An assembly rim with adjustable width for mounting tires on automobiles

Abstract

The present invention relates to an assembled, width-adjustable rim for mounting tires on automobiles. The rim consists of a central cylindrical drum with two sides separated by a central section with two annular stop edges. Each side is configured to axially receive a double-walled "C"-shaped insert up to the stop. Each insert has a thread on its outer wall and a thread on its inner wall, and is threaded into a double-walled "C"-shaped tire mounting ring with a closed end. The double-walled "C"-shaped tire mounting ring defines an outer wall with an internal thread and an inner wall with an internal thread. The tire mounting ring and insert have axial through-holes at their closed ends designed to axially receive bolts that pass through axial holes in the annular rim of the central cylindrical drum to secure the entire assembly. Additionally, the present invention features a threaded air fill valve, a reinforcing ring mounted inside the drum, and a mounting ring for a center disk. The mounting ring for the center disk is secured to the reinforcing ring and then to the rim center disk.

Description

[Technical Field]

[0001] The present invention relates to mechanical engineering in general and in particular to the industry of manufacturing the central metal part of automobile wheels, i.e. the rim on which the tire is mounted. More specifically, the invention relates to a prefabricated rim with adjustable width for mounting tires on automobiles in all its variations, whether for domestic, commercial or industrial use, with the particularity that its width can be adjusted as required to fit different tire widths. [Background technology]

[0002] In today's automotive industry, all vehicles require a wheel system for movement, and within that system, rims are widely known that are designed and constructed to mount tires.

[0003] According to the Spanish Royal Academy, a rim is the central metal part of a vehicle wheel on which the tire is mounted.

[0004] The function of the rim is to receive and hold the tire, and it is designed and constructed to be attached and fastened to a suspension mass mount that supports the rim, which in turn supports the tire and sometimes other systems that connect it to the driveline.

[0005] The dimensions and specifications of the rim's strength, construction, design and shape are precisely calculated for the vehicle's capabilities and dimensions.

[0006] Rims are available in a variety of types depending on the material they are made from, such as steel, aluminum, magnesium or alloy rims, and depending on the design and construction, there are sports rims and classic rims, or rims for commercial and industrial use, depending on the requirements of the application.

[0007] Rim size depends on the type of vehicle, its size and weight, and its use and purpose, and changing the rims will affect alignment, braking, acceleration, and / or even speedometer calibration.

[0008] Rims are designed and constructed to mount and support a tire, and while the type of tire being mounted must be taken into consideration, all tires generally have the following structure: a tread, which is the area or surface where the tire comes into contact with the road and where it rolls on the road, forming lines and grooves; a shoulder, which is the area where the tread and sidewall come into contact; and a sidewall, which is the lateral area of ​​the tire, whose edges define a bead, which, when mounted, fits between the bed or bead seat of the rim and a lip, eyebrow, or flange. This lip, eyebrow, or flange, and bead prevent the tire from coming off the rim.

[0009] A problem in the current vehicle tire rim industry is that rims are designed and constructed by manufacturers with very specific height and width dimensions depending on the type of vehicle, weight, and use of the vehicle, i.e., personal, passenger, freight, urban, or rural, and rims are designed and manufactured with very specific shapes and height and width dimensions for each vehicle.

[0010] In addition, some rims are manufactured with aesthetics, shape, and appearance in mind to suit consumer preferences, so that if a consumer who has purchased a vehicle with rims of a particular type, shape, and design needs or prefers to fit other rims of a different design, shape, and appearance that allow for the fitting of tires of a different size, they will have to purchase other rims, incurring another additional cost.Similarly, if a consumer wishes to change the width of a rim, for example, to change driving parameters, to improve the appearance of the vehicle with tires on larger rims, or to reduce costs as smaller diameter tires are generally much cheaper, these changes are only possible as long as safety standards are guaranteed.

[0011] This forces manufacturers to produce rims of different designs, constructions, shapes and sizes, resulting in increased costs, the need for more storage space, and increased production and transportation costs.

[0012] Additionally, there are rims where the center or central star is interchangeable and can be positioned either towards the outer body, called a positive displacement rim, exactly in the center, called a zero displacement rim, or towards the inner body, called a negative displacement rim, depending on the rim design and configuration. However, the entire circumference of the rim, ring, or drum, must be purchased depending on where you want the center to be, making them very expensive rims, costing between $3,000 and $3,500 for very specific brands, and due to their high price, they are in low demand and are primarily used in luxury cars.

[0013] It is known that custom rims can be manufactured using Custom Numerical Control (CNC), but they are very expensive, costing around $5,000, are difficult to obtain, and these rims are also made to specific dimensions, and once manufactured, their width cannot be changed.

[0014] In order to solve the existing problems already broadly described, the present invention has been developed, which consists of a prefabricated, width-adjustable standard rim for mounting tires on motor vehicles, in all its variations, for domestic, commercial or industrial use, the rim having the particularity that its width can be adjusted as required to fit different tire widths, provided that the requirements and guarantees of safety standards are met.

[0015] A search was carried out to identify the closest prior art and the following documents were found:

[0016] CN209521478, filed December 18, 2018, by Wu Chengyuan, discloses an adjustable rim formed by combining a left rim assembly and a right rim assembly, including a recessed part, spokes, an axle matching part, a fixed matching body, an adjustment part, an adjustment element, and a clamp shaft. The clamp adjustment body has a positioning hole that matches the positioning shaft on the axle clamp. The adjustment element matches the adjustment part, and the adjustment body on the adjustment element rotates to drive threaded parts on two ends of the adjustment body, causing horizontal movement of the adjustment part that matches with the adjustment element. This provides an adjustable rim that effectively solves the problem of poor fit by increasing the adhesion between the rim and tire and improving the fit between the rim and tire.

[0017] However, this rim is a rim designed to allow diameter adjustment of the tire mounting portion, and allows very precise adjustment of the diameter only, but not the width.

[0018] Additionally, KR101347172(B1) by Mun Hwa Seong, dated December 17, 2012, discloses a tire testing wheel with an adjustable rim width, which is used when the rim width is changed while the diameter remains the same. The tire testing wheel is used when the rim width of a tire is changed during a stationary or low-speed test in a laboratory where the load stress is small, rather than during high-speed running. For the purposes of the present invention, a tire wheel includes a center portion (3) connected to and fastened to an axle, spoke members (4) extending radially from the center portion (3), and a rim edge (5) connected to the spoke members (4) and on which a tire is mounted. A spring damper (7), elastically supported by a spring (6), is connected between the front portion (5a) and the rear portion (5b) of the rim edge (5). A driven bevel gear (8a) attached to the spring damper (7) meshes with a drive bevel gear (8b). The rim edge (Y), which is the distance between the front surface (5a) and the rear surface (5b) of the rim edge (5), is adjusted by changing the axis (7a) of the spring damper (7), because the driven bevel gear (8a) meshing with the driving bevel gear (8b) is moved by the rotation of the screw shaft (10) when the axis (9) of the driving bevel gear (8b) meshes with the inner helix (10a) of the screw shaft (10) using a threaded coupling method.

[0019] However, as mentioned above, the structural configuration of the rim in this document is significantly different from that of the present invention and is intended only for tire testing, i.e., the rim in this document cannot be mounted on a vehicle that is fitted with tires for everyday use, and is not designed to withstand loads and stresses.

[0020] The present invention was developed in response to the need for an adjustable width assembly rim for mounting tires on automobiles in all their variations, whether domestic, commercial or industrial, with the particularity that the width can be adjusted as needed to accommodate different tire widths. This invention is undoubtedly a technological advancement in the automotive industry. [Objective of the Invention]

[0021] The main objective of the present invention is to make available an adjustable width prefabricated rim for mounting tires on automobiles, making its assembly flexible and allowing the width to be changed to accommodate different required tire sizes, thereby reducing existing manufacturing and storage costs.

[0022] Another object of the present invention is to provide an adjustable width assembled rim for mounting tires on automobiles, which allows for a reduction in storage volume as long as the performance or specifications, use, type, and size of the vehicle or the needs of the user are met, and provides consumers with the possibility of avoiding the purchase of various rims of different designs, structures, or core configurations for the same vehicle.

[0023] Another object of the present invention is to provide an adjustable width prefabricated rim for mounting tires on automobiles, which reduces production costs and therefore the selling price to consumers.

[0024] Another object of the present invention is to provide an adjustable width prefabricated rim for mounting tires on automobiles, which reduces raw materials during manufacturing and reduces raw material waste during manufacturing.

[0025] Another object of the present invention is to provide an adjustable width assembled rim for mounting tyres on motor vehicles, which offers high safety in terms of its structural and mechanical resistance.

[0026] Another object of the present invention is to provide an adjustable width assembled rim for mounting tires on a motor vehicle, having the particularity of being able to change width to accommodate and mount wider or narrower tires.

[0027] Another object of the present invention is to provide an adjustable width assembled rim for mounting tires on automobiles, with centers that can be interchanged with those of different configurations, designs, shapes, and locations, providing manufacturers with a range of possibilities for rim combinations that are not currently possible.

[0028] It also includes all the features and objectives that will become apparent upon reading the general and detailed description of the invention supported by the illustrated embodiments. Summary of the Invention

[0029] In general, an adjustable width assembled rim for mounting a tire on a motor vehicle comprises a central cylindrical drum which, when viewed from the front in a horizontal position, defines two inner and outer sides bounded by a central portion, the central portion defining two spaced apart annular stop edges; each side having on its outer surface and its inner surface a plurality of anti-rotation edges and channels axially alternating over its entire circumferential surface configured to axially receive a C-shaped insert, each C-shaped insert defining an outer wall and an inner wall. The tire assembly comprises a double-walled cylindrical body having an inner surface with a plurality of anti-rotation edges and channels, the inner surfaces of the outer and inner walls having the same configuration as a plurality of axially alternating anti-rotation edges and channels, allowing axial movement of the inner and outer sides of the central cylindrical drum to a sealing wall that functions as a sealing end or stop for each of the C-shaped inserts; each insert has a cord on the outer surface of the outer wall and an outer cord on the outer surface of the inner wall, each C-shaped insert configured to threadably receive a C-shaped tire mounting ring; each of these rings is also called a flange or tab. Each C-shaped tire mounting ring has a closed end with a protruding annular lip, whereby the bead is retained to prevent disengagement, and each C-shaped tire mounting ring has a double wall defining an outer wall with a cord on its inner surface and an inner wall with a cord on its inner surface, whereby the C-shaped tire mounting ring is threaded onto the C-shaped insert; and the C-shaped tire mounting ring and the C-shaped insert have respective axial through holes at the closed end, the axial through holes configured to axially receive fastening means, the fastening means being axially disposed on the annular edges of the inner and outer ends of the central cylindrical drum. the entire assembly is fastened together by passing through radially extending holes in the central cylindrical drum; a reinforcing ring having a plurality of radially extending holes is provided with fastening means in the radially extending holes in the central band within the central cylindrical drum, the central disc ring mounting rim is fastened to the central disc ring mounting rim by the same fastening means in the radially extending reinforcing rings at the radially extending holes in the inner surface of the mounting ring, and finally, the central disc ring is fastened to the central disc ring mounting rim by axially extending fastening means in the axially extending holes in the central disc ring mounting rim near its outer edge and in the axial holes in the central disc ring mounting rim;The central disc ring has a central hole and respective through holes distributed circumferentially around the central hole for the passage of the mass cylinder end and the rim fixing stud, respectively; the central cylindrical drum has threaded pivot holes extending axially at its edge and also passing through the outer C-shaped insert (11) and the outer C-shaped tire mounting ring (19), in which threaded tire air filling pivots are attached;

[0030] In a preferred embodiment of the invention, the width of the C-shaped insert is equal to the width of the side of the central cylindrical drum.

[0031] In a preferred embodiment of the present invention, the C-shaped tire mounting rings are interchangeable with other rings that are wider or narrower, and their lengths can be changed to be wider or narrower depending on the width of the tire being mounted.

[0032] In another embodiment of the present invention, the C-shaped insert, like the C-shaped tire mounting ring, can be replaced with other inserts of wider or narrower widths, depending on the width of the tire being mounted.

[0033] In another embodiment of the present invention, the length of the C-shaped insert is equal to the length of the C-shaped tire mounting ring, which determines the width of the tire that is mounted on the rim of the present invention.

[0034] In a preferred embodiment of the present invention, the rim also includes a safety drum insert for preventing the tire from falling off, which is inserted into the tire before mounting the tire on the rim, and whose edges are pressed against the inner area of ​​the tire bead to prevent the tire from falling off into the inner area of ​​the rim, and the safety drum insert for preventing the tire from falling off also includes a plurality of tabs on its circumferential wall, which allow the tire filling air to circulate and allow the tire to be filled with air.

[0035] In a preferred embodiment of the present invention, the safety drum insert for preventing tire drop-off has a plurality of edges and channels in an annular central region of its inner surface, which are arranged in an axially alternating pattern over the entire circumferential surface of the insert, and the plurality of edges and channels are defined on the circumferential outer surface of the central portion of the central cylindrical drum and are configured to slide axially over corresponding alternating edges and channels to prevent rotation of the safety drum insert for preventing tire drop-off.

[0036] In a preferred embodiment of the present invention, the safety drum insert for preventing tire removal has two circumferential channels with rounded edges at its end edges, and the two circumferential channels are designed to be fastened by clamping elements of a machine, mandrel, or equipment used to fasten and insert the safety drum insert for preventing tire removal into the tire and facilitate mounting the tire on the rim.

[0037] In a preferred embodiment of the invention, the threaded hole in the pivot of the central cylindrical drum terminates in a reduction that allows air to pass and prevents the pivot from being inserted further inside before reaching one of the annular stop edges in the central part of the central cylindrical drum, the reduction also serving as an opposing wall or stop for accommodating a rubber ring that is placed between the channel and the pivot.

[0038] In a preferred embodiment of the invention, the central portion defining the two spaced apart annular stop edges and separating the two sides of the central cylindrical drum defines a circumferential tire mounting channel, allowing the tire beads to pass at an angle, parallel to the face of the rim, towards the end where they will ultimately be mounted.

[0039] In a preferred embodiment of the present invention, the central region within the central cylindrical drum, to which the reinforcing ring is fastened, is a channel located centrally on the inner surface, surrounding the entire circumference of the central cylindrical drum and provided with a plurality of radially arranged holes to receive fastening means for fastening the reinforcing ring.

[0040] In a preferred embodiment of the present invention, the circumferential tire mounting channel defined in the central portion, which defines two annular stop edges spaced apart from each other and separates the two sides of the central cylindrical drum, is provided with a slope in the region of its inner side to facilitate the mounting of the tire beads.

[0041] In a preferred embodiment of the invention, the reinforcing ring has a cross section that allows its diameter to be reduced to facilitate assembly within the central region within the central cylindrical drum.

[0042] In another embodiment of the invention, the C-shaped insert includes an outer annular channel located near the closed end and configured to facilitate installation by allowing attachment with tools commonly used to mount tires.

[0043] In another embodiment of the present invention, the C-shaped insert includes a circumferential gland channel formed on a face of the closed end, the circumferential gland channel configured to receive a rubber ring having an airtight seal against a corresponding C-shaped tire mounting ring; preventing air leakage.

[0044] In another preferred embodiment of the invention, the C-shaped tire mounting ring defines an inner circumferential stop with a rounded edge in the area of ​​the closed end to prevent the tire bead from moving inward after it has been mounted on the circumferential flat bed or bead seat, the tire bead being located on the circumferential flat bed or bead seat, the circumferential flat bed or bead seat being adjacent to an area outer than the inner circumferential stop, and a depending circumferential bead portion being located outer than the circumferential flat bed or bead seat, the depending circumferential bead portion assisting in mounting the tire bead and facilitating its positioning on the circumferential flat bed or bead seat, and finally, a protruding annular lip, flange, or tab extending circumferentially and designed to prevent the tire bead from coming off the rim after mounting.

[0045] In another embodiment of the invention, the C-shaped tire mounting ring defines an annular clamping channel with rounded edges near the closed end and is designed to be clamped by a clamping tool for installation.

[0046] For a better understanding of the characteristics of the present invention, the present specification accompanies, as an integral part of the description, drawings having an illustrative but non-limiting character and which are described below. [Brief explanation of the drawings]

[0047] [Figure 1] 1 is an exploded view of an adjustable width assembled rim for mounting a tire on an automobile in accordance with a preferred embodiment of the present invention; [Figure 2] 1 is a conventional perspective view of a central cylindrical drum forming part of an adjustable width assembled rim for mounting a tire on a motor vehicle in accordance with a preferred embodiment of the present invention; FIG. [Figure 3] 1 is an axial cross-sectional view of a central cylindrical drum that is part of a width-adjustable assembled rim for mounting tires on motor vehicles in accordance with a preferred embodiment of the present invention; FIG. [Figure 4] 1 is a conventional perspective view of a C-shaped insert that constitutes an adjustable width assembled rim for mounting a tire on an automobile in accordance with a preferred embodiment of the present invention; FIG. [Figure 5] 1 is a cross-sectional view of a C-shaped insert constituting a width-adjustable assembled rim for mounting a tire on an automobile in a preferred embodiment of the present invention, showing its structural configuration. [Figure 6] 1 is a conventional perspective view of a C-shaped tire mounting ring constituting an adjustable width assembled rim for mounting a tire on an automobile in accordance with a preferred embodiment of the present invention; FIG. [Figure 7] 1 is a cross-sectional view of a C-shaped tire mounting ring constituting an adjustable width assembly rim for mounting a tire on an automobile in a preferred embodiment of the present invention. [Figure 8]1 is a conventional perspective view of a reinforcing ring that constitutes a width-adjustable assembled rim for mounting a tire on an automobile in accordance with a preferred embodiment of the present invention; [Figure 9] 1 is a conventional perspective view of a rim center disc mounting ring that constitutes an adjustable width assembled rim for mounting a tire on an automobile in accordance with a preferred embodiment of the present invention; FIG. [Figure 10] 1 is a conventional perspective view of a rim center disk that constitutes a width adjustable assembled rim for mounting a tire on a motor vehicle in accordance with a preferred embodiment of the present invention; FIG. [Figure 11] FIG. 1 is a conventional perspective view of a safety drum insert for preventing a tire from falling off, which is installed in a tire before being mounted on a rim according to the present invention, and is an embodiment for enhancing the safety of tire mounting. [Figure 12] 1 is a conventional perspective view of a tire mounted on a rim forming an adjustable width assembled rim for mounting the tire on a motor vehicle in accordance with a preferred embodiment of the present invention; FIG. DETAILED DESCRIPTION OF THE INVENTION

[0048] For a better understanding of the present invention, a detailed description will now be made of some of the embodiments thereof, which are shown for illustrative and not limiting purposes in the drawings appended hereto.

[0049] The specific details of the adjustable width assembled rim for mounting tires on a motor vehicle are clearly shown in the following description and the accompanying drawings, in which like parts are given like reference numerals.

[0050] Referring to FIG. 1, an adjustable width assembled rim (1) for mounting a tire (2) on a motor vehicle comprises a central cylindrical drum (3) which, when viewed from the front in a horizontal position, defines inner and outer side portions (4, 5) bounded by a central portion (6), the central portion (6) defining two annular stop edges (7, 8) spaced apart from one another; each side has on its outer and inner surfaces a plurality of anti-rotation edges (9) extending axially and alternating over its entire circumferential surface, configured to axially receive a C-shaped insert (11). ) and anti-rotation channels (10), each C-shaped insert (11) comprising a double-walled cylindrical body defining an outer wall (12) and an inner wall (13), the inner surfaces of which have an identical configuration of a plurality of axially alternating anti-rotation edges (14) and anti-rotation channels (15) to allow axial movement of the inner (4) and outer (5) sides of the central cylindrical drum (3) up to a sealing wall which serves as the closed end (16) of each C-shaped insert (11); each insert having a cord (17) on the outer surface of the outer wall (12), Each C-shaped insert (11) has an outer cord (18) on the outer surface of its inner wall (13), and is configured to threadably receive a C-shaped tire mounting ring (19), each of which has a closed end (20) with a protruding annular lip, flange, or tab (21) where a bead (22) is retained for mounting on a bead bed or seat (54, see FIG. 7) that prevents the tire (2) from slipping off. Each C-shaped tire mounting ring (19) has an outer wall (23) with a cord (24) on its inner surface and a cord (26). a double wall defining an inner wall (25) on the inner surface, by which the C-shaped tire mounting ring (19) is threaded onto the C-shaped insert (11); the C-shaped tire mounting ring (19) and the C-shaped insert (11) have respective axial through holes (27) at their closed ends (16, 20), the axial through holes (27) being configured to axially receive fastening means (28) which pass through holes (29) axially provided in the end edges (30) of the inner (4) and outer (5) sides of the central cylindrical drum (3) to fasten the entire assembly;A reinforcing ring (31) having a plurality of radial through holes (32) is provided with fastening means (33) in radial holes (34, see Figures 2 and 3) in a central band within the central cylindrical drum (3), a rim central disc mounting ring (35) is fastened by the same fastening means (33) of the radially arranged reinforcing ring (31) in radial holes (36) in the inner surface of the mounting ring (35), and finally, a rim central disc (37) is fastened by axial through holes (39) provided near its outer edge and by axial holes (40) provided in the rim central disc mounting ring (35). It is fastened to the rim central disc mounting ring (35) by axially mounted fastening means (38); the rim central disc (37) has a central hole (41) and respective through holes (42) distributed circumferentially around the central hole (41) for the passage of the mass cylinder end and the rim fixing stud, respectively; the central cylindrical drum (3) has threaded pivot holes (50, see Figure 2) extending axially at its edge and also passing through the outer C-shaped insert (11) and the outer C-shaped tire mounting ring (19), in which threaded tire air inflation pivots (43) are attached;

[0051] The width-adjustable assembled rim (1, see Figures 1 and 11) also includes a safety drum insert (44) for preventing the tire from falling off, which is inserted into the tire (2) before the tire (2) is mounted on the rim, and its edge (45) abuts against the inner area of ​​the bead (22) of the tire (2) to prevent the tire (2) from falling off into the inner area of ​​the rim, and the safety drum insert (44) for preventing the tire from falling off also includes a plurality of tabs (46) on its circumferential wall, which allow the filling air of the tire (2) to circulate and allow the tire to be inflated.

[0052] 2 and 3, the central cylindrical drum (3) defines inner and outer side portions (4, 5) bounded by a central portion (6), which defines two annular stop edges (7, 8) spaced apart from one another; each side portion includes, on its outer surface and its inner surface, a plurality of anti-rotation edges (9) and anti-rotation channels (10) arranged alternately and axially across its circumferential surface, configured to axially receive a C-shaped insert (11, see FIG. 1). The central portion (6), which defines the two annular stop edges (7, 8) spaced apart from one another, bounds the two inner and outer sides (4, 5) of the central cylindrical drum (3) and defines a circumferential tire mounting channel (47) through which the bead (22) of the tire (2) can pass at an angle parallel to the plane of the rim toward the end where it will ultimately be mounted.

[0053] The central region (48, see Figures 2 and 3) within the central cylindrical drum (3) is the part to which the reinforcing ring (31, see the figures) is fastened. It is a channel located in the center of the inner surface, surrounding the entire circumference of the central cylindrical drum (3) and having a plurality of radially arranged holes (34) to receive fastening means for fastening the reinforcing ring (31).

[0054] The circumferential tire mounting channel (47, see Figure 2) is defined by a central portion (6) that defines two annular stop edges (7, 8) spaced apart from each other and that separate two inner (4) and outer (5) sides of the central cylindrical drum (3), and has a slope (p) in the area of ​​the inner portion adjacent to the annular stop edge (7) to facilitate mounting of the bead (22, see Figure 1) of the tire (2, see Figure 1).

[0055] FIG. 2 also shows that the central cylindrical drum (3) has a threaded pivot hole (50) that allows air to pass through before reaching the slope (P) adjacent to the annular stop edge (7) of the central portion (6) and terminates in a reduction that prevents the threaded tire air filling pivot (43, see FIG. 1) from being inserted further inside, the reduction also serving as an opposing wall or stop for accommodating a rubber ring that is placed between the channel and the pivot.

[0056] 4 and 5, the C-shaped inserts (11) consist of a double-walled cylindrical body defining an outer wall (12) and an inner wall (13), the inner surfaces of which have an identical configuration of anti-rotation edges (14) and anti-rotation channels (15) arranged alternately in the axial direction, allowing axial movement of the inner (4, see FIGS. 2 and 3) and outer (5, see FIGS. 2 and 3) sides of the central cylindrical drum (3) up to the sealing wall that serves as the closed end (16) of each of the C-shaped inserts (11); each insert has an outer cord (17) on the outer surface of the outer wall (12) and an outer cord (18) on the outer surface of the inner wall (13).

[0057] The C-shaped inserts (11) have respective axial bores (27) through the closed ends (16) which are configured to axially receive fastening means (28, see Figure 1) which extend through axial holes (29, see Figures 1 and 2) in the end edges (30, see Figures 1 and 2) of the inner (4) and outer (5) sides of the central cylindrical drum (3, see Figures 1 and 2) to fasten the entire assembly together.

[0058] 4 and 5, the C-shaped insert (11) includes an outer annular channel (51) located near the closed end, which is configured to facilitate installation by allowing attachment with tools commonly used for mounting tires. The C-shaped insert (11) also includes a circumferential gland channel (52) on the surface of the closed end (16), which is configured to receive a rubber ring (not shown) for an airtight seal with the corresponding C-shaped tire mounting ring (19, see FIGS. 1, 5, and 6) to prevent air leakage.

[0059] Referring to Figures 6 and 7, the C-shaped tire mounting rings (19) have a closed end (20) with a protruding annular lip, flange, or tab (21) at which the bead (22, see Figure 1) of the tire (2, see Figure 1) is retained so that the bead (22) is mounted on a bead bed or seat (54, see Figure 7) that prevents disengagement, and each ring has a double wall defining an outer wall (23) having a cord (24) on its inner surface and an inner wall (25) having a cord (26) on its inner surface, thereby forming a C-shaped inner ring. the C-shaped tire mounting rings (19) are provided with respective axial through-holes (27) passing through the closed ends (20) which are configured to axially receive fastening means (28, see Figure 1) which extend into axial holes (29, see Figures 1 and 2) in the end edges (30, see Figures 1 and 2) of the inner (4) and outer (5) sides of the central cylindrical drum (3, see Figures 1 and 2) to fasten the entire assembly.

[0060] The C-shaped tire mounting ring (19) (see Figures 6 and 7) defines an inner circumferential stop (53) with a rounded edge in the region of the closed end (20) to prevent the bead (22, see Figure 1) of the tire (2, see Figure 1) from moving inward after being mounted on the circumferential flatbed or bead seat (54), and the bead (22, see Figure 1) of the tire (2, see Figure 1) is located on the circumferential flatbed or bead seat (54), which is in an outer region relative to the inner circumferential stop (53). adjacent to the circumferential flatbed or bead seat (54); a circumferential bead ramp (55) is positioned outboard of the circumferential flatbed or bead seat (54) to aid in the installation of the bead (22, see FIG. 1) of the tire (2, see FIG. 1) by facilitating its positioning on the circumferential flatbed or bead seat (54); and finally, a protruding annular lip, flange, or tab (21) that extends circumferentially and is configured to prevent the bead (22, see FIG. 1) of the tire (2, see FIG. 1) from disengaging from the rim after installation.

[0061] The C-shaped tire mounting ring (19) defines a rounded-edged annular clamping channel (56, see FIG. 6) near the closed end (20) of the inner wall (25) designed for clamping with a clamping tool for installation.

[0062] According to Figure 8, the ring (31) has a number of radial through holes (32) through which the fastening means (33, see Figure 1) are inserted into the radial holes (34, see Figures 2 and 3) in the central band of the central cylindrical drum (3, see Figures 2 and 3). The reinforcing ring (31) has a cross section (57) that allows its diameter to be reduced, facilitating its assembly in the central band (48, see Figures 2 and 3) of the central cylindrical drum (3, see Figures 2 and 3).

[0063] Referring to Figure 9, the rim central disc mounting ring (35) has radial through holes (36) through which the same fastening means (33, see Figure 1) are passed through radial holes (34, see Figures 2 and 3) in the central area of ​​the central cylindrical drum (3) and fastened together with the reinforcing ring (31, see Figure 8).

[0064] According to Figures 9 and 10, the central disc mounting ring (35) is fastened by fastening means (33, see Figure 1) arranged both in the through holes (36) made in the mounting ring (35) and in the holes (32) made in the reinforcing ring (31); finally, the central disc (37) is fastened to the central disc mounting ring (35) by means of axial through holes (39) made near its outer edge and by fastening means (38, see Figure 1) axially arranged in the axial holes (40) made in the central disc mounting ring (35); the rim central disc (37) is provided with a central hole (41) and respective through holes (42) distributed circumferentially around the central hole (41) for the passage of the mass cylinder end and the rim fixing stud (not shown), respectively.

[0065] According to FIG. 11, the safety drum insert (44) for preventing the tire from falling off is inserted into the tire (2) (see FIGS. 1 and 12) before the tire (2) is mounted on the rim (1), and its edge (45) abuts against the inner region of the bead (22, see FIG. 1) of the tire (2, see FIGS. 1 and 12) to prevent the tire (2) from falling off into the inner region of the rim, and the safety drum insert (44) for preventing the tire from falling off also has a plurality of tabs (46) on its circumferential wall, which allow the filling air of the tire (2) to circulate and allow the tire to be filled with air.

[0066] The safety drum insert (44) for preventing tire detachment has, in an annular central region (58) of its inner surface, a plurality of anti-rotation edges (59) and anti-rotation channels (60) that are provided alternately in the axial direction over the entire circumferential surface of the insert, and the plurality of anti-rotation edges (59) and anti-rotation channels (60) are configured to slide in the axial direction over corresponding anti-rotation edges (7a, see Figure 2) and anti-rotation channels (7b, see Figure 2) that are defined on the circumferential outer surface of the annular stop edge (7) of the central cylindrical drum (3), thereby preventing rotation of the safety drum insert (44) for preventing tire detachment.

[0067] The tire drop prevention safety drum insert (44) has two circumferential channels (61) with rounded edges at its end edges, and the two circumferential channels (61) are designed to be fastened by clamping elements of a machine, mandrel, or equipment used to fasten and insert the tire drop prevention safety drum insert (44) into the tire and facilitate mounting the tire on the rim.

[0068] FIG. 12 shows a conventional perspective view of a tire (2) mounted on a width-adjustable assembly rim (1) for mounting the tire on the automobile of the present invention, in a preferred embodiment of the present invention.

[0069] The present invention has been sufficiently described so that a person of average skill in the art can reproduce and obtain the results described in the present invention.

Claims

1. A width-adjustable assembly rim for mounting a tire on an automobile, a central cylindrical drum defining two inner and outer sides, separated by a central portion defining two spaced apart annular stop edges, each side having a plurality of anti-rotation edges and channels on its outer surface and its inner surface, alternating in the axial direction over its entire circumferential surface; two C-shaped inserts, each formed by a double-walled cylindrical body defining an outer wall and an inner wall, the inner surfaces of the outer and inner walls having a plurality of anti-rotation edges and channels arranged alternately in the axial direction to allow axial coupling at the inner and outer sides of the central cylindrical drum up to the limit of the closed end of each C-shaped insert, each insert having a cord on the outer surface of the outer wall and an outer cord on the outer surface of the inner wall; two C-shaped tire mounting rings, each having a closed end with a protruding annular lip, flange, or tab, where a tire bead is retained to prevent the tire from falling off, each ring having a double wall defining an outer wall with a cord on its inner surface and an inner wall with a cord on its inner surface, whereby each ring is threaded into a corresponding C-shaped insert; The present invention is characterized by the following: the C-shaped tire mounting ring and the C-shaped insert each have an axial through-hole at the closed end configured to axially receive fastening means passing through axial holes in the annular edges of the inner and outer side ends of the central cylindrical drum to fasten the entire assembly; a reinforcing ring having a plurality of radially extending through-holes, the reinforcing ring having fastening means in the radially extending holes in the central band within the central cylindrical drum; a central disc ring mounting rim fastened to radial holes on the inner surface of the mounting ring by the same fastening means as the stiffening ring; the central disc ring is fastened to the central disc ring mounting rim by fastening means mounted axially in axial through-holes provided near its outer edge and in axial holes provided in the central disc ring mounting rim, the central disc ring having both a central hole and through-holes distributed circumferentially around the central hole for the passage of mass cylinder ends and rim fixing studs, respectively; a threaded tire inflation pivot configured to be inserted into a threaded pivot hole formed axially in an edge of the central cylindrical drum, the threaded pivot hole extending axially to the central portion and passing through an outer side of a corresponding C-shaped insert and an outer side of a corresponding C-shaped tire mounting ring; An assembled rim, wherein a safety drum insert for preventing the tire from falling off is inserted into the tire before the tire is mounted on a rim, and after mounting, its edge abuts against the inner region of the tire bead to prevent the tire from falling off into the inner region of the rim, and the safety drum insert for preventing the tire from falling off has a plurality of tabs on its circumferential wall, thereby allowing the tire filling air to circulate and enable the tire to be filled with air.

2. 2. The width-adjustable assembly rim for mounting tires on automobiles according to claim 1, characterized in that the C-shaped tire mounting ring can be replaced with another ring of a wider or narrower width depending on the width of the tire to be mounted.

3. 2. The width-adjustable assembled rim for mounting tires on a vehicle according to claim 1, characterized in that the C-shaped insert, like the C-shaped tire mounting ring, can be replaced with another insert of a wider or narrower width depending on the width of the tire to be mounted.

4. 2. The width-adjustable assembled rim for mounting tires on automobiles according to claim 1, wherein the length of the C-shaped insert is equal to the length of the C-shaped tire mounting ring, and the length determines the width of the tire mounted on the rim.

5. 2. The width-adjustable assembled rim for mounting a tire on an automobile according to claim 1, wherein the safety drum insert for preventing the tire from falling off has a plurality of edges and channels in an annular central region of its inner surface, the edges and channels being provided axially alternately over the entire circumferential surface, the plurality of edges and channels fitting with corresponding alternating axial edges and channels in the circumferential outer surface of the central portion of the central cylindrical drum to prevent rotation of the safety drum insert for preventing the tire from falling off.

6. 2. The width-adjustable assembled rim for mounting a tire on an automobile according to claim 1, characterized in that the safety drum insert for preventing the tire from falling off has two circumferential channels at its edge, the two circumferential channels being designed to be fastened by clamping elements of a machine, mandrel or equipment used to fasten and insert the safety drum insert for preventing the tire from falling off into the tire and to facilitate mounting the tire on a rim.

7. 2. The width-adjustable assembled rim for mounting a tire on an automobile according to claim 1, characterized in that the threaded pivot hole of the central cylindrical drum terminates in a reduction that allows air to pass through and prevents the pivot from being inserted further inside before reaching one of the annular stop edges of the central part of the central cylindrical drum, the reduction also serving as an opposing wall or stop for accommodating a rubber ring that is placed between the channel and the pivot.

8. 2. The adjustable width assembled rim for mounting tires on a motor vehicle according to claim 1, characterized in that the central portion defining two annular stop edges spaced apart from each other and dividing the two sides of the central cylindrical drum defines a circumferential tire mounting channel, allowing the tire beads to pass at an angle, parallel to the face of the rim, towards the end of the final assembly.

9. 9. The width-adjustable assembled rim for mounting a tire on a motor vehicle according to claim 8, characterized in that the circumferential tire mounting channel defined in the central portion, which defines two annular stop edges spaced apart from each other and divides the two sides of the central cylindrical drum, has a slope in the area of ​​its inner portion, which facilitates the mounting of the tire beads.

10. 2. The adjustable width assembled rim for mounting a tire on a motor vehicle according to claim 1, characterized in that the reinforcing ring has a cross section that allows its diameter to be reduced, facilitating mounting within the central region of the central cylindrical drum.

11. 2. The width-adjustable assembled rim for mounting tires on an automobile according to claim 1, characterized in that the C-shaped insert has an outer annular channel disposed near the closed end, the outer annular channel being configured to allow fastening with tools commonly used for mounting tires to facilitate mounting.

12. 2. The adjustable width assembled rim for mounting a tire on an automobile according to claim 1, wherein the C-shaped insert comprises a circumferential gland channel provided in a face of the closed end, the circumferential gland channel being configured to receive a rubber ring having an airtight seal against a corresponding C-shaped tire mounting ring to prevent air leakage.

13. 2. The width-adjustable assembled rim for mounting tires on a motor vehicle according to claim 1, characterized in that the C-shaped tire mounting ring also defines an inner circumferential stop with a rounded edge in the region of the closed end, which prevents the tire bead from moving inward after it is mounted on the circumferential flat bed or bead seat, the tire bead being positioned on the circumferential flat bed or bead seat, the circumferential flat bed or bead seat being adjacent to an outer region of the inner circumferential stop, and a circumferential bead ramp is arranged outer than the circumferential flat bed or bead seat, which assists in mounting the tire bead by facilitating its positioning on the circumferential flat bed or bead seat, and the circumferential bead ramp is adjacent to the protruding annular lip, flange or tab that prevents the tire bead from coming off the rim after mounting.

14. 2. The adjustable width assembly rim for mounting a tire on a motor vehicle according to claim 1, characterized in that the C-shaped tire mounting ring defines an annular fastening channel with rounded edges near the closed end, the annular fastening channel being designed for fastening with an installation fastening tool.

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