Armrest adjustment assembly, seat armrest, and vehicle seat

Abstract

The utility model relates to a handrail adjusting assembly, seat handrail and vehicle seat. Handrail adjusting assembly includes: angle adjusting module, including support and transmission shaft, the first end part of transmission shaft rotatablely connects in support, and the second end part of transmission shaft is configured as fixed connection in handrail, support and transmission shaft between be equipped with mutually cooperate's arc slot and sliding block, sliding block movably locate in arc slot, arc slot is configured as limit transmission shaft relative support's maximum rotation angle, and power module, including power output part, power output part connects in transmission shaft's first end part. Handrail adjusting assembly modularization, simple structure, convenient and flexible installation can be applied to different handrail project, transmission shaft directly drives handrail to overturn, simple structure, small space occupation, benefit the compactness of overall structure, can adjust the overturning angle of handrail through the relative position of arc slot and sliding block, and limit the maximum overturning angle of handrail to satisfy different demands.

Description

Technical Field

[0001] This utility model relates to the field of vehicle parts technology, and in particular to an armrest adjustment component, a seat armrest, and a vehicle seat. Background Technology

[0002] Vehicle seats and their accompanying armrests are designed to enhance passenger comfort and riding experience. The armrests not only provide arm support but can also be adjusted vertically and horizontally to reduce fatigue and increase riding pleasure. However, in some related technologies, the adjustment mechanisms of the armrests are complex, space-consuming, and detrimental to the overall structural compactness. Utility Model Content

[0003] Some embodiments of this utility model propose an armrest adjustment component, a seat armrest, and a vehicle seat to alleviate the problem of complex seat armrest adjustment structures.

[0004] In one aspect of this utility model, an armrest adjustment assembly is provided, comprising:

[0005] An angle adjustment module includes a bracket and a drive shaft. A first end of the drive shaft is rotatably connected to the bracket, and a second end of the drive shaft is fixedly connected to a handrail. An arc-shaped groove and a slider are provided between the bracket and the drive shaft. The slider is movably disposed within the arc-shaped groove, and the arc-shaped groove is configured to limit the maximum rotation angle of the drive shaft relative to the bracket.

[0006] The power module includes a power output section, which is connected to the first end of the drive shaft.

[0007] In some embodiments, the support includes:

[0008] support plate; and

[0009] A cover plate is provided over the support plate, the first end of the drive shaft is located inside the cover plate, and the second end of the drive shaft passes through the cover plate and is connected to the handrail.

[0010] In some embodiments, the first end of the drive shaft is configured as a flange with a radial dimension larger than that of the other shaft segments of the drive shaft, and the arcuate groove is provided on the flange.

[0011] In some embodiments, the arcuate groove is disposed at the first end of the drive shaft, and the slider is disposed on the bracket.

[0012] In some embodiments, the armrest adjustment assembly further includes a limiting member, the bracket is provided with a through hole, the limiting member passes through the through hole, a limiting structure is provided between the limiting member and the through hole to restrict the limiting member from rotating with the drive shaft, the limiting member is provided with a shaft hole that allows the drive shaft to pass through; the slider is provided on the limiting member.

[0013] In some embodiments, the limiting structure includes a through hole configured to have multiple corner portions, and multiple protrusions disposed on the outer periphery of the limiting member, the limiting member passing through the through hole, and the multiple protrusions being adapted to the multiple corner portions one by one.

[0014] In some embodiments, the limiting member includes a first cylindrical segment and a second cylindrical segment, the radial dimension of the second cylindrical segment is greater than the radial dimension of the first cylindrical segment, the protrusion is disposed on the first cylindrical segment, the slider is disposed on the second cylindrical segment, and the radial dimension of the second cylindrical segment is greater than the radial dimension of the through hole.

[0015] In some embodiments, the radial dimension of the first end of the drive shaft is greater than the radial dimension of the second cylindrical segment.

[0016] In some embodiments, the armrest adjustment assembly further includes a buffer element fitted to the outer periphery of a first end of the drive shaft and connected to the bracket.

[0017] In some embodiments, the drive shaft is coaxially arranged with the power output unit.

[0018] In some embodiments, the first end of the drive shaft is provided with a mating hole, and the power output part is provided with an output tooth for inserting into the mating hole and for being drivenly connected to the mating hole.

[0019] In another aspect of this utility model, a seat armrest is provided, including an armrest and the aforementioned armrest adjustment assembly.

[0020] In some embodiments, the armrest is provided with a mounting hole, and the second end of the drive shaft passes through the mounting hole and is fixedly connected to the mounting hole.

[0021] In another aspect of this utility model, a vehicle seat is provided, including a seat, an armrest, and the aforementioned armrest adjustment assembly, wherein the bracket is fixedly connected to the seat.

[0022] In some embodiments, the seat includes a frame plate, the angle adjustment module is located on the side of the frame plate near the armrest, and the power module is located on the side of the frame plate away from the armrest.

[0023] Based on the above technical solution, this utility model has at least the following beneficial effects:

[0024] In some embodiments, the armrest adjustment assembly is modular, comprising an angle adjustment module and a power module. The power output is directly connected to the drive shaft of the angle adjustment module, which is directly connected to the armrest. This design is simple in structure, easy and flexible to install, and applicable to various armrest projects. The power module allows for speed adjustment to meet different user speed requirements, while the angle adjustment module adjusts the armrest's tilt angle and maximum tilt angle to meet diverse needs. The drive shaft directly drives the armrest tilt, resulting in a simple structure, small footprint, and compact overall design. A matching arc-shaped groove and slider are provided between the support and the drive shaft. During the rotation of the drive shaft relative to the support, the slider slides along the arc-shaped groove, limiting its travel. Therefore, the relative position of the arc-shaped groove and the slider allows adjustment of the armrest's tilt angle, and the arc-shaped groove limits the slider's travel, thus limiting the armrest's maximum tilt angle. The arc-shaped groove extends around the central axis of the drive shaft, and its arc length can be set as needed. Therefore, it can meet users' requirements for different maximum tilt angles of the armrest, offering high adaptability and low cost. Attached Figure Description

[0025] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0026] Figure 1 A schematic diagram of a seat armrest provided in some embodiments of this utility model;

[0027] Figure 2 A schematic diagram showing the uninstalled state of various components of a seat armrest according to some embodiments of this utility model;

[0028] Figure 3 An exploded view of the armrest adjustment assembly provided in some embodiments of this utility model;

[0029] Figure 4 A partial cross-sectional view of a seat armrest provided in some embodiments of the present utility model;

[0030] Figure 5 A schematic diagram of a bracket provided for some embodiments of this utility model;

[0031] Figure 6 This is a schematic diagram of the angle adjustment module after removing the bracket, provided in some embodiments of the present invention;

[0032] Figure 7This is a schematic diagram showing the unassembled components of the angle adjustment module provided in some embodiments of the present invention after the bracket has been removed.

[0033] The labels in the attached diagram are explained as follows:

[0034] 1-Angle adjustment module; 11-Bracket; 111-Bracket plate; 112-Cover plate; 113-Through hole; 114-Notch; 12-Drive shaft; 121-First end; 122-Second end; 123-Matching hole; 13-Limiting component; 131-First cylindrical section; 132-Second cylindrical section; 133-Protrusion; 134-Shaft hole; 14-Arc groove; 15-Slider; 16-Buffer component;

[0035] 2-Power module; 21-Power output section; 211-Output gear; 212-Central shaft; 22-First gear; 23-Positioning plate; 24-Second gear; 241-Axle; 25-Motor; 26-Housing; 27-Cover plate;

[0036] 3-Handrail; 31-Mounting hole;

[0037] 4-Frame plate.

[0038] It should be understood that the dimensions of the various parts shown in the accompanying drawings are not drawn to actual scale. Furthermore, the same or similar reference numerals denote the same or similar components. Detailed Implementation

[0039] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The descriptions of the exemplary embodiments are merely illustrative and are in no way intended to limit the present invention or its application or use. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present invention thorough and complete, and to fully express the scope of the present invention to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, the composition of materials, numerical expressions, and values ​​set forth in these embodiments should be interpreted as merely exemplary and not as limiting.

[0040] The terms "first," "second," and similar words used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Words such as "including" or "comprising" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0041] In this invention, when a specific device is described as being located between a first device and a second device, an intermediary device may or may not exist between the specific device and the first or second device. When a specific device is described as being connected to other devices, the specific device may be directly connected to the other devices without an intermediary device, or it may not be directly connected to the other devices but may have an intermediary device.

[0042] All terms used in this invention (including technical or scientific terms) have the same meaning as understood by one of ordinary skill in the art to which this invention pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0043] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0044] Figure 1 This is a structural schematic diagram of some embodiments of the armrest adjustment assembly according to this utility model. (Reference) Figure 1 In some embodiments, the armrest adjustment assembly includes an angle adjustment module 1 and a power module 2.

[0045] refer to Figure 2 The angle adjustment module 1 includes a bracket 11 and a drive shaft 12. The first end 121 of the drive shaft 12 is rotatably connected to the bracket 11, and the second end 122 of the drive shaft 12 is fixedly connected to the handrail 3. The drive shaft 12 rotates relative to the bracket 11 to drive the handrail 3 to flip up and down.

[0046] refer to Figure 3 An arc-shaped groove 14 and a slider 15 are provided between the bracket 11 and the drive shaft 12. The slider 15 is movably disposed within the arc-shaped groove 14. The arc-shaped groove 14 is configured to limit the stroke of the slider 15, thereby limiting the maximum rotation angle of the drive shaft 12 relative to the bracket 11, and thus limiting the maximum tilting angle of the armrest 3. Optionally, the arc-shaped groove 14 is disposed at the first end 121 of the drive shaft 12, and the slider 15 is disposed at the bracket 11; or, the arc-shaped groove 14 is disposed at the bracket 11, and the slider 15 is disposed at the first end 121 of the drive shaft 12.

[0047] The power module 2 includes a power output section 21, which is connected to the first end 121 of the drive shaft 12.

[0048] In the above embodiments, the number of sliders 15 can be one, two, or more. Optionally, the number of sliders 15 is two, corresponding to two arc-shaped grooves 14, with one slider 15 disposed in each arc-shaped groove 14. Preferably, the two sliders 15 are symmetrically arranged, and the two arc-shaped grooves 14 are symmetrically arranged, achieving large-angle limiting while ensuring structural strength.

[0049] In the above embodiment, the handrail adjustment component is modular, including an angle adjustment module 1 and a power module 2. The power output unit 21 is directly connected to the drive shaft 12 of the angle adjustment module 1, and the drive shaft 12 is directly connected to the handrail 3. The structure is simple, the installation is convenient and flexible, and it can be applied to different handrail projects. The speed can be adjusted through the power module 2 to meet the speed requirements of different users. The angle adjustment module 1 is used to adjust the flip angle and the maximum flip angle of the handrail 3 to meet different needs.

[0050] In the above embodiment, the bracket 11 of the angle adjustment module 1 is used to be fixedly connected to the seat, the first end of the drive shaft 12 is rotatably connected to the bracket 11, and the second end 122 of the drive shaft 12 is fixedly connected to the armrest 3. The drive shaft 12 directly drives the armrest 3 to flip. The structure is simple, occupies little space, and is conducive to the compactness of the overall structure.

[0051] In the above embodiment, a matching arc-shaped groove 14 and a slider 15 are provided between the bracket 11 and the drive shaft 12. During the rotation of the drive shaft 12 relative to the bracket 11, the slider 15 slides along the arc-shaped groove 14. The arc-shaped groove 14 restricts the stroke of the slider 15. Therefore, the tilting angle of the armrest 3 can be adjusted by the relative position of the arc-shaped groove 14 and the slider 15, and the maximum tilting angle of the armrest 3 is limited by restricting the stroke of the slider 15 by the arc-shaped groove 14. The arc-shaped groove 14 extends around the central axis of the drive shaft 12, and the arc length of the arc-shaped groove 14 can be set as needed. Therefore, it can meet the user's requirements for different maximum tilting angles of the armrest 3, has high adaptability, and low cost.

[0052] refer to Figure 4 and Figure 5 In some embodiments, the support 11 includes a support plate 111 and a cover plate 112.

[0053] The cover plate 112 is placed over the support plate 111, the first end 121 of the drive shaft 12 is located inside the cover plate 112, and the second end 122 of the drive shaft 12 passes through the cover plate 112 and is connected to the handrail 3.

[0054] In the above embodiment, the cover plate 112 covers the support plate 111. The first end 121 of the drive shaft 12, the arc groove 14 and the slider 15 are all located inside the cover plate 112. The cover plate 112 protects the first end 121 of the drive shaft 12, the arc groove 14 and the slider 15 located inside the cover plate 112. The support plate 111 is provided with a through hole corresponding to the connection position between the drive shaft 12 and the power output part 21, so that the power output part 21 can pass through the through hole and connect to the first end 121 of the drive shaft 12 to provide power for the rotation of the drive shaft 12.

[0055] In some embodiments, the arc-shaped groove 14 is provided on the drive shaft 12, and the slider 15 is provided on the bracket 11; or, the arc-shaped groove 14 is provided on the bracket 11, and the slider 15 is provided on the drive shaft 12. The slider 15 extends into the arc-shaped groove 14, and the drive shaft 12 rotates relative to the bracket 11, which enables the slider 15 to move relative to the arc-shaped groove 14.

[0056] refer to Figure 6 and Figure 7 In some embodiments, the first end 121 of the drive shaft 12 is configured as a flange with a radial dimension larger than that of the other shaft segments of the drive shaft 12, and an arcuate groove 14 is provided on the flange.

[0057] In the above embodiment, the first end 121 of the drive shaft 12 is constructed as a flange disk with a radial dimension larger than the other shaft segments of the drive shaft 12, so as to facilitate the arrangement of an arc groove 14 on the side of the flange disk near the armrest 3, the arc groove 14 extending around the axis of the drive shaft 12.

[0058] In some embodiments, the arc-shaped groove 14 is provided at the first end 121 of the drive shaft 12, and the slider 15 is provided on the bracket 11.

[0059] In the above embodiment, the arc-shaped groove 14 is provided at the first end 121 of the transmission shaft 12. The transmission shaft 12 rotates to drive the arc-shaped groove 14 to rotate. The slider 15 is provided on the bracket 11. The slider 15 is stationary. By adjusting the different positions of the slider 15 in the arc-shaped groove 14, the flip angle of the handrail 3 is adjusted. When the slider 15 touches and abuts the end of the arc-shaped groove 14, the maximum flip angle of the handrail 3 is achieved.

[0060] refer to Figures 4 to 7 In some embodiments, the armrest adjustment assembly further includes a limiting member 13. The bracket 11 is provided with a through hole 113, the limiting member 13 passes through the through hole 113, and a limiting structure is provided between the limiting member 13 and the through hole 113 to restrict the limiting member 13 from rotating with the drive shaft 12. The limiting member 13 is provided with a shaft hole 134 that allows the drive shaft 12 to pass through. The slider 15 is provided on the limiting member 13.

[0061] In the above embodiment, the drive shaft 12 passes through the shaft hole 134 of the limiting member 13, the limiting member 13 passes through the through hole 113 on the bracket 11, and a limiting structure is provided between the limiting member 13 and the through hole 113 to restrict the limiting member 13 from rotating with the drive shaft 12. Therefore, the limiting member 13 is fixed relative to the bracket 11, the drive shaft 12 rotates relative to the limiting member 13, the slider 15 is provided on the limiting member 13, and the arc groove 14 is provided on the first end 121 of the drive shaft 12. The arc groove 14 rotates with the drive shaft 12 so that the slider 15 slides in the arc groove 14.

[0062] In the above embodiments, the limiting member 13 can also be integrated with the bracket 11 and become part of the bracket 11. Therefore, the limiting member 13 can also be fixedly installed on the bracket 11.

[0063] In some embodiments, the limiting structure includes a through hole 113 configured to have multiple corner portions, and multiple protrusions 133 disposed on the outer periphery of the limiting member 13. The limiting member 13 passes through the through hole 113, and the multiple protrusions 133 are respectively adapted to the multiple corner portions.

[0064] In the above embodiment, the limiting member 13 is provided with a plurality of protrusions 133 on its outer periphery, and the through hole 113 is constructed to have a plurality of corner portions. The plurality of protrusions 133 extend into the plurality of corner portions one by one, so that the plurality of protrusions 133 and the plurality of corner portions are respectively adapted and limited, so that the limiting member 13 can be fixed relative to the bracket 11.

[0065] In some embodiments, the through hole 113 can be a quadrilateral through hole, a pentagonal through hole, or a hexagonal through hole, etc., with two adjacent sides connected to form a corner.

[0066] refer to Figure 4 and Figure 7 In some embodiments, the limiting member 13 includes a first cylindrical segment 131 and a second cylindrical segment 132, the radial dimension of the second cylindrical segment 132 is greater than the radial dimension of the first cylindrical segment 131, the protrusion 133 is provided on the first cylindrical segment 131, the slider 15 is provided on the second cylindrical segment 132, and the radial dimension of the second cylindrical segment 132 is greater than the radial dimension of the through hole 113.

[0067] In the above embodiment, the first cylindrical segment 131 passes through the through hole 113 and is limited by the protrusion 133 on the first cylindrical segment 131 and the corner of the through hole 113 to prevent the limiting member 13 from rotating with the drive shaft 12. The radial dimension of the second cylindrical segment 132 is larger than the radial dimension of the through hole 113. The second cylindrical segment 132 is located inside the cover plate 112. The slider 15 on the second cylindrical segment 132 extends toward the first end 121 of the drive shaft 12 and extends into the arc groove 14 provided at the first end 121.

[0068] In some embodiments, the second cylindrical segment 132 abuts against the cover plate 112 on one side connected to the first cylindrical segment 131. A slider 15 is provided on the side of the second cylindrical segment 132 away from the first cylindrical segment 131. The slider 15 extends toward the first end 121 of the drive shaft 12 and enters the arcuate groove 14 provided in the first end 121. The side of the second cylindrical segment 132 away from the first cylindrical segment 131 abuts against the first end 121 of the drive shaft 12. The first end 121 of the drive shaft 12 can be axially limited by the second cylindrical segment 132 and the cover plate 112.

[0069] In some embodiments, the radial dimension of the first end 121 of the drive shaft 12 is greater than the radial dimension of the second cylindrical segment 132. The second end 122 of the drive shaft 12 passes sequentially through the second cylindrical segment 132, the cover plate 112 and the first cylindrical segment 131.

[0070] In the above embodiment, the arc groove 14 is provided on the side of the first end 121 near the limiting member 13, and the slider 15 provided on the second cylindrical section 132 of the limiting member 13 extends toward the first end 121 and into the arc groove 14 provided on the first end 121.

[0071] In some embodiments, the armrest adjustment assembly further includes a buffer 16, which is fitted to the outer periphery of the first end 121 of the drive shaft 12 and connected to the bracket 11.

[0072] In the above embodiment, the buffer 16 is disposed inside the cover plate 112. The buffer 16 is interference-fitted with the drive shaft 12 and connected to the bracket 11. During the rotation of the drive shaft 12, the buffer 16 can provide a force opposite to the rotation direction of the drive shaft 12, buffering the rotation of the drive shaft 12, making the process of the handrail 3 flipping and resetting more stable. It can also be used to eliminate the structural gaps between the buffer 16 and the drive shaft 12, and between the drive shaft 12 and the bracket 11, reducing loosening and improving the stability and comfort of the overall structure.

[0073] In some embodiments, the buffer 16 includes a torsion spring, a damping plate, or other components that can increase the reverse resistance.

[0074] In some embodiments, the buffer 16 includes a torsion spring, which is interference-fitted onto the outer periphery of the first end 121 of the drive shaft 12, and the end of the torsion spring is inserted into a notch 114 provided on the bracket 11 to achieve connection with the bracket 11.

[0075] In some embodiments, the drive shaft 12 is coaxially arranged with the power output unit 21.

[0076] In the above embodiment, the drive shaft 12 is coaxial with the power output unit 21, which can improve the comfort of the armrest 3's tilt angle adjustment, meet the usage requirements of large angle adjustment, and improve the structural strength.

[0077] In some embodiments, the first end 121 of the drive shaft 12 is provided with a mating hole 123, and the power output part 21 is provided with an output tooth 211 for inserting into the mating hole 123 and for being drivenly connected to the mating hole 123.

[0078] In the above embodiment, the power output section 21 is provided with an output tooth 211, which is inserted into the mating hole 123 of the drive shaft 12 and meshes with the mating hole 123 to transmit power to the drive shaft 12.

[0079] In some embodiments, the mating hole 123 may be a spline, a toothed groove, or other mating structure.

[0080] Some embodiments of this utility model also provide a seat armrest, which includes an armrest 3 and the aforementioned armrest adjustment assembly. The drive shaft 12 in the armrest adjustment assembly is directly fixedly connected to the armrest 3.

[0081] In the above embodiments, the method of directly driving the handrail 3 through the drive shaft 12 is simple in structure and small in size, which can improve the compactness and structural strength of the overall structure.

[0082] In some embodiments, the handrail 3 is provided with a mounting hole 31, and the second end 122 of the drive shaft 12 passes through the mounting hole 31 and is fixedly connected to the mounting hole 31.

[0083] In the above embodiments, the drive shaft 12 is directly inserted into the mounting hole 31 on the handrail 3 and fixedly connected to the mounting hole 31, which is convenient for assembly. Therefore, the handrail adjustment assembly provided in this embodiment can be applied to different handrail projects and has good applicability.

[0084] Some embodiments of this utility model also provide a vehicle seat, which includes a seat, an armrest 3, and the aforementioned armrest adjustment assembly. The bracket 11 in the armrest adjustment assembly is fixedly connected to the seat, and the drive shaft 12 is directly fixedly connected to the armrest 3.

[0085] In the above embodiment, the bracket 11 is fixedly connected to the seat, the power output part 21 of the power module 2 passes through the bracket 11 and is connected to the first end 121 of the drive shaft 12, and the second end 122 of the drive shaft 12 is fixedly connected to the armrest 3.

[0086] In some embodiments, the seat includes a frame plate 4, an angle adjustment module 1 is located on the side of the frame plate 4 near the armrest 3, and a power module 2 is located on the side of the frame plate 4 away from the armrest 3.

[0087] The specific method for setting the angle adjustment module 1 on the frame plate 4 is as follows: the bracket plate 111 of the bracket 11 is fixed on the frame plate 4 so that the angle adjustment module 1 is fixed on the frame plate 4, and the part of the first end 121 of the transmission shaft 12 with the mating hole 123 passes through the bracket plate 111 and is nested in the mounting hole of the frame plate 4, so that the angle adjustment module 1 is more stable as a whole.

[0088] In the above embodiment, the angle adjustment module 1 and the power module 2 are arranged on the inner and outer sides of the frame plate 4, respectively. The space utilization of the inner and outer sides is more reasonable, avoiding the problem that all components are arranged on the inner side of the frame plate 4, which occupies a lot of space and affects the comfort of use.

[0089] In other embodiments, the seat includes a frame plate 4, with the angle adjustment module 1 and the power module 2 both located on the side of the frame plate 4 near the armrest 3.

[0090] In other embodiments, the seat includes a frame plate 4, with the angle adjustment module 1 and the power module 2 both located on the side of the frame plate 4 away from the armrest 3.

[0091] In the above embodiments, the angle adjustment module 1 and the power module 2 are relatively independent. The modular design makes the placement of the angle adjustment module 1 and the power module 2 relatively flexible, which is more conducive to the rational use of vehicle space.

[0092] In embodiments of this utility model, the power module 2 may include a motor and a gear transmission structure. The gear transmission structure may adopt different transmission forms, as long as it can achieve the functions of reducing torque and adjusting speed.

[0093] The following is a specific embodiment of the power module 2.

[0094] refer to Figure 3 The power module 2 also includes a power output unit 21, a first gear 22, a positioning plate 23, a second gear 24, a motor 25, a housing 26, and a cover plate 27.

[0095] The housing 26 and the cover plate 27 can be interlocked to form an accommodating space. The cover plate 27 is used to fix the power module 2 to the frame plate 4. The first gear 22, the positioning plate 23, and the second gear 24 are disposed within the accommodating space. The first gear 22 and the second gear 24 are located on both sides of the positioning plate 23, with the first gear 22 closer to the cover plate 27 relative to the second gear 24. A limiting structure is provided between the positioning plate 23 and the housing 26, which is configured to allow the positioning plate 23 to move horizontally and vertically relative to the housing 26. A snap-fit ​​structure is provided between the positioning plate 23 and the first gear 22, which allows the positioning plate 23 to drive the first gear 22 to move horizontally and vertically. A portion of the power output unit 21 is located within the accommodating space, with the power output unit 21 closer to the cover plate 27 relative to the first gear 22. Output teeth 211 are located on the side of the power output section 21 near the cover plate 27, with most of the output teeth 211 extending to the outside of the cover plate 27. They are used to pass sequentially through the frame plate 4 and the bracket 11 to connect to the drive shaft 12. A central shaft 212 is located on the side of the power output section 21 away from the cover plate 27. The motor 25 is located outside the receiving space and is mounted on the housing 26. The output shaft of the motor 25 can be driven to the second gear 24 via a worm gear. The second gear 24 is an external gear, and a wheel axle 241 is located in the middle of the second gear 24. The wheel axle 241 is an eccentric shaft with a shaft hole extending along the central axis of the second gear 24. The wheel axle 241 passes sequentially through the positioning plate 23 and the first gear 22, and the central shaft 212 is inserted into the shaft hole of the wheel axle 241. The power output unit 21 is also provided with an internal gear ring, and the first gear 22 is located inside the internal gear ring. The internal gear ring meshes with the external gear of the first gear 22, and the internal gear ring and the first gear 22 are constructed as a small differential gear transmission structure.

[0096] The transmission process of the power module 2 is as follows: the motor 25 provides power, which drives the second gear 24 to rotate through the worm gear. The second gear 24 drives the axle 241 to rotate. Since the axle 241 is an eccentric shaft, during the rotation of the axle 241, it can drive the positioning plate 23 to move up, down, left, and right relative to the housing 26. The positioning plate 23 is engaged with the first gear 22. Therefore, the positioning plate 23 can drive the first gear 22 to move up, down, left, and right. Furthermore, since the first gear 22 is an external gear and is located in the internal gear ring of the power output section 21, the relative motion between the first gear 22 and the internal gear ring is the revolution of the first gear 22 relative to the internal gear ring. The first gear 22 does not rotate on its own axis. The first gear 22 meshes with the internal gear ring, and the transmission between the first gear 22 and the internal gear ring is a small difference tooth transmission. Therefore, the translation of the first gear 22 can be converted into the rotation of the internal gear ring, thereby causing the entire power output section 21 to rotate. The corresponding output teeth 211 rotate to drive the transmission shaft 12 to rotate.

[0097] In the above embodiment, the power module 2 provides power to the angle adjustment module 1, and the power module 2 can adjust the speed and torque. The angle adjustment module 1 no longer needs to be equipped with components such as gearboxes, which can reduce the number of parts, reduce weight, improve the overall structural strength and rigidity, and facilitate the compact arrangement of the seat armrests.

[0098] The following is based on the appendix Figures 1 to 7 The assembly process of the armrest adjustment assembly is described in detail, as well as the assembly process of the armrest adjustment assembly, armrest, and seat.

[0099] For the assembly of the armrest adjustment components, please refer to... Figure 6 and Figure 7 :

[0100] The torsion spring is interference-fitted onto the flange of the first end 121 of the drive shaft 12; the drive shaft 12 passes through the shaft hole 134 of the limiting member 13, so that the second cylindrical section 132 of the limiting member 13 abuts against the flange, and the slider 15 on the second cylindrical section 132 is inserted into the arc groove 14 provided on the flange; the flange of the drive shaft 12 and the limiting member 13 are placed inside the cover plate 112 of the bracket 11 from one side of the bracket plate 111 of the bracket 11, the end of the torsion spring is locked in the notch 114 of the bracket 11, the second end of the drive shaft 12 passes through the through hole 113 and exits the cover plate 112, and part of the first cylindrical section 131 of the limiting member 13 also passes through the through hole 113 and exits the cover plate 112, the protrusion 133 provided on the first cylindrical section 131 and the corner of the through hole 113 are adapted to each other, so that the limiting member 13 and the bracket 11 are relatively fixed. One side of the second cylindrical section 132 abuts against the flange plate, and the other side of the second cylindrical section 132 abuts against the cover plate 112. The drive shaft 12 passes through the shaft hole 134 of the limiting member 13, exceeds the first cylindrical section 131, and is used to connect to the handrail 3.

[0101] Assembly of armrest adjustment components, armrests, and seat:

[0102] refer to Figure 2 The bracket plate 111 of the bracket 11 is fixed to the frame plate 4, so that the angle adjustment module 1 is fixed to the frame plate 4. The part of the first end 121 of the drive shaft 12 with the mating hole 123 passes through the bracket plate 111 and is nested in the mounting hole of the frame plate 4. The output tooth 211 of the power module 2 passes through the frame plate 4 and the bracket plate 111 and is inserted into the mating hole 123 of the drive shaft 12. The cover plate 27 of the power module 2 is fixed to the frame plate 4, so that the power module 2 is fixed to the frame plate 4. The drive shaft 12 of the angle adjustment module 1 is inserted into the mounting hole 31 of the handrail 3 and fixedly connected to the mounting hole 31, so that the angle adjustment module 1 and the handrail 3 are fixedly connected.

[0103] The modular design of the handrail adjustment component provided in this embodiment includes a relatively independent angle adjustment module 1 and a power module 2, which is convenient for disassembly and installation. The layout on both sides of the frame plate 4 is more flexible, saving space and can be flexibly applied to different handrail projects. The speed can be adjusted by the power module 2 to meet the speed requirements of different customers, and the flip angle of the handrail 3 can be adjusted by the angle adjustment module 1 to meet different maximum flip angle requirements.

[0104] Based on the above embodiments of the present invention, in the absence of explicit denial or conflict, the technical features of one embodiment can be advantageously combined with one or more other embodiments.

[0105] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. An armrest adjustment assembly, characterized in that, include: Angle adjustment module (1) includes a bracket (11) and a drive shaft (12). The first end (121) of the drive shaft (12) is rotatably connected to the bracket (11), and the second end (122) of the drive shaft (12) is configured to be fixedly connected to the handrail (3). An arc groove (14) and a slider (15) are provided between the bracket (11) and the drive shaft (12). The slider (15) is movably disposed in the arc groove (14), and the arc groove (14) is configured to limit the maximum rotation angle of the drive shaft (12) relative to the bracket (11). as well as The power module (2) includes a power output section (21) connected to the first end (121) of the drive shaft (12).

2. The armrest adjustment assembly according to claim 1, characterized in that, The support (11) includes: Support plate (111); and A cover plate (112) is provided on the support plate (111). The first end (121) of the drive shaft (12) is located inside the cover plate (112), and the second end (122) of the drive shaft (12) passes through the cover plate (112) and is connected to the handrail (3).

3. The armrest adjustment assembly according to claim 1, characterized in that, The first end (121) of the drive shaft (12) is constructed as a flange disk with a radial dimension larger than that of the other shaft segments of the drive shaft (12), and the arcuate groove (14) is provided on the flange disk.

4. The armrest adjustment assembly according to any one of claims 1 to 3, characterized in that, The arc-shaped groove (14) is provided at the first end (121) of the transmission shaft (12), and the slider (15) is provided on the bracket (11).

5. The armrest adjustment assembly according to any one of claims 1 to 3, characterized in that, It also includes a limiting member (13), the bracket (11) is provided with a through hole (113), the limiting member (13) passes through the through hole (113), a limiting structure is provided between the limiting member (13) and the through hole (113) to restrict the limiting member (13) from rotating with the transmission shaft (12), the limiting member (13) is provided with a shaft hole (134) that allows the transmission shaft (12) to pass through; the slider (15) is provided on the limiting member (13).

6. The armrest adjustment assembly according to claim 5, characterized in that, The limiting structure includes a through hole (113) configured to have multiple corner portions, and multiple protrusions (133) disposed on the outer periphery of the limiting member (13). The limiting member (13) passes through the through hole (113), and the multiple protrusions (133) are adapted to the multiple corner portions one by one.

7. The armrest adjustment assembly according to claim 6, characterized in that, The limiting member (13) includes a first cylindrical segment (131) and a second cylindrical segment (132). The radial dimension of the second cylindrical segment (132) is greater than the radial dimension of the first cylindrical segment (131). The protrusion (133) is provided on the first cylindrical segment (131). The slider (15) is provided on the second cylindrical segment (132). The radial dimension of the second cylindrical segment (132) is greater than the radial dimension of the through hole (113).

8. The armrest adjustment assembly according to claim 7, characterized in that, The radial dimension of the first end (121) of the drive shaft (12) is greater than the radial dimension of the second cylindrical segment (132).

9. The armrest adjustment assembly according to any one of claims 1 to 3, characterized in that, It also includes a buffer (16), which is fitted to the outer periphery of the first end (121) of the drive shaft (12) and is connected to the bracket (11).

10. The armrest adjustment assembly according to any one of claims 1 to 3, characterized in that, The drive shaft (12) is coaxially arranged with the power output unit (21).

11. The armrest adjustment assembly according to any one of claims 1 to 3, characterized in that, The first end (121) of the drive shaft (12) is provided with a mating hole (123), and the power output part (21) is provided with an output tooth (211) for inserting into the mating hole (123) and for being connected to the mating hole (123) in a transmission.

12. A type of armrest for a seat, characterized in that, It includes a handrail (3) and a handrail adjustment assembly according to any one of claims 1 to 11.

13. The armrest of the seat according to claim 12, characterized in that, The handrail (3) is provided with a mounting hole (31), and the second end (122) of the drive shaft (12) passes through the mounting hole (31) and is fixedly connected to the mounting hole (31).

14. A vehicle seat, characterized in that, Includes a seat, armrests (3) and an armrest adjustment assembly according to any one of claims 1 to 11, wherein the bracket (11) is fixedly connected to the seat.

15. The vehicle seat according to claim 14, characterized in that, The seat includes a frame plate (4), the angle adjustment module (1) is located on the side of the frame plate (4) near the armrest (3), and the power module (2) is located on the side of the frame plate (4) away from the armrest (3).

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