A damping hinge mechanism and a car tray with the damping hinge mechanism
By using multiple sets of spring washers and nuts to adjust the axial force in the hinge mechanism of the car's small table, the problem of unstable damping torque was solved, thus achieving the stability and durability of the damping hinge and improving user comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUJIANG MINGYANG NEW MATERIALS TECH
- Filing Date
- 2025-06-20
- Publication Date
- 2026-07-03
AI Technical Summary
The existing hinge mechanism of car seat tray tables has unstable damping torque during rotation, which may fluctuate, or the rotational damping torque may be too large or too small. Moreover, the rotational damping torque decays quickly after prolonged operation, affecting comfort.
Multiple sets of spring washers are fitted onto the drive shaft, and their axial distance is adjusted by nuts to generate axial force to achieve stable frictional torque. The damping force is adjusted by changing the number of spring washers and the tightness of the nuts. Limiting is achieved by using a limiting end face to ensure the stability of the damping torque.
This achieves stability and durability of the damping hinge mechanism during rotation, avoids the problems of fluctuating and attenuating damping torque, and improves user comfort and equipment stability.
Smart Images
Figure CN224447583U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive tray table technology, and specifically to a damping hinge mechanism and an automotive tray table with a damping hinge mechanism. Background Technology
[0002] In automotive applications, seat tray tables offer convenient storage and unfolding capabilities, meeting the needs of various scenarios and gaining popularity. These tray tables primarily utilize hinges to connect the tray to the linkage, enabling rotation. However, existing hinge solutions often suffer from unstable damping torque during rotation, resulting in inconsistent damping torque, excessive or insufficient torque, or rapid torque decay and looseness after prolonged use, ultimately impacting comfort. Utility Model Content
[0003] To address the problems of the prior art, this utility model provides a damping hinge mechanism and a car tray with a damping hinge mechanism.
[0004] The purpose of this utility model can be achieved through the following technical solution: a damping hinge mechanism, including a drive seat, a washer, a mounting plate, several sets of spring washers and a nut, wherein the drive seat includes a mounting base and a drive shaft disposed at the lower end of the mounting base, the washer, the mounting plate and the spring washers are sequentially sleeved on the drive shaft from top to bottom, and the nut is threadedly connected to the end of the drive shaft.
[0005] In a further improvement, the gasket is provided in three sets, which are respectively disposed between the drive seat and the mounting plate, between the mounting plate and the spring washer, and between the spring washer and the nut.
[0006] In a further improvement, the mounting groove is provided with mounting holes, the two sides of the drive shaft are provided with limiting end faces one, the inner side of the gasket is provided with limiting end faces two, and the gasket is sleeved on the drive shaft and limited by the two sets of limiting end faces provided accordingly.
[0007] A car tray table with a damped hinge mechanism, comprising:
[0008] Damped hinge mechanism;
[0009] A flipping arm, comprising a fixed arm and a rotating arm, wherein the upper end of the rotating arm is provided with a mounting groove, and the hinge mechanism is disposed within the mounting groove;
[0010] The tabletop includes a tabletop one and a tabletop two that is flipped and disposed on one side of the tabletop. The lower end of the tabletop is connected to the mounting base and can rotate on the axis of the drive shaft.
[0011] In a further improvement, the mounting groove is provided with mounting holes, and the mounting plate is provided with locking holes on both sides. The mounting holes and the locking holes are provided in a corresponding manner and can be connected by a bolt.
[0012] As a further improvement, an end cap is provided at the lower end of the mounting groove.
[0013] As a further improvement, a third tabletop is provided on each of the two sides of the tabletop.
[0014] Compared with the prior art, the present invention has the following advantages: multiple sets of spring washers are sleeved on the drive shaft and their axial distance is adjusted by nuts. By squeezing the multiple sets of spring washers, a corresponding axial force is generated, which in turn causes the mounting plate to press against the washers and generate frictional torque. At the same time, since the axial force is generated by the squeezing of multiple layers of spring washers, the axial force can be arbitrarily set and output by adjusting the axial direction of the multiple layers of spring washers by nuts, thereby realizing a stable damping function between the drive shaft and the mounting plate. Attached Figure Description
[0015] Figure 1 This is a partial exploded view of the damping hinge mechanism of this utility model;
[0016] Figure 2 This is a schematic diagram of a preferred embodiment of the damping hinge mechanism of this utility model;
[0017] Figure 3 This is a schematic diagram of the rotation of the car tray with damping hinge mechanism according to this utility model;
[0018] Figure 4 This is a schematic diagram of the installation of the car tray with damping hinge mechanism according to this utility model;
[0019] Figure 5 This is a schematic diagram of the bottom structure of the car tray with damping hinge mechanism of this utility model;
[0020] Figure 6 This is a cross-sectional view of the installation of the car tray with damping hinge mechanism according to this utility model.
[0021] In the diagram, 1 is the flipping arm; 11 is the fixed arm; 12 is the rotating arm; 121 is the mounting slot; 1211 is the mounting hole; 1212 is the end cap; 2 is the table; 21 is the table first; 22 is the table second; 23 is the table third; 3 is the hinge mechanism; 31 is the drive seat; 311 is the mounting seat; 312 is the drive shaft; 3121 is the limiting end face first; 32 is the gasket; 321 is the limiting end face second; 33 is the mounting plate; 331 is the locking hole; 34 is the spring washer; and 35 is the nut. Detailed Implementation
[0022] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0024] The following is a description of the embodiments and appendices. Figures 1-6 The technical solution of this utility model will be further described below.
[0025] Example 1
[0026] A damping hinge mechanism includes a drive seat 31, a washer 32, a mounting plate 33, a plurality of spring washers 34, and a nut 35. The drive seat 31 includes a mounting base 311 and a drive shaft 312 disposed at the lower end of the mounting base 311. The washer 32, the mounting plate 33, and the spring washers 34 are sequentially sleeved on the drive shaft 312 from top to bottom. The nut 35 is threadedly connected to the end of the drive shaft 312.
[0027] like Figures 1-2 As shown, the multiple sets of spring washers 34 of this utility model are sleeved on the drive shaft 312 and their axial distance is adjusted by the nut 35. By squeezing the multiple sets of spring washers 34, a corresponding axial force is generated, which in turn causes the mounting plate 33 to press against the washer 32 to generate a frictional torque. At the same time, since the axial force is generated by the squeezing of the multiple layers of spring washers, the axial force can be arbitrarily set and output by adjusting the axial direction of the multiple layers of spring washers 34 by the nut 35, thereby realizing a stable damping function between the drive shaft 312 and the mounting plate 33.
[0028] Alternatively, the hardness of the mounting plate 33 and the spring washer 34 can be selected to be HRC30 or higher. By selecting an appropriate number of spring washers 34 and the tightening degree of the nut 35, the damping force can be adjusted to meet different usage requirements.
[0029] As a further preferred embodiment, the gasket 32 is provided in three sets, and the three sets of gaskets 32 are respectively disposed between the drive seat 31 and the mounting plate 33, between the mounting plate 33 and the spring washer 34, and between the spring washer 34 and the nut 35.
[0030] Specifically, the gasket 32 located between the drive seat 31 and the mounting plate 33 can buffer the mechanical stress between them, protecting the mounting plate 33 and the drive seat 31 from direct impact. The gasket 32 between the mounting plate 33 and the spring washer 34 can ensure that the spring washer 34 is evenly stressed, preventing local overload. And the gasket 32 between the spring washer 34 and the nut 35 helps to provide stable support during the tightening of the nut 35, preventing the nut 35 from loosening and ensuring a stable output of damping force.
[0031] Furthermore, multiple sets of mounting plates 33 and gaskets 32 are provided to improve the stability of the equipment.
[0032] As a further preferred embodiment, the drive shaft 312 is provided with a first limiting end face 3121 on both sides, and the gasket 32 is provided with a second limiting end face 321 on the inner side. The gasket 32 is sleeved on the drive shaft 312 and is limited by the two sets of corresponding limiting end faces.
[0033] Specifically, the limiting end face is used to limit the rotation, so that the shim 32 and the drive shaft 312 remain relatively fixed during rotation.
[0034] A car tray table with a damped hinge mechanism, characterized in that it comprises:
[0035] The damping hinge mechanism according to any one of claims 1 to 3;
[0036] A flipping arm 1, comprising a fixed arm 11 and a rotating arm 12, wherein the upper end of the rotating arm 12 is provided with a mounting groove 121, and the hinge mechanism is disposed within the mounting groove 121;
[0037] The tabletop 2 includes a tabletop 21 and a tabletop 22 that is flipped and disposed on one side of the tabletop 2. The lower end of the tabletop 21 is connected to the mounting base 311 and can rotate along the axis of the drive shaft 312.
[0038] like Figures 3-6 As shown, in this embodiment, a damping hinge mechanism is set between the flip arm 1 and the table 2. The damping hinge mechanism avoids the problem of looseness caused by unstable damping torque, excessive or insufficient rotational damping torque, or rapid decay of rotational damping torque during the rotation of the small table around axis O1a.
[0039] Alternatively, a damping hinge mechanism can be provided at the rotating connection between the fixed arm 11 and the rotating arm 12, providing stable damping support force when the rotating arm 12 rotates about axis 02a, or provided at the end of the fixed arm 11, providing equally stable damping support force during the rotation of the fixed arm 11 about axis 03a.
[0040] Furthermore, this damping hinge mechanism can be used in different rotating connections to provide stable damping support force.
[0041] As a further preferred embodiment, the mounting groove 121 is provided with mounting holes 1211, and the mounting plate 33 is provided with locking holes 331 on both sides. The mounting holes 1211 and the locking holes 331 are correspondingly provided and can be connected by a bolt.
[0042] Specifically, the mounting hole 1211 and the locking hole 331 are positioned to facilitate fixing the mounting plate 33 in the mounting groove 121 of the rotating arm 12 with bolts, ensuring the stable installation of the hinge mechanism 3, while also facilitating disassembly and assembly and subsequent maintenance.
[0043] As a further preferred embodiment, an end cap 1212 is provided at the lower end of the mounting groove 121. The end cap 1212 is used to seal the mounting groove 121 to prevent debris from entering the mounting groove 121 and thus affecting the reliability of the hinge mechanism 3.
[0044] As a further preferred embodiment, the side end of the second table 22 is flipped to provide a third table 23, which can meet different usage needs of the small table.
[0045] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.
Claims
1. A damper hinge mechanism, characterized by, The device includes a drive seat, gaskets, mounting plate, several sets of spring washers, and nuts. The drive seat includes a mounting base and a drive shaft located at the lower end of the mounting base. The gaskets, mounting plate, and spring washers are sequentially sleeved on the drive shaft from top to bottom. The nuts are threaded to the end of the drive shaft.
2. A damper hinge mechanism according to claim 1, wherein The gasket is provided in three sets, which are respectively disposed between the drive seat and the mounting plate, between the mounting plate and the spring washer, and between the spring washer and the nut.
3. A damper hinge mechanism according to claim 1 or 2, wherein The drive shaft is provided with a first limiting end face on both sides, and the shim is provided with a second limiting end face on the inner side. The shim is sleeved on the drive shaft and is limited by the two sets of corresponding limiting end faces.
4. A car table with a damped hinge mechanism, characterized in that include: The damping hinge mechanism according to any one of claims 1 to 3; A flipping arm, comprising a fixed arm and a rotating arm, wherein the upper end of the rotating arm is provided with a mounting groove, and the hinge mechanism is disposed within the mounting groove; The tabletop includes a tabletop one and a tabletop two that is flipped and disposed on one side of the tabletop. The lower end of the tabletop is connected to the mounting base and can rotate on the axis of the drive shaft.
5. The desk board with a damping hinge mechanism according to claim 4, characterized in that, The mounting groove is provided with mounting holes, and the mounting plate is provided with locking holes on both sides. The mounting holes and the locking holes are provided in correspondence and can be connected by a bolt.
6. A car tray table with a damping hinge mechanism according to claim 4, characterized in that, An end cap is provided at the lower end of the mounting slot.
7. The desk board with a damping hinge mechanism according to claim 4, characterized in that, The tabletop is flipped up on both sides to form a tabletop three.