Automobile seat with adjustable armrest supporting angle

Abstract

The invention discloses an automobile seat with an adjustable armrest supporting angle, which comprises a seat body, the seat body is provided with a seat supporting assembly and armrest supports arranged on two sides of the seat supporting assembly, and a first connecting rod and a transmission arm are arranged between the armrest supports and the seat supporting assembly. The two ends of the first connecting rod are rotationally connected to the rear portions of the armrest support and the seat supporting assembly respectively, the two ends of the transmission arm are rotationally connected to the front portions of the armrest support and the seat supporting assembly respectively, and the armrest support, the first connecting rod, the seat supporting assembly and the transmission arm form a four-bar mechanism. And the driving mechanism is used for driving the four-connecting-rod mechanism to move. The armrest support has the beneficial effects that the four-connecting-rod mechanism can be driven to move through the driving mechanism, the supporting angle of the armrest support is adjusted, and it is guaranteed that the elbows of a user can be comfortably supported in different postures.

Description

Technical Field

[0001] The invention relates to the technical field of automobile seats, and in particular to an automobile seat with adjustable armrest support angles. Background Art

[0002] In order to meet the riding comfort of users, many luxury medium and large MVPs and SUVs are usually equipped with floor-standing armrests on the middle row seats. When the seats are in the sitting position, the armrests can provide elbow support for the middle row passengers and increase riding comfort. Even in high-end models, the armrests may also integrate control systems, and the entertainment system, air conditioning and other equipment in the car can be controlled through the touch screen or buttons on the armrests.

[0003] However, floor-standing armrests are usually fixed on the floor of the vehicle. When the seat posture changes, the support angle and position of the armrest do not change. When the seat is transformed from a sitting position to a lying position, the position and angle of the person's elbows change significantly, especially for seats with zero gravity function. When the seat is transformed from a sitting position to a zero gravity state, the front end of the seat frame is lifted upward and the backrest tilts backward. The passenger will be in a suspended state, and the passenger's arms will move backward and upward. Therefore, the design of the fixed armrest is not ergonomic, and cannot provide comfortable support and convenient control for the passenger's elbows. Summary of the invention

[0004] In view of this, the present invention provides a car seat with an armrest supporting angle adjustable, which can adjust the supporting angle of the armrest.

[0005] To achieve the above purpose, the technical solution of the present invention is as follows:

[0006] A car seat with adjustable armrest support angle, comprising a seat body, the seat body having a seat support assembly and armrest brackets arranged on both sides of the seat support assembly, the key of which is that a first connecting rod and a transmission arm are arranged between the armrest bracket and the seat support assembly, the two ends of the first connecting rod are respectively rotatably connected to the armrest bracket and the rear part of the seat support assembly, the two ends of the transmission arm are respectively rotatably connected to the armrest bracket and the front part of the seat support assembly, and the armrest bracket, the first connecting rod, the seat support assembly and the transmission arm constitute a four-bar linkage;

[0007] It also includes a driving mechanism, which is used to drive the four-bar linkage mechanism to move.

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

[0009] Preferably, the car seat is a zero-gravity seat, the seat support assembly comprises a base and a seat frame located above the base, the rear end of the seat frame is rotatably connected to the base, an upper linkage piece and a lower linkage piece are arranged between the front end and the base, one end of the upper linkage piece is rotatably connected to the seat frame, and the other end is hinged to the lower linkage piece, and one end of the lower linkage piece away from the upper linkage piece is rotatably connected to the base;

[0010] The end of the transmission arm away from the armrest bracket is fixedly connected to the lower linkage piece, and the driving mechanism is used to drive the lower linkage piece to rotate relative to the base. With the above structure, by fixing the transmission arm to the lower linkage piece, there is no need to add an additional driving source. During the upward rotation of the lower linkage piece, the armrest bracket can be linked to move backward relative to the base and rotate upward.

[0011] Preferably, the rear end of the seat frame is rotatably connected to a backrest.

[0012] As a preferred embodiment, the lower end of the transmission arm is fixedly connected to the outer side of the lower linkage plate through a transition bracket. With the above structure, the armrest bracket can be installed outwardly in a translational manner, thereby increasing the distance between the two groups of armrest brackets and ensuring the seat space of the chair.

[0013] Preferably, a cantilever extending toward the base is provided at the lower front side of the handrail support, and one end of the transmission arm away from the base is hinged to the end of the cantilever. The above structure is adopted to facilitate connection.

[0014] Preferably, the lower linkage plates are rotatably mounted on both sides of the seat frame through an angle adjuster, the driving mechanism comprises a motor and a synchronization rod driven to rotate by the motor, and both ends of the synchronization rod are transmission-connected with the angle adjuster.

[0015] As a preferred embodiment: the seat support assembly is fixed with a transition frame extending upward, the handrail support is provided with an arc groove, the upper end of the transition frame is provided with a guide pillar, and the guide pillar is slidably supported in the arc groove.

[0016] Preferably, an adapter plate is fixedly arranged at the lower part of the transition frame, and the end of the first connecting rod away from the handrail bracket is hinged to the adapter plate. The above structure can limit the shaking amount of the handrail bracket in the Y direction and improve the stability of the handrail bracket.

[0017] Preferably, the arc-shaped groove is arranged obliquely.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. In the automobile 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 to move by the driving mechanism to 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 a zero-gravity adjustment motor without adding an additional drive source. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic 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 when in use. DETAILED DESCRIPTION

[0026] The present invention is further described below in conjunction with embodiments and drawings.

[0027] like Figure 1 and Figure 4 As shown, a car seat with adjustable armrest support angle includes a seat body and a driving mechanism, wherein the seat body has a seat support assembly A and armrest brackets 4 arranged on both sides of the seat support assembly A in the 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, wherein the two ends of the first connecting rod 2 are respectively rotatably connected to the armrest bracket 4 and the rear part of the seat support assembly A, and the two ends of the transmission arm 3 are respectively rotatably connected to the armrest bracket 4 and the front part of the seat support assembly A, and the armrest bracket 4, the first connecting rod 2, the seat support assembly A and the transmission arm 3 constitute a four-bar linkage. The driving mechanism can drive the four-bar linkage to move.

[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 posture of the seat body changes, the four-bar linkage can be driven by the driving mechanism to move, and the support angle of the armrest bracket 4 can be adjusted to ensure that the user's elbows can be comfortably supported in different sitting postures. At the same time, the touch screen or buttons on the armrest can be easily controlled in the lying state. The different postures described in this paragraph mainly refer to the backrest being adjusted to a tilted state alone. Of course, it can also refer to a zero-gravity state in which both the backrest and the seat cushion are tilted. The following is a further explanation using the application of armrests in zero-gravity chairs as an example.

[0029] like Figure 1 and 4 As shown, the car seat is a zero-gravity seat, and the seat support assembly A includes a base A2 for installation on the floor of the car, 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. Figure 2 As shown, an upper linkage piece 51 and a lower linkage piece 52 are provided between the front end of the seat frame A1 and the base A2, wherein one end of the upper linkage piece 51 is rotatably connected to the seat frame A1, and the other end is hinged 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 bracket 4 is fixedly connected to the lower linkage piece 52, and the driving mechanism can drive the lower linkage piece 52 to rotate relative to the base A2.

[0030] Based on this, refer to Figure 4 and 5 The armrest bracket 4, the transmission arm 3 and the lower linkage piece 52, the base A2 and the first link 2 form a four-bar mechanism. During the process of the seat being converted from a sitting state to a zero gravity state, the driving mechanism drives the lower linkage piece 52 to rotate upward, and the front end of the lower linkage piece 52 moves upward to drive the rear end of the upper linkage piece 51 to lift upward, thereby realizing the upward rotation of the front part of the seat frame A1. Therefore, by keeping the transmission arm 3 and the lower linkage piece 52 fixedly connected or designed as a whole, there is no need to add an additional driving source. During the upward rotation of the lower linkage piece 52, the armrest bracket 4 can be linked to move backward and rotate upward relative to the base A2.

[0031] Depend on Figure 1 and 2 It can be seen that in this embodiment, both sides of the seat frame A1 in the width direction are rotatably mounted with lower linkage pieces 52 through the angle adjuster c, and the driving mechanism includes a motor 61 and a synchronization rod 62 driven to rotate by the motor 61, and both ends of the synchronization rod 62 are connected to the angle adjuster c. The motor 61 drives the synchronization rod 62 to rotate, which can drive the lower linkage pieces 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 fixedly connected to the outer side of the lower linkage plate 52 through the transition bracket 8. With this design, the armrest bracket 4 can be installed outwardly, thereby increasing the distance between the two groups of armrest brackets 4 and ensuring the seat space of the chair.

[0033] like Figure 4 As shown, in order to facilitate the installation of the armrest bracket 4 and ensure the feasibility of connecting the armrest bracket 4 with the base A2, a cantilever 41 extending toward the base A2 is provided on the lower front side of the armrest bracket 4, and the end of the transmission arm 3 away from the base A2 is hinged to the end of the cantilever 41.

[0034] Re-attend Figure 4 , the position of the seat support assembly A corresponding to the armrest bracket 4 is fixed with a transition frame 1 extending upward. In this embodiment, the transition frame 1 is fixed on the base A2, and the upper end of the transition frame 1 is located on the inner side of the corresponding armrest bracket 4. Figure 3 As shown, the armrest bracket 4 is provided with an arc groove 4a, and the upper end of the transition frame 1 is provided with a guide pillar a, and the guide pillar a is slidably supported in the arc groove 4a. In this embodiment, the arc groove 4a is inclined. By providing the transition frame 1, the guide pillar a and the arc groove 4a, when the lower linkage piece 52 rotates, the rotation angle and the movement range of the armrest bracket 4 can be limited. At the same time, the shaking amount of the armrest bracket 4 in the Y direction can also be limited, that is, the left and right shaking of the armrest bracket 4 is limited, thereby improving the stability of the seat armrest.

[0035] Further, such as Figure 4 As shown, for easy installation, an adapter plate 1b is fixedly provided at the lower part of the transition frame 1, and one end of the first connecting rod 2 away from the handrail bracket 4 is hinged to the rear end of the adapter plate 1b.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present invention. Under the guidance of the present invention, ordinary technicians in this field can make various similar expressions without violating the purpose and claims of the present invention, and such changes all fall within the scope of protection of the present invention.

Claims

1. A car seat with adjustable armrest support angle, comprising a seat body, wherein the seat body has a seat support assembly (A) and armrest brackets (4) arranged on both sides of the seat support assembly (A), characterized in that: A first connecting rod (2) and a transmission arm (3) are provided between the armrest bracket (4) and the seat support assembly (A); two ends of the first connecting rod (2) are rotatably connected to the armrest bracket (4) and the rear part of the seat support assembly (A); two ends of the transmission arm (3) are rotatably connected to the armrest bracket (4) and the front part of the seat support assembly (A); the armrest bracket (4), the first connecting rod (2), the seat support assembly (A) and the transmission arm (3) form a four-bar linkage; It also includes a driving mechanism, which is used to drive the four-bar linkage mechanism to move.

2. The car seat with adjustable armrest support angle according to claim 1, characterized in that: The automobile seat is a zero-gravity seat, wherein the seat support assembly (A) comprises a base (A2) 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); an upper linkage piece (51) and a lower linkage piece (52) are provided between the front end and the base (A2); one end of the upper linkage piece (51) is rotatably connected to the seat frame (A1), and the other end is hinged to the lower linkage piece (52); and one end of the lower linkage piece (52) away from the upper linkage piece (51) is rotatably connected to the base (A2); One end of the transmission arm (3) away from the handrail bracket (4) is fixedly connected to the lower linkage plate (52), and the driving mechanism is used to drive the lower linkage plate (52) to rotate relative to the base (A2).

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

4. The car seat with adjustable armrest support angle according to claim 2, characterized in that: The lower end of the transmission arm (3) is fixedly connected to the outer side of the lower linkage plate (52) via a transition bracket (8).

5. The car seat with adjustable armrest support angle according to claim 2, characterized in that: A cantilever (41) extending toward the base (A2) is provided on the lower front side of the handrail bracket (4), and one end of the transmission arm (3) away from the base (A2) is hinged to the end of the cantilever (41).

6. The car seat with adjustable armrest support angle according to claim 2, characterized in that: The lower linkage plates (52) are rotatably mounted on both sides of the seat frame (A1) through an angle adjuster (c); the driving mechanism comprises a motor (61) and a synchronization rod (62) driven to rotate by the motor (61); and both ends of the synchronization rod (62) are transmission-connected with the angle adjuster (c).

7. The car seat with adjustable armrest support angle according to claim 1, characterized in that: The seat support assembly (A) is fixedly provided with a transition frame (1) extending upward, the handrail support (4) is provided with an arc groove (4a), and a guide pillar (a) is provided at the upper end of the transition frame (1), and the guide pillar (a) is slidably supported in the arc groove (4a).

8. The automobile seat with adjustable armrest support angle according to claim 7, characterized in that: An adapter plate (1b) is fixedly provided at the lower part of the transition frame (1), and one end of the first connecting rod (2) away from the handrail bracket (4) is hinged to the adapter plate (1b).

9. The automobile seat with adjustable armrest support angle according to claim 7, characterized in that: The arc-shaped groove (4a) is arranged obliquely.

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