One-way damping system for armrest box

By combining the design of one-way bearings and damping springs, the problem of large torque difference in the torque component when rotating counterclockwise and clockwise is solved, achieving smooth and seamless clockwise opening and stable counterclockwise closing, thus improving the user experience.

CN224514995UActive Publication Date: 2026-07-17HAISIKE TECH (SHENZHEN) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HAISIKE TECH (SHENZHEN) CO LTD
Filing Date
2025-07-07
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The existing torque components provide the same rotational torque when rotating counterclockwise and clockwise, but the large difference in gravity affects the user experience.

Method used

The design employs a synergistic combination of a one-way bearing and a damping spring. When rotated clockwise, the one-way bearing releases the rotational degree of freedom, while when rotated counterclockwise, the damping spring provides a constant damping force to ensure consistent torque.

Benefits of technology

It achieves smooth and fluid opening clockwise and stable closing counterclockwise, avoiding the risk of pinching fingers, and can be hovered at any angle, improving the user experience.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224514995U_ABST
    Figure CN224514995U_ABST
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Abstract

The utility model relates to the technical field of automotive interior, and disclose a handrail box one -way damping system, including support plate, axle, a plurality of damping spring, rivet, sleeve, clasp and one -way bearing, the rivet one end penetrates a plurality of damping spring and support plate in proper order, the damping spring is sleeved at the outside of sleeve, the sleeve is sleeved at the outside of one -way bearing, the sleeve is sleeved at the outside of axle, the axle one end passes through support plate and one -way bearing in proper order to be equipped with clasp, this handrail box one -way damping system, when clockwise opening, system releases the rotation degree of freedom with one -way bearing, makes it only suffer gravity, guarantees the smooth and smooth of opening operation, when being in the stationary state or vehicle driving jolt, one -way bearing automatic locking, prevent accidental overturning closure or sway. And in the anticlockwise closing process, one -way bearing fixed pivot, provide constant damping force by damping spring, ensure the torsional force value when closing and opening are consistent.
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Claims

1. A one-way damping system for an armrest box comprising a support plate (10), a shaft (20), a plurality of damping springs (30), a rivet (40), a sleeve (50), a circlip (60) and a one-way bearing (70), characterized in that: One end of the rivet (40) passes through multiple damping springs (30) and support plate (10) in sequence. The damping springs (30) are sleeved on the outside of the sleeve (50). The sleeve (50) is sleeved on the outside of the one-way bearing (70). The sleeve (50) is sleeved on the outside of the shaft (20). One end of the shaft (20) passes through the support plate (10) and one-way bearing (70) in sequence and is fitted with a snap ring (60).

2. A one-way damping system for an armrest box as claimed in claim 1, characterized in that: The support plate (10) includes a plate body (10-4), the outer surface of the plate body (10-4) is provided with a notch (10-5), the outer surface of the plate body (10-4) is provided with a rivet mounting hole (10-2), the outer surface of the plate body (10-4) is provided with a support plate mounting hole (10-3), and the outer surface of the plate body (10-4) is provided with a sleeve mounting hole (10-1).

3. A one-way damping system for an armrest box as defined in claim 2, wherein: The shaft (20) includes a shaft friction surface (20-1), one end of which is fitted with a shaft cap (20-4). The outer surface of the shaft friction surface (20-1) is provided with a large-diameter tube surface (20-7). An annular protrusion (20-2) is provided between the large-diameter tube surface (20-7) and the shaft friction surface (20-1). The outer surface of the large-diameter tube surface (20-7) is provided with knurling (20-3). The outer side of the knurling (20-3) is provided with threads (20-6). The outer surface of the large-diameter tube surface (20-7) is provided with a flat part (20-5).

4. A one-way damping system for an armrest box as defined in claim 3, wherein: The damping spring (30) includes a first spring part (30-3), a second spring part (30-4), a third spring part (30-10), an upper protrusion (30-5), and a lower protrusion (30-1). The spring (30) has a spring inner hole (30-8) at its center. The lower protrusion (30-1) has a rivet through hole (30-9) on its outer surface. The first spring part (30-3) and the lower protrusion (30-1) have a spring opening (30-2). The second spring part (30-4) and the third spring part (30-10) have a first oil groove (30-6) at their connection. The first oil groove (30-6) is located inside the upper protrusion (30-5). The inner wall of the third spring part (30-10) has a second oil groove (30-7).

5. A one-way damping system for an armrest box as defined in claim 4, wherein: The rivet (40) includes a rivet shank (40-1), and a rivet head (40-2) is installed at one end of the rivet shank (40-1). One end of the rivet rod (40-1) passes through multiple rivet through holes (30-9) and rivet mounting holes (10-2) in sequence. The rivet cap (40-2) is attached to the spring piece (30).

6. A one-way damping system for an armrest box as defined in claim 5, wherein: The sleeve (50) includes an outer circle (50-1) and an inner circle (50-2); The outer diameter of the sleeve (50-1) matches the inner diameter of the spring piece (30-8).

7. A one-way damping system for an armrest box as defined in claim 6, wherein: The retaining ring (60) includes an inner retaining ring (60-1) and an outer retaining ring (60-2).

8. The armrest box unidirectional damping system according to claim 7, characterized in that: The one-way bearing (70) includes an outer ring (70-1) and an inner ring (70-2). One end of the shaft rod friction surface (20-1) penetrates and extends into the bearing inner ring (70-2); The bearing outer ring (70-1) is matched with the sleeve inner ring (50-2).