KR-20260067814-A - WHEEL MOUNTING STURCTURE FOR VEHICLE

Abstract

The present invention comprises a wheel hub; a wheel whose inner diameter portion is inserted into a center boss of the wheel hub; a center lock bolt coupled to the center boss and pressing the inner diameter portion of the wheel toward the hub flange of the wheel hub; and a latch provided to restrain the center lock bolt to the center boss.

Inventors

• 김주호
• 김은식
• 김현수
• 유영승
• 김기정

Assignees

• 현대자동차주식회사
• 기아 주식회사
• 서한이노빌리티(주)

Dates

Publication Date

20260513

Application Date

20241106

Claims (20)

1. Wheel hub; A wheel in which the inner diameter portion is inserted into the center boss of the wheel hub; A center lock bolt coupled to the center boss and pressing the inner diameter portion of the wheel toward the hub flange of the wheel hub; A latch provided to secure the center lock bolt to the center boss; A wheel mounting structure of a vehicle characterized by being composed including
2. In claim 1, The above latch is installed to release the restrained state of the center lock bolt by pressure applied through the center lock bolt. A wheel mounting structure of a vehicle characterized by
3. In claim 2, The above latch is installed so that rotation is constrained on the center boss and axial linear sliding is possible, and is supported on the wheel hub so as to be elastically supported along the axial direction toward the center lock bolt. A wheel mounting structure of a vehicle characterized by
4. In claim 3, Between the above latch and the center lock bolt, latch teeth are mutually formed to allow rotation in the direction in which the center lock bolt is fastened to the center boss, and to restrict rotation in the opposite direction. A wheel mounting structure of a vehicle characterized by
5. In claim 3, A spring seat is installed in the above wheel hub; Between the spring seat and the latch, a spring is provided to elastically support the latch toward the center lock bolt. A wheel mounting structure of a vehicle characterized by
6. In claim 5, A hub cavity is formed in the above wheel hub to reduce the mass of the wheel hub; The above spring seat is supported by a snap ring installed between the hub cavity and the center boss. A wheel mounting structure of a vehicle characterized by
7. In claim 6, The wheel hub is equipped with a circlip that restrains the latch, which is elastically supported by the spring, so that it does not separate from the wheel hub. A wheel mounting structure of a vehicle characterized by
8. In claim 7, A serration portion is formed on the inner surface of the center boss to guide the axial linear movement of the latch; The wheel hub has a snap ring fastening groove for fastening the snap ring and a circlip fastening groove for fastening the circlip, respectively formed therein; The snap ring fastening groove and the circle clip fastening groove are arranged with the serration portion in between. A wheel mounting structure of a vehicle characterized by
9. In claim 3, A serration portion is formed on the inner surface of the center boss to guide the axial linear movement of the latch; A groove and a projection structure corresponding to the serration portion of the center boss are formed on the circumferential surface of the above latch. A wheel mounting structure of a vehicle characterized by
10. In claim 2, Between the head flange of the center lock bolt and the wheel, a pressure ring with a wedge-shaped cross section is provided to press the wheel toward the hub flange; The wedge-shaped cross-section of the above-mentioned pressure ring is formed by a ring inclined surface formed at an angle in the axial direction and contacting the wheel, a ring inner surface surrounding the center boss of the wheel hub, and a bolt-opposing surface formed perpendicular to the axial direction to face the head flange of the center lock bolt. A wheel mounting structure of a vehicle characterized by
11. In claim 10, A friction-reducing washer is inserted between the bolt-opposing surface of the above-mentioned pressure ring and the head flange of the above-mentioned center-lock bolt to reduce friction. A wheel mounting structure of a vehicle characterized by
12. In claim 11, The head flange facing the friction-reducing washer has at least one friction-reducing groove formed therein to reduce the contact area with the friction-reducing washer. A wheel mounting structure of a vehicle characterized by
13. In claim 10, The head flange of the above-mentioned center lock bolt is provided with a seal on its circumferential surface to form a seal between it and the wheel. A wheel mounting structure of a vehicle characterized by
14. In claim 10, On the head flange of the center lock bolt, tool insertion protrusions are regularly formed in a circular pattern in the direction toward the special tool so as to receive rotational force from the special tool while the special tool applies pressure to release the latch through the tool insertion hole formed in the center of the center lock bolt. A wheel mounting structure of a vehicle characterized by
15. In claim 14, The above center lock bolt is equipped with a center cap that seals the tool insertion hole. A wheel mounting structure of a vehicle characterized by
16. In claim 14, In a state where the special tool applies pressure to release the latch, the special tool and the center lock bolt are configured to rotate integrally by means of the combination of the special tool and the tool insertion protrusion; A configuration in which the center lock bolt is separated from the center boss by rotating the special tool in the opposite direction to the direction in which the center lock bolt is fastened to the center boss. A wheel mounting structure of a vehicle characterized by
17. In claim 2, The hub flange of the wheel hub is provided with at least one stud protruding to be inserted into the wheel hub groove of the wheel, and The above stud A stud bolt fastened to the above hub flange; It comprises a stud sleeve formed of a material different from that of the stud bolt, through which the stud bolt passes and which is formed to contact the wheel hub groove. A brake disc is provided between the wheel hub and the wheel; The above stud sleeve is formed such that the diameter of the portion inserted into the wheel hub groove is larger than the diameter of the portion penetrating the brake disc, so that the brake disc can be pressed toward the wheel hub and restrained by the pressure applied by the stud bolt. A wheel mounting structure of a vehicle characterized by
18. A hub flange forming a plane perpendicular to the axial direction; A center boss protruding along the axial direction from the hub flange; A center lock bolt that is fastened to the center boss and presses the inner diameter portion of the wheel inserted into the center boss toward the hub flange; A latch configured to be capable of linear sliding along the axial direction within the center boss, with rotation restricted, and capable of restricting the rotation of a center lock bolt relative to the center boss; A wheel hub assembly of a vehicle characterized by being composed including
19. In claim 18, The above hub flange is provided with at least one stud protruding in the axial direction; The above latch is configured to release the restrained state of the center lock bolt by the axial pressure of a tool inserted through the center of the center lock bolt. A wheel hub assembly of a vehicle characterized by
20. A wheel hub comprising a center boss protruding along the axial direction at the center of rotation of a hub flange and a stud spaced apart from the center boss and protruding along the axial direction from the hub flange, having an inner diameter portion inserted into the center boss at the center of rotation to be coupled to the wheel hub; A wheel hub groove into which the stud is inserted is provided around the inner diameter portion; The area around the inner diameter portion is formed to be pressed against the hub flange by a center lock bolt coupled to the center boss. A vehicle wheel featuring

Description

Wheel Mounting Structure for Vehicle The present invention relates to a technology for mounting a vehicle wheel to a wheel hub. Since a vehicle transmits driving force to the road surface through tires, it adopts a structure in which tires are mounted to wheels and wheels are mounted to the vehicle in order to mount tires on the vehicle. The above wheel is mounted to the vehicle's wheel hub, and a robust mounting structure between the wheel and the wheel hub is required to ensure stable power transmission performance and good durability. Conventionally, a structure in which the wheel is secured to the wheel hub using multiple hub bolts and wheel nuts is widely used, and this structure provides very robust and stable durability. However, the structure of mounting the wheel using the aforementioned multiple hub bolts and wheel nuts requires a relatively long time for wheel replacement and has a somewhat disadvantageous aspect regarding appearance. The recent increase in high-performance vehicles and the advancement of motorsports demand faster wheel replacement times, as well as a more elegant and sophisticated wheel appearance. The matters described above as background technology are intended only to enhance understanding of the background of the present invention and do not constitute prior art already known to those skilled in the art. FIG. 1 is a three-dimensional cross-sectional view illustrating a wheel mounting structure of a vehicle according to the present invention. FIG. 2 is a cross-sectional view illustrating the main part of FIG. 1, FIG. 3 is an exploded perspective view showing the main components of FIG. 1 disassembled. FIG. 4 is a drawing illustrating the state in which a special tool is inserted into the main part of FIG. 2; FIG. 5 is a cross-sectional view illustrating the internal structure of the wheel hub of FIG. 2. FIG. 6 is a cross-sectional view along line F6-F6 of FIG. 4, FIG. 7 is a drawing illustrating an example in which latch teeth are formed between a center lock bolt and a latch. FIG. 8 is a drawing explaining the structure of a center lock bolt and a pressure ring. FIG. 9 is a drawing illustrating a state in which a friction-reducing washer is provided on a center lock bolt. FIG. 10 is a drawing illustrating a state in which a friction-reducing washer is removed from a center lock bolt and a friction-reducing groove is exposed. FIG. 11 is a drawing illustrating a special tool capable of fastening and unfastening a center lock bolt of the present invention. FIG. 12 is a drawing illustrating a center lock bolt, FIG. 13 is a drawing illustrating the process of inserting a special tool into a center lock bolt. FIG. 14 is a drawing showing the state before the special tool presses the latch. FIG. 15 is a drawing illustrating a state in which a special tool is inserted into a center lock bolt to release the latch and apply rotational force to rotate the center lock bolt. FIG. 16 is a drawing illustrating a state in which the latch restrains the rotation of the center lock bolt in the same state as FIG. 14. FIG. 17 is a drawing illustrating a state in which the latch releases the restraint of the center lock bolt in the same state as FIG. 15. FIG. 18 is a drawing illustrating the coupling structure of a wheel and a plurality of studs provided in a wheel hub. FIG. 19 is a drawing illustrating a cross-section of a wheel joined to a stud. In describing the embodiments disclosed in this specification, if it is determined that a detailed description of related prior art may obscure the essence of the embodiments disclosed in this specification, such detailed description is omitted. Furthermore, the attached drawings are intended only to facilitate understanding of the embodiments disclosed in this specification, and the technical concept disclosed in this specification is not limited by the attached drawings; it should be understood that they include all modifications, equivalents, and substitutions that fall within the spirit and technical scope of the present invention. Terms including ordinal numbers, such as first, second, etc., may be used to describe various components, but said components are not limited by said terms. These terms are used solely for the purpose of distinguishing one component from another. A singular expression includes a plural expression unless the context clearly indicates otherwise. In this specification, terms such as “comprising” or “having” are intended to specify the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof. Any number of components or various components in any configuration among the configurations described herein may be included within the invention described herein. Components may include any combination