Wheel caps

Abstract

To increase degree-of-freedom of a configuration on the other side of an insertion hole for an insertion part.SOLUTION: In a wheel cap 10, an insertion part 22 of a cap body 20 is inserted in an insertion hole 12A between spokes 18 of a wheel 12. Further, a first engagement surface 32A of the insertion part 22 is engaged with the spoke 18, and displacement of the insertion part 22 with respect to the insertion hole 12A is limited. A second engagement surface 34A of the insertion part 22 is engaged with a limit face 18A of the spoke 18, and departure of the insertion part 22 from the insertion hole 12A is limited. Herein, the first engagement surface 32A and the second engagement surface 34A are provided on the spoke 18 side of the insertion part 22. Therefore, degree-of-freedom of a configuration on a side opposite to the spoke 18 of the insertion part 22 can be increased.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a wheel cap in which a cap body covers a wheel. [Background Art]

[0002] In the cap described in Patent Document 1 below, a pair of cover bodies is inserted into a through hole of a wheel.

[0003] Here, in this cap, a pair of cover bodies are engaged with one side and the other side of the through hole. [Prior Art Documents] [Patent Documents]

[0004] [Patent Document 1] Japanese Unexamined Patent Application Publication No. 2016-193693 [Summary of the Invention] [Problem to be Solved by the Invention]

[0005] An object of the present invention, in consideration of the above facts, is to obtain a wheel cap that can increase the degree of design freedom on the other side of the insertion hole relative to the insertion portion. [Means for Solving the Problem]

[0006] A wheel cap according to a first aspect of the present invention includes: a cap body that covers a wheel, the wheel being provided with a restriction portion having a restriction surface on one side of an insertion hole; an insertion portion that is provided on the cap body and is inserted into the insertion hole; a first engagement surface that is provided on the insertion portion at one side of the insertion hole, is engaged with the restriction portion, and restricts displacement of the insertion portion relative to the insertion hole; and a second engagement surface that is provided on the insertion portion at one side of the insertion hole, is inclined closer to the restriction surface side than the first engagement surface, and is engaged with the restriction surface to restrict detachment of the insertion portion from the insertion hole.

[0007] A second aspect of the present invention is a wheel cap in which, in the first aspect of the present invention, the first engagement surface and the second engagement surface are provided at the same insertion portion of the insertion part.

[0008] A third aspect of the present invention is a wheel cap according to the first aspect of the present invention, wherein the first engagement surface is provided at the first insertion portion of the insertion portion, and the second engagement surface is provided at the second insertion portion of the insertion portion.

[0009] A wheel cap according to a fourth aspect of the present invention is characterized in that the first insertion portion and the second insertion portion are separated in the wheel cap according to a third aspect of the present invention.

[0010] A fifth aspect of the present invention is a wheel cap according to any one of the first to fourth aspects of the present invention, comprising a biasing portion that biases the first engagement surface and the second engagement surface toward one side of the insertion hole.

[0011] A wheel cap according to a sixth aspect of the present invention is a wheel cap according to a fifth aspect of the present invention, wherein the same biasing portion of the biasing portion biases the first engagement surface and the second engagement surface.

[0012] A wheel cap according to a seventh aspect of the present invention is a wheel cap according to a fifth aspect of the present invention, wherein the first biasing portion of the biasing portion biases the first engagement surface, and the second biasing portion of the biasing portion biases the second engagement surface.

[0013] The wheel cap of the eighth aspect of the present invention is the wheel cap of the seventh aspect of the present invention, wherein the first biasing portion and the second biasing portion are separated. [Effects of the Invention]

[0014] In the wheel cap of the first aspect of the present invention, the cap body covers the wheel, and the insertion portion of the cap body is inserted into the insertion hole of the wheel. Furthermore, a first engagement surface is provided on one side of the insertion hole of the insertion portion, and the first engagement surface engages with a limiting portion on one side of the insertion hole of the wheel, thereby restricting the displacement of the insertion portion relative to the insertion hole. In addition, a second engagement surface is provided on one side of the insertion hole of the insertion portion, and the second engagement surface is inclined toward the limiting surface side of the limiting portion compared to the first engagement surface, so that the second engagement surface engages with the limiting surface, thereby restricting the detachment of the insertion portion from the insertion hole.

[0015] Here, as described above, the insertion portion is provided with a first engagement surface and a second engagement surface on one side of the insertion hole. Therefore, the need to engage the other side of the insertion portion with the wheel can be reduced, and the degree of freedom in the configuration of the other side of the insertion portion with the wheel can be greatly increased.

[0016] In the wheel cap of the second aspect of the present invention, a first engagement surface and a second engagement surface are provided at the same insertion portion of the insertion part. This simplifies the structure of the insertion part.

[0017] In a wheel cap according to a third aspect of the present invention, a first engagement surface is provided at the first insertion portion of the insertion part, and a second engagement surface is provided at the second insertion portion of the insertion part. As a result, the first engagement surface can engage well with the limiting portion, and the second engagement surface can engage well with the limiting surface.

[0018] In the wheel cap of the fourth aspect of the present invention, the first insertion portion and the second insertion portion are separated. Therefore, the relative position of the first engagement surface and the second engagement surface can be easily adjusted.

[0019] In the wheel cap of the fifth aspect of the present invention, the biasing portion biases the first engagement surface and the second engagement surface to one side of the insertion hole. As a result, the first engagement surface can effectively engage with the limiting portion, and the second engagement surface can effectively engage with the limiting surface.

[0020] In the wheel cap according to the sixth aspect of the present invention, the same biasing portion of the biasing part biases both the first engagement surface and the second engagement surface. Therefore, the configuration of the biasing part can be simplified.

[0021] In the wheel cap according to the seventh aspect of the present invention, the first biasing portion of the biasing member biases the first engagement surface, and the second biasing portion of the biasing member biases the second engagement surface. Accordingly, the biasing member can favorably bias both the first engagement surface and the second engagement surface.

[0022] In the wheel cap according to the eighth aspect of the present invention, the first biasing portion and the second biasing portion are separated from each other. Accordingly, the relative position between the first biasing portion and the second biasing portion can be easily adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] [Figure 1] (A) is a front view, viewed from a front side, showing a wheel according to a first embodiment of the present invention; (B) is a front view, viewed from the front side, showing the wheel cap according to the first embodiment of the present invention. [Figure 2] It is a perspective view, viewed from a back side, showing the wheel cap according to the first embodiment of the present invention. [Figure 3] It is a cross-sectional view taken from a side (a cross-sectional view along line 3-3 in FIG. 2), showing the wheel cap according to the first embodiment of the present invention. [Figure 4] (A) and (B) are views showing main parts of the wheel cap according to the first embodiment of the present invention; (A) is a perspective view viewed from the back side, and (B) is a cross-sectional view taken from the side (a cross-sectional view along line 4B-4B in (A)). [Figure 5] (A) and (B) are cross-sectional views taken from the side, showing main parts of the wheel cap according to the first embodiment of the present invention; (A) shows the wheel cap in a normal state, and (B) shows the wheel cap when a displacement force acting toward the front side is applied thereto. [Figure 6] It is a perspective view, viewed from the back side, showing a wheel cap according to a second embodiment of the present invention. [Figure 7] (A) is a perspective view, viewed from the back side, showing main parts of the wheel cap according to the second embodiment of the present invention; (B) is a perspective view, viewed from the back side, showing a leaf spring of the wheel cap according to the second embodiment of the present invention. [Figure 8] (A) and (B) are side cross-sectional views showing the main part of a wheel cap according to a second embodiment of the present invention, where (A) is a cross-sectional view taken along line 8A-8A in Figure 7(A), and (B) is a cross-sectional view taken along line 8B-8B in Figure 7(A). [Figure 9] This is a rear-view perspective view showing a wheel cap according to the third embodiment of the present invention. [Figure 10] This is a perspective view from the back showing the main part of the wheel cap according to the third embodiment of the present invention. [Modes for carrying out the invention]

[0024] [First Embodiment] Figure 1(A) shows a front view of the wheel 12 according to the first embodiment of the present invention, and Figure 1(B) shows a front view of the wheel cap 10 according to the first embodiment of the present invention, also viewed from the front. Furthermore, Figure 2 shows a perspective view of the wheel cap 10 viewed from the back. In the drawings, the front sides of the wheel 12 and wheel cap 10 are indicated by arrows SF.

[0025] In this embodiment, the wheel 12 is provided on a vehicle (automobile), and the front side of the wheel 12 is oriented outward in the width direction of the vehicle.

[0026] As shown in Figure 1(A), a polygonal plate-shaped (approximately hexagonal plate-shaped in this embodiment) coupling portion 14 is coaxially provided in the center of the front side of the wheel 12, and the coupling portion 14 is connected to the vehicle's hub (not shown). A substantially cylindrical rim portion 16 is coaxially provided on the outer circumference of the wheel 12, and a tire is attached to the outer circumference of the rim portion 16.

[0027] The wheel 12 has multiple spokes 18 (six in this embodiment) that act as limiting parts between the connecting part 14 and the rim part 16, and the spokes 18 extend in the radial direction of the wheel 12. The spokes 18 connect the connecting part 14 and the rim part 16, and the multiple spokes 18 are arranged at equal intervals in the circumferential direction of the wheel 12. The spokes 18 have a substantially trapezoidal cross-section (see Figure 3), and the front and back surfaces of the spokes 18 are arranged perpendicular to the front-back direction. The circumferential dimension of the back surface of the spoke 18 in the wheel 12 is larger than the circumferential dimension of the front surface of the spoke 18 in the wheel 12, and the back surface of the spoke 18 is a limiting surface 18A. Multiple substantially fan-shaped insertion holes 12A (six in this embodiment) are formed through the wheel 12, and the connecting part 14, the rim part 16, and a pair of spokes 18 are arranged around the insertion holes 12A.

[0028] The wheel cap 10 according to this embodiment is attached to the front side of the wheel 12, and the front side of the wheel cap 10 is oriented outward in the width direction of the vehicle.

[0029] As shown in Figures 1(B) and 2, the wheel cap 10 is provided with a resin cap body 20, which is roughly disc-shaped and serves as the main body (design portion). The cap body 20 is positioned coaxially with the wheel 12. The cap body 20 covers the front side of the wheel 12 (including the multiple insertion holes 12A), and the cap body 20 is in contact with the front surface of the wheel 12. Multiple elongated exposed holes 20A (six in this embodiment) are formed through the cap body 20. The exposed holes 20A extend radially outward from the outer circumference of the central part of the cap body 20 and are open to the radially outward side of the cap body 20. The multiple exposed holes 20A are arranged at equal intervals in the circumferential direction of the cap body 20, and the exposed holes 20A expose the spokes 18 of the wheel 12 to the front side.

[0030] Multiple insertion portions 22 (see (A) and (B) in Figures 3 and 4) (12 in this embodiment) are integrally formed on the cap body 20, and the insertion portions 22 protrude from the back side of the cap body 20 near the outer circumference of the cap body 20. The insertion portions 22 are arranged on both sides of the exposed hole 20A in the circumferential direction of the cap body 20, and the insertion portions 22 face each other in the circumferential direction of the cap body 20, with the exposed hole 20A in between. The insertion portions 22 are inserted into the insertion hole 12A of the wheel 12 from the front side, and the insertion portions 22 face each other in the circumferential direction of the wheel 12, with the spokes 18 of the wheel 12 in between.

[0031] A base 24 with a U-shaped cross-section is provided at the base end of the insertion portion 22. Rectangular plate-shaped inner wall 24A and outer wall 24B are provided on the side of the base 24 opposite to the exposed hole 20A and on the side of the exposed hole 20A, respectively. The inner wall 24A and outer wall 24B are integrated with the cap body 20 and are positioned perpendicular to the circumferential direction of the cap body 20. A rectangular plate-shaped top wall 24C is provided on the side of the base 24 opposite to the cap body 20, and the top wall 24C is positioned perpendicular to the front and back direction of the cap body 20.

[0032] A rectangular plate-shaped support plate 26 is provided at the tip end of the insertion portion 22, and the support plate 26 is positioned perpendicular to the circumferential direction of the cap body 20. The support plate 26 protrudes from the end of the base 24 opposite to the exposed hole 20A to the back side of the cap body 20, and the side of the support plate 26 opposite to the exposed hole 20A is flush with the side of the inner wall 24A of the base 24 opposite to the exposed hole 20A. The tip edge of the support plate 26 protrudes toward the exposed hole 20A.

[0033] On the side of the insertion portion 22 opposite to the exposed hole 20A, a predetermined number (two in this embodiment) of right-angled triangular plate-shaped reinforcing plates 28 are provided as reinforcing parts, and the reinforcing plates 28 are integrated with the cap body 20. The reinforcing plates 28 are arranged perpendicular to the radial direction of the cap body 20, and the predetermined number of reinforcing plates 28 are lined up in the radial direction of the cap body 20. The reinforcing plates 28 are integrated with the side of the base 24 and support plate 26 opposite to the exposed hole 20A, and extend to the tip or near the tip of the support plate 26, thereby reinforcing the base 24 and support plate 26 and limiting deformation of the base 24 and support plate 26 toward the side opposite to the exposed hole 20A.

[0034] The tip portion of the insertion portion 22 is provided with a roughly rectangular plate-shaped engaging claw 30, which is positioned perpendicular to the circumferential direction of the cap body 20. The engaging claw 30 protrudes from the portion of the base 24 on the exposed hole 20A side to the back side of the cap body 20, and the thickness dimension of the base end of the engaging claw 30 gradually increases on both sides in the thickness direction of the engaging claw 30 as it moves toward the base 24 side. The tip edge of the engaging claw 30 protrudes toward the opposite side from the exposed hole 20A.

[0035] A roughly trapezoidal columnar first claw portion 32 is integrally formed at the tip of the engaging claw 30 as a first engaging portion. The first claw portion 32 protrudes toward the exposed hole 20A and extends in the width direction of the engaging claw 30. The surface of the first claw portion 32 opposite to the cap body 20 is inclined toward the cap body 20 as it approaches the exposed hole 20A. The surface of the first claw portion 32 toward the cap body 20 is the first engaging surface 32A, and the first engaging surface 32A is inclined toward the opposite side of the cap body 20 as it approaches the exposed hole 20A. The first engagement surface 32A engages (line contact) with the corner on the back side (restricting surface 18A side) and insertion hole 12A side of the spoke 18 of the wheel 12. As a result, a displacement force is applied to the wheel cap 10 toward the back side (wheel 12 side), which limits the play (displacement) of the wheel cap 10 relative to the wheel 12, and the wheel cap 10 is attached to the wheel 12.

[0036] At the tip of the engaging claw 30, a roughly trapezoidal columnar second claw portion 34 is integrally formed as a second engaging portion on the side of the first claw portion 32 facing the exposed hole 20A. The second claw portion 34 protrudes toward the exposed hole 20A and extends in the width direction of the engaging claw 30. The side of the second claw portion 34 opposite to the cap body 20 is flush with the side of the first claw portion 32 opposite to the cap body 20, and is inclined toward the cap body 20 as it approaches the exposed hole 20A. The side of the second claw portion 34 facing the cap body 20 is the second engaging surface 34A, which protrudes toward the exposed hole 20A from the first engaging surface 32A of the first claw portion 32. The second engagement surface 34A is positioned on the back side of the limiting surface 18A of the spoke 18, substantially perpendicular to the front-to-back direction of the cap body 20 (substantially parallel to the limiting surface 18A), and the second engagement surface 34A is inclined toward the limiting surface 18A compared to the first engagement surface 32A.

[0037] A metal leaf spring 36 with a roughly U-shaped cross-section (see (A) and (B) in Figures 3 and 4) is attached to the tip portion of the insertion portion 22 as a biasing part, and the leaf spring 36 is positioned between the support plate 26 and the engaging claw 30 of the insertion portion 22. The base end of the leaf spring 36 (the end on the cap body 20 side) is a base end plate 38 with a U-shaped cross-section, and the base end plate 38 is curved and protrudes toward the cap body 20 side. The portion of the leaf spring 36 on the support plate 26 side is a roughly rectangular inner plate 40, and the portion of the leaf spring 36 on the engaging claw 30 side is a roughly rectangular outer plate 42, and the base ends (ends on the cap body 20 side) of the inner plate 40 and outer plate 42 are connected to the base end plate 38. The portions of the inner plate 40 and outer plate 42 other than the tip (the end opposite to the cap body 20) extend toward the support plate 26 side and the engaging claw 30 side as they move toward the opposite side of the cap body 20, respectively. The portions of the inner plate 40 and outer plate 42 other than the tip edge are arranged substantially perpendicular to the circumferential direction of the cap body 20 and are in contact with the tip edge of the support plate 26 and the tip edge of the engaging claw 30, respectively. The leaf spring 36 is elastically deformed in the direction that brings the inner plate 40 and outer plate 42 closer together between the support plate 26 and the engaging claw 30, and the leaf spring 36 biases the engaging claw 30 toward the spoke 18 side on the outer plate 42. The tip edges of the inner plate 40 and outer plate 42 are bent toward the support plate 26 side and the engaging claw 30 side, respectively, and the tip edges of the inner plate 40 and outer plate 42 are arranged perpendicular to the front and back directions of the cap body 20.

[0038] Next, the operation of this embodiment will be explained.

[0039] In the wheel cap 10 with the above configuration, the insertion portion 22 of the cap body 20 is inserted into the insertion hole 12A between the spokes 18 of the wheel 12. Furthermore, an engaging claw 30 is provided on the spoke 18 side (one side of the insertion hole 12A) of the insertion portion 22, and the engaging claw 30 is provided with a first claw portion 32 (including a first engaging surface 32A) and a second claw portion 34 (including a second engaging surface 34A). The first engaging surface 32A of the first claw portion 32 engages with the spoke 18 (see Figure 5(A)), and the displacement of the insertion portion 22 relative to the insertion hole 12A is restricted, thereby limiting the play of the wheel cap 10 relative to the wheel 12.

[0040] When a displacement force is applied to the wheel cap 10 toward the front side, causing the insertion portion 22 to be displaced toward the front side of the wheel 12, the second engagement surface 34A of the second claw portion 34 engages with the limiting surface 18A of the spoke 18 (see Figure 5(B)), thereby restricting the detachment of the insertion portion 22 from the insertion hole 12A, and thus restricting the detachment of the wheel cap 10 from the wheel 12. When the second engagement surface 34A engages with the limiting surface 18A, it is preferable that the inclination angle of the second engagement surface 34A toward the back side of the wheel 12 with respect to the limiting surface 18A is, for example, 20° or less, and the second engagement surface 34A may also be inclined toward the front side of the wheel 12 by 0° or more with respect to the limiting surface 18A.

[0041] As described above, the insertion portion 22 is provided with a first engagement surface 32A and a second engagement surface 34A on the engagement claw 30 on the spoke 18 side. Therefore, the need to engage the support plate 26 on the opposite side of the insertion portion 22 from the spoke 18 (the other side of the insertion hole 12A) with the wheel 12 is reduced, the need to provide a claw portion on the support plate 26 is reduced, and the degree of freedom in the configuration of the support plate 26 is greatly increased. Furthermore, the need to provide a portion for engaging the support plate 26 in the insertion hole 12A is reduced, and the degree of freedom in the configuration of the wheel 12 to which the wheel cap 10 is attached is greatly increased. Moreover, the need to provide a separate member (tape, etc.) to limit the looseness of the wheel cap 10 relative to the wheel 12 is reduced, and assembly man-hours and costs can be reduced.

[0042] Furthermore, the engagement claws 30 of the insertion portion 22 (at the same insertion site) are provided with a first engagement surface 32A and a second engagement surface 34A. This simplifies the configuration of the insertion portion 22.

[0043] Furthermore, the outer plate 42 of the leaf spring 36 biases the first engagement surface 32A and the second engagement surface 34A of the engaging claw 30 toward the spoke 18. As a result, the first engagement surface 32A can effectively engage with the spoke 18, effectively limiting the displacement of the insertion portion 22 relative to the insertion hole 12A, and the second engagement surface 34A can effectively engage with the limiting surface 18A, effectively limiting the detachment of the insertion portion 22 from the insertion hole 12A.

[0044] Furthermore, the outer plate 42 of the leaf spring 36 (the same biasing portion) biases the first engagement surface 32A and the second engagement surface 34A of the engaging claw 30. This allows for a simpler configuration of the leaf spring 36.

[0045] Furthermore, in the insertion portion 22, the engaging claws 30 are integrated with the base 24 but not with the cap body 20. This allows for a smaller protrusion of the engaging claws 30 toward the wheel 12, and also suppresses the occurrence of sink marks on the front surface (design surface) of the cap body 20 due to the engaging claws 30 during the molding of the wheel cap 10.

[0046] [Second Embodiment] Figure 6 shows a perspective view of a wheel cap 50 according to a second embodiment of the present invention, as seen from the rear.

[0047] The wheel 12 in this embodiment has the same configuration as in the first embodiment described above.

[0048] The wheel cap 50 according to this embodiment has substantially the same configuration as that of the first embodiment described above, but differs in the following respects.

[0049] As shown in Figure 6, in the wheel cap 50 according to this embodiment, the portion of the engaging claw 30 other than the base end in the insertion portion 22 is divided into a first claw 30A (see Figures 7(A) and 8(B)) located radially inward of the cap body 20 and a second claw 30B (see Figures 7(A) and 8(A)) located radially outward of the cap body 20. The tip of the first claw 30A has a first claw portion 32 (including a first engaging surface 32A) integrally formed, and the tip of the second claw 30B has a second claw portion 34 (including a second engaging surface 34A) integrally formed.

[0050] The outer plate 42 of the leaf spring 36, excluding its base end, is divided into a first spring 42A located radially inside the cap body 20 and a second spring 42B located radially outside the cap body 20 (see Figure 7(B)). The first spring 42A biases the first claw 30A of the engaging claw 30 toward the spoke 18 (see Figures 7(A) and 8(B)). The second spring 42B biases the second claw 30B of the engaging claw 30 toward the spoke 18, causing it to curve, so that the portion of the second claw 30B closer to its base end than the second claw portion 34 contacts (line contact) the corner on the back side (restricting surface 18A side) of the spoke 18 and the insertion hole 12A side (see Figures 7(A) and 8(A)).

[0051] In this embodiment, the same functions and effects as in the first embodiment can be achieved, except for the functions and effects resulting from the fact that the engaging claws 30 of the insertion portion 22 and the outer plate 42 of the leaf spring 36 are not divided.

[0052] Furthermore, in the insertion portion 22, a first engagement surface 32A is provided on the first claw 30A (first insertion portion) of the engaging claw 30, and a second engagement surface 34A is provided on the second claw 30B (second insertion portion) of the engaging claw 30. As a result, the first engagement surface 32A can engage well with the limiting surface 18A of the spoke 18, and the second engagement surface 34A can also engage well with the limiting surface 18A.

[0053] Furthermore, the first spring 42A (first biasing portion) of the leaf spring 36 biases the first engagement surface 32A, and the second spring 42B (second biasing portion) of the leaf spring 36 biases the second engagement surface 34A. As a result, the leaf spring 36 can effectively bias the first engagement surface 32A and the second engagement surface 34A with the first spring 42A and the second spring 42B. Moreover, by connecting the first spring 42A and the second spring 42B in the leaf spring 36, an increase in the number of parts can be suppressed.

[0054] Furthermore, in the engaging claw 30, the second claw 30B (second engaging surface 34A) is positioned radially outward from the cap body 20 compared to the first claw 30A (first engaging surface 32A). Therefore, when a displacement force is applied to the outer circumference of the cap body 20 toward the front side, causing the cap body 20 to tilt, the torque at which the second engaging surface 34A engages with the limiting surface 18A of the spoke 18 can be increased, effectively limiting the detachment of the insertion part 22 from the insertion hole 12A, and effectively limiting the detachment of the wheel cap 50 from the wheel 12.

[0055] [Third Embodiment] Figure 9 shows a perspective view of a wheel cap 60 according to the third embodiment of the present invention, as seen from the rear.

[0056] The wheel 12 in this embodiment has the same configuration as in the first embodiment described above.

[0057] The wheel cap 60 according to this embodiment has substantially the same configuration as that of the second embodiment described above, but differs in the following respects.

[0058] As shown in Figure 9, in the wheel cap 60 according to this embodiment, the insertion portion 22 is separated into a portion that is radially inside the cap body 20 and a portion that is radially outside the cap body 20 (see Figure 10), and the engaging claws 30 of the insertion portion 22 are separated into a first claw 30A on the radially inside the cap body 20 (see Figure 8(B)) and a second claw 30B on the radially outside the cap body 20 (see Figure 8(A)).

[0059] The leaf spring 36 is separated into a portion that is radially inside the cap body 20 and a portion that is radially outside the cap body 20 (see Figure 10), and the outer plate 42 of the leaf spring 36 is separated into a first spring 42A on the radially inside the cap body 20 (see Figure 8(B)) and a second spring 42B on the radially outside the cap body 20 (see Figure 8(A)).

[0060] In this embodiment, the same functions and effects as in the second embodiment can be achieved, except for the functions and effects resulting from the connection between the first spring 42A and the second spring 42B of the leaf spring 36.

[0061] Furthermore, the first claw 30A (first insertion portion) and the second claw 30B (second insertion portion) of the engaging claw 30 of the insertion portion 22 are separated. Therefore, the relative position of the first claw 30A (first engaging surface 32A) and the second claw 30B (second engaging surface 34A) can be easily adjusted.

[0062] Furthermore, the first spring 42A (first biasing portion) and the second spring 42B (second biasing portion) of the outer plate 42 of the leaf spring 36 are separated. Therefore, the relative position of the first spring 42A and the second spring 42B can be easily adjusted.

[0063] In the second and third embodiments described above, the second claw 30B (second engagement surface 34A) of the engagement claw 30 of the insertion portion 22 is positioned radially outward from the cap body 20 than the first claw 30A (first engagement surface 32A). However, the second claw 30B (second engagement surface 34A) of the engagement claw 30 of the insertion portion 22 may also be positioned radially inward from the cap body 20 than the first claw 30A (first engagement surface 32A).

[0064] Furthermore, in the first to third embodiments described above, the cap body 20 is connected in the circumferential direction. However, the cap body 20 may be separated in the circumferential direction. In this case, the cap body 20 may be separated at the circumferential position of the exposed hole 20A. [Explanation of Symbols]

[0065] 10...Wheel cap, 12...Wheel, 12A...Insertion hole, 18...Spoke (restricting part), 18A...Restricting surface, 20...Cap body, 22...Insertion part, 30...Engaging claw (insertion part), 30A...First claw (first insertion part), 30B...Second claw (second insertion part), 32A...First engaging surface, 34A...Second engaging surface, 36...Leaf spring (biasing part), 42...Outer plate (biasing part), 42A...First spring (first biasing part), 42B...Second spring (second biasing part), 50...Wheel cap, 60...Wheel cap

Claims

1. A cap body covering a wheel, wherein a limiting portion having a limiting surface is provided on one side of the insertion hole, The cap body is provided with an insertion portion which is inserted into the insertion hole, The insertion portion has a first engagement surface provided on one side of the insertion hole, which engages with the limiting portion to restrict the displacement of the insertion portion relative to the insertion hole, The insertion portion is provided on one side of the insertion hole, and is inclined toward the restricting surface side compared to the first engaging surface, and engages with the restricting surface to restrict the insertion portion from detaching from the insertion hole, Wheel caps equipped with these features.

2. The wheel cap according to claim 1, wherein the first engaging surface and the second engaging surface are provided at the same insertion portion of the insertion portion.

3. The wheel cap according to claim 1, wherein the first engagement surface is provided at the first insertion portion of the insertion portion, and the second engagement surface is provided at the second insertion portion of the insertion portion.

4. The wheel cap according to claim 3, wherein the first insertion portion and the second insertion portion are separated.

5. The wheel cap according to claim 1, further comprising a biasing portion that biases the first engagement surface and the second engagement surface toward one side of the insertion hole.

6. The wheel cap according to claim 5, wherein the same biasing portion of the biasing part biases the first engagement surface and the second engagement surface.

7. The wheel cap according to claim 5, wherein the first biasing portion of the biasing portion biases the first engagement surface, and the second biasing portion of the biasing portion biases the second engagement surface.

8. The wheel cap according to claim 7, wherein the first biasing portion and the second biasing portion are separated.

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