Automobile seat with hidden armrest

Abstract

The application discloses a car seat with a hidden handrail, comprising a backrest, a mounting base arranged in the middle of the backrest, a handrail mechanism arranged on the mounting base, the handrail mechanism comprising a transmission rod, a handrail fixedly connected to the outer end of the transmission rod, and a rotating disc rotatably arranged on the transmission rod, the rotating disc being provided with a mounting through hole, the transmission rod being axially slidably arranged in the mounting through hole of the rotating disc, and a limiting assembly arranged between the rotating disc and the transmission rod and used for synchronously rotating the transmission rod with the rotating disc; the handrail mechanism further comprises a first power assembly and a second power assembly, the first power assembly being used for driving the handrail to perform telescopic movement, and the second power assembly being used for driving the handrail to perform rotary movement; a storage groove is arranged on the side of the backrest, the first power assembly drives the handrail to move in and out telescopically, and the handrail can be switched between being stored in the storage groove and being extended out of the storage groove. The application has the beneficial effects that the step-by-step adjustment of the extension and the angle rotation of the handrail is realized, and the compactness of storage is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile parts, in particular to an automobile seat with a hidden armrest. 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 are mainly of two forms, one is standing 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 the space in the car when not in use.

[0003] In order to meet the increasingly variable in-car application environment, the market has appeared hidden seat armrests, 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, which 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 carried out at the same time. On the one hand, the armrest cannot rotate independently and cannot meet the requirement of large-angle swinging. On the other hand, the armrest swinging space is large and the compactness of the seat after folding still has optimization space. SUMMARY

[0004] Therefore, the present application provides an automobile seat with a hidden armrest, which can realize step-by-step adjustment of the extension and angle rotation of the armrest, and is beneficial to electric control and improvement of storage compactness.

[0005] To achieve the above-mentioned purpose, the technical scheme of the present application is as follows:

[0006] An automobile seat with a hidden armrest, comprising a backrest, wherein a mounting base is arranged in the middle of the backrest, an armrest structure is arranged on the mounting base, the armrest structure comprises a transmission rod extending along 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 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 along the axial direction of the rotating disc, so as to drive the armrest to extend and retract, and the second power assembly is used for driving the rotating disc to rotate, so as to drive the armrest to rotate;

[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 receiving groove, 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 be adapted 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] As a preferred example, 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] As a preferred example, 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] As a preferred example, the mounting base comprises a backrest cross beam and a backrest edge plate, the transmission rod is 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] As a preferred example, 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 in 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] As a preferred example, a guide structure protruding outward in the radial direction is formed in the side wall of the threaded fitting, a limiting groove is formed in the backrest cross beam in the axial direction of the lead screw, and the guide structure is slidably sleeved in the limiting groove. With the above structure, the rotation of the threaded fitting is limited.

[0015] As a preferred example, an arc-shaped groove is formed in the side wall of the inner end of the transmission rod in the circumferential direction, 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 be independently rotated.

[0016] As a preferred example, the second power assembly comprises a second motor fixed on the backrest edge plate, a gear connected to the output shaft of the second motor, a tooth portion provided on the outer side of the rotating disc and engaged with the gear, and the rotating disc is in power connection with the gear. With the above structure, the rotating disc is rotated by the gear transmission to drive the armrest to rotate.

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

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

[0019] Compared with the prior art, the beneficial effects of the present application are:

[0020] 1. The automobile seat with a hidden handrail provided by the present application has a receiving groove on the side of the automobile seat, which is suitable for the shape of the handrail, and the handrail 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 handrail are independent, the extension and angle rotation of the handrail 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 handrail mechanisms on the left and right sides are opposite, and the extension of the handrails on both sides can be realized synchronously by driving the two handrails with one motor, which is good in synchronization, convenient to install and adjust, and space-saving. BRIEF DESCRIPTION OF DRAWINGS

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

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

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

[0026] Figure 4 is a schematic view of the structure of the handrail mechanism B;

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

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

[0029] Figure 7 is a schematic view of the handrail 4 unfolded to the limit position;

[0030] Figure 8 is a schematic view of the limiting groove 11a;

[0031] Figure 9 Fig. 2 is a schematic view showing the connection of the two lead screws 62;

[0032] Figure 10 Fig. 3 is a schematic view showing the armrest 4 in the storage slot C. DETAILED DESCRIPTION

[0033] The present application is further described below in conjunction with the embodiments and the accompanying drawings.

[0034] As shown in Figure 1 and Figure 2 , an automobile seat with a hidden armrest comprises a backrest A, a mounting base 1 is arranged in the middle of the backrest A, and an armrest mechanism B is arranged on each of the left and right sides of the mounting base 1. As shown in Figure 3 , the mounting base 1 comprises a backrest cross beam 11 and a backrest side plate 12 perpendicular to the backrest cross beam 11, and the backrest cross beam 11 is along the width direction of the backrest A. As shown in Figure 4 , the armrest mechanism B comprises a transmission rod 3 reciprocally movably mounted on the backrest cross beam 11, an armrest 4 fixedly connected to the outer end of the transmission rod 3, and a rotating disc 2 rotatably mounted on the transmission rod 3, wherein a mounting through hole 2a is arranged in the middle of the rotating disc 2, and the transmission rod 3 is axially slidably arranged in the mounting through hole 2a.

[0035] As shown in Figure 5 , a limiting assembly 5 for synchronously rotating the transmission rod 3 with the rotating disc 2 is arranged between the rotating disc 2 and the transmission rod 3, a strip-shaped slot 3c is axially arranged in the side wall of the transmission rod 3, the limiting assembly 5 comprises an anti-rotation strip 51 axially arranged on the outer side of the transmission rod 3, the lower end of the anti-rotation strip 51 is fixedly mounted in the strip-shaped slot 3c, an anti-rotation slot 2b adapted to the anti-rotation strip 51 is arranged in the side wall of the mounting through hole 2a, and the anti-rotation strip 51 and the anti-rotation slot 2b are in sliding fit.

[0036] As shown in Figure 6 , the armrest mechanism B further comprises a second power assembly 7, the second power assembly 7 comprises a second motor 64 fixedly arranged on the backrest side plate 12, a gear 65 connected to the output shaft of the second motor 64, a tooth portion 2c arranged on the outer side of the rotating disc 2 and engaged with the gear 65, and the rotating disc 2 is in power connection with the gear 65 through the tooth portion 2c, the second motor 64 drives the gear 65 to rotate, and the transmission rod 3 rotates under the transmission of the rotating disc 2 to drive the armrest 4 to rotate.

[0037] As shown in Figure 5 and Figure 7As 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 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 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, 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 slidingly sleeved in the first limiting portion 51a and the second limiting portion 3b during the sliding process, so as to limit the limit positions 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, Figure 3 and Figure 9 As shown, 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 is connected to the two lead screws 62 through a synchronous rod 66, the threads of the two lead screws 62 are opposite to each other, so as to realize synchronous extension and retraction, save the installation space inside the seat back A, ensure the synchronism of the extension and retraction of the armrests 4 on both sides, and improve the comfort of passengers. Figure 1 and Figure 10 As shown, 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, 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 threaded 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 threaded 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 motion and the telescopic motion 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 for the preferred embodiments of the present application, and those skilled in the art can make various similar modifications under the inspiration of the present application without departing from the purpose and scope of the present application, and such modifications fall within the protection scope of the present application.

Claims

1. A car seat with a hidden armrest, comprising a backrest (A), characterized in that, The middle of the backrest (A) is provided with a mounting base (1), and the left and right sides of the mounting base (1) are respectively 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 synchronously rotating the transmission rod (3) 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) comprises a first motor (61) and a lead screw (62) driven by the first motor (61), and 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 lead screws (62) of the two armrest mechanisms (B) are driven by the same first motor (61). The first motor (61) is connected to the two lead screws (62) through a synchronous rod (66), and the rotation directions of the two lead screws (62) are opposite. The side of the backrest (A) is provided with a storage 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 storage groove (C) and being extended out of the storage groove (C).

2. The automobile seat with a hidden armrest 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. An anti-rotation groove (2b) suitable for the anti-rotation strip (51) is formed in the side wall of the mounting through hole (2a). The anti-rotation strip (51) and the anti-rotation groove (2b) are in sliding fit.

3. The vehicle seat having a hidden armrest according to claim 2, characterized in that: A strip-shaped groove (3c) is formed in the side wall of the transmission rod (3) in the axial direction. The anti-rotation strip (51) is fixedly installed in the strip-shaped groove (3c).

4. The vehicle seat having a hidden armrest according to claim 1, wherein: The mounting base (1) comprises a backrest cross beam (11) and a backrest edge plate (12). The transmission rod (3) is movably installed on the backrest cross beam (11). The rotating disc (2) is rotatably installed on the backrest edge plate (12).

5. The vehicle seat having a hidden armrest according to claim 4, characterized in that: The first motor (61) is fixedly arranged on the backrest cross beam (11). The lead screw (62) is rotatably arranged on the backrest cross beam (11). The transmission rod (3) is in a hollow structure, and a gap is sleeved on the lead screw (62). A threaded fitting part (63) is installed in the transmission rod (62) in a threaded fit manner.

6. The vehicle seat having a hidden armrest according to claim 5, characterized in that: A guide structure (631) protruding outward in the radial direction is arranged on the side wall of the threaded fitting part (63). A limiting groove (11a) in the axial direction of the lead screw (62) is formed in the backrest cross beam (11). The guide structure (631) is slidably sleeved in the limiting groove (11a).

7. The vehicle seat having a hidden armrest according to claim 6, characterized in that: The inner end side wall of the transmission rod (3) is provided with an arc-shaped slot (3a) along the circumference thereof, and the guide structure (631) is also sleeved in the arc-shaped slot (3a).

8. The vehicle seat having a hidden armrest according to claim 4, wherein: The second power assembly (7) comprises a second motor (64) fixed on the backrest edge 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 automobile seat with a hidden armrest 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.

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