Angle adjuster
By adopting a combined structure of wedge, cam ring and damping ring in the angle adjuster, the jitter problem in the existing angle adjuster is solved, and lower jitter frequency and higher tolerance capabilities are achieved.
Patent Information
- Application Number
- CN202421114562.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-05-21
AI Technical Summary
The existing angle adjuster products cannot eliminate jitter due to the existence of the commutation empty stroke, resulting in the long cycle and high cost of developing new angle adjusters.
An angle adjuster is designed, adopting a combined structure of a wedge, a cam ring and a damping ring. The wedge consists of two wedge segments, the cam ring is inserted between the narrow sides of the wedge segment, and the damping ring includes a base, a step and a connection. Through the cooperation of these components, the vibration isolation, energy absorption, gap removal and vibration reduction are achieved.
The commutation sound is eliminated through the shock isolation and energy absorption of the damping ring, the jitter is reduced through the coordination of the wedge and the convex part, the Y-direction gap is reduced through the groove part, and the tolerance of the angle adjuster is improved, thus solving the existing angle adjusting Jitter problem in the device.
Smart Images
Figure CN222479416U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a vehicle, and more particularly to an angle adjuster. Background Art
[0002] The existing angle adjuster products cannot eliminate the jitter due to the existence of commutation idle stroke. The development cycle of new angle adjuster core components is long and the development cost is high. Utility Model Content
[0003] In order to solve the above problems such as jitter in the prior art, the utility model provides an angle adjuster.
[0004] According to the utility model, the angle adjuster includes a wedge, a cam ring and a damping ring arranged between the wedge and the cam ring. The wedge is composed of two wedge-shaped segments. At least part of the cam ring is inserted into the gap between the narrow sides of the two wedge-shaped segments to drive the wedge to rotate. The damping ring includes a base and a step portion located on different planes. Two connecting portions are respectively connected to the opposite ends of the base and the step portion. The base has a convex portion. The two side surfaces of the convex portion are respectively opposite to the connecting portion and define two groove portions with the base therebetween. The two wedge-shaped segments of the wedge are respectively arranged in the two groove portions, and the convex portion is inserted between the wide sides of the two wedge-shaped segments of the wedge.
[0005] Preferably, the two connecting portions are vertically connected to opposite ends of the base portion and the step portion, respectively.
[0006] Preferably, the groove bottom of each groove portion is provided by the top surface of the base portion, and the two opposite groove walls of each groove portion are provided by the side surfaces of the connecting portion and the convex portion respectively.
[0007] Preferably, the two side surfaces of the protrusion are in contact and fit with the wide sides of the two wedge-shaped segments respectively.
[0008] Preferably, the two side surfaces of the connecting portion are in contact and cooperation with the narrow sides of the two wedge-shaped segments and the side surface of the cam ring respectively.
[0009] Preferably, bottom surfaces of the base portion and the step portion are in contact with and fit with a top surface of the cam ring.
[0010] Preferably, the damping ring is a one-piece piece.
[0011] Preferably, the damping ring is a rubber ring.
[0012] According to the recliner of the utility model, the connecting part plays the role of vibration isolation and energy absorption to eliminate the switching sound, the convex part eliminates the gap to reduce the shaking of the backrest, and the groove part can reduce the Y-direction gap to improve the tolerance of the recliner. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is an exploded view of a recliner according to a preferred embodiment of the utility model.
[0014] Figure 2 yes Figure 1 Schematic diagram of the structure of the damping ring.
[0015] Figure 3 yes Figure 1 Schematic diagram of the first assembly structure of the damping ring, wedge block and cam ring.
[0016] Figure 4 yes Figure 1 Schematic diagram of the second assembly structure of the damping ring, wedge block and cam ring. DETAILED DESCRIPTION
[0017] The preferred embodiments of the present utility model are given below in conjunction with the accompanying drawings and described in detail.
[0018] like Figure 1 As shown, the angle adjuster according to a preferred embodiment of the utility model includes a clamp 1, an outer tooth plate 2, an inner tooth plate 3, a cam 4, a wedge 5 and a cam ring 6, wherein the outer tooth plate 2 and the inner tooth plate 3 are configured to be rotatable relative to each other, the clamp 1 is used to hold the outer tooth plate 2 and the inner tooth plate 3 together, the cam 4 braked by the drive shaft is inserted into the cylinder of the outer tooth plate 2 to cooperate to drive the outer tooth plate 2, the wedge 5 is supported on the cylinder of the outer tooth plate 2 by its curved inner surface and carries the inner tooth plate 3 by its curved outer surface, the wedge 5 is composed of two wedge-shaped segments, and the cam ring 6 is fixedly mounted on the cam 4 and inserted into the gap between the narrow sides of the two wedge-shaped segments to push the wedge 5 to rotate.
[0019] The angle adjuster according to the present embodiment further includes a bushing 7 and a spring 8, wherein the bushing 7 is arranged between the curved outer surface of the wedge block 5 and the central hole of the inner tooth plate 3, and the two ends of the spring 8 are respectively connected to the mutually facing wide sides of the two wedge segments, so that the spring 8 acts on the wedge segments in the circumferential direction to force the two wedge segments to open, so that the wedge block 5 contacts the bushing 7. In this way, the wedge block 5 and the spring 8 cooperate to define an eccentric member, which is used to press the outer tooth plate 2 into the inner tooth plate 3 at the meshing position. In the present embodiment, the spring 8 is an Ω spring. In addition, the angle adjuster according to the present embodiment further includes a dust cover 9 connected and fixed to the inner tooth plate 3 and a thrust ring 10 connected and fixed to the outer tooth plate 2.
[0020] In particular, the recliner according to this embodiment further comprises a damping ring A, which is arranged between the wedge block 5 and the cam ring 6. It should be understood that the damping ring is provided by a soft material, and in this embodiment, the damping ring is a rubber ring.
[0021] like Figure 2As shown, the damping ring A is an integral piece, which includes a base 11 and a step portion 12 located on different planes, and two connecting portions 13 are respectively vertically connected to opposite ends of the base 11 and the step portion 12. The middle part of the base 11 has a convex portion 14, and two side surfaces 141 of the convex portion 14 are respectively opposite to the connecting portion 13 and define two groove portions 15 with the base 11 therebetween, the groove bottom of each groove portion 15 is provided by the top surface of the base 11, and the two opposite groove walls of each groove portion 15 are respectively provided by the side surfaces of the connecting portion 13 and the convex portion 14.
[0022] Combination Figure 3-Figure 4 The two wedge-shaped segments of the wedge block 5 are respectively arranged in the two groove portions 15 of the damping ring A, which play a role in limiting the movement of the wedge block 5 in the Y direction. The protrusion 14 is inserted between the wide sides 51 of the two wedge-shaped segments facing each other of the wedge block 5, and the two side surfaces 141 of the protrusion 14 are respectively in contact with the wide sides 51 of the two wedge-shaped segments to reduce the vibration. The two side surfaces of the connecting portion 13 are respectively in contact with the narrow sides 52 of the two wedge-shaped segments and the side surface 61 of the cam ring 6 to reduce the switching sound. The bottom surfaces of the base 11 and the step portion 12 are in contact with the top surface 62 of the cam ring 6 to facilitate installation and positioning. When the cam 4 drives the wedge block 5 to rotate, the wedge block 5 will first contact the damping ring A, and then drive the outer tooth plate 2 to perform eccentric operation.
[0023] Specifically, through the connection portion 13 between the narrow side 52 of the two wedge-shaped segments and the side surface 61 of the cam ring 6, the wedge block 5 first contacts the damping ring A during startup, which plays a role in shock isolation and energy absorption, so that there is no sound when the wedge block 5 hits it, that is, the switching sound is eliminated. Because the spring 8 does not hold the wedge block 5 tightly, the wedge block 5 will move when it rotates. The convex portion 14 between the wide sides 51 of the two wedge-shaped segments can eliminate the gap, so that the frequency of shaking is reduced, thereby reducing the shaking of the backrest. In addition, due to the assembly tolerance of the skeleton and the existence of the Y-direction gap of the core component, the wedge block 5 will twist. The groove portion 15 provided by the base 11 can reduce the Y-direction gap, thereby reducing the risk of shaking and abnormal noise and improving the tolerance capacity of the adjuster.
[0024] The above is only a preferred embodiment of the utility model, and is not intended to limit the scope of the utility model. The above embodiments of the utility model can also be modified in various ways. That is, all simple, equivalent changes and modifications made according to the claims and the contents of the specification of the utility model application fall within the scope of protection of the claims of the utility model patent. The conventional technical contents are not described in detail in the utility model.
Claims
1. A recliner, characterized in that: The angle adjuster includes a wedge, a cam ring and a damping ring arranged between the wedge and the cam ring. The wedge is composed of two wedge-shaped segments. At least part of the cam ring is inserted into the gap between the narrow sides of the two wedge-shaped segments to push the wedge to rotate. The damping ring includes a base and a step portion located on different planes. Two connecting portions are respectively connected to the opposite ends of the base and the step portion. The base has a convex portion. The two side surfaces of the convex portion are respectively opposite to the connecting portion and define two groove portions with the base therebetween. The two wedge-shaped segments of the wedge are respectively arranged in the two groove portions, and the convex portion is inserted between the wide sides of the two wedge-shaped segments of the wedge.
2. The angle adjuster according to claim 1, characterized in that: The two connecting parts are respectively vertically connected to the opposite ends of the base part and the step part.
3. The angle adjuster according to claim 1, characterized in that: The groove bottom of each groove portion is provided by the top surface of the base portion, and the two opposite groove walls of each groove portion are provided by the side surfaces of the connecting portion and the convex portion respectively.
4. The angle adjuster according to claim 3, characterized in that: The two side surfaces of the convex portion are respectively in contact with and matched with the wide sides of the two wedge-shaped segments.
5. The angle adjuster according to claim 3, characterized in that: The two side surfaces of the connecting portion are respectively in contact with and matched with the narrow sides of the two wedge-shaped segments and the side surface of the cam ring.
6. The angle adjuster according to claim 1, characterized in that: The bottom surfaces of the base portion and the step portion are in contact with and fit with the top surface of the cam ring.
7. The angle adjuster according to claim 1, characterized in that: The damping ring is a one-piece piece.
8. The angle adjuster according to claim 1, characterized in that: The damping ring is a rubber ring.