reset cam
By introducing reinforcing ribs and optimizing the cam wall structure in the reset cam, the problems of insufficient strength and excessive noise caused by the contact between the turn signal switch and the reset cam were solved, thus improving the strength and reducing the noise of the reset cam.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- FURUKAWA ELECTRIC CO LTD
- Filing Date
- 2021-02-03
- Publication Date
- 2026-05-12
AI Technical Summary
In the prior art, the contact between the turn signal switch and the reset cam results in insufficient strength and excessive noise.
Design a reset cam that includes an annular component, a cam wall, and reinforcing ribs. The structural design of the reinforcing ribs ensures the connection strength between the cam wall and the annular component, and optimizes the length and shape of the cam wall to reduce noise echo.
This design improves the strength of the reset cam and effectively reduces noise, ensuring smooth operation of the turn signal switch and a superior driving experience.
Smart Images
Figure CN115151446B_ABST
Abstract
Description
Technical Field
[0001] The technology disclosed in this application relates to a reset cam. Background Technology
[0002] The reset cam used in a rotary connector device is described in Patent Documents 1 and 2.
[0003] Existing technical documents
[0004] Patent documents
[0005] Patent Document 1: Japanese Patent No. 5138022
[0006] Patent Document 2: Japanese Patent Application Publication No. 2010-143460 Summary of the Invention
[0007] The problem that the invention aims to solve
[0008] When the turn signal switch is operated from the neutral position to the activated position, the ratchet of the turn signal switch contacts the reset cam. Therefore, it is preferable to ensure the strength of the reset cam. On the other hand, it is preferable to reduce the noise generated by the contact between the turn signal switch and the reset cam.
[0009] The technical problem disclosed in this application is to ensure the strength of the reset cam and reduce the noise caused by the contact between the turn signal switch and the reset cam.
[0010] Methods for solving problems
[0011] The first feature of the reset cam includes an annular component, a cam wall, and at least one reinforcing rib. The annular component is a component capable of rotating integrally with the steering shaft about a rotation axis, and includes an outer periphery, an inner periphery, and a first surface facing an axial direction parallel to the rotation axis. The cam wall is configured to reset the turn signal switch from an actuated position to a neutral position, and extends axially from the outer periphery and circumferentially along the outer periphery. At least one reinforcing rib extends from the cam wall toward the inner periphery and connects the cam wall to the annular component. The cam wall has a first axial length defined from the first surface. The inner periphery has a second axial length defined from the first surface. The second axial length is shorter than the first axial length.
[0012] In the reset cam of the first feature, since the second axial length is shorter than the first axial length, it is possible to suppress the reverberation of noise generated by the contact between the turn signal switch and the cam wall on the radially inner side of the cam wall. Furthermore, the connection strength between the annular component and the cam wall can be ensured by at least one reinforcing rib. Therefore, the strength of the reset cam can be ensured, and the noise generated by the contact between the turn signal switch and the reset cam can be reduced.
[0013] Regarding the reset cam of the second feature, in the reset cam of the first feature, the annular component does not have a portion protruding axially from the first surface in its inner circumference.
[0014] In the reset cam of the second feature, the reliably suppressed noise generated by the contact between the turn signal switch and the cam wall echoing radially inside the cam wall can be effectively suppressed.
[0015] Regarding the reset cam of the third feature, in the reset cam of the first or second feature, at least one reinforcing rib extends from the cam wall toward the inner periphery and connects the cam wall to the first surface.
[0016] In the reset cam of the third feature, the connection strength between the annular component and the cam wall can be improved.
[0017] Regarding the reset cam of the fourth feature, in the reset cam of any one of the first to third features, at least one reinforcing rib includes an inclined surface that extends from the cam wall toward the first surface and is inclined relative to the axis of rotation.
[0018] In the reset cam of the fourth feature, the connection strength between the annular component and the cam wall can be improved, and the noise generated by the contact between the turn signal switch and the cam wall can be suppressed from echoing radially inside the cam wall.
[0019] Regarding the reset cam of feature 5, in the reset cam of any one of features 1 to 4, at least one reinforcing rib has a third axial length defined from the first face in the axial direction. The second axial length is shorter than the third axial length.
[0020] In the reset cam of the fifth feature, it is possible to reliably suppress the echoing of noise generated by the contact between the turn signal switch and the cam wall on the radially inner side of the cam wall.
[0021] Regarding the reset cam of feature 6, in the reset cam of feature 5, the third axial length is less than or equal to the first axial length.
[0022] In the reset cam of the sixth feature, noise generation can be suppressed and the reset cam can be made lightweight.
[0023] Regarding the reset cam of feature 7, in the reset cam of feature 5 or feature 6, at least one reinforcing rib has a radial length defined from the cam wall in the radial direction. The radial length is shorter than the axial length of feature 3.
[0024] In the reset cam of the 7th feature, noise generation can be suppressed and the reset cam can be made lightweight.
[0025] Regarding the reset cam of feature 8, in the reset cam of any one of features 1 to 7, at least one reinforcing rib includes multiple reinforcing ribs.
[0026] In the reset cam of feature 8, the connection strength between the annular component and the cam wall can be reliably improved, and the noise generated by the contact between the turn signal switch and the cam wall can be suppressed from echoing radially inside the cam wall.
[0027] Regarding the reset cam of feature 9, in the reset cam of any one of features 1 to 8, the cam wall includes a first circumferential end and a second circumferential end. The cam wall extends circumferentially from the first circumferential end to the second circumferential end.
[0028] In the reset cam of feature 9, the strength of the cam wall is easily ensured.
[0029] Regarding the reset cam of feature 10, in the reset cam of any one of features 1 to 9, at least one reinforcing rib includes: a first reinforcing rib connected to a first circumferential end; and a second reinforcing rib connected to a second circumferential end.
[0030] In the reset cam of feature 10, the strength of the cam wall can be improved.
[0031] Regarding the reset cam of feature 11, in the reset cam of feature 10, at least one reinforcing rib includes an intermediate reinforcing rib disposed between the first reinforcing rib and the second reinforcing rib. The thickness of at least one of the first reinforcing rib and the second reinforcing rib is greater than the thickness of the intermediate reinforcing rib.
[0032] In the reset cam of feature 11, at least one of the first circumferential end and the second circumferential end of the cam wall can be efficiently strengthened by at least one of the first reinforcing rib and the second reinforcing rib, and furthermore, the middle portion of the cam wall can be strengthened by the intermediate reinforcing rib. That is, the strength of the cam wall can be efficiently improved by the first reinforcing rib, the second reinforcing rib, and the intermediate reinforcing rib.
[0033] Invention Effects
[0034] According to the technology disclosed in this application, the strength of the reset cam can be ensured, and the noise generated by the contact between the turn signal switch and the reset cam can be reduced. Attached Figure Description
[0035] Figure 1 This is a perspective view of a rotary connector device including the reset cam of this embodiment.
[0036] Figure 2 This is a 3D view of the reset cam.
[0037] Figure 3yes Figure 8 A sectional view of the reset cam in line III-III.
[0038] Figure 4 This is a cross-sectional view of the reset cam in a modified example.
[0039] Figure 5 yes Figure 8 A cross-sectional view of the reset cam in line VV.
[0040] Figure 6 yes Figure 8 A partial sectional view of the reset cam shown.
[0041] Figure 7 This is a 3D view of the reset cam.
[0042] Figure 8 This is a plan view of the reset cam.
[0043] Figure 9 yes Figure 8 A cross-sectional view of the reset cam in line VIII-VIII.
[0044] Figure 10 This is a schematic diagram of the reset cam and turn signal switch (neutral position).
[0045] Figure 11 This is a schematic diagram (operating position) of the reset cam and turn signal switch. Detailed Implementation
[0046] Hereinafter, the embodiments will be described with reference to the accompanying drawings. In the drawings, the same reference numerals indicate corresponding or identical structures.
[0047] like Figure 1 As shown, the rotary connector device 1 includes a rotating body 10, a stator 20, an electrical connector 30, and a reset cam 40. The rotating body 10 is configured to rotate relative to the stator 20 about a rotation axis A1. In this embodiment, for example, the stator 20 is configured to be fixed to the vehicle body, and the rotating body 10 is configured to be connected to the steering shaft of the steering wheel. The electrical connector 30 and the reset cam 40 are mounted on the rotating body 10. The rotating body 10, the electrical connector 30, and the reset cam 40 are capable of rotating integrally with the steering wheel about the rotation axis A1. The electrical connector 30 is configured, for example, to be electrically connected to a steering-side connector. The steering-side connector is electrically connected to circuits such as steering wheel switches and airbag devices.
[0048] like Figure 2As shown, the reset cam 40 has an annular component 41, a cam wall 42, and at least one reinforcing rib 43. The annular component 41 is rotatable about the rotation axis A1 integrally with the steering shaft. The annular component 41 includes an outer peripheral portion 44, an inner peripheral portion 45, and a first surface 46. The first surface 46 faces an axial direction D1 parallel to the rotation axis A1.
[0049] The outer peripheral portion 44 forms the outermost periphery of the annular member 41. The inner peripheral portion 45 forms the innermost periphery of the annular member 41. The annular member 41 includes an opening 47. The inner peripheral portion 45 defines at least a portion of the opening 47. When the rotary connector device 1 is mounted on the vehicle, the steering shaft is inserted into the opening 47.
[0050] Cam wall 42 is configured to enable turn signal switch 150 (see reference) Figure 10 From position L or R (refer to) Figure 10 Towards neutral position N (reference) Figure 10 Reset. Cam wall 42 extends from outer peripheral portion 44 in the axial direction D1 and extends along outer peripheral portion 44 in the circumferential direction D2. Cam wall 42 includes a first circumferential end 42A and a second circumferential end 42B. Cam wall 42 extends from the first circumferential end 42A in the circumferential direction D2 to the second circumferential end 42B.
[0051] At least one reinforcing rib 43 extends from the cam wall 42 toward the inner periphery 45, connecting the cam wall 42 to the annular member 41. At least one reinforcing rib 43 extends from the cam wall 42 toward the inner periphery 45, connecting the cam wall 42 to the first surface 46.
[0052] At least one reinforcing rib 43 comprises a plurality of reinforcing ribs 43. The at least one reinforcing rib 43 comprises: a first reinforcing rib 43A connected to a first circumferential end 42A; and a second reinforcing rib 43B connected to a second circumferential end 42B. The at least one reinforcing rib 43 comprises at least one intermediate reinforcing rib 43C. The at least one intermediate reinforcing rib 43C comprises a plurality of intermediate reinforcing ribs 43C.
[0053] At least one reinforcing rib 43 includes an inclined surface 43D that extends from the cam wall 42 toward the first surface 46 and is inclined relative to the rotation axis A1. A first reinforcing rib 43A includes an inclined surface 43D that extends from the cam wall 42 toward the first surface 46 and is inclined relative to the rotation axis A1. A second reinforcing rib 43B includes an inclined surface 43D that extends from the cam wall 42 toward the first surface 46 and is inclined relative to the rotation axis A1. An intermediate reinforcing rib 43C includes an inclined surface 43D that extends from the cam wall 42 toward the first surface 46 and is inclined relative to the rotation axis A1.
[0054] like Figure 3As shown, the cam wall 42 has a first axial length L1 defined from the first surface 46 in the axial direction D1. The inner circumference 45 has a second axial length L2 defined from the first surface 46 in the axial direction D1. At least one reinforcing rib 43 has a third axial length L3 defined from the first surface 46 in the axial direction D1. The second axial length L2 is shorter than the first axial length L1. The second axial length L2 is shorter than the third axial length L3. The third axial length L3 is less than or equal to the first axial length L1. The third axial length L3 is equal to the first axial length L1. However, the third axial length L3 may also be shorter than the first axial length L1.
[0055] In this embodiment, the second axial length L2 is 50% or less of the first axial length L1. The second axial length L2 is 25% or less of the first axial length L1. The second axial length L2 is 50% or less of the third axial length L3. The third axial length L3 is 25% or less of the first axial length L1. The annular member 41 does not have a portion protruding axially from the first surface 46 towards D1 in its inner peripheral portion 45. That is, in this embodiment, the second axial length L2 is zero. However, as... Figure 4 As shown, the second axial length L2 can also be longer than zero. In this case, the inner circumference 45 includes a protrusion 45A extending from the first surface 46 in the axial direction D1.
[0056] like Figure 5 As shown, the cam wall 42 includes an outer peripheral surface 42C and an inner peripheral surface 42D. The outer peripheral surface 42C is capable of contacting the steering rod. The inner peripheral surface 42D is located on the back side of the outer peripheral surface 42C. A reinforcing rib 43 extends radially inward from the inner peripheral surface 42D. The reinforcing rib 43 extends axially D1 from the second annular plate 52. The reinforcing rib 43 connects the cam wall 42, the second annular plate 52, and the intermediate portion 53.
[0057] At least one reinforcing rib 43 has a radial length L4 defined radially from the cam wall 42. The radial length L4 of the reinforcing rib 43 is defined radially inward from the inner circumferential surface 42D of the cam wall 42. In this embodiment, the radial length L4 is shorter than the third axial length L3. However, the radial length L4 may also be greater than the third axial length L3.
[0058] like Figure 6 As shown, the outer peripheral surface 42C of the cam wall 42 includes a ratchet 120 for the turn signal switch 150 (see reference). Figure 10 The contact surface 42E is in contact with the cam wall 42, which is the axial end 42F furthest from the outer periphery 44 along the axial direction D1. The contact surface 42E is disposed between the first surface 46 and the axial end 42F along the axial direction D1.
[0059] like Figure 3As shown, the annular component 41 includes a second surface 49 facing the axial direction D1. The second surface 49 is disposed on the back side of the first surface 46. Figure 7 As shown, the reset cam 40 has a plurality of connecting portions 50. The plurality of connecting portions 50 extend from the second surface 49 in the axial direction D1. The connecting portions 50 extend from the inner peripheral portion 45 in the axial direction D1. The connecting portions 50 are configured to connect with the rotating body 10.
[0060] like Figure 8 As shown, in this embodiment, the reset cam 40 has a shape symmetrical with respect to the reference plane RP. The reference plane RP is an imaginary plane containing the rotation axis A1. The reset cam 40 has a cam wall 142 and at least one reinforcing rib 143. The cam wall 142 has a shape symmetrical with respect to the reference plane RP and has substantially the same construction as the cam wall 42. The at least one reinforcing rib 143 comprises a plurality of reinforcing ribs 143. The plurality of reinforcing ribs 143 have shapes symmetrical with respect to the reference plane RP and have substantially the same construction as the plurality of reinforcing ribs 43. However, the reset cam 40 may also have a shape asymmetrical with respect to the reference plane RP.
[0061] An intermediate reinforcing rib 43C is disposed between the first reinforcing rib 43A and the second reinforcing rib 43B. At least one of the first reinforcing rib 43A and the second reinforcing rib 43B has a thickness greater than the intermediate reinforcing rib 43C. In this embodiment, the thicknesses of the first reinforcing rib 43A and the second reinforcing rib 43B are greater than the thickness of the intermediate reinforcing rib 43C. However, the thickness of at least one of the first reinforcing rib 43A and the second reinforcing rib 43B may also be equal to or less than the thickness of the intermediate reinforcing rib 43C.
[0062] like Figure 3 As shown, the annular component 41 includes a first annular plate 51, a second annular plate 52, and an intermediate portion 53. The first annular plate 51 includes an inner peripheral portion 45, a first surface 46, and a second surface 49. The second annular plate 52 includes an outer peripheral portion 44. A connecting portion 50 extends from the first annular plate 51 in the axial direction D1. The second annular plate 52 is positioned offset from the first annular plate 51 in the axial direction D1. The outer diameter of the second annular plate 52 is larger than the outer diameter of the first annular plate 51. The intermediate portion 53 extends from the first annular plate 51 to the second annular plate 52 in the axial direction D1. The intermediate portion 53 extends from the second surface 49 of the first annular plate 51 to the second annular plate 52 in the axial direction D1. The intermediate portion 53 connects the first annular plate 51 and the second annular plate 52. Cam walls 42 and 142 extend from the outer peripheral portion 44 (in this embodiment, the outer periphery of the second annular plate 52) across the first annular plate 51 in the axial direction D1. Cam walls 42 and 142 are disposed radially outward of the intermediate portion 53.
[0063] like Figure 8 As shown, the annular component 41 includes a first outer peripheral wall 54 and a second outer peripheral wall 55. The first outer peripheral wall 54 extends from the cam wall 42 to the cam wall 142 in the circumferential direction D2. The first outer peripheral wall 54 connects the cam wall 42 and the cam wall 142. The second outer peripheral wall 55 extends from the cam wall 42 to the cam wall 142 in the circumferential direction D2. The second outer peripheral wall 55 connects the cam wall 42 and the cam wall 142.
[0064] The annular component 41 includes a plurality of first ribs 56 and a plurality of second ribs 57. The first ribs 56 connect the first outer peripheral wall 54 to the second annular plate 52 and the intermediate portion 53. The second ribs 57 connect the second outer peripheral wall 55 to the second annular plate 52 and the intermediate portion 53.
[0065] like Figure 9 As shown, the first outer peripheral wall 54 and the second outer peripheral wall 55 extend from the outer peripheral portion 44 (in this embodiment, the outer periphery of the second annular plate 52) in the axial direction D1. The first rib 56 extends from the first outer peripheral wall 54 to the middle portion 53. The second rib 57 extends from the second outer peripheral wall 55 to the middle portion 53.
[0066] like Figure 10 As shown, the turn signal switch 150 is disposed radially outward of the reset cam 40. The turn signal switch 150 includes a ratchet 120, a ratchet spring 122, a bracket 130, a return spring 135, a turn lever 140, and a housing 151. The housing 151 is fixed to the vehicle body. The ratchet 120, ratchet spring 122, bracket 130, and return spring 135 are disposed within the housing 151. The ratchet 120 is connected to the housing 151 in a movement direction D3 relative to the housing 151. The ratchet 120 is configured to contact the cam wall 42 of the reset cam 40. The ratchet spring 122 is connected to the ratchet 120 and the housing 151 in a manner that applies force to the ratchet 120 toward the cam wall 42. The bracket 130 is rotatably connected to the housing 151 via a bracket shaft 131. The bracket 130 is rotatable relative to the housing 151 in a first direction D41 and a second direction D42. The steering lever 140 is fixed to the bracket 130 and can rotate relative to the housing 151 together with the bracket 130. The steering lever 140 and the bracket 130 can rotate relative to the housing 151 from the neutral position N to the operating position L or R. The operating position L can also be referred to as the left turn indication position L. The operating position R can also be referred to as the right turn indication position R. When the steering lever 140 is not operated, the return spring 135 holds the bracket 130 and the steering lever 140 in the neutral position N.
[0067] Ratchet 120 includes a ratchet shaft 121, a first ratchet end 124, and a second ratchet end 125. Backplate 134 includes a guide groove 152A. The ratchet shaft 121 is disposed within the guide groove 152A. The ratchet 120 is guided by the guide groove 152A in the movement direction D3. The ratchet 120 is rotatable relative to housing 151 about the ratchet shaft 121. The first ratchet end 124 is capable of contacting the cam wall 42 of the reset cam 40. The ratchet shaft 121 is disposed between the first ratchet end 124 and the second ratchet end 125.
[0068] The bracket 130 includes a back plate 134. The back plate 134 is movable relative to the housing 151 in a first movement direction C1 and a second movement direction C2. The back plate 134 includes a first engaging portion 132, a second engaging portion 133, and a guide portion 136. A second ratchet end 125 is disposed between the first engaging portion 132 and the second engaging portion 133. The guide portion 136 is configured to guide the ratchet 120 in the movement direction D3. The guide portion 136 is always in contact with the ratchet shaft 121 by the force of the ratchet spring 122. Therefore, the guide portion 136 is configured to maintain the position of the ratchet 120.
[0069] For example, when the steering lever 140 and bracket 130 are in the neutral position N, the ratchet shaft 121 of the ratchet 120 contacts the front end of the guide portion 136. Thus, the guide portion 136 holds the ratchet 120 in the normal position P1. When the ratchet 120 is in the normal position P1, the first ratchet end 124 of the ratchet 120 is away from the reset cam 40. Furthermore, when the steering lever 140 and bracket 130 are in the neutral position N, the second ratchet end 125 of the ratchet 120 is positioned between the first engaging portion 132 and the second engaging portion 133.
[0070] like Figure 11 As shown, when the steering lever 140 is operated from the neutral position N towards the first direction D41 or the second direction D42, the ratchet shaft 121 moves towards the first guide recess 137A or the second guide recess 137B of the guide portion 136, and the steering lever 140 remains in the operating position L or R. At this time, the ratchet 120 moves towards the contact position P2, which allows it to contact the cam wall 42 of the reset cam 40, and the first ratchet end 124 collides with the cam wall 42 due to the force of the ratchet spring 122. Noise is generated due to this collision.
[0071] The reset cam 40 of this embodiment has an annular component 41, a cam wall 42, and at least one reinforcing rib 43. The annular component 41 is a component that can rotate integrally with the steering shaft about a rotation axis A1, and includes an outer peripheral portion 44, an inner peripheral portion 45, and a first surface 46 facing an axial direction D1 parallel to the rotation axis A1. The cam wall 42 is configured to reset the turn signal switch 150 from an operating position L or R to a neutral position N, and the cam wall 42 extends from the outer peripheral portion 44 in the axial direction D1 and extends along the outer peripheral portion 44 in the circumferential direction D2. At least one reinforcing rib 43 extends from the cam wall 42 toward the inner peripheral portion 45 and connects the cam wall 42 to the annular component 41. The cam wall 42 has a first axial length L1 defined from the first surface 46 in the axial direction D1. The inner peripheral portion 45 has a second axial length L2 defined from the first surface 46 in the axial direction D1. The second axial length L2 is shorter than the first axial length L1.
[0072] Japanese Patent No. 5138022 Figures 2-6 In the described reset cam structure 10, since the height of the inner sidewall 13b is equal to the height of the outer peripheral cam wall 13a, the noise generated by the contact between the ratchet 20 and the outer peripheral cam wall 13a echoes in the cavity between the outer peripheral cam wall 13a and the inner sidewall 13b, which becomes a harsh and resonant noise for the driver.
[0073] However, in the reset cam 40 of this application, since the second axial length L2 is shorter than the first axial length L1, it is possible to suppress the reverberation of noise generated by the contact between the turn signal switch 150 and the cam wall 42 in the radially inner side of the cam wall 42. On the other hand, the connection strength between the annular member 41 and the cam wall 42 can be ensured by at least one reinforcing rib 43. Thus, the strength of the reset cam 40 can be ensured, and the noise generated by the contact between the turn signal switch 150 and the reset cam 40 can be reduced.
[0074] The annular component 41 does not have a portion protruding from the first surface 46 in the axial direction D1 in the inner peripheral portion 45. As a result, it is possible to reliably suppress the echoing of noise generated by the contact between the turn signal switch 150 and the cam wall 42 on the radially inner side of the cam wall 42.
[0075] At least one reinforcing rib 43 extends from the cam wall 42 toward the inner periphery 45 and connects the cam wall 42 to the first surface 46. This improves the connection strength between the annular member 41 and the cam wall 42.
[0076] At least one reinforcing rib 43 includes an inclined surface 43D that extends from the cam wall 42 toward the first surface 46 and is inclined relative to the axis of rotation A1. This improves the connection strength between the annular member 41 and the cam wall 42 and suppresses the reverberation of noise generated by the contact between the turn signal switch 150 and the cam wall 42 in the radially inner side of the cam wall 42.
[0077] At least one reinforcing rib 43 has a third axial length L3 defined from the first face 46 in the axial direction D1. The second axial length L2 is shorter than the third axial length L3. As a result, it is possible to reliably suppress the echoing of noise generated by the contact between the turn signal switch 150 and the cam wall 42 on the radially inner side of the cam wall 42.
[0078] The third axial length L3 is less than or equal to the first axial length L1. This helps to suppress noise generation and allows for a lighter reset cam 40.
[0079] At least one reinforcing rib 43 has a radial length L4 defined from the cam wall 42 in the radial direction. The radial length L4 is shorter than the third axial length L3. As a result, noise generation can be suppressed, and the reset cam 40 can be made lighter.
[0080] At least one reinforcing rib 43 includes multiple reinforcing ribs 43. This reliably improves the connection strength between the annular component 41 and the cam wall 42, and suppresses the echoing of noise generated by the contact between the turn signal switch 150 and the cam wall 42 on the radially inner side of the cam wall 42.
[0081] The cam wall 42 includes a first circumferential end 42A and a second circumferential end 42B. The cam wall 42 extends from the first circumferential end 42A to the second circumferential end 42B in the circumferential direction D2. This easily ensures the strength of the cam wall 42.
[0082] At least one reinforcing rib 43 includes: a first reinforcing rib 43A connected to a first circumferential end 42A; and a second reinforcing rib 43B connected to a second circumferential end 42B. This improves the strength of the cam wall 42.
[0083] At least one reinforcing rib 43 includes an intermediate reinforcing rib 43C disposed between the first reinforcing rib 43A and the second reinforcing rib 43B. The thickness of at least one of the first reinforcing rib 43A and the second reinforcing rib 43B is greater than the thickness of the intermediate reinforcing rib 43C. Therefore, at least one of the first circumferential end 42A and the second circumferential end 42B of the cam wall 42 can be efficiently reinforced by at least one of the first reinforcing rib 43A and the second reinforcing rib 43B, and further, the middle portion of the cam wall 42 can be reinforced by the intermediate reinforcing rib 43C. That is, the strength of the cam wall 42 can be efficiently improved by the first reinforcing rib 43A, the second reinforcing rib 43B, and the intermediate reinforcing rib 43C.
[0084] Furthermore, in this application, "having" and its derivatives are non-restrictive terms describing the existence of a constituent element, and do not exclude the existence of other constituent elements not described. This also applies to "possessing," "containing," and their derivatives.
[0085] In this application, ordinal numbers such as "first" and "second" are merely terms used to identify the structure and do not have any other meaning (such as a specific order). For example, the existence of "first element" does not imply the existence of "second element," and conversely, the existence of "second element" does not imply the existence of "first element."
[0086] Furthermore, the terms "parallel," "perpendicular," and "consistent" in this disclosure should not be interpreted strictly, but rather include the meanings of "substantially parallel," "substantially perpendicular," and "substantially consistent," respectively. Additionally, the interpretations of other configurations are also not to be interpreted strictly.
[0087] Furthermore, the expression "at least one of A and B" in this disclosure includes, for example, (1) only A, (2) only B, and (3) both A and B. The expression "at least one of A, B, and C" includes, for example, (1) only A, (2) only B, (3) only C, (4) A and B, (5) B and C, (6) A and C, and (7) all three of A, B, and C. In this disclosure, the expression "at least one of A and B" is not interpreted as "at least one of A and at least one of B".
[0088] Based on the above disclosure, it is clear that various modifications and alterations can be made to this invention. Therefore, without departing from the spirit of this invention, this invention can also be implemented using methods different from the specific disclosures in this application.
[0089] Label Explanation
[0090] 1: Rotary connector assembly; 10: Rotating body; 20: Stator; 30: Electrical connector; 40: Reset cam; 41: Annular component; 42, 142: Cam wall; 42A: First circumferential end; 42B: Second circumferential end; 42C: Outer circumferential surface; 42D: Inner circumferential surface; 43, 143: Reinforcing rib; 43A: First reinforcing rib; 43B: Second reinforcing rib; 43C: Intermediate reinforcing rib; 43D: Inclined surface; 44: Outer circumferential part; 45: Inner circumferential part; 46: First surface; 120: Ratchet; 140: Steering rod; 150: Turn signal switch; A1: Rotation axis; D1: Axial; D2: Circumferential; L: Operating position; N: Neutral position; R: Operating position.
Claims
1. A reset cam, comprising: The annular component, which is a component capable of rotating integrally with the steering shaft about a rotation axis, includes an outer peripheral portion, an inner peripheral portion, and a first surface facing an axis parallel to the rotation axis; A cam wall is configured to reset the turn signal switch from the active position to the neutral position, and the cam wall extends axially from the outer periphery and circumferentially along the outer periphery. as well as At least one reinforcing rib extends from the cam wall toward the inner periphery and connects the cam wall to the annular member. The cam wall has a first axial length defined from the first surface in the axial direction. The inner circumference has a second axial length defined from the first surface in the axial direction. The second axial length is shorter than the first axial length. The cam wall extends axially from the outer periphery toward the side where the inner periphery is located, past the inner periphery.
2. The reset cam according to claim 1, wherein, The annular component does not have a portion protruding from the first surface in the axial direction in its inner circumference.
3. The reset cam according to claim 1 or 2, wherein, The at least one reinforcing rib extends from the cam wall toward the inner periphery and connects the cam wall to the first surface.
4. The reset cam according to claim 1, wherein, The at least one reinforcing rib includes an inclined surface that extends from the cam wall toward the first surface and is inclined relative to the axis of rotation.
5. The reset cam according to claim 1, wherein, The at least one reinforcing rib has a third axial length defined from the first surface in the axial direction. The second axial length is shorter than the third axial length.
6. The reset cam according to claim 5, wherein, The third axial length is less than or equal to the first axial length.
7. The reset cam according to claim 5, wherein, The at least one reinforcing rib has a radial length defined from the cam wall in the radial direction. The radial length is shorter than the third axial length.
8. The reset cam according to claim 1, wherein, The at least one reinforcing rib comprises multiple reinforcing ribs.
9. The reset cam according to claim 1, wherein, The cam wall includes a first circumferential end and a second circumferential end. The cam wall extends from the first circumferential end to the second circumferential end in the circumferential direction.
10. The reset cam according to claim 9, wherein, The at least one reinforcing rib includes: A first reinforcing rib, which is connected to the first circumferential end; and The second reinforcing rib is connected to the second circumferential end.
11. The reset cam according to claim 10, wherein, The at least one reinforcing rib includes an intermediate reinforcing rib disposed between the first reinforcing rib and the second reinforcing rib. The thickness of at least one of the first reinforcing rib and the second reinforcing rib is greater than the thickness of the intermediate reinforcing rib.
12. The reset cam according to claim 1, wherein, The annular component includes a first annular plate, a second annular plate, and a middle portion. The first annular plate includes the inner peripheral portion, the first surface, and the second surface. The second annular plate includes the outer peripheral portion. The connecting portion extends from the first annular plate in the axial direction. The second annular plate is positioned at a position offset from the first annular plate in the axial direction. The outer diameter of the second annular plate is larger than the outer diameter of the first annular plate. The intermediate portion extends from the first annular plate to the second annular plate in the axial direction. The intermediate portion extends axially from the second surface of the first annular plate to the second annular plate. The cam wall extends axially from the outer periphery past the first annular plate toward the side where the first annular plate is located. The cam wall is positioned radially outward from the middle section.