Electric single-arm armrest of seat

Abstract

The utility model discloses a seat electric single-arm armrest which comprises a seat framework and an armrest support, a motor is installed on the side, away from the armrest support, of the seat framework, and an armrest mechanism part is installed between the seat framework and the armrest support. The armrest mechanism part comprises a core rotating part, a rotating disc and a connecting ring part for connecting the core rotating part with the rotating disc; an output synchronous rod of the motor penetrates through the seat framework to be fixed to the core rotating part, the armrest support is fixed to the rotating disc through a rotating shaft, the axis of the output synchronous rod coincides with the axis of the rotating shaft, and an armrest mechanism part is further arranged outside the core rotating part. The electric handrail mechanism has the advantages of being simple in structure, stable, mature, convenient to use and low in manufacturing cost, the motor drives the synchronous rod to rotate, the handrail mechanism part is further driven to operate, the speed of the motor can be reduced, then the rotating shaft is driven to rotate, electric handrail movement is achieved, and Y-direction shaking in the movement process of the handrail mechanism part can be eliminated.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat armrest technology, specifically to an electric single-arm armrest for a seat. Background Technology

[0002] Car seat armrests provide elbow support for rear passengers, especially on long journeys, effectively reducing lumbar pressure and making the ride more comfortable. They can also offer some safety in certain situations. For example, in an emergency, the armrest can act as a support point for passengers, helping them maintain balance or hold their position.

[0003] Currently, most car seat armrests are manually adjustable, which is inconvenient. Furthermore, manually adjustable armrests cannot maintain a comfortable position when the backrest is tilted at a large angle. Electric adjustable armrests were designed based on manually adjustable armrests. They are easier and more convenient to operate, have a welcoming function, and bring a better sense of technology. However, electric adjustable armrests are not stable enough. They have the disadvantage of wobbling in the Y direction during use and are not easy to control. Their structure is not mature enough and can easily lead to a poor user experience for passengers. Summary of the Invention

[0004] To solve the above technical problems, this utility model provides a stable electric single-arm armrest for a seat.

[0005] The technical solution is as follows: an electric single-arm armrest for a seat, including a seat frame and an armrest bracket, wherein a motor is installed on the side of the seat frame away from the armrest bracket, and the key point is that an armrest component is installed between the seat frame and the armrest bracket, the armrest component including a core rotating component, a rotating disk and a connecting ring connecting the core rotating component and the rotating disk;

[0006] The motor's output synchronizing rod passes through the seat frame and is fixed to the core rotating component. The armrest bracket is fixed to the rotating disk via a rotating shaft, with the centerlines of the output synchronizing rod and the rotating shaft coinciding. This structure is simple and mature. The motor drives the armrest component via the synchronizing rod. The core component of the armrest component reduces the motor's speed, causing the rotating shaft to rotate, which in turn rotates the connecting ring, further rotating the rotating disk. This, in turn, causes the armrest bracket connected via the rotating shaft to automatically flip. The operation is simple and convenient, saves manpower, and improves the user experience for passengers.

[0007] Preferably, the armrest component further includes a fixing sheet metal part, which is fixedly disposed on the side of the seat frame away from the motor. Two limiting plates are mounted on the fixing sheet metal part, and a limiting structure protruding outwards is provided at one point of the connecting ring, extending between the two limiting plates. With this structure, the fixing sheet metal part enables the connection between the armrest component and the seat frame, ensuring the normal rotation of the core rotating component. The limiting plates restrict the rotation angle of the welded sheet metal part, thereby limiting the rotation angle of the seat armrest connected to it and preventing excessive rotation of the seat armrest.

[0008] Preferably, a mechanism support is provided between the two limiting plates. The mechanism support has an arc-shaped structure, is located on the rear side of the core rotating component, and is fixed to the fixed sheet metal component. Both ends of the mechanism support are close to the two limiting plates. With this structure, the mechanism support is correspondingly arranged on the outside of the core component, and it can eliminate Y-axis swaying during the movement of the handheld component, thus improving stability.

[0009] Preferably, a core component cover is fixedly connected to the fixed sheet metal part, and the core rotating component, connecting ring, rotating disk, limiting plate, and mechanism support are all located inside the core component cover. With this structure, the core component cover can prevent foam from falling into the handrail component and affecting its movement.

[0010] Preferably, a limiting ring is provided on the end of the synchronizing rod near the motor, with one side of the limiting ring abutting against the edge of the motor's output through-hole. This structure ensures an effective connection between the synchronizing rod and the motor, preventing the synchronizing rod from detaching from the motor and thus ensuring the automatic rotation of the handrail.

[0011] Preferably, a connector is provided at the gap between the motor and the seat frame, and a pin is provided on the connector. The pin passes through the mounting hole on the motor and the connector in sequence to connect with the seat frame. This structure securely fixes the motor to the seat frame, preventing the motor from falling off during use.

[0012] Preferably, one end of the rotating shaft is fixedly connected to the rotating disk, and the other end of the rotating shaft has a square shaft structure with a hollow interior. The handrail bracket has a square hole corresponding to the square shaft end of the rotating shaft, and the square shaft end extends into the square hole. With this structure, the rotating shaft can rotate with the rotating disk, and the square shaft end of the rotating shaft is connected to the square hole, resulting in a high degree of connection tightness.

[0013] Preferably, a fixing screw is provided at the end of the handrail bracket away from the rotating shaft. One end of the fixing screw extends into the square hole and passes through the square shaft end of the rotating shaft for fixed connection. With this structure, the fixing screw extends into the square hole and connects to the square shaft end, further ensuring the tightness between the shaft and the handrail bracket and preventing detachment.

[0014] Compared with the prior art, the beneficial effects of this utility model are: simple and stable structure, convenient to use and low manufacturing cost. The motor drives the synchronous rod to rotate, which in turn drives the handrail component to run. The handrail component can reduce the speed of the motor, thereby driving the rotating shaft to rotate and realizing the electric handrail movement. It can effectively eliminate the Y-axis sway in the movement of the handrail component, bringing a better experience and effect to the user. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the folding mechanism of this utility model;

[0016] Figure 2 for Figure 1 Another perspective illustration;

[0017] Figure 3 A structural schematic diagram of component 3 of the handrail;

[0018] Figure 4 Exploded view of the inner side of component 3 of the handheld device;

[0019] Figure 5 Exploded view of the outer side of component 3 of the handheld device;

[0020] Figure 6 for Figure 1 A schematic diagram showing the limiting position of the handrail component 3;

[0021] Figure 7 This is a schematic diagram of the unfolded state of this utility model;

[0022] Figure 8 for Figure 7 A schematic diagram of the limiting position of the handrail component 3. Detailed Implementation

[0023] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0024] like Figure 1 , Figure 2 and Figure 3As shown, an electric single-arm armrest for a seat includes a seat frame 1 and an armrest bracket 5. A motor 2 is installed on the side of the seat frame 1 away from the armrest bracket 5. An armrest component 3 is installed between the seat frame 1 and the armrest bracket 5. The armrest component 3 includes a core rotating part 3a, a rotating disk 3b, and a connecting ring 3c that connects the core rotating part 3a and the rotating disk 3b.

[0025] The output synchronizing rod 4 of motor 2 passes through the seat frame 1 and is fixed to the core rotating component 3a. The armrest bracket 5 is fixed to the rotating disk 3b via the rotating shaft 6. The axis of the output synchronizing rod 4 and the rotating shaft 6 coincide. A seat cover 10 is also provided between the armrest bracket 5 and the armrest component 3. The seat cover 10 has a through hole corresponding to the rotating shaft 6. The armrest component 3 is surrounded between the seat frame 1 and the seat cover 10. When in use, pressing the switch on the seat starts motor 2, which drives the armrest component 3 through the synchronizing rod 4. The core component 3a of the armrest component 3 can reduce the speed of motor 2, thereby driving the rotating shaft 6 to rotate, realizing the movement of the electric armrest. It can switch from a folded state to an unfolded state or vice versa, making it convenient for passengers in the vehicle to use.

[0026] like Figure 3 , Figure 4 and Figure 6 As shown, the armrest component 3 also includes a fixed sheet metal part 3d, which is fixed to the seat frame 1. The core rotating component 3a has a protruding ring on the side away from the seat frame 1, and the connecting ring 3c has a circular hole corresponding to the protruding ring. The core rotating component 3a can be inserted into the circular hole and connected to the connecting ring 3c. The connecting ring 3c can move together with the core rotating component 3a.

[0027] Two strip holes are provided on the fixed sheet metal part 3d, and a limiting piece 3d1 is installed in each of the two strip holes. The connecting ring part 3c is provided with an outwardly protruding limiting structure 3c1. The limiting structure 3c1 is located between the two limiting pieces 3d1 and can control the maximum rotation angle of the handrail.

[0028] The core rotating component 3a, the fixed sheet metal component 3d, and the connecting ring component 3c all have through holes in their middle parts. The synchronizing rod 4 can extend into the fixed sheet metal component 3b and the core rotating component 3a in sequence, and pass through the connecting ring component 3c. When the motor 2 drives the synchronizing rod 4 to rotate, it can drive the core rotating component 3a and the connecting ring component 3c to move together, and further drive the rotating disk 3b connected to the connecting ring component 3c to rotate, so that the rotating shaft 6 can rotate together.

[0029] A mechanism support 7 is provided between the two limiting plates 3d1. The mechanism support 7 has an arc-shaped structure. The mechanism support 7 is located on the rear side of the core rotating part 3a and is fixed on the fixed sheet metal part 3d. The two ends of the mechanism support 7 are close to the two limiting plates 3d1 respectively, which can eliminate the Y-direction swaying in the movement of the hand-held component 3 and improve the stability of the mechanism.

[0030] A core component cover 8 is fixedly connected to the fixed sheet metal part 3d. The core rotating part 3a, the connecting ring part 3c, the rotating disk 3b, the limiting piece 3d1, and the mechanism support part 7 are all located inside the core component cover 8, which can effectively prevent the foam from falling into the handrail component and affecting the movement.

[0031] like Figure 4 As shown, a limiting ring 4a is provided on one end of the synchronizing rod 4 near the motor 2. One side of the limiting ring 4a abuts against the edge of the output through hole of the motor 2 to prevent it from falling off during use. The armrest component 3 has a through hole corresponding to the synchronizing rod 4. The synchronizing rod 4 can be connected to the armrest component 3 to realize the rotation of the seat armrest 5.

[0032] A connector 9 is provided at the gap between the motor 2 and the seat frame 1. A pin 9a is provided on the connector 9. The pin 9a passes through the mounting hole on the motor 2 and the connector 9 in sequence and connects to the seat frame 1 to ensure the tightness of the connection.

[0033] like Figure 5 and Figure 8 As shown, one end of the rotating shaft 6 is fixedly connected to the rotating disk 3b. The other end of the rotating shaft 6 has a square shaft structure with a hollow interior. The handrail bracket 5 is provided with a bushing corresponding to the square shaft end of the rotating shaft 6. The bushing has a square hole in the middle, and the square shaft end extends into the square hole, ensuring a tight connection and preventing loosening. It is also simple, convenient, and easy to install, providing high load-bearing capacity. A fixing screw 11 is provided at the end of the handrail bracket 5 away from the rotating shaft 6. One end of the fixing screw 11 extends into the square hole and passes through the square shaft end of the rotating shaft 6 for fixed connection, further ensuring the connection's strength. A handrail shell 12 is also provided outside the handrail bracket 5 and the fixing screw 11 for convenient use by passengers inside the vehicle.

[0034] like Figure 1 and Figure 6 As shown, the electric single-arm armrest of the seat is in a folded state, and the connecting ring 3c inside the armrest component 3 abuts against the limiting piece 3d1 fixed to the lower end of the fixed sheet metal part 3d. Figure 7 and Figure 8As shown, the electric single armrest of the seat is in the unfolded state, and the passenger can place his arm on the seat armrest 5. The connecting ring 3c inside the armrest component 3 abuts against the limiting piece 3d1 fixed at the upper end of the fixed sheet metal part 3d. The connecting ring 3c can realize the folding or unfolding of the electric single armrest of the seat by rotating the two limiting pieces 3d1.

[0035] Finally, it should be noted that the above description is merely a preferred embodiment of the present utility model. Those skilled in the art, under the guidance of the present utility model, can make various similar representations without departing from the spirit and claims of the present utility model, and such modifications all fall within the protection scope of the present utility model.

Claims

1. A power-operated single-arm armrest for a seat, comprising a seat frame (1) and an armrest bracket (5), wherein a motor (2) is mounted on the side of the seat frame (1) away from the armrest bracket (5), characterized in that: An armrest component (3) is installed between the seat frame (1) and the armrest bracket (5). The armrest component (3) includes a core rotating component (3a), a rotating disk (3b), and a connecting ring (3c) that connects the core rotating component (3a) and the rotating disk (3b). The output synchronizing rod (4) of the motor (2) passes through the seat frame (1) and is fixed to the core rotating part (3a). The armrest bracket (5) is fixed to the rotating disk (3b) through the rotating shaft (6). The center lines of the output synchronizing rod (4) and the rotating shaft (6) coincide.

2. The electric single-arm armrest for a seat according to claim 1, characterized in that: The armrest component (3) also includes a fixed sheet metal part (3d), which is fixedly disposed on the side of the seat frame (1) away from the motor (2). Two limiting pieces (3d1) are installed on the fixed sheet metal part (3d). A limiting structure (3c1) protruding outward is provided at one point of the connecting ring (3c), and the limiting structure (3c1) extends between the two limiting pieces (3d1).

3. The electric single-arm armrest for a seat according to claim 2, characterized in that: A mechanism support (7) is provided between the two limiting pieces (3d1). The mechanism support (7) has an arc-shaped structure. The mechanism support (7) is located on the rear side of the core rotating part (3a) and is fixed on the fixed sheet metal part (3d). The two ends of the mechanism support (7) are close to the two limiting pieces (3d1).

4. The electric single-arm armrest for a seat according to claim 3, characterized in that: A core component cover (8) is fixedly connected to the fixed sheet metal part (3d). The core rotating part (3a), the connecting ring part (3c), the rotating disk (3b), the limiting piece (3d1), and the mechanism support part (7) are all located inside the core component cover (8).

5. The electric single-arm armrest for a seat according to claim 1, characterized in that: A limiting ring (4a) is provided on one end of the synchronizing rod (4) near the motor (2), and one side of the limiting ring (4a) abuts against the edge of the output through hole of the motor (2).

6. The electric single-arm armrest for a seat according to claim 5, characterized in that: A connector (9) is provided at the gap between the motor (2) and the seat frame (1). A pin (9a) is provided on the connector (9). The pin (9a) passes through the mounting hole on the motor (2) and the connector (9) in sequence to connect with the seat frame (1).

7. The electric single-arm armrest for a seat according to claim 1, characterized in that: One end of the rotating shaft (6) is fixedly connected to the rotating disk (3b). The shaft at the other end of the rotating shaft (6) has a square structure and the inside of the square shaft end is hollow. The handrail bracket (5) has a square hole corresponding to the square shaft end of the rotating shaft (6) and the square shaft end extends into the square hole.

8. The electric single-arm armrest for a seat according to claim 7, characterized in that: A fixing screw (11) is provided at one end of the handrail bracket (5) away from the rotating shaft (6). One end of the fixing screw (11) extends into the square hole and passes through the square shaft end of the rotating shaft (6) for fixed connection.

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