The present disclosure relates to a single-piece tubeless vehicle wheel (700b) and a method of manufacturing the same. The wheel is integrally formed from a blank (101) or hoop without welding, ensuring structural continuity between a disc region (103) and a rim region (705). The rim region (705) comprises an outboard bead seat region (707), an inboard bead seat region (708), and a well region (709). A knob spherical flange (704), positioned at the interface between the disc region (103) and the rim region (705), eliminates the need for welding by ensuring structural integrity and seamless load transfer. The wheel includes an inboard flange (706), a central bore (710), multiple bolt holes (711) for mounting, vent holes (712a, 712b) for airflow, and a valve hole (713) for tire inflation. The method involves spinning, forming, compression, and precise machining to achieve controlled variation in thickness and structural integrity without welding.
The present disclosure provides a single-piece tubeless vehicle wheel (100) without welding, ensuring enhanced structural integrity, optimized weight distribution, and improved air retention efficiency. The wheel (100) comprises a disc region (401), a nave region (403), and a rim profile (402), all of which are integrally formed from a hoop (100) without welded joints. The rim profile (402) includes a bead seat (701) and a well region (703), which are configured to enhance tire fitment and ensure airtight sealing for tubeless applications. The outboard flange (502) and inboard flange (704) are reinforced to improve impact resistance and durability. The vent holes (901) and valve hole (902) are strategically positioned to regulate airflow and ensure uniform air distribution. The wheel (100) is manufactured using spinning, flow-forming, and press- forming techniques, providing a seamless structure with uniform stress distribution and improved fatigue resistance.
The present disclosure provides an improved process for manufacturing vehicle wheel rims with controlled rim width and enhanced dimensional precision. The process starts by coiling a metal strip and welding the ends to form a continuous hoop, followed by trimming, re-rounding, and sanding for a smooth profile. Flaring and forming operations using hydraulic presses shape the flange, while well base spinning reduces thickness and volumetrically increases width. Sequential roll forming operations include an initial step to partially shape the tyre seat and gutter, followed by a final roll forming step for precise dimensioning. Precision machining of the gutter end controls rim width variation within -0.5mm to +0.5mm. The process concludes with diameter adjustment, valve slot piercing, and marking for traceability. This method achieves material savings of up to 2.5 kg, reduces production costs, and enhances tire fitment quality, providing substantial advantages over conventional rim manufacturing methods.
The present disclosure provides a dual roller apparatus and method for reducing the thickness of wheel rims (203) in a targeted spinning region (801). The apparatus includes a top roller (201) with a projection, either a spiral (304) or circular (404) design, and a bottom roller (202) for stability. The bottom roller (202) rotates clockwise with the wheel rim (203), while the top roller (201) rotates counterclockwise, applying controlled pressure as both projections traverse axially along the spinning region (801). The spiral projection (304) provides progressive thickness reduction with minimal denting, while the circular projection (404) achieves a smooth, dent-free finish. Both projections feature a helix angle (θ) for gradual engagement and variable radius profiles to prevent surface irregularities. Thickness is reduced from an initial thickness (T1) to a final thickness (T2), achieving a targeted thickness reduction (T3) with efficient control and cost-effective manufacturing.
The present disclosure provides a hybrid three-piece vehicle wheel assembly. The hybrid three-vehicle wheel assembly can comprise the following. A rim (101), a disc (103) including a hub portion (105), a plurality of spokes (107) and a circumferential surface (109), wherein the spokes (107) extend from the hub portion (105) to the circumferential surface (109), and an L-ring (201) is provided for connecting the disc (103) to the rim (101). The L-ring can include an annular surface (201a), and a peripheral surface (201b). The peripheral surface (201b) can be provided at an outer circumferential edge of the annular surface (201a), wherein the peripheral surface (201b) extending axially outwards relative to the annular surface (201a). The peripheral surface is joined to a radially inner surface of the rim (101). A plurality of fastening means (203) is provided for connecting the disc (103) to the annular surface (201a) of the L-ring (201).
The present disclosure provides a bush assembly in an aluminum wheel including a disc (102) with bolt holes (103). The bolt hole (103,601,605,610) can extend between a first edge and a second edge of the wheel disc (102). The bush (104) engages with an inner surface of the bolt hole. The bush (104) can include a cylindrical portion (104a), a transition portion (104b), and a radial portion (104c). The cylindrical portion (104a) engages with a length of a cylindrical surface (103b) of the bolt hole, the transition portion (104b) engages with an inclined surface (103c) of the bolt hole (103). The radial portion (104c) is provided as a surface extending radially inwards at an end of the transition portion (104b), wherein the radial portion engages with the first edge. An engagement means is provided circumferentially on an the bush (104) for engaging with the the bolt hole (103).
The present disclosure provides a tire flange and bead seat assembly for a multi-piece wheel rim. The tire flange and bead seat assembly includes at least one tire flange (101) and at least one bead seat (201). The tire flange (101) includes an end face (103a) and a circumferentially extending tapered radially inward surface (103b). A first tapered surface (203a) includes a taper with angle θ1 configured on a circumferentially extending radially outward surface (205a) of the bead seat and a second tapered surface (203b) includes a taper with angle θ2 configured on a circumferentially extending radially inward surface (205b) of the bead seat (201). The circumferentially extending tapered radially inward surface (103b) includes a taper matching the taper of the first tapered surface (203a) and the circumferentially extending tapered radially inward surface (103b) of the tire flange mounted completely within the first tapered surface (203a) of the bead seat.
The present disclosure provides a steel wheel for a vehicle. The steel wheel can comprise the following. A rim (101), a styled-disc (102), wherein the styled-disc (102) can include a disc flange (103) and a disc profile region (104). The disc profile region (104) can include a disc profile edge (104a), a hub portion (105), spokes (106), and vent holes (107). The spoke (106) can include a base portion (106a), and a projecting portion (106b) at two ends of the base portion (106a). The projecting portion (106b) of adjacent spokes (106) can be connected to form a circumferential edge (106c) around the vent hole (117). A width of the spoke (106) can vary along the length of the spoke (106). A radius of curvature of the vent hole (107) can vary along a circumference of the circumferential edge (106c), thereby reducing stresses, and imparting higher ventilation and stability.
The present disclosure provides embodiments of a lock ring assembly for a multi-piece wheel rim. The multi-piece wheel rim includes a rim (301,501), a bead seat band (303,503), a tire flange (305,505), an O-ring (313,513), and a groove (311,511). The lock ring assembly includes an endless ring (307,507) and a two-piece segmented saddle lock-ring (309,409,509). The two-piece segmented saddle lock-ring (309,409,509) engages with the groove (311,511) facilitating retro-fit. An endless ring (307,507) is placed on the saddle lock-ring (309,409,509). A taper on a radially inner surface of the endless ring (307,507) matches with a taper on a radially outer surface of the two-piece segmented saddle lock-ring (307,507), wherein the taper impart self-locking. The radially inner surface is placed on the radially outer surface of the two-piece saddle saddle lock-ring (309,409), and the self-locking taper prevents movement of the endless ring (307).
The present disclosure provides a tire flange and bead seat assembly for a multi- piece wheel rim. The tire flange and bead seat assembly includes at least one tire flange (101) and at least one bead seat (201). The tire flange (101) includes an end face (103a) and a circumferentially extending tapered radially inward surface (103b). A first tapered surface (203a) includes a taper with angle θ 1 configured on a circumferentially extending radially outward surface (205a) of the bead seat and a second tapered surface (203b) includes a taper with angle θ 2 configured on a circumferentially extending radially inward surface (205b) of the bead seat (201). The circumferentially extending tapered radially inward surface (103b) includes a taper matching the taper of the first tapered surface (203a) and the circumferentially extending tapered radially inward surface (103b) of the tireflange mounted completely within the first tapered surface (203a) of the bead seat.
b in addition to the self locking taper 413 provided at the interface with endless ring 406. A relief 708 is provided on the inner surface of the endless ring 406.
The present invention provides an adapter 104 for monitoring tire 101 pressure level of an off-highway vehicle wheel or earthmoving vehicle wheel through wireless communication. The adapter comprises of a sensor housing 201, wherein the sensor housing 201 includes a sensor module 205, an internal gallery 303 and a battery 206. The sensor housing 201 further includes a male portion 202 with external threads 203 for mounting the adapter 104 in a standard hole 105 of a rim 103 to face tire cavity region 102 of the rim 103, a female threaded hole arrangement 204 to receive a valve core housing 301 and/or a tire inflation valve. The internal gallery 303 provided to establish connectivity between the sensor module 205, tire inflation valve 301 and tire cavity 102.
The present invention explains a process for manufacturing tubeless vehicle wheel without welding using a hoop 100 having an outboard end 101, a centre region 102, an inboard end 103. The process includes spinning the outboard end 101 to obtain a disc region 202, spinning disc end 203 to obtain preform nave region 301. Forming the disc region 202 to obtain a disc profile 401 and a nave region 403, forming the centre region 102, inboard end 103 to obtain a straight rim profile 402. Spinning and forming outer end 405 of the straight rim profile 402 to obtain an outboard flange 502a and spinning the straight rim profile 402 to obtain a concave rim profile 601a with a preform inboard flange 602a. Spinning the concave rim profile 601a to obtain bead seats 701a, well region 703a and, forming the preform inboard flange 602a to obtain an inboard flange 704a.
A transmitter for a tire pressure monitoring system (TPMS) of a vehicle comprises of a pressure sensor, matching components, a printed circuit board (PCB) assembly, a printed antenna in a form of a conductive track. The pressure sensor is provided to measure the pressure of the tire and the matching components are provided for frequency matching. Additionally a conductive track is provided in the PCB for long range transmission. The conductive track along with the matching components is provided in the PCB. The matching components are inductors, resistors and capacitors. Further the printed antenna is provided in the PCB to transmit the sensed pressure data of the vehicle tyre.
The present invention relates to a self-locking mechanism for quick tyre change in rear dual wheel assembly in a heavy transport vehicle. The self-locking mechanism includes a two-piece segmented saddle lock ring 409a, 409b retained in position by an endless ring 406. A self-locking taper 405 provided on inside of the endless ring that can be pressed against on the two-piece segmented saddle lock ring 409a, 409. A lip 702 is provided on the two piece segmented saddle rings 409a and 409b in addition to the self locking taper 413 provided at the interface with endless ring 406. A relief 708 is provided on the inner surface of the endless ring 406.
The present invention relates to a novel design for quick tyre change in rear dual wheel assembly in a heavy transport vehicle. The invention provides a safe design that comprises a two-piece segmented saddle lock ring retained in position by an endless ring. A self-locking taper provided on the inside of endless ring can be pressed against the taper provided on the two-piece segmented saddle lock ring. The endless ring retaining the two-piece segmented saddle lock rings due to wedge action of self-locking taper cannot move from its position until an external force is applied on the endless ring towards the direction of the tyre position. The endless ring acts as a hood over the two-piece segmented saddle lock rings and prevents any loose parts flying off the rim during the tyre burst. Further in this safe design both inboard and outboard rim tyre support components are identical as both rims are of same diameter.
The invention provides a new design for a vehicle steel wheel with improvement in strength and rigidity. The vehicle steel wheel comprises of a rim, a disc and reinforcing ribs (202). The disc having a base profile includes a disc flange (201), plurality of spokes (101), plurality of vent holes (102) and a nave portion (103). The reinforcing ribs (202) are provided radially on each side of the vent holes (102). The disc flange (201) is connected orthogonally to a well portion (105) of the rim. The rim and the disc are connected together with plurality of weldments (204) placed in between the two spokes (101).
The present invention provides an adapter 104 for monitoring tire 101 pressure level of an off-highway vehicle wheel or earthmoving vehicle wheel through wireless communication. The adapter comprises of a sensor housing 201, wherein the sensor housing 201 includes a sensor module 205, an internal gallery 303 and a battery 206. The sensor housing 201 further includes a male portion 202 with external threads 203 for mounting the adapter 104 in a standard hole 105 of a rim 103 to face tire cavity region 102 of the rim 103, a female threaded hole arrangement 204 to receive a valve core housing 301and/or a tire inflation valve. The internal gallery 303 provided to establish connectivity between the sensor module 205, tire inflation valve 301 and tire cavity 102.
The present invention provides a disc wheel with variable thickness for agricultural tractor application. According to an embodiment, a disc wheel with variable thickness includes an axle mounting area 201, an axle mounting radius area 202, a wheel weight mounting area 203 and a connection bracket mounting area 204, wherein said disc wheel includes maximum thickness at the axle mounting area 101 and at the connection bracket mounting area 204. The disc wheel 200 uses less material input for imparting high strength. Further, the disc wheel 200 with variable thickness prevents bolt hole failures by providing higher strength at a centre. The thickness from the axle mounting area 201 gradually decreases up to the end of the wheel mounting area 203 and matches the thickness at the connection bracket mounting area 204. The disc wheel 200 with variable thickness is achieved using flow forming process 402.
The present invention provides a method for manufacturing a vehicle wheel comprising the steps of placing a metal band (101) in a mandrel (102) at a machining tool; forming the metal band (101) for making a desired length of rim (201) and a wheel disc (202); spinning a nave portion (401) of the metal band (101) for shaping the wheel disc (202); spinning the metal band (101) for making a disc flange (502) and a gutter portion (504); rolling one end of the rim portion to form the required gutter portion (504); spinning the rim portion further to form a tyre seat and well area (701); forming a flange flare (801) by bending another end of the rim portion; forming the flange portion (901); machining flange edge (1201), nave (1202) and bore; reaming of bolt holes and chamfering bores at the wheel disk portion.
The present invention relates to a novel design for quick tyre change in rear dual wheel assembly in a heavy transport vehicle. The invention provides a safe design that comprises a two-piece segmented saddle lock ring retained in position by an endless ring. A self-locking taper provided on the inside of endless ring can be pressed against the taper provided on the two-piece segmented saddle lock ring. The endless ring retaining the two-piece segmented saddle lock rings due to wedge action of self-locking taper cannot move from its position until an external force is applied on the endless ring towards the direction of the tyre position. The endless ring acts as a hood over the two-piece segmented saddle lock rings and prevents any loose parts flying off the rim during the tyre burst. Further in this safe design both inboard and outboard rim tyre support components are identical as both rims are of same diameter.
The present invention provides a novel design for quick tyre change in rear dual wheel assembly in a heavy transport vehicle. The invention provides a safe design that comprises a two-piece Z-section segmented lock ring retained in position inside a groove provided with female taper on the wheel rim. A portion of Z-section lock ring is tapered to 45 degrees on its exterior surface and abuts against a self locking taper on the bead seat band. The Z-section lock rings are retained inside the groove due to wedge action of self-locking taper cannot move from its position until an external force is applied on the ring towards the direction of the tyre position. A lip of the wheel rim acts as a hood over the Z-section segmented lock rings and prevents any loose parts flying off the rim during the tyre burst. Further in this safe design both inboard and outboard rim tyre support components are identical as both rims are of same diameter.
The invention provides a new style or design for a steel wheel in passenger vehicle with improvement in performance and aesthetics. In the new design steel wheel, a vent-hole may get folded and welded to an outboard bead seat of the steel wheel rim. The vent-hole folding itself may get turned as a flange portion for the steel wheel. This may significantly increases the vent-hole area, which may improve better air flow and cooling of the brake drum. The passenger vehicle steel wheel design can enable the ability to spot welding throughout the circumference of the rim-disc contact surface, for better contact and higher load/moment transfer. Further the passenger vehicle steel wheel may utilize an existing rim without any special machining or modification. Furthermore, the bigger wheel disc surface available provides room for more styling and aesthetic improvements.
The present invention provides a differential gutter wheel where in rim and disc are welded in the new construction. A differential gutter wheel comprises a flat base rim back section without gutter profile, an extended disk contains the gutter wall, a joint zone weld connecting extended disk edge surface and flat base rim back section and thus forms the required gutter profile. Thereby, the differential gutter wheel is shaped in a desired way, so as to increase the performance of the wheel. Further, the differential gutter wheel profile enables to higher inside clearance for brake component to be placed. In addition, the differential gutter wheel affords elimination of gutter forming operations during manufacturing and reduces the input raw material.
A commercial vehicle wheel comprises of a rim (101), and a disc (102), wherein the rim (101) includes an outer flange (103), an inner flange (104), an outer bead seat (105), an inner bead seat (106), a connecting region (107) for connecting the rim (101) and disc (102), a circumferential mounting groove (108) connected between the connecting region (107) and inner bead seat (106), wherein a valve hole (109) is provided in the outer bead seat (105) for positioning a valve (110), wherein said valve (110) stem is externally projecting outside the disc (102), thereby results in pave the way for achieving larger clearance between the valve and drum/caliper.
In view of the foregoing, an embodiment herein provides a method of manufacturing wheel disc, wherein said method comprising of steps providing a rectangular strip made of metallic materials, circling the strip to form a band, welding the band to form a hoop by welding process, forming one side of the hoop to make the center portion of the disc, spinning another side of the hoop to form flange of the disc, and achieving varying thickness across the disc to make variable thickness wherever needed, thereby reducing the usage of raw material and reducing wastage and making light weight wheel disc.
A method of manufacturing wheel disc is provided, wherein said method comprises of steps of providing a rectangular strip (201) made of metallic materials, circling the strip (201) to form a band, welding the band to form a hoop (202) by welding process, forming one side of the hoop (202) to make the centre portion of the disc, spinning another side of the hoop (202) to form a flange of the disc, and achieving varying thickness across the disc to make variable thickness wherever needed. Thereby the method can reduce wastage and the usage of raw material, and can make light weight wheel disc.
a wheel is provided, which comprises of a disc (202), a rim (201) with two flanges (203), two bead seats (204), a circumferential mounting groove (205) and a connecting portion (207) for connecting the rim and disc, and a valve (209) passing though a valve hole (208), wherein the valve hole (208) is positioned at a flat portion (206) of the rim (201), particularly near the connecting portion (207), and a small cut portion at the flange portion of the disc (202) is provided to extend the valve stem (210) outside the disc (202). Thereby a larger clearance between the valve (209) and drum/caliper can be achieved.
The present invention is a vehicle wheel having a non-constant thickness through the outer rim when the outer rim is viewed in a sectional profile wherein the non-constant thickness allows a significant reduction of the mass momen of inertia of the wheel, while adequately addressing the structural requirements of th vehicle wheel.
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