Width-adjustable assemblable rim for mounting tire on motor vehicle

Abstract

The invention relates to an assemblable and width-adjustable rim for mounting a tire on a motor vehicle. The rim includes a central tubular drum, both sides of which are defined by a central portion with two annular stop edges. Each side portion is configured to receive a C-shaped double wall insert in an axial direction up to a stop. Each insert includes a bead on the outer wall and a bead on the inner wall to be screwed together with a 'C'-shaped double-walled tire mounting ring with an end stop. The tire mounting ring defines an outer wall with a bead and an inner wall with an inner wall with a bead. The tire mounting ring and insert comprise: an axial through-hole provided at the closed end so as to receive a pin from the axial direction, the pin penetrating into the through-hole made axially on the annular edge of the central tubular drum to fasten the entire assembly; the inflating pin is provided with a thread; a reinforcing ring mounted inside the drum; and a disc mounting ring which is fastened to the reinforcing ring in a similar manner and is then fixed to the rim center disc.

Description

Technical Field

[0001] The present invention generally relates to machinery, and more particularly to the industry of manufacturing the central metal part of a vehicle wheel, on which a tire is mounted, and this central metal part is called a rim. More specifically, it relates to an assembled rim with adjustable width for mounting tires on household, commercial or industrial motor vehicles, and all its variants have the characteristic of being able to adjust its width as needed to adapt to different tire widths. Background Art

[0002] Currently, in the field of the automotive industry, it is well known that every vehicle requires a wheel system to achieve its movement; and, in this system, rims are well known, and they are designed and configured for mounting tires or wheels.

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

[0004] The function of the rim is to receive and hold the tire, and it is designed and configured to be mounted and fixed on the suspension mass mounting, which supports the rim and the tire, and sometimes is also connected to other systems connected to the power train.

[0005] The dimensions and specifications of the strength, structure, design and shape of the rim are precisely calculated according to the capacity and size of the vehicle.

[0006] Depending on the manufacturing material, there are different types of rims, such as steel, aluminum, magnesium or alloy rims; and, depending on their design and structure, or according to the requirements of their applications (such as for commercial and industrial uses), there may be sports rims and traditional rims.

[0007] The size of the rim depends on the type, size and weight of the vehicle, as well as the use or destination, and changing these factors will affect the positioning, braking and acceleration, as well as the calibration of the speedometer and / or others.

[0008] The rim is designed and configured to mount and support the tire, and for this purpose, the type of tire to be mounted on it must also be considered; but generally speaking, all tires include the following structure: the tread, which is the area or surface where the tire contacts the surface on which it rolls, and where the tread pattern and grooves are formed; the shoulder, which is the joining area between the tread and the sidewall; the sidewall is the side area of the tire, and the end edge of the shoulder defines the bead, and when installed, the bead is installed between the bead seat or bead seat and the lip, brow or flange of the rim, and this lip, brow or flange and the bead prevent the tire from detaching from the rim.

[0009] The problem existing in the field of the rim industry for vehicle tires at present is that the rims are designed and configured by manufacturers to have very specific height and width dimensions, which specifically depend on the vehicle type, weight, and the use of the vehicle (whether for private use, passengers, freight, urban or rural, etc.). The design and manufacture of the rims are very specific in terms of shape and size for the height and width of each vehicle.

[0010] In addition, there are also some rims produced by manufacturers considering the aesthetic, shape, and appearance preferences of consumers. Therefore, if a consumer who owns a specific vehicle is equipped with a specific type, shape, and design of rim when purchasing the vehicle, and he / she has the need or preference to install another rim with different dimensions, design, shape, and aesthetics, he / she has to buy other rims, which results in another additional expense for him / her. The same situation also occurs if he / she wants to change the width of the tire, for example, to change some driving parameters to improve the appearance of the vehicle with tires having larger-diameter rims or to save money (because tires with smaller diameters are usually cheaper), and these changes are only possible if safety standards are guaranteed.

[0011] This forces manufacturers to produce rims with different designs, structures, shapes, and sizes, which makes their costs higher, requires more storage areas, and leads to an increase in their production and transportation costs, etc.

[0012] In addition, on the other hand, there is a type of rim in which the central or center star component can be exchanged and its position can be changed (either towards the outside of the vehicle body, called a positive displacement rim, or exactly in the center, called a zero displacement rim, or towards the inside of the vehicle body, called a negative displacement rim, depending on the design and configuration of the rim); however, the entire circumference, ring, or drum of the rim must be purchased according to the position of the center to be positioned, and they are very expensive (with prices ranging from $3000 to $3500) rims from very prestigious brands, and due to the high price, the demand is low, and they are usually used for high-end vehicles.

[0013] On the other hand, it is well known that although custom rims can be manufactured using numerical control machining (CNC) technology, the cost is too high (about five thousand dollars). This makes them difficult to purchase, and they also have specific dimensions, and once manufactured, their width cannot be changed.

[0014] To solve the above-mentioned problems that have been widely discussed, the present invention is proposed, namely an assembled and width-adjustable standard rim for automobile tire assembly and all its variants, applicable to household, commercial, or industrial motor vehicles. This standard rim has the characteristic of being able to adjust its width according to needs to adapt to different tire widths; at the same time, it also meets the requirements and guarantees of safety standards.

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

[0016] Document CN209521478 submitted by Wu Chengyuan on December 18, 2018, discloses an adjustable rim formed by combining a left rim assembly and a right rim assembly. The adjustable rim includes a fitting portion, a spoke, an axle fitting portion, a fastening fitting body, an adjusting portion, an adjusting element, and an axle fastener. The fastening fitting body is provided with a positioning hole that mates with the positioning shaft on the axle fastener. The adjusting element cooperates with the adjusting portion, and the adjusting body on the adjusting element rotates to drive the threaded members at both ends of the adjusting body to perform horizontal movement of the adjusting member that cooperates with the adjusting element. It provides an adjustable rim that can make the rim and the tire fit more closely, improving the fit between the rim and the tire, and thus effectively solving the problem of insufficient fit.

[0017] However, this kind of rim is designed to be able to generate adjustments during tire installation according to the diameter of the tire. It only allows the most precise adjustment in terms of diameter, and its width cannot be adjusted.

[0018] Document KR101347172(B1) submitted by Mun Hwa Seong on December 17, 2012, was also found. It discloses a tire test rim with an adjustable rim width. This tire test rim is used when the diameter is the same and the rim width changes. When the rim width of the tire does not change during rapid driving but changes during slow driving tests with less load stress in a stable state or in a laboratory, this tire test rim is used. For the purpose of the present invention, the tire rim includes a central portion (3) connected and fastened to the wheel axle; spoke members (4) radially extending from the central portion (3); and a rim edge (5) connected to the spoke members (4) for mounting a tire thereon. A spring damper (7) elastically supported by a spring (6) is connected between the front surface portion (5a) and the rear surface portion (5b) of the rim edge (5). A driven bevel gear (8a) mounted on the spring damper (7) meshes with a driving bevel gear (8b). The rim edge (Y) is the distance between the front surface portion (5a) and the rear surface portion (5b) of the rim edge (5), which is adjusted by changing the axis (7a) of the spring damper (7) because the meshing of the driven bevel gear (8a) and the driving bevel gear (8b) is through the rotational operation of the axis (10) of the screw. For example, the axis (9) of the driving bevel gear (8b) meshes with the internal helical portion (10a) of the axis (10) of the screw using a threaded connection method.

[0019] However, it can be seen that the structural configuration of the rim of the said document is very different from the structural configuration of the rim of our invention and is also only used for tire testing, that is to say, it cannot be mounted on a vehicle to mount tires for daily use because it is not configured to withstand loads and stresses.

[0020] In view of the need for an adjustable-width and assemblable rim for mounting tires on domestic, commercial or industrial motor vehicles, all variants of which have the characteristic of being able to adjust their width as required to adapt to different tire widths, the present invention is proposed, which is undoubtedly a technological advancement in the field of the automotive industry.

[0021] Object of the Invention

[0022] The main object of the present invention is to provide an adjustable-width and assemblable rim for mounting tires on a motor vehicle, which allows flexibility in its assembly, reduces existing manufacturing and storage costs by being able to modify its width and adjust it to another required tire size.

[0023] Another object of the present invention is to provide an adjustable-width and assemblable rim for mounting tires on a motor vehicle, which also allows reduction of the storage volume and provides the consumer with the possibility of avoiding purchasing various rims of other designs, structures or central configurations for the same vehicle, and meets the performance or specifications, uses, types and sizes of the vehicle or the needs of the user.

[0024] Another object of the present invention is to provide an adjustable-width and assemblable rim for mounting tires on a motor vehicle, which also reduces the production cost and thus reduces the selling price to the consumer.

[0025] Another object of the present invention is to provide an adjustable-width and assemblable rim for mounting tires on a motor vehicle, which also reduces the raw materials in its manufacturing process and reduces the waste of raw materials in its manufacturing process.

[0026] Another object of the present invention is to provide an adjustable-width and assemblable rim for mounting tires on a motor vehicle, which also provides high safety regarding its structure and mechanical resistance.

[0027] Another object of the present invention is to provide an adjustable-width and assemblable rim for mounting tires on a motor vehicle, which also has the characteristic of being able to change its width to accept and mount tires of different widths.

[0028] Another object of the present invention is to provide an adjustable-width and assemblable rim for mounting tires on a motor vehicle, which also allows the exchange of its center for centers of different configurations, designs, shapes and positions, thus providing the manufacturer with the possibility of a series of rim combinations that are currently not achievable.

[0029] Also, after the general and detailed description of the present invention supported by the illustrated embodiments, all those qualities and objectives will become obvious. Summary of the Invention

[0030] Generally, an assemblable rim with adjustable width for mounting a tire on a motor vehicle includes a central tubular drum which, when viewed from the front in a horizontal position, defines two inner and outer portions separated by a central portion that delimits two annular stop edges spaced apart from each other; wherein each side portion includes on its outer and inner surfaces a plurality of axial anti-rotation edges and anti-rotation grooves which are alternately arranged on its entire circumferential surface and are configured to axially receive a "C"-shaped insert, wherein each "C"-shaped insert is formed by a double-wall tubular body defining an outer wall and an inner wall, and the inner surfaces of the outer wall and the inner wall have a plurality of anti-rotation edges and anti-rotation grooves with the same configuration, and the anti-rotation edges and anti-rotation grooves are axially alternately arranged to allow their axial displacement in the inner and outer portions of the central tubular drum until a sealing wall which acts as a sealing end or a stop in each "C"-shaped insert; and wherein each insert includes a rib on the outer surface of the outer wall and an external rib on the outer surface of the inner wall, and each "C"-shaped insert is configured to threadedly receive a "C"-shaped tire mounting ring; wherein each such ring includes a protruding sealing end (this protruding annular lip is also referred to as a flange or a protrusion), and the bead is held at the protruding annular lip to prevent its disassembly, and each ring for mounting a C-shaped tire includes a double wall which defines an outer wall with a rib on its inner surface and an inner wall with a rib on its inner surface, and they are screwed into the "C"-shaped insert through the ribs; wherein the "C"-shaped tire mounting ring and the "C"-shaped insert include corresponding axial through-holes in the sealing end, and the axial through-holes are configured to axially receive fastening means which pass through holes axially made in the annular edges at the inner and outer ends of the central tubular drum to fasten the entire assembly; a reinforcing ring with a plurality of radial through-holes is mounted in holes radially formed in the central region inside the central tubular drum through the fastening means, and a rim center disc mounting ring is fastened in holes radially made in the inner surface of the mounting ring using the same fastening means as the reinforcing ring; finally, the rim center disc is fastened to the rim center disc mounting ring by a fastening means which is axially mounted in an axial through-hole made near its outer edge and an axial hole made in the rim center disc mounting ring; wherein the rim center disc includes a central hole and corresponding through-holes circumferentially distributed around the central hole for the passage of the ends of the mass cylinders and the rim fixing pins respectively; the central tubular drum includes a threaded pivot hole which axially extends on its edge and also passes through the "C"-shaped insert on the outer side and the "C"-shaped tire mounting ring on the outer side, and a threaded tire inflation pivot is installed therein.

[0031] In a preferred embodiment of the present invention, the width of the "C"-shaped insert is equal to the width of the side portion of the central tubular drum.

[0032] In a preferred embodiment of the present invention, the "C" shaped tire mounting rings are interchangeable with other rings of wider or narrower widths, i.e., their lengths can be varied to provide wider or narrower widths depending on the width of the tire to be mounted.

[0033] In another embodiment of the present invention, like the "C" shaped tire mounting ring, the "C" shaped insert can be interchanged with another insert of wider or narrower width to provide a greater or lesser width depending on the width of the tire to be mounted.

[0034] 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, and their lengths determine the width of the tire to be mounted on the rim of the present invention.

[0035] In a preferred embodiment of the present invention, the rim also includes a tire anti-disassembly safety drum insert, which is inserted into the tire before the tire is mounted on the rim, and wherein the end edge of the insert presses against the inner area of ​​the tire bead to prevent the tire from being disassembled toward the inner area of ​​the rim, and the insert includes a plurality of windows in its circumferential wall so that the inflation air of the tire circulates and the tire can be inflated.

[0036] In a preferred embodiment of the present invention, the tire anti-disassembly safety drum insert includes an annular central area, on the inner surface of which the area includes a plurality of edges and grooves alternating with each other axially on its entire circumferential surface, and the edges and grooves are configured to slide axially on corresponding edges and grooves alternating with each other on the circumferential outer surface defined in the central part of the central tubular drum to prevent the rotation of the tire anti-disassembly safety drum insert.

[0037] In a preferred embodiment of the present invention, the tire anti-disassembly safety drum insert includes two annular grooves with chamfered edges at its end edges, and the annular grooves are designed to be fastened with a fastening element of a machine, spindle or equipment, which is used to fasten and insert it into the tire and facilitate the installation of the tire on the rim.

[0038] In a preferred embodiment of the invention, the threaded pivot hole of the central tubular drum is terminated by a reduction before reaching one of the annular stop edges of the central part of the central tubular drum, which allows air to pass and prevents the pivot from being introduced further inside, the reduction in turn serving as a blocking wall or stop to accommodate a rubber ring arranged between the groove and the pivot.

[0039] In a preferred embodiment of the present invention, the central portion defines two spaced-apart annular stop edges and delimits two lateral portions of the central tubular drum. The central portion defines an annular tire mounting groove that allows the bead of the tire to pass towards its end of final assembly at an angle and parallel to the rim surface.

[0040] In a preferred embodiment of the present invention, the central region within the central tubular drum that secures the reinforcing ring is a groove that is located at the inner center of the side of the inner surface and surrounds the circumference of the central tubular drum, and includes a plurality of holes made in the radial direction to receive the fastening means for securing the reinforcing ring.

[0041] In a preferred embodiment of the present invention, the annular tire mounting groove defined in the central portion defines two spaced-apart annular stop edges and delimits two lateral portions of the central drum. The annular tire mounting groove includes an inclined surface in the inner region, which facilitates the installation of the bead of the tire.

[0042] In a preferred embodiment of the present invention, the reinforcing ring includes a cross-section that allows for a reduction in its diameter to facilitate assembly within the central region of the central tubular drum.

[0043] In another embodiment of the present invention, the "C"-shaped insert includes an external annular groove disposed near the sealed end, which is configured to allow for fastening by a tool commonly used for tire assembly to facilitate tire assembly.

[0044] In another embodiment of the present invention, the "C"-shaped insert includes an annular sealing groove that is formed on the face of the sealed end and is configured to accommodate a sealing rubber ring relative to the corresponding "C"-shaped tire mounting ring to prevent air leakage.

[0045] In another preferred embodiment of the present invention, the "C"-shaped tire mounting ring defines an inner circumferential stop portion with a circular edge in the region of the sealed end to prevent the inward movement of the tire bead once it is installed on the circumferential platform portion or bead seat where the tire bead is located; the circumferential platform portion or bead seat is adjacent to the outer region relative to the inner circumferential stop portion; a circumferential bead bevel portion is disposed outside between the circumferential platform or bead seat to assist in the installation of the tire bead and facilitate its positioning in the circumferential platform portion or bead seat; finally, a protruding annular lip portion, flange or projection is circumferentially distributed and designed to prevent the tire bead from disengaging from the rim after installation.

[0046] In another embodiment of the present invention, the "C"-shaped tire mounting ring defines an annular fixing groove with a circular edge near the closed end, and the annular fixing groove is designed to be fixed by a fixing tool for installation.

[0047] To better understand the features of the present invention, as part of this specification, the present specification is accompanied by drawings with illustrative rather than restrictive features, as described below. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 Shows an exploded view of an adjustable-width assembled rim for mounting a tire on a motor vehicle in a preferred embodiment of the present invention.

[0049] Figure 2 Shows a conventional perspective view of a central tubular drum forming part of an adjustable-width assembled rim for mounting a tire on a motor vehicle in a preferred embodiment of the present invention.

[0050] Figure 3 Shows an axial portion of a central tubular drum forming part of an adjustable-width assembled rim for mounting a tire on a motor vehicle in a preferred embodiment of the present invention.

[0051] Figure 4 Shows a conventional perspective view of a "C"-shaped insert forming part of an adjustable-width assembled rim for mounting a tire on a motor vehicle in a preferred embodiment of the present invention.

[0052] Figure 5 Shows a cross-section of the "C"-shaped insert, showing its structural configuration, which forms an adjustable-width assembled rim for mounting a tire on a motor vehicle in a preferred embodiment of the present invention.

[0053] Figure 6 Shows a conventional perspective view of a "C"-shaped tire mounting ring forming part of an adjustable-width assembled rim for mounting a tire on a motor vehicle in a preferred embodiment of the present invention.

[0054] Figure 7 Shows a cross-section of a "C"-shaped tire mounting ring forming part of an adjustable-width assembled rim for mounting a tire on a motor vehicle in a preferred embodiment of the present invention.

[0055] Figure 8 Shows a conventional perspective view of a reinforcing ring forming part of the adjustable-width assembled rim for mounting a tire on a motor vehicle in a preferred embodiment of the present invention.

[0056] Figure 9 Shows a conventional perspective view of a rim center disc mounting ring forming part of the adjustable-width assembled rim for mounting a tire on a motor vehicle in a preferred embodiment of the present invention.

[0057] Figure 10Shows a conventional perspective view of the rim center disc forming the width-adjustable and assemblable rim for mounting a tire on a motor vehicle in a preferred embodiment of the present invention.

[0058] Figure 11 Shows a conventional perspective view of a tire anti-disassembly safety drum insert that is installed inside the tire before being mounted on the rim of the present invention and is an embodiment that provides greater safety in tire mounting.

[0059] Figure 12 Shows a conventional perspective view of the width-adjustable assemblable rim for mounting a tire on a motor vehicle in a preferred embodiment of the present invention, with the tire mounted thereon.

[0060] For a better understanding of the present invention, some embodiments of the present invention will be described in detail, which are shown in the accompanying drawings that are attached to this specification for illustrative rather than restrictive purposes. Detailed Description of the Invention

[0061] The characteristic details of the width-adjustable assemblable rim for mounting a tire on a motor vehicle are clearly shown in the following description and the accompanying drawings, and the same reference numerals are used to denote the same components.

[0062] Reference Figure 1, An adjustable-width assemblable rim (1) for mounting a tire (2) on a motor vehicle includes a central tubular drum (3) which, when viewed from the front in a horizontal position, defines an inner part (4) and an outer part (5) separated by a central part (6), the central part (6) defining two annular stop edges (7, 8) spaced apart from each other; wherein each side includes on its outer and inner surfaces a plurality of axially distributed anti-rotation edges (9) and anti-rotation grooves (10), the anti-rotation edges and anti-rotation grooves being alternating with each other over their entire circumferential surface and configured to axially receive a "C"-shaped insert (11), wherein each "C"-shaped insert (11) is constituted by a double-wall tubular body defining an outer wall (12) and an inner wall (13), the inner surfaces of which have the same configuration of a plurality of anti-rotation edges (14) and anti-rotation grooves (15) alternating with each other in the axial direction to allow their axial displacement in the inner part (4) and the outer part (5) of the central tubular drum (3) until a sealing wall serving as a sealing end (16) on each "C"-shaped insert (11); wherein each "C"-shaped insert includes a rib (17) on the outer surface of the outer wall (12) and an outer rib (18) on the outer surface of the inner wall (13), each "C"-shaped insert (11) being configured to threadedly receive a C-shaped tire mounting ring (19), wherein each of these rings includes a sealing end (20) having a protruding annular lip, flange or projection (21), wherein, due to the bead being mounted on the bead seat or seat (54, see Figure 7 ) of the tire (2), the bead (22) is held at this sealing end (20), which prevents its disassembly; and each C-shaped tire mounting ring (19) includes a double wall which defines an outer wall (23) having a rib (24) on its inner surface and an inner wall (25) having a rib (26) on its inner surface, and they are screwed into the "C"-shaped insert (11) by the ribs; wherein the "C"-shaped tire mounting ring (19), the "C"-shaped insert (11) includes a corresponding axial through-hole (27) in the sealing ends (16, 20), the axial through-hole being configured to axially receive a fastening device (28), the fastening device (28) passing through a hole (29) axially made in an edge (30) at the ends of the inner part (4) and the outer part (5) of the central tubular drum (3) to fasten the entire assembly; a reinforcing ring (31) having a plurality of through-holes (32) in the radial direction is mounted in a hole (34, see Figure 2 and 3) therein; the rim center disc mounting ring (35) is fastened in a hole (36) made radially in the inner surface of the mounting ring (35) by the same radially arranged fastening means (33) as the reinforcing ring (31); finally, the rim center disc (37) is fastened to the rim center disc mounting ring (35) by fastening means (38) axially mounted in an axial through hole (39) made near its outer edge and an axial hole (40) made in the rim center disc mounting ring (35); wherein the rim center disc (37) includes a central hole (41) and corresponding through holes (42) circumferentially distributed around the central hole (41) for the passage of the ends of the mass cylinders and the rim fixing pins respectively; the central tubular drum (3) includes threaded pivot holes (50, see Figure 2 ), which axially extend at its edge and also pass through a C-shaped insert (11) on the outer side and a C-shaped tire mounting ring (19) on the outer side, where a threaded tire inflation pivot (43) is mounted.

[0063] The width-adjustable and assemblable rim (1, see Figure 1 and 11 ) further includes a tire anti-disassembly safety drum insert (44), which is inserted into the tire (2) before being mounted on the rim, and the end edge (45) of which presses against the inner area of the bead (22) of the tire (2), preventing the tire (2) from being disassembled towards the inner area of the rim. The circumferential wall of the tire anti-disassembly safety drum insert includes a plurality of windows (46) such that the inflation air of the tire (2) circulates and the tire can be inflated.

[0064] Referring to Figure 2 and Figure 3 , the central tubular drum (3) defines an inner part (4) and an outer part (5) separated by a central part (6), and the central part (6) defines two annular stop edges (7, 8) spaced apart from each other; wherein each side includes a plurality of anti-rotation edges (9) and anti-rotation grooves (10) distributed in the axial direction on its outer surface and inner surface, and the plurality of anti-rotation edges (9) and anti-rotation grooves (10) alternate with each other on its entire circumferential surface and are configured to axially receive a "C" - shaped insert (11, see Figure 1 ). The central part (6) defines two annular stop edges (7, 8) spaced apart from each other, and defines two lateral inner parts (4) and outer parts (5) of the central tubular drum (3). The central part defines an annular tire mounting groove (47), which allows the bead (22) of the tire (2) to pass towards its finally assembled end at an angle and parallel to the rim surface.

[0065] The central region (48, see Figure 2 and Figure 3) Located inside the central tubular drum (3), within which the reinforcing rings (31, see Figure 1 ) are fixed. The central region is a groove located at the center of the inner side, which surrounds the circumference of the central tubular drum (3) and includes a plurality of radially arranged holes (34) for receiving fastening means for fixing the reinforcing rings (31).

[0066] The annular tire mounting groove (47, see Figure 2 ) is defined on the central portion (6), which defines two mutually spaced annular stop edges (7, 8), and defines two side portions, namely the inner side portion (4) and the outer side portion (5) of the central tubular drum (3). The region of the inner side portion adjacent to the annular stop edge (7) includes an inclined surface (p), which facilitates the installation of the bead (22, see Figure 1 ) of the tire (2, see Figure 1 ).

[0067] Figure 2 It is also shown that the central tubular drum (3) includes a threaded pivot hole (50), which is terminated by a reduced portion before the inclined surface (p) adjacent to the annular stop edge (7) of the central portion (6). This reduced portion allows air to pass through and prevents the threaded tire inflation pivot (43, see Figure 1 ) from being further introduced inward. At the same time, it also serves as a blocking wall or a stop to accommodate a rubber ring provided between the groove and the pivot.

[0068] According to Figure 4 and Figure 5 , the "C"-shaped insert (11) is composed of a double-walled tubular body defining an outer wall (12) and an inner wall (13), and its inner surface has the same structure, namely a plurality of anti-rotation edges (14) and anti-rotation grooves (15) alternating with each other in the axial direction, so that these inserts can axially move within the inner side portion (4, see Figure 2 , 3 ) and the outer side portion (5, see Figure 2 , 3 ) of the central tubular drum (3) until reaching the sealing wall that acts as a sealing end (16) in each of the "C"-shaped inserts (11); each insert is provided with outer ridges (17) on the outer surface of the outer wall (12) and outer ridges (18) on the outer surface of the inner wall (13).

[0069] The "C"-shaped insert (11) includes a corresponding axial through-hole (27) passing through the sealing end (16), which is configured to axially receive a fastening means (28, see Figure 1 ), and this fastening means penetrates into the central tubular drum (3, see Figure 1 and Figure 2) the edges (30, see Figure 1 and Figure 2 ) of the inner part (4) and the outer part (5) of the Figure 1 and Figure 2 ) in which holes (29, see

[0070] According to Figure 4 and Figure 5 , the "C"-shaped insert (11) includes an external annular groove (51) provided near the sealed end, and this annular groove is configured to allow attachment thereto by common tire mounting tools to facilitate their installation. In addition, the "C"-shaped insert (11) includes an annular sealing groove (52) machined on the surface of the closed end (16), and this sealing groove is configured to accommodate an airtight sealing rubber ring (not shown in the figure), and this rubber ring is used in cooperation with the corresponding "C"-shaped tire mounting ring (19, see Figure 1 , Figure 5 and Figure 6 ) to prevent air leakage.

[0071] Referring to Figure 6 and Figure 7 , the "C"-shaped tire mounting ring (19) includes a closed end (20) having a protruding annular lip, flange or projection (21), because the bead (22) is mounted at the bead seat / seat (54, see Figure 7 ), so the bead (22, see Figure 1 ) of the tire (2, see Figure 1 ) is held at this sealed end (20), which can prevent the bead from being disassembled. Each mounting ring includes a double wall, defining an outer wall (23) with ribs (24) on its inner surface and an inner wall (25) with ribs (26) on its inner surface, and these ribs are screwed together in cooperation with the threads on the "C"-shaped insert (11, see Figure 4 and Figure 5 ). Among them, the "C"-shaped tire mounting ring (19) includes a corresponding axial through-hole (27) passing through the closed end (20), and this axial through-hole is configured to axially receive a fastening device (28, see Figure 1 ), and this fastening device penetrates all the way into the holes (29, see Figure 1 and Figure 2 ) axially formed on the edges (30, see Figure 1 and Figure 2 ) of the inner part (4) and the outer part (5) of the central tubular drum (3, see Figure 1 and Figure 2 ) to fasten the entire assembly.

[0072] The "C"-shaped tire mounting ring (19) (see Figure 6 and Figure 7)An inner circumferential stop portion (53) with a chamfered edge is defined within 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 onto the circumferential platform portion or bead seat (54). The bead (22, see Figure 1 ) of the tire (2, see Figure 1 ) is located on the circumferential platform portion or bead seat (54) in a region closer to the outer side relative to the above-mentioned inner circumferential stop portion (53). A circumferential bead bevel portion (55) is arranged on the outer side of the above-mentioned circumferential platform portion or bead seat (54) to assist in positioning the bead on the circumferential platform portion or bead seat (54) when mounting the tire (2, see Figure 1 ) with its bead (22, see Figure 1 ). Finally, a protruding annular lip, flange or projection (21) is circumferentially distributed and provided to prevent the bead (22, see Figure 1 ) of the tire (2, see Figure 1 ) from disengaging from the rim after being mounted.

[0073] The "C"-shaped tire mounting ring (19) defines an annular fixing groove (56, see Figure 6 ) with a chamfered edge on the inner wall (25) near the closed end (20), and this annular fixing groove is designed to be fixed by a fixing tool for easy installation.

[0074] According to Figure 8 , the reinforcing ring (31) includes a plurality of through holes (32) in the radial direction, and fastening means (33, see Figure 1 ) are inserted through these through holes into holes (34, see Figure 2 and Figure 3 ) made in the radial direction in the central region inside the central tubular drum (3, see Figure 2 and Figure 3 ). The reinforcing ring (31) includes a cross-section (57) that allows its diameter to become smaller to facilitate its installation in the central region (48, see Figure 2 and Figure 3 ) inside the central tubular drum (3, see Figure 2 and Figure 3 ).

[0075] According to Figure 9 , the rim center disk mounting ring (35) includes through holes (36) made in the radial direction, and the same fastening means (33, see Figure 1 ) pass through these through holes to be fastened together with the reinforcing ring (31, see Figure 8 ) in holes (34, see Figure 2 andFigure 3 ) in

[0076] According to Figure 9 and Figure 10 , the rim center disk mounting ring (35) is fastened by fastening means (33, see Figure 1 ), which are provided both in the through holes (36) in the said mounting ring (35) and in the through holes (32) in the said reinforcing ring (31); finally, the rim center disk (37) is fastened to the said rim center disk mounting ring (35) by fastening means (38, see Figure 1 ), which are mounted axially in the axial through holes (39) formed near its outer edge and in the axial holes (40) formed in the said rim center disk mounting ring (35); wherein, the said rim center disk (37) includes a central hole (41) and through holes (42) circumferentially distributed around the said central hole (41), for allowing the ends of the mass cylinders and the fixing pins (not shown in the figure) of the rim to pass through respectively.

[0077] According to Figure 11 , the tire anti - disassembly safety drum insert (44) is inserted into the tire before the tire (2, see Figure 1 and Figure 12 ) is mounted on the rim (1), and its end edge (45) presses against the inner area of the bead (22, see Figure 1 and Figure 12 ) of the tire (2, see Figure 1 ), which can prevent the tire from being disassembled towards the inner area of the rim, and, on its circumferential wall, includes a plurality of windows (46) for the inflation air of the tire (2) to circulate, and the tire can be inflated.

[0078] The said tire anti - disassembly safety drum insert (44) includes an annular central area (58), on the inner surface of which a plurality of anti - rotation edges (59) and anti - rotation grooves (60) are provided, and these anti - rotation edges and anti - rotation grooves are axially alternating with each other on the entire circumferential surface and are configured to axially slide in the corresponding anti - rotation edges (7a, see Figure 2 ) and anti - rotation grooves (7b, see Figure 2 ) defined on the circumferential outer surface of the annular stop edge (7) of the said central tubular drum (3), so as to prevent the rotation of the said tire anti - disassembly safety drum insert (44).

[0079] The said tire anti - disassembly safety drum insert (44) includes two annular grooves (61) with chamfered edges at its end edge, and these annular grooves are designed to be fastened by the clamping elements on the machines, mandrels or equipment used for fixing and inserting it into the tire, and help to mount the tire on the rim.

[0080] Figure 12Shows a conventional perspective view of the width-adjustable assemblable rim (1) of the present invention for mounting a tire (2) on a motor vehicle, in a state where the tire is already mounted as shown in the figure.

[0081] The present invention has been described in sufficient detail to enable a person of ordinary skill in the art to reproduce and obtain the results mentioned in the present invention.

Claims

1. An assemblable rim with adjustable width for mounting a tire on a motor vehicle, characterized in that, it comprises: a central tubular drum defining two inner parts and an outer part separated by a central part, the central part defining two annular stop edges spaced apart from each other, wherein each side part includes, on its outer surface and inner surface over its entire circumferential surface, a plurality of anti-rotation edges and anti-rotation grooves alternating with each other in the axial direction; two "C"-shaped inserts, each "C"-shaped insert being constituted by a double-wall tubular body defining an outer wall and an inner wall, the inner surfaces of the outer wall and the inner wall having a plurality of anti-rotation edges and anti-rotation grooves alternating with each other in the axial direction to allow their axial engagement in the inner part and the outer part of the central tubular drum until the limit position of the sealing end of each "C"-shaped insert; and wherein each said insert includes a rib on the outer surface of the outer wall and an external rib on the outer surface of the inner wall; two "C"-shaped tire mounting rings, each "C"-shaped tire mounting ring including a sealing end having a protruding annular lip, flange or projection, the bead of the tire being held at the sealing end to prevent the tire from being disassembled, and each "C"-shaped tire mounting ring including a double wall defining an outer wall having a rib on its inner surface and an inner wall having a rib on its inner surface, through which each "C"-shaped tire mounting ring is screwed into a corresponding "C"-shaped insert; wherein the "C"-shaped tire mounting ring and the "C"-shaped insert include corresponding axial through-holes at the sealing end, the axial through-holes being configured to axially receive fastening means which penetrate into holes axially made in the annular edges at the inner end and the outer end of the central tubular drum to fix the entire assembly; a reinforcing ring having a plurality of radial through-holes, which is installed in holes radially made in the central region inside the central tubular drum by means of fastening means; a rim center disc mounting ring is fixed in holes radially made in the inner surface of the mounting ring by the same fastening means as the reinforcing ring; a rim center disc is installed to the rim center disc mounting ring by means of fastening means which are axially installed in an axial through-hole made near the outer edge of the rim center disc and an axial hole made in the rim center disc mounting ring; wherein the rim center disc includes a central hole and a plurality of through-holes circumferentially distributed around the central hole for the ends of the mass cylinders and the rim fixing pins to pass through respectively; a threaded tire inflation pivot configured to be inserted into a threaded pivot hole axially made at the edge of the central tubular drum, the threaded pivot hole axially extending into its central part and passing through the outer side of the corresponding "C"-shaped insert and the outer side of the corresponding "C"-shaped tire mounting ring; and Tire anti-disassembly safety drum insert, which is inserted into the tire before the tire is mounted on the rim. Once mounted, the end edge of the tire anti-disassembly safety drum insert presses against the inner area of the bead of the tire to prevent the tire from being disassembled towards the inner area of the rim. The tire anti-disassembly safety drum insert includes a plurality of windows in its circumferential wall, allowing the inflation air of the tire to circulate and enabling the tire to be inflated.

2. The width-adjustable and assemblable rim for mounting a tire on a motor vehicle according to claim 1, characterized in that, the "C"-shaped tire mounting ring is interchangeable with other mounting rings that are wider or narrower in width according to the width of the tire to be mounted.

3. The width-adjustable and assemblable rim for mounting a tire on a motor vehicle according to claim 1, characterized in that, the "C"-shaped insert, like the "C"-shaped tire mounting ring, is interchangeable with other inserts that are wider or narrower in width according to the width of the tire to be mounted.

4. The width-adjustable and assemblable rim for mounting a tire on a motor vehicle according to claim 1, characterized in that, the length of the "C"-shaped insert is equal to the length of the "C"-shaped tire mounting ring, and their lengths determine the width of the tire to be mounted on the rim.

5. The width-adjustable and assemblable rim for mounting a tire on a motor vehicle according to claim 1, characterized in that, the tire anti-disassembly safety drum insert includes an annular central region. On the inner surface of the annular central region, there are a plurality of edges and grooves that alternate with each other axially on its entire circumferential surface. The edges and the grooves cooperate with the correspondingly alternating axial edges and grooves on the circumferential outer surface of the central part of the central tubular drum to prevent the rotation of the tire anti-disassembly safety drum insert.

6. The width-adjustable and assemblable rim for mounting a tire on a motor vehicle according to claim 1, characterized in that, the tire anti-disassembly safety drum insert includes two annular grooves at its end edge. The annular grooves are designed to be fastened to the fastening elements of a machine, mandrel or device. The fastening elements are used to fasten it and insert it into the tire, and facilitate the installation of the tire onto the rim.

7. The width-adjustable and assemblable rim for mounting a tire on a motor vehicle according to claim 1, characterized in that, the threaded pivot hole of the central tubular drum is terminated by a reduced portion before reaching one of the annular stop edges of the central part of the central tubular drum. The reduced portion allows air to pass through and prevents the pivot from being further introduced internally. The reduced portion then serves as a blocking wall or stop to accommodate the rubber ring provided between the groove and the pivot.

8. The width-adjustable and assemblable rim for mounting a tire on a motor vehicle according to claim 1, characterized in that, the central part defines two annular stop edges spaced apart from each other, defines two side portions of the central tubular drum, and defines an annular tire mounting groove. The annular tire mounting groove allows the bead of the tire to pass towards its finally assembled end in an angled manner and parallel to the rim surface.

9. The width-adjustable and assemblable rim for mounting a tire on a motor vehicle according to claim 8, characterized in that, the annular tire mounting groove defined in the central part includes an inclined surface in the inner region, the annular tire mounting groove defines two annular stop edges spaced apart from each other, defining two lateral parts of the central tubular drum, and the inclined surface facilitates the mounting of the bead of the tire.

10. The width-adjustable and assemblable rim for mounting a tire on a motor vehicle according to claim 1, characterized in that, the reinforcing ring includes a cross-section that allows its diameter to be reduced to facilitate assembly in the central region within the central tubular drum.

11. The width-adjustable and assemblable rim for mounting a tire on a motor vehicle according to claim 1, characterized in that, the "C"-shaped insert includes an external annular groove provided near the sealing end, and the external annular groove is provided to allow fastening by a tool commonly used for tire assembly to facilitate tire assembly.

12. The width-adjustable and assemblable rim for mounting a tire on a motor vehicle according to claim 1, characterized in that, the "C"-shaped insert includes an annular sealing groove formed on the surface of the sealing end and configured to receive a sealing rubber ring relative to the corresponding "C"-shaped tire mounting ring; to prevent air leakage.

13. The width-adjustable and assemblable rim for mounting a tire on a motor vehicle according to claim 1, characterized in that, the "C"-shaped tire mounting ring defines in the region of the sealing end: an inner circumferential stop portion with a chamfered edge to prevent the bead of the tire from moving inward once installed on the circumferential platform portion or bead seat where the bead of the tire is located, the circumferential platform portion or the bead seat being adjacent to the outer region relative to the inner circumferential stop portion; a circumferential bead inclined surface portion arranged outside the circumferential platform portion or the bead seat, and by promoting the positioning of the bead of the tire in the circumferential platform portion or the bead seat, to assist in the mounting of the bead of the tire; the circumferential bead inclined surface portion is adjacent to a protruding annular lip portion, flange or protrusion to prevent the bead of the tire from disengaging from the rim after installation.

14. The width-adjustable and assemblable 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 fixing groove with a chamfered edge near the sealing end, and the annular fixing groove is designed for fixing by a fastening tool for installation.

Images