of a mounting rim so as to encompass an entire width of a well and an entire width of a circumferential main groove positioned farthest to a shoulder side.

Abstract: A vehicle wheel includes a disk and a rim having a well portion and fixed to the disk for supporting a tire, and an additional air chamber member secured to an outer circumferential surface of the well portion in a tire air chamber defined between the rim and the tire. The additional air chamber member includes an additional air chamber and a communication pipe with a communication through hole therein for communication between the additional air chamber and the tire air chamber, and the communication pipe protrudes from the peak in a direction substantially parallel to an axial direction of the wheel. The additional air chamber has a peak in a radial direction of the vehicle wheel. A radius of rotation of the wheel at the tip of the communication through hole is ? a radius of rotation of the wheel at the peak of the additional air chamber.

Abstract: A heat shield segment includes at least one tab extending from an outboard end, the tab adapted to secure the heat shield segment against radial and axial movement. The at least one tab is received over a retaining ring positioned within a tube well of a wheel. The retaining ring is received in recesses formed in the inner surface of drive keys spaced around the interior of the tube well. The heat shield segment is secured at the inboard end by a fastener, and is spaced from the tube well by a spacer positioned between the heat shield segment and the tube well. The at least one tab of the heat shield segment allows for easy assembly and maintenance of the heat shield assembly formed by a plurality of the heat shield segments.

Abstract: 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.

Abstract: A vehicle wheel includes: a disk and a rim having a well portion and fixed to the disk for supporting a tire for the vehicle; and an additional air chamber member secured to an outer circumferential surface of the well portion in a tire air chamber defined between the rim and the tire. The additional air chamber includes a communication pipe with a communication through hole therein for communication between the additional air chamber and the tire air chamber. The additional air chamber has a peak in a radial direction of the vehicle wheel. A radius D2 of rotation of the vehicle wheel at the tip of the communication through hole is equal to or greater than a radius D1 of rotation of the vehicle at the peak of the additional air chamber.

Abstract: A pneumatic tire with a noise damper made of a spongelike multi-cellular material is disclosed. The noise damper is divided into small dampers to improve the high-speed durability of the tire. The noise damper is provided with a water-impermeable outer coating to prevent water from infiltrating into the spongelike multi-cellular material during transporting, store keeping and the like.

Abstract: A wheel body includes a wheel body including a disk and a rim fixed to an outer circumference of the disk for supporting a tire for the vehicle; an air pressure sensor unit for detecting a pressure in an air chamber in the tire with transmitter; a sub air chamber member on the rim for reducing a magnitude of a resonance sound generated by an air column defined by the air chamber defined by the rim and the tire. The air pressure sensor unit and the sub air chamber member are disposed in a circumferential direction of the wheel so as to cancel out one unbalance mass distribution of the vehicle wheel in the circumferential direction of the wheel caused by disposing the air pressure sensor by another unbalance mass distribution of the wheel in the circumferential direction caused by disposing sub air chamber member.

Abstract: A sub air chamber provided around outer circumferential surface of a well of a rim of a vehicle wheel includes an upper plate and a lower plate connected at edges thereof which are fitted into channels in first and second vertical wall surfaces formed on the rim. At least one of the upper plate and the bottom plate has orthogonally and diagonally aligned beads to vertical walls, extending in a circumferential direction of the wheel, supporting the sub air chamber, connecting parts locally connecting the upper plate and the bottom plate. The sub air chamber has a protruding part for communicating the sub air chamber with the tire air chamber and serves as a stopper of the sub air chamber.

Abstract: A brake for a work machine includes a brake rotor, a hydraulically operated device for actuating the brake by clamping the brake rotor, and an arrangement for damping jerks resulting from a sudden brake actuation. The brake rotor includes a pair of brake force transmitting discs and the damping arrangement is formed by a damping layer positioned between the discs and secured to each of the discs.

Abstract: A wheel support device (200) includes a spring (302, 304) fitted to an in-wheel motor (70) and damping the vibration of a motor-driven wheel (100) and the in-wheel motor (70) by extending and retracting, a knuckle (180) attached to the spring (302, 304) and rotatably supporting the motor-driven wheel (100), a center part (306) of a dynamic mass damper mechanism (300) vibrating together with the in-wheel motor (70) by a force given from a road surface when a vehicle runs, an upper part (310) thereof restricting the vibration of the in-wheel motor (70) by coming into contact with the center part (306) at a prescribed region, and a cushioning member (322, 324) fitted to a portion of the center part (306) or the upper part (310) corresponding to the prescribed region brought into contact with the other.

Abstract: A thermal management system and methods for use are disclosed. The thermal management system comprises a shield portion and a dissipation portion. The shield portion may comprise a hot side skin, a conduction layer, an insulation layer, and a cool side skin. The dissipation portion may comprise a fin array. Heat absorbed by the shield portion is partially or fully conducted to the dissipation portion for transfer to the ambient environment. The thermal management system may be employed as an aircraft wheel heat shield, an automotive brake heat shield, a gas turbine heat shield, an electronic heat sink, and in various other applications where heat shielding and/or heat transfer are desirable.

Abstract: A motor-vehicle wheel structure comprises a wheel rim and a wheel disk having a circumferential border bent and welded within the wheel rim, and a central portion bearing a circumferential series of holes for engagement of bolts for fixing the wheel to the wheel support. The central portion is radiused to the circumferential border of the disk by means of an intermediate annular portion having in cross section an arched configuration projecting outwards. The intermediate annular portion has a plurality of embossed portions projecting outwards, configured in such a way as to define a plurality of spokes set at the same angular distance apart from one another.

Abstract: A tire noise reducing system comprises a wheel rim, a pneumatic tire and a noise damper disposed in the tire cavity and made from a spongy material whose total volume is in a range of from 0.4 to 20% of a volume of the tire cavity. The maximum thickness of the damper between the base end surface and the top end surface is in a range of from 1.0 to 4.5 cm. The width of the base end surface is more than the maximum thickness. The width of the damper is not increased in the direction from the base end surface to the top end surface, and each of side faces defined as extending from the edges of the base end surface to the edges of the top end surface is at least partially provided with an aslant portion inclined at an angle theta of from 30 to 75 degrees with respect to the base end surface. The damper is preferably fixed to the inside of a tread portion of the tire.

Abstract: Provided is a tire wheel assembly making it possible to effectively reduce cavity resonance noise without causing either negative influence on deformation of a tire or deterioration in rim assembling workability. A tire wheel assembly of the present invention includes a pneumatic tire, and a wheel provided with a rim fitted with the pneumatic tire, and forms a cavity portion between the pneumatic tire and the rim. The tire wheel assembly comprises at least one tube, which has one end thereof closed while having a length of 55% to 110% of a reference length L0 corresponding to one fourth of a cavity resonance wavelength, is provided so as to open to the cavity portion.

Abstract: A vehicle wheel in which an additional air chamber member in a tire air chamber is fixed on an outer circumferential surface of a well portion, includes: a first vertical wall surface rising outward in a radial direction from the outer circumferential surface of the well portion and extending in a circumferential direction of the outer circumferential surface; and a second vertical wall surface formed in the well portion facing the first vertical wall surface. The additional air chamber member has an additional air chamber and a communication hole formed therein. The communication hole provides communication between the additional air chamber and the tire air chamber. The additional air chamber member is fitted between the first and second vertical wall surfaces. Side end portions of the additional air chamber member in a width direction of the vehicle wheel are secured between the first and second vertical wall surfaces.

Abstract: In order to reduce torsional vibrations and wheel slip in a wheel set for a rail vehicle the wheel set comprising a pair of wheels connected by an axle is provided with a vibration absorbing device comprising a mass, resiliently mounted on the wheel set and adapted to oscillate at the resonant frequency of torsional vibrations of the wheel/axle system. A method of preventing or reducing torsional vibrations in a wheel set of a rail vehicle is also disclosed, the method comprising determining the resonant frequency of torsional vibrations of the wheel/axle system and resiliently mounting a vibration absorbing device in the form of a mass, on the wheel set, the mass and its resilient mounting being selected to oscillate at or near that resonant frequency.

Abstract: An in-wheel motor system, wherein the non-rotating side case of a motor and a knuckle are connected to each other by a motor attachment plate (11), a knuckle attachment place (12), and a damper (16) for interconnecting these plates (11) and (12), moving in the vertical direction of a vehicle. A first direct-acting guide (13) consisting of a linear bearing (13A) and a rod (13B) and a second direct-acting guide (14) consisting of a linear bearing (14A) and a rod (14B) are integrally attached to an attachment member (12m) installed on the side face of the knuckle attachment plate (12). Also, spring members (15) and (15) are installed between receiving members (11m) and (11m) for supporting both ends of the rod (14B) of the second direct-acting guide (14) installed on the motor attachment plate (11) and the fixing portion (12k) for fixing the second direct-acting guide 14 of the attachment member (12m).

Abstract: A rotating side case supporting the rotor of an in-wheel motor and a wheel or a hub are interconnected by a flexible coupling which comprises a motor-side plate and a wheel-side plate having a plurality of grooves and a plurality of grooves formed on their opposed surfaces in the circumferential direction at an angle of 45° from the radial direction of the plates and extending in directions orthogonal to each other, respectively, small balls sandwiched between the grooves and in such a manner that they can slide, and an intermediate plate interposed between the above plates and having guide holes for guiding the small balls in a direction orthogonal to the radial direction of the plates and which has a small number of parts and is easily assembled.

Abstract: A heat shield assembly for a wheel and brake assembly includes one or more torque bars that include a coupling device which cooperates with a portion of a heat shield (and more particularly heat shield sections) at a location axially outwardly remote from the inboard end of the heat shield so as to restrain radial outward movement of the heat shield. In another embodiment, the heat shield assembly includes heat shield carriers between which respective heat shield sections are axially inserted, and retainers are removably secured with respect to the carriers for blocking axial withdrawal of the heat shield sections from respective carriers. In another embodiment, heat shield carriers include a reversely bent edge portion defining a capture slot, and at least one aperture in the bent edge portion. A heat shield section has at one side thereof a first tab portion circumferentially inserted in the capture slot and at an opposite side thereof a second tab portion engaged in the aperture.

Abstract: A tire noise reducing system comprises a wheel rim, a pneumatic tire and a noise damper disposed in the tire cavity and made from a spongy material whose total volume is in a range of from 0.4 to 20% of a volume of the tire cavity. The maximum thickness of the damper between the base end surface and the top end surface is in a range of from 1.0 to 4.5 cm. The width of the base end surface is more than the maximum thickness. The width of the damper is not increased in the direction from the base end surface to the top end surface, and each of side faces defined as extending from the edges of the base end surface to the edges of the top end surface is at least partially provided with an aslant portion inclined at an angle theta of from 30 to 75 degrees with respect to the base end surface. The damper is preferably fixed to the inside of a tread portion of the tire.

Abstract: An elastic wheel comprises a circumferentially extending rim for supporting a tire, a disk fixed to an axle, a damper member disposed between the rim and the disk and made of elastic material for absorbing vibration, and a protecting member made of elastic material and covering the damper member.

Abstract: An aircraft wheel assembly includes a wheel (12) and a beam key (40) mounted on the wheel (12). The beam key (40) includes a body (46) having first and second longitudinally spaced ends (42, 44), an upper side (48), and a lower side (52) having a first surface (53), and a bore (60) having a first end opening (66) in the first surface and a second end opening (64). The wheel (12) includes a centerline (20), an opening (18) for receiving the body first end (42), a second surface (26) angled with respect to the centerline (20), and a wheel bore (30) coaxially aligned with the beam key bore (60) when the body first end (42) is received in the opening (18), the wheel bore (30) having a first end opening in the second surface (28). A spacer (70) must be included between the beam key (40) and the wheel (12).

Abstract: A tire-wheel assembly having a wheel with a rim and a pneumatic tire mounted on the rim, the pneumatic tire having a cavity inside for charging air. The pneumatic tire has a cavity's resonant frequency Fc arising from the cavity, and the wheel has a plurality of natural frequencies. The difference between the cavity's resonant frequency Fc of the pneumatic tire and the natural frequency Fw of the wheel closest to the cavity's resonant frequency is 10 Hz or more.

Abstract: Apparatus and methods to balance a wheel which rotates around an axle. The wheel has a rim having an outer surface and an opposite interior surface positioned circumferentially around the axle. A plurality of rotor drive keys are mounted at the interior surface of the rim. At least one rotor drive key having a different weight than the other rotor drive keys is mounted approximately opposite an abnormal weight in order to balance the wheel.

Abstract: A non-rotary case to which the motor stator of an inwheel motor is fixed is connected to a knuckle which is a part around the wheel of a vehicle by a first elastic member, a rotary case to which the rotor of the motor is fixed and rotatably connected to the non-rotary case through a bearing is connected to the wheel by a second elastic member so as to float-mount the inwheel motor to parts around the wheel.

Abstract: An in-wheel motor system, wherein the rotating side case 3b of an in-wheel motor 3 is connected to a wheel 2 by a flexible coupling 10 comprising a plurality of hollow disk-like plates 11A to 11C and direct-acting guides 12A and 12B, the non-rotating side case 3a of the motor 3 is connected to a knuckle 5 by a damping mechanism 20 for connecting the non-rotating side case 3a of the motor to the knuckle 5 which is a frame dress-up part of the vehicle, comprising two plates 26 and 27 whose moving directions are limited to the vertical direction of the vehicle by direct-acting guides 21 and which are interconnected by first spring elements 22 which move in the vertical direction of the vehicle and dampers 25 with a spring element, each comprising a damper 23 and a second spring element connected to the damper 23 in series and arranged parallel to the first spring elements 22, whereby the drive force of the in-wheel motor 3 can be transmitted to the wheel 2 without fail and the road holding properties of a vehicl

Abstract: A purpose of the present invention is to provide a rim wheel and a tire rim assembly which are capable of effectively reducing cavity resonance of a tire, and accordingly, enhancing quietness and riding comfort. A plurality of cap members 20 is arranged on an outer circumferential surface of a rim 16 in a circumferential direction thereof, diaphragms are disposed inwardly of each cap member 20, and a plurality of sub-air chambers 32 is formed between the rim 16 and the cap members 20 in a rim circumferential direction. The tire main air chamber 18 is connected to the sub-air chambers 32 through communicating holes 24 formed on the cap members 20. The sub-air chambers 32 and the communicating holes 24 constitute a Helmholtz resonance noise absorber that can absorb vibration with specified frequencies.

Abstract: A wheel structure wherein a hub includes both a hub body and a rubber support member which closes an opening of the hub body. A right bearing disposed on the hub body side and a left bearing disposed on the rubber support member side are rotatably mounted on an axle. An inner collar fitted on the axle is provided for maintaining a constant distance between the right and left bearings. The right bearing is brought into abutment against the rubber support member through a cylindrical outer collar which surrounds the inner collar. When the right bearing is press-fitted into the hub body hole, a press-fit load imposed on the right bearing can be borne by the rubber support member through the outer collar. The rigidity of the hub can be enhanced while preventing deformation. A higher load can be borne to act on the hub during vehicular operation.

Abstract: A heat shield assembly for a wheel and brake assembly includes one or more torque bars that include a coupling device which cooperates with a portion of a heat shield (and more particularly heat shield sections) at a location axially outwardly remote from the inboard end of the heat shield so as to restrain radial outward movement of the heat shield. In another embodiment, the heat shield assembly includes heat shield carriers between which respective heat shield sections are axially inserted, and retainers are removably secured with respect to the carriers for blocking axial withdrawal of the heat shield sections from respective carriers. In another embodiment, heat shield carriers include a reversely bent edge portion defining a capture slot, and at least one aperture in the bent edge portion. A heat shield section has at one side thereof a first tab portion circumferentially inserted in the capture slot and at an opposite side thereof a second tab portion engaged in the aperture.

Abstract: A device for attenuating noise generated in a rolling tire and wheel assembly includes strips arranged as a circumferential ring in the tire/wheel cavity. The strips are spaced circumferentially to provide a profile of ridges and gaps in the ring. The rings may be placed on the interior surface of the tire or the wheel or both. Preferably, two rings are formed, and the gaps of the rings are in staggered relationship about the circumferential direction.

Abstract: A process of manufacturing a rim for a motor vehicle from an original pipe, in order to facilitate formation of projections for reducing road noise on the rim, comprises a projection forming step of partially extruding a ledge portion of an intermediate pipe for the rim from inside to outside in a radial direction of the ledge portion so as to form a plurality of projections at suitable intervals.

Abstract: A tire noise damper to be disposed in an annular tire hollow formed between a wheel rim an a pneumatic tire mounted thereon, the damper made of a flexible material and comprising a base to be secured to the wheel rim and at least one flap extending from the base to be risen radially outwards from the wheel rim by centrifugal force during running to block the annular tire hollow. For example, the damper comprises at least one annular elastic band to be put around the wheel rim, the annular band provided with at least one U-cut for forming a flap, and the base is formed by the remaining annular portion of the band. In another example, the damper is made of a strip of the fixable material having a certain length, the base is formed by one end portion of the strip, and the flap is formed by the remaining portion of the strip.

Abstract: A tire noise reducing system includes a pneumatic tire, a wheel rim and a noise damper disposed in a cavity formed between the rim and tire 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.

Abstract: 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.

Abstract: An assembled vehicle brake disk has a basically rotationally symmetrical friction ring which is fastened by way of several linking points in a rigid or floating manner to a basically rotationally symmetrical hub part. At least two distances between respectively adjacent linking points, which distances follow one another in the circumferential direction, differ from one another, in which case, viewed in their entirety, the linking points are arranged in a non-uniformly distributed manner along the circumference. Preferably, an uneven number of linking points are provided which may be arranged to be very asymmetrically distributed along the circumference. The number of linking points may be in the order of between 5 and 15, a smaller number being provided per circumferential segment with respect to lower-frequency noise radiations, and a higher number being provided with respect to higher-frequency noise radiations.

Abstract: A device for attenuating noise generated in a rolling tire and wheel assembly includes strips arranged as a circumferential ring in the tire/wheel cavity. The strips are spaced circumferentially to provide a profile of ridges and gaps in the ring. The rings may be placed on the interior surface of the tire or the wheel or both. Preferably, two rings are formed, and the gaps of the rings are in staggered relationship about the circumferential direction.

Abstract: A vehicle wheel includes a wheel rim having an outside carrying airborne noise-absorbing fiber material in the form of a carrier layer having fibers projecting radially outwardly of an outside of the rim. The rim has an interior tire bead contact area which is spaced from an edge of the fiber material a distance at least equal to the length of the fibers to prevent the latter from entering the tire bead contact area. The fiber material is also preferably located at a depressed area between rim beads and the length of the fibers is preferably between 5 mm and 40 mm.

Abstract: A wheel structure for vehicles, capable of reducing a columnar resonance sound occurring in a wheel during a travel of a vehicle. A cross-sectional shape of a closed space defined by a wheel and a tire is varied in the circumferential direction so that a columnar resonance frequency in the closed space varies with a rotation of a wheel unit.

Abstract: A wheel structure for vehicles, capable of reducing a columnar resonance sound occurring in a wheel during a travel of a vehicle. A cross-sectional shape of a closed space defined by a wheel and a tire is varied in the circumferential direction so that a columnar resonance frequency in the closed space varies with a rotation of a wheel unit.

Abstract: An automotive road wheel is disclosed, comprising: a disk portion fixed to an axle portion of a vehicle by a fastener; and a vibration isolation mechanism provided in a place where the disk portion is fixed by the fastener. In addition, an attaching structure of an automotive road wheel is disclosed, comprising: an axle hub attached to an axle configuration; a road wheel attached to the axle hub; and a vibration isolation mechanism interposed between the axle configuration and the axle hub.

Abstract: A damper plate for an automobile wheel by which ride comfort and interior noise characteristics are improved without seriously deteriorating driving stability or unfastening nuts. The damper plate has a structure in which a metal plate and a buffer member are laminated and is inserted between the automobile wheel and an axle.