Armrest assembly, seat and vehicle

Abstract

The utility model provides an armrest assembly, a seat and a vehicle. The seat comprises an armrest assembly and a support, wherein the armrest assembly comprises a driving part, the driving part is configured to be an assembling unit, and the driving part is installed on the inner side of the support and used for providing driving force; the adjusting part is configured to be an assembling unit and comprises a fixed disc and a movable disc, the fixed disc is fixedly connected with the support, and the movable disc is rotatably connected with the fixed disc; the bearing part is configured to be an assembly unit and is provided with a bearing surface used for bearing an arm; and the first shaft piece extends into the driving part and the adjusting part, so that the driving part is in transmission connection with the movable disc, and the driving part can drive the movable disc to rotate relative to the fixed disc.

Description

Technical Field

[0001] This application relates to an armrest assembly, a seat, and a vehicle. Background Technology

[0002] Today, seating products (such as car seats) are equipped with electrically adjustable armrests to meet the personalized needs of occupants and enhance the user experience.

[0003] However, the existing technical problems of adjustable handrails in this field include, but are not limited to, low modularity of internal adjustment structure, high design and manufacturing costs, poor assemblability, maintainability and versatility; and also problems such as low structural strength and poor reliability. In view of this, the inventors of this application propose a new handrail component, seat and vehicle to solve at least one or a combination of the above technical problems. Utility Model Content

[0004] The purpose of this application is to provide a seat.

[0005] Another objective of this application is to provide a means of transportation.

[0006] Another objective of this application is to provide a handrail assembly.

[0007] A seat according to a first aspect of this application includes an armrest assembly and a support; wherein the armrest assembly includes: a drive unit configured as an assembly unit and mounted inside the support for providing driving force; an adjustment unit configured as an assembly unit and including a fixed plate and a movable plate, the fixed plate being fixedly connected to the support and the movable plate being rotatably connected to the fixed plate; a support unit configured as an assembly unit and having a support surface for supporting an arm; a first shaft extending into the drive unit and the adjustment unit, such that the drive unit is driveably connected to the movable plate, thereby enabling the drive unit to drive the movable plate to rotate relative to the fixed plate; and a second shaft fixedly connected to the movable plate and extending into the support unit, such that the support unit can be rotated by the movable plate.

[0008] The above seats adopt a modular design, dividing the armrest assembly into three relatively independent assembly units (modular components): a drive unit, an adjustment unit, and a support unit. This allows the three relatively independent assembly units to be manufactured and pre-assembled separately, and then integrated onto the seat frame via two drive shafts. This simplifies assembly operations and the production process. Each assembly unit and drive shaft can be replaced individually, avoiding the need to disassemble other structures, thus improving maintainability. Furthermore, the modular design is suitable for standardizing the connection structure between assembly units, thereby improving the overall versatility of the armrest assembly and individual units. The design using a first and second shaft ensures stable and reliable transmission between the three units, and the drive shafts can also be replaced individually. The second shaft, inserted into the support unit, ensures that the rotational power is evenly distributed in the support unit and provides effective support for the load on the occupant's arms. This results in a structure with high strength and rigidity, improving reliability and user experience.

[0009] In one or more embodiments of the seat, a first end of the first shaft passes through the drive unit and is fitted with a retaining ring that abuts against the drive unit; a second end of the first shaft passes through the adjustment unit and extends out to abut against the adjustment unit; a first end of the second shaft is fixedly connected to the movable disc and provides a receiving space; and a second end of the first shaft extends into the receiving space.

[0010] In one or more embodiments of the seat, the first protrusion and the second end of the first shaft are configured as an integrally plastically formed structure.

[0011] In one or more embodiments of the seat, the drive unit has a first hole, the adjustment unit has a second hole, the first hole and the second hole have the same profile, and the first shaft has a first transmission section extending into the first hole and the second hole, the first transmission section having a single cross-sectional shape and matching the profile.

[0012] In one or more embodiments of the seat, the first end of the second shaft member is provided with a plurality of second protrusions extending radially, and the movable disc is correspondingly provided with a plurality of limiting portions that contact the second protrusions.

[0013] In one or more embodiments of the seat, a third hole is formed on a first side of the support portion; a second shaft extends into the support portion from the third hole; a second transmission section is provided at a second end of the second shaft, and a mounting hole is provided on the end face; the third hole matches the second transmission section so that driving force is transmitted from the second shaft to the support portion; a fastener passes through the support portion from a second side opposite to the first side and is fixedly connected to the mounting hole.

[0014] In one or more embodiments of the seat, the first end and the second end of the second shaft are separately formed; wherein the first end of the second shaft provides a receiving space and is provided with a second protrusion; the second end of the second shaft is provided with a second transmission section and a mounting hole.

[0015] In one or more embodiments of the seat, the drive unit includes a motor and a transmission member connected to the motor, the transmission member having a first hole matching the first shaft member to transmit driving force; and / or, the adjustment unit is disposed on the outside of the bracket, and the bracket has a groove to provide a mounting position for the adjustment unit, the drive unit and the adjustment unit at least partially overlapping in the thickness direction; and / or, the second shaft member extends from a first side into the support portion, a fastener passes through the support portion from a second side opposite to the first side and is fixedly connected to the second shaft member, and an appearance member is disposed on the second side to cover the fastener; and / or, a first end of the second shaft member is welded to the movable disc; and / or, the fixed disc is welded to the bracket; and / or, the bracket is provided with a drive unit mounting plate, the drive unit being detachably connected to the drive unit mounting plate via drive unit fasteners.

[0016] A means of transport according to a second aspect of this application includes the seat described above.

[0017] According to a third aspect of this application, an armrest assembly for a seat includes: a drive unit configured as an assembly unit and mounted on the inner side of a support frame of the seat for providing driving force; an adjustment unit configured as an assembly unit and including a fixed plate and a movable plate, the fixed plate being fixedly connected to the support frame and the movable plate being rotatably connected to the fixed plate; a support unit configured as an assembly unit and having a support surface for supporting an arm; a first shaft extending into the drive unit and the adjustment unit such that the drive unit is drively connected to the movable plate, thereby driving the movable plate to rotate relative to the fixed plate; and a second shaft fixedly connected to the movable plate and extending into the support unit such that the support unit is driven by the movable plate. Attached Figure Description

[0018] The above and other features, properties, and advantages of this application will become more apparent from the following description taken in conjunction with the accompanying drawings and embodiments, in which the same reference numerals always denote the same features. It should be noted that these drawings are merely illustrative and are not drawn to scale, and should not be construed as limiting the scope of protection actually claimed by this application, wherein:

[0019] Figure 1 This is a structural schematic diagram of a vehicle and its seat according to one embodiment.

[0020] Figure 2 This is a schematic diagram of the assembly structure of a handrail assembly according to one embodiment.

[0021] Figure 3 This is an exploded structural diagram of a handrail assembly according to one embodiment.

[0022] Figure 4 This is a cross-sectional structural diagram of a handrail assembly according to one embodiment.

[0023] Figure 5 This is a partial structural schematic diagram of a handrail assembly according to one embodiment.

[0024] Figure 6 This is a schematic diagram of the structure of the first shaft member in one embodiment.

[0025] Figure label:

[0026] 1. Means of transportation;

[0027] 10. Seats;

[0028] 100. Handrail assembly; 110. Drive unit; 111. First hole; 112. Motor; 113. Transmission component; 114. Drive unit fastener; 120. Adjustment unit; 121. Fixed plate; 122. Movable plate; 123. Second hole; 124. Limiting part; 130. Support part; 131. Support surface; 132. First side of the support part; 133. Second side of the support part; 134. Third hole; 140. First shaft; 141. First end of the first shaft; 142. Second end of the first shaft; 143. Retaining ring; 144. First protrusion; 145. First transmission section; 150. Second shaft; 151. First end of the second shaft; 152. Second end of the second shaft; 153. Accommodation space; 154. Second protrusion; 155. Second transmission section; 156. Mounting hole;

[0029] 200. Bracket; 201. Groove; 202. Drive unit mounting plate. Detailed Implementation

[0030] Reference will now be made in detail to various embodiments of this application, examples of which are shown in the accompanying drawings and described below. Although this application will be described in conjunction with exemplary embodiments, it should be understood that this application is not intended to be limited to those exemplary embodiments. Rather, this application is intended to cover not only these exemplary embodiments, but also various alternatives, modifications, equivalents, and other embodiments that may be included within the spirit and scope of this application as defined by the appended claims.

[0031] This application uses specific terms to describe embodiments of the application. For example, "an embodiment" and / or "one embodiment" refers to a feature, structure, or characteristic associated with at least one embodiment of the application. Therefore, it should be emphasized and noted that "an embodiment" or "one embodiment" mentioned twice or more in different locations in this application does not necessarily refer to the same embodiment. Furthermore, certain features, structures, or characteristics in one or more embodiments of the application can be appropriately combined. In the following description, the orientation or positional relationship indicated by terms such as "upper," "lower," "inner," "outer," "front," "rear," or other directional terms is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the device or component referred to must have a specific orientation, be constructed and / or implemented in a specific orientation, and therefore should not be construed as a limitation of the application. In this application, the terms "first," "second," etc., are only used for distinguishing descriptions and should not be construed as indicating or implying positional relationships or order of importance. In the following description, unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly; for example, they can refer to fixed connections or movable connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0032] It is understood that the seat and armrest components provided in this application are particularly suitable for automobiles, but can also be applied to other applicable occasions, such as rail trains, ships, and aircraft, as well as applicable fixed places, such as meeting rooms, auditoriums, and cinemas. As long as the seat can use the armrest components disclosed in the embodiments of this application, it is not limited thereto.

[0033] like Figure 1 A type of seat 10 is shown, which includes an armrest assembly 100 and a support 200 (e.g., a side support for the backrest); as Figures 2 to 6The armrest assembly 100 shown includes: a drive unit 110, configured as an assembly unit and installed inside the bracket 200, i.e., inside the seat 10, for providing driving force; an adjustment unit 120, configured as an assembly unit and including a fixed plate 121 and a movable plate 122, the fixed plate 121 being fixedly connected to the bracket 200, and the movable plate 122 being rotatably connected to the fixed plate 121; and a support unit 130, configured as an assembly unit... The unit includes a support surface 131 for supporting the arm; a first shaft 140 extending into the drive unit 110 and the adjustment unit 120, such that the drive unit 110 is connected to the movable disk 122, thereby enabling the drive unit 110 to drive the movable disk 122 to rotate relative to the fixed disk 121; and a second shaft 150 fixedly connected to the movable disk 122 and extending into the support unit 130, such that the support unit 130 can be rotated by the movable disk 122.

[0034] Specifically, the assembly unit mentioned here refers to a relatively independent assembly, also known as a modular component or functional module, which can be installed (and removed) entirely from the seat's support frame; such as Figure 2 As shown, the drive unit 110 mentioned here refers to a device that provides rotational power, thereby enabling automatic adjustment of the armrest without manual adjustment. The drive unit 110 is generally equipped with a motor 112, but the drive unit 110 can also have other structures, such as a pneumatic device, a hydraulic device to provide driving force, or a linear drive device that provides rotational power at the output end through a transmission mechanism, and is not limited thereto. The adjustment unit 120 refers to an angle adjustment device applicable to the seat 10, which provides angle adjustment through the relative rotation of the movable plate 122 and the fixed plate 121, and bears force when the movable plate 122 and the fixed plate 121 are locked relative to each other. The adjustment unit 120 can be configured similar to the concept of an "angle adjuster" commonly used in the art, which will not be described in detail here. The bracket 200 has a through hole at the corresponding position, and the first shaft 140 passes through the through hole and connects the drive unit 110 and the adjustment unit 120 at both ends respectively; the support part 130, that is, the main body of the armrest, is used to support the occupant's arm. Both the first shaft member 140 and the second shaft member 150 are rotating shaft members capable of transmitting rotational power. The first shaft member 140 can be configured with a cross-sectional shape having an output end that matches the drive unit 110 and an input end that matches the adjustment unit 120. For example, it can be a square shaft, a polygonal shaft, or an irregularly shaped shaft. It can also be connected by a key or a coupling, and is not limited thereto. The second shaft member 150 can be configured with a cross-sectional shape having an input end that matches the support unit 130, or other structures similar to the first shaft member 140, which will not be described in detail here.

[0035] The seat 10 adopts a modular design, dividing the armrest assembly 100 into three relatively independent assembly units (modular components): a drive unit 110, an adjustment unit 120, and a support unit 130. This allows the three relatively independent assembly units to be manufactured and pre-assembled separately, and then integrated onto the bracket 200 of the seat 10 via two drive shafts. This simplifies the assembly operation and production process. Each assembly unit and drive shaft can be replaced individually, avoiding the need to disassemble other structures, thus improving maintainability. Furthermore, the modular design is suitable for improving the overall versatility of the armrest assembly 100 and each module through the standardization of the connection structure between modules. The design of the first shaft 140 and the second shaft 150 ensures stable and reliable transmission between the three assembly units, and each unit can be replaced individually. The second shaft 150, which penetrates into the support unit, also ensures that the rotational power is evenly distributed inside the support unit and provides effective support for the load on the arms. This results in a structure with high strength and rigidity, improving reliability and user experience.

[0036] like Figure 4 As shown, in one or more embodiments, the first end 141 of the first shaft member 140 passes through the drive portion 110 and is fitted with a retaining ring 143 that abuts against the drive portion 110; the second end 142 of the first shaft member 140 passes through the adjustment portion 120 and extends out a first protrusion 144 that abuts against the adjustment portion 120; the first end 151 of the second shaft member 150 is fixedly connected to the movable disk 122 and provides a receiving space 153; the second end 142 of the first shaft member 140 extends into the receiving space 153. The first shaft member 140 passes through the drive portion 110 and the adjustment portion 120, that is, both ends of the first shaft member 140 extend out of the drive portion 110 and the adjustment portion 120 with reserved shaft sections, which is advantageous for matching drive portions 110 and / or adjustment portions 120 of different thicknesses, thereby improving the versatility of the first shaft member 140; the design of the retaining ring 143 and the first protrusion 144 facilitates assembly and limits the movement of the first shaft member 140 in two opposite directions, preventing it from falling out of the installation position.

[0037] like Figure 6 As shown, in one or more embodiments, the first protrusion 144 and the second end 142 of the first shaft 140 are configured as an integrally plastically formed structure; for example, the first protrusion 144 is cold-forged from the second end 142 of the first shaft 140, which is beneficial to ensure mass production quality and save costs.

[0038] like Figure 4 , Figure 6As shown, in one or more embodiments, the drive unit 110 is provided with a first hole 111, the adjustment unit 120 is provided with a second hole 123, the first hole 111 and the second hole 123 have the same profile, and the first shaft member 140 is provided with a first transmission section 145 extending into the first hole 111 and the second hole 123. The first transmission section 145 has a single cross-sectional shape and matches the profile; in other words, the first shaft member 140 is generally configured as a shaft with a uniform cross-section to facilitate assembly, reduce the difficulty of processing and manufacturing, and save costs.

[0039] like Figure 5 As shown, in one or more embodiments, the first end 151 of the second shaft 150 is provided with a plurality of second protrusions 154 extending radially, and the movable disk 122 is correspondingly provided with a plurality of limiting portions 124 that contact the second protrusions 154; the plurality of limiting portions 124 and the plurality of second protrusions 154 cooperate to limit rotation and load bearing, so that the load is evenly distributed and the connection strength and reliability are improved.

[0040] like Figure 2 As shown, in one or more embodiments, a third hole 134 is formed on the first side 132 of the support portion 130; a second shaft 150 extends into the support portion 130 from the third hole 134; a second transmission section 155 is provided at the second end 152 of the second shaft 150, and a mounting hole 156 is provided on the end face; the third hole 134 matches the second transmission section 155 so that driving force is transmitted from the second shaft 150 to the support portion 130; a fastener, such as a bolt, passes through the support portion 130 from the second side 133 opposite to the first side 132 and is fixedly connected to the mounting hole 156. This design allows the support portion 130 to be installed in place and the fasteners to be tightened in the same direction, and eliminates the need to disassemble the support portion 130, simplifying the assembly process.

[0041] In one or more embodiments, the first end 151 and the second end 152 of the second shaft member 150 are separately formed; wherein, the first end 151 of the second shaft member 150 provides a receiving space 153 and is provided with a second protrusion 154; the second end 152 of the second shaft member 150 is provided with a second transmission section 155 and a mounting hole 156; compared with the integrally formed second shaft member 150, the separate forming is more conducive to reducing the processing difficulty and saving costs.

[0042] like Figure 3As shown, in one or more embodiments, the drive unit 110 includes a motor 112 and a transmission member 113 connected to the motor 112. The transmission member 113 is provided with a first hole 111 that matches the first shaft member 140 to transmit driving force. The transmission member 113 can be configured as a rotating member, such as an output gear, and has the first hole 111 at the center position. Several intermediate transmission members 113, such as worm gears or worm shafts, can also be configured between the motor 112 and the output gear to form a concept similar to the "geared motor" commonly used in the art. The transmission member 113 can also be independently encapsulated in a gearbox relative to the motor 112 for easy replacement, and is not limited thereto.

[0043] like Figures 2 to 4 As shown, the adjustment part 120 is disposed on the outside of the bracket 200, and the bracket 200 is provided with a groove 201 to provide a mounting position for the adjustment part 120. The drive part 110 and the adjustment part 120 overlap at least partially in the thickness direction to save space in the thickness direction.

[0044] In some embodiments, the second shaft 150 extends from the first side 132 into the support portion 130, and the fastener passes through the support portion 130 from the second side 133 opposite to the first side 132 and is fixedly connected to the second shaft 150. An appearance part is provided on the second side 133 to cover the fastener and the mounting hole 156. With this design, the appearance part only needs to have a small area to cover the fasteners such as bolts and the mounting hole 156, making the handrail assembly 100 aesthetically pleasing.

[0045] In some embodiments, the first end 151 of the second shaft 150 may also be welded to the movable disk 122; and / or, the fixed disk 121 may be welded to the bracket 200; and / or, the bracket 200 may be provided with a drive unit mounting plate 202, and the drive unit 110 may be detachably connected to the drive unit mounting plate 202 by drive unit fasteners 114 (e.g., bolts), but this is not a limitation.

[0046] like Figure 1 The vehicle 1 shown is a car, which includes seats 10.

[0047] like Figures 2 to 6The armrest assembly 100 for a seat 10 shown includes: a drive unit 110 configured as an assembly unit and mounted inside a bracket 200 of the seat 10 for providing drive force; an adjustment unit 120 configured as an assembly unit and including a fixed plate 121 and a movable plate 122, the fixed plate 121 being fixedly connected to the bracket 200 and the movable plate 122 being rotatably connected to the fixed plate 121; and a support unit 130. It is configured as an assembly unit and has a support surface 131 for supporting the arm; a first shaft 140 extends into the drive unit 110 and the adjustment unit 120, such that the drive unit 110 is connected to the movable disk 122, thereby driving the movable disk 122 to rotate relative to the fixed disk 121; a second shaft 150 is fixedly connected to the movable disk 122 and extends into the support unit 130, such that the support unit 130 is driven to rotate by the movable disk 122.

[0048] In summary, the beneficial technical effects of this application include, but are not limited to, at least one of the following:

[0049] The above seats adopt a modular design, dividing the armrest assembly into three relatively independent assembly units (modular components): a drive unit, an adjustment unit, and a support unit. This allows the three relatively independent assembly units to be manufactured and pre-assembled separately, and then integrated onto the seat frame via two drive shafts, thereby simplifying assembly operations and production processes. Each assembly unit and drive shaft can be replaced individually, avoiding the need to disassemble other structures, thus improving maintainability. Furthermore, the modular design is suitable for improving the overall versatility of the armrest assembly and individual units through the standardization of the connection structure between units. The design of the first and second shafts ensures stable and reliable transmission between the three units, and all three units can be replaced individually. The second shaft, which penetrates into the support unit, also ensures that the rotational power is evenly distributed inside the support unit and provides effective support for the load on the arms, resulting in a structure with high strength and rigidity, improving reliability and user experience.

[0050] While this application discloses preferred embodiments as described above, it is not intended to limit the scope of this application. Any changes and modifications can be made by those skilled in the art without departing from the spirit and scope of this application. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application, without departing from the content of the technical solution of this application, fall within the protection scope defined by the claims of this application.

Claims

1. A seat (10), characterized in that, Includes a handrail assembly (100) and a support (200); wherein, The armrest assembly (100) includes: A drive unit (110), which is configured as an assembly unit and installed on the inside of the bracket (200), is used to provide driving force; An adjustment unit (120) is configured as an assembly unit and includes a fixed plate (121) and a movable plate (122), wherein the fixed plate (121) is fixedly connected to the bracket (200) and the movable plate (122) is rotatably connected to the fixed plate (121); The support part (130) is configured as an assembly unit and is provided with a support surface (131) for supporting the arm; A first shaft (140) extends into the drive unit (110) and the adjustment unit (120), such that the drive unit (110) is connected to the movable disk (122) in a transmission manner, thereby enabling the drive unit (110) to drive the movable disk (122) to rotate relative to the fixed disk (121). The second shaft (150) is fixedly connected to the movable disk (122) and extends into the support portion (130), so that the support portion (130) can be rotated by the movable disk (122).

2. The seat (10) according to claim 1, characterized in that, The first end (141) of the first shaft (140) passes through the drive part (110) and is fitted with a retaining ring (143) that can abut against the drive part (110). The second end (142) of the first shaft (140) passes through the adjustment part (120) and extends out a first protrusion (144) that can abut against the adjustment part (120). The first end (151) of the second shaft (150) is fixedly connected to the movable disk (122) and provides a receiving space (153). The second end (142) of the first shaft (140) extends into the receiving space (153).

3. The seat (10) according to claim 2, characterized in that, The first protrusion (144) and the second end (142) of the first shaft (140) are configured as an integrally plastically formed structure.

4. The seat (10) according to claim 1, characterized in that, The drive unit (110) is provided with a first hole (111), and the adjustment unit (120) is provided with a second hole (123). The first hole (111) and the second hole (123) have the same profile. The first shaft (140) is provided with a first transmission section (145) extending into the first hole (111) and the second hole (123). The first transmission section (145) has a single cross-sectional shape and matches the profile.

5. The seat (10) according to claim 1, characterized in that, The first end (151) of the second shaft (150) is provided with a plurality of second protrusions (154) extending radially, and the movable disk (122) is correspondingly provided with a plurality of limiting portions (124) that contact the second protrusions (154).

6. The seat (10) according to claim 1, characterized in that, A third hole (134) is provided on the first side (132) of the support portion (130); the second shaft (150) extends into the support portion (130) from the third hole (134); the second end (152) of the second shaft (150) is provided with a second transmission section (155) and a mounting hole (156) is provided on the end face; the third hole (134) matches the second transmission section (155) so that the driving force is transmitted from the second shaft (150) to the support portion (130); a fastener passes through the support portion (130) from the second side (133) opposite to the first side (132) and is fixedly connected to the mounting hole (156).

7. The seat (10) according to claim 1, characterized in that, The first end (151) and the second end (152) of the second shaft (150) are separately formed; wherein, the first end (151) of the second shaft (150) provides a receiving space (153) and is provided with a second protrusion (154); the second end (152) of the second shaft (150) is provided with a second transmission section (155) and a mounting hole (156).

8. The seat (10) according to claim 1, characterized in that, The drive unit (110) includes a motor (112) and a transmission member (113) connected to the motor (112), the transmission member (113) having a first hole (111) matching the first shaft member (140) to transmit driving force; and / or, the adjustment unit (120) is disposed on the outside of the bracket (200), and the bracket (200) has a groove (201) to provide a mounting position for the adjustment unit (120), the drive unit (110) and the adjustment unit (120) at least partially overlap in the thickness direction; and / or, the second shaft member (150) extends from the first side (132) into the support unit ( 130), a fastener passes through the support portion (130) from the second side (133) opposite to the first side (132) and is fixedly connected to the second shaft (150), and an appearance piece is provided on the second side (133) to cover the fastener; and / or, the first end (151) of the second shaft (150) is welded to the movable disc (122); and / or, the fixed disc (121) is welded to the bracket (200); and / or, the bracket (200) is provided with a drive unit mounting plate (202), and the drive unit (110) is detachably connected to the drive unit mounting plate by a drive unit fastener (114).

9. A means of transportation (1), characterized in that, Includes the seat (10) as claimed in any one of claims 1 to 8.

10. An armrest assembly (100) for a seat (10), characterized in that, include: A drive unit (110), which is configured as an assembly unit and installed on the inside of the bracket (200) of the seat (10), is used to provide driving force; An adjustment unit (120) is configured as an assembly unit and includes a fixed plate (121) and a movable plate (122), wherein the fixed plate (121) is fixedly connected to the bracket (200) and the movable plate (122) is rotatably connected to the fixed plate (121); The support part (130) is configured as an assembly unit and is provided with a support surface (131) for supporting the arm; A first shaft (140) extends into the drive unit (110) and the adjustment unit (120), such that the drive unit (110) is connected to the movable disk (122) to drive the movable disk (122) to rotate relative to the fixed disk (121). The second shaft (150) is fixedly connected to the movable disk (122) and extends into the support portion (130) so that the support portion (130) is rotated by the movable disk (122).

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