Seat back integrated footrest

Abstract

The present invention discloses a seat backrest integrated footrest device, comprising a bracket assembly arranged inside the backrest and a footrest plate arranged on the back side of the backrest, wherein a swing arm assembly is fixedly provided on the footrest plate, and the swing arm assembly is rotatably mounted on the bracket assembly, and a driving mechanism is installed inside the backrest, which can drive the swing arm assembly to rotate out or rotate into the backrest in a telescopic motion, so as to expand or retract the footrest plate. The beneficial effects of the present invention are: the footrest plate is rotated and expanded by the telescopic motion of an electric push rod, and the driving module inside the backrest does not occupy too much backrest frame space, thereby realizing a thin structural design and not increasing the thickness of the backrest. At the same time, it also has the technical advantages of beautiful seat appearance, simple structure, low cost, separate disassembly and assembly of the footrest, convenient maintenance and replacement, and good interchangeability.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile footrests, and in particular relates to a seat back integrated footrest device. Background Art

[0002] With the advancement of automotive technology and the improvement of quality of life, consumers are demanding increasingly higher levels of comfort in their vehicles. Currently, to enhance the riding experience for passengers in the middle and rear seats, some mid- to high-end vehicles offer footrests to support their feet and alleviate foot discomfort during long rides. These footrests are typically located on the backrests of the front seats and can be flipped down and deployed when needed.

[0003] However, in the existing design structure of the backrest footrest, due to the limited available space of the backrest frame and the influence of the seat safety performance, the existing footrest has the disadvantages of overly complex installation layout and structural design, which increases the thickness of the backrest, compresses the riding space in the car, is too thick and uncoordinated, and the seat appearance is poor. In addition, the comfort and convenience need to be further improved. Summary of the Invention

[0004] In view of this, the present invention provides a seat back integrated footrest device, which realizes a thin design of the driving part and has technical advantages such as simple structural design and fewer parts.

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

[0006] A seat backrest integrated footrest device, the key of which is that it includes a bracket assembly arranged inside the backrest and a footrest plate arranged on the back side of the backrest, wherein a swing arm assembly is fixedly provided on the footrest plate, and the swing arm assembly is rotatably assembled on the bracket assembly, and a driving mechanism is installed inside the backrest, which can drive the swing arm assembly to rotate out or into the backrest in a telescopic motion to expand or retract the footrest plate.

[0007] With the above structure, in a backrest with narrow available space, the drive mechanism controls the flipping of the footrest by telescopic movement. The entire internal drive module does not take up too much backrest frame space, which is conducive to achieving a thin design without increasing the backrest thickness.

[0008] Preferably, the swing arm assembly comprises a rigidly connected outer swing arm and inner swing arm, wherein the outer swing arm is an arc-shaped structure with its outer end fixedly mounted on the footrest, and the inner swing arm is rotatably connected to the bracket assembly. With this structure, when the drive mechanism moves telescopically, it is convenient to control the flipping of the footrest.

[0009] Preferably, the inner swing arm comprises an arcuate section and a mounting section offset to one side relative to the arcuate section, wherein the mounting section is rotatably connected to the bracket assembly.

[0010] Preferably, the arc section is adapted to the curvature of the outer swing arm, and the two are detachably connected. Through the detachable connection, the user can replace the footrest located on the backrest back at any time according to personal needs, and the interchangeability is good.

[0011] Preferably, the bracket assembly includes two supporting parts symmetrically mounted inside the backrest, a rotating shaft is rotatably mounted between the two supporting parts, and the mounting section is fixedly connected to the rotating shaft. The above structure is adopted to facilitate assembly.

[0012] Preferably, the support component is provided with a first limit portion and a second limit portion, and the rotation range of the inner swing arm is located between the first limit portion and the second limit portion. The support component is formed with flanges at positions corresponding to the first limit portion and the second limit portion. A reinforcement component is connected between the support component and the backrest.

[0013] When the footrest is unfolded and used, the gravity of the user's lower limbs and the downward pressure of the feet are both borne on the supporting components. The above structural layout is conducive to ensuring the reliability of force.

[0014] Preferably, a lug is provided on one side of the inner swing arm, and the driving mechanism is an electric push rod, one end of which is hinged on the backrest and the other end is hinged on the lug. With the above structure, the electric push rod can drive the footrest to rotate.

[0015] As a preferred embodiment, the electric push rod is arranged along the height direction of the backrest. With the above structure, the space layout is reasonable, the backrest space occupied is less, and it can be conveniently arranged in the seat.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The footrest is rotated and expanded by the telescopic movement of the electric push rod. The drive module inside the backrest does not take up too much space in the backrest frame, realizing a thin structural design without increasing the thickness of the backrest.

[0018] 2. Due to the thin structural design, the leg rest is not only suitable for mid-to-high-end models, but also for compact models.

[0019] 3. Few parts, simple structure, easy to implement, and broad market application prospects.

[0020] 4. The outer swing arm and the inner swing arm are assembled and connected in a detachable manner, so that the footrest located on the outside of the backrest can be replaced at any time, with good interchangeability, which can meet the user's personalized selection needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 A partial exploded diagram showing the layout of the bracket assembly, foot support plate, swing arm assembly, and push rod motor;

[0023] Figure 3 This is a reference diagram of the footrest being folded behind the backrest;

[0024] Figure 4 The reference diagram shows the footrest unfolded and in use behind the backrest. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0026] like Figure 1 and 2 As shown, a seat back integrated footrest device, the main components involved in the device are: a bracket assembly 1, a footrest plate 2, a swing arm assembly 3 and a drive mechanism 4.

[0027] The bracket assembly 1 is arranged inside the backrest A. The bracket assembly 1 includes two supporting components 1 a symmetrically installed inside the backrest A, and a rotating shaft 1 b rotatably installed between the two supporting components 1 a.

[0028] The swing arm assembly 3 includes an outer swing arm 3a, an inner swing arm 3b and a support ear 3c that are rigidly connected as one. The outer swing arm 3a has an arc-shaped structure, and its outer end is fixedly assembled on the foot support plate 2. The inner swing arm 3b has an arc-shaped segment 3b1 and a mounting segment 3b2 offset to one side relative to the arc-shaped segment 3b1. The offset setting of the mounting segment 3b2 can enhance the structural strength of the inner swing arm 3b itself. The end of the mounting segment 3b2 is welded and fixed to the rotating shaft 1b. Based on this mounting relationship, the foot support plate 2 can rotate relative to the supporting component 1a through the swing arm assembly 3.

[0029] In this embodiment, the driving mechanism 4 is preferably an electric push rod, the upper end of the electric push rod is hinged in the backrest A, and the lower end is hinged on the ear 3c, and the ear 3c is fixedly connected to the side of the inner swing arm 3b away from the mounting section 3b2. The upward and downward telescopic movement of the electric push rod can cause the entire swing arm assembly 3 to rotate relative to the support component 1a, that is, the upward contraction of the electric push rod can cause the footrest 2 to flip backward to Figure 4 The electric push rod extends downward to enable the footrest 2 to rotate forward to Figure 3The state shown is to achieve the folding of the foot support plate 2.

[0030] For example Figure 1 As shown, the electric push rod is arranged along the height direction of the backrest A. Such a design can make full use of the internal space of the backrest frame and occupy less backrest space, so that the entire internal drive module will not occupy too much backrest frame space, which is conducive to achieving a thin design without increasing the backrest thickness.

[0031] For example Figure 2 As shown, the support component 1a is provided with a first limit portion 1a1 and a second limit portion 1a2. The rotation range of the inner swing arm 3b is limited between the first limit portion 1a1 and the second limit portion 1a2. When passengers in the middle and rear rows use the footrest, they can electronically move the entire seat forward, then rotate the backrest A to a slightly forward tilt. This creates space for the user to rest their feet on the footrest 2. Because the backrest A tilts slightly forward when the footrest is in use, the footrest 2 should be tilted at an angle greater than 90 degrees relative to the backrest A to maintain a horizontal position. When the footrest 2 is unfolded and used, the weight of the footrest 2 and the weight of the user's lower limbs are transferred to the backrest frame through the support component 1a. The following three technical means adopted in this embodiment are helpful to ensure the supporting strength of the entire footrest. First, the support component 1a is formed with a flange 1a3 at the position corresponding to the first limiting portion 1a1 and the second limiting portion 1a2, and the flange 1a3 can increase the force-bearing area; second, a reinforcement component 1c is connected between the support component 1a and the backrest A; third, the mounting section 3b2 of the inner swing arm 3b is offset to one side relative to the arc section 3b1.

[0032] like Figure 4 As shown, further, the arc segment 3b1 is adapted to the curvature of the outer swing arm 3a, and the two are assembled and connected in a detachable manner. After the footrest 2 is flipped backward, the arc segment 3b1 and the outer swing arm 3a are exposed on the back side of the backrest. At this time, the footrest 2 can be disassembled and assembled at will, ensuring that the user can choose footrests 2 of different styles or shapes according to personal preferences, and the product interchangeability is better.

[0033] 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. Such changes fall within the scope of protection of the present invention.

Claims

1. A seat back integrated footrest device, characterized in that: The invention comprises a bracket assembly (1) arranged inside a backrest (A) and a footrest (2) arranged on the rear side of the backrest (A), wherein a swing arm assembly (3) is fixedly provided on the footrest (2), and the swing arm assembly (3) is rotatably mounted on the bracket assembly (1); a driving mechanism (4) is installed inside the backrest (A) and can drive the swing arm assembly (3) to rotate out of or into the backrest (A) in a telescopic motion, so that the footrest (2) is unfolded or retracted; The swing arm assembly (3) comprises an outer swing arm (3a) and an inner swing arm (3b) that are rigidly connected, wherein the outer swing arm (3a) is an arc-shaped structure, and its outer end is fixedly mounted on the foot support plate (2), and the inner swing arm (3b) has an arc-shaped section (3b1) and a mounting section (3b2) offset to one side relative to the arc-shaped section (3b1); the bracket assembly (1) comprises two support components (1a) symmetrically mounted inside the backrest (A), a rotating shaft (1b) is rotatably mounted between the two support components (1a), and the mounting section (3b2) is fixedly connected to the rotating shaft (1b); The arc segment (3b1) is adapted to the curvature of the outer swing arm (3a), and the two are assembled and connected in a detachable manner; A support ear (3c) is provided on one side of the inner swing arm (3b), and the driving mechanism (4) is an electric push rod, one end of which is hinged to the backrest (A) and the other end is hinged to the support ear (3c).

2. The seat back integrated footrest device according to claim 1, characterized in that: A reinforcement component (1c) is connected between the support component (1a) and the backrest (A).

3. The seat back integrated footrest device according to claim 1, characterized in that: The support component (1a) is provided with a first limiting portion (1a1) and a second limiting portion (1a2) for limiting the rotation range of the inner swing arm (3b).

4. The seat back integrated footrest device according to claim 3, characterized in that: The support component (1a) is formed with flanges (1a3) at positions corresponding to the first limiting portion (1a1) and the second limiting portion (1a2).

5. The seat back integrated footrest device according to claim 1, characterized in that: The electric push rod is arranged along the height direction of the backrest (A).

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