Foldable car seat

Abstract

The present invention discloses a foldable car seat, comprising a cushion frame and a backrest frame, wherein the cushion frame is connected to a hidden groove through a ground anchor bracket, the ground anchor bracket comprises two bases and two connecting arms, the base is connected to one end of the connecting arm through a recliner and a rotating shaft, and the other end of the connecting arm is connected to a side plate on the cushion frame through two recliners; the backrest frame is connected to the cushion frame through an adapter plate, one end of the adapter plate is connected to the backrest frame through a recliner and a rotating shaft, and the other end is connected to the two ends of a rear connecting rod on the cushion frame; an unlocking mechanism is provided at the outer top and middle part of the backrest frame. The present invention is ingenious in conception, compact and reasonable in layout, and the entire linkage mechanism has a simple structure. By adjusting the seat unlocking handle and unlocking the recliner, the seat folding function can be manually adjusted, and the operation is convenient and quick, and the stability is more reliable.

Description

Technical Field

[0001] The invention relates to the technical field of automobile seats, in particular to a foldable automobile seat. Background Art

[0002] At present, folding seats have been widely used in passenger cars, the main purpose is to expand the loading space in the car, to accommodate more items, or to increase the space in the car and improve the riding comfort of passengers. The Chinese patent, publication number CN104002706A, the invention name is a storage device for vehicle seats, wherein the seats are stored in the storage space formed thereunder, so that compared with the related art, a wide luggage space can be ensured and the unit cost can be reduced without using independent slide rails. In addition, when switching between the passenger space (seat mode) and the luggage space (luggage mode) of the vertically movable and foldable multifunctional rear seat, the storage device uses the space of the rear seat in a variety of ways. However, the folding car seat in this patented technology still has the disadvantages of complex structure, poor stability, and limited space after folding, which requires further optimization and upgrading.

[0003] The Chinese utility model patent, with publication number CN206914179U and patent name "hidden car trunk folding seat", relates to a car seat, including a backrest and / or a seat cushion connected to the trunk partition layer, the trunk partition layer is recessed downward and is provided with a receiving groove that can accommodate the backrest and / or the seat cushion, when the folding seat is opened, the receiving groove is located in front of the folding seat to form a passenger footrest space, when the folding seat is folded and stored, the backrest and / or the seat cushion can be flatly accommodated in the receiving groove, and does not protrude from the upper surface of the trunk partition layer. When the folding seat is not in use, the backrest and / or the seat cushion of the folding seat can be folded in the trunk partition layer, does not protrude from the upper surface of the trunk partition layer, does not occupy the space of the trunk, and when needed, the seat cushion and the backrest of the folding seat are opened separately to form a convenient seat, so as to achieve the purpose of taking and using. However, the folding and hiding position of the middle seat in this patent is the third row foot space position, and the folding method is through the backrest rotation point, the backrest is first flipped flat, and then through the seat cushion rotation point, the seat cushion and backrest are flipped forward together. This design makes the utilization rate of the rear luggage compartment space limited, and also affects the space for the second row seats to slide forward and backward, blocking the space for the second row to move backward, which has a great impact on its comfort. In addition, this patent simply explains how to rotate the connecting shaft, and lacks a detailed structural description of how to position and lock it, which is difficult for technical personnel in this field to implement.

[0004] In summary, how to develop a foldable seat with a simple structure, convenient and quick use, and high space utilization has become a technical problem that needs to be solved urgently by technical personnel in this field. Summary of the invention

[0005] The purpose of the present invention is to provide a foldable car seat, which is mainly used for the setting of the third row of seats. After being folded down, it can be hidden under the car floor to form a flat and higher trunk loading space. When the third row of seats is activated, the hollow position of the hidden seat also has a very good luggage accommodating space. At the same time, the structure is simple and the stability is good.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] The present invention provides a foldable car seat, comprising a seat cushion frame and a backrest frame, wherein the seat cushion frame is connected to a hidden groove through a ground anchor bracket, the ground anchor bracket comprises two bases and two connecting arms, the connecting arm is located above the front end of the base, the base is connected to one end of the connecting arm through an angle adjuster and a rotating shaft, the fixed end of the base is connected in the hidden groove, and the other end of the connecting arm is connected to the side plate on the seat cushion frame through two angle adjusters; the backrest frame is flipably connected to the upper rear end of the seat cushion frame through two adapter plates, one end of the adapter plate is connected to the backrest frame through a angle adjuster and a rotating shaft, and the other end of the adapter plate is connected to the two ends of the rear connecting rod on the seat cushion frame; an unlocking mechanism is provided at the outer top end and the middle part of the backrest frame.

[0008] Preferably, the anchor bracket includes a first base, a second base, a first connecting arm and a second connecting arm, and the hidden groove is surrounded by the front side wall, the bottom plate, the rear side wall and the symmetrical left and right side walls of the bottom of the car body. The first base and the second base are symmetrically placed and connected to the front side wall by bolts. The lower end of the first connecting arm is hinged to the first base through a first rotating shaft, and the upper end corner of the first connecting arm is connected to the first side plate on the seat cushion frame through a second angle adjuster; the lower end of the second connecting arm is hinged to the second base through a first angle adjuster, and the upper end corner of the second connecting arm is connected to the second side plate on the seat cushion frame through a third angle adjuster; the front end bent edge end faces of the first connecting arm and the second connecting arm are both in contact with the car floor.

[0009] Preferably, the first base and the second base are located in the upper middle portion of the front side wall.

[0010] Preferably, the adapter plate includes a first adapter plate and a second adapter plate, the top end of the first adapter plate is hinged to the bottom of one side panel of the backrest frame through a second rotating shaft, and the bottom end of the first adapter plate is sleeved on one end of the rear connecting rod and connected to the first side panel through screws; the top end of the second adapter plate is hinged to the bottom of the other side panel of the backrest frame through a fourth angle adjuster, and the bottom end of the second adapter plate is sleeved on the other end of the rear connecting rod and connected to the second side panel through screws.

[0011] Preferably, the first and fourth angle adjusters are single-sided adjusters, and the second and third angle adjusters are double-sided adjusters; the first and third angle adjusters are welded on the rotation point of the second connecting arm, the second angle adjuster is welded at the upper corner of the first connecting arm, and the fourth angle adjuster is welded to the top of the second adapter plate.

[0012] Preferably, the unlocking mechanism comprises a seat cushion unlocking assembly and a backrest unlocking assembly, the seat cushion unlocking assembly is installed at a middle portion of the backrest frame, and the backrest unlocking assembly is installed at an outer top end of the backrest frame.

[0013] Preferably, the unlocking mechanism includes a wiring harness and an unlocking switch, the wiring harness on the seat cushion unlocking assembly is connected to the first recliner, the second recliner, and the third recliner, and the wiring harness on the backrest unlocking assembly is connected to the fourth recliner.

[0014] Compared with the prior art, the beneficial technical effects of the present invention are:

[0015] The present invention provides a foldable car seat, comprising a seat cushion frame and a backrest frame, wherein the backrest frame is flipably connected to the upper rear end of the seat cushion frame through two adapter plates, and the seat cushion frame is connected to a hidden groove through a ground anchor bracket, and the ground anchor bracket comprises two bases and two connecting arms, and also comprises a plurality of angle adjusters and a plurality of rotating shafts for connection at the rotation points, and an unlocking mechanism is arranged at the outer top end and the middle part of the backrest frame, and the unlocking mechanism is connected to the plurality of angle adjusters; specifically, the invention is mainly applied to the installation and use of the third row of seats, which can be hidden in the hidden groove and completely placed under the floor of the vehicle compartment after being folded down, forming a flat and higher trunk loading space, and when the third row of seats is activated, the hollowed-out hidden groove of the hidden seat is converted into a luggage storage space, which has a large storage space and is located behind the seat, and has no influence on the riding comfort of the third row of seats and the adjustment of the second row of seats.

[0016] The main core driving mechanism used in this invention is the recliner, which is a device installed on the car seat to achieve seat angle adjustment. The present invention uses a discontinuous adjustment recliner, which cooperates with the handle unlocking mechanism. The locking or unlocking of the device is controlled by a handle or a rod-type unlocking switch to achieve discontinuous adjustment of the car seat angle. The total number of recliners used in the entire linkage mechanism is four, one is arranged on the rear base, two are placed on the seat cushion to ensure the stability of the entire seat cushion linkage, and one is placed on the backrest. The placement position is in the middle position, mainly considering to meet the static strength requirements of the backrest.

[0017] In addition, the two connecting arms are cleverly designed to act as supporting feet when the seat is in use, and as connecting rods when the seat is folded. When the recliner is unlocked, the seat cushion and backrest move backwards through this connecting arm. After the seat is folded, this connecting arm cleverly folds into a hidden groove to ensure the flatness of the entire luggage compartment surface.

[0018] To sum up, the present invention has an ingenious conception, a compact and reasonable layout, and a simple structure of the entire linkage mechanism. By adjusting the seat unlocking handle and unlocking the angle adjuster, the seat folding function can be manually adjusted. The operation is convenient and quick. Compared with the existing folding seats, the present invention reduces the complex connecting rod mechanism and has more reliable stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the structure of a foldable automobile seat of the present invention;

[0021] Figure 2 A schematic diagram of the foldable car seat back of the present invention; (perspective)

[0022] Figure 3 This is a schematic diagram of the use state of the present invention; (open state)

[0023] Figure 4 A schematic diagram of the folded state of the present invention;

[0024] Figure 5 It is the working principle diagram of the present invention;

[0025] Figure 6 It is a schematic diagram of the structure of the first connecting arm and the second connecting arm of the present invention;

[0026] Explanation of the accompanying drawings: 1-1, first base; 1-2, second base; 1-3, first connecting arm; 1-4, second connecting arm; 2, seat cushion frame; 2-1, first side panel; 2-2, second side panel; 2-3, rear connecting rod; 3, backrest frame; 3-1, first adapter plate; 3-2, second adapter plate; 4-1, first angle adjuster; 4-2, second angle adjuster; 4-3, third angle adjuster; 4-4, fourth angle adjuster; 5-1, first rotating axis; 5-2, second rotating axis; 6, seat cushion unlocking assembly; 7, backrest unlocking assembly; 8, hidden groove; 8-1, front side wall; 8-2, bottom plate; 8-3, rear side wall. DETAILED DESCRIPTION

[0027] like Figure 1-6As shown, a foldable car seat comprises a cushion frame 2 and a backrest frame 3, wherein the cushion frame 2 is connected to a hidden groove 8 through a ground anchor bracket, and the ground anchor bracket comprises two bases and two connecting arms, wherein the connecting arm is located above the front end of the base, and the base is connected to one end of the connecting arm through a recliner and a rotating shaft, and the fixed end of the base is connected in the hidden groove 8, and the other end of the connecting arm is connected to the side plate on the cushion frame through two recliners; the backrest frame 3 is flipably connected to the rear end of the cushion frame 2 through two adapter plates, and one end of the adapter plate is connected to the backrest frame 3 through a recliner and a rotating shaft, and the other end of the adapter plate is connected to the two ends of the rear connecting rod 2-3 on the cushion frame; an unlocking mechanism is provided at the outer top and middle part of the backrest frame 3. The invention is mainly used for the installation and use of the third row of seats. After the third row of seats are folded down, they can be hidden in the hidden groove and completely placed under the floor of the vehicle, forming a flat and high trunk loading space. When the third row of seats is activated, the hollowed-out hidden groove of the hidden seat is converted into a luggage storage space. The storage space is large and located behind the seat, which has no effect on the riding comfort of the third row of seats and the adjustment of the second row of seats. A foldable or pull-out headrest is installed above the backrest frame 3. When folding, the headrest can be rotated to the front of the backrest frame 3 or pulled out and placed separately.

[0028] Specifically, the anchor bracket includes a first base 1-1, a second base 1-2, a first connecting arm 1-3 and a second connecting arm 1-4. The hidden groove 8 is surrounded by the front side wall 8-1, the bottom plate 8-2, the rear side wall 8-2 and the symmetrical left and right side walls at the bottom of the car body. The first base 1-1 and the second base 1-2 are symmetrically placed and connected to the front side wall 8-1 by bolts. The lower end of the first connecting arm 1-3 is hinged to the first base 1-1 through a first rotating shaft 5-1, and the upper end corner of the first connecting arm 1-3 is connected to the first side plate 2-1 on the seat cushion frame 2 through a second angle adjuster 4-2; the lower end of the second connecting arm 1-4 is hinged to the second base 1-2 through a first angle adjuster 4-1, and the upper end corner of the second connecting arm 1-4 is connected to the second side plate 2-2 on the seat cushion frame 2 through a third angle adjuster 4-3; the front end bent edge end faces of the first connecting arm 1-3 and the second connecting arm 1-4 are both in contact with the car floor. The first base 1 - 1 and the second base 1 - 2 are located in the upper middle portion of the front side wall 8 - 1 .

[0029] Specifically, the adapter plate includes a first adapter plate 3-1 and a second adapter plate 3-2, the top end of the first adapter plate 3-1 is hinged to the bottom of one side panel of the backrest frame 3 through a second rotating shaft 5-2, and the bottom end of the first adapter plate 3-1 is sleeved on one end of the rear connecting rod 2-3 and connected to the first side panel 2-1 through screws; the top end of the second adapter plate 3-2 is hinged to the bottom of the other side panel of the backrest frame 3 through a fourth angle adjuster 4-4, and the bottom end of the second adapter plate 3-2 is sleeved on the other end of the rear connecting rod 2-3 and connected to the second side panel 2-2 through screws.

[0030] The first recliner 4-1 and the fourth recliner 4-4 are single-sided recliners, and the second recliner 4-2 and the third recliner 4-3 are double-sided adjusters; the first recliner 4-1 and the third recliner 4-3 are welded to the rotation point of the second connecting arm 1-4, the second recliner 4-2 is welded to the upper corner of the first connecting arm 1-3, and the fourth recliner 4-4 is welded to the top of the second adapter plate 3-2. Specifically, the first recliner 4-1, the second recliner 4-2, the third recliner 4-3 and the fourth recliner 4-4 are non-continuous adjustment recliners, which are characterized by controlling the locking or unlocking of the device through a handle or a rod, so as to achieve non-continuous adjustment of the angle of the car seat, and the operation is convenient and quick.

[0031] Specifically, the unlocking mechanism includes a seat cushion unlocking assembly 6 and a backrest unlocking assembly 7. The seat cushion unlocking assembly 6 is installed in the middle part of the backrest frame 3, and the backrest unlocking assembly 7 is installed at the outer top end of the backrest frame 3. The unlocking mechanism includes a wiring harness and an unlocking switch. The wiring harness on the seat cushion unlocking assembly 6 is connected to the first recliner 4-1, the second recliner 4-2, and the third recliner 4-3, and the wiring harness on the backrest unlocking assembly 7 is connected to the fourth recliner 4-4. When operating the whole, first operate the unlocking switch on the seat cushion unlocking assembly 6, unlock the first recliner 4-1, the second recliner 4-2, and the third recliner 4-3, and then move the seat cushion as a whole backward into the hidden groove 8, and then unlock the unlocking switch on the backrest unlocking assembly 7. After the fourth recliner 4-4 is unlocked, fold the backrest as a whole forward onto the seat cushion as a whole.

[0032] like Figure 3-5 As shown, the action process of the present invention is as follows:

[0033] When the seats are folded:

[0034] The first step is to operate the seat cushion unlocking assembly 6, and the first recliner 4-1, the second recliner 4-2 and the third recliner 4-3 will be unlocked synchronously by pulling the wire, and the seat cushion frame 2 and the backrest frame 3 will be gradually folded backward and downward around the rotation center of the first recliner 4-1, the second recliner 4-2 and the third recliner 4-3 as a whole, until the seat cushion frame 2 and the backrest frame 3 are recovered as a whole into the hidden groove 8 on the floor of the vehicle;

[0035] The second step is to operate the backrest unlocking assembly 7, and the fourth recliner 4-4 will be unlocked synchronously through the pull wire, and the backrest frame 3 will gradually fold forward around the rotation center of the fourth recliner 4-4 until it is flattened and flush with the car floor.

[0036] When the seat is activated:

[0037] The first step is to operate the backrest unlocking assembly 7, and the fourth recliner 4-4 will be unlocked synchronously by pulling the wire, and the backrest frame 3 will gradually flip backward around the rotation center of the fourth recliner 4-4 until it is flipped to the rear stop point;

[0038] The second step is to operate the seat cushion unlocking assembly 6, which will synchronously unlock the first recliner 4-1, the second recliner 4-2, and the third recliner 4-3 through the pull wire, and the seat cushion frame 2 and the backrest frame 3 will gradually flip up and forward around the rotation center of the first recliner 4-1, the second recliner 4-2, and the third recliner 4-3 as a whole, until the seat cushion frame 2 and the backrest frame 3 are flipped up as a whole until they are in contact with the front floor of the vehicle.

[0039] In general, the present invention has a simpler structure, is more convenient to operate, has a more spacious storage space, and can quickly realize the seat folding function.

[0040] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A foldable car seat, characterized in that: The invention comprises a seat frame (2) and a backrest frame (3), wherein the seat frame (2) is connected to a hidden groove (8) via a ground anchor bracket, wherein the ground anchor bracket comprises two bases and two connecting arms, wherein the connecting arm is located above the front end of the base, wherein the base is connected to one end of the connecting arm via an angle adjuster and a rotating shaft, wherein the fixed end of the base is connected to the hidden groove (8), and the other end of the connecting arm is connected to the side plate on the seat frame via two angle adjusters; wherein the backrest frame (3) is flipably connected to the rear end of the seat frame (2) via two adapter plates, wherein one end of the adapter plate is connected to the backrest frame (3) via an angle adjuster and a rotating shaft, and the other end of the adapter plate is connected to the two ends of the rear connecting rod (2-3) on the seat frame; wherein an unlocking mechanism is arranged at the outer top and middle part of the backrest frame (3); The anchor bracket comprises a first base (1-1), a second base (1-2), a first connecting arm (1-3) and a second connecting arm (1-4); the hidden groove (8) is surrounded by a front side wall (8-1), a bottom plate (8-2), a rear side wall (8-3) and symmetrical left and right side walls at the bottom of the carriage to form a groove body; the first base (1-1) and the second base (1-2) are symmetrically placed and connected to the front side wall (8-1) by bolts; the first base (1-1) and the second base (1-2) are located in the middle and upper part of the front side wall (8-1); the lower end of the first connecting arm (1-3) is connected to the front side wall (8-1) by a first rotating shaft (5 -1) is hinged to the first base (1-1), the upper corner of the first connecting arm (1-3) is connected to the first side plate (2-1) on the seat cushion frame (2) through a second angle adjuster (4-2); the lower end of the second connecting arm (1-4) is hinged to the second base (1-2) through the first angle adjuster (4-1), and the upper corner of the second connecting arm (1-4) is connected to the second side plate (2-2) on the seat cushion frame (2) through a third angle adjuster (4-3); the front end bent edge end surfaces of the first connecting arm (1-3) and the second connecting arm (1-4) are both in contact with the vehicle floor; The adapter plate comprises a first adapter plate (3-1) and a second adapter plate (3-2); the top end of the first adapter plate (3-1) is hinged to the bottom of one side plate of the backrest frame (3) via a second rotating shaft (5-2); the bottom end of the first adapter plate (3-1) is sleeved on one end of the rear connecting rod (2-3) and connected to the first side plate (2-1) via screws; the top end of the second adapter plate (3-2) is hinged to the bottom of the other side plate of the backrest frame (3) via a fourth angle adjuster (4-4); the bottom end of the second adapter plate (3-2) is sleeved on the other end of the rear connecting rod (2-3) and connected to the second side plate (2-2) via screws; The first angle adjuster (4-1) and the fourth angle adjuster (4-4) are single-sided adjusters, and the second angle adjuster (4-2) and the third angle adjuster (4-3) are double-sided adjusters; the first angle adjuster (4-1) and the third angle adjuster (4-3) are welded at the rotation point of the second connecting arm (1-4), the second angle adjuster (4-2) is welded at the upper corner of the first connecting arm (1-3), and the fourth angle adjuster (4-4) is welded at the top of the second adapter plate (3-2); The unlocking mechanism comprises a seat cushion unlocking component (6) and a backrest unlocking component (7), wherein the seat cushion unlocking component (6) is installed at the middle part of the backrest frame (3), and the backrest unlocking component (7) is installed at the outer top end of the backrest frame (3); The wiring harness on the seat cushion unlocking assembly (6) is connected to the first recliner (4-1), the second recliner (4-2), and the third recliner (4-3), and the wiring harness on the backrest unlocking assembly (7) is connected to the fourth recliner (4-4); The working process of the foldable car seat is as follows: When the seats are folded: The first step is to operate the seat cushion unlocking assembly (6), and the first recliner (4-1), the second recliner (4-2) and the third recliner (4-3) are unlocked synchronously by pulling the wire, and the seat cushion frame (2) and the backrest frame (3) are gradually folded backward and downward around the rotation center of the first recliner (4-1), the second recliner (4-2) and the third recliner (4-3), until the seat cushion frame (2) and the backrest frame (3) are completely retracted into the hidden groove (8) on the floor of the vehicle compartment; The second step is to operate the backrest unlocking assembly (7), and the fourth recliner (4-4) will be unlocked synchronously by pulling the wire, and the backrest frame (3) will gradually fold forward around the rotation center of the fourth recliner (4-4) until it is turned flat and flush with the floor of the vehicle compartment; When the seat is activated: The first step is to operate the backrest unlocking component (7), and the fourth recliner (4-4) will be unlocked synchronously by pulling the wire, and the backrest frame (3) will gradually flip backward around the rotation center of the fourth recliner (4-4) until it is flipped to the rear stop point position; In the second step, the seat cushion unlocking assembly (6) is operated to synchronously unlock the first recliner (4-1), the second recliner (4-2) and the third recliner (4-3) through the pull wire, and the seat cushion frame (2) and the backrest frame (3) are gradually flipped upward and forward around the rotation center of the first recliner (4-1), the second recliner (4-2) and the third recliner (4-3) as a whole, until the seat cushion frame (2) and the backrest frame (3) are flipped up as a whole until they are in contact with the front floor of the vehicle compartment.

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