calipers

Abstract

The present disclosure relates to a caliper for being arranged adjacent to a wheel hub, the wheel hub having a protruding boss at a middle position of the wheel hub, the caliper comprising: a body arranged at an outer periphery of the boss, the body having an arc segment adjacent to and matching the curvature of an arc-shaped side wall of the boss; and a cover mounted to the body, a portion of the cover corresponding to the arc segment being shaped to match the arc segment and closely abutting the arc segment. The caliper with the cover is designed according to the body, the portion of the cover and the body closely match in shape at the middle position of the wheel hub, thereby reducing the installation difficulty and cost. The portion of the cover corresponding to the arc segment is designed to match the shape of the arc segment and closely abut the arc segment, so that the cover occupies less extra space at the arc segment position, and the cover and the body are more compact in space, avoiding interference with the boss on the inner side, and avoiding the problems in the related art that the installation space of the separately installed caliper cover does not match due to the modeling at the middle position of the wheel hub, and subsequent trimming is required.

Description

Technical Field

[0001] This disclosure relates to the field of wheel technology, and more specifically, to a caliper. Background Technology

[0002] Adding caliper covers is a common method to improve the appearance of braking systems. In related technologies, the center of the wheel hub often features an axially protruding design. However, due to limitations imposed by brake lines and brake disc layout, the caliper must be installed on the outer periphery of this protrusion, resulting in a very limited space between the caliper and the center of the wheel hub. When assembling caliper covers, this confined space makes direct installation difficult. The corresponding parts of the caliper cover must be trimmed according to the actual space dimensions. This process is cumbersome, time-consuming, and labor-intensive, and the precision depends on manual labor. Problems such as insufficient trimming leading to installation failure or excessive trimming damaging the caliper cover structure are common. Utility Model Content

[0003] The purpose of this disclosure is to provide a caliper that at least partially solves the problems existing in the related art.

[0004] To achieve the above objectives, this disclosure provides a caliper for use near a wheel hub, wherein the wheel hub has an axially protruding protrusion at its center position, and the caliper includes: A body, disposed on the outer periphery of the protrusion, the body having an arc segment adjacent to and matching the arcuate sidewall of the protrusion; and A cover is installed on the body, wherein the portion of the cover corresponding to the arc segment matches the shape of the arc segment and is close to the arc segment.

[0005] Optionally, the cover includes a plate portion located between the body and the hub, and in a direction perpendicular to the plate portion, the projection of the arc segment is located near the outer edge of the plate portion, and the portion of the outer edge corresponding to the arc segment is constructed as an arc shape matching the curvature of the arc segment.

[0006] Optionally, the cover further includes a flange formed at the outer edge of the plate portion, the flange extending in a direction away from the hub and close to the arc segment.

[0007] Optionally, the housing is provided with multiple reinforcing ribs.

[0008] Optionally, a reinforcing boss is provided at the middle position of the cover.

[0009] Optionally, the outer contour of the reinforcing boss matches the outer contour of the housing.

[0010] Optionally, the outer contour of the reinforcing boss is wavy.

[0011] Optionally, the housing has a plurality of first fastening holes, the body has a plurality of second fastening holes corresponding to the first fastening holes, and the caliper further includes a plurality of fasteners that pass sequentially through the corresponding first fastening holes and second fastening holes.

[0012] Optionally, the housing is formed by stamping sheet metal.

[0013] Optionally, the sheet material is an aluminum alloy sheet.

[0014] The above technical solution provides a caliper with a built-in cover. The cover is specifically designed based on the main body, and the shape of the cover and the main body are closely matched near the center of the wheel hub, reducing installation difficulty and cost. Specifically, an arc segment with matching curvature is set at the position of the main body corresponding to the protrusion to make full use of the outer peripheral space of the protrusion. The part of the cover corresponding to this arc segment is designed to match the shape of the arc segment and be close to the arc segment, so that the extra space occupied by the cover at the arc segment position is small, and the two are more compact in space, avoiding interference with the inner protrusion. This effectively solves the installation problem in narrow spaces and avoids the problems of mismatched installation space and subsequent trimming required when installing a caliper cover separately due to the shape of the center of the wheel hub in related technologies.

[0015] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of a caliper exemplarily shown according to this disclosure; Figure 2 yes Figure 1 A schematic diagram showing the positional relationship between the calipers and the wheel hub; Figure 3 yes Figure 2 The cross-sectional view of the caliper and wheel hub is shown in the figure; Figure 4 This is a schematic diagram of a housing exemplarily shown according to the present disclosure, wherein fasteners are explosively separated.

[0017] Explanation of reference numerals in the attached figures 1-Hub; 101-Protrusion; 102-Arc-shaped sidewall; 2-Body; 201-Arc segment; 3-Cover; 301-Plate; 302-Flange; 4-Reinforcing rib; 5-Reinforcing boss; 601-First fastening hole; 602-Second fastening hole; 7-Fastener. Detailed Implementation

[0018] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0019] In this disclosure, unless otherwise stated, directional terms such as "inner" and "outer" refer to the contour of the corresponding component itself. For example, "outer periphery" refers to the radial outer side of the protrusion, while "outer periphery" refers to the outer edge of the protrusion, and "outer edge" refers to the outer peripheral edge of the plate, where the projection of the arc segment is located near the outer edge. The term "axial direction" is based on the axial direction of the hub.

[0020] In addition, the terms "first," "second," etc., used in this disclosure are for distinguishing one element from another and do not have sequential or importance. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0021] Reference Figures 1-4 This disclosure exemplarily illustrates a caliper for placement near a wheel hub 1. The wheel hub 1 has an axially protruding protrusion 101 at its center, which may correspond to the position of a printed vehicle logo on the wheel hub 1. The protrusion 101 may be cylindrical, frustum-shaped, or stepped frustum-shaped, etc. The caliper includes a body 2 and a cover 3, which is used to conceal and decorate the caliper body 2. The body 2 is disposed on the outer periphery of the protrusion 101, i.e., on the radial outer periphery. The body 2 has an arc segment 201 that is adjacent to and matches the arcuate sidewall 102 of the protrusion 101. It should be noted that "arc matching" does not require that the arcs of the two be absolutely geometrically identical; it is sufficient that their overall extension paths are similar and approximately parallel. This point will not be explained further below. The cover 3 is installed on the body 2 to conceal the body 2 and serve a decorative purpose. The portion of the cover 3 corresponding to the arc segment 201 matches the shape of the arc segment 201 and is close to the arc segment 201. Here, "shape matching" means that the two have similar shapes, such as having an arc shape that matches the curvature of arc segment 201, so that they can be adapted to the shape of arc segment 201 and arranged close to arc segment 201. This disclosure does not limit "close to", as long as the gap between the two is small enough to meet the arrangement in a narrow space without interfering with the inner protrusion 101, for example, it can be less than 5mm or less than 3mm.

[0022] By using the above technical solution, a caliper with a built-in cover 3 is provided. The cover 3 is specifically designed based on the body 2. In the part of the cover 3 near the middle of the wheel hub 1, the shape of the cover 3 and the body 2 are matched and fit tightly, reducing the difficulty and cost of installation. Specifically, an arc segment 201 with matching curvature is set at the position of the body 2 corresponding to the protrusion 101 to make full use of the outer peripheral space of the protrusion 101. The part of the cover 3 corresponding to the arc segment 201 is designed to match the shape of the arc segment 201 and be close to the arc segment 201. This makes the extra space occupied by the cover 3 at the position of the arc segment 201 smaller, and the two are more compact in space, avoiding interference with the inner protrusion 101. This effectively solves the installation problem in narrow spaces and avoids the problems in related technologies where the shape of the middle position of the wheel hub 1 leads to mismatch in installation space when installing a caliper cover separately, requiring subsequent trimming.

[0023] This disclosure does not impose limitations on the specific structure of the casing 3; see reference to... Figure 3 and Figure 4 In some embodiments of this disclosure, the housing 3 may include a plate portion 301 located between the body 2 and the hub 1. This plate portion 301 has a decorative effect; however, it is not necessarily a perfectly geometric plate. It may have concave and convex shapes, curvature, etc., as long as it appears as a relatively thin plate. In a direction perpendicular to the plate portion 301, the projection of the arc segment 201 is located near the outer edge of the plate portion 301. The portion of the outer edge corresponding to the arc segment 201 can be constructed as an arc shape matching the curvature of the arc segment 201. This design, by constructing the outer edge of the plate portion 301 as an arc shape matching the curvature of the arc segment 201, allows the outer edge of the plate portion 301 to extend along the length direction of the arc segment 201, avoiding excessive radial inward protrusion beyond the arc segment 201. This allows it to adapt to confined installation environments with limited installation space between the arc segment 201 and the protrusion 101.

[0024] Reference Figure 3 and Figure 4In some embodiments of this disclosure, the cover 3 may further include a flange 302 formed at the outer edge of the plate portion 301. The flange 302 may extend in a direction away from the hub 1 and be close to the arc segment 201. The flange 302 provides multiple beneficial effects: on the one hand, the flange 302 is integrally formed by extending from the outer edge of the plate portion 301, which can significantly enhance the structural strength of the cover 3 and improve its resistance to deformation; on the other hand, the curvature of the extension path of the flange 302 is consistent with that of the arc segment 201, so that the flange 302 can form a visually coherent echo with the contour of the arc segment 201, which not only further enhances the decorative effect of the plate portion 301, but also improves the appearance regularity between the cover 3 and the body 2. Meanwhile, the design of the flange 302 extending away from the hub 1 and close to the arc segment 201 avoids the flange 302 occupying extra assembly space in the radial direction. Furthermore, the adaptability design that matches the curvature of the arc segment 201 ensures that the flange 302 can smoothly adapt to the narrow installation environment between the arc segment 201 and the protrusion 101 without causing installation interference problems.

[0025] Reference Figure 4 In some embodiments of this disclosure, the housing 3 may be provided with a plurality of reinforcing ribs 4, which may specifically be provided in the aforementioned plate portion 301. By providing reinforcing ribs 4, the structural strength of the housing 3 can be effectively increased.

[0026] Reference Figure 4 In some embodiments of this disclosure, a reinforcing boss 5 may be provided at the middle position of the cover 3, and the reinforcing boss 5 may be specifically provided in the aforementioned plate portion 301. By providing the reinforcing boss 5, the structural strength of the cover 3 can be effectively increased.

[0027] Furthermore, in some embodiments of this disclosure, the outer contour of the reinforcing boss 5 can match the outer contour of the housing 3, that is, match the outer contour of the plate portion 301. It should be explained here that "matching" does not mean that the two are identical in shape, but rather that the two appear similar in shape overall, for example, in... Figure 4 In the illustrated embodiment, both components are constructed as elongated strips, with their two long sides having similar curvatures. This design ensures that the reinforcing boss 5 and the outer contour of the plate 301 are similar, precisely corresponding to the main stress-bearing areas of the plate 301. When the plate 301 is subjected to radial force or vibration load, the reinforcing boss 5 can evenly distribute the force along the contour extension direction, effectively avoiding cracking and deformation caused by localized stress concentration. Furthermore, the similar contours make the connection boundary between the reinforcing boss 5 and the plate 301 more continuous, without significant abrupt shape changes, reducing structural weak points at the connection. This is suitable for scenarios where the cover 3 is subjected to long-term vibration and assembly pressure between the hub 1 and the body 2, significantly improving the cover 3's resistance to deformation and structural stability.

[0028] Reference Figure 4In this embodiment, the outer contour of the reinforcing boss 5 can be constructed in a wave shape. This design serves two purposes: first, it increases the contact area between the reinforcing boss 5 and the plate portion 301, improving the stability of their connection; second, the wave-shaped structure can distribute the stress, reduce stress concentration, and enhance resistance to bending and vibration.

[0029] Reference Figure 2 and Figure 4 In some embodiments of this disclosure, the housing 3 may have multiple first fastening holes 601, and the body 2 may have multiple second fastening holes 602 corresponding to the first fastening holes 601. The caliper may also include multiple fasteners 7 that pass sequentially through the corresponding first fastening holes 601 and second fastening holes 602. In some embodiments, the fasteners 7 may be bolts, and the fastening holes may be constructed as threaded holes adapted to the bolts. The bolts can achieve reliable locking through threaded engagement. This fastening method is convenient for installation and disassembly. During assembly, the bolts only need to be sequentially inserted into the corresponding first fastening holes 601 and second fastening holes 602 and tightened. During disassembly, the bolts can be loosened with conventional tools. The operation steps are simple. There is no need to design and assemble additional mounting brackets for the housing 3, reducing the number of parts and assembly steps. At the same time, it avoids the bracket occupying the space between the housing 3 and the body 2, greatly optimizing space costs and adapting to the compact installation environment between the two.

[0030] In this disclosure, the housing 3 can be formed by sheet metal stamping. Using sheet metal stamping to prepare the housing 3 has several advantages. First, it allows for the direct one-piece molding of the housing 3 structure by leveraging the ductility of the sheet metal, eliminating the need for complex cutting or casting processes. This results in a simple molding process, high production efficiency, high yield, and precise control over the size and shape of the housing 3, ensuring its compatibility with the body 2 and the hub 1. Second, the stamped housing 3 has a uniform thickness (thin layer), eliminating the need for additional redundant material. This fully utilizes the narrow space between the body 2 and the hub 1, avoiding the structural bulkiness issues associated with die casting and further optimizing the overall spatial layout of the caliper.

[0031] This disclosure does not limit the material used; for example, in some embodiments, the material can be aluminum alloy. Aluminum alloy has a much lower density than metals such as steel and iron, which can further reduce the weight of the housing 3 and decrease the overall load on the caliper based on the stamping process. Secondly, aluminum alloy has excellent thermal conductivity, which can quickly conduct heat generated around the housing 3 due to caliper operation, preventing heat buildup from affecting caliper performance. Furthermore, a dense oxide protective film easily forms on the surface of aluminum alloy, effectively resisting corrosion from humid and oily working environments, improving the corrosion resistance of the housing 3, extending its service life, and ensuring the long-term stable functioning of the housing 3.

[0032] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0033] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0034] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A caliper for use near a wheel hub, characterized in that, The hub has an axially protruding convex portion at its center, and the caliper includes: A body, disposed on the outer periphery of the protrusion, the body having an arc segment adjacent to and matching the arcuate sidewall of the protrusion; and A cover is installed on the body, wherein the portion of the cover corresponding to the arc segment matches the shape of the arc segment and is close to the arc segment.

2. The caliper according to claim 1, characterized in that, The cover includes a plate portion located between the body and the hub. In a direction perpendicular to the plate portion, the projection of the arc segment is located near the outer edge of the plate portion. The portion of the outer edge corresponding to the arc segment is constructed as an arc shape matching the curvature of the arc segment.

3. The caliper according to claim 2, characterized in that, The cover also includes a flange formed at the outer edge of the plate portion, the flange extending in a direction away from the hub and close to the arc segment.

4. The caliper according to claim 1, characterized in that, The cover is provided with multiple reinforcing ribs.

5. The caliper according to claim 1, characterized in that, A reinforcing boss is provided in the middle of the cover.

6. The caliper according to claim 5, characterized in that, The outer contour of the reinforcing boss matches the outer contour of the cover.

7. The caliper according to claim 6, characterized in that, The outer contour of the reinforcing boss is wavy.

8. The caliper according to claim 1, characterized in that, The cover has a plurality of first fastening holes, the body has a plurality of second fastening holes corresponding to the first fastening holes, and the caliper further includes a plurality of fasteners that pass through the corresponding first fastening holes and second fastening holes in sequence.

9. The caliper according to any one of claims 1-8, characterized in that, The cover is formed by stamping sheet metal.

10. The caliper according to claim 9, characterized in that, The sheet material is an aluminum alloy sheet.

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