A modular seat electric wing adjustment mechanism

Abstract

The present invention discloses a modular electric wing adjustment mechanism for a seat, including symmetrically arranged left and right electric wing adjustment mechanisms, each group of the electric wing adjustment mechanisms includes a backrest side beam assembly for support, a wing adjustment assembly and a motor drive assembly, the backrest side beam assembly is installed on both sides of the seat back, the lap joint is at a specified position of the backrest side beam assembly, and the wing adjustment assembly is connected to the motor drive assembly through a slider linkage plate. The mechanism of the present invention adopts a modular design, has strong versatility, is easy to disassemble and assemble, and adopts an electric mechanical adjustment method. Compared with the pneumatic adjustment commonly used in the prior art, the adjustment range is larger; the function of directly switching the car seat back or cushion wing between the normal state and the child seat state is realized.

Description

Technical Field

[0001] The invention relates to the technical field of adjustable seats, and in particular to an electric wing adjustment mechanism for a modular seat. Background Art

[0002] With the development of economy and the progress of automobile manufacturing industry, consumers pay more and more attention to the riding comfort of automobiles in addition to the safety of automobiles. Existing automobile seat backrests have side wings on both sides to wrap the human body, but most of the side wings are fixed and cannot be adjusted. When passengers of different body shapes ride, it is difficult for a burly person to fit between the two side wings or the wrapping is too tight, causing discomfort; when a thin person is wrapped, there is a large gap, and when making a sharp turn, it cannot provide effective support and fixation for the human body, causing the human body to slip sideways, which is easy to cause a dangerous situation.

[0003] The national invention patent, patent number 2018115476428, discloses a car seat back wing adjustment system, including a control switch, a control harness, an air valve controller, an air pump, an air pipe, a left sealing groove, a right sealing groove, a left drive slider, a right drive slider, and an adjustment leaf spring; by controlling the adjustment leaf spring to produce elastic deformation upward or gradually restore the shape downward, the width of the wing can be reduced or increased. The adjustment system of the present invention can achieve uniform and stepless adjustment of the seat wing, so that the wing can stop at any width within a certain stroke, and the wing can wrap the human body more closely for people of different heights, weights, and skinnies.

[0004] The national utility model patent, patent number 202020240379.4, discloses a pneumatic side wing structure for a child seat, including an upper plate, a lower plate and an air bag, the air bag is located between the upper plate and the lower plate, a mounting plate is arranged on the inner side of the lower plate, the mounting plate is provided with a mounting hole for fixing the seat frame, the upper plate, the lower plate and the air bag are connected in series by a pin shaft, so that the upper plate and the air bag can move relative to the lower plate; the air bag is provided with an inflation port for connecting an air pump. The pneumatic side wing structure for a child seat provided by the utility model utilizes the expansion of the air bag to adjust the opening and closing of the upper plate, which is convenient to adjust and has good comfort.

[0005] In summary, most of the existing seats with wing adjustment functions rely on pneumatic adjustment by air pumps. Although they provide effective support and fixation for the human body and avoid the risk of lateral slippage of the human body, they still have the disadvantages of limited air bag volume change and small adjustment stroke. Therefore, how to develop a modular electric seat wing adjustment mechanism to achieve a larger adjustment stroke than pneumatically adjusted wing has become a technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0006] The purpose of the present invention is to provide a modular seat electric wing adjustment mechanism to solve the problems of limited air bag driving variation and small adjustment stroke in the prior art.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0008] The present invention provides a modular electric wing adjustment mechanism for a seat, comprising symmetrically arranged left and right electric wing adjustment mechanisms, each group of the electric wing adjustment mechanisms comprising a supporting backrest side beam assembly, a wing adjustment assembly and a motor drive assembly, the backrest side beam assembly being installed on both sides of a seat backrest, the overlap being at a specified position of the backrest side beam assembly, and the wing adjustment assembly being transmission-connected with the motor drive assembly via a slider linkage plate.

[0009] Preferably, the backrest side beam assembly includes a backrest side beam, an overlapping upper bracket and an overlapping lower bracket, the overlapping upper bracket and the overlapping lower bracket are arranged in parallel on the inner side of the backrest side beam and are welded to the backrest side beam, the overlapping upper bracket and the overlapping lower bracket are each provided with a plurality of mounting through holes, and the overlapping upper bracket and the overlapping lower bracket are connected to a side wing adjustment assembly cover plate.

[0010] Preferably, the overlapping upper bracket is provided with four said mounting through holes and are arranged at equal intervals, the overlapping lower bracket is provided with three said mounting through holes and are arranged at equal intervals, and the mounting through holes are connected with rivet bolts, and the two side edges of the wing adjustment component cover plate are overlapped on the overlapping upper bracket and the overlapping lower bracket, and are positioned by rivet bolts and locked by nuts.

[0011] Preferably, the flank adjustment component cover plate and one side of the overlapping upper bracket are penetrated by the first and second self-clinching bolts and then tightened and fixed by the first and second nuts, and the flank adjustment component cover plate and one side of the overlapping lower bracket are penetrated by the third and fourth self-clinching bolts and then tightened and fixed by the third and fourth nuts.

[0012] Preferably, the side wing adjustment assembly includes a support frame and a side wing plastic part mounting plate, the support frame includes two adjustable side wing frame side plates and two round tubes, the round tubes and the adjustable side wing frame side plates are welded together to form a square closed support frame, and the side wing plastic part mounting plate is welded to the support frame.

[0013] Preferably, the circular tube includes a first circular tube on the outer side and a second circular tube on the inner side, the first circular tube and the second circular tube are arranged in parallel, the adjustable side wing frame side plate includes a first adjustable side wing frame side plate and a second adjustable side wing frame side plate that are symmetrically arranged, the first circular tube, the second circular tube, the first adjustable side wing frame side plate and the second adjustable side wing frame side plate are welded together, the side wing plastic component mounting plate is welded to the first adjustable side wing frame side plate and the second adjustable side wing frame side plate and is located above the first circular tube, and the middle portion of the second circular tube is welded to one end of the slider linkage plate;

[0014] The other end of the slider linkage plate is provided with a through hole for connecting with the motor drive assembly, and a bushing is installed in the through hole. The middle parts of the first adjustable side wing frame side plate and the second adjustable side wing frame side plate are provided with a connecting hole, and a bushing is installed in the connecting hole. A limiting piece is installed in the bushing. The first adjustable side wing frame side plate and the second adjustable side wing frame side plate are connected together with the limiting guide plate through the limiting piece, and the limiting guide plate is welded to the cover plate of the side wing adjustment assembly.

[0015] Preferably, the motor drive assembly includes a screw motor and a slider, the screw motor is installed on the flank adjustment assembly cover plate, the screw of the screw motor is threadedly connected to one end of the slider, and the other end of the slider is connected to the slider linkage plate through a slider nut; when the screw motor is started, the screw rotates to drive the slider to move linearly, and the slider linkage plate drives the flank plastic part mounting plate to move through the support frame, and the limit part moves up and down in the waist-shaped hole of the limit guide plate during movement.

[0016] Preferably, the screw motor is connected to the wing adjustment assembly cover plate via two motor mounting screws, and the screw motor is located on a side away from the backrest side beam, and the screw motor is provided with a wiring harness and a quick-plug box connected to a control system.

[0017] Preferably, the free end of the screw of the screw motor is rotatably connected to a screw bracket, and the screw bracket is welded to the inner side surface of the backrest side beam.

[0018] Preferably, a car seat is equipped with a modular seat electric wing adjustment mechanism as described in any one of the above items.

[0019] Compared with the prior art, the beneficial technical effects of the present invention are:

[0020] The present invention discloses a modular electric wing adjustment mechanism for a seat, comprising symmetrically arranged left and right electric wing adjustment mechanisms, each set of electric wing adjustment mechanisms comprising a support backrest side beam assembly, a wing adjustment assembly and a motor drive assembly; wherein the backrest side beam assembly comprises a backrest side beam, an overlapping upper bracket and an overlapping lower bracket, the wing adjustment assembly comprises a support frame and a wing plastic component mounting plate, the support frame is formed into an integrated structure by welding two adjustable wing frame side plates and two round tubes; the motor drive assembly comprises a screw motor and a slider, the screw of the screw motor is connected to a slider linkage plate through the slider; during adjustment, when the screw motor is started, the screw rotates to drive the slider to move linearly, and the slider linkage plate drives the wing plastic component mounting plate to move through the support frame to complete the adjustment operation of the wing, and when moving, the limit member moves up and down in the waist-shaped hole of the limit guide plate.

[0021] In general, the mechanism of the present invention adopts a modular design, has strong versatility, is easy to disassemble and assemble, and adopts an electric mechanical adjustment method. Compared with the common pneumatic adjustment in the prior art, the adjustment range is larger; the function of directly switching the car seat back or seat cushion side wings between the normal state and the child seat state is realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] Figure 1 It is a schematic diagram of the electric wing adjustment mechanism of the modular seat of the present invention;

[0024] Figure 2 It is a structural schematic diagram of the left electric wing adjustment mechanism of the present invention;

[0025] Figure 3 This is a schematic diagram of the structure of the wing adjustment assembly of the present invention;

[0026] Figure 4 This is a schematic diagram of the installation of the wing adjustment assembly of the present invention - front view;

[0027] Figure 5 This is a schematic diagram of the installation of the wing adjustment assembly of the present invention - back side;

[0028] Figure 6 This is a schematic diagram of the structure of the backrest side beam assembly of the present invention;

[0029] Figure 7 This is a schematic diagram of the installation of the wing adjustment module of the present invention;

[0030] Figure 8 It is a schematic diagram of the movement of the modular electric seat wing adjustment mechanism of the present invention;

[0031] Explanation of reference numerals: 1. backrest side beam; 2. overlap upper bracket; 3. overlap lower bracket; 4. wing adjustment assembly cover plate; 5. screw motor; 6. slider; 7. screw bracket; 8. slider linkage plate; 9. adjustable wing frame side plate; 9-1. connecting hole; 10. round tube; 11. wing plastic component mounting plate; 12. pressure rivet bolt; 13. nut; 14. motor mounting screw; 15. slider nut; 16. limit guide plate; 17. limit member;

[0032] 9-a, first adjustable side wing frame side plate; 9-b, second adjustable side wing frame side plate; 10-a, first round tube; 10-b, second round tube; 12-a, first self-clinching bolt; 12-b, second self-clinching bolt; 12-c, third self-clinching bolt; 12-d, fourth self-clinching bolt; 13-a, first nut; 13-b, second nut; 13-c, third nut; 13-d, fourth nut. DETAILED DESCRIPTION

[0033] like Figure 1-8 As shown, a modular seat electric wing adjustment mechanism includes symmetrically arranged left and right electric wing adjustment mechanisms, each group of the electric wing adjustment mechanisms includes a supporting backrest side beam assembly, a wing adjustment assembly and a motor drive assembly, the backrest side beam assembly is installed on both sides of the seat back, the overlap is at a specified position of the backrest side beam assembly, and the wing adjustment assembly is connected to the motor drive assembly through a slider linkage plate 8.

[0034] like Figure 6 As shown, the backrest side beam assembly includes a backrest side beam 1, an overlapping upper bracket 2 and an overlapping lower bracket 3, the overlapping upper bracket 2 and the overlapping lower bracket 3 are arranged in parallel on the inner side of the backrest side beam 1 and are welded to the backrest side beam 1, a plurality of mounting through holes are provided on the overlapping upper bracket 2 and the overlapping lower bracket 3, and a side wing adjustment assembly cover plate 4 is connected to the overlapping upper bracket 2 and the overlapping lower bracket 3.

[0035] Specifically, the overlapping upper bracket 2 is provided with four mounting through holes and arranged at equal intervals, the overlapping lower bracket 3 is provided with three mounting through holes and arranged at equal intervals, and the mounting through holes are connected with rivet bolts 12. After the two side edges of the wing adjustment component cover plate 4 are overlapped on the overlapping upper bracket 2 and the overlapping lower bracket 3, they are positioned through the rivet bolts 12 and locked by nuts 13.

[0036] In one embodiment, the wing adjustment component cover plate 4 is penetrated by the first rivet bolt 12-a and the second rivet bolt 12-b and then tightened and fixed by the first nut 13-a and the second nut 13-b to one side of the lapped upper bracket 2, and the wing adjustment component cover plate 4 is penetrated by the third rivet bolt 12-c and the fourth rivet bolt 12-d and then tightened and fixed by the third nut 13-c and the fourth nut 13-d to one side of the lapped lower bracket 3. When the wing adjustment component cover plate 4 overlaps the lapped upper bracket 2 and the lapped lower bracket 3, the positions of the rivet bolts and nuts can be adjusted as needed.

[0037] like Figure 3-5 As shown, the wing adjustment assembly includes a support frame and a wing plastic part mounting plate 11, the support frame includes two adjustable wing frame side plates 9 and two round tubes 10, the round tubes 10 and the adjustable wing frame side plates 9 are welded and combined into a square closed support frame, the wing plastic part mounting plate 11 is welded to the support frame, and the wing plastic part or foam can be installed on the wing plastic part mounting plate 11.

[0038] like Figure 2 , 7As shown, the circular tube 10 includes a first circular tube 10-a on the outer side and a second circular tube 10-b on the inner side, the first circular tube 10-a and the second circular tube 10-b are arranged in parallel, the adjustable side wing frame side panel 9 includes a first adjustable side wing frame side panel 9-a and a second adjustable side wing frame side panel 9-b arranged symmetrically, the first circular tube 10-a, the second circular tube 10-b, the first adjustable side wing frame side panel 9-a and the second adjustable side wing frame side panel 9-b are welded together, the side wing plastic part mounting plate 11 is welded on the first adjustable side wing frame side panel 9-a and the second adjustable side wing frame side panel 9-b and is located above the first circular tube 10-a, and the middle part of the second circular tube 10-b is connected to the side wing frame 11. One end of the slider linkage plate 8 is welded and connected; the other end of the slider linkage plate 8 is provided with a through hole for connecting with the motor drive assembly, and a bushing is installed in the through hole. The installation of the bushing can enhance the strength of the hole and extend its service life. A connecting hole 9-1 is provided in the middle of the first adjustable side wing frame side plate 9-a and the second adjustable side wing frame side plate 9-b, and a bushing is installed in the connecting hole 9-1. A limiting member 17 is installed in the bushing. The first adjustable side wing frame side plate 9-a and the second adjustable side wing frame side plate 9-b are connected together with the limiting guide plate 16 through the limiting member 17, and the limiting guide plate 16 is welded to the side wing adjustment assembly cover plate 4.

[0039] like Figure 2 , 4 As shown in Figure 5, the motor drive assembly includes a screw motor 5 and a slider 6. The screw motor 5 is installed on the wing adjustment assembly cover plate 4. The screw of the screw motor 5 is threadedly connected to one end of the slider 6, and the other end of the slider 6 is connected to the slider linkage plate 8 through a slider nut 15. When the screw motor 5 is started, the screw rotates to drive the slider 6 to move in a straight line, and the slider linkage plate 8 drives the wing plastic component mounting plate 11 to move through the support frame. When moving, the limit member 17 moves up and down in the waist-shaped hole of the limit guide plate 16.

[0040] Specifically, the screw motor 5 is connected to the wing adjustment assembly cover plate 4 through two motor mounting screws 14, and the screw motor 5 is located on a side away from the backrest side beam 1. The screw motor 5 is provided with a wiring harness and a quick-insert box connected to the control system. The free end of the screw of the screw motor 5 is rotatably connected to the screw bracket 7, and the screw bracket 7 is welded to the inner side of the backrest side beam 1.

[0041] A car seat is equipped with a modular seat electric wing adjustment mechanism as described in any one of the above items. The modular design is convenient and quick to install and disassemble, the motor drive has a large adjustment range, and the applicability is stronger.

[0042] The regulation process of the present invention is as follows:

[0043] like Figure 8 As shown, in the initial state, the side wing is in a fully open state, and the slider 6 is close to one side of the screw motor; when adjusting, press the corresponding control button to drive the screw motor 5, and the screw rotates to drive the threaded slider 6 to move outward, and the support frame and the upper side wing plastic part mounting plate 11 are driven to move through the block linkage plate 8. When moving, the limit member 17 slides in the waist-shaped hole of the limit guide plate 16, thereby achieving the function of side wing adjustment.

[0044] 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 modular seat electric wing adjustment mechanism, comprising symmetrically arranged left and right electric wing adjustment mechanisms, characterized in that: Each set of the electric wing adjustment mechanism comprises a backrest side beam assembly for support, a wing adjustment assembly and a motor drive assembly, wherein the backrest side beam assembly is installed on both sides of the seat back, and the wing adjustment assembly is connected to the motor drive assembly through a slider linkage plate; The backrest side beam assembly comprises a backrest side beam, an overlapping upper bracket and an overlapping lower bracket, wherein the overlapping upper bracket and the overlapping lower bracket are arranged in parallel on the inner side of the backrest side beam and are welded to the backrest side beam, and the overlapping upper bracket and the overlapping lower bracket are both provided with a plurality of mounting through holes, and the overlapping upper bracket and the overlapping lower bracket are connected with a wing adjustment assembly cover plate; The overlapping upper bracket is provided with four mounting through holes and arranged at equal intervals, the overlapping lower bracket is provided with three mounting through holes and arranged at equal intervals, and the mounting through holes are connected with rivet bolts, and the two side edges of the wing adjustment component cover plate are overlapped on the overlapping upper bracket and the overlapping lower bracket, and are positioned by rivet bolts and locked by nuts; The wing adjustment assembly includes a support frame and a wing plastic component mounting plate, the support frame includes two adjustable wing frame side plates and two round tubes, the round tubes and the adjustable wing frame side plates are welded to form a square closed support frame, and the wing plastic component mounting plate is welded to the support frame; The circular tube includes a first circular tube on the outer side and a second circular tube on the inner side, the first circular tube and the second circular tube are arranged in parallel, the adjustable side wing frame side plate includes a first adjustable side wing frame side plate and a second adjustable side wing frame side plate that are symmetrically arranged, the first circular tube, the second circular tube, the first adjustable side wing frame side plate and the second adjustable side wing frame side plate are welded together, the side wing plastic component mounting plate is welded to the first adjustable side wing frame side plate and the second adjustable side wing frame side plate and is located above the first circular tube, and the middle portion of the second circular tube is welded to one end of the slider linkage plate; The other end of the slider linkage plate is provided with a through hole for connecting with the motor drive assembly, and a bushing is installed in the through hole. The middle parts of the first adjustable side wing frame side plate and the second adjustable side wing frame side plate are provided with a connecting hole, and a bushing is installed in the connecting hole. A limiting piece is installed in the bushing. The first adjustable side wing frame side plate and the second adjustable side wing frame side plate are connected together with the limiting guide plate through the limiting piece, and the limiting guide plate is welded to the cover plate of the side wing adjustment assembly.

2. The modular seat electric wing adjustment mechanism according to claim 1, characterized in that: The side wing adjustment component cover plate and one side of the overlapping upper bracket are penetrated by the first and second self-clinching bolts and then tightened and fixed by the first and second nuts. The side wing adjustment component cover plate and one side of the overlapping lower bracket are penetrated by the third and fourth self-clinching bolts and then tightened and fixed by the third and fourth nuts.

3. The modular seat electric wing adjustment mechanism according to claim 1, characterized in that: The motor drive assembly includes a screw motor and a slider, the screw motor is mounted on the wing adjustment assembly cover plate, the screw of the screw motor is threadedly connected to one end of the slider, and the other end of the slider is connected to the slider linkage plate through a slider nut; when the screw motor is started, the screw rotates to drive the slider to move linearly, and the slider linkage plate drives the wing plastic component mounting plate to move through the support frame, and the limit member moves up and down in the waist-shaped hole of the limit guide plate during movement.

4. The modular seat electric wing adjustment mechanism according to claim 3, characterized in that: The screw motor is connected to the wing adjustment component cover plate through two motor mounting screws, and the screw motor is located on a side away from the backrest side beam. The screw motor is provided with a wiring harness and a quick-insert box connected to a control system.

5. The modular seat electric wing adjustment mechanism according to claim 3, characterized in that: The free end of the screw of the screw motor is rotatably connected to a screw bracket, and the screw bracket is welded to the inner side surface of the backrest side beam.

6. A car seat, characterized in that: A modular seat electric wing adjustment mechanism as described in any one of claims 1 to 5 is installed.

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