KR-20260067813-A - WHEEL MOUNTING STURCTURE FOR VEHICLE

KR20260067813AKR 20260067813 AKR20260067813 AKR 20260067813AKR-20260067813-A

Abstract

The present invention comprises a wheel hub having a center boss protruding along the axial direction at the center; a wheel having an inner diameter portion inserted into the center boss; a displacement transmission body provided to transmit an axial linear displacement occurring within the center boss to the radially outer side of the center boss; and a pressure ring provided on the wheel to press the wheel toward the wheel hub by means of the displacement transmitted by the displacement transmission body.

Inventors

김주호
김은식
김현수
유영승
김기정

Assignees

현대자동차주식회사
기아 주식회사
서한이노빌리티(주)

Dates

Publication Date: 20260513
Application Date: 20241106

Claims (20)

A wheel hub having a center boss protruding along the axial direction at the center; A wheel in which the inner diameter portion is inserted into the center boss; A displacement transmission body configured to transmit axial linear displacement occurring within the center boss to the radial outer side of the center boss; A pressure ring provided on the wheel to press the wheel in the direction of the wheel hub by the displacement transmitted by the displacement transmission body; A wheel mounting structure for a vehicle characterized by being composed of including
In claim 1, The above displacement transfer body is composed of a clamping ball inserted into a cage hole formed to penetrate radially in the center boss, and A plurality of cage holes of the center boss are formed at regular intervals along the circumferential direction of the center boss; A plurality of the above clamping balls are each inserted into the cage holes, and The above cage hole is formed with a hole inclined surface that is inclined with respect to the radial direction of the center boss, at least a portion of which is inclined so that the clamping ball can protrude to the outer surface of the center boss but cannot pass through. A wheel mounting structure of a vehicle characterized by
In claim 2, A slider installed within the center boss so as to be able to slide linearly along the axial direction; A rotary drive body configured to generate axial linear displacement of the slider by rotational force provided from the outside; A wheel mounting structure of a vehicle characterized by being composed of additional components.
In claim 3, A slider inclined surface is formed on the outer surface of the above slider to enable the clamping ball to be pressed radially outward from the center boss within the cage hole by axial linear displacement with respect to the center boss. A wheel mounting structure of a vehicle characterized by
In claim 3, The above slider inclined surface is composed of a curved surface that is non-linearly inclined with respect to the axial direction. A wheel mounting structure of a vehicle characterized by
In claim 3, A center cap is provided to seal the end of the center boss; The above rotary drive body is composed of a center bolt that penetrates the center cap and is screw-coupled to the slider. A wheel mounting structure of a vehicle characterized by
In claim 6, When the center bolt is rotated in the forward direction, the slider moves linearly in the axial direction toward the wheel side, moving the displacement transmission body radially outward from the center boss, and the displacement transmission body moved radially outward from the center boss presses the pressure ring toward the wheel hub, thereby configuring the wheel to be fixed to the wheel hub. A wheel mounting structure of a vehicle characterized by
In claim 7, When the center bolt is rotated in the reverse direction, the slider moves linearly in the axial direction toward the wheel hub, moving the displacement transmission body radially inward toward the center boss, and the pressure of the pressure ring is released, thereby releasing the wheel from being fixed to the wheel hub. A wheel mounting structure of a vehicle characterized by
In claim 6, The above slider is supported by a spring so as to be elastically supported toward the center cap. A wheel mounting structure of a vehicle characterized by
In claim 9, The wheel hub is provided with a hub cavity for mass reduction that communicates with the internal space of the center boss; A spring seat supporting the spring is installed between the hub cavity and the internal space of the center boss. A wheel mounting structure of a vehicle characterized by
In claim 10, The above hub cavity has a stepped portion formed with a discontinuously narrowing diameter to insert and support the spring seat. A wheel mounting structure of a vehicle characterized by
In claim 3, A serration portion is formed on the inner surface of the center boss of the wheel hub to guide the axial linear movement of the slider; A structure of grooves and protrusions corresponding to the serration portion of the center boss is formed on the circumferential surface of the above slider. A wheel mounting structure of a vehicle characterized by
In claim 2, The above pressure ring is provided with a wheel-side inclined surface inclined with respect to the axial direction to convert the radial displacement of the clamping ball into axial displacement. A wheel mounting structure of a vehicle characterized by
In claim 13, The above pressure ring is pressed into and fixed to the wheel to apply pressure to the inner diameter portion of the wheel along the axial direction. A wheel mounting structure of a vehicle characterized by
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; A wheel mounting structure for a vehicle characterized by comprising: a stud sleeve formed to penetrate the stud bolt and contact the wheel hub groove, and formed of a material different from that of the stud bolt.
A hub flange providing a plane perpendicular to the axial direction; A center boss protruding along the axial direction from the hub flange; A center cap fastened to seal the end of the center boss; A center bolt installed through the above center cap; A slider configured to be screw-coupled to the center bolt and to slide linearly along the axial direction within the center boss when the center bolt rotates; A clamping ball installed to move radially outward of the center boss by the linear displacement of the slider; A wheel hub assembly of a vehicle characterized by being composed including
In claim 16, A cage hole is formed in the center boss so that the clamping ball can protrude radially outward from the center boss; The above cage holes are formed in multiple numbers at regular intervals along the circumferential direction of the center boss. A wheel hub assembly of a vehicle characterized by
In claim 17, The above cage hole is formed with a hole inclined surface that is inclined with respect to the radial direction of the center boss, such that the clamping ball can protrude to the outer surface of the center boss but cannot pass through. A wheel hub assembly of a vehicle characterized by
In claim 16, A spring is installed between the slider and the wheel hub to elastically support the slider toward the center cap. A wheel hub assembly of a vehicle characterized by
A wheel hub comprising a center boss protruding along the axial direction at the center of rotation of a hub flange, a clamping ball installed to protrude outwardly from the outer surface of the center boss, and a stud spaced apart from the center boss and provided to protrude along the axial direction from the hub flange, is coupled to a wheel hub having an inner diameter portion inserted into the center boss at the center of rotation; A wheel hub groove into which the stud is inserted is provided around the inner diameter portion; A structure comprising a pressure ring provided to be pressed by the clamping ball to press the inner diameter portion in the direction of the hub flange. 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 of the main part of FIG. 1, FIG. 3 is an exploded perspective view of the main parts of FIG. 1, Figure 4 is a cross-sectional view of a wheel hub, FIG. 5 is a detailed view of the main part of FIG. 1, FIG. 6 is a drawing illustrating the state in which the wheel is released from constraint. Figure 7 is a drawing illustrating the state in which the wheel is constrained. 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 of the features described herein and may be arranged in any configuration among the various configurations described herein. Concepts regarding the structure and arrangement of the components of the invention, as well as their use and operation, may be applied to any number of embodiments of any combination, as well as to specific embodiments discussed herein. Embodiments including those having various features of various arrangements are described below with reference to the drawings. Hereinafter, various embodiments disclosed in this specification will be described in detail with reference to the attached drawings. Identical or similar components are given the same reference number regardless of the drawing symbols, and redundant descriptions thereof will be omitted. Referring to FIGS. 1 to 7, an embodiment of the wheel (7) mounting structure of the vehicle of the present invention comprises: a wheel hub (3) having a center boss (1) protruding along the axial direction at the center; a wheel (7) having an inner diameter portion (5) inserted into the center boss (1); a displacement transmission body (9) provided to transmit an axial linear displacement occurring within the center boss (1) to the radial outer side of the center boss (1); and a pressure ring (11) provided on the wheel (7) to press the wheel (7) toward the wheel hub (3) by the displacement transmitted by the displacement transmission body (9). That is, in this embodiment, when the inner diameter portion (5) of the wheel (7) is