Seat body, disc brake disc mounting seat and disc brake hub

Abstract

According to the seat body, the disc brake disc installation seat and the disc brake hub, the seat body is provided with the combination part combined with the fixing piece, so that the seat body can be fixed to a rim made of materials different from that of the seat body through the fixing piece, that is, the seat body and the rim can be made of different materials and can be reliably combined; and the material selection range of the seat body is greatly enlarged. Furthermore, the seat body is further provided with a mounting part for mounting the disc brake disc and a supporting and positioning part for supporting and positioning the disc brake disc, so that the seat body not only can be used for mounting the disc brake disc, but also can play a role in supporting and positioning the disc brake disc, and stress can be better transmitted to a hub when the brake clamps the disc brake disc for braking; and the disc brake disc is not easy to shake axially, so that the problem of abnormal sound can be relieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of wheel hub components, and specifically relates to a seat body, a disc brake disc mounting seat and a disc brake hub. Background Art

[0002] In order to provide users with a better operating feel during braking operations, more and more two-wheeled vehicles such as motorcycles and electric vehicles use inverted disc brake hubs, inverted disc brake discs and corresponding brakes. The inverted disc brake disc is fixed to one side of the disc brake hub, and the brake is used to clamp the inner ring of the inverted disc brake disc to achieve braking. The inverted disc brake disc is also called a full-disc disc brake disc, and its diameter is close to the diameter of the hub. In order to install the inverted disc brake disc, the existing inverted disc brake hub usually includes a screw-on seat arranged on the rim, which cooperates with the corresponding screw to fix the inverted disc brake disc on the mounting seat.

[0003] At present, considering strength and cost, the rim, anti-disc brake disc, and screw-on seat are generally made of iron, and the screw-on seat is directly welded to the rim. Such anti-disc brake hubs have the following main problems: due to the high hardness of iron materials, the processing speed of cutting and punching is very slow, and due to problems such as tool jumping caused by hardness during processing, there are relatively many quality problems in processing, resulting in low production efficiency of the screw-on seat and anti-disc brake hub, especially the screw-on seat is difficult to achieve the ideal dimensional accuracy. In addition, the anti-disc brake disc and screw-on seat of the same hardness will also produce abnormal noise during emergency braking (i.e., the braking force is large), which brings a bad experience to users. Utility Model Content

[0004] The utility model is designed to solve the above problems, and aims to provide a seat body, a disc brake disc mounting seat and a disc brake hub with relatively lower hardness, thereby solving the above processing problems and abnormal noise problems. The utility model adopts the following technical solutions:

[0005] The utility model provides a seat body, which is fixed to the rim of the wheel hub by a fixing piece, and together with the fixing piece constitutes a disc brake disc mounting seat for mounting a disc brake disc. The seat body has the following technical features, which include: a combining fitting portion, which is combined with the fixing piece; a mounting portion, which is used to mount the disc brake disc; and a supporting and positioning portion, which has a positioning end face for supporting and positioning the disc brake disc, wherein the material hardness of the seat body is less than the material hardness of the rim.

[0006] The seat body provided by the utility model may also have such a technical feature, wherein the material hardness of the seat body is also smaller than the material hardness of the disc brake disc.

[0007] The seat body provided by the utility model may also have such technical features, wherein the seat body is columnar as a whole, the combining and fitting portion and the supporting and positioning portion are respectively located at two ends of the seat body, the mounting portion is a mounting hole at least arranged on the supporting and positioning portion, and is used to cooperate with a corresponding fastener to fix the disc brake disc, and one end of the mounting hole is a mounting opening, which is located on the positioning end face.

[0008] The seat body provided by the utility model may also have such technical features, wherein the seat body is in the shape of a missing corner column as a whole, the rim has a bead seat and a rim, and the combining and fitting portion has a matching notch corresponding to the inner shape of the bead seat and the rim.

[0009] The seat body provided by the utility model may also have such a technical feature, wherein the support positioning portion is block-shaped, and the positioning end face is a plane perpendicular to the axial direction of the rim and is located outside the rim in the axial direction of the rim.

[0010] The seat body provided by the utility model may also have such a technical feature, wherein the seat body has a pair of strip grooves, which are respectively located at the two ends of one side of the seat body having the matching notch, and the extension direction of the strip groove is consistent with the length direction of the seat body, and the strip groove is used to expose the corner of one end of the fixing member.

[0011] The seat body provided by the utility model may also have such a technical feature, wherein the combining and matching portion also has a receiving groove connected to the matching notch, which is used to accommodate one end of the fastener, and the other end of the mounting hole is a through opening, and the through opening is connected to the receiving groove.

[0012] The seat body provided by the utility model may also have such a technical feature, wherein the fastener is a threaded rod, and the mounting hole is a threaded countersunk hole matching the threaded rod.

[0013] The utility model provides a disc brake disc mounting seat, which has the following technical features: it comprises: a fixing piece fixed at a predetermined position on the rim; and a seat body combined with the fixing piece and used for mounting, supporting and positioning the disc brake disc, wherein the seat body is the above-mentioned seat body.

[0014] The utility model provides a disc brake hub, which is arranged in a vehicle, and the disc brake hub has the following characteristics: it comprises: a rim; and a plurality of disc brake disc mounting seats, which are respectively arranged on the rim and distributed along the circumference of the rim, and are used for mounting disc brake discs, wherein the disc brake disc mounting seats are the above-mentioned disc brake disc mounting seats.

[0015] The disc brake hub provided by the utility model may also have such a technical feature, wherein the positioning end faces of the multiple disc brake disc mounting seats are located on the same plane, and the plane is perpendicular to the axial direction of the disc brake hub.

[0016] The disc brake hub provided by the utility model may also have such a technical feature, wherein, along the radial direction of the rim, the disc brake disc mounting seat does not exceed the wheel edge of the rim.

[0017] The disc brake hub provided by the utility model may also have such a technical feature, wherein the number of the disc brake disc mounting seats is 3 to 6 and they are evenly distributed along the circumference of the rim.

[0018] The utility model also provides a wheel hub that can be installed with a disc brake (i.e., a disc brake hub), comprising a rim and spokes; the rim has a groove bottom, a tire bead seat and a wheel rim; the spokes are arranged inside the rim and are used to support the rim; the wheel hub has the following technical features: a plurality of mounting seats are arranged on one side of the rim, and the mounting seats can be installed with a disc brake disc; the plurality of mounting seats are arranged along the circumference of the wheel rim of the rim; the mounting seat comprises a connecting piece (i.e., the above-mentioned fixing piece) and a screw-on seat (i.e., the above-mentioned seat body); the connecting piece is welded on the rim; the screw-on seat is covered on the connecting sheet; the screw-on seat and the connecting piece are metal pieces of different materials, the connecting piece and the rim are metal pieces of the same material, and the hardness of the screw-on seat is less than the hardness of the connecting piece; a threaded hole is provided on the screw-on seat, and the threaded hole is used to cooperate with bolts to fix the disc brake disc.

[0019] The wheel hub that can be installed with disc brakes provided by the utility model can also have such technical features, wherein, the connecting piece includes a transverse section and a vertical section, a transition section is provided between the transverse section and the vertical section, or the transverse section and the vertical section are directly connected; the outer end of the transverse section extends toward the rim; the lower end of the vertical section extends toward the outer side of the tire bead seat or the outer side of the groove bottom or the spoke.

[0020] The wheel hub that can be installed with disc brakes provided by the utility model can also have such technical features, wherein the outer end of the transverse section and / or the lower end of the vertical section are welded to the rim; wherein the outer end of the transverse section is welded to the rim; and the lower end of the vertical section is welded to the outer side of the bead seat or the outer side of the groove bottom or the surface of the spoke.

[0021] The wheel hub for mounting disc brakes provided by the utility model may also have such technical features, wherein the transverse section is provided with a filling groove which passes through from top to bottom; the threaded seat fills the filling groove, the threaded hole is vertically arranged and extends into the filling groove; the centerline direction of the threaded hole is the axial direction of the rim.

[0022] The wheel hub that can be installed with disc brakes provided by the utility model can also have such technical features, wherein the connecting piece is a metal sheet with a certain thickness, and a filling groove is opened in the middle of the metal sheet; the middle part of the metal sheet is bent to form a "⅂" shape, and corresponds to the horizontal section and the vertical section; an overhead cavity is provided between the middle part of the connecting piece and the rim, and the screw seat is filled in the overhead cavity.

[0023] The wheel hub for mounting disc brakes provided by the utility model may also have such technical features, wherein an inclined transition section is provided between the transverse section and the vertical section; and the filling groove is distributed on the transverse section and / or the transition section.

[0024] The wheel hub for mounting disc brakes provided by the utility model may also have such technical features, wherein the threaded seat completely covers the middle part of the connecting piece; the outer end of the transverse section and / or the lower end of the vertical section expose the threaded seat.

[0025] The wheel hub that can be installed with disc brakes provided by the utility model can also have such technical features, wherein the connecting piece is a metal sheet with a certain thickness, and the two sides of the long side or the two sides of the wide side of the metal sheet are in contact with the surface of the rim; the two sides of the long side or the two sides of the wide side of the metal sheet are bent and extended directly upward or obliquely upward or toward the middle of the rim to form an insert portion, or a through groove is opened in the middle of the metal sheet, and one side edge of the through groove is bent and extended directly upward or obliquely upward or toward the middle of the rim to form an insert portion; the screw seat is covered on the insert portion.

[0026] The wheel hub that can be installed with disc brakes provided by the utility model can also have such technical features, wherein both sides or one side of the wide side of the metal sheet fits the tire bead seat or the outer side of the bottom groove, and both sides or one side of the wide side of the metal sheet are welded to the tire bead seat or the outer side of the bottom groove as a whole.

[0027] The wheel hub that can be installed with disc brakes provided by the utility model can also have such technical features, wherein the specific structure of the metal sheet is: the metal sheet includes a U-shaped main body, and the bending parts on both sides of the U-shaped main body are welded to the outer side wall of the bead seat of the rim; or, the specific structure of the metal sheet is: the metal sheet includes two vertical side walls and a transverse side wall connecting the two vertical side walls, and a hollow groove is opened on the vertical side wall or the transverse side wall; the two vertical side walls and one transverse side wall form a flat U-shaped body, and the opening of the U-shaped body faces the side wall of the rim; the screw seat covers the transverse side wall; the two vertical side walls abut against the outer side surface of the bead seat of the rim; the parts where the two vertical side walls abut against the rim are exposed from the screw seat, and the ends of the two vertical side walls are welded to the outer side wall of the bead seat of the rim; or, the specific structure of the metal sheet is: the metal sheet includes L The main body of the wheel rim comprises a short side portion arranged horizontally and a long side portion arranged vertically; the screw connection seat covers the long side portion, and a hollow groove or an arrow portion is arranged on the long side portion; the outer end of the short side portion is exposed from the screw connection seat and abuts against the rim, and the outer end of the short side portion is welded to the outer surface of the rim.

[0028] Function and effect of utility model

[0029] According to the seat body, disc brake disc mounting seat and disc brake hub of the utility model, the seat body has a coupling and matching portion combined with the fixing member, so the seat body can be fixed on the rim of a different material from the seat body through the fixing member, that is, the seat body and the rim can be made of different materials and the two can be reliably combined, so the range of material selection for the seat body is greatly increased, and the seat body can be made of materials that are easy to process or have specific properties as needed, so that the seat body processing efficiency is higher and / or has better quality. Furthermore, the seat body also has a mounting portion for mounting the disc brake disc and a supporting and positioning portion for supporting and positioning the disc brake disc, so the seat body can not only be used to mount the disc brake disc, but also can support and position the disc brake disc, so that when the brake clamps the disc brake disc for braking, the stress can be better transmitted to the wheel hub, and the disc brake disc is less likely to produce axial shaking, which is conducive to alleviating the above-mentioned abnormal noise problem. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a three-dimensional diagram of the disc brake hub and the disc brake disc in the first embodiment of the utility model;

[0031] Figure 2 This is a structural exploded view of the disc brake hub and the disc brake disc in the first embodiment of the utility model;

[0032] Figure 3 is a cross-sectional view of the disc brake hub in the first embodiment of the utility model;

[0033] Figure 4 It is a three-dimensional diagram of the disc brake disc mounting seat in the first embodiment of the utility model;

[0034] Figure 5 It is a three-dimensional diagram of the disc brake disc mounting seat at different angles in the first embodiment of the utility model;

[0035] Figure 6 It is a cross-sectional view of the disc brake mounting seat in the first embodiment of the utility model;

[0036] Figure 7 It is a three-dimensional diagram of the fixing member in the first embodiment of the utility model;

[0037] Figure 8 yes Figure 3 A magnified view of the part inside the middle circle A;

[0038] Fig. 9 It is a three-dimensional diagram of the disc brake mounting seat in the first modification of the utility model;

[0039] Fig.10 It is a three-dimensional diagram of the disc brake mounting seat in the second modification of the utility model;

[0040] Fig.11 It is a cross-sectional view of the disc brake mounting seat in the second embodiment of the utility model;

[0041] Fig.12 It is a three-dimensional diagram of the fixing member in the second embodiment of the utility model;

[0042] Fig.13 It is a three-dimensional diagram of the fixing member and the rim in the third embodiment of the utility model;

[0043] Fig.14 It is a three-dimensional diagram of the disc brake disc mounting seat and the wheel rim in the fourth embodiment of the utility model;

[0044] Fig.15 It is a three-dimensional diagram of the fixing member and the rim in the fourth embodiment of the utility model;

[0045] Fig.16 It is a three-dimensional diagram of the fixing member in the fifth embodiment of the utility model;

[0046] Fig.17 It is a three-dimensional diagram of the disc brake disc mounting seat in the sixth embodiment of the utility model;

[0047] Fig.18 It is a cross-sectional view of the disc brake mounting seat in the sixth embodiment of the present utility model.

[0048] Reference numerals:

[0049] Disc brake hub 100; rim 10; groove bottom 11; bead seat 12; wheel rim 13; disc brake disc mounting seat 20; seat body 21; support positioning portion 211; positioning end surface 2111; combination matching portion 212; matching notch 2121; matching surface 21211; accommodating groove 2122; mounting hole 213; mounting opening 213a; through opening 213b; first hole portion 2131; second hole portion 2132; third hole portion 2133; fixing member 22; combination portion 221; first sheet portion 2211; second sheet portion 2212; connecting portion 2213; middle hole 2214; hollow portion 2214a; combination hole 2214b; combination notch 2215; end combination hole 2216; clearance notch 221 7; fixing portion 222; rim fixing portion 222a; groove bottom fixing portion 222b; bead seat fixing portion 222c; first sheet member 223; first coupling portion 2231; first clearance notch 22311; first coupling notch 22312; first fixing portion 2232; second sheet member 224; middle coupling notch 22411; second coupling notch 22412; second fixing portion 2242; bending portion 225; spoke 30; spoke plate portion 31; spoke 32; spoke end portion 321; rim welding portion 41; groove bottom welding portion 42; bead seat welding portion 43; disc brake disc 200; friction hole 201; fixing hole 202; fastening rod 300; fastening rod cap portion 301; fastening rod transition portion 302; screw portion 303. DETAILED DESCRIPTION

[0050] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the seat body, disc brake disc mounting seat and disc brake hub of the present invention are specifically described below in combination with embodiments and drawings.

[0051] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0052] <Example 1>

[0053] Figure 1 is a three-dimensional diagram of the disc brake hub in this embodiment, Figure 2 is a structural exploded view of the disc brake hub in this embodiment, Figure 3 It is a cross-sectional view of the disc brake hub in this embodiment.

[0054] like Figures 1 to 3 As shown, this embodiment provides a disc brake hub 100 (a hub that can be installed with a disc brake), one side of which is installed with a disc brake disc 200. The structure of the disc brake hub 100 is designed based on the structure and installation requirements of the disc brake disc 200, so the structure of the disc brake disc 200 will be briefly described below.

[0055] The disc brake disc 200 is a full-disc disc brake disc, also called a reverse disc brake disc, and its outer diameter is close to the diameter of the disc brake hub 100. The disc brake disc 200 is generally in the shape of a circular ring plate, with a circular inner edge and a gear-shaped outer edge. The disc brake disc 200 is provided with a plurality of friction holes 201 and a plurality of fixing holes 202. The plurality of friction holes 201 are all circular through holes with a relatively small aperture, and are evenly distributed on the edge of the inner ring of the disc brake disc 200; the plurality of fixing holes 202 are countersunk holes, and are evenly distributed circumferentially on the edge of the outer ring of the disc brake disc 200. In this embodiment, there are a total of six fixing holes 202.

[0056] The structure of the disc brake hub 100 of this embodiment will be described in detail below in conjunction with the structure of the disc brake disc 200 described above.

[0057] The disc brake hub 100 includes a rim 10 , a plurality of disc brake rotor mounting seats 20 , and spokes 30 .

[0058] The rim 10 includes a groove bottom 11, a bead seat 12 and a wheel flange 13. Along the circumference of the rim 10, the cross-section of the groove bottom 11 is roughly in the shape of a trapezoidal groove, which is convenient for disassembling and installing the tire. Two bead seats 12 are respectively formed on both sides of the groove bottom 11, and a bend is formed between the bead seat 12 and the groove bottom 11. The bead seat 12 is used to support the tire in the radial direction. Two wheel flanges 13 are respectively formed on both sides of the two bead seats 12, and a bend is formed between the wheel flange 13 and the corresponding bead seat 12. The two wheel flanges 13 are respectively used to clamp on both sides of the tire rim to support the tire and maintain the axial direction of the tire. The specific structure of the rim 10 is the existing technology and is not described in detail.

[0059] A plurality of disc brake disc mounting seats 20 are respectively arranged on the rim 10, located on the same side of the rim 10 in the axial direction (i.e., one side of the rim 10), and evenly distributed along the circumference of the rim 13 of the rim 10, for mounting the disc brake disc 200. In this embodiment, corresponding to the number of fixing holes on the disc brake disc 200, there are also six disc brake disc mounting seats 20 in total.

[0060] Figure 4 is a three-dimensional diagram of the disc brake mounting seat in this embodiment, Figure 5 1 is a three-dimensional diagram of the disc brake mounting seat at different angles in this embodiment. Figure 6 It is a cross-sectional view of the disc brake mounting seat in this embodiment.

[0061] like Figures 4 to 6As shown, the disc brake disc mounting seat 20 includes a seat body 21 (screw seat) and a fixing member 22 (connecting member), a part of the fixing member 22 is combined in the seat body 21, that is, the seat body 21 is covered on the fixing member 22. The seat body 21 and the fixing member 22 are metal parts of different materials, and the fixing member 22 and the rim 10 are metal parts of the same material. The seat body 21 is covered on the fixing member 22, so that the two metals of different materials are tightly combined.

[0062] The seat body 21 is an integrally formed part, and is generally in the shape of a column with missing corners. The seat body 21 can be divided into a supporting and positioning portion 211 and a coupling and matching portion 212 along its length direction. The seat body 21 also has a mounting hole 213 for fixing the disc brake disc 200.

[0063] The support and positioning portion 211 is generally in the shape of a rectangular block, and the outer contour of the cross section along the length direction of the seat body 21 is a rectangular shape with rounded corners. The outer end of the support and positioning portion 211 has a positioning end surface 2111 for supporting and positioning the edge of the disc brake disc 200. The positioning end surface 2111 is a plane that is perpendicular to the length direction of the seat body 21.

[0064] The coupling part 212 is in the shape of a special-shaped block, extending from one end of the supporting and positioning part 211. Along the thickness direction of the seat body 21, the cross-sectional shape of one side of the coupling part 212 is consistent with the supporting and positioning part 211, and the other side has a matching notch 2121 and a receiving groove 2122. The matching notch 2121 has a matching surface 21211 facing the inner side of the rim 10, and the matching surface 21211 is roughly a bent U-shaped surface. The bending shape of the matching surface 21211 matches the shape of the inner side of the wheel flange 13 and the bead seat 12 of the rim 10. The receiving groove 2122 is a strip groove extending along the length direction of the seat body 21, and its notch is connected with the coupling notch 2121.

[0065] In this embodiment, compared with the inner side shapes of the bead seat 12 and the rim 13 of the rim 10, the surface shape of the matching notch 2121 is gentler, and the corresponding curvatures of various parts on the surface are relatively smaller. When the disc brake mounting seat 20 is set on the rim 10, a certain gap is left between the surface of the matching notch 2121 and the inner side surfaces of the bead seat 12 and the rim 13.

[0066] The mounting hole 213 (threaded hole) is used to cooperate with the corresponding fastening rod to fix the edge of the disc brake disc 200 on the seat body 21. The mounting hole 213 is a threaded countersunk hole that penetrates along the length direction of the seat body 21. One end of the mounting hole 213 is a mounting opening 2131 located at the positioning end surface 2111, and the other end of the mounting hole 213 is a through opening 2132 located on one side of the extending direction of the receiving groove 2122 and connected to the receiving groove 2122. The groove width of the receiving groove 2122 is greater than the diameter of the tail of the threaded rod.

[0067] Along the axial direction of the mounting hole 213, the mounting hole 213 includes a first hole portion 2131, a second hole portion 2132 and a third hole portion 2133 which are connected in sequence. Among them, the first hole portion 2131 is a tapered hole with a very shallow depth, and the end with a relatively larger aperture is the mounting opening 2131. The second hole portion 2132 is a circular hole, and its aperture is substantially consistent with the aperture of the end with a smaller aperture of the first hole portion 2131, and its depth is greater than the depth of the first hole portion 2132. The third hole portion 2133 is a threaded circular hole, and its inner surface has threads. The depth of the third hole portion 2133 is much greater than that of the second hole portion 2132, and one end of the third hole portion 2133 is a through opening 2132.

[0068] The fastening rod 300 matching the mounting hole is a screw, through which the disc brake disc 200 is tightened on the disc brake disc mounting seat 20 . The fastening rod 300 includes a fastener head 310 and a screw rod portion 320 that are coaxially arranged.

[0069] The fastener head 310 includes a cap portion 311, a transition portion 312, and a tightening hole 313. The cap portion 311 is roughly in the shape of a circular plate with chamfers. The transition portion 312 extends from the middle of a side surface of the cap portion 311 that does not have chamfers. The transition portion 312 is cylindrical and has a diameter smaller than the diameter of the cap portion 311. The tightening hole 313 is provided on the cap portion 311 and part of the transition portion 312. The tightening hole 313 is a hexagonal hole. In this embodiment, the outer diameter of the cap portion 311 is slightly smaller than the upper end diameter of the fixing hole 202 on the disc brake disc 200. The outer diameter of the transition portion 312 is slightly smaller than the lower end diameter of the fixing hole 202 on the disc brake disc 200 and is also slightly smaller than the diameter of the second hole portion 2132 of the mounting hole 213. The overall length of the transition portion 312 is equal to or slightly smaller than the sum of the lengths of the hole portion at the lower end of the fixing hole 202, the first hole portion 2131 and the second hole portion 2132.

[0070] The screw portion 320 is a round rod with threads on the outer surface, and the threads match the threads of the third hole portion 2133 of the mounting hole 2133. In this embodiment, the overall length of the screw portion 320 is greater than the length of the third hole portion 2133. In an alternative solution, the overall length of the screw portion 320 may also be equal to or slightly less than the length of the third hole portion 2133.

[0071] Figure 7 2 is a three-dimensional diagram of the fixing member in this embodiment.

[0072] like Figure 7 As shown, the fixing member 22 is formed integrally from a bent sheet (metal sheet) of a certain thickness, and viewed from the side, it is in the shape of a chamfered L. The fixing member 22 includes a coupling portion 221 and two fixing portions 222 .

[0073] The coupling part 221 is used to couple with the seat body 21. The coupling part 221 is located in the middle of the entire fixing member 22. The coupling part 221 is roughly in the shape of a bent square frame. When viewed from the side, the coupling part 221 is also in the shape of a chamfered L. The coupling part 221 can be regarded as consisting of a first sheet-like part 2211 in a U shape (a transverse section in the bending direction), a second sheet-like part 2212 in a U shape (a vertical section in the bending direction), and two roughly T-shaped connecting parts 2213 (transition sections) connected before the two sheet-like parts, wherein the two ends of the connecting part 2213 are respectively connected to the corresponding ends (U-shaped ends) of the first sheet-like part 2211 and the second sheet-like part 2212, and the length direction of the connecting part 2213 is inclined relative to the surface direction of the first sheet-like part 2211 and the surface direction of the second sheet-like part 2212, and the surface direction of the first sheet-like part 2211 and the surface direction of the second sheet-like part 2212 are roughly perpendicular. In addition, the second sheet portion 2212 has a relatively small curvature as a whole, which is substantially consistent with the curvature of the inner side of the bead seat 12. Since the size of the fixing member 22 is relatively small relative to the overall size of the rim 10, the curvature is very small, and the second sheet portion 2212 can also be in a straight sheet shape.

[0074] The middle of the joint 221 has a large through-hole 2214, the shape of which corresponds to the overall shape of the joint 221, and the four corners of the middle hole 2214 are all rounded. There are a plurality of joint notches 2215 on both sides of the bending direction of the joint 221. In this embodiment, the joint notches 2215 are rectangular notches with rounded corners, and there are four joint notches 2215 in total. There are two joint notches 2215 on each side of the joint 221, and the notches on both sides are symmetrically distributed, and the opening direction of the joint notches 2215 is perpendicular to the bending direction of the fixing member 22. The width of the joint notch 2215 is greater than its depth, and the corners of the joint notch 2215 are all rounded. The rounded setting prevents the corresponding position inside the seat body 21 from forming a sharp angle shape that is easily damaged when subjected to force, thereby making the joint strength between the seat body 21 and the fixing member 22 higher.

[0075] The two fixing portions 222 are respectively formed at the two ends of the bending direction of the connecting portion 221 (i.e., the two ends of the L shape). The fixing portion 222 is in the shape of a rectangular sheet, extending from one end of the connecting portion 221, and the length direction of the fixing portion 222 is perpendicular to the bending direction of the connecting portion 221. The length of the fixing portion 222 is the same as the width of the one end of the connecting portion 221, and the surface direction of the fixing portion 222 is consistent with the surface direction of the one end of the connecting portion 221. In addition, the outer end of the fixing portion 222 is rounded.

[0076] One of the fixing portions 222 has a relatively narrow width, and the fixing portion 222 serves as the wheel rim fixing portion 222a; the other fixing portion 222 has a relatively wide width, and the fixing portion 222 serves as the groove bottom fixing portion 222b. In addition, the outer end of the wheel rim fixing portion 222a has a relatively small curvature, which is substantially consistent with the curvature of the circumference of the wheel rim 13. Similarly, the curvature is very small, and the outer end of the wheel rim fixing portion 222a can also be straight.

[0077] The hole portion of the middle hole 2214 close to the wheel rim fixing portion 222a is used as a hollow portion 2214a (hollow and open filling groove), and the hole portion of the middle hole 2214 close to the groove bottom fixing portion 222b is used as a combination hole 2214b. The boundary line between the hollow portion 2214a and the combination hole 2214b is roughly located in the middle of the middle hole 2214 in the bending direction of the fixing member 22, that is, the filling groove is distributed on the transverse section and / or the transition section.

[0078] In an alternative solution, the fixing member 22 may also be in an overall L-shape with rounded corners, that is, a curved sheet-like member.

[0079] In this embodiment, the fixing member 22 can be welded to the rim, so the seat body 21 can be made of a material different from that of the rim.

[0080] When arranged on the rim 10, a hollow cavity is formed between the middle of the fixing member 22 and the rim 10, and the seat body 21 is filled into the hollow cavity. The hollow cavity ensures that there is sufficient bonding space between the fixing member 22 and the seat body 21, thereby ensuring bonding strength.

[0081] like Figure 5 As shown, the seat body 21 completely wraps the connecting portion 221 of the fixing member 22, and the seat body 21 has a portion formed integrally in the connecting hole 2214b and multiple connecting notches 2215 of the connecting portion 221, that is, in addition to the mounting hole 213, the seat body 21 also has multiple holes and grooves matching the outer shape of the connecting portion 221, and these holes and grooves are not connected to the mounting hole 213. Therefore, the seat body 21 as a whole forms a relatively complex wrapping and catching structure for the connecting portion 221, so that the connection between the seat body 21 and the connecting portion 221 is very firm. Multiple fixing portions 222 are located outside the seat body 21, wherein the rim fixing portion 222a is located outside the side of the connecting matching portion 212 of the seat body 21 close to the supporting positioning portion 211, and is located on the side of the connecting matching portion 212 having the matching notch 2121, and the surface direction of the rim fixing portion 222a is perpendicular to the length direction of the seat body 21. The groove bottom fixing portion 222b is located outside the outer end of the engaging portion 212 of the seat body 21, and the surface direction of the groove bottom fixing portion 222b is perpendicular to the thickness direction of the seat body 21. The plurality of fixing portions 222 are used to be fixed to corresponding predetermined positions on the rim 10 respectively.

[0082] In addition, in the length direction of the seat body 21, the mounting hole 213 passes through the hollow portion 2214a of the fixing member 22. That is, by providing the hollow portion 2214a, the structure of the fixing member 22 avoids the position (punching position) of the mounting hole 213 on the seat body 21, and the structure of the fixing member 22 forms a structure that surrounds the lower part of the mounting hole 213 on three sides.

[0083] Figure 8 yes Figure 3 Enlarged view of the part within the middle circle A.

[0084] like Figure 8 As shown, when set on the rim 10, the rim fixing portion 222a is used to be welded on the rim 13 of the rim 10 as the above-mentioned predetermined position, and the groove bottom fixing portion 222b is used to be welded on one side of the groove bottom 11 of the rim 10 as the above-mentioned predetermined position.

[0085] Specifically, the surface direction of the rim fixing portion 222a and a side surface facing the mating notch 2121 are in contact with the outer end portion of the rim 13 in the axial direction of the rim 10, and welding is performed between the outer end surface of the rim fixing portion 222a and the outer end portion of the rim 13 to form a strip-shaped rim welding portion 41.

[0086] The surface direction of the groove bottom fixing portion 222b is perpendicular to the radial direction of the rim 10, so the outer end face of the groove bottom fixing portion 222b is perpendicular to the axial direction of the rim 10, and the inner side surface of the groove bottom 11 is inclined relative to the outer end face of the groove bottom fixing portion 222b, so one side of the outer end face of the groove bottom fixing portion 222b is in contact with an inner side surface of the groove bottom 11, and a gap is formed between the other side of the outer end face of the groove bottom fixing portion 222b and the inner side surface of the groove bottom 11, and the outer end face of the groove bottom fixing portion 222b and the inner side surface of the groove bottom 11 are welded by utilizing the gap to form a strip-shaped groove bottom welding portion 42.

[0087] That is, the disc brake hub 100 further includes a rim welding portion 41 (welding point one) and a groove bottom welding portion 42 (welding point two).

[0088] The length direction of the seat body 21 is consistent with the axial direction of the rim 10, and the thickness direction of the seat body 21 is consistent with the radial direction of the rim 10. The positioning end face 2111 of the seat body 21 is perpendicular to the axial direction of the rim 10. In the axial direction of the rim 10, the support and positioning portion 211 of the seat body 21 is located outside the rim 10, so the positioning end face 2111 is also located outside the rim 10, so it can be used to install a disc brake disc 200 with an outer diameter close to the diameter of the rim 10. In the radial direction of the rim 10, the seat body 21 does not exceed the outermost end of the rim 10, so it will not affect the installation of the tire.

[0089] The lower end of the cap portion 311 of the fastener 300 is accommodated in the upper portion of the fixing hole 202 (counterbore) of the disc brake disc 200, the transition portion 312 is accommodated in the lower portion of the fixing hole 202 and the first hole portion 2131 and the second hole portion 2132 of the mounting hole 213, the screw portion 320 passes through the third hole portion 2133, and the outer end portion of the screw portion 320 is accommodated in the accommodating groove 2122 of the seat body 21.

[0090] The spoke 30 is fixed to the inner ring of the rim 10 and is used to support the rim 10. The spoke 30 includes a spoke plate portion 31 in the middle and a plurality of spokes 32 extending outward from the spoke plate portion 31. The outer end of each spoke 32 is fixed to the inner side of the groove bottom 11 of the rim 10 to support the rim 10, thereby forming an integral hub. The specific structure of the spoke 30 is prior art and will not be described in detail.

[0091] As described above, in this embodiment, six disc brake disc mounting seats 20 are arranged on the rim 10 of the disc brake hub 100, and the positioning end faces 2111 of the six disc brake disc mounting seats 20 are substantially on the same plane, and the plane is perpendicular to the axial direction of the disc brake hub 100. Therefore, after the disc brake disc 200 is mounted on the six disc brake disc mounting seats 20 through the six fastening rods 300, the disc brake disc 200 is located outside one side of the disc brake hub 100 in the axial direction, and the surface direction of the disc brake disc 200 is also perpendicular to the axial direction of the disc brake hub 100. When the corresponding brake clamps the inner ring of the disc brake disc 200 to brake, the disc brake disc 200 is subjected to friction and applies a force opposite to its rotation direction to the rim 10 through the fastening rod 300 and the disc brake disc mounting seat 20. Since the surface direction of the disc brake disc 200 is also perpendicular to the axial direction of the disc brake hub 100, the direction of the corresponding stress on the fastening rod 300 can be kept basically perpendicular to the axial direction of the fastening rod 300.

[0092] Functions and Effects of Embodiment 1

[0093] According to the seat body, disc brake disc mounting seat and disc brake hub provided in this embodiment, the seat body has a coupling portion coupled with a fixing member, so the seat body can be fixed on a rim of a different material from the seat body through the fixing member, that is, the seat body and the rim can be made of different materials and the two can be reliably coupled, and because the material hardness of the seat body is less than the material hardness of the rim, the seat body is easier to process, and it is less likely to have a tool jump problem during cutting and other processing, and it is also easier to manufacture a seat body with better quality. Furthermore, the seat body also has a mounting portion for mounting a disc brake disc and a supporting and positioning portion for supporting and positioning the disc brake disc, so the seat body can not only be used to mount the disc brake disc, but also can support and position the disc brake disc, so that when the brake clamps the disc brake disc for braking, the stress can be better transmitted to the wheel hub, and the disc brake disc is less likely to produce axial shaking, which is conducive to alleviating the above-mentioned abnormal noise problem.

[0094] Furthermore, the fixing piece also has a combination hole and a plurality of combination notches, so the base can form a more complex wrapping structure for the fixing piece, so that the combination strength between the two is higher and can withstand higher stress. In addition, the corners of the combination hole and the combination notch are rounded, which can avoid the formation of sharp and easily damaged corners inside the base, making the base more reliable.

[0095] Furthermore, one end of the seat body has a matching notch corresponding to the inner side of the rim, so that the supporting positioning portion on the upper part of the seat body can be closer to the radial outer ring of the rim through the matching notch, so that multiple disc brake disc mounting seats can be used to install disc brake discs with larger outer diameters.

[0096] Furthermore, the seat body also has a receiving groove connected to the matching notch, and the mounting hole on the seat body is a through hole with one end connected to the receiving groove. Therefore, there is no need to strictly control the punching depth when punching the mounting hole, and the processing of the mounting hole is more convenient and more efficient.

[0097] Furthermore, the seat body has a flat positioning end surface, and the positioning end surfaces of multiple disc brake disc mounting seats in the disc brake hub are roughly located on the same plane perpendicular to the axial direction of the hub. Therefore, the disc brake disc can be installed on the outside of one side of the disc brake hub and play a good positioning role for the disc brake disc, which can further avoid the above-mentioned abnormal noise problem, and can make the stress direction on the fastening rod roughly remain perpendicular to the axial direction of the fastening rod during braking, and can also avoid the problem of loosening of the fastening rod due to changes in the force direction, so that the reliability of disc brake disc installation is higher.

[0098] Furthermore, according to the structure of the fixing member in the embodiment, for each disc brake mount, only two straight or nearly straight welding operations need to be performed at the rim and the groove bottom of the rim, which makes the processing very convenient and efficient while ensuring the structural strength.

[0099] Furthermore, the fixing piece has a hollow portion, and the mounting hole on the seat body passes through the hollow portion on the fixing piece, so when punching the seat body, the fixing piece will not be touched at all, and the structural strength of the disc brake disc mounting seat will not be affected by the punching. In addition, when installing the fastening rod, the hollow portion can also accommodate the lower part of the fastening rod without hindering the installation of the fastening rod, so the axial length of the mounting hole can be set longer, and a longer fastening rod can also be used, thereby further improving the firmness of the disc brake disc installation.

[0100] Furthermore, the fixing piece is a single bent sheet-like piece, and its hollow portion and the combining hole are two parts of the same central hole, so that the fixing piece is easier to process and manufacture.

[0101] <Modification 1>

[0102] This variation provides a seat body, a disc brake disc mounting seat and a disc brake hub. In this embodiment, the same symbols are given to the same components as those in the first embodiment and the corresponding descriptions are omitted.

[0103] Compared with the first embodiment, the difference is that the structure of the seat body of this variation is different.

[0104] Fig. 9 It is a perspective view of the disc brake disc mounting seat in this modified example.

[0105] like Fig. 9 As shown, in the disc brake mounting seat 20 of this embodiment, the seat body 21 is a cylindrical shape with a missing corner, the support and positioning portion 211 is a cylindrical shape, and the outer contour of the positioning end face 2111 is a circle. Similarly, in the radial direction of the rim 10, the seat body 21 does not exceed the outer end of the rim 10.

[0106] In this variation, other structures are the same as those in the first embodiment, and thus will not be described again.

[0107] <Modification 2>

[0108] This variation provides a seat body, a disc brake disc mounting seat and a disc brake hub. In this embodiment, the same symbols are given to the same components as those in the first embodiment and the corresponding descriptions are omitted.

[0109] Compared with the first embodiment, the difference is that the structure of the seat body of this variation is different.

[0110] Fig.10 It is a perspective view of the disc brake disc mounting seat in this modified example.

[0111] like Fig.10 As shown, in the disc brake mounting seat 20 of this embodiment, the seat body 21 is in the shape of a missing corner column as a whole, and the side of the supporting and positioning portion 211 close to the matching notch 2121 is in the shape of a rectangular parallelepiped column with rounded corners, and the other side is in the shape of a semi-cylinder. The matching portion 212 has a matching notch 2121 on one side, and the other side is also in the shape of a semi-cylinder. Similarly, in the radial direction of the rim 10, the seat body 21 does not exceed the outer end of the rim 10.

[0112] In this variation, other structures are the same as those in the first embodiment, and thus will not be described again.

[0113] <Example 2>

[0114] This embodiment provides a seat body, a disc brake disc mounting seat and a disc brake hub. In this embodiment, the same symbols are given to the same components as those in the first embodiment and the corresponding descriptions are omitted.

[0115] Compared with the first embodiment, the difference lies in that the structure of the disc brake mounting seat 20 of this embodiment is different.

[0116] Fig.11 is a cross-sectional view of the disc brake mounting seat in this embodiment, Fig.12 2 is a three-dimensional diagram of the fixing member in this embodiment.

[0117] like Fig.11 and Fig.12 As shown, in the disc brake mounting seat 20 of this embodiment, the fixing member 22 is a split fixing member, and accordingly, the structure of the seat body 21 combined with the fixing member 22 is also different from that of the first embodiment.

[0118] Specifically, the fixing member 22 of this embodiment includes a first sheet member 223 and a second sheet member 224 which are separated from each other by processing of a first sheet material and a second sheet material. The plane directions of the first sheet member 223 and the second sheet member 224 are substantially perpendicular to each other, and the first sheet member 223 and the first sheet member 224 are arranged to form an L shape.

[0119] The first sheet member 223 is in a U-shaped sheet shape and includes a first combining portion 2231 and a first fixing portion 2232 .

[0120] The first joint part 2231 is also in the shape of a U-shaped sheet, and has a first clearance notch 22311 and two first joint notches 22312. The first clearance notch 22311 is located at one end of the length direction of the first sheet 223 and in the middle of the width direction. It is relatively large in size, and its depth and width are slightly smaller than the length and width of the first joint part 2231, respectively. Its opening direction is consistent with the length direction of the first sheet 223. The two first joint notches 22312 are relatively small in size and are symmetrically arranged on both sides of the width direction of the first joint part 2231. Their opening direction is consistent with the width direction of the first sheet 223. The corners of the first clearance notch 22311 and the first joint notch 22312 are both rounded. The two ends of the first joint part 2231 are roughly in the shape of a rectangular sheet with rounded corners.

[0121] The first coupling portion 2231 is wrapped inside the coupling matching portion 212 of the seat body 21 and is located near the supporting positioning portion 211, and the surface direction of the first coupling portion 2231 is perpendicular to the length direction of the seat body 21. The mounting hole 213 on the seat body 21 passes through the first clearance notch 22311 on the first coupling portion 2231, and the depth of the first clearance notch 22311 is greater than the aperture of the mounting hole 213.

[0122] The first fixing portion 2232 extends from one end of the U-shaped bottom of the first combining portion 2231, and the length direction of the first fixing portion 2232 is consistent with the U-shaped opening direction of the first combining portion 2231, and the length of the first fixing portion 2232 is the same as the width of the one end of the first combining portion 2231. The first fixing portion 2232 is used as a wheel rim fixing portion 222a, and its structure is the same as that of the wheel rim fixing portion 222a in the first embodiment.

[0123] The second sheet member 224 is also in a U-shaped sheet shape, and includes a second combining portion 2241 and a second fixing portion 2242 .

[0124] The second combining portion 2241 is also in the shape of a U-shaped sheet, and has a middle combining notch 22411 and two second combining notches 22412. The middle combining notch 22411 is used as the hollowing portion described in the first embodiment. The middle combining notch 22411 is located at one end in the length direction and the middle in the width direction of the second sheet 224. It is relatively large in size, and its depth and width are slightly smaller than the length and width of the second combining portion 2241, respectively. Its opening direction is consistent with the length direction of the second sheet 224. The two second combining notches 22412 are relatively small in size and are symmetrically arranged on both sides in the width direction of the second combining portion 2241. Their opening direction is consistent with the width direction of the second sheet 224. The corners of the middle combining notch 22411 and the second combining notch 22412 are both rounded. The two ends of the second combining portion 2241 are roughly in the shape of a rectangular sheet with rounded corners.

[0125] The second combining portion 2241 is wrapped inside the combining matching portion 212 of the base 21 and is located beside the matching notch 2121 . The surface direction of the second combining portion 2241 is perpendicular to the thickness direction of the base 21 .

[0126] The second fixing portion 2242 extends from one end of the U-shaped bottom of the second combining portion 2241, and the length direction of the second fixing portion 2242 is consistent with the U-shaped opening direction of the second combining portion 2241, and the length of the second fixing portion 2242 is the same as the width of the one end of the second combining portion 2241. The second fixing portion 2242 is used as a groove bottom fixing portion 222b, and its structure is the same as that of the groove bottom fixing portion 222b in the first embodiment, that is, its width is greater than the width of the first fixing portion 2232.

[0127] That is, the overall structures of the first sheet member 223 and the second sheet member 224 are very similar, but the functions of the first clearance notch 22311 and the middle joining notch 22411 thereon are different. In addition, the structures of the first sheet member 223 and the second sheet member 224 are also very similar to the structures of the two ends of the fixing member 22 in the bending direction in the first embodiment.

[0128] In addition, the second sheet-like member 224 has a relatively small curvature as a whole, which is substantially consistent with the curvature of the inner side of the bead seat 12. Similarly, the second sheet-like member 224 may not have the curvature and may be in the form of a straight sheet.

[0129] like Fig.11 As shown, the seat body 21 completely wraps the first joint part 2231 and the second joint part 2232 of the fixing member, so the structure of the holes and grooves corresponding to the shapes of the two joint parts inside the seat body 21 is different from that in the first embodiment. In the first embodiment, corresponding to the shapes of the two sides of the bending direction of the joint part 221, two long through holes are formed inside the seat body 21, while according to the shape of the fixing member 22 of this embodiment, there will be no particularly long through holes inside the seat body 21.

[0130] The mounting hole 213 on the base 21 passes through the first clearance notch 22311 on the first sheet 223 of the fixing member 22, and the first sheet 223 surrounds the lower part of the mounting hole 213 on three sides. The second sheet 224 is located at the side of the mounting hole 213 and does not contact or interfere with the mounting hole 213.

[0131] In addition, the seat body 21 of this embodiment may also adopt the shape of the first or second modification.

[0132] In this embodiment, other structures are the same as those in the first embodiment, and thus will not be described again.

[0133] Functions and Effects of Embodiment 2

[0134] According to the seat body, disc brake disc mounting seat and disc brake hub provided in this embodiment, on the basis of the functions and effects of the first embodiment, since the overall L-shaped fixing member is composed of two separated sheet members, there is no need to bend the fixing member as a whole, but only needs to process the two sheets into two relatively straight sheet members respectively, which makes the processing more convenient and quick.

[0135] Furthermore, the overall shapes of the first sheet member and the second sheet member are very similar, and the first clearance notch and the middle combining notch with basically the same shape are used to achieve different functions. Through such a clever design, the difficulty of processing can be further reduced and the production efficiency can be improved while meeting the functional requirements.

[0136] Furthermore, according to the shape of the fixing member of this embodiment, no long through hole will be formed inside the seat body, which can further improve the reliability of the seat body.

[0137] Moreover, since the first sheet-like member and the second sheet-like member are two independent components, the distance between them can be adjusted as needed, so that the fixing member can be used in combination with rim wheels and / or seat bodies of different sizes. That is, the same fixing member can be used when manufacturing disc brake hubs of multiple different models. Therefore, the fixing member has a wider scope of application, is more convenient to operate during production changeovers, and has higher production efficiency.

[0138] <Example III>

[0139] This embodiment provides a seat body, a disc brake disc mounting seat, and a disc brake hub. In this embodiment, the same reference numerals are given to the same constituent elements as in Embodiment 1, and the corresponding descriptions are omitted.

[0140] Compared with Embodiment 1, the difference lies in that the structure of the disc brake disc mounting seat 20 in this modification is different. The structure of the metal sheet is as follows: The metal sheet includes two vertical side walls and a horizontal side wall connecting the two vertical side walls. A hollow groove is provided on the vertical side wall or the horizontal side wall. The two vertical side walls and one horizontal side wall enclose a horizontally placed U-shaped body, and the opening of the U-shaped body faces the side wall of the rim; the screwed seat covers the horizontal side wall; the two vertical side walls abut against the outer surface of the bead seat of the rim; the portions of the two vertical side walls in contact with the rim are exposed from the screwed seat, and the ends of the two vertical side walls are welded to the outer side wall of the bead seat of the rim to form a welding joint IV.

[0141] Fig.13 It is a three-dimensional view of the fixing member and the rim in this embodiment.

[0142] As Fig.13 shown, specifically, the fixing member 22 (connecting member) of this embodiment is integrally formed by bending a sheet material (metal sheet), which has an axisymmetric structure. Its cross-section along the axial direction of the rim 10 is U-shaped, and the opening of the U-shaped faces the bead seat 12 of the rim 10. The fixing member 22 includes a combining portion 221 and two fixing portions 222.

[0143] The combining portion 221 is located in the middle of the bending direction of the entire fixing member 22. It is a bent sheet-like shape, and its cross-section along the axial direction of the rim 10 is also U-shaped. Moreover, the width of the middle part in the bending direction of the combining portion 221 is smaller than that of the two ends. The middle part of the combining portion 221 is generally a flat sheet-like shape (i.e., the horizontal side wall), and has a middle hole 2214 in the shape of a rectangle, which is used as a combining hole. The two ends of the combining portion 221 respectively have end combining holes 2216 in the shape of a rectangle.

[0144] The two fixing portions 222 extend from both ends of the bending direction of the coupling portion 221, and the fixing portions 222 are rectangular sheets. The surface direction of the fixing portions 222 coincides with the surface direction of the end portion corresponding to the coupling portion 221, and the length of the fixing portions 222 is the same as the width of the end portion corresponding to the coupling portion 221. Both fixing portions 222 are used as bead seat fixing portions 222c. The straight ends of the fixing portions 222 and the coupling portion 221 on the corresponding sides form vertical side walls.

[0145] The outer end surfaces of the two bead seat fixing portions 222c are in contact with the inner side of the bead seat 12 of the rim 10, respectively, and the outer side surface of the outer end portion of each bead seat fixing portion 222c (i.e., the side surface opposite to the other bead seat fixing portion 222c) is welded to the inner side surface of the bead seat 12 to form two strip-shaped bead seat welding portions 43 (welding point four). That is, compared with the first embodiment, the disc brake hub 100 of this embodiment does not have the rim welding portion 41 and the groove bottom welding portion 42, but has two bead seat welding portions 43.

[0146] The surface direction of the middle portion of the coupling portion 221 is perpendicular to the radial direction of the rim 10 , so that the thickness direction of the seat body 21 is consistent with the radial direction of the rim 10 .

[0147] The hollow portion is surrounded by the combination portion 221 and the two fixing portions 222. The lower portion of the mounting hole 213 on the base 21 is located in the space surrounded by the combination portion 221 and the two fixing portions 222, and the lower portion of the fastening rod 300 can also penetrate into the space.

[0148] In addition, the fixing portion 222 of the present embodiment is in the shape of a rectangular sheet, but other shapes may be used, such as an L-shape, in which the sheet portion of the outer end portion of the fixing portion 222 contacts the inner side surface of the bead seat 12; or a T-shape, in which the bottom of the T-shape is integrated with the coupling portion 221, and the outer end surface of the top of the T-shape contacts the inner side surface of the bead seat 12. Similarly, welding between the outer end portion of the L-shaped or T-shaped fixing portion 222 and the inner side surface of the bead seat 12 can also achieve the same effect.

[0149] Similarly, according to the shape of the fixing member 22 of this embodiment, the structure of the corresponding holes and grooves inside the seat body 21 is different from that in the first embodiment, and no long through hole is formed inside the seat body 21.

[0150] In addition, the seat body 21 of this embodiment may also adopt the shape of the first or second modification.

[0151] In this embodiment, other structures are the same as those in the first embodiment, and thus will not be described again.

[0152] Functions and Effects of Embodiment 3

[0153] According to the seat body, disc brake disc mounting seat, and disc brake wheel hub provided in this embodiment, based on the functions and effects of Embodiment 1, since the above-mentioned fixing member structure is adopted and welding is performed between the two symmetric sides of the fixing member and the inner side of the bead seat of the rim, only two straight welds are required for each disc brake disc mounting seat, the welding operation is more convenient, and the two bead seat welding parts formed by welding are located at the inner circle of the rim, and are less likely to be worn compared to the welding parts formed on the rim edge, etc., and the reliability is higher.

[0154] <Embodiment Four>

[0155] This embodiment provides a fixing member, a disc brake disc mounting seat, and a disc brake wheel hub. In this embodiment, the same reference numerals are given to the same constituent elements as in Embodiment 1, and the corresponding descriptions are omitted.

[0156] Compared with Embodiment 1, the difference lies in that the structure of the fixing member in this embodiment is different. The fixing member (connecting member) in this embodiment is a metal sheet with a certain thickness, and the two sides of the long side or the two sides of the wide side of the metal sheet are attached to the surface of the rim; the two sides of the wide side of the metal sheet are attached to the surface of the rim and welded to form a welding joint three.

[0157] Fig.14 is a three-dimensional view of the disc brake disc mounting seat and the rim in this embodiment, Fig.15 is a three-dimensional view of the fixing member and the rim in this embodiment.

[0158] As Fig.14 and 15 shown, specifically, the fixing member 22 in this embodiment is integrally formed by a bent sheet, has an axisymmetric structure, and is generally in a U shape as a whole, and the opening of the U shape faces the center of the rim 10. The fixing member 22 includes two joint parts 221 and a fixing part 222.

[0159] The fixing part 222 is located in the middle of the entire fixing member 22 in the bending direction. The fixing part 222 is in the form of a bent sheet, and its cross-section along the axial direction of the rim 10 is in a U shape, and one side of the middle part of the fixing part 222 has a relief notch 2217 (relief groove) for serving as the above-mentioned hollow part. The relief notch 2217 is a rectangular notch with rounded corners, and its opening direction is perpendicular to the bending direction of the fixing member 22. Its depth is about 1 / 2 of the width of the middle part of the fixing part 222, and its width is greater than the aperture of the mounting hole 213 of the seat body 21. In addition, the middle part of the fixing part 222 can be in the form of a flat sheet, or have a curvature consistent with the inner side of the bead seat 12.

[0160] Along the bending direction of the fixing part 222, a bending part 225 is formed between the middle part of the fixing part 222 and its two ends. The bending part 225 is bent at approximately 90 degrees, and the outer surface of the bending part 225 includes two planes and a quarter cylindrical surface connecting between the two planes.

[0161] The two coupling parts 221 (insertion parts) extend from the two ends of the fixing part 222 in the bending direction, respectively. The coupling part 221 is in the shape of a rectangular sheet, and its surface direction is consistent with the surface direction of the end of the corresponding fixing part 222. The length direction of the coupling part 221 is the width direction of the end of the corresponding fixing part 222, and the length of the coupling part 221 is substantially the same as the width of the end of the fixing part 222. The coupling part 221 has a middle hole 2214 (hollow groove) used as a coupling hole. The middle hole 2214 is a square through hole with rounded corners. In addition, the corners of the outer end of the coupling part 221 are also rounded.

[0162] The two coupling parts 221 are parallel to each other, and the surface direction of the coupling parts 221 is perpendicular to the width direction of the base body 21. The lower part of the mounting hole 213 on the base body 21 is located in the clearance notch 2217 and the space beside the clearance notch 2217 (i.e., the space surrounded by the two coupling parts 221 and the fixing part 222). The lower end of the fastening rod 300 is also accommodated in the clearance notch 2217 and the above space.

[0163] The fixing portion 222 of the fixing member 22 contacts the inner side of the bead seat 12 of the rim 10, and a straight line welding is performed between the quarter cylindrical surface of the two bent portions 225 (i.e., the two sides of the long side of the connecting member) and the inner side surface of the bead seat 12 to form two bead seat welding portions 43 (welding point three). That is, the disc brake hub 100 of this embodiment also only includes two bead seat welding portions 43.

[0164] In addition, the fixing member 22 in this embodiment can also be transformed into a split structure similar to that of the second embodiment, that is, the fixing member 22 of this embodiment can be divided into two sheet-like members roughly along its symmetry axis, which can also achieve effects similar to those of the fixing member 22 of this embodiment and the fixing member 22 of the second embodiment.

[0165] Similarly, according to the shape of the fixing member 22 of this embodiment, the structure of the corresponding hole and groove in the seat body 21 is different from that in the first embodiment, and no long through hole is formed inside the seat body 21.

[0166] In addition, the seat body 21 of this embodiment may also adopt the shape of the first or second modification.

[0167] In this embodiment, other structures are the same as those in the first embodiment, and thus will not be described again.

[0168] Functions and Effects of Embodiment 4

[0169] According to the fixing part, disc brake disc mounting seat and disc brake hub provided in this embodiment, on the basis of the functions and effects of the first embodiment, since the above-mentioned fixing part structure is adopted and welding is performed between the two symmetrical sides of the fixing part and the inner side of the bead seat of the rim, only two straight line weldings are required for each disc brake disc mounting seat, and the welding operation is more convenient. Moreover, the two bead seat welding parts formed by welding are located at the inner ring of the rim, which are less susceptible to wear than the welding parts formed on the wheel rim, and have higher reliability.

[0170] <Example 5>

[0171] This embodiment provides a seat body, a disc brake disc mounting seat and a disc brake hub. In this embodiment, the same symbols are given to the same components as those in the first embodiment and the corresponding descriptions are omitted.

[0172] Compared with the first embodiment, the difference lies in that the structure of the fixing member of this embodiment is different.

[0173] Fig.16 It is a three-dimensional diagram of the fixing member and the rim in this embodiment.

[0174] like Fig.16 As shown, the fixing member 22 of this embodiment is formed integrally by a bent sheet, and a part of the shape thereof is substantially the same as the fixing member 22 of the fourth embodiment; another part of the shape thereof is substantially the same as the shape of a part of the fixing member 22 of the first embodiment, which includes the rim fixing portion 222a and is approximately half of the whole. The fixing member 22 also has a central hole 2214 substantially the same as that of the first embodiment in the middle.

[0175] Likewise, according to the shape of the fixing member 22 of this embodiment, the structure of the corresponding hole and groove inside the seat body 21 is different from that in the first embodiment.

[0176] The disc brake hub 100 of this embodiment includes the same rim welding portion 41 as that in the first embodiment and the same two bead seat welding portions 43 as those in the fourth embodiment.

[0177] In addition, the seat body 21 of this embodiment may also adopt the shape of the first or second modification.

[0178] In this embodiment, other structures are the same as those in the first embodiment, and thus will not be described again.

[0179] Functions and Effects of Embodiment 5

[0180] According to the seat body, disc brake disc mounting seat and disc brake hub provided in this embodiment, on the basis of the functions and effects of the fourth embodiment, since it further has a rim fixing portion, the fixing part can be welded to the bead seat and the rim of the rim at the same time to form three welding parts, so that the bonding strength between the disc brake disc mounting seat and the rim is higher, and the disc brake hub can be used in vehicles with higher strength requirements, such as large-displacement motorcycles.

[0181] <Example 6>

[0182] This embodiment provides a seat body, a disc brake disc mounting seat and a disc brake hub. In this embodiment, the same symbols are given to the same components as those in the first embodiment and the corresponding descriptions are omitted.

[0183] Compared with the first embodiment, the difference is that the structure of the disc brake disc mounting seat in this embodiment is different.

[0184] Fig.17 is a three-dimensional diagram of the disc brake mounting seat in this embodiment, Fig.18 2 is a cross-sectional view of the disc brake mounting seat in this embodiment, in which the mounting hole 213 is not shown.

[0185] like Fig.17 and Fig.18 As shown, in the disc brake mounting seat 20 of this embodiment, the overall shape of the seat body 21 is similar to that of the first embodiment, but the seat body 21 of this embodiment further has a pair of strip grooves 214. The pair of strip grooves 214 are respectively located at both ends of one end of the seat body 21 in the thickness direction, and are located on the same side as the matching notch 2121. The strip groove 214 is a straight groove, extending and penetrating along the length direction of the seat body 21. The groove bottom and both sides of the notch of the strip groove 214 are arc-shaped, that is, they have rounded corners. From the cross section in the length direction of the seat body 21 ( Fig.18 ), the cross section of the support and positioning portion 211 of the seat body 21 is T-shaped with a wide line width and rounded corners, and the cross section of the strip groove 214 is W-shaped with rounded corners. The strip groove 214 is relatively small in size, and its depth along the width direction of the seat body 21 and its depth along the thickness direction of the seat body are significantly smaller than the width and thickness of the seat body 21, respectively.

[0186] The two corners 2221 of the outer end of the fixing portion 222 (rim fixing portion 222a) of the seat body 21 are respectively located outside the slots of the pair of strip grooves 214. The arrangement of the strip grooves 214 allows a larger area of ​​the two corners 2221 to be exposed outside the seat body 21.

[0187] When manufacturing the seat body 21, it is necessary to first position the coupling portion 221 of the fixing member 22 in the mold cavity of the mold for manufacturing the seat body, and clamp the two corners of the outer end of the fixing portion 222 of the fixing member 22 by a corresponding clamp, so as to accurately locate the position of the coupling portion 221 in the mold cavity. The shape of the mold cavity and the outer shape of the mold correspond to the shape of the seat body 21 of this embodiment, that is, the mold also has a pair of strip grooves, so that the two corners 2221 of the fixing portion 222 of the fixing member 22 placed on the mold are exposed to a larger area outside the mold, so that the clamp can better clamp the fixing portion 222.

[0188] In this embodiment, other structures are the same as those in the first embodiment, and thus will not be described again.

[0189] Functions and Effects of Embodiment 6

[0190] According to the seat body, disc brake disc mounting seat and disc brake hub provided in this embodiment, on the basis of the functions and effects of the first embodiment, since the seat body also has a pair of strip grooves, the corresponding mold for manufacturing the seat body also has corresponding strip grooves, so that the exposed area of ​​the two corners of the fixing part of the fixing piece placed on the mold is larger, so that the clamp can better clamp the fixing part 222, that is, the production of the disc brake disc mounting seat is more convenient, and the relative position of the seat body and the fixing piece is more accurate.

[0191] The above embodiments are only used to illustrate the specific implementation of the utility model, and the utility model is not limited to the description scope of the above embodiments. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and the description are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

[0192] For example, in the above embodiments and variations, the seat body is in the shape of a square column with missing corners, a circular column with missing corners, or a combination of a square and a circular column with missing corners. In an alternative solution, the seat body may also be in the shape of a column of other shapes, such as a polygonal column with missing corners.

[0193] In the above embodiment, the shape of the matching notch on the seat body is gentler than the shape of the inner side surface of the rim, and a certain gap is left between the surface of the matching notch and the inner side surface of the rim. In an alternative embodiment, the surface of the matching notch can also be a contoured surface that is closer to the shape of the inner side surface of the rim, and is in contact with or partially in contact with the inner side surface of the rim.

[0194] In the above embodiment, the seat body also has a receiving groove connected to the matching notch, and one end of the receiving groove is connected to the outside. In an alternative solution, one end of the receiving groove may not be connected to the outside, or the receiving groove may not be provided.

[0195] In the above embodiment, the mounting hole on the seat body is a through hole. In an alternative solution, the mounting hole may also be a threaded hole with one end closed.

Claims

1. A seat body, combined with a fixing piece fixed to the rim of a wheel hub, and together with the fixing piece, constitutes a disc brake disc mounting seat for mounting a disc brake disc, characterized in that: include: A mating portion, which is combined with the fixing member and has a mating surface that is mated with the wheel flange and the bead seat of the rim; A mounting portion, used for mounting the disc brake disc; as well as The supporting and positioning portion has a positioning end surface for supporting and positioning the disc brake disc.

2. The seat body according to claim 1, characterized in that: in, The seat body is in the shape of a column with missing corners. The combination matching portion and the support positioning portion are respectively located at the upper part and the lower part of the seat body. The mounting portion is a mounting hole at least provided on the supporting positioning portion, and is used to cooperate with a corresponding fastening rod to fix the disc brake disc. One end of the mounting hole is a mounting opening located on the positioning end surface.

3. The seat body according to claim 2, characterized in that: in, The engaging and fitting portion has a fitting notch, and a surface of the fitting notch is the fitting surface corresponding to the inner shapes of the bead seat and the wheel rim.

4. The seat according to claim 2 or 3, characterized in that: in, The supporting and positioning portion is block-shaped, The positioning end surface is a plane perpendicular to the axial direction of the rim and is located outside the rim in the axial direction of the rim.

5. The seat body according to claim 3, characterized in that: in, The seat body has a pair of strip-shaped grooves, which are respectively located at two ends of a side of the seat body having the matching notch. The extending direction of the strip-shaped groove is consistent with the length direction of the seat body. The strip-shaped groove is used to expose a corner portion of one end of the fixing member.

6. The seat body according to claim 3, characterized in that: in, The combined matching portion also has a receiving groove communicated with the matching notch, for receiving one end of the fastening rod. The mounting hole is a through hole, and the other end thereof is a through opening communicated with the accommodating groove.

7. The seat according to claim 2 or 3, characterized in that: in, The fastening rod is a threaded rod, The mounting hole is a threaded countersunk hole matching the threaded rod.

8. A disc brake disc mounting seat, arranged on the rim of a vehicle wheel hub, for mounting a disc brake disc, characterized in that: include: A fixing member fixed at a predetermined position on the rim; as well as The seat body is combined with the fixing member and is used to install, support and position the disc brake disc. Wherein, the seat body is the seat body described in any one of claims 1-7.

9. A disc brake hub, arranged in a vehicle, characterized in that: include: Rim; as well as A plurality of disc brake disc mounting seats are respectively arranged on the rim and distributed along the circumference of the rim, and are used to mount the disc brake discs. Wherein, the disc brake disc mounting seat is the disc brake disc mounting seat described in claim 8.

10. The disc brake hub according to claim 9, characterized in that: in, The positioning end faces of the multiple disc brake disc mounting seats are located on the same plane, and the plane is perpendicular to the axial direction of the disc brake hub.

11. The disc brake hub according to claim 9 or 10, characterized in that: in, Along the radial direction of the rim, the disc brake disc mounting seat does not exceed the wheel edge of the rim.

12. The disc brake hub according to claim 9 or 10, characterized in that: in, The number of the disc brake mounting seats is 3 to 6, and they are evenly distributed along the circumference of the rim.

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