Frictional damping mechanism for a hinge with hovering function

Abstract

This invention discloses a friction damping mechanism for a hinge with a hovering function, comprising an upper hinge bracket, a lower hinge bracket, a damping baffle, a hinge shaft, and a limiting washer. The upper hinge bracket has shaft holes at its two end ends, and the lower hinge bracket has limiting holes at its two end ends. The damping baffle is positioned on both sides of the limiting holes and is detachably connected to the lower hinge bracket. The hinge shaft is interference-fitted into the shaft holes, and is used to sequentially assemble and connect one side damping baffle, the lower hinge bracket, and the other side damping baffle. The limiting washer is installed in the limiting holes and snaps into a slot on the hinge shaft. This technical solution is ingeniously conceived and novelly designed. Compared with existing riveting structures, when used in armrest hinges, the hinge torque is controllable; only the interference fit between the damping baffle and the hinge shaft needs to be adjusted, thus satisfying the adjustment function of the hinge shaft's performance.

Description

Technical Field

[0001] This invention relates to the field of automotive parts technology, and specifically to a friction damping mechanism for a hinge with a hovering function. Background Technology

[0002] Most passenger cars have an armrest on the passenger side dashboard assembly, typically located at the rear of the dashboard. It serves as a resting place for the elbow and also provides storage, making it an important aspect of the car's ergonomic design. Currently, armrests generally have a rotating opening function, achieved through a hinge structure. There are many types of hinge opening mechanisms, with one common method using a spring. However, this only allows for two positions—open and closed—and cannot meet the requirement of stopping at any arbitrary position.

[0003] Another way to achieve the suspension and locking of the handrail hinge is to use riveting and pressing for fixation. However, suspension failure is prone to occur during this process. The force value can only be adjusted by changing the length of the riveting. Moreover, it is troublesome to disassemble and assemble, easily damaged, and cannot meet the increasingly high quality requirements.

[0004] In the prior art, such as Chinese patent CN202782790U, a novel automotive sub-dashboard armrest is disclosed, which solves the problem that the existing automotive sub-dashboard armrest can only be in two positions, open and closed, and cannot meet the requirement of stopping at any position. It includes a shaft, screws, and hinges. A suspension mechanism is sleeved on the shaft and is mounted on the hinge by screws. The suspension mechanism is composed of a metal plate and a nylon bushing, with the nylon bushing sleeved inside the metal plate. This patent cleverly uses the shaft hole to lock and control the armrest while fixing the armrest and hinge, ensuring both installation and functionality. However, the suspension mechanism in this patent uses a metal plate and a nylon bushing to provide damping for suspension and locking, which results in higher manufacturing costs and a more complex structure. Summary of the Invention

[0005] The purpose of this invention is to provide a friction damping mechanism for hinges with a hovering function, which solves the problem of poor hovering effect in existing handrail hinge mechanisms.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] A friction damping mechanism for a hinge with a hovering function, comprising:

[0008] The hinge bracket has shaft holes at both ends;

[0009] The hinged lower bracket has limit holes on both top sides;

[0010] Damping baffles are provided on both sides of the limiting hole and are detachably connected to the lower hinge bracket;

[0011] The hinge shaft is interference-fitted into the shaft hole, and the damping baffle on one side, the lower hinge bracket and the damping baffle on the other side are sequentially assembled and connected through the hinge shaft.

[0012] A limiting washer is installed in the limiting hole and snapped into the slot on the hinge shaft.

[0013] The damping baffle has two symmetrically integrated crescent-shaped retaining rings, one and two, at its center. The two crescent-shaped retaining rings form a damping shaft hole. The hinge shaft is connected to the damping shaft hole with an interference fit. Tensioning notches are symmetrically provided on both sides of the damping shaft hole. The friction between the damping shaft hole and the static hinge shaft ensures that the support on the hinge is reliably held at any angle after being flipped.

[0014] As a further aspect of the present invention: the outer peripheral surfaces of the first crescent-shaped retaining ring and the second crescent-shaped retaining ring are respectively provided with process holes between them and the damping baffle.

[0015] As a further aspect of the present invention: a POM gasket is clamped between the tail end of the hinge bracket and the damping baffle, and the POM gasket is sleeved on the hinge shaft.

[0016] As a further aspect of the present invention: the upper and lower ends of the damping baffle are respectively provided with riveting holes, and the hinge lower bracket is integrally connected to the riveting holes by rivets.

[0017] As a further aspect of the present invention: the limiting pad is fixed within the limiting hole by the damping baffles on both sides.

[0018] As a further aspect of the present invention: the POM gasket is a wear-resistant gasket.

[0019] As a further aspect of the present invention: straight knurling is provided on the hinge shaft and near one end of it, and the straight knurling of the hinge shaft is interference-fitted with the bracket on the hinge.

[0020] As a further aspect of the present invention: cylindrical polished sections are provided on the hinge shaft and on both sides of its slot, and the cylindrical polished sections of the hinge shaft are interference-fitted with the damping baffle.

[0021] As a further aspect of the present invention: the bracket on the hinge is used to fix and connect the handrail cover plate.

[0022] As a further aspect of the present invention: the lower hinge bracket is used to fix and connect the handrail body.

[0023] The beneficial effects of this invention are:

[0024] (1) The armrest hinge suspension mechanism of the present invention is ingenious and novel in design. Compared with the existing riveting structure, when it is used for armrest hinges, the hinge torque is controllable. Only the interference between the damping baffle and the hinge shaft needs to be adjusted, thereby satisfying the adjustment function of the hinge shaft.

[0025] (2) The armrest hinge suspension mechanism of the present invention can be made by molding plastic, stamping, heat treatment and surface coating, which is low in cost and easy to manufacture;

[0026] (3) The handrail hinge suspension mechanism provided by the present invention is easy to use, has a stable and reliable structure, can improve the overall quality stability of the handrail hinge, and meet its suspension function. Attached Figure Description

[0027] The invention will now be further described with reference to the accompanying drawings.

[0028] Figure 1 This is a schematic diagram of the structure of the present invention;

[0029] Figure 2 This is a schematic cross-sectional view of the hinge position between the upper hinge bracket and the lower hinge bracket of the present invention;

[0030] Figure 3 This is a schematic diagram of the damping baffle structure of the present invention;

[0031] Figure 4 This is a schematic diagram of the hinge bracket assembly and installation of the hinge shaft according to the present invention;

[0032] Figure 5 This is a schematic diagram of the damping baffle mounted on the hinge lower bracket of the present invention.

[0033] In the diagram: 1. Upper hinge bracket; 2. Lower hinge bracket; 3. Damping baffle; 30. Crescent-shaped retaining ring one; 31. Crescent-shaped retaining ring two; 32. Damping shaft hole; 33. Tensioning notch; 34. Process hole; 35. Riveting hole; 4. Hinge pivot; 5. Rivet; 6. POM washer; 7. Limiting washer. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] In the description of this invention, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention; in the description of this invention, "a plurality of" or "several" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] Please see Figure 1-3 As shown, this invention is a friction damping mechanism for a hinge with a hovering function, including an upper hinge support 1, a lower hinge support 2, a damping baffle 3, a hinge shaft 4, and a limiting washer 7. The upper hinge support 1 has shaft holes at its two end ends, and the lower hinge support 2 has limiting holes at its two end ends. The damping baffle 3 is disposed on both sides of the limiting holes and is detachably connected to the lower hinge support 2. The hinge shaft 4 is interference-fitted into the shaft holes, and the damping baffle 3 on one side, the lower hinge support 2, and the damping baffle 3 on the other side are sequentially assembled and connected via the hinge shaft 4. The limiting washer 7 is installed in the limiting holes and snap-fitted to the limiting holes on the hinge shaft 4. In the assembly process of the hinge shaft 4, the hinge shaft 4 and the upper hinge bracket 1 can be linked by interference friction. The hinge shaft 4 can rotate along the damping baffle 3 by interference friction. The damping baffle 3 is an elastic metal part. After the hinge shaft 4 has completed the flip angle along the damping baffle 3, the damping baffle 3 performs friction damping locking on the hinge shaft 4 to realize the function of the upper hinge bracket 1 suspending at the flip angle position along the lower hinge bracket 2. By snapping the limiting pad 7 to the slot on the hinge shaft 4, the hinge shaft 4 can be prevented from moving axially to ensure the reliable function of the assembly of the hinge shaft 4.

[0037] The damping baffle 3 is symmetrically equipped with two integrally formed crescent-shaped retaining rings 30 and 31 at its central position. These two rings form a damping shaft hole 32, which is interference-fitted with the hinge shaft 4. Tensioning notches 33 are symmetrically arranged on both sides of the damping shaft hole 32. The friction between the damping shaft hole 32 and the static hinge shaft 4 reliably maintains the support 1 on the hinge at any angle after rotation. During the friction damping action between the damping baffle 3 and the hinge shaft 4, the position of the damping baffle 3 is restricted and installed on the lower hinge bracket 2 so that the hinge shaft 4 of the upper hinge bracket 1 rotates along the damping shaft hole of the damping baffle 3. After rotating to the required angle position, the crescent-shaped retaining ring 1 30 and the crescent-shaped retaining ring 2 31 elastically reset the friction damping hinge shaft 4 so that the hinge shaft 4 reaches the rotation angle position and locks, so that the upper hinge bracket 1 and the installed handrail cover plate are suspended at the rotation angle position.

[0038] During this process, if the frictional damping force between the hinge shaft 4 and the damping baffle 3 is too large, the operating force required to flip the hinge shaft 4 increases, which is not conducive to the user's flipping and use. Conversely, if the frictional damping force between the hinge shaft 4 and the damping baffle 3 is too small, the operating force required to flip the hinge shaft 4 decreases, but the frictional damping locking force of the hinge shaft 4 when flipped to the required angle position also decreases, making it more difficult for the bracket 1 on the hinge to be suspended and locked at the flipping angle position. Therefore, both excessive and excessive frictional damping affect the use effect of the hinge shaft 4. In this application, the frictional force between the damping shaft hole 32 and the surface of the hinge shaft 4 can be adjusted by the opening size of the tensioning notch 33. The opening size of the tensioning notch 33 allows the crescent-shaped retaining ring 30 and The frictional contact area between the inner circumferential surface of the crescent-shaped retaining ring 31 and the hinge shaft 4 is adjusted, thereby adjusting the interference fit between the hinge shaft 4 and the damping baffle 3. During the assembly of the hinge shaft 4, if the frictional damping force between the hinge shaft 4 and the damping baffle 3 is too large, the opening gap of the tension notch 33 is increased to reduce the frictional resistance of the interference fit surface of the hinge shaft 4. If the frictional damping force between the hinge shaft 4 and the damping baffle 3 is too small, the elastic deformation of the crescent-shaped retaining ring 30 and the crescent-shaped retaining ring 31 approaches. The opening gap of the tension notch 33 is reduced to increase the frictional resistance of the interference fit surface of the hinge shaft 4, thereby satisfying the adjustment function of the hinge shaft 4.

[0039] In this specific implementation, such as Figure 3 As shown, the outer peripheral surfaces of the crescent-shaped retaining ring 30 and the second crescent-shaped retaining ring 31 are respectively provided with process holes 34 between them and the damping baffle 3. The process holes 34 facilitate the molding and setting of the crescent-shaped retaining ring 30 and the second crescent-shaped retaining ring 31, and at the same time, they can reduce the weight of the damping baffle 3. In addition, during the frictional damping action between the hinge shaft 4 and the crescent-shaped retaining ring 30 and the second crescent-shaped retaining ring 31, the process holes 34 ensure that the crescent-shaped retaining ring 30 and the second crescent-shaped retaining ring 31 have an elastic margin clearance, and facilitate the adaptive adjustment of the opening size clearance of the tensioning notch 33, so as to meet the assembly requirements of the hinge shaft 4.

[0040] In this specific implementation, such as Figure 1 and Figure 2 As shown, a POM pad 6 is clamped between the tail end of the hinge bracket 1 and the damping baffle 3. The POM pad 6 is sleeved on the hinge shaft 4. During the frequent flipping and hovering of the hinge bracket 1, the POM pad 6 can prevent the hinge bracket 1 from contacting the damping baffle 3, so as to prevent the damping baffle 3 from being worn more severely.

[0041] Furthermore, such as Figure 3 and Figure 5As shown, the damping baffle 3 has riveting holes 35 at both the upper and lower ends. The lower hinge bracket 2 is integrally connected to the riveting holes 35 by rivets 5. The rivets 5 facilitate the quick riveting and fixing of the damping baffle 3 to the lower hinge bracket 2, so as to quickly restrict the position of the damping baffle 3 and make the operation convenient. In addition, a POM gasket 6 is formed between the upper hinge bracket 1 and the damping baffle 3 to prevent the end of the rivet 5 from interfering with the upper hinge bracket 1 during the flipping process.

[0042] Furthermore, the limiting shim 7 is fixed in the limiting hole by the damping baffles 3 on both sides, and the limiting shim 7 is snapped onto the hinge shaft 4. The installation position of the limiting shim 7 is in the limiting hole between the hinges, which can prevent the hinge shaft 4 from moving axially. At the same time, the limiting shim 7 is fixed by the gap of the damping baffles 3 on both sides, which can prevent the limiting shim 7 from falling out of the limiting hole, thus ensuring the assembly quality of the hinge shaft 4.

[0043] Furthermore, the POM pad 6 is a wear-resistant pad. During the rotation of the hinge shaft 4 linked to the hinge bracket 1, the POM pad 6 is worn between the hinge bracket 1 and the damping baffle 3. Using a wear-resistant POM pad 6 helps to improve its service life.

[0044] In this specific implementation, such as Figure 4 As shown, straight knurling is provided on the hinge shaft 4 and near one end of it. The straight knurling of the hinge shaft 4 is interference-fitted with the upper hinge bracket 1 so that the fingerprint knurling position of the hinge shaft 4 and the upper hinge bracket 1 are interference-fitted and installed stably and securely, ensuring the flipping linkage effect of the hinge shaft 4 and the upper hinge bracket 1.

[0045] Furthermore, cylindrical polished sections are provided on the hinge shaft 4 and on both sides of its slot. The cylindrical polished sections of the hinge shaft 4 are interference-fitted with the damping baffle 3 so as to adjust the frictional damping force between the cylindrical polished sections of the hinge shaft 4 and the damping baffle 3, so as to avoid excessive frictional damping force affecting the flipping effect of the hinge shaft 4.

[0046] In this specific embodiment, the hinge bracket 1 is used to fix and connect the handrail cover plate.

[0047] In this specific embodiment, the hinge lower bracket 2 is used to fix and connect the handrail body.

[0048] During the assembly of the friction damping mechanism of this application, the limiting washer 7 is fitted into the limiting hole of the lower hinge bracket 2, and the rivets 5 are sequentially inserted into the corresponding riveting holes 35 of the damping baffle 3 and the lower hinge bracket 2. Then, the rivets 5 are riveted and fixed to the damping baffle 3 and the lower hinge bracket 2 by a riveting machine, so that the lower hinge bracket 2 assembly is completed. The POM washer 6 is fitted onto the hinge shaft 4, and the straight-knurled section of the hinge shaft 4 is pressed into the shaft hole of the upper hinge bracket 1, so that the upper hinge bracket 1 assembly is completed, until the hinge is... The upper support bracket 1 and the lower hinge bracket 2 are assembled via the hinge shaft 4. During the assembly of the hinge shaft 4, the hinge shaft 4 and the upper hinge bracket 1 can be linked by interference friction. The hinge shaft 4 can rotate along the damping baffle 3 with interference friction. The damping baffle 3 is an elastic metal part. After the hinge shaft 4 has completed the rotation angle along the damping baffle 3, the damping baffle 3 performs friction damping locking on the hinge shaft 4 to realize the function of the upper hinge bracket 1 suspending along the lower hinge bracket 2 at the rotation angle position.

[0049] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A friction damping mechanism for a hinge with a hovering function, characterized in that, include: The hinge bracket (1) has shaft holes at both ends; The hinge lower bracket (2) has limit holes on both top sides; Damping baffles (3) are provided on both sides of the limiting hole and are detachably connected to the lower hinge bracket (2); The hinge shaft (4) is installed in the shaft hole with an interference fit, and the damping baffle (3) on one side, the lower hinge bracket (2) and the damping baffle (3) on the other side are sequentially assembled and connected through the hinge shaft (4); The limiting shim (7) is installed in the limiting hole and snapped into the slot on the hinge shaft (4); The damping baffle (3) is symmetrically provided with a crescent-shaped retaining ring 1 (30) and a crescent-shaped retaining ring 2 (31) with an integral structure at the center position. The crescent-shaped retaining ring 1 (30) and the crescent-shaped retaining ring 2 (31) form a damping shaft hole (32). The damping shaft hole (32) is connected to the hinge shaft (4) with an interference fit. Tensioning notches (33) are symmetrically provided on both sides of the damping shaft hole (32). The friction between the damping shaft hole (32) and the static hinge shaft (4) makes the upper bracket (1) of the hinge reliably maintained at any angle after flipping.

2. The friction damping mechanism for a hinge with a hovering function according to claim 1, characterized in that, The outer peripheral surfaces of the crescent-shaped retaining ring one (30) and the crescent-shaped retaining ring two (31) are respectively provided with process holes (34) between them and the damping baffle (3).

3. The friction damping mechanism for a hinge with a hovering function according to claim 1, characterized in that, A POM gasket (6) is clamped between the tail end of the hinge bracket (1) and the damping baffle (3), and the POM gasket (6) is sleeved on the hinge shaft (4).

4. A friction damping mechanism for a hinge with a hovering function according to claim 3, characterized in that, The damping baffle (3) has rivet holes (35) at its upper and lower ends respectively, and the hinge lower bracket (2) is integrally connected to the rivet holes (35) by rivets (5).

5. A friction damping mechanism for a hinge with a hovering function according to claim 4, characterized in that, The limiting pad (7) is fixed in the limiting hole by the damping baffles (3) on both sides.

6. A friction damping mechanism for a hinge with a hovering function according to claim 3, characterized in that, The POM gasket (6) is a wear-resistant gasket.

7. A friction damping mechanism for a hinge with a hovering function according to claim 1, characterized in that, The hinge shaft (4) is provided with straight knurling on one side of its end, and the straight knurling of the hinge shaft (4) is interference-fitted with the hinge bracket (1).

8. A friction damping mechanism for a hinge with a hovering function according to claim 7, characterized in that, The hinge shaft (4) is provided with cylindrical polished sections on both sides of its slot, and the cylindrical polished sections of the hinge shaft (4) are interference-fitted with the damping baffle (3).

9. A friction damping mechanism for a hinge with a hovering function according to claim 1, characterized in that, The hinge bracket (1) is used to fix the handrail cover plate.

10. A friction damping mechanism for a hinge with a hovering function according to claim 1, characterized in that, The hinge lower bracket (2) is used to fix and connect the handrail body.

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