Armrest assembly

Abstract

The utility model relates to an armrest assembly which comprises an armrest framework, an armrest support and a module metal plate assembly, the armrest support is used for being fixed on a seat assembly, and the module metal plate assembly comprises an angle adjuster, a first metal plate, a second metal plate and a bridging metal plate. The first metal plate and the second metal plate are fixedly connected with the two sides of the handrail framework respectively, and the bridging metal plate is fixedly connected between the first metal plate and the second metal plate. A first connecting supporting leg and a second connecting supporting leg which are connected with the first metal plate and the second metal plate respectively are formed on the armrest support, the angle adjuster is located between the armrest support and the armrest framework, and a rotating disc and a fixed disc of the angle adjuster are fixedly connected with the armrest framework and the armrest support respectively. And under the action of the angle adjuster, the armrest framework can rotate relative to the armrest bracket. The function of the angle adjuster can be conveniently expanded, the structure is simple, and the angle adjuster can be assembled on various armrest frameworks and is flexible and convenient to assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of automobiles, and particularly relates to an armrest assembly. Background Art

[0002] Armrest assemblies are generally divided into two types: small armrests and large armrests.

[0003] The armrest skeleton of a small armrest usually adopts a U-shaped tube. For example, the published patent (application number: CN202322085662.0) discloses an armrest frame assembly for the rear seat of a bicycle, which uses a flat tube in the shape of a U as the armrest skeleton. Since there are no protrusions on the outer surface of the flat tube, there is no need to wrap a plastic cover plate outside the armrest skeleton, and it can be directly wrapped with foam. The entire armrest frame assembly has a simple structure, is easy to install, has a small volume, and is light in weight. However, only a simple cup holder function is configured on this armrest skeleton, and it cannot be configured with functions such as an angle adjuster and a stop, and the structural strength is not high, and it is only suitable for simple armrests.

[0004] The armrest skeleton of a large armrest usually adopts a stamping sheet metal skeleton or a plastic skeleton. For example, the published patent (application number: CN201911194696.5) discloses a central armrest skeleton assembly for the rear seat of a vehicle, whose armrest skeleton is made of stamping welded sheet metal. Another example is the published patent (application number: CN202321736118.1), which discloses an armrest of a new locking mechanism for the rear seat of an automobile, whose armrest skeleton is made of a plastic skeleton. However, whether it is a stamping sheet metal skeleton or a plastic skeleton, in order to realize more additional functions of the large armrest (such as an angle adjuster, a headrest, a stop, etc.), installation parts need to be provided on the armrest skeleton, which in turn causes several protruding parts to be formed on the outer surface of the armrest skeleton. In order to achieve shielding and flatness, such large armrests usually need to wrap upper and lower plastic cover plates on the upper and lower surfaces of the armrest skeleton and then wrap foam outside, which directly increases the volume, weight and cost of the large armrest. Especially for an armrest skeleton with protruding parts only formed locally, it causes unnecessary waste. Summary of the Utility Model

[0005] In order to solve the above problems, the utility model provides an armrest assembly. Through the setting of the modular sheet metal assembly, it is convenient to expand functions such as an angle adjuster, and the strength of the armrest skeleton can be enhanced. It can be conveniently assembled to various forms of armrest skeletons according to needs, and the assembly is flexible and convenient.

[0006] The present utility model is realized through the following solution: An armrest assembly includes an armrest skeleton and an armrest bracket for being fixed on a seat assembly, and further includes a module sheet metal assembly. The module sheet metal assembly includes an angle adjuster, a first sheet metal, a second sheet metal, and a bridging sheet metal. The first sheet metal and the second sheet metal are respectively fixedly connected to two sides of the armrest skeleton, and the bridging sheet metal is fixedly connected between the first sheet metal and the second sheet metal. First connecting feet and second connecting feet respectively connected to the first sheet metal and the second sheet metal are formed on the armrest bracket. The angle adjuster is located between the armrest bracket and the armrest skeleton, and a rotating disc and a fixed disc of the angle adjuster are respectively fixedly connected to the armrest skeleton and the armrest bracket. Under the action of the angle adjuster, the armrest skeleton can rotate relative to the armrest bracket.

[0007] A further improvement of the armrest assembly of the present utility model lies in that: the angle adjuster is located between the first connecting foot and the first sheet metal, and the rotating disc and the fixed disc of the angle adjuster are respectively fixedly connected to the first sheet metal and the first connecting foot.

[0008] A further improvement of the armrest assembly of the present utility model lies in that: a first stop mechanism for limiting the armrest skeleton is provided between the module sheet metal assembly and the armrest bracket. When the armrest skeleton rotates relative to the armrest bracket to a designed open position, the first stop mechanism limits the armrest skeleton by preventing the first sheet metal from rotating relative to the first connecting foot. The first stop mechanism is located between the first sheet metal and the first connecting foot.

[0009] A further improvement of the armrest assembly of the present utility model lies in that: the fixed disc is fixedly connected to the first connecting foot through a first shaft member. The first stop mechanism includes a first limit stopper fixedly connected to the first shaft member or the fixed disc and a second limit stopper fixedly connected to the first sheet metal or the rotating disc. When the armrest skeleton rotates relative to the armrest bracket to the designed open position, the second limit stopper contacts the first limit stopper and is blocked and limited by the first limit stopper.

[0010] A further improvement of the armrest assembly of the present utility model lies in that: an unlocking point position exposed to the inner side of the first sheet metal is provided on the rotating disc. The armrest assembly further includes an angle adjuster unlocking assembly arranged inside the armrest skeleton. The angle adjuster unlocking assembly includes an unlocking piece and an unlocking pull belt. One end of the unlocking piece is fixedly connected to the unlocking point position of the angle adjuster, the other end of the unlocking piece is hinged to one end of the unlocking pull belt, and the other end of the unlocking pull belt passes through the armrest skeleton and forms an operation end for pulling operation.

[0011] A further improvement of the armrest assembly of the utility model is that: the armrest frame is a U-shaped tube, the bridging sheet metal is a limiting shaft vertically fixed between the first sheet metal and the second sheet metal, and when the armrest frame is rotated to a designed open position relative to the armrest bracket, the limiting shaft contacts the armrest bracket and is blocked by the armrest bracket to limit the armrest frame.

[0012] A further improvement of the armrest assembly of the utility model is that the limiting axis extends beyond the second sheet metal to form a limiting section, and a limiting groove is provided on the second connecting leg. When the armrest frame is rotated to the designed open position relative to the armrest bracket, the limiting section is blocked and limited in the limiting groove.

[0013] A further improvement of the armrest assembly of the utility model is that the second connecting leg is hingedly connected to the second sheet metal via a second shaft member, the second sheet metal is provided with a fixing groove for fixing the limit axis and facilitating the limit axis to extend beyond the second sheet metal, and a first pivot hole for the second shaft member to pass through, and the fixing groove and the first pivot hole are staggered.

[0014] A further improvement of the armrest assembly of the utility model is that: the armrest frame is a U-shaped tube or sheet metal frame, the bridging sheet metal is a U-shaped sheet metal, both ends of the U-shaped sheet metal are formed with U-shaped edges, and the first sheet metal and the second sheet metal are formed with connecting edges for overlapping and fixing with the U-shaped edges.

[0015] A further improvement of the armrest assembly of the utility model is that a second stop mechanism is provided between the module sheet metal assembly and the armrest bracket, which is used to limit the armrest frame by preventing the second sheet metal from rotating relative to the armrest bracket when the armrest frame rotates to the designed open position relative to the armrest bracket, and the second stop mechanism is located between the second sheet metal and the second connecting leg.

[0016] A further improvement of the armrest assembly of the utility model is that: the second connecting leg is hingedly connected to the second sheet metal by a third shaft member, and a switching sleeve for the third shaft member to pass through is fixedly connected to the second sheet metal; the second stop mechanism includes a third limit stopper fixedly connected to the outer circumferential surface of the third shaft member and a fourth limit stopper fixedly connected to the inner circumferential surface of the switching sleeve, and when the armrest frame is rotated to the designed open position relative to the armrest bracket, the fourth limit stopper contacts the third limit stopper and is blocked and limited by the third limit stopper.

[0017] A further improvement of the armrest assembly of the present utility model lies in that: the module sheet metal assembly further includes a damper located on the relatively inner side of the second sheet metal; the damping limit shaft of the damper is fixedly connected to the second sheet metal, and the damping rotating shaft of the damper is fixedly connected to the third shaft member.

[0018] A further improvement of the armrest assembly of the present utility model lies in that: the armrest assembly further includes an upper cover and a lower cover that wrap the module sheet metal assembly, as well as upper foam, lower foam, and a face cover provided outside the upper cover and the lower cover.

[0019] The present utility model includes but is not limited to the following beneficial effects:

[0020] 1. Through the setting of the module sheet metal assembly, it is convenient to expand functional modules such as the angle adjuster and the damper, and the strength of the armrest skeleton can be strengthened. It can be conveniently assembled to various forms of armrest skeletons according to needs, and the assembly is flexible and convenient. Further, through the setting of the angle adjuster unlocking assembly, the function of directly unlocking the angle adjuster through the armrest assembly can be realized.

[0021] 2. By integrating functional modules such as the angle adjuster and the damper and installing them as a whole in the opening part of the armrest skeleton in the form of a module sheet metal assembly, while enriching the additional functions, the installation positions of the additional functions are concentrated. It is only necessary to wrap the plastic cover plate around the part of the module sheet metal assembly, without wrapping the entire surface of the armrest skeleton, further reducing the volume, weight, and cost of the armrest assembly.

[0022] 3. Through the cooperation of the first stop mechanism and the limit shaft plus limit groove combination mechanism, or the cooperation of the first stop mechanism and the second stop mechanism, the armrest skeleton can be limited from both sides, and the two stop mechanisms cooperate with each other to make the stop process of the armrest skeleton more stable, and the overall structure is simple. In addition, the first stop mechanism and the second stop mechanism are completely located inside the armrest bracket, without occupying too much external space of the armrest bracket, and are suitable for application occasions with strict requirements on the armrest size. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A comparison schematic diagram showing the open state and the closed state of the armrest assembly is shown.

[0024] Figure 2 A schematic diagram of the overall structure of the first embodiment of the armrest assembly of the present utility model is shown

[0025] Figure 3 An exploded view of the first embodiment of the armrest assembly of the present utility model is shown.

[0026] Figure 4 A schematic diagram showing the disassembled state of the armrest bracket, the armrest skeleton, and the module sheet metal assembly in the first embodiment is shown.

[0027] Figure 5 Shows a schematic diagram of the assembled state of the armrest bracket, armrest skeleton, and module sheet metal assembly in the first embodiment.

[0028] Figure 6 Shows a schematic diagram of the disassembled state of the angle adjuster and the first sheet metal in the first embodiment.

[0029] Figure 7 Shows a schematic diagram of the assembled state of the angle adjuster and the first sheet metal in the first embodiment.

[0030] Figure 8 Shows a schematic diagram of the position state of the angle adjuster unlocking assembly when the armrest skeleton is in the closed state in the first embodiment.

[0031] Figure 9 Shows a schematic diagram of the position state of the angle adjuster unlocking assembly when the armrest skeleton is in the unlocked state in the first embodiment.

[0032] Figure 10 Shows a schematic diagram of the position state of the angle adjuster unlocking assembly when the armrest skeleton is in the open state in the first embodiment.

[0033] Figure 11 Shows a schematic diagram of the position state of the angle adjuster unlocking assembly and the two-side stop mechanisms when the armrest skeleton is in the closed state.

[0034] Figure 12 Shows a schematic diagram of the position state of the angle adjuster unlocking assembly and the two-side stop mechanisms when the armrest skeleton is in the unlocked state.

[0035] Figure 13 Shows a schematic diagram of the position state of the angle adjuster unlocking assembly and the two-side stop mechanisms when the armrest skeleton is in the open state.

[0036] Figure 14 Shows the assembly relationship schematic of the first embodiment of the armrest assembly of the present utility model Figure 1 。

[0037] Figure 15 Shows the assembly relationship schematic of the first embodiment of the armrest assembly of the present utility model Figure 2 。

[0038] Figure 16 Shows the assembly relationship schematic of the first embodiment of the armrest assembly of the present utility model Figure 3 。

[0039] Figure 17 Shows an exploded view of the second embodiment of the armrest assembly of the present utility model.

[0040] Figure 18The overall structural schematic diagram of the second embodiment of the armrest assembly of the utility model is shown.

[0041] Figure 19 A schematic diagram of the exploded state of the armrest bracket, armrest frame and module sheet metal assembly in the second embodiment is shown.

[0042] Figure 20 A schematic diagram of the assembly state of the armrest bracket, the armrest frame and the module sheet metal assembly in the second embodiment is shown.

[0043] Figure 21 A modular exploded view of a module sheet metal assembly in a second embodiment is shown.

[0044] Figure 22 The overall structural schematic diagram of the module sheet metal assembly in the second embodiment is shown.

[0045] Figure 23 A schematic diagram of the exploded state of the angle adjuster and the first sheet metal in the second embodiment is shown.

[0046] Figure 24 A schematic diagram of the assembly state of the angle adjuster and the first sheet metal in the second embodiment is shown.

[0047] Figure 25 A schematic diagram of the exploded state of the damper and the second sheet metal in the second embodiment is shown.

[0048] Figure 26 A schematic diagram of the assembly state of the damper and the second sheet metal in the second embodiment is shown.

[0049] Figure 27 Shows Figure 27 AA cross-section diagram of .

[0050] Figure 28 A schematic diagram of the assembly state of the armrest bracket, the armrest frame and the module sheet metal assembly after the U-shaped sheet metal is removed in the second embodiment is shown.

[0051] Figure 29 A schematic diagram of the damper assembly in the second embodiment with the cross-joint sheet metal cut away is shown.

[0052] Figure 30 A schematic diagram showing the position state of the recliner unlocking assembly when the armrest frame is in the closed state in the second embodiment.

[0053] Figure 31 A schematic diagram showing the position state of the recliner unlocking assembly when the armrest frame is in the unlocking state in the second embodiment is shown.

[0054] Figure 32 A schematic diagram showing the position state of the recliner unlocking assembly when the armrest frame is in the open state in the second embodiment is shown.

[0055] Figure 33 Shows the schematic diagram of the position state of the angle adjuster unlocking component and the two-side stop mechanisms when the armrest skeleton is in the closed state in the second embodiment.

[0056] Figure 34 Shows the schematic diagram of the position state of the angle adjuster unlocking component and the two-side stop mechanisms when the armrest skeleton is in the unlocked state in the second embodiment.

[0057] Figure 35 Shows the schematic diagram of the position state of the angle adjuster unlocking component and the two-side stop mechanisms when the armrest skeleton is in the open state in the second embodiment.

[0058] Figure 36 Shows the schematic diagram of the assembly relationship of the second embodiment of the armrest assembly of the present utility model.

[0059] Figure 37 Shows the exploded view of the third embodiment of the armrest assembly of the present utility model.

[0060] Figure 38 Shows the schematic diagram of the overall structure of the third embodiment of the armrest assembly of the present utility model.

[0061] Figure 39 Shows the schematic diagram of the assembly relationship of the third embodiment of the armrest assembly of the present utility model.

[0062] Figure 40 Shows the exploded state schematic of the armrest bracket, armrest skeleton and module sheet metal assembly in the third embodiment Figure 1 。

[0063] Figure 41 Shows the assembled state schematic of the armrest bracket, armrest skeleton and module sheet metal assembly in the third embodiment Figure 1 。

[0064] Figure 42 Shows the exploded state schematic of the armrest bracket, armrest skeleton and module sheet metal assembly in the third embodiment Figure 2 。

[0065] Figure 43 Shows the assembled state schematic of the armrest bracket, armrest skeleton and module sheet metal assembly in the third embodiment Figure 2 。

[0066] Figure 44 Shows the assembled state schematic of the armrest bracket, armrest skeleton and module sheet metal assembly after removing the U-shaped sheet metal in the third embodiment Figure 1 。

[0067] Figure 45Shows the schematic assembly state of the armrest bracket, armrest skeleton, and module sheet metal assembly after removing the U-shaped sheet metal in the third embodiment Figure 2 .

[0068] In the figure: 1. Armrest skeleton; 11. Main pipe; 11a. Main sheet metal; 12. Abdominal pipe; 13. Second fixing groove; 14. Second pivot hole; 15. Cup holder frame support; 16. Headrest rod; 17. Headrest rod support; 18. Front support; 19. Intermediate support; 2. Armrest bracket; 21. First connecting leg; 211. Second shaft hole; 22. Second connecting leg; 221. Limit groove; 222. Third shaft hole; 23. Second shaft member; 3. Module sheet metal assembly; 31. First sheet metal; 311. First mounting hole; 312. First clamping groove; 313. Second clamping groove; 314. Cover fixing sheet metal; 315. First receiving edge; 32. Second sheet metal; 321. First fixing groove; 322. First pivot hole; 323. Second receiving edge; 325. Second mounting hole; 326. Adapter sleeve; 326a. Left tube section; 326b. Right tube section; 327 Fourth limiting stop; 328. Bushing; 33. Cross-connecting sheet metal; 331. Limiting section; 332. U-shaped edge; 34. Angle adjuster; 341. Rotating disk; 342. Fixed disk; 343. Unlock point; 35. First shaft member; 36. Limiting sheet metal; 361. First limiting stop; 362. First shaft hole; 37. Second limiting stop; 38. Damper; 381. Damper rotating shaft; 382. Damper limiting shaft; 383. Damper limiting shaft bracket; 384. Felt; 385. Snap ring; 386. Block; 39. Third shaft member; 39a. Left shaft section; 39b Middle shaft section; 39c Right shaft section; 391. Third limiting stop; 392. Clamping hole; 41. Unlock piece; 42. Unlock pull belt; 421. Operating end; 422. Fixed sleeve; 43. First zip fastener fixing member; 431. Bayonet; 44. Second zip fastener fixing member; 441. Fixed sheet metal; 442. Zip fastener cover; 443. Pull belt roller; 444. Pull belt roller shaft; 51. Upper cover; 52. Lower cover; 53. Upper foam; 54. Lower foam; 55. Face cover; 56. Cup holder frame; 57. Panel; 58. Panel trim; 61. Storage box assembly; 62. Armrest covering assembly; 63. Right side trim; 64. Left side trim; 65. Wiring harness assembly; 66. Cover plate assembly; 67. Headrest covering assembly; 671. Headrest support rod; 672. Headrest support sheet metal; 673. Pull belt unlocking mechanism; 68. Panel assembly; 681. Panel support sheet metal; 69. Cup holder assembly; 691. Support rib. Detailed implementation mode

[0069] In order to solve the problems that traditional armrests either have a single function and low strength, or are complex in structure, large in size and heavy in weight. The utility model provides an armrest assembly. Through the setting of the modular sheet metal assembly, the armrest assembly not only has the function of an angle adjuster, but also can strengthen the strength of the armrest skeleton through the sheet metal module, and can be conveniently assembled onto various forms of armrest skeletons as required, with flexible and convenient assembly. The following further illustrates the armrest assembly with specific embodiments in conjunction with the drawings.

[0070] Refer to Figures 1 to 45 As shown, an armrest assembly includes an armrest skeleton 1 with an opening formed at one end, an armrest bracket 2 for fixing on a seat assembly, and a modular sheet metal assembly 3. The modular sheet metal assembly 3 includes an angle adjuster 34, a first sheet metal 31, a second sheet metal 32 and a cross-connecting sheet metal 33. The first sheet metal 31 and the second sheet metal 32 are respectively fixedly connected to both sides of the opening part of the armrest skeleton 1, and the cross-connecting sheet metal 33 is fixedly connected between the first sheet metal 31 and the second sheet metal 32. The armrest bracket 2 is formed with a first connecting leg 21 and a second connecting leg 22 located on the relatively outer sides of the first sheet metal 31 and the second sheet metal 32. The angle adjuster 34 is located between the first connecting leg 21 and the first sheet metal 31, and the rotating disk 341 and the fixed disk 342 of the angle adjuster 34 are respectively fixedly connected to the first sheet metal 31 and the first connecting leg 21, and the second connecting leg 22 is hingedly connected to the second sheet metal 32. The angle adjuster 34 can also be located between the second connecting leg 22 and the second sheet metal 32. Correspondingly, the rotating disk 341 and the fixed disk 342 are respectively fixedly connected to the second sheet metal 32 and the second connecting leg 22, and the first connecting leg 21 is hingedly connected to the first sheet metal 31. Or, the number of the angle adjusters 34 is two, and the two angle adjusters 34 are respectively located between the first connecting leg 21 and the first sheet metal 31, and between the second connecting leg 22 and the second sheet metal 32. The fixing methods of the rotating disk 341 and the fixed disk 342 are the same as above, and will not be elaborated here. Under the action of the angle adjuster 34, the armrest skeleton 1 can rotate relative to the armrest bracket 2.

[0071] Through the setting of the modular sheet metal assembly 3 in the utility model, it is convenient to expand functional modules such as the angle adjuster 34, and can strengthen the strength of the armrest skeleton 1, and can be conveniently assembled onto various forms of armrest skeletons 1 as required, with flexible and convenient assembly. The following is illustrated through the following several embodiments:

[0072] The first embodiment: Refer to Figures 1 to 16As shown, the module sheet metal assembly 3 integrates the functions of the angle adjuster and the stop function. In this embodiment, the armrest frame 1 is made of a U-shaped tube (such as a U-shaped round tube or a U-shaped flat tube), which has a simple structure, light weight, and low cost, belonging to a simple configuration armrest. Specifically, the armrest frame 1 includes two parallel main pipes 11 and a belly pipe 12 fixed to one end of the two main pipes. The ends of the two main pipes 11 away from the belly pipe 12 form the opening, and the module sheet metal assembly 3 is arranged at the opening. Specifically, one end of the first sheet metal 31 is fixed to the end of one main pipe 11, and a first mounting hole 311 (see Figure 6 ) for fixedly connecting the rotating disk 341 of the angle adjuster 34 is provided at the other end of the first sheet metal 31. The bridging sheet metal 33 is a limiting shaft vertically fixed to the relatively inner side of the first sheet metal 31 and deviating from the rotation center of the angle adjuster 34. The second sheet metal 32 is a U-shaped sleeve, which is sleeved and fixed to the end of the other main pipe 11. A first fixing groove 321 for fixing the limiting shaft is provided on the second sheet metal 32. A first pivot hole 322 is provided at a position on the second sheet metal 32 corresponding to the rotation center of the angle adjuster 34. Correspondingly, a second fixing groove 13 for fixing the limiting shaft is also provided at a position on the end of the other main pipe 11 corresponding to the first fixing groove 321, and a second pivot hole 14 is also provided at a position corresponding to the first pivot hole 322. The second connecting leg 22 is hinged to the second sheet metal 32 and the other main pipe 11 through a second shaft member 23. Specifically, when the second sheet metal 32 is sleeved and fixed to the end of the other main pipe 11, the first pivot hole 322 and the second pivot hole 14 are aligned with each other, and the second shaft member 23 passes through and is fixed to the first pivot hole 322 and the second pivot hole 14 together, so that the armrest frame 1 can rotate relative to the armrest bracket 2.

[0073] Preferably: A first stop mechanism is provided on the module sheet metal assembly 3 for limiting the armrest frame 1 by preventing the first sheet metal 31 from rotating relative to the fixed disk 342 when the armrest frame 1 rotates relative to the armrest bracket 2 to the designed open position (as shown in Figure 1 , when the armrest assembly is in the designed open position, it corresponds to the S1 state, and when the armrest assembly is in the closed position, it corresponds to the S2 state). The first stop mechanism is located between the first sheet metal 31 and the first connecting leg 21. Specifically, as shown in Figures 4 to 6As shown, the fixed disk 342 is fixedly connected to the first connecting leg 21 through the first shaft member 35; the first stopping mechanism includes a first limiting stopper 36 fixedly connected to the first shaft member 35 and a second limiting stopper 37 fixedly connected to the first sheet metal 31. In this embodiment, the first limiting stopper 36 is a lotus root slice type limiting piece, which is butt-jointed and fixed on the fixed disk 342 of the angle adjuster 34, and a limiting portion 361 extending outward is formed at its edge, and a first shaft hole 362 is opened at a position corresponding to the rotation center of the angle adjuster 34. One end of the first shaft member 35 is inserted and fixedly connected to the first shaft hole 362. A second shaft hole 211 is opened on the first connecting leg 21, and the other end of the first shaft member 35 is inserted and fixedly connected to the second shaft hole 211. In order to ensure the reliable fixation of the first shaft member 35, preferably, both ends of the first shaft member 35 are formed into special shapes, and the first shaft hole 362 and the second shaft hole 211 are both special-shaped holes adapted to the corresponding ends of the first shaft member 35. A first clamping groove 312 is opened on the first sheet metal 31. One end of the second limiting stopper 37 is inserted and fixed in the first clamping groove 312, and the other end is arranged around the angle adjuster 34 in a direction parallel to the first shaft member 35 (see Figure 7 ). It can be imagined that the first limiting stopper can also be fixedly connected to the fixed disk of the angle adjuster, and / or the second limiting stopper can also be fixedly connected to the rotating disk.

[0074] Preferably, in cooperation with Figure 1 and Figures 11 to 13 as shown, the limiting shaft passes through the first fixing groove 321 and forms a limiting section 331. A limiting groove 221 is opened on the second connecting leg 22. When the armrest frame 1 rotates relative to the armrest bracket 2 to the designed open position (i.e., the S1 state of Figure 1 ), the limiting section 331 is blocked and limited in the limiting groove 221. Through the cooperation of the first stopping mechanism and the combination mechanism of the limiting shaft and the limiting groove 221, the armrest frame 1 can be limited from both sides, and the two-sided stopping mechanisms cooperate with each other, making the stopping process of the armrest frame 1 smoother and the overall structure simpler. In addition, the first stopping mechanism is completely located inside the armrest bracket 2, and the limiting shaft only needs to extend out of the second connecting leg 22, without occupying too much external space of the armrest bracket 2, which is suitable for application occasions with strict requirements on the armrest size.

[0075] More preferably, in cooperation with Figures 6 to 10As shown, an unlocking point 343 is provided at the center of the rotating disc 341. The unlocking point 343 exposes the inner side of the first sheet metal 31 through the first mounting hole 311. The armrest assembly further includes an angle adjuster unlocking component disposed inside the armrest skeleton 1. The angle adjuster unlocking component includes an unlocking piece 41 and an unlocking pull strap 42. One end of the unlocking piece 41 is fixed to the unlocking point 343 of the angle adjuster 34, and the other end of the unlocking piece 41 is hinged to one end of the unlocking pull strap 42. The other end of the unlocking pull strap 42 passes through the armrest skeleton 1 and forms an operating end 421 for pulling operation. In order to limit the pulling path of the unlocking pull strap 42, a first cable fixing member 43 is provided on the first sheet metal 31, and a second cable fixing member 44 is provided on the armrest skeleton 1. Specifically, as Figures 6 to 8 shown, a second clamping groove 313 is formed on the first sheet metal 31. One end of the first cable fixing member 43 is inserted and fixed in the second clamping groove 313, and the other end forms a clamping opening 431. A fixing sleeve 422 is sleeved at a position corresponding to the clamping opening 431 on the unlocking pull strap 42. The unlocking pull strap 42 is clamped at the clamping opening 431 through the fixing sleeve 422 to achieve the first fixing point on the pulling path. Cooperating Figure 2 with Figure 14 shown, the second cable fixing member 44 includes a fixing sheet metal 441 fixed to the inner side of a main pipe 11 of the armrest skeleton 1. The unlocking pull strap 42 is clamped on the fixing sheet metal 441 near the operating end 421 to achieve the second fixing point on the pulling path. A cable cover 442 is provided at the second fixing point, and the cable cover 442 is buckled and fixed to the fixing sheet metal 441. In order to prevent the unlocking pull strap 42 from jamming during pulling, a pull strap roller 443 and a pull strap roller shaft 444 for facilitating the movement of the unlocking pull strap 42 are further provided on the fixing sheet metal 441. The pull strap roller 443 and the pull strap roller group 444 are covered by the cable cover 442 together with the unlocking pull strap 42.

[0076] Regarding the movement of the angle adjuster unlocking component: Refer to Figure 1 and Figures 8 to 10 shown. When the armrest skeleton 1 is in the closed state (i.e., Figure 1 the S2 state), the angle adjuster 34 is in the locked state. At this time, the positions of the unlocking piece 41 and the unlocking pull strap 42 are as Figure 8 shown. When the armrest needs to be opened, the angle adjuster 34 can be unlocked outside the armrest assembly. Specifically, as Figure 9As shown, when the operating end 421 of the unlocking pull belt 42 is pulled along the A1 direction, the unlocking pull belt 42 will move along the A2 direction, thereby driving the unlocking piece 41 to start swinging clockwise. Since the unlocking point 343 of the unlocking piece 41 and the angle adjuster 34 are fixedly connected to each other, when the unlocking piece 41 starts to swing clockwise, the unlocking point 343 will rotate clockwise. When the unlocking point 343 rotates clockwise by a certain angle (the angle that meets the unlocking requirement, that is, the state shown in Figure 9 ), the unlocking of the angle adjuster 34 is achieved. Further, as shown in Figure 10 , after the angle adjuster 34 is unlocked, under the rotation of the rotating disk 341 of the angle adjuster 34 relative to the fixed disk 342, the first sheet metal 31 will drive the armrest frame 1 to move in the opening direction. At this time, the entire angle adjuster unlocking assembly moves with the movement of the armrest frame 1 until Figure 10 the fully opened state shown (that is, the S1 state of Figure 1 ).

[0077] Regarding the stop movement of both sides of the armrest frame 1: Refer to Figure 1 and Figures 11 to 13 shown. When the armrest frame 1 is in the closed state (that is, the S2 state of Figure 1 ), the positions of the unlocking piece 41, the unlocking pull belt 42, the first limiting member 36, the second limiting member 37, the limiting section 331 of the limiting shaft, and the limiting groove 221 are as shown in Figure 11 . There is a certain distance between the limiting portion 361 of the first limiting member 36 and the second limiting member 37, and there is also a certain distance between the limiting section 331 of the limiting shaft and the limiting groove 221. When the armrest needs to be opened, the unlocking pull belt 42 is pulled according to the above angle adjuster unlocking method, so that the unlocking point 343 rotates clockwise by a certain angle, as shown in Figure 12 . During this rotation process, the positions of the first limiting member 36, the second limiting member 37, the limiting shaft, and the limiting groove 221 do not change. Until the angle adjuster 34 is unlocked, as shown in Figure 13 , at this time, under the rotation of the rotating disk 341 of the angle adjuster 34 relative to the fixed disk 342, the first sheet metal 31 drives the armrest frame 1 to move in the opening direction. Since the second limiting member 37 is fixedly connected to the first sheet metal 31, and the first limiting member 36 is fixedly connected to the armrest bracket 2, and the armrest bracket 2 is fixed on the seat assembly and remains stationary. Therefore, when the armrest frame 1 rotates in the opening direction, it will drive the first sheet metal 31 and the second limiting member 37 to rotate. When the armrest frame 1 moves to the fully opened state (that is, Figure 1When in the S1 state), the second limit stop 37 moves clockwise to contact the limit portion 361 of the first limit stop 36, and the limit portion 361 blocks the second limit stop 37 to prevent the armrest frame 1 from moving further, thereby achieving the stop on one side. Additionally, since the limit shaft is fixedly connected to the armrest frame 1 and the limit groove 221 is formed on the armrest bracket 2, when the armrest frame 1 rotates in the opening direction, it will drive the limit shaft to move while the limit groove 221 remains stationary. When the armrest frame 1 moves to the fully open state, the limit section 331 of the limit shaft moves clockwise into the limit groove 221, and the limit groove 221 blocks the limit section 331 to prevent the armrest frame 1 from moving further, thereby achieving the stop on the other side.

[0078] In this embodiment, by integrating the angle adjuster 34 on the module sheet metal assembly 3 and installing it as a whole at the opening part of the armrest frame 1, the armrest frame 1 with a U-shaped tube can have both the angle adjustment function and the stop function. While enriching the additional functions, it centralizes the installation position of the additional functions, and only the position of the module sheet metal assembly needs to be wrapped with a plastic cover plate, without wrapping the entire armrest frame. Specifically, as Figure 2 and Figure 3 shown, in addition to the basic frame composed of the above-mentioned armrest frame 1, armrest bracket 2, and module sheet metal assembly 3, the armrest assembly of this embodiment further includes an upper cover 51 and a lower cover 52, an upper foam 53 and a lower foam 54, and a face cover 55 that are sequentially arranged outward from the basic frame. Regarding the upper cover 51 and the lower cover 52, they are usually used to cover the protruding parts in the basic frame. On the one hand, this embodiment uses a U-shaped tube without protrusions on the surface as the armrest frame 1. On the other hand, the angle adjuster 34 is integrated on the module sheet metal assembly 3 and centrally installed on one side of the opening part of the armrest frame 1. Therefore, the upper cover 51 and the lower cover 52 used in this embodiment only need to wrap the position of the module sheet metal assembly 3, without wrapping the entire armrest frame 1, reducing the volume, weight, and cost of the armrest assembly.

[0079] Preferably, some common functions can also be added to the armrest assembly, such as a headrest and a cup holder structure. For an armrest assembly equipped with a headrest and a cup holder structure, a support frame should be correspondingly provided on the armrest frame 1. As Figure 4 and Figure 5As shown, a headrest rod 16 is fixed to the closed end (i.e., the end of the abdominal tube 12) of the armrest skeleton 1, and a headrest rod support 17 is fixed near the closed end. Both ends of the headrest rod support 17 are respectively fixed to the two main tubes 11. The front end of the headrest rod 16 extends forward and downward for setting a headrest. The rear end of the headrest rod 16 is fixed to the bottom surfaces of the abdominal tube 12 and the headrest rod support 17 to increase the fixing surface and improve the fixing strength. In addition, two cup holder frame supports 15 are fixed between the two main tubes 11 to support the cup holder frame 56 of the cup holder structure.

[0080] The following briefly describes Figures 14 to 16 the assembly process of this embodiment:

[0081] First, after installing the basic frame (including the armrest skeleton 1, the armrest bracket 2, and the module sheet metal assembly 3), install the cover and the angle adjuster unlocking assembly. When installing the cover, use the upper cover 51 and the lower cover 52 to block the gap between the first sheet metal 31 and the first connecting foot 21. A cover fixing sheet metal 314 is pre-fixed on the first sheet metal 31, and the upper cover 51 and the lower cover 52 are butt-jointed and fixed to the cover fixing sheet metal 314 with screws. When installing the angle adjuster unlocking assembly, first fix the fixing sheet metal 441 on the armrest skeleton 1, fix the first cable fixing part 43 on the first sheet metal 31, fix the unlocking piece 41 at the unlocking point 343, then install the unlocking cable 42, snap the unlocking cable 42 onto the first cable fixing part 43 and the fixing sheet metal 441, hinge one end of the unlocking cable 42 to the unlocking piece 41, and the other end extends out of the armrest skeleton 1 to form an operating end 421. Finally, fix the cable cover 442 to the fixing sheet metal 441 with screws.

[0082] Then, install the foam and the cover 55. Paste the upper foam 53 and the lower foam 54 on the upper and lower surfaces of the basic frame installed with the cover and the angle adjuster unlocking assembly respectively, and then put the cover 55 on the outer surface of the foam as a whole. For the armrest assembly with a cup holder structure, after pasting the foam, install the cup holder frame 56 at the corresponding position, and then put on the cover 55.

[0083] Finally, install the panel 57 and the panel trim 58.

[0084] Second Embodiment: Refer to Figures 17 to 36As shown, the module sheet metal assembly 3 integrates the functions of the angle adjuster, damper, and stop. In this embodiment, the armrest frame 1 is made of a U-shaped tube, which has a simple structure, is convenient for platformization, and has a wide applicability, belonging to a medium-configured armrest. Specifically, compared with the first embodiment, the difference in this embodiment is that the module sheet metal assembly 3 further includes a damper 38 located on the relatively inner side of the second sheet metal 32. In order to install the damper 38 and ensure the structural strength of the armrest frame 1, the second sheet metal 32 and the cross-connecting sheet metal 33 in this embodiment are different from those in the first embodiment. Specifically, in this embodiment, the cross-connecting sheet metal 33 is a U-shaped sheet metal, the second sheet metal 32 has a structure similar to that of the first sheet metal 31, the second connecting leg 22 is hingedly connected to the second sheet metal 32, and both ends of the cross-connecting sheet metal 33 are formed with enlarged U-shaped edges 332. The first sheet metal 31 and the second sheet metal 32 are both formed with a first receiving edge 315 and a second receiving edge 323 for the U-shaped edge 332 to overlap and be fixed. By setting the cross-connecting sheet metal 33 as U-shaped, the opening part of the armrest frame 1 can be strengthened on three surfaces, ensuring the structural strength of the armrest frame 1 and meeting the requirements of a large armrest. In addition, through the cooperation of the enlarged U-shaped edge 332 and the two receiving edges, the contact area and connection strength between them are ensured.

[0085] Regarding the installation of the damper 38, as Figures 25 to 29 shown: The damper 38 includes a damping rotating shaft 381, a damping limiting shaft 382, and a damping limiting shaft bracket 383. The damping limiting shaft 382 is fixedly connected to the second sheet metal 32 through the damping limiting shaft bracket 383, and the damping rotating shaft 381 passes through the second sheet metal 32 through a third shaft member 39 and is fixedly connected to the second connecting leg 22. Specifically, a second mounting hole 325 is opened at a position on the second sheet metal 32 opposite to the rotation center of the angle adjuster 34. A transfer sleeve 326 for the third shaft member 39 to pass through is fixedly connected in the second mounting hole 325. The damping rotating shaft 381 is coaxially connected to the third shaft member 39. The damping limiting shaft bracket 383 is fixedly connected to the second sheet metal 32. The damping limiting shaft 382 contacts the stopper 386 of the damper 38, and a felt 384 is provided between them. One end of the damping limiting shaft 382 is fixed to the damping limiting shaft bracket 383, and the other end extends out of the stopper 386 and is clamped with a snap ring 385 to limit the axial position of the damper 38. When rotating through the snap ring 385, the damping rotating shaft 381 remains stationary, while the damping limiting shaft 382 rotates with the rotation of the armrest frame 1. Under the action of the damper 38, damping is provided for the rotational movement of the armrest frame 1. The detailed structure and working principle of the damper 38 belong to the prior art and will not be elaborated here.

[0086] Preferably, the module sheet metal assembly 3 is provided with a device for when the armrest frame 1 rotates relative to the armrest bracket 2 to the designed open position (i.e.,Figure 1 When in the S1 state), by preventing the second sheet metal 32 from rotating relative to the damping rotating shaft 381, the second stop mechanism of the armrest frame 1 is limited. The second stop mechanism is located between the second sheet metal 32 and the damper 38. Specifically, the second stop mechanism includes a third limit stop 391 fixedly connected to the outer circumferential surface of the third shaft member 39 and a fourth limit stop 327 fixedly connected to the inner circumferential surface of the adapter sleeve 326. When the armrest frame 1 rotates relative to the armrest bracket 2 to the designed open position, the fourth limit stop 327 contacts the third limit stop 391 and is blocked and limited by the third limit stop 391. One end of the third shaft member 39 is provided with a clamping hole 392 for clamping the damping rotating shaft 381, and the other end of the third shaft member 39 passes through the adapter sleeve 326 and is fixedly connected to the second connecting leg 22. In this embodiment, as Figure 25 shown, the third shaft member 39 is divided into a left shaft section 39a, a middle shaft section 39b and a right shaft section 39c. Among them, the clamping hole 392 is formed in the right shaft section 39c. The number of the third limit stops 391 is two, and they are symmetrically arranged on the outer circumferential surface of the right shaft section 39c. The left shaft section 39a is shaped abnormally. The adapter sleeve 326 is divided into a left sleeve section 326a and a right sleeve section 326b. A bushing 328 is sleeved inside the left sleeve section 326a for the middle shaft section 39b to rotatably pass through. The number of the fourth limit stops 327 is two, and they are symmetrically arranged on the inner circumferential surface of the right sleeve section 326b. The two fourth limit stops 327 divide the inner wall of the right sleeve section 326b into two circumferential sections (i.e., Figures 33 to 35 the areas indicated by the arc arrows in the figure). The inner diameter of the right sleeve section 326b is adapted to the outer diameter of the right shaft section 39c. When the right shaft section 39c is inserted into the right sleeve section 326b, the two third limit stops 391 are respectively located in the two circumferential sections. The left shaft section 39a passes through the adapter sleeve 326 and is shaped abnormally. The second connecting leg 22 is correspondingly provided with an abnormally shaped third shaft hole 222 for the left shaft section to be inserted and fixed.

[0087] In this embodiment, the structures of the angle adjuster 34, the first sheet metal 31, the first stop mechanism and the angle adjuster unlocking assembly are the same as those in the first embodiment, and will not be described in detail here. The movement of the angle adjuster unlocking assembly is also the same as that in the first embodiment. For details, please refer to Figure 1 and Figures 30 to 32 shown.

[0088] Of course, in some embodiments, the damper may not be provided. The difference from the second embodiment is that on the other side, only the third shaft member 39 passes through the second sheet metal 32 and is fixedly connected to the second connecting leg 22. A second mounting hole 325 is formed in the second sheet metal 32 at a position opposite to the rotation center of the angle adjuster 34. A transfer sleeve 326 through which the third shaft member 39 passes is fixedly connected in the second mounting hole 325. The specific structural forms of the transfer sleeve 326 and the third shaft member 39 may be the same as those in the second embodiment to form a second stop mechanism.

[0089] Regarding the stop motion conditions on both sides of the armrest frame 1: Refer to Figure 1 and Figures 33 to 35 As shown, when the armrest frame 1 is in the closed state (i.e., Figure 1 the S2 state), the positions of the unlocking piece 41, the unlocking strap 42, the first limiting stopper 36, the second limiting stopper 37, the third limiting stopper 391, and the fourth limiting stopper 327 are as shown in Figure 33 As shown, there is a certain distance between the limiting portion 361 of the first limiting stopper 36 and the second limiting stopper 37. The two third limiting stoppers 391 are respectively located in two circumferential sections and are respectively in contact with the first surfaces of the two fourth limiting stoppers 327. When the armrest needs to be opened, pull the unlocking strap 42 according to the above-mentioned angle adjuster unlocking method, so that the unlocking point 343 rotates clockwise by a certain angle, as shown in Figure 34 As shown, during this rotation process, the positions of the first limiting stopper 36, the second limiting stopper 37, the third limiting stopper 391, and the fourth limiting stopper 327 do not change. Until the angle adjuster 34 is unlocked, as shown in Figure 35 As shown, at this time, under the rotational action of the rotating disk 341 of the angle adjuster 34 relative to the fixed disk 342, the first sheet metal 31 drives the armrest frame 1 to move in the opening direction. Since the second limiting stopper 37 is fixedly connected to the first sheet metal 31, and the first limiting stopper 36 is fixedly connected to the armrest bracket 2, and the armrest bracket 2 is fixed on the seat assembly and remains stationary. Therefore, when the armrest frame 1 moves in the opening direction, it will drive the first sheet metal 31 and the second limiting stopper 37 to move. When the armrest frame 1 moves to the fully opened state (i.e., Figure 1When in the S1 state), the second limit stop 37 moves clockwise to contact the limit portion 361 of the first limit stop 36, and the first limit stop 36 is blocked by the limit portion 361 to prevent the armrest frame 1 from continuing to move, thereby achieving the stop at one side. In addition, since the third limit stop 391 is fixedly connected to the armrest bracket 2 based on the third shaft member 39, and the fourth limit stop 327 is fixedly connected to the second sheet metal 32 based on the adapter sleeve 326, when the armrest frame 1 moves in the opening direction, the adapter sleeve 326 rotates accordingly, while the two third limit stops 391 remain stationary, resulting in the positions of the two fourth limit stops 327 changing relative to the two third limit stops 391 respectively. When the armrest frame 1 moves to the fully open state, the two third limit stops 391 respectively contact the second surfaces of the two fourth limit stops 327 to block the two fourth limit stops 327 and prevent the armrest frame 1 from continuing to move, thereby achieving the stop at the other side.

[0090] In this embodiment, the angle adjuster 34 and the damper 38 are integrated on the module sheet metal assembly 3 and installed as a whole at the opening part of the armrest frame 1, so that the armrest frame 1 using a U-shaped tube can have both the angle adjuster, damper and stop functions at the same time. While enriching the additional functions, the installation positions of the additional functions are centralized, and only the part of the module sheet metal assembly needs to be wrapped with a plastic cover plate, without wrapping the entire armrest frame 1. Specifically, as Figure 17 and Figure 18 shown, compared with the first embodiment, this embodiment uses larger upper cover 51 and lower cover 52 to cover the part of the module sheet metal assembly 3, without wrapping the whole, reducing the volume, weight and cost of the armrest assembly. Regarding the assembly process of this embodiment, it is basically the same as that of the first embodiment, and specific details can be referred to Figure 36 shown.

[0091] Third embodiment: Refer to Figures 37 to 45 shown, the module sheet metal assembly 3 integrates the angle adjuster function, damping function and stop function. The armrest frame 1 in this embodiment uses a sheet metal frame, which has high strength, large weight and a long frame, facilitating platformization and belonging to a luxury configuration armrest. Compared with the second embodiment, the difference of this embodiment lies only in the different armrest frame 1. In this embodiment, a sheet metal frame is used as the armrest frame 1. Since mounting holes can be set on the sheet metal frame, the armrest assembly of this embodiment can be configured with more functions, such as setting a storage space and a display panel, etc. Specifically, as Figures 37 to 39As shown, in addition to the basic framework composed of the armrest skeleton 1, the armrest bracket 2, and the module sheet metal assembly 3, the armrest assembly of this embodiment further includes a storage box assembly 61, an armrest covering assembly 62, a right side trim 63, a left side trim 64, a cover plate assembly 66, a headrest covering assembly 67, and a cup holder assembly 69. The assembly process includes: first, connecting the armrest body covering assembly 62 to the basic framework with screws; then snap-connecting the unlocking pull strap 42; using screws to connect the headrest covering assembly 67 and the cup holder assembly 69. Specifically, after inserting the cup holder assembly 69 into the headrest covering assembly 67, it is connected to the basic framework with screws; then, the storage box assembly 61 is snap-connected to the basic framework and fixed with screws; then, the right side trim 63, the left side trim 64, and the panel assembly 68 are snap-connected; finally, the cover plate assembly 66 is pivotally connected to the storage box assembly 61 with a pin, so that the storage space of the storage box assembly 61 can be exposed when the cover plate assembly 66 is opened, facilitating the placement of objects. The panel assembly 68 of this embodiment can be set as a panel with a display, and the required wire harness assembly 65 is laid between the storage box assembly 61 and the basic framework. Since the armrest assembly of this embodiment needs to be configured with more functions, the requirement for the structural strength of the basic framework is higher. Therefore, a sheet metal framework needs to be used as the armrest skeleton 1. Correspondingly, a support structure for supporting the functional modules should also be preset on the armrest skeleton 1, such as Figures 40 to 45 As shown, the armrest skeleton 1 includes two main sheet metals 11a arranged parallel and opposite to each other. The module sheet metal assembly 3 is installed on the open side at one end of the two main sheet metals 11a. The two main sheet metals 11a are inserted and fixed on the relative inner sides of the first sheet metal 31 and the second sheet metal 32. The angle adjuster 34 is arranged between the first sheet metal 31 and the first connecting leg 21, and the damper 38 is arranged on the relative inner side of the second sheet metal 32. Some auxiliary strengthening members are arranged between the two main sheet metals 11a, and these auxiliary strengthening members are flexibly set according to the different functions configured by the armrest assembly. For example Figure 40 , Figure 41 and Figure 44 As shown, an intermediate support 19 and a front support 18 are respectively fixedly connected between the middle parts and the other ends of the two main sheet metals 11a to support the storage box assembly 61. Another example is Figure 42 , Figure 43 and Figure 45 As shown, a headrest support rod 671, a headrest support sheet metal 672, a pull strap unlocking mechanism 673, a panel support sheet metal 681, and a support rib 691 are fixedly arranged between the two main sheet metals 11a at the open end of the other end of the armrest skeleton 1. The headrest support sheet metal 672 and the headrest support rod 671 are used to support the headrest covering assembly 67; the pull strap unlocking mechanism 673 is used to support the unlocking pull strap 42; the panel support sheet metal 681 is used to support the panel assembly 68; the support rib 691 is U-shaped and is fixedly arranged between the two main sheet metals 11a with the opening facing downwards to support the cup holder assembly 69.

[0092] The structures and operating principles of the module sheet metal assembly 3, the two side position-limiting mechanisms, and the angle adjuster unlocking assembly are the same as those of the second embodiment, and will not be elaborated here.

[0093] In summary, the module sheet metal assembly 3 of the present utility model can be conveniently assembled onto various forms of armrest skeletons 1 (such as the three above-mentioned embodiments, corresponding to a simple armrest, a medium-configured armrest, and a luxury-configured armrest) as required, with flexible and convenient assembly. Moreover, the module sheet metal assembly 3 can integrate an angle adjuster 34, a damper 38, and a position-limiting function, without occupying much external space of the armrest bracket 2, and is suitable for occasions with high requirements for the armrest size. It should be noted that the dimensions of the parts of the first sheet metal 31 and the second sheet metal 32 of the present utility model for connecting to the armrest skeleton 1 are reserved with installation margins, which can meet the installation of armrest skeletons 1 of different sizes. For example, Figure 19 , Figure 21 and Figure 45 As shown, the distance between the two first receiving edges 315 of the first sheet metal 31, and the distance between the two second receiving edges 323 of the second sheet metal 32 are both greater than the vertical diameters of the main pipe 11 and the main sheet metal 11a. For the first embodiment, the U-shaped opening width of the second sheet metal 32 is greater than the thickness of the main pipe 11. The above are only some preferred embodiments, and the module sheet metal assembly 3 of the present utility model can also be used for other forms of armrest skeletons, and will not be exemplified one by one here.

[0094] The present utility model has been described in detail with reference to the accompanying drawings and embodiments. Those of ordinary skill in the art can make various variations to the present utility model according to the above description. Therefore, certain details in the embodiments should not constitute a limitation to the present utility model, and the protection scope of the present utility model will be defined by the scope of the appended claims.

Claims

1. An armrest assembly, comprising an armrest frame and an armrest bracket for fixing to a seat assembly, characterized in that: It also includes a module sheet metal assembly, which includes an angle adjuster, a first sheet metal, a second sheet metal and a jumper sheet metal; the first sheet metal and the second sheet metal are respectively fixedly connected to the two sides of the armrest frame, and the jumper sheet metal is fixedly connected between the first sheet metal and the second sheet metal; the armrest bracket is formed with a first connecting leg and a second connecting leg respectively connected to the first sheet metal and the second sheet metal, the angle adjuster is located between the armrest bracket and the armrest frame, and the rotating disk and the fixed disk of the angle adjuster are respectively fixedly connected to the armrest frame and the armrest bracket; under the action of the angle adjuster, the armrest frame can rotate relative to the armrest bracket.

2. The armrest assembly according to claim 1, characterized in that: The angle adjuster is located between the first connecting leg and the first sheet metal, and the rotating disk and the fixed disk of the angle adjuster are fixedly connected to the first sheet metal and the first connecting leg respectively.

3. The armrest assembly according to claim 2, characterized in that: A first stop mechanism is provided between the module sheet metal assembly and the armrest bracket, which is used to limit the armrest frame by preventing the first sheet metal from rotating relative to the first connecting leg when the armrest frame is rotated to the designed open position relative to the armrest bracket. The first stop mechanism is located between the first sheet metal and the first connecting leg.

4. The armrest assembly according to claim 3, characterized in that: The fixed plate is fixedly connected to the first connecting leg through a first shaft; the first stop mechanism includes a first limit stop fixedly connected to the first shaft or the fixed plate and a second limit stop fixedly connected to the first sheet metal or the rotating plate. When the armrest frame is rotated to the designed open position relative to the armrest bracket, the second limit stop contacts the first limit stop and is blocked and limited by the first limit stop.

5. The armrest assembly according to claim 2, characterized in that: An unlocking point exposed to the inner side of the first sheet metal is provided on the rotating disk; the armrest assembly also includes a recliner unlocking component arranged inside the armrest frame, the recliner unlocking component includes an unlocking piece and an unlocking pull strap, one end of the unlocking piece is fixed to the unlocking point of the recliner, the other end of the unlocking piece is hinged to one end of the unlocking pull strap, and the other end of the unlocking pull strap passes through the armrest frame to form an operating end for pulling operation.

6. The armrest assembly according to claim 2, characterized in that: The armrest frame is a U-shaped tube, and the bridging sheet metal is a limiting shaft vertically fixed between the first sheet metal and the second sheet metal. When the armrest frame is rotated to a designed open position relative to the armrest bracket, the limiting shaft contacts the armrest bracket and is blocked by the armrest bracket to limit the armrest frame.

7. The armrest assembly according to claim 6, characterized in that: The limiting axis extends beyond the second sheet metal to form a limiting section, and the second connecting leg is provided with a limiting groove. When the armrest frame is rotated to a designed open position relative to the armrest bracket, the limiting section is blocked and limited in the limiting groove.

8. The armrest assembly according to claim 7, characterized in that: The second connecting leg is hingedly connected to the second sheet metal via a second shaft. The second sheet metal is provided with a fixing groove for fixing the limiting axis and facilitating the limiting axis to extend beyond the second sheet metal, and a first pivot hole for the second shaft to pass through. The fixing groove and the first pivot hole are staggered.

9. The armrest assembly according to claim 2, characterized in that: The handrail frame is a U-shaped tube or sheet metal frame, the bridging sheet metal is a U-shaped sheet metal, both ends of the U-shaped sheet metal are formed with U-shaped edges, and the first sheet metal and the second sheet metal are formed with receiving edges for overlapping and fixing with the U-shaped edges.

10. The armrest assembly according to claim 9, characterized in that: A second stop mechanism is also provided between the module sheet metal assembly and the armrest bracket, which is used to limit the armrest frame by preventing the second sheet metal from rotating relative to the armrest bracket when the armrest frame rotates to the designed open position relative to the armrest bracket. The second stop mechanism is located between the second sheet metal and the second connecting leg.

11. The armrest assembly according to claim 10, characterized in that: The second connecting leg is hingedly connected to the second sheet metal through a third shaft, and a switching sleeve for the third shaft to pass through is fixedly connected to the second sheet metal; the second stopping mechanism includes a third limit stopper fixedly connected to the outer circumferential surface of the third shaft and a fourth limit stopper fixedly connected to the inner circumferential surface of the switching sleeve, and when the armrest frame is rotated to the designed open position relative to the armrest bracket, the fourth limit stopper contacts the third limit stopper and is blocked and limited by the third limit stopper.

12. The armrest assembly according to claim 11, characterized in that: The module sheet metal assembly also includes a damper located on the relatively inner side of the second sheet metal; the damping limit shaft of the damper is fixedly connected to the second sheet metal, and the damping rotating shaft of the damper is fixedly connected to the third shaft.

13. The armrest assembly according to claim 1, characterized in that: The armrest assembly also includes an upper cover and a lower cover that wrap the module sheet metal assembly, and an upper foam, a lower foam and a face cover that are arranged outside the upper cover and the lower cover.

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