Electric adjusting movable armrest mechanism, seat and backrest framework

Abstract

The utility model discloses an electric adjusting movable armrest mechanism which comprises an armrest, a first angle adjuster and a first angle adjuster motor, the first angle adjuster and the first angle adjuster motor are fixedly installed on a backrest framework, the input end of the first angle adjuster is in transmission connection with the first angle adjuster motor, and the output end of the first angle adjuster is in transmission connection with the armrest. The utility model further discloses a seat backrest framework, the seat backrest framework comprises a seat back framework, the seat back framework comprises two side plates which are oppositely arranged, and one side plate or two side plates are provided with the electric adjusting movable armrest mechanism. And the first angle adjuster and the first angle adjuster motor are fixedly mounted on the corresponding side plates respectively. The utility model further discloses a seat which comprises the seat backrest framework. According to the electrically-adjusted movable armrest mechanism, the seat and the backrest framework, the armrest can be adjusted to be fixed and supported at any angle state and position.

Description

Technical Field

[0001] This utility model belongs to the field of seating technology, specifically an electrically adjustable armrest mechanism and a seat and backrest frame. Background Technology

[0002] Armrests, as an important component of seats, not only improve ergonomic support but also enhance seating comfort. Currently, armrests in seats generally fall into two categories: fixed armrests and movable armrests. As the name suggests, fixed armrests are attached to the seat back or cushion, and their support angle is not adjustable. When the occupant's posture changes, the armrest may fail to provide adequate support, resulting in insufficient comfort. Movable armrests, on the other hand, allow for angle adjustment. For example, Chinese utility model patent CN207772955U discloses a movable armrest for a vehicle seat. While this movable armrest can be adjusted, it only has two positions: horizontal and vertical, failing to achieve support at any arbitrary angle. Summary of the Invention

[0003] In view of this, the purpose of this utility model is to provide an electrically adjustable armrest mechanism and a seat and backrest frame that can adjust the armrest to any angle and position to achieve fixed support.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] This utility model first proposes an electrically adjustable movable armrest mechanism, including an armrest and a first angle adjuster and a first angle adjuster motor fixedly installed on the backrest frame. The input end of the first angle adjuster is drivenly connected to the first angle adjuster motor, and the output end of the first angle adjuster is drivenly connected to the armrest.

[0006] Furthermore, a first connecting pipe is installed at the output end of the first angle adjuster, and a second connecting pipe is installed on the armrest. An alignment structure for defining the installation position of the armrest is provided between the first connecting pipe and the second connecting pipe.

[0007] Furthermore, the alignment structure includes an alignment groove disposed on the first connecting pipe, and an alignment protrusion disposed on the second connecting pipe that mates with the alignment groove; both the alignment groove and the alignment protrusion are configured as trapezoidal structures.

[0008] Furthermore, a limiting structure for limiting the rotation angle position of the armrest is provided between the first angle adjuster and the backrest frame.

[0009] Furthermore, the limiting structure includes a limiting baffle installed at the output end of the first angle adjuster and a limiting shaft installed on the backrest frame that cooperates with the limiting baffle.

[0010] This utility model also proposes a seat back frame, including a seat back frame, the seat back frame including two side plates arranged opposite each other, one or both side plates are equipped with the electric adjustable armrest mechanism as described above, and the first angle adjuster and the first angle adjuster motor are respectively fixedly installed on the corresponding side plates.

[0011] Furthermore, the electric adjustable handrail mechanism is installed on each of the two side plates; a first drive shaft is provided between the two first angle adjusters, and the first angle adjuster motor is set as one and connected to the first drive shaft for transmission.

[0012] Furthermore, a top connector is provided between the tops of the two side plates, and a headrest mounting bracket for installing a headrest is provided on the top connector; a middle reinforcing crossbar and a bottom reinforcing crossbar are respectively provided in the middle and bottom of the two side plates.

[0013] Furthermore, it also includes a turntable assembly, which includes two turntable lower plates disposed opposite to each other;

[0014] The lower plate of the angle adjuster is provided in a one-to-one correspondence with the side plate, and a second angle adjuster is provided between the lower plate of the angle adjuster and the side plate. A second drive shaft is provided between the two second angle adjusters, and a second angle adjuster motor for driving the second drive shaft to rotate is provided on the chair back frame.

[0015] This utility model also proposes a seat, including the seat back frame as described above.

[0016] The beneficial effects of this utility model are as follows:

[0017] The seat back frame of this utility model has an electrically adjustable armrest mechanism installed on the side plate. In this way, the armrest angle can be adjusted by using a first angle adjuster motor and a first angle adjuster, and the armrest can be fixed at any angle. Thus, even if the passenger changes the sitting posture, the armrest can be fixed at a certain angle position by adjusting it, which can provide better support and improve comfort. Attached Figure Description

[0018] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the following drawings are provided for illustration:

[0019] Figure 1 This is a structural schematic diagram of an embodiment of the seat back frame of this utility model;

[0020] Figure 2 for Figure 1 Left-axis projection;

[0021] Figure 3 for Figure 2 Enlarged view of region A;

[0022] Figure 4 for Figure 1 The right axonometric projection.

[0023] Explanation of reference numerals in the attached figures:

[0024] 10-Backrest frame; 11-Side panel; 12-Armrest; 13-First angle adjuster; 14-First angle adjuster motor; 15-First drive shaft; 16-First connecting pipe; 161-Alignment groove; 17-Second connecting pipe; 171-Alignment protrusion; 18-Limiting baffle; 19-Limiting shaft; 20-Top connector; 21-Headrest mounting bracket; 22-Middle reinforcing crossbar; 23-Bottom reinforcing crossbar; 24-Adjuster lower plate; 25-Second angle adjuster; 26-Second angle adjuster motor. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0026] like Figure 1 As shown, the seat back frame of this embodiment includes a seat back frame 10, which includes two oppositely arranged side plates 11. An electrically adjustable armrest mechanism is installed on one or both side plates 11. Specifically, the electrically adjustable armrest mechanism of this embodiment includes an armrest 12, a first adjuster 13 and a first adjuster motor 14 fixedly installed on the seat back frame 10. The input end of the first adjuster 13 is drive-connected to the first adjuster motor 14, and the output end of the first adjuster 13 is drive-connected to the armrest 12. In this embodiment, the electrically adjustable armrest mechanism is installed on only one side plate 11. The first adjuster 13 and the first adjuster motor 14 are respectively fixedly installed on the corresponding side plate 11, and the first adjuster motor 14 is drive-connected to the first adjuster 13 via a first drive shaft 15. Of course, in some other embodiments, an electric adjustable handrail mechanism can be installed on each of the two side plates 12. In this case, a first drive shaft 15 can be provided between the two first angle adjusters 13, and a first angle adjuster motor 14 is provided and connected to the first drive shaft 15 for transmission.

[0027] In this embodiment, the seat back frame has an electrically adjustable armrest mechanism installed on the side plate 11. The angle of the armrest 12 can be adjusted by using the first angle adjuster motor 14 and the first angle adjuster 13. The armrest 12 can be fixed at any angle. Thus, even if the passenger changes their sitting posture, the armrest 12 can be fixed at a certain angle, providing better support and improving comfort.

[0028] In a preferred embodiment of this example, a first connecting pipe 16 is installed at the output end of the first angle adjuster 13, and a second connecting pipe 17 is installed on the handrail 12. The first connecting pipe 16 and the second connecting pipe 17 are connected, and an alignment structure for defining the installation position of the handrail 12 is provided between the first connecting pipe 16 and the second connecting pipe 17. The alignment structure can be implemented in various existing ways, and its main technical purpose is to locate the initial installation position of the handrail 12. In this embodiment, the alignment structure includes an alignment groove 161 provided on the first connecting pipe 16, and an alignment protrusion 171 provided on the second connecting pipe 17 that mates with the alignment groove 161. In this embodiment, both the alignment groove 161 and the alignment protrusion 171 are trapezoidal structures. By aligning the alignment groove 161 and the alignment protrusion 171, the initial installation position of the handrail 12 can be located; in addition, by making the alignment groove 161 and the alignment protrusion 171 trapezoidal structures, the connection gap between the first connecting pipe 16 and the second connecting pipe 17 can be eliminated.

[0029] In a preferred embodiment of this invention, a limiting structure for limiting the rotation angle of the armrest 12 is further provided between the first angle adjuster 13 and the backrest frame 10. The limiting structure can be implemented using various existing methods, and its main technical purpose is to constrain the angle adjustment range of the armrest 12. In this embodiment, the limiting structure includes a limiting baffle 18 installed at the output end of the first angle adjuster 13 and a limiting shaft 19 installed on the backrest frame 10 and cooperating with the limiting baffle 18. The limiting baffle 18 rotates synchronously with the output end of the first angle adjuster 13, and the limiting effect between the limiting baffle 18 and the limiting shaft 19 constrains the rotation angle range of the armrest 12.

[0030] In this embodiment, a top connector 20 is provided between the tops of the two side plates 12, and a headrest mounting bracket 21 for mounting a headrest is provided on the top connector 20. A middle reinforcing crossbar 22 and a bottom reinforcing crossbar 23 are respectively provided in the middle and bottom of the two side plates 12.

[0031] The seat back frame of this embodiment also includes an adjuster assembly, which includes two lower adjuster plates 24 arranged opposite to each other. In this embodiment, the lower adjuster plates 24 and the side plates 12 are arranged in a one-to-one correspondence, and a second adjuster 25 is provided between the corresponding lower adjuster plates 24 and the side plates 12. A second drive shaft 26 is provided between the two second adjusters 25, and a second adjuster motor 26 for driving the second drive shaft 25 to rotate is provided on the seat back frame 10.

[0032] This embodiment also proposes a seat including, for example, the upper seat back frame of this embodiment.

[0033] The above-described embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention. The scope of protection of the present invention is defined by the claims.

Claims

1. An electrically adjustable movable handrail mechanism, characterized in that: It includes an armrest, a first angle adjuster and a first angle adjuster motor fixedly installed on the backrest frame, the input end of the first angle adjuster is drivenly connected to the first angle adjuster motor, and the output end of the first angle adjuster is drivenly connected to the armrest.

2. The electrically adjustable movable armrest mechanism according to claim 1, characterized in that: The output end of the first angle adjuster is equipped with a first connecting pipe, and the armrest is equipped with a second connecting pipe. An alignment structure for defining the installation position of the armrest is provided between the first connecting pipe and the second connecting pipe.

3. The electrically adjustable movable armrest mechanism according to claim 2, characterized in that: The alignment structure includes an alignment groove on the first connecting pipe and an alignment protrusion on the second connecting pipe that mates with the alignment groove; both the alignment groove and the alignment protrusion are trapezoidal structures.

4. The electrically adjustable movable armrest mechanism according to claim 1, characterized in that: The first angle adjuster is further provided with a limiting structure between itself and the backrest frame to limit the rotation angle position of the armrest.

5. The electrically adjustable movable armrest mechanism according to claim 4, characterized in that: The limiting structure includes a limiting baffle installed at the output end of the first angle adjuster and a limiting shaft installed on the backrest frame that cooperates with the limiting baffle.

6. A seat back frame, characterized in that: The chair back frame includes two side plates arranged opposite each other, wherein one or both side plates are equipped with an electrically adjustable armrest mechanism as described in any one of claims 1-5, and the first angle adjuster and the first angle adjuster motor are respectively fixedly installed on the corresponding side plates.

7. The seat back frame according to claim 6, characterized in that: The two side plates are respectively equipped with the electric adjustable handrail mechanism; a first drive shaft is provided between the two first angle adjusters, and the first angle adjuster motor is set as one and is connected to the first drive shaft for transmission.

8. The seat back frame according to claim 6, characterized in that: A top connector is provided between the tops of the two side plates, and a headrest mounting bracket for mounting the headrest is provided on the top connector; a middle reinforcing crossbar and a bottom reinforcing crossbar are respectively provided in the middle and bottom of the two side plates.

9. The seat back frame according to any one of claims 6-8, characterized in that: It also includes a turntable assembly, which comprises two turntable lower plates arranged opposite to each other; The lower plate of the angle adjuster is provided in a one-to-one correspondence with the side plate, and a second angle adjuster is provided between the lower plate of the angle adjuster and the side plate. A second drive shaft is provided between the two second angle adjusters, and a second angle adjuster motor for driving the second drive shaft to rotate is provided on the chair back frame.

10. A seat, comprising a seat back frame as described in any one of claims 6-9.

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