Hinge mechanism adaptive to automobile armrest assembly

Abstract

The utility model discloses a hinge mechanism adaptive to an automobile armrest assembly, which comprises an upper plate, a lower plate, a first hinge plate, a second hinge plate, a first connecting plate, a second connecting plate and a third connecting plate, wherein first hinge holes are respectively formed in lug plates on two sides of the upper plate; second hinge holes are formed in lug plates on the two sides of the lower plate respectively; hinge function units are arranged on lug plates on the two sides between the upper plate and the lower plate respectively, each hinge function unit comprises a double-end stud, and each double-end stud is of a kidney-shaped structure matched with the corresponding first kidney-shaped hole, so that when the upper plate rotates, the double-end studs can be driven to rotate together; the torsional spring can provide opening acting force for the upper plate to enable the upper plate to rotate relative to the lower plate; a limiting assembly; a hovering assembly; when the limiting piece overcomes the limiting acting force between the limiting piece and the limiting bottom plate, extrusion acting force in the axial direction of the double-end stud can be generated between the upper plate and the lower plate between the limiting assemblies. The upper plate and the small plate are connected at the two hinged positions through the two sets of hinged function units, the two hinged positions are arranged separately, the installation structure of the torsional spring and other components is simple, and installation is convenient.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts technology, specifically relating to a hinge mechanism that can be adapted to the sub-dashboard armrest assembly of an automobile. Background Technology

[0002] Hinges, as mechanical components, are widely used in various fields such as automobiles. Their functions are becoming increasingly diverse, with hinges featuring hovering capabilities being applied to assemblies such as automotive armrests. This type of hinge provides an automatic spring-opening force to the armrest cover when it is opened, allowing the cover to automatically spring open to a set angle and then hover.

[0003] Currently, hinges with this function usually use springs and damping to achieve pre-opening of the spring and suspension of the damping. Often, the setting of the spring results in a large hinge mechanism structure, and there are inconsistencies in the damping magnitude between different products, which leads to large differences in the angle at which the product opens on its own under the action of the spring, resulting in poor product consistency. Utility Model Content

[0004] The purpose of this utility model is to provide a hinge mechanism that is compatible with automotive armrest assemblies, so as to solve the problems of complex existing hinge structures and large differences in opening angles.

[0005] This utility model is achieved through the following technical solution:

[0006] Hinge mechanism, including:

[0007] The upper plate has a first hinge hole on each of its two ear plates, and the first hinge hole is an oblong hole.

[0008] The lower plate has second hinge holes on its two side ear plates;

[0009] The upper plate and the lower plate are respectively provided with hinge functional units on the ear plates on both sides, and the hinge functional units include:

[0010] A double-ended stud is sequentially inserted into the first hinge hole and the second hinge hole. The double-ended stud has an oblong structure that mates with the first oblong hole, so that the double-ended stud can rotate together when the upper plate rotates.

[0011] A torsion spring is fitted onto a double-ended stud and located between two lugs on the lower plate. One torsion arm is connected to the double-ended stud, and the other torsion arm is connected to the lower plate, so that the torsion spring can provide an opening force to the upper plate to rotate relative to the lower plate.

[0012] A limiting assembly is disposed between an upper plate and a lower plate, including a limiting base plate and a limiting member sleeved on a double-ended stud. The limiting base plate is connected to the lower plate, and the connecting hole of the limiting member is an oblong hole that mates with the double-ended stud, so that the double-ended stud can drive the limiting member to rotate when it rotates. When the limiting member rotates relative to the limiting base plate by a set angle, the limiting base plate can provide a limiting force to restrict the limiting member from continuing to rotate.

[0013] The hovering assembly includes a compensating spring sleeved on a double-ended stud and nuts disposed at both ends of the double-ended stud, wherein the nuts are threadedly connected to the double-ended stud to provide a pre-tightening force for the limiting assembly and the compensating spring disposed therebetween.

[0014] Under the action of external force, when the limiting component overcomes the limiting force between itself and the limiting base plate, the limiting components can generate a squeezing force in the axial direction of the double-ended stud between the upper plate and the lower plate.

[0015] In some embodiments, a limiting groove is provided on the end face of the limiting base plate opposite to the limiting member, and a limiting protrusion is provided on the corresponding end face of the limiting member, which can fall into the limiting groove, and the size of the limiting protrusion is smaller than the size of the limiting groove.

[0016] In some embodiments, the limiting base plate is provided with a support ear, and the lower plate is provided with an ear hole that mates with the support ear.

[0017] In some embodiments, the compensation springs are provided in multiple forms and located between the upper plate and the lower plate.

[0018] In some embodiments, a limiting groove is provided on the double-ended stud, and one torsion arm of the torsion spring is fitted into the limiting groove.

[0019] In some embodiments, a limit arm is provided on the lower plate, and another torsion arm of the torsion spring abuts against the limit arm.

[0020] In some embodiments, a friction liner is provided between the torsion spring and the lower plate.

[0021] In some embodiments, a limit bracket is provided on the lower plate to limit the rotation angle of the upper plate relative to the lower plate.

[0022] In some embodiments, a bushing is fitted onto the double-ended stud, and the torsion spring is fitted onto the bushing.

[0023] In some embodiments, the upper plate is fixedly connected to the handrail cover plate, and the lower plate is fixedly connected to the handrail body.

[0024] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0025] In this utility model, two sets of hinged functional units are used to connect the upper plate and the small plate at two hinged positions respectively. By setting the two hinged parts separately, the installation structure of the torsion spring and other components is simple and easy to install.

[0026] The hinged functional unit, through the cooperation between the limiting component and the suspension component, can accurately control the angle at which the armrest cover opens automatically, without affecting subsequent opening operations of the armrest cover, thus ensuring product consistency.

[0027] By designing the double-headed studs, limiting components, and suspension components, the articulated functional unit has a simple overall structure, is easy to install and disassemble, and allows for convenient adjustment of the opening force of the handrail cover. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the hinge mechanism in an embodiment of the present invention.

[0030] Figure 2 This is an exploded view of the hinge mechanism in an embodiment of this utility model.

[0031] Figure 3 This is a schematic diagram of the double-headed stud structure in an embodiment of this utility model.

[0032] Figure 4 This is a schematic diagram of the limiting component structure in an embodiment of the present utility model.

[0033] Figure 5 This is a schematic diagram of the limiting component structure in an embodiment of this utility model.

[0034] Figure 6 This is a schematic diagram of the limiting base plate structure in an embodiment of this utility model.

[0035] Figure 7 This is a schematic diagram of the torsion spring structure in an embodiment of this utility model.

[0036] Figure 8 This is a schematic diagram of the self-opening state of the car armrest assembly in an embodiment of this utility model.

[0037] Figure 9 This is a schematic diagram of the car armrest assembly in the suspended state in an embodiment of this utility model.

[0038] in:

[0039] 10. Upper plate, 11. First hinge hole;

[0040] 20. Lower plate; 21. Second hinge hole; 22. Limiting bracket; 23. Ear hole; 24. Limiting arm;

[0041] 30. Double-ended stud; 31. Limiting groove;

[0042] 40. Bushing;

[0043] 50. Torsion spring; 51. Torsion arm;

[0044] 60. Nuts;

[0045] 70. Gasket;

[0046] 80. Compensating spring;

[0047] 90. Limiting component; 91. Limiting protrusion;

[0048] 100. Limiting base plate; 101. Limiting groove; 102. Support lug;

[0049] 110. Friction lining;

[0050] 120. Soft rubber sleeve;

[0051] 210. Armrest cover; 220. Open button. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0053] This utility model is a hinge mechanism that can be applied to the armrest cover assembly and the central control mechanism to enable the armrest cover to open automatically to a set angle after the armrest opening button is pressed, and to suspend the armrest cover at any angle when it is manually rotated to any angle.

[0054] Reference Figure 1 and 2 In some embodiments of this utility model, the hinge mechanism includes:

[0055] The upper plate 10 has a first hinge hole 11 on each of its two ear plates. The first hinge hole is an oblong hole.

[0056] The lower plate 20 has second hinge holes 21 on its two ear plates;

[0057] A hinge unit is provided on each of the ear plates on both sides of the upper plate and the lower plate. The hinge unit includes:

[0058] The double-ended stud 30 is sequentially inserted into the first hinge hole and the second hinge hole. The double-ended stud 30 is an oblong structure that mates with the first oblong hole, so that the double-ended stud can rotate together when the upper plate rotates.

[0059] A torsion spring 50 is sleeved on a double-ended stud and located between two lugs of the lower plate. One torsion arm 51 is connected to the double-ended stud 30, and the other torsion arm 51 is connected to the lower plate, so that the torsion spring can provide an opening force to the upper plate to rotate relative to the lower plate.

[0060] A limiting assembly is disposed between the upper plate and the lower plate, including a limiting base plate 100 and a limiting member 90 sleeved on a double-ended stud. The limiting base plate 100 is connected to the lower plate 20. The connecting hole of the limiting member 90 is an oblong hole that mates with the double-ended stud, so that the double-ended stud can drive the limiting member to rotate when it rotates. When the limiting member rotates relative to the limiting base plate by a set angle, the limiting base plate can provide a limiting force to restrict the limiting member from continuing to rotate.

[0061] The hovering assembly includes a compensating spring 80 sleeved on a double-ended stud and nuts 60 disposed at both ends of the double-ended stud. The nuts 60 are threadedly connected to the double-ended stud 30, providing a pre-tightening force to the limiting assembly and compensating spring disposed therebetween.

[0062] Under the action of external force, when the limiting component overcomes the limiting force between itself and the limiting base plate, the limiting components can generate a squeezing force in the axial direction of the double-ended stud between the upper plate and the lower plate.

[0063] Two sets of hinged functional units are used to connect the upper plate and the small plate at two hinged positions respectively. By setting the two hinged parts separately, the installation structure of the torsion spring and other components is simple and easy to install.

[0064] Meanwhile, through the cooperation between the limiting component and the suspension component, the angle at which the armrest cover opens automatically can be accurately controlled without affecting subsequent opening operations of the armrest cover, thus ensuring product consistency.

[0065] By using the engagement between the double-ended stud and two nuts, the limiting component, the suspension component, and the torsion spring are all mounted on the double-ended stud and positioned between the two nuts. By adjusting the two nuts, the axial preload of the hinged functional component can be adjusted arbitrarily.

[0066] In some embodiments, refer to Figure 4 and Figure 5A limiting groove 101 is provided on the end face of the limiting member 90 opposite to the limiting member 90, and a limiting protrusion 91 is provided on the corresponding end face of the limiting member 90, which can fall into the limiting groove, and the size of the limiting protrusion 91 is smaller than the size of the limiting groove 101. When the upper plate rotates under the opening force of the torsion spring and rotates until the limiting protrusion abuts against the limiting groove, the limiting base plate 100 restricts the limiting member 90 from continuing to rotate.

[0067] Reference Figure 5 and Figure 6 The circumferential angle of the limiting groove 101 is B, and the circumferential angle of the limiting protrusion 91 is A. At this point, the theoretical angle of rotation of the upper plate is... It can effectively ensure the consistency of the opening angle of the upper plate.

[0068] In some embodiments, the limiting base plate 100 is provided with a support ear 102, and the lower plate 20 is provided with an ear hole 23 that cooperates with the support ear. The limiting base plate is fixedly connected to the lower plate through the cooperation between the support ear and the ear hole.

[0069] In some embodiments, multiple compensating springs 80 are provided and located between the upper plate and the lower plate. Taking two compensating springs as an example, when the limiting protrusion abuts against the limiting groove and an external force is applied to the upper plate to make the upper plate continue to rotate, the limiting protrusion disengages from the limiting groove and contacts the end face of the limiting base plate. At this time, the distance between the two increases, forming a compression on the two oppositely arranged compensating springs, and the rotational friction between the upper plate and the lower plate increases, thereby enabling the upper plate to be suspended at any angle.

[0070] In order to facilitate the release of the limiting protrusion from the limiting groove, the end faces of the limiting protrusion and the limiting groove can be set as transition slopes.

[0071] In some embodiments, refer to Figure 3 and Figure 7 The double-ended stud 30 is provided with a limiting groove 31, and one torsion arm of the torsion spring is fitted into the limiting groove 31. The lower plate 20 is provided with a limiting arm 24, and the other torsion arm of the torsion spring abuts against the limiting arm, making the installation and disassembly of the torsion spring convenient.

[0072] In some embodiments, a friction lining 110 is provided between the torsion spring and the lower plate to increase the friction force during suspension.

[0073] In some embodiments, a limiting bracket 22 is provided on the lower plate 20 to limit the rotation angle of the upper plate relative to the lower plate and to limit the opening angle of the upper plate. A soft rubber sleeve 120 is fitted on the limiting bracket 22 to prevent collision noise.

[0074] In some embodiments, a bushing 40 is fitted onto the double-ended stud 30, and a torsion spring 50 is fitted onto the bushing 40 to prevent abnormal noise when the upper plate rotates.

[0075] A washer 70 can be placed between the nut 60 and the upper plate and bushing 40.

[0076] All components of the hinge mechanism are made of metal, which increases the service life of the hinge mechanism and ensures the stability of its performance.

[0077] The car armrest assembly uses the aforementioned hinge mechanism, see reference. Figure 8 and Figure 9 The upper plate is fixedly connected to the handrail cover 210, and the lower plate is fixedly connected to the handrail body. The handrail cover and the handrail body are locked together by a locking mechanism. An opening button 220 is provided on the handrail body. Pressing the opening button unlocks the handrail, and the handrail cover opens automatically under the action of a torsion spring and stops after moving to a set angle. The handrail cover can be suspended at any position by manually rotating it.

[0078] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", and "outer" used to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only used to facilitate the description of this utility model and to simplify 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. Therefore, they should not be construed as limitations on this utility model.

[0079] Furthermore, the use of terms such as "horizontal" or "vertical" in the description of this utility model does not imply that the component is required to be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0080] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0081] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A hinge mechanism adapted to automotive armrest assemblies, characterized in that, include: The upper plate has a first hinge hole on each of its two ear plates, and the first hinge hole is an oblong hole. The lower plate has second hinge holes on its two side ear plates; The upper plate and the lower plate are respectively provided with hinge functional units on the ear plates on both sides, and the hinge functional units include: A double-ended stud is sequentially inserted into the first hinge hole and the second hinge hole. The double-ended stud has an oblong structure that mates with the first oblong hole, so that the double-ended stud can rotate together when the upper plate rotates. A torsion spring is fitted onto a double-ended stud and located between two lugs on the lower plate. One torsion arm is connected to the double-ended stud, and the other torsion arm is connected to the lower plate, so that the torsion spring can provide an opening force to the upper plate to rotate relative to the lower plate. A limiting assembly is disposed between an upper plate and a lower plate, including a limiting base plate and a limiting member sleeved on a double-ended stud. The limiting base plate is connected to the lower plate, and the connecting hole of the limiting member is an oblong hole that mates with the double-ended stud, so that the double-ended stud can drive the limiting member to rotate when it rotates. When the limiting member rotates relative to the limiting base plate by a set angle, the limiting base plate can provide a limiting force to restrict the limiting member from continuing to rotate. The hovering assembly includes a compensating spring sleeved on a double-ended stud and nuts disposed at both ends of the double-ended stud, wherein the nuts are threadedly connected to the double-ended stud to provide a pre-tightening force for the limiting assembly and the compensating spring disposed therebetween. Under the action of external force, when the limiting component overcomes the limiting force between itself and the limiting base plate, the limiting components can generate a squeezing force in the axial direction of the double-ended stud between the upper plate and the lower plate.

2. The hinge mechanism for an automotive armrest assembly according to claim 1, characterized in that, A limiting groove is provided on the end face of the limiting base plate opposite to the limiting member, and a limiting protrusion is provided on the corresponding end face of the limiting member, which can fall into the limiting groove, and the size of the limiting protrusion is smaller than the size of the limiting groove.

3. The hinge mechanism adapted to an automotive armrest assembly according to claim 1 or 2, characterized in that, The limiting base plate is provided with a support lug, and the lower plate is provided with an ear hole that mates with the support lug.

4. The hinge mechanism adapted to the automotive armrest assembly according to claim 1, characterized in that, The compensation springs are configured in multiple ways and are located between the upper plate and the lower plate.

5. The hinge mechanism adapted to an automotive armrest assembly according to claim 1, characterized in that, The double-ended stud is provided with a limiting groove, and one torsion arm of the torsion spring is fitted into the limiting groove.

6. The hinge mechanism adapted to an automotive armrest assembly according to claim 1 or 5, characterized in that, A limit arm is provided on the lower plate, and another torsion arm of the torsion spring abuts against the limit arm.

7. The hinge mechanism adapted to an automotive armrest assembly according to claim 1, characterized in that, A friction liner is provided between the torsion spring and the lower plate.

8. The hinge mechanism adapted to an automotive armrest assembly according to claim 1, characterized in that, A limit bracket is provided on the lower plate to limit the rotation angle of the upper plate relative to the lower plate.

9. The hinge mechanism adapted to an automotive armrest assembly according to claim 1, characterized in that, A bushing is fitted onto the double-ended stud, and the torsion spring is fitted onto the bushing.

10. The hinge mechanism adapted to an automotive armrest assembly according to claim 1, characterized in that, The upper plate is fixedly connected to the handrail cover plate, and the lower plate is fixedly connected to the handrail body.

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