An armrest supporting angle-adjustable automobile seat

Abstract

The application discloses an automobile seat with adjustable support angle of armrest, which comprises a seat body, the seat body is provided with a seat support assembly and armrest supports arranged on both sides of the seat support assembly, a first connecting rod and a transmission arm are arranged between the armrest supports and the seat support assembly, both ends of the first connecting rod are rotatably connected to the armrest supports and the rear part of the seat support assembly respectively, both ends of the transmission arm are rotatably connected to the armrest supports and the front part of the seat support assembly respectively, and the armrest supports, the first connecting rod, the seat support assembly and the transmission arm form a four-connecting-rod mechanism; and a driving mechanism is further arranged and used for driving the four-connecting-rod mechanism to move. The application has the beneficial effect that the four-connecting-rod mechanism can be driven to move by the driving mechanism, the support angle of the armrest supports can be adjusted, and the elbow of a user can be comfortably supported in different postures.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile seats, in particular to an automobile seat with adjustable support angle of armrests. BACKGROUND

[0002] To meet the comfort of users, many luxury medium and large MVP and SUVs are usually equipped with floor-type armrests on the middle-row seats. The armrests can provide elbow support for the middle-row passengers in a sitting position, increasing the comfort of the ride. Even in high-end vehicles, the armrests may also integrate a control system, which can control the entertainment system, air conditioner and other devices in the vehicle through the touch screen or buttons on the armrests.

[0003] However, the floor-type armrests are usually fixedly installed on the floor of the vehicle. When the posture of the seat changes, the support angle and position of the armrests do not change. During the process of changing the seat from a sitting position to a lying position, the position and angle of the elbow of a person change significantly. Especially for seats with a zero-gravity function, during the process of changing the seat from a sitting position to a zero-gravity position, the front end of the seat frame is lifted upward, and the backrest is tilted backward. The passenger will be in a state of suspension, and the passenger's arms will move backward and upward. Therefore, the design of the fixed armrests does not conform to ergonomics and cannot provide comfortable support and convenient control for the passenger's elbows. SUMMARY

[0004] Therefore, the present application provides an automobile seat with adjustable support angle of armrests, which can adjust the support angle of the armrests.

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

[0006] An automobile seat with adjustable support angle of armrests comprises a seat body, the seat body has a seat support assembly and armrest supports arranged on both sides of the seat support assembly, and the key lies in that a first connecting rod and a transmission arm are arranged between the armrest supports and the seat support assembly, the two ends of the first connecting rod are respectively rotationally connected to the armrest supports and the rear part of the seat support assembly, the two ends of the transmission arm are respectively rotationally connected to the armrest supports and the front part of the seat support assembly, and the armrest supports, the first connecting rod, the seat support assembly and the transmission arm constitute a four-bar linkage mechanism.

[0007] Further comprising a driving mechanism for driving the four-bar linkage mechanism to move.

[0008] With the above structure, the armrest supports, the first connecting rod, the seat support assembly and the transmission arm constitute a four-bar linkage mechanism. Therefore, when the posture of the seat body changes, the driving mechanism drives the four-bar linkage mechanism to move, so as to adjust the support angle of the armrest supports.

[0009] As preferred: the automobile seat is a zero-gravity seat, the seat support assembly comprises a base and a seat frame above the base, the seat frame is rotationally connected with the rear end of the base, the upper linkage piece and the lower linkage piece are arranged between the front end of the seat frame and the base, one end of the upper linkage piece is rotationally connected with the seat frame, the other end of the upper linkage piece is hingedly connected with the lower linkage piece, and the end of the lower linkage piece away from the upper linkage piece is rotationally connected with the base;

[0010] The end of the transmission arm away from the armrest support is fixedly connected with the lower linkage piece, and the driving mechanism is used for driving the lower linkage piece to rotate relative to the base.

[0011] As preferred: the seat frame is rotationally connected with a backrest at the rear end.

[0012] As preferred: the lower end of the transmission arm is fixedly connected with the outside of the lower linkage piece through a transition support. With the above structure, the armrest support can be outwardly translated and installed, the distance between the two groups of armrest supports is increased, and the seat space is ensured.

[0013] As preferred: the front lower side of the armrest support is provided with a cantilever extending towards the base, and the end of the transmission arm away from the base is hingedly connected with the end of the cantilever. With the above structure, the connection is facilitated.

[0014] As preferred: the lower linkage piece is rotationally installed on both sides of the seat frame through an angle adjuster, the driving mechanism comprises a motor and a synchronous rod driven to rotate by the motor, and the two ends of the synchronous rod are in transmission connection with the angle adjusters.

[0015] As preferred: the seat support assembly is fixedly provided with a transition frame extending upwards, the armrest support is provided with an arc-shaped groove, the transition frame is provided with a guide pillar at the upper end, and the guide pillar is slidingly supported in the arc-shaped groove.

[0016] As preferred: the transition frame is fixedly provided with an adapter plate at the lower part, and the first connecting rod is hingedly connected with the adapter plate at the end away from the armrest support. With the above structure, the shaking amount of the armrest support in the Y direction can be limited, and the stability of the armrest support is improved.

[0017] As preferred: the arc-shaped groove is arranged in an inclined manner.

[0018] Compared with the prior art, the beneficial effects of the present application are:

[0019] 1. In the car seat with adjustable armrest support angle provided by the present invention, the armrest bracket, the first connecting rod, the seat support assembly and the transmission arm form a four-bar linkage. When the posture of the seat body changes, the four-bar linkage can be driven by the driving mechanism to move and adjust the support angle of the armrest bracket to ensure that the user's elbows can be comfortably supported in different postures. At the same time, the touch screen or buttons on the armrest can be easily controlled in the lying state, which has the technical advantages of good comfort and convenient operation.

[0020] 2. When the armrest is used in a zero-gravity chair, by keeping the transmission arm and the lower linkage plate fixedly connected or designing them as a whole, the armrest linkage adjustment can be achieved with the help of the zero-gravity adjustment motor without adding an additional drive source. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural diagram of a car seat;

[0022] Figure 2 for Figure 1 A partial enlarged view of point D in the middle;

[0023] Figure 3 for Figure 1 A partial enlarged view of point E in the middle;

[0024] Figure 4 It is a left side view of the car seat;

[0025] Figure 5 This is a left side view of the car seat in use. DETAILED DESCRIPTION

[0026] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0027] like Figure 1 and Figure 4 As shown, a car seat with adjustable armrest support angle includes a seat body and a drive mechanism. The seat body has a seat support assembly A and armrest brackets 4 arranged on either side of the seat support assembly A in its width direction. A first connecting rod 2 and a transmission arm 3 are provided between the armrest bracket 4 and the seat support assembly A. The first connecting rod 2 has two ends pivotally connected to the armrest bracket 4 and the rear portion of the seat support assembly A, respectively. The transmission arm 3 has two ends pivotally connected to the armrest bracket 4 and the front portion of the seat support assembly A, respectively. The armrest bracket 4, first connecting rod 2, seat support assembly A, and transmission arm 3 form a four-bar linkage. The drive mechanism is capable of driving the four-bar linkage.

[0028] Based on the above structural design, since the armrest bracket 4, the first connecting rod 2, the seat support assembly A and the transmission arm 3 form a four-bar linkage, Figure 5It can be seen that when the seat body posture changes, the four-bar linkage mechanism can be driven to move by the driving mechanism to adjust the support angle of the armrest support 4, so that the user's elbow can be comfortably supported in different sitting postures, and the touch screen or button on the armrest can also be easily controlled in the lying posture. The different postures described in this paragraph mainly refer to the reclining state of the backrest alone. Of course, it can also refer to the zero-gravity state in which the backrest and the cushion are both inclined. The following will be further described by taking the armrest applied to a zero-gravity seat as an example.

[0029] As shown in Figure 1 and 4 , the car seat is a zero-gravity seat, and the seat support assembly A includes a base A2 for mounting to the floor of the vehicle and a seat frame A1 located above the base A2. The rear end of the seat frame A1 is rotatably connected to the base A2, and the rear end of the seat frame A1 is rotatably connected to the backrest 9. In combination with Figure 2 , an upper linkage plate 51 and a lower linkage plate 52 are provided between the front end of the seat frame A1 and the base A2. One end of the upper linkage plate 51 is rotatably connected to the seat frame A1, and the other end is hingedly connected to the lower linkage plate 52. The end of the lower linkage plate 52 away from the upper linkage plate 51 is rotatably connected to the base A2. The end of the transmission arm 3 away from the armrest support 4 is fixedly connected to the lower linkage plate 52, and the driving mechanism can drive the lower linkage plate 52 to rotate relative to the base A2.

[0030] Based on this, referring to Figure 4 and 5 , the armrest support 4, the transmission arm 3, and the lower linkage plate 52 form a four-bar linkage mechanism, and the base A2 and the first linkage 2. During the process of converting the seat from a sitting position to a zero-gravity state, the driving mechanism drives the lower linkage plate 52 to rotate upward, and the forward end of the lower linkage plate 52 moves upward to drive the rear end of the upper linkage plate 51 to lift upward, thereby realizing the upward rotation of the front part of the seat frame A1. Therefore, by fixing the transmission arm 3 and the lower linkage plate 52 or designing them as a whole, without adding an additional driving source, the lower linkage plate 52 can be rotated upward, and the armrest support 4 can be moved backward and upward relative to the base A2.

[0031] As shown in Figure 1 and 2 , in this embodiment, the lower linkage plate 52 is rotatably installed on both sides of the seat frame A1 in the width direction through the angle adjuster c. The driving mechanism includes a motor 61 and a synchronous rod 62 driven to rotate by the motor 61, and the two ends of the synchronous rod 62 are in transmission connection with the angle adjuster c. The motor 61 drives the synchronous rod 62 to rotate, which can drive the lower linkage plates 52 on both sides to rotate relative to the base A2.

[0032] Please refer to Figure 2The lower end of the transmission arm 3 is fixed to the outer side of the lower linkage plate 52 through the transition support 8. In this way, the handrail support 4 can be installed outwardly and translationally, which increases the distance between the two groups of handrail supports 4 and ensures the space of the seat part of the seat.

[0033] As shown in Figure 4 , the front lower side of the handrail support 4 is provided with a cantilever 41 extending towards the base A2 for facilitating the installation of the handrail support 4 and ensuring the feasibility of the connection between the handrail support 4 and the base A2. The end of the transmission arm 3 away from the base A2 is hingedly connected to the end of the cantilever 41.

[0034] Further referring to Figure 4 , the seat part support assembly A is provided with a transition frame 1 extending upwardly at the position corresponding to the handrail support 4. In this embodiment, the transition frame 1 is fixed to the base A2, and the upper end of the transition frame 1 is located inside the corresponding handrail support 4. As shown in Figure 3 , the handrail support 4 is provided with an arc-shaped slot 4a, and the transition frame 1 is provided with a guide pillar a slidingly supported in the arc-shaped slot 4a. In this embodiment, the arc-shaped slot 4a is inclined. Through the transition frame 1, the guide pillar a and the arc-shaped slot 4a, the rotation angle and the movement range of the handrail support 4 can be limited when the lower linkage plate 52 rotates, and the shaking amount of the handrail support 4 in the Y direction can also be limited, that is, the left and right shaking of the handrail support 4 can be limited, which improves the stability of the seat handrail.

[0035] Further, as shown in Figure 4 , the transition frame 1 is provided with a transition plate 1b at the lower part for facilitating the installation. The end of the first connecting rod 2 away from the handrail support 4 is hingedly connected to the rear end of the transition plate 1b.

[0036] 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 the claims of the present application. Such modifications fall within the protection scope of the present application.

Claims

1. An automobile seat with adjustable angle of armrest support, comprising a seat body having a seat support assembly (A) and armrest supports (4) arranged on both sides of the seat support assembly (A), characterized in that: The first connecting rod (2) is rotatably connected at both ends to the armrest support (4) and the rear part of the seat support assembly (A), and the transmission arm (3) is rotatably connected at both ends to the armrest support (4) and the front part of the seat support assembly (A), and the armrest support (4), the first connecting rod (2), the seat support assembly (A) and the transmission arm (3) form a four-bar linkage mechanism. The drive mechanism is used for driving the four-bar linkage mechanism to move. The seat support assembly (A) comprises a base (A2) and a seat frame (A1) above the base (A2), the rear end of the seat frame (A1) is rotatably connected to the base (A2), and the front end of the seat frame (A1) is rotatably connected to the base (A2) and is provided with an upper linkage piece (51) and a lower linkage piece (52), one end of the upper linkage piece (51) is rotatably connected to the seat frame (A1), the other end of the upper linkage piece (51) is hingedly connected to the lower linkage piece (52), and the end of the lower linkage piece (52) away from the upper linkage piece (51) is rotatably connected to the base (A2). The end of the transmission arm (3) away from the armrest support (4) is fixedly connected to the lower linkage piece (52), and the drive mechanism is used for driving the lower linkage piece (52) to rotate relative to the base (A2).

2. The armrest angle-adjustable automotive seat according to claim 1, characterized by: The automobile seat is a zero-gravity seat.

3. The armrest angle-adjustable automotive seat according to claim 2, characterized in that: The rear end of the seat frame (A1) is rotatably connected to a backrest (9).

4. The armrest support angle adjustable automotive seat of claim 2, wherein: The lower end of the transmission arm (3) is fixedly connected to the outside of the lower linkage piece (52) through a transition support (8).

5. The armrest angle adjustable car seat according to claim 2, wherein: The front lower side of the armrest support (4) is provided with a cantilever (41) extending towards the base (A2), and the end of the transmission arm (3) away from the base (A2) is hingedly connected to the end of the cantilever (41).

6. The armrest support angle adjustable automotive seat of claim 2, wherein: The lower linkage piece (52) is rotatably installed on both sides of the seat frame (A1) through an angle adjuster (c), and the drive mechanism comprises a motor (61) and a synchronous rod (62) driven to rotate by the motor (61), and both ends of the synchronous rod (62) are in transmission connection with the angle adjuster (c).

7. The armrest angle adjustable car seat of claim 1, wherein: The seat support assembly (A) is fixedly provided with a transition frame (1) extending upwards, the armrest support (4) is provided with an arc-shaped groove (4a), the transition frame (1) is provided with a guide support (a) at the upper end, and the guide support (a) is slidingly supported in the arc-shaped groove (4a).

8. The armrest angle-adjustable automotive seat according to claim 7, characterized by: The transition frame (1) is fixedly provided with a transition plate (1b) at the lower part, and the end of the first connecting rod (2) away from the armrest support (4) is hingedly connected to the transition plate (1b).

9. The armrest angle adjustable car seat of claim 7, wherein: The arc-shaped groove (4a) is inclined.

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