Seat armrest capable of being hidden and accommodated in side part of backrest

Abstract

The utility model discloses a seat armrest capable of being hidden and accommodated at the side part of a backrest, which comprises the backrest, a mounting base arranged at the middle part of the backrest, an armrest mechanism arranged on the mounting base, the armrest mechanism comprises a transmission rod, an armrest fixedly connected at the outer end of the transmission rod and a turntable rotationally arranged on the transmission rod, and the turntable is provided with a mounting through hole. The transmission rod can be axially and slidably arranged in the mounting through hole of the turntable in a penetrating manner; a limiting assembly for enabling the transmission rod to synchronously rotate along with the turntable is arranged between the turntable and the transmission rod; the handrail mechanism further comprises a first power assembly and a second power assembly, the first power assembly is used for driving the handrail to stretch out and draw back, and the second power assembly is used for driving the handrail to rotate. A storage groove is formed in the side portion of the backrest, the first power assembly drives the armrests to stretch out and draw back inwards and outwards, and the armrests can be switched between being stored in the storage groove and stretching out of the storage groove. The folding armrest has the advantages that step-by-step adjustment of extension and angle rotation of the armrest is achieved, and the storage compactness is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts, and specifically relates to a seat armrest capable of being hidden and stored in the side of a backrest. BACKGROUND

[0002] With the improvement of people's living standards, consumers have higher and higher requirements for the quality of automotive interior and the comfort of riding. In order to meet the diversified needs of consumers, more and more vehicle models begin to be equipped with seat armrests to improve the comfort of riding. The traditional automobile seat armrests mainly have two forms, one of which is erected on the side of the seat backrest and can be manually turned out forward, and the other form is fixed on both sides of the seat. The traditional two forms have single function, are not convenient to use, and occupy space in the vehicle when not in use.

[0003] In order to meet the increasingly variable in-vehicle application environment, hidden seat armrests appear on the market, that is, the armrests can be stored in the side of the seat and unfolded when used. Although the hidden seat armrests reduce the space occupation on both sides of the seat when not in use, most of them currently only have two adjustable states of the extended state and the folded state, are not intelligent enough, and cannot adapt to the use needs of different passengers. In addition, the adjustment mode of most armrests is a composite motion, that is, the extension and rotation of the armrest are performed simultaneously, on the one hand, the armrest cannot be independently rotated, and cannot meet the requirement of large-angle swinging, on the other hand, the armrest swings in a large space, and the compactness of the seat after folding still has optimization space. SUMMARY

[0004] Therefore, the utility model provides a seat armrest capable of being hidden and stored in the side of a backrest, which can realize step-by-step adjustment of the extension and angle rotation of the armrest, is beneficial to electric control and improves the storage compactness.

[0005] To achieve the above-mentioned purpose, the utility model technical scheme is as follows:

[0006] A seat armrest capable of being hidden and stored in the side of a backrest, comprising a backrest, wherein a mounting base is arranged in the middle of the backrest, a seat armrest structure is arranged on the mounting base, the seat armrest structure comprises a transmission rod extending in the width direction of the backrest, an armrest fixedly connected to the outer end of the transmission rod, and a rotating disc rotatably mounted on the transmission rod, the rotating disc is provided with a mounting through hole, the transmission rod is axially slidably arranged in the mounting through hole of the rotating disc, and a limiting assembly is arranged between the rotating disc and the transmission rod, the limiting assembly is used for enabling the transmission rod to rotate synchronously with the rotating disc;

[0007] The seat armrest structure further comprises a first power assembly and a second power assembly, the first power assembly is used for driving the transmission rod to reciprocate in the axial direction of the rotating disc, so as to drive the armrest to perform extension and retraction motion, and the second power assembly is used for driving the rotating disc to rotate, so as to drive the armrest to perform rotation motion;

[0008] The backrest side is provided with a receiving groove, and the first power assembly drives the armrest to move in and out of the armrest, so that the armrest can be switched between being received in the receiving groove and being extended out of the receiving groove.

[0009] With the above structure, the armrest can be hidden and received in the seat side, and the receiving groove is shaped to adapt to the shape of the armrest, so that the armrest is compactly received. The extension and rotation of the armrest are independently performed, so that the armrest can be step by step adjusted in extension and angle rotation, has multiple adjustable states, is flexible to use, and can meet the use requirements of different passengers.

[0010] Preferably, the limiting assembly comprises an anti-rotation strip fixed on the outer side of the transmission rod in the axial direction, and an anti-rotation groove is formed in the side wall of the mounting through hole and adapted to the anti-rotation strip, and the anti-rotation strip and the anti-rotation groove are in sliding fit. With the above structure, the transmission rod and the rotating disc are synchronously rotated to drive the armrest to rotate.

[0011] Preferably, a strip-shaped groove is formed in the side wall of the transmission rod in the axial direction, and the anti-rotation strip is fixedly installed in the strip-shaped groove. With the above structure, the installation is convenient and the structure is stable.

[0012] Preferably, the mounting base comprises a backrest cross beam and a backrest edge plate, the transmission rod is reciprocally movably installed on the backrest cross beam, and the rotating disc is rotatably installed on the backrest edge plate. With the above structure, the structure is compact and the installation is convenient.

[0013] Preferably, the first power assembly comprises a first motor fixed on the backrest cross beam, a lead screw driven by the first motor, and a threaded fitting in thread fit with the lead screw, the lead screw is rotatably arranged on the backrest cross beam, the transmission rod is a hollow structure, the gap is sleeved on the lead screw, and the threaded fitting is installed in the transmission rod. With the above structure, the power is transmitted.

[0014] Preferably, a guide structure protruding outward in the radial direction of the threaded fitting is formed in the side wall of the threaded fitting, a limiting groove in the axial direction of the lead screw is formed in the backrest cross beam, and the guide structure is slidably sleeved in the limiting groove. With the above structure, the rotation of the threaded fitting is limited.

[0015] Preferably, an arc-shaped groove in the circumferential direction of the transmission rod is formed in the side wall of the inner end of the transmission rod, and the guide structure is also slidably sleeved in the arc-shaped groove. With the above structure, the transmission rod moves synchronously with the threaded fitting in the axial direction, and the transmission rod can also rotate independently.

[0016] As preferred: the second power assembly comprises a second motor fixed on the backrest side plate, a gear connected with the output shaft of the second motor, a tooth part meshing with the gear arranged on the outer side of the rotating disc, and the rotating disc is in power connection with the gear. By the above structure, the rotating disc is rotated through the gear transmission to drive the armrest to rotate.

[0017] As preferred: the inner end of the anti-rotation strip is provided with a first limiting part protruding outward, and the outer end of the transmission rod is provided with a second limiting part protruding outward. By the above structure, the extension position of the armrest is limited.

[0018] As preferred: the mounting base is provided with an armrest structure on each of the left and right sides, the lead screws of the two armrest structures are driven by a first motor, the first motor is connected with the two lead screws through a synchronous rod, and the rotation directions of the two lead screws are opposite. By the above structure, the structure is compact and space-saving, the extension and retraction of the armrests on the two sides can be realized synchronously through the driving of one first motor, the adjustment is convenient, and the comfort of riding is improved.

[0019] Compared with the prior art, the utility model has the advantages that:

[0020] 1. The seat armrest provided by the utility model can be hidden in the side part of the backrest, the side part of the automobile seat has a receiving groove suitable for the shape of the armrest, and the armrest can be hidden and received in the receiving groove, so that the overall receiving layout is simple and compact.

[0021] 2. The extension and rotation of the seat armrest are independently performed, the extension and rotation angle of the armrest can be adjusted step by step, the use is flexible, the diversified use requirements of passengers are met, and the comfort of riding is improved.

[0022] 3. The rotation directions of the lead screws of the armrest structures on the left and right sides are opposite, so that the extension and retraction of the armrests on the two sides can be realized synchronously through the driving of one motor, the synchronization is good, the installation and adjustment are convenient, and the space is saved. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a side view of the seat;

[0024] Figure 2 It is a schematic view of the internal structure of the seat backrest A;

[0025] Figure 3 It is a schematic view of the structure of the mounting base 1;

[0026] Figure 4 It is a schematic view of the structure of the armrest structure B;

[0027] Figure 5 It is a schematic view of the transmission of the lead screw 62;

[0028] Figure 6 It is a schematic view of the folding state of the armrest 4;

[0029] Figure 7 This is a schematic diagram of the armrest 4 extended to its maximum position;

[0030] Figure 8 A schematic diagram illustrating the limiting groove 11a;

[0031] Figure 9 This is a schematic diagram illustrating the connection method of two lead screws 62;

[0032] Figure 10 This is a schematic diagram showing the armrest 4 located within the storage slot C. Detailed Implementation

[0033] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0034] like Figure 1 and Figure 2 As shown, a type of seat armrest that can be hidden and stored in the side of the backrest includes a backrest A, a mounting base 1 in the middle of the backrest A, and an armrest mechanism B on each of the left and right sides of the mounting base 1. Figure 3 As shown, the mounting base 1 includes a backrest crossbeam 11 and a backrest side plate 12 perpendicular to the backrest crossbeam 11. The backrest crossbeam 11 is along the width direction of the backrest A. Figure 4 As shown, the armrest mechanism B includes a transmission rod 3 that is reciprocally mounted on the backrest beam 11, an armrest 4 that is fixedly connected to the outer end of the transmission rod 3, and a turntable 2 that is rotatably mounted on the transmission rod 3. The turntable 2 has a mounting through hole 2a in the middle position, and the transmission rod 3 can slide axially through the mounting through hole 2a.

[0035] like Figure 5 As shown, a limiting component 5 is provided between the turntable 2 and the transmission rod 3 to enable the transmission rod 3 to rotate synchronously with the turntable 2. A strip groove 3c is provided on the side wall of the transmission rod 3 along the axial direction. The limiting component 5 includes an anti-rotation strip 51 provided on the outer side of the transmission rod along the axial direction. The lower end of the anti-rotation strip 51 is fixedly installed in the strip groove 3c. An anti-rotation groove 2b adapted to the anti-rotation strip 51 is provided on the side wall of the mounting through hole 2a. The anti-rotation strip 51 and the anti-rotation groove 2b are slidably engaged.

[0036] like Figure 6 As shown, the armrest mechanism B also includes a second power assembly 7, which includes a second motor 64 fixed on the backrest side plate 12. The output shaft of the second motor 64 is connected to a gear 65. The outer side of the turntable 2 is provided with a toothed part 2c that meshes with the gear 65. The turntable 2 is poweredly connected to the gear 65 through the toothed part 2c. The second motor 64 drives the gear 65 to rotate, and the transmission rod 3 rotates under the transmission action of the turntable 2 to drive the armrest 4 to rotate.

[0037] like Figure 5 andFigure 7 As shown, the armrest mechanism B further comprises a first power assembly 6, the first power assembly 6 comprises a first motor 61 fixed on the backrest cross beam 11, a lead screw 62 driven by the first motor 61, and a threaded fitting 63 threadedly matched with the lead screw 62, the lead screw 62 is rotationally arranged on the backrest cross beam 11. The transmission rod 3 is a hollow structure, the gap is sleeved on the lead screw 62, and the threaded fitting 63 is installed inside the transmission rod 3. The side wall of the threaded fitting 63 is provided with a guide structure 631 protruding outward along the radial direction thereof, and the inner end side wall of the transmission rod 3 is provided with an arc-shaped groove 3a along the circumferential direction thereof, and the guide structure 631 is slidingly sleeved in the arc-shaped groove 3a. The transmission rod 3 can rotate relative to the threaded fitting 63, and the rotation angle between the two is limited by the movement range of the guide structure 631 in the arc-shaped groove 3a. As shown in the figure, Figure 8 As shown, the backrest cross beam 11 is provided with a limiting groove 11a in the axial direction of the lead screw 62, the guide structure 631 penetrates out of the arc-shaped groove 3a and is also slidingly sleeved in the limiting groove 11a. The first motor 61 drives the lead screw 62 to rotate, the threaded fitting 63 is limited to move in the axial direction of the lead screw 62 by the limiting groove 11a, and the transmission rod 3 slides synchronously with the threaded fitting 63 to drive the armrest 4 to extend and retract.

[0038] As shown in the figure, Figure 5 In the embodiment, the inner end of the anti-rotation strip 51 is provided with a first limiting portion 51a protruding outward, the outer end of the transmission rod 3 is provided with a second limiting portion 3b protruding outward, the first limiting portion 51a and the second limiting portion 3b are both rectangular, and the transmission rod 3 is in sliding process, the rotating disc 2 cooperates with the first limiting portion 51a and the second limiting portion 3b to limit the limit position of the inner and outer ends of the armrest 4, that is, to define the stroke of the extension and retraction movement of the armrest 4.

[0039] As shown in the figure, Figure 3 and Figure 9 As shown in the figure, the mounting base 1 is provided with one armrest mechanism B on each of the left and right sides, the lead screws 62 of the two armrest mechanisms B are driven by one first motor 61, the first motor 61 connects the two lead screws 62 through a synchronous rod 66, the threads of the two lead screws 62 are opposite, which can realize synchronous extension and retraction, save the installation space inside the seat back A, and ensure the synchronization of the extension and retraction of the armrests 4 on both sides, thereby improving the comfort of passengers. Figure 1 and Figure 10 As shown in the figure, the seat back A is provided with a receiving groove C, the armrest 4 can be hiddenly received in the side of the seat, and the shape of the receiving groove C is adapted to the shape of the armrest 4, and the receiving layout is compact.

[0040] As shown in the figure, Figure 7As shown, the working principle of the unfolding process of the handrail 4 is as follows: the first motor 61 drives the screw rod 62 to rotate, the screw thread fitting 63 moves outward along the screw rod under the limiting action of the limiting groove 11a, the transmission rod 3 moves synchronously with the screw thread fitting 63 under the limiting action of the slot width of the arc-shaped groove 3a, so as to drive the handrail 4 to extend outward, in this process, the anti-rotation strip 51 cooperates with the anti-rotation groove 2b, the transmission rod 3 cannot rotate under the condition that the rotating disc 2 does not rotate, and the limit position of the extension of the handrail 4 is the position where the first limiting part 51a abuts against the side surface of the rotating disc 2, within this range, the handrail 4 can stop at any position.

[0041] As shown in the figure, Figure 6 the working principle of the folding process of the handrail 4 is as follows: the second motor 64 drives the gear 65 to rotate, the rotating disc 2 rotates under the transmission action of the gear 65, the transmission rod 3 rotates synchronously with the rotating disc 2 under the limiting action of the limiting assembly 5, so as to drive the handrail 4 to rotate, after the guiding structure 631 slides to the end position of the arc-shaped groove 3a, the first motor drives the screw rod 61 to drive the screw rod 62 to rotate reversely, the transmission rod 3 moves inward under the guiding and limiting action of the limiting groove 11a and the arc-shaped groove 3a, and when the second limiting part 3b abuts against the side surface of the rotating disc 2, the handrail 4 is just accommodated in the accommodation groove C.

[0042] In this embodiment, after the handrail 4 extends outward and leaves the accommodation groove C, the rotating movement and the telescopic movement of the handrail 4 do not interfere with each other, the step-by-step adjustment of the extension and the angle rotation of the handrail 4 can be realized, that is, the handrail 4 can be first extended outward and then rotated forward, or first rotated forward and then extended outward, or simultaneously performed, and can be kept at any position within a certain range, which is beneficial to the electric control, has multiple adjustable states, is flexible to use, and can meet the use requirements of different passengers.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the utility model, and those skilled in the art can make various similar representations under the inspiration of the utility model without deviating from the purpose and claims of the utility model, and such changes fall within the protection scope of the utility model.

Claims

1. A seat armrest capable of concealing a seat arm housed in a side portion of a backrest, comprising a backrest (A), characterized in that, The middle of the backrest (A) is provided with a mounting base (1), and the mounting base (1) is provided with an armrest mechanism (B). The armrest mechanism (B) comprises a transmission rod (3) extending along the width direction of the backrest (A), an armrest (4) fixedly connected to the outer end of the transmission rod (3), and a rotating disc (2) rotatably installed on the transmission rod (3). The rotating disc (2) is provided with a mounting through hole (2a), the transmission rod (3) is axially slidably arranged in the mounting through hole (2a) of the rotating disc (2), and a limiting assembly (5) is arranged between the rotating disc (2) and the transmission rod (3). The limiting assembly (5) is used for enabling the transmission rod (3) to rotate synchronously with the rotating disc (2). The armrest mechanism (B) further comprises a first power assembly (6) and a second power assembly (7). The first power assembly (6) is used for driving the transmission rod (3) to axially reciprocate along the rotating disc (2) to drive the armrest (4) to perform telescopic movement. The second power assembly (7) is used for driving the rotating disc (2) to rotate to drive the armrest (4) to perform rotary movement. The side of the backrest (A) is provided with a receiving groove (C). The first power assembly (6) drives the armrest (4) to move in and out telescopically, so that the armrest (4) can be switched between being stored in the receiving groove (C) and extending out of the receiving groove (C).

2. The seat arm capable of being concealed in the side portion of the backrest according to claim 1, characterized in that: The limiting assembly (5) comprises an anti-rotation strip (51) fixedly arranged on the outer side of the transmission rod (3) in the axial direction. The side wall of the mounting through hole (2a) is provided with an anti-rotation groove (2b) adapted to the anti-rotation strip (51). The anti-rotation strip (51) and the anti-rotation groove (2b) are in sliding fit.

3. The seat arm capable of being concealed in the side portion of the backrest according to claim 2, characterized in that: The side wall of the transmission rod (3) is provided with a strip-shaped groove (3c) in the axial direction. The anti-rotation strip (51) is fixedly installed in the strip-shaped groove (3c).

4. The seat with a hidden armrest received in the side of the backrest according to claim 1, characterized in that: The mounting base (1) comprises a backrest cross beam (11) and a backrest edge plate (12). The transmission rod (3) is telescopically installed on the backrest cross beam (11). The rotating disc (2) is rotatably installed on the backrest edge plate (12).

5. The seat arm capable of being concealed in the side portion of the backrest according to claim 4, characterized in that: The first power assembly (6) comprises a first motor (61) fixedly arranged on the backrest cross beam (11), a lead screw (62) driven by the first motor (61), and a threaded fitting (63) in threaded fit with the lead screw (62). The lead screw (62) is rotatably arranged on the backrest cross beam (11). The transmission rod (3) is in hollow structure and is gapingly sleeved on the lead screw (62). The threaded fitting (63) is installed in the transmission rod (3).

6. The seat with a hidden armrest received in the side of the backrest according to claim 5, characterized in that: The side wall of the threaded fitting (63) is provided with a guide structure (631) protruding outward in the radial direction thereof. The backrest cross beam (11) is provided with a limiting groove (11a) in the axial direction of the lead screw (62). The guide structure (631) is slidingly sleeved in the limiting groove (11a).

7. The seat arm capable of being concealed in the side portion of the backrest according to claim 6, characterized in that: The side wall of the inner end of the transmission rod (3) is provided with an arc-shaped groove (3a) in the circumferential direction thereof. The guide structure (631) is also slidingly sleeved in the arc-shaped groove (3a).

8. The seat with a hidden armrest received in the side of the backrest according to claim 4, characterized in that: The second power assembly (7) comprises a second motor (64) fixed on the backrest side plate (12), the output shaft of the second motor (64) is connected with a gear (65), the outer side of the rotating disc (2) is provided with a tooth portion (2c) engaged with the gear (65), and the rotating disc (2) is in power connection with the gear (65).

9. The seat with a hidden armrest received in the side of the backrest according to claim 2, characterized in that: The inner end of the anti-rotation strip (51) is provided with a first limiting portion (51a) protruding outward, and the outer end of the transmission rod (3) is provided with a second limiting portion (3b) protruding outward.

10. The seat with a seat arm capable of being hidden in a backrest side according to claim 5, characterized in that: The mounting base (1) is provided with a hand supporting mechanism (B) on each of the left and right sides, the lead screws (62) of the two hand supporting mechanisms (B) are driven by a first motor (61), the first motor (61) is connected with the two lead screws (62) through a synchronous rod (66), and the rotation directions of the two lead screws (62) are opposite.

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