WO2023109028A1 - 座椅倾角调节机构以及汽车零压座椅 - Google Patents

座椅倾角调节机构以及汽车零压座椅 Download PDF

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Publication number
WO2023109028A1
WO2023109028A1 PCT/CN2022/096718 CN2022096718W WO2023109028A1 WO 2023109028 A1 WO2023109028 A1 WO 2023109028A1 CN 2022096718 W CN2022096718 W CN 2022096718W WO 2023109028 A1 WO2023109028 A1 WO 2023109028A1
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WIPO (PCT)
Prior art keywords
connecting rod
seat
link
connecting rods
hole
Prior art date
Application number
PCT/CN2022/096718
Other languages
English (en)
French (fr)
Inventor
兰顺强
陈岳云
张武
蒋小菡
蔡廷勇
Original Assignee
延锋国际汽车技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 延锋国际汽车技术有限公司 filed Critical 延锋国际汽车技术有限公司
Priority to EP22905794.8A priority Critical patent/EP4393770A1/en
Publication of WO2023109028A1 publication Critical patent/WO2023109028A1/zh

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/16Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
    • B60N2/18Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable the front or the rear portion of the seat being adjustable, e.g. independently of each other
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/0224Non-manual adjustments, e.g. with electrical operation
    • B60N2/02246Electric motors therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/0224Non-manual adjustments, e.g. with electrical operation
    • B60N2/02246Electric motors therefor
    • B60N2/02253Electric motors therefor characterised by the transmission between the electric motor and the seat or seat parts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/10Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable tiltable
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/16Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
    • B60N2/1605Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable characterised by the cinematic
    • B60N2/161Rods
    • B60N2/1615Parallelogram-like structure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/16Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
    • B60N2/18Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable the front or the rear portion of the seat being adjustable, e.g. independently of each other
    • B60N2/185Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable the front or the rear portion of the seat being adjustable, e.g. independently of each other characterised by the drive mechanism
    • B60N2/1864Gear wheel driven mechanism
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy

Definitions

  • the invention relates to the technical field of car seats, in particular to a seat tilt adjustment mechanism and a car seat including the seat tilt adjustment mechanism, especially a zero-pressure seat.
  • the zero-pressure car seat is a seat structure that can achieve better comfort, allowing the occupant to have a larger backrest angle and thigh support angle. But at the same time, when the vehicle is running, under the zero-gravity attitude, based on the existing restraint system, it cannot form effective protection for the occupant.
  • the zero pressure seat of the car can receive the SCM (safety control module) signal of the whole car before the risk of collision occurs. Therefore, in a very short period of time (for example, 200ms to 500ms), it is necessary to move the seat from a zero-gravity posture (such as torso60°, that is, the upper torso of the occupant or dummy lying on the seat or the seat back relative to The angle of the vertical position is 60°) adjusted to meet the posture of the occupant protection and restraint system (such as torso 40°, that is, the upper torso of the occupant or dummy lying on the seat or the position of the seat back relative to the vertical position The angle is 40°) to ensure the safety of the occupants in the zero-gravity posture during vehicle driving, so as to meet the better comfort and safety in L4/L5 automatic driving scenarios.
  • a zero-gravity posture such as torso60°, that is, the upper torso of the occupant or dummy lying on the seat or the seat
  • the switch between the zero-gravity attitude and the normal attitude of the automobile zero-pressure seat is mainly realized by adjusting the inclination angle of the seat cushion through the inclination adjustment mechanism.
  • the reclining adjustment mechanism of the existing automotive zero-pressure seat has the problem of limited reclining stroke.
  • One of the technical problems to be solved by the present invention is to provide a seat reclining adjustment mechanism for the deficiencies of the prior art.
  • the second technical problem to be solved by the present invention is to provide a car seat, especially a zero-pressure seat, which includes the above-mentioned seat tilt adjustment mechanism.
  • a seat reclining mechanism as a first aspect of the present invention includes:
  • the left and right base connecting rods fixedly installed on the left and right connecting rods of the seat frame assembly;
  • Left and right tilting adjustment links the lower ends of the left and right tilting adjustment links are hinged on the front ends of the left and right base links;
  • Left and right front connecting rods the upper ends of the left and right front connecting rods are hinged on the front ends of the left and right connecting rods of the seat cushion frame assembly;
  • a transverse link the left end of the transverse link forms a rotational connection with the upper end of the left tilt adjustment link and the lower end of the left front link respectively, and the right end of the transverse link is respectively connected with the right tilt adjustment link
  • the upper end of the upper end and the lower end of the said right front link form a rotational connection
  • a drive motor mechanism which can drive the left tilt adjustment link and the right tilt adjustment link to rotate synchronously through a rack and pinion structure, thereby adjusting the inclination angle of the seat cushion.
  • the rack and pinion structure includes left and right driving gears and left and right arc-shaped racks that mesh with each other, wherein the left and right driving gears and the left and right arc-shaped racks One is arranged on the left and right tilting adjustment connecting rods, and the other of the left and right driving gears and the left and right arc racks is arranged on the left and right base connecting rods.
  • the drive motor mechanism includes left and right drive motor assemblies, and the left and right drive motor assemblies are fixedly installed on the inner side surfaces of the left and right base connecting rods;
  • the left and right drive gears are fixedly installed on the output ends of the left and right drive motor assemblies, and the left and right arc-shaped racks are integrated in the left and right tilting adjustment connecting rods.
  • the left and right tilting adjustment links constitute the left and right toothed plate connecting rods, and the left and right toothed plate connecting rods are formed with left and right arc-shaped toothed holes.
  • the left and right drive gears are located in the left and right arc-shaped toothed channels of the left and right tooth plate connecting rods and mesh with the left and right arc-shaped toothed channels.
  • the left and right drive gears are driven to rotate through the left and right drive motor assemblies, and the left and right drive gears are controlled under the guidance of the left and right arc-shaped toothed channels Describe the rotation angle of the left and right gear plate connecting rods. This makes it possible to adjust the inclination of the seat cushion and, in relation to the inclination of the seat cushion, the inclination of the seat back.
  • the connecting rods of the left and right gear plates both include:
  • An inner connecting rod is formed with the left arc-shaped tooth-shaped hole or the right arc-shaped tooth-shaped hole, and the upper end of the inner connecting rod is provided with an inner side for being sleeved on the left end or the right end of the transverse connecting rod.
  • a first installation hole such as a connecting screw hole, is opened on one side of the left arc-shaped tooth-shaped channel or the right arc-shaped tooth-shaped channel of the inner connecting rod;
  • An outer connecting rod the outer connecting rod is fixedly arranged on the outer surface of the inner connecting rod, and a gap is formed between the inner connecting rod and the outer connecting rod, and the upper end of the outer connecting rod is provided with a
  • the hole is coaxial, and is used to sleeve the outer rotation through hole on the left end or the right end of the transverse connecting rod.
  • Mounting holes such as connection through-holes;
  • a base through hole is opened on the front end of the left base link or the right base link.
  • the front end of the left base link or the right base link enters the gap formed between the inner link and the outer link; and adjusts the inner
  • the connecting screw hole of the connecting rod, the connecting through hole of the outer connecting rod and the base through hole of the left base connecting rod or the right base connecting rod are in the coaxial position; hole, the base through hole and the connecting screw hole and tightened in the connecting screw hole, so that the left tooth plate connecting rod or the right tooth plate connecting rod can surround the first step bolt relative to the left base connecting rod or the right
  • the base link rotates.
  • the first stepped bolt constitutes an exemplary rotating shaft. It goes without saying that other forms of hinges are also possible.
  • a first bush that is in rotational contact with the rotating shaft, such as the first stepped bolt, is sleeved in the through hole of the base of the left or right base connecting rod.
  • the left and right gear plate connecting rods further include a second bushing and a first Y-direction washer
  • the second bushing is sleeved on the left end or the right end of the transverse connecting rod
  • the inner and outer ends of the second bush pass through the inner turning through hole of the inner connecting rod and the outer turning through hole of the outer connecting rod
  • the inner and outer ends of the second bushing are formed with
  • the inner and outer radial flanges protrude outward
  • the first Y-direction washer is sleeved on the second bushing and located between the inner connecting rod and the outer connecting rod.
  • a Y-directional washer is a washer having a center axis extending in the Y-direction or in the transverse direction in the vehicle coordinate system.
  • the left and right gear plate connecting rods further include connecting rivets and second Y-direction washers, and the inner and outer ends of the connecting rivets pass through the inner sides of the inner connecting rods.
  • the rivet through hole and the outer rivet through hole opened on the outer connecting rod are extruded into riveting points.
  • the second Y-direction washer is sleeved on the connecting rivet and is located between the inner connecting rod and the outer connecting rod. between the poles.
  • the connecting rods of the left and right gear plates further include connecting nuts, the connecting nuts are fixedly welded on the inner surface of the inner connecting rods and coaxial with the connecting screw holes,
  • the connecting nut is formed with an accommodating chamber for accommodating the front end of the first stepped bolt, the inner surface of the connecting nut abuts against the motor mounting plate of the left drive motor assembly or the right drive motor assembly,
  • the second stepped bolt passes through the through hole on the motor mounting plate and is screwed into the connecting nut, so that the left tooth plate connecting rod or the right tooth plate connecting rod can surround the second stepped bolt relative to the motor mounting plate Make a turn.
  • a third bush that is in rotational contact with the second stepped bolt is inserted in the through hole of the motor mounting plate.
  • the left and right tooth plate connecting rods further include reinforcing tooth plates, the reinforcing tooth plates are fixedly mounted on the inner side of the inner connecting rod, and the reinforcing tooth plates are formed with The same reinforced arc-shaped tooth-shaped hole as the left arc-shaped tooth-shaped hole or the right arc-shaped tooth-shaped hole.
  • the lower ends of the left and right front connecting rods are provided with rotation through holes for being sleeved on the left and right ends of the transverse connecting rods.
  • the transverse connecting rod is a hollow pipe, and a torsion spring for quick reset of the seat cushion frame assembly is installed in the transverse connecting rod.
  • the torsion spring includes a first torsion bar and a second torsion bar, the left end of the first torsion bar extends from the transverse link, and the right end of the first torsion bar is The transverse link is held by the transverse link, the right end of the second torsion bar extends out of the transverse link, the left end of the second torsion bar is held by the transverse link in the transverse link, and the first torsion bar
  • the left end of the bar and the right end of the second torsion bar can be manipulated by the left and right front links and/or the left and right tilt adjustment links when the inclination angle of the seat cushion increases, and thereby the first torsion bar and the The second torsion bar is tensioned.
  • the torsion spring includes a first torsion bar and a second torsion bar, and left, Right Shentai Department.
  • the first torsion bar is located inside the transverse link, the left end of the first torsion bar extends out of the transverse link and is formed as a left outer hook and is preferably centered by a left torsion spring
  • the right end of the first torsion bar is formed as a right inner hook and hooked on the right countertop of the transverse link
  • the second torsion bar is located in the transverse link , the left end of the second torsion bar is formed as a left inner hook and hooked on the left countertop of the transverse link, and the right end of the second torsion bar extends out of the transverse link and is formed as a right outer snap hook, and is preferably positioned by the right torsion spring centering plastic.
  • left and right front link hooks are provided at the lower ends of the left and right front links
  • left and right outer links are provided at the upper ends of the outer links of the left and right gear plate links. hook part.
  • the left outer hook of the first torsion bar and the right outer hook of the second torsion bar are hooked on the left and right front link hooks of the left and right front links respectively. part, so that the torsion spring is in a pre-tensioned state. At this time, the left outer hook of the first torsion bar and the right outer hook of the second torsion bar do not contact the left and right outer link hooks of the outer links of the left and right gear plate links.
  • the hooks of the left and right outer connecting rods hook the left outer hooks of the first torsion bar and the right outer hooks of the second torsion bar. hooks, so that the left outer hook of the first torsion bar and the right outer hook of the second torsion bar are separated from the hooks of the left and right front connecting rods, so that the torsion spring generates a larger torque.
  • left and right Y-direction limiting pieces are provided on the transverse connecting rod near its left and right ends.
  • the drive motor mechanism includes left and right drive motor assemblies, and the left and right drive motor assemblies are fixedly installed on the inner side surfaces of the left and right tilt adjustment links, And the output ends pass through the left and right shaft holes on the left and right tilting adjustment connecting rods and are exposed on the outer surfaces of the left and right tilting adjustment connecting rods.
  • the rack and pinion structure includes left and right drive gears and left and right arc-shaped racks, and the left and right drive gears are fixedly installed on the output ends of the left and right drive motor assemblies, One end of the left and right arc-shaped racks is hinged on the front end of the left and right base connecting rods and is located at the front side of the left and right tilting adjustment connecting rods, and the left, right
  • the right arc rack is always in engagement with the left and right drive gears; when the drive motor mechanism is working, the left and right drive gears are driven to rotate by the left and right drive motor assemblies, and the left and right drive gears are rotated. Under the guidance of the left and right drive gears by the arc-shaped rack, the rotation angle of the left and right tilt adjustment connecting rods is controlled.
  • the drive motor mechanism further includes a synchronous rod, the synchronous rod is located between the left and right drive motor assemblies, and the left and right ends of the synchronous rod pass through the left , in the right drive motor assembly and connected with the output ends of the left and right drive motor assemblies, so as to ensure the synchronization of the left and right drive motor assemblies.
  • the seat reclining mechanism further includes a connecting elbow, the connecting elbow is located between the left and right tilting adjustment links, and the left and right ends of the connecting elbow It is connected to the inner surface of the left and right tilting adjustment connecting rods.
  • the stopper part is arranged on the left and right tilt adjustment connecting rods, and forms a left and right rack limiting gap between itself and the left and right drive gears .
  • the stopper component includes left and right stopper bolts, and the left and right stopper bolts are installed on the outer surfaces of the left and right tilt adjustment links, and the left 1.
  • the left and right rack limit gaps are formed between the right stop bolt and the left and right drive gears, and the left and right arc-shaped racks are always located in the limit gaps of the left and right racks during rotation. inside, so that the left and right drive gears are always in mesh with the protruding teeth formed on the inner arc surfaces of the left and right arc racks.
  • the stop member includes left and right stop bolts and left and right anti-backlash bushings, and the left and right anti-backlash bushes are fixed by the left and right stop bolts Installed on the outer surface of the left and right tilt adjustment connecting rods, the left and right rack limit gaps are formed between the left and right anti-backlash bushes and the left and right drive gears, and the left and right The right arc rack is always located in the limit gap of the left and right racks during the rotation, so that the left and right drive gears are always in contact with the convex holes formed on the inner arc surfaces of the left and right arc racks. tooth meshing.
  • a car seat especially a zero-pressure seat, includes a seat frame assembly, a seat cushion frame assembly, a seat cushion assembly, and any embodiment of the present invention.
  • An inclination adjustment mechanism the seat cushion frame assembly is installed on the seat frame assembly, the seat cushion assembly is covered on the outer circumference of the seat cushion frame assembly, and the inclination adjustment The mechanism is arranged between the seat frame assembly and the seat cushion frame assembly, and is used for adjusting the inclination angle of the seat cushion frame assembly relative to the seat frame assembly.
  • the present invention adjusts the inclination angle of the seat cushion by driving the left and right inclination adjustment connecting rods to rotate, thereby effectively improving the height adjustment stroke of the inclination angle of the seat cushion;
  • the present invention adopts the structure of double-sided driving motors and tooth plates, and the locking strength of the driving motor mechanism is high, so that the seat inclination adjustment mechanism can be applied to ABTS seats;
  • the drive motor of the present invention can be fixed, which effectively saves the sweeping space caused by the drive motor follow-up;
  • the present invention occupies less space
  • the toothed plate structure of the present invention is assisted by a torsion spring, which can realize the rapid reset of the seat cushion and better protect the safety of the occupants;
  • the present invention can effectively realize the adjustment of the gap through the stopper parts, avoiding the possibility of abnormal noise.
  • Fig. 1 is a structural schematic view of the first embodiment of the zero-pressure automotive seat of the present invention when it is in the normal position of the seat cushion inclination angle.
  • Fig. 2 is a structural schematic view of the first embodiment of the zero-pressure automotive seat of the present invention when it is at the maximum position of the inclination angle of the seat cushion.
  • Fig. 3 is a structural schematic view of the first embodiment of the zero-pressure automotive seat of the present invention when it is in the normal position of the seat cushion inclination (the seat cushion assembly is omitted).
  • Fig. 4 is a structural schematic view of the first embodiment of the zero-pressure automotive seat of the present invention when it is at the maximum position of the inclination angle of the seat cushion (the seat cushion assembly is omitted).
  • Fig. 5 is an assembly diagram of the seat frame assembly, the seat cushion assembly and the reclining mechanism of the first embodiment of the zero-pressure automotive seat of the present invention.
  • FIG. 6 is a schematic diagram of an exploded structure of FIG. 5 .
  • Fig. 7 is a schematic structural view of the seat reclining adjustment mechanism according to the first embodiment of the present invention.
  • Fig. 8 is a schematic diagram of an exploded structure of the seat reclining adjustment mechanism according to the first embodiment of the present invention.
  • Fig. 9 is a schematic diagram of the exploded structure of the left and right gear plate connecting rods according to the first embodiment of the present invention.
  • Fig. 10 is a schematic structural view of the left and right drive motor assemblies of the first embodiment of the present invention.
  • Fig. 11 is a cross-sectional view of the connection between the left and right gear plate links and the left and right base links of the first embodiment of the present invention.
  • FIG. 12 is a cross-sectional view of the connection between the left and right gear plates, the left and right front links and the transverse links of the first embodiment of the present invention.
  • Fig. 13 is a structural schematic view of the seat reclining adjustment mechanism in the first embodiment of the present invention when it is in the normal position of the seat cushion reclining angle.
  • Fig. 14 is a partially enlarged schematic diagram of cooperation between the torsion spring and the left and right front connecting rods and the left and right tooth plate connecting rods in Fig. 13 .
  • Fig. 15 is a structural schematic diagram of the seat reclining adjustment mechanism in the first embodiment of the present invention when it is in the middle position of the seat cushion reclining angle.
  • Fig. 16 is a partially enlarged schematic diagram of cooperation between the torsion spring and the left and right front connecting rods and the left and right tooth plate connecting rods in Fig. 15 .
  • Fig. 17 is a structural schematic view of the seat reclining adjustment mechanism of the first embodiment of the present invention when it is at the maximum position of the seat cushion reclining angle.
  • Fig. 18 is a partially enlarged schematic diagram of cooperation between the torsion spring and the left and right front connecting rods and the left and right tooth plate connecting rods in Fig. 17 .
  • Fig. 19 is a three-dimensional structural schematic view of the seat reclining adjustment mechanism in the first embodiment of the present invention when it is in the normal position of the seat cushion reclining angle.
  • Fig. 20 is a side view of the seat reclining adjustment mechanism of the first embodiment of the present invention when it is in the normal position of the seat cushion reclining angle.
  • Fig. 21 is a schematic diagram of the simple connections of the connecting rods when the seat reclining adjustment mechanism of the first embodiment of the present invention is in the normal position of the seat cushion reclining angle.
  • Fig. 22 is a three-dimensional structural schematic diagram of the seat reclining adjustment mechanism in the first embodiment of the present invention when it is at the maximum position of the seat cushion reclining angle.
  • Fig. 23 is a side view of the seat reclining adjustment mechanism of the first embodiment of the present invention when it is at the maximum position of the seat cushion reclining angle.
  • Fig. 24 is a schematic diagram of the simple connection of each connecting rod when the seat reclining adjustment mechanism of the first embodiment of the present invention is at the maximum position of the seat cushion reclining angle.
  • Fig. 25 is a three-dimensional schematic diagram of the seat reclining adjustment mechanism of the car seat according to the second embodiment of the present invention when it is in the normal position of the seat cushion inclination.
  • Fig. 26 is a three-dimensional structural schematic view of the seat reclining adjustment mechanism of the second embodiment of the present invention when it is at the maximum position of the seat cushion reclining angle.
  • Fig. 27 is a schematic diagram of an exploded structure of the seat reclining adjustment mechanism according to the second embodiment of the present invention.
  • Fig. 28 is a schematic diagram of cooperation between the driving motor mechanism and the rack and pinion structure of the seat reclining adjustment mechanism according to the second embodiment of the present invention.
  • FIG. 29 is a schematic diagram of the exploded structure of FIG. 28 .
  • Fig. 30 is a structural schematic diagram of the driving motor mechanism of the seat reclining adjustment mechanism according to the second embodiment of the present invention.
  • Fig. 31 is a partially enlarged schematic view of an embodiment of the catch point of the rack and pinion structure of the seat reclining adjustment mechanism according to the second embodiment of the present invention.
  • Fig. 32 is a partially enlarged schematic diagram of another embodiment at the stop position of the rack and pinion structure of the seat reclining adjustment mechanism according to the second embodiment of the present invention.
  • Fig. 33 is a cross-sectional view at the blocking point of Fig. 32 .
  • Fig. 34 is a partially enlarged schematic view of yet another embodiment at the stop point position of the rack and pinion structure of the seat reclining adjustment mechanism according to the second embodiment of the present invention.
  • Fig. 35 is a cross-sectional view at the blocking point of Fig. 34 .
  • Fig. 36 is a side view of the seat reclining adjustment mechanism of the second embodiment of the present invention when it is in the normal position of the seat cushion reclining angle.
  • Fig. 37 is a schematic diagram of the simple connections of the connecting rods when the seat reclining adjustment mechanism of the second embodiment of the present invention is in the normal position of the seat cushion reclining angle.
  • Fig. 38 is a side view of the seat reclining adjustment mechanism of the second embodiment of the present invention when it is at the maximum position of the seat cushion reclining angle.
  • Fig. 39 is a schematic diagram of the simple connections of the various connecting rods when the seat reclining adjustment mechanism of the second embodiment of the present invention is at the maximum position of the seat cushion reclining angle.
  • a car seat according to a first embodiment of the present invention which includes a seat reclining mechanism according to a first embodiment, will be described with reference to FIGS. 1 to 24 .
  • FIG. 1 to Fig. 5 show a car seat, especially a car zero-pressure seat or a zero-gravity seat.
  • the car seat includes a seat frame assembly 100 , a seat cushion frame assembly 200 , a seat cushion assembly 300 and a seat reclining mechanism 400 .
  • the seat cushion frame assembly 200 is installed on the seat frame assembly 100, the seat cushion assembly 300 is covered on the outer periphery of the seat cushion frame assembly 200, and the seat inclination adjustment mechanism 400 is arranged on the seat frame Between the assembly 100 and the seat cushion frame assembly 200, it is used to adjust the inclination angle of the seat cushion frame assembly 200 relative to the seat frame assembly 100, so that the seat cushion frame assembly 200 can Switch between the normal position (as shown in Figure 1 or Figure 3) and the maximum position of the inclination of the cushion (as shown in Figure 2, Figure 3 or Figure 5).
  • the seat reclining mechanism 400 includes left and right base links 410a, 410b, left and right tilting adjustment links 420a, 420b, left and right front links 440a, 440b, transverse links Rod 450 and drive motor mechanism.
  • the left and right base connecting rods 410a, 410b are fixedly mounted on the inner sides of the left and right connecting rods 110a, 110b of the seat frame assembly 100 .
  • the left and right tilt adjustment links 420a, 420b are rotatably disposed on the front ends of the left and right base links 410a, 410b.
  • the upper ends of the left and right front connecting rods 440a, 440b are hinged on the front ends of the left and right connecting rods 210a, 210b of the seat cushion frame assembly 200 .
  • the left end of the transverse link 450 forms a rotational connection with the left tilt adjustment link 420a and the lower end of the left front link 440a respectively
  • the right end of the transverse link 450 forms a rotation connection with the upper end of the right tilt adjustment link 420b and the lower end of the right front link 440b respectively.
  • the left end of the transverse link 450 passes through the upper end of the left tilt adjustment link 420a and the lower end of the left front link 440a to form a rotational connection
  • the right end of the transverse link 450 passes through the upper end of the right tilt adjustment link 420b and the right front end.
  • the lower end of the connecting rod 440b forms a rotational connection.
  • the drive motor mechanism can drive the left tilting adjustment link 420a and the right tilting adjustment link 420b to rotate synchronously through the rack and pinion structure, thereby adjusting the inclination angle of the seat cushion.
  • the driving motor mechanism can adopt a double-sided motor type, which includes left and right driving motor assemblies 430a, 430b, and the left and right driving motor assemblies 430a, 430b are fixedly installed on the inner surfaces of the left and right base connecting rods 410a, 410b superior.
  • the rack and pinion structure includes left and right drive gears 434a, 434b and left and right tooth plates, and the left and right drive gears 434a, 434b are fixedly installed on the output ends of the left and right drive motor assemblies 430a, 430b.
  • the plates are integrated into the left and right tilt adjustment links 420a, 420b and thus constitute left and right toothed plate links.
  • the left and right tooth plate connecting rods 420a, 420b are formed with left and right arc-shaped toothed holes 4211a, 4211b, and the left and right driving gears 434a, 434b on the left and right driving motor assemblies 430a, 430b are located on the left and right tooth plate connecting rods.
  • the left and right arc-shaped tooth-shaped holes 4211a, 4211b of the rods 420a, 420b are engaged with the left and right arc-shaped tooth-shaped holes 4211a, 4211b.
  • the left and right drive motor assemblies 430a, 430b drive the left and right drive gears 434a, 434b to rotate, and under the guidance of the left and right arc-shaped toothed holes 4211a, 4211b, control the left and right tooth plates The angle of rotation of the connecting rods 420a, 420b.
  • the left gear plate link 420a includes an inner link 421a and an outer link 422a.
  • a left arc-shaped tooth-shaped hole 4211a is formed in the inner connecting rod 421a, and an inner rotating through hole 4212a for being sleeved on the left end of the transverse connecting rod 450 is opened on the upper end of the inner connecting rod 421a.
  • One side of the hole 4211a is provided with a connecting screw hole 4213a.
  • the outer link 422a is fixedly disposed on the outer surface of the inner link 421a, and a gap is formed between the outer link and the inner link.
  • the upper end of the outer connecting rod 422a defines an outer rotating through hole 4221a which is coaxial with the inner rotating through hole 4212a and is used to be sleeved on the left end of the transverse connecting rod 450 .
  • a connecting through hole 4222a coaxial with the connecting screw hole 4213a is defined at the lower end of the outer connecting rod 422a.
  • a base through hole 411a is opened on the front end of the left base link 410a.
  • the front end of the left base link 410a enters the gap formed between the inner link 421a and the outer link 422a; adjust the connecting screw hole 4213a of the inner link 421a and the connecting through hole of the outer link 422a 4222a and the base through hole 411a of the left base link 410a, so that they are in a coaxial position; then, pass the stepped bolt 480a through the connecting through hole 4222a, the base through hole 411a and the connecting screw hole 4213a in sequence, and tighten the stepped bolt 480a In the connecting screw hole 4213a, the left gear plate connecting rod 420a can rotate around the stepped bolt 480a relative to the left base connecting rod 410a. In the base through hole 411a of the left base connecting rod 410a, a bushing 412a that forms rotational contact with the stepped bolt 480a is sleeved to ensure smooth rotation and avoid wear.
  • the right gear plate link 420b includes an inner link 421b and an outer link 422b.
  • the inner connecting rod 421b is formed with a right arc-shaped toothed hole 4211b, and the upper end of the inner connecting rod 421b is provided with an inner rotating through hole 4212b for being sleeved on the right end of the transverse connecting rod 450.
  • the right arc-shaped toothed hole of the inner connecting rod 421b A connecting screw hole 4213b is opened on one side of the 4211b.
  • the outer link 422b is fixedly disposed on the outer surface of the inner link 421b, and a gap is formed between the inner link and the outer link.
  • the upper end of the outer connecting rod 422b defines an outer rotating through hole 4221b which is coaxial with the inner rotating through hole 4212b and is used to be sleeved on the right end of the transverse connecting rod 450 .
  • a connecting through hole 4222b coaxial with the connecting screw hole 4213b is defined at the lower end of the outer connecting rod 422b.
  • a base through hole 411b is opened on the front end of the right base link 410b.
  • the front end of the right base link 410b enters the gap formed between the inner link 421b and the outer link 422b; adjust the connecting screw hole 4213b of the inner link 421b and the connecting through hole of the outer link 422b 4222b and the base through hole 411b of the right base link 410b, so that they are in a coaxial position; then, pass the step bolt 480b through the connection through hole 4222b, the base through hole 411b and the connection screw hole 4213b in sequence, and tighten the step bolt 480b
  • the right gear plate connecting rod 420b can rotate around the stepped bolt 480b relative to the right base connecting rod 410b.
  • a bushing 412b that forms rotational contact with the stepped bolt 480b is sleeved to ensure smooth rotation and avoid wear.
  • the left gear plate link 420a also includes a bushing 423a and a Y-direction washer 424a.
  • the bushing 423a is sleeved on the left end of the transverse connecting rod 450, and its inner and outer ends pass through the inner rotating through hole 4212a of the inner connecting rod 421a and the outer rotating through hole 4221a of the outer connecting rod 422a.
  • the inner and outer radial flanges 4231a, 4232a protruding outward are formed on the inner and outer ends of the bushing 423a, which are used to limit the inner connecting rod 421a and the outer connecting rod 422a, and the Y-direction gasket 424a is sleeved On the bushing 423a and between the inner connecting rod 421a and the outer connecting rod 422a, a certain gap is maintained between the inner connecting rod 421a and the outer connecting rod 422a.
  • the right gear plate link 420b also includes a bushing 423b and a Y-direction washer 424b.
  • the bushing 423b is sleeved on the right end of the transverse connecting rod 450, and its inner and outer ends pass through the inner rotating through hole 4212b of the inner connecting rod 421b and the outer rotating through hole 4221b of the outer connecting rod 422b.
  • On the inner and outer ends of the bushing 423b are formed outwardly protruding inner and outer radial flanges 4231b and 4232b for limiting the inner connecting rod 421b and the outer connecting rod 422b.
  • the Y-direction washer 424b is sleeved on the bushing 423b and located between the inner connecting rod 421b and the outer connecting rod 422b, so that a certain gap is maintained between the inner connecting rod 421b and the outer connecting rod 422b.
  • the left gear plate connecting rod 420a also includes a connecting rivet 425a and a Y-direction washer 426a.
  • the inner and outer ends of the connecting rivet 425a pass through the inner rivet through hole 4214a provided on the inner connecting rod 421a and the outer rivet through hole 4223a provided on the outer connecting rod 422a, and then are extruded into riveting points.
  • the Y-direction washer 426a is sleeved on the connecting rivet 425a and is located between the inner connecting rod 421a and the outer connecting rod 422a.
  • the inner connecting rod 421a and the outer connecting rod 422a are fixedly connected; on the other hand, the inner connecting rod 421a is connected to the outer connecting rod 422a.
  • the outer link 422a maintains a certain gap.
  • the right gear plate connecting rod 420b also includes a connecting rivet 425b and a Y-direction washer 426b.
  • the inner and outer ends of the connecting rivet 425b pass through the inner rivet through hole 4214b provided on the inner connecting rod 421b and the outer rivet through hole 4223b provided on the outer connecting rod 422b, and then extrude to form a riveting point.
  • the Y-direction washer 426b is sleeved on the connecting rivet 425b and is located between the inner connecting rod 421b and the outer connecting rod 422b.
  • the inner connecting rod 421b and the outer connecting rod 422b are fixedly connected; on the other hand, the inner connecting rod 421b is connected to the outer connecting rod 422b
  • the outer link 422b maintains a certain gap.
  • the left gear plate connecting rod 420a also includes a connecting nut 427a, which is fixedly welded on the inner side of the inner connecting rod 421a and coaxial with the connecting screw hole 4213a.
  • the connecting nut 427a is formed with an accommodating cavity for receiving the front end of the stepped bolt 480a, and the inner surface of the connecting nut 427a abuts against the left motor mounting plate 431a of the left driving motor assembly 430a.
  • the left gear plate connecting rod 420a can surround the stepped bolt 490a relative to the left drive motor
  • the left motor mounting plate 431a of the assembly 430a is rotated.
  • a bushing 4312a that forms rotational contact with the stepped bolt 490a is set to ensure smooth rotation and avoid wear.
  • the right gear plate connecting rod 420b further includes a connecting nut 427b, which is fixedly welded on the inner surface of the inner connecting rod 421b and coaxial with the connecting screw hole 4213b.
  • the connecting nut 427b is formed with an accommodating chamber for accommodating the front end of the stepped bolt 490b, and the inner surface of the connecting nut 427b abuts against the right motor mounting plate 431b of the right driving motor assembly 430b.
  • the right gear plate connecting rod 420b can surround the stepped bolt 490b relative to the right drive motor
  • the right motor mounting plate 431b of the assembly 430b is rotated.
  • a bushing 4312b that forms rotational contact with the stepped bolt 490b is sleeved to ensure smooth rotation and avoid wear.
  • the left tooth plate connecting rod 420a also includes a reinforcing tooth plate 428a, which is fixedly installed on the inner side surface of the inner connecting rod 421a through rivets or other fasteners, and the reinforcing tooth plate 428a is formed with a left arc-shaped tooth-shaped hole. 4211a also strengthens the arc-shaped tooth-shaped hole 4281a to improve the strength of the rack and pinion structure.
  • the right tooth plate connecting rod 420b also includes a reinforcing tooth plate 428b, which is fixedly installed on the inner side of the inner connecting rod 421b through rivets or other fasteners, and the reinforcing tooth plate 428b is formed with a right arc-shaped tooth-shaped hole.
  • 4211b has the same reinforced arc-shaped tooth-shaped hole 4281b to improve the strength of the rack and pinion structure.
  • the lower ends of the left and right front connecting rods 440 a and 440 b are provided with left and right front connecting rod rotation through holes 441 a and 441 b for being sleeved on the left and right ends of the transverse connecting rod 450 .
  • the left drive motor assembly 430a includes a left motor mounting plate 431a, a left drive motor 432a, a left reduction gear mechanism 433a and a left drive gear 434a.
  • the left motor mounting plate 431a is installed on the inner side surface of the left base connecting rod 410a through several motor mounting bolts 4311a, the left drive motor 432a is installed on the left motor mounting plate 431a, the left reduction gear mechanism 433a is installed on the left motor mounting plate 431a and Connected with the output shaft of the left drive motor 432a, the left drive gear 434a is installed on the output end of the left reduction gear mechanism 433a.
  • the right drive motor assembly 430b includes a right motor mounting plate 431b, a right drive motor 432b, a right reduction gear mechanism 433b and a right drive gear 434b.
  • the right motor mounting plate 431b is installed on the inner side of the right base connecting rod 410b through several motor mounting bolts 4311b
  • the right driving motor 432b is installed on the right motor mounting plate 431b
  • the right reduction gear mechanism 433b is installed on the right motor mounting plate 431b and Connected with the output shaft of the right drive motor 432b
  • the right drive gear 434b is installed on the output end of the right reduction gear mechanism 433b.
  • the transverse link 450 is a hollow pipe, and a torsion spring 460 for quickly resetting the seat cushion frame assembly 200 is installed in the transverse link 450 .
  • the torsion spring 460 includes two torsion bars 461 , 462 .
  • the transverse connecting rod 450 On the tube surface of the transverse connecting rod 450, at positions close to its left and right ends, the transverse connecting rod 450 is inwardly recessed to form left and right sunken platform parts 451a, 451b, wherein the left and right sunken platform parts 451a, 451b may be formed by pressing on the pipe surface of the transverse connecting rod 450 .
  • the torsion bar 461 is located inside the transverse link 450.
  • the left end of the torsion bar 461 extends out of the transverse link 450 and is formed as a left outer hook 461a and is positioned by a left torsion spring centering plastic 470a.
  • the right end of the torsion bar 461 is formed as a right inner
  • the hook 461b is also hooked on the right countertop portion 451b of the transverse connecting rod 450 .
  • the torsion bar 462 is located in the transverse link 450, the left end of the torsion bar 462 is formed as a left inner hook 462a and hooked on the left countertop 451a of the transverse link 450, the right end of the torsion bar 462 extends out of the transverse link 450 and Formed as a right outer snap hook 462b and positioned by a right torsion spring centering plastic piece 470b.
  • Left and right front link hooks 442a, 442b are provided at the lower ends of the left and right front links 440a, 440b, and left and right front link hooks 442a, 442b are provided at the upper ends of the outer links 422a, 422b of the left and right tooth plate links 420a, 420b.
  • the left outer hook 461a and the right outer hook 462b are hooked on the left and right front link hooks 442a of the left and right front links 440a and 440b respectively. , 442b, so that the torsion spring 460 is in a pre-tightened state.
  • the left outer hook 461a and the right outer hook 462b do not contact the left and right outer link hooks 4224a, 4224a, 4224b, which can ensure that the torsion spring 460 can be in a pre-tightened state on its full stroke, avoiding the problem of abnormal noise caused by the free state of the torsion spring 460.
  • the left and right outer link hooks 4224a, 4224b hook the left outer hook 461a, the right outer hook 462b, so that the left outer hook 461a and the right outer hook 462b are separated from the left and right front link hooks 442a, 442b, so that the torsion spring 460 generates a larger torque.
  • the left outer hook 461a and the right outer hook 462b apply rotational force to the left and right outer link hooks 4224a and 4224b under the action of torsion, so that the left and right The outer connecting rods 422a, 422b of the gear plate connecting rods 420a, 420b rotate quickly, so that the seat cushion frame assembly is quickly reset.
  • transverse connecting rod 450 On the transverse connecting rod 450, near its left and right ends, there are left and right Y-direction limiting pieces 452a, 452b, which are used to move the upper ends of the left and right gear plate connecting rods 420a, 420b in the Y direction. limit.
  • the seat reclining mechanism according to the first embodiment of the present invention is in the normal position of the seat cushion reclining angle.
  • the seat inclination adjustment mechanism is switched from the normal position of the seat cushion inclination angle to the maximum position of the seat cushion inclination angle.
  • the left and right drive motor assemblies 430a, 430b drive the left and right drive gears 434a, 434b to rotate, thereby driving the left and right tooth plate connecting rods 420a, 420b to rotate, and the left and right tooth plate connecting rods 420a , 420b drives the left and right front links 440a, 440b to rotate through the transverse link 450, so that the front end of the seat cushion frame assembly 200 is lifted to increase the inclination angle of the seat cushion.
  • the inclination angle of the seat back can be changed in the same way as the inclination angle of the seat cushion, or in relation to the inclination angle of the seat cushion.
  • the inclination angle of the seat back can also be additionally adjusted individually.
  • a car seat according to a second embodiment of the present invention which includes a seat reclining mechanism according to a second embodiment, will be described with reference to FIGS. 25 to 39 .
  • the seat reclining mechanism 400' in this embodiment is the same as the seat reclining mechanism 400 in the first embodiment in principle of operation. Specifically, referring to Fig. 25 to Fig. 27, the seat reclining mechanism 400' of this embodiment includes left and right base linkages 410a', 410b', left and right tilt adjustment linkages 420a', 420b', left and right front Links 430a', 430b', transverse link 440' and drive motor mechanism.
  • the left and right base connecting rods 410a', 410b' are fixedly mounted on the inner surfaces of the left and right connecting rods 110a', 110b' of the seat frame assembly 100'.
  • the left and right tilt adjustment links 420a', 420b' are rotatably disposed on the front ends of the left and right base links 410a', 410b'.
  • the upper ends of the left and right front connecting rods 430a', 430b' are hinged on the front ends of the left and right connecting rods 210a', 210b' of the seat cushion frame assembly 200'.
  • the left end of the transverse link 440' forms a rotational connection with the left tilt adjustment link 420a' and the lower end of the left front link 430a' respectively, and the right end of the transverse link 440' is respectively connected with the upper end of the right tilt adjustment link 420b' and the right front link.
  • the lower end of 430b' forms a rotational connection.
  • the drive motor mechanism drives the left tilting adjustment link 420a' and the right tilting adjustment link 420b' to rotate synchronously through the rack and pinion structure, thereby adjusting the inclination angle of the seat cushion.
  • the driving motor mechanism includes left and right driving motor assemblies 450a', 450b', and the left and right driving motor assemblies 450a', 450b' pass through the left and right
  • the motor fixing bolts 451a', 451b' are fixedly installed on the inner side surfaces of the left and right tilting adjustment links 420a', 420b', and pass through the left and right sides of the left and right tilting adjustment links 420a', 420b' with their output ends.
  • the right shaft holes 421a', 421b' are exposed on the outer surfaces of the left and right tilting adjustment links 420a', 420b'.
  • the rack and pinion structure includes left and right driving gears 460a', 460b' and left and right arc-shaped racks 470a', 470b', and the left and right driving gears 460a', 460b' are fixedly mounted on the left and right driving motor assembly 450a ', 450b' on the output.
  • One end of the left and right curved tooth racks 470a', 470b' is hinged on the front ends of the left and right base connecting rods 410a', 410b' through the rack rotating bolts 471a', 471b' and is located on the left and right tilting adjustment connecting rods.
  • the left and right arc-shaped racks 470a', 470b' and the left and right driving gears 460a', 460b' are always in meshed state through the stopper part 480'.
  • the left and right drive gears 460a', 460b' are driven by the left and right drive motor assemblies 450a', 450b' to rotate, guided by the left and right arc-shaped racks 470a', 470b' , to control the rotation angles of the left and right tilt adjustment connecting rods 420a', 420b'.
  • the drive motor mechanism further includes a synchronous lever 490', which is located between the left and right drive motor assemblies 450a', 450b'.
  • the left and right ends of the synchronous rod penetrate into the left and right drive motor assemblies 450a', 450b' and are connected with the output ends of the left and right drive motor assemblies 450a', 450b' to ensure that the left and right drive motor assemblies 450a', 450b' synchronization.
  • the motor with a fast speed will drive the motor with a slow speed through the synchronous rod 490', so that the front end of the seat cushion frame assembly 200' is positioned between the two sides.
  • the lifting speed on both sides is the same, which effectively prevents the uneven movement caused by the speed difference of the motors on both sides.
  • the seat reclining mechanism 400' in this embodiment also includes a connecting elbow 4100', which is located between the left and right tilting adjustment links 420a', 420b'.
  • the right ends are connected to the inner surfaces of the left and right tilting adjustment links 420a', 420b' to ensure the synchronous tilting of the left and right tilting adjustment links 420a', 420b'.
  • the stopper part 480' includes left and right stopper bolts 481a', 481b', and the left and right stopper bolts 481a', 481b' are installed on the outer surfaces of the left and right tilting adjustment links 420a', 420b' Above, wherein, left and right rack limit gaps are formed between left and right stop bolts 481a', 481b' and left and right drive gears 460a', 460b', left and right arc-shaped racks 470a', 470b 'is always located in the limit gap of the left and right racks during the rotation, so that the left and right drive gears 460a', 460b' are always in contact with the convex surfaces formed on the inner arc surfaces of the left and right arc racks 470a', 470b' Teeth 472a', 472b' mesh.
  • the stop part 480' includes left and right stop bolts 482a', 482b' and left and right anti-backlash bushings 483a', 483b'.
  • the left and right anti-backlash bushings 483a', 483b' are fixedly installed on the outer surfaces of the left and right tilting adjustment connecting rods 420a', 420b' through the left and right stop bolts 482a', 482b', wherein the left and right anti-backlash bushes
  • the left and right rack limit gaps are formed between the gap bushings 483a', 483b' and the left and right drive gears 460a', 460b', and the left and right arc racks 470a', 470b' are always located on the left side during the rotation process.
  • the right rack limit gap so that the left and right drive gears 460a', 460b' always mesh with the convex teeth 472a', 472b' formed on the inner arc surfaces of the left and right arc racks 470a', 470b'.
  • the clearance between the left and right driving gears 460a', 460b' and the left and right arc-shaped racks 470a', 470b' is eliminated by the appropriate diameter of the left and right anti-backlash bushings 483a', 483b' .
  • This solution is easier to install, saves cost, and avoids the possibility of abnormal noise.
  • the left and right anti-backlash bushings 483a', 483b' in this scheme can adopt small bushings, and the bushing diameter D1 is relatively small, which is suitable for eliminating large gaps.
  • FIGS 34 and 35 which illustrate another version of the stop member.
  • the left and right anti-backlash bushings 484a' and 484b' in this scheme are installed through the left and right retaining point bolts 485a' and 485b'. Large bushings are used here, and the bushing diameter D2 is relatively large, which is suitable for eliminating small gap.
  • the seat inclination adjustment mechanism 400' in the present embodiment is switched from the normal position of the inclination angle of the seat cushion to the maximum position of the inclination angle of the seat cushion.
  • the left and right drive motor assemblies 450a', 450b' drive the left and right drive gears 460a', 460b' to rotate, guided by the left and right arc-shaped racks 470a', 470b', thus driving
  • the left and right tilt adjustment links 420a', 420b' rotate
  • the left and right tilt adjustment links 420a', 420b' drive the left and right front links 430a', 430b' to rotate through the transverse link 440', so that
  • the front end of the seat cushion frame assembly is raised to increase the inclination of the seat cushion.
  • the lifting stroke can be adjusted only by adjusting the extension lengths of the left and right arc-shaped racks 470a', 470b', so that the structure of the seat inclination

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  • Aviation & Aerospace Engineering (AREA)
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Abstract

一种座椅倾角调节机构(400)以及包含座椅倾角调节机构(400)的汽车座椅。座椅倾角调节机构(400)包括:左、右底座连杆(410a,410b);左、右倾转调节连杆(420a,420b),左、右倾转调节连杆(420a,420b)的下端铰接在左、右底座连杆(410a,410b)的前端部上;左、右前连杆(440a,440b),左、右前连杆(440a,440b)的上端铰接在座椅坐垫骨架总成(200)的左、右连杆(210a,210b)的前端部上;横向连杆(450),横向连杆(450)的左端分别与左倾转调节连杆(420a)的上端和左前连杆(440a)的下端形成转动连接,横向连杆(450)的右端分别与右倾转调节连杆(420b)的上端和右前连杆(440b)的下端形成转动连接;以及驱动电机机构,驱动电机机构通过齿轮齿条结构驱动左倾转调节连杆(420a)和右倾转调节连杆(420b)进行同步转动,从而调节坐垫倾角。

Description

座椅倾角调节机构以及汽车零压座椅 技术领域
本发明涉及汽车座椅技术领域,尤其涉及一种座椅倾角调节机构以及包含有该座椅倾角调节机构的汽车座椅、特别是零压座椅。
背景技术
随着自动驾驶的发展和进步,对乘员的舒适性提出了更高的要求和挑战。汽车零压座椅是一种可以实现更好的舒适性的座椅结构,使得乘员拥有更大的靠背角度和大腿支撑角度。但于此同时,在车辆行驶中,在零重力姿态下,基于现有的约束系统,不能对乘员形成有效的保护。
汽车零压座椅,在碰撞危险发生前,可以收到整车的SCM(安全控制模块)信号。于是,在非常短的时间内(例如200ms~500ms),需要将座椅从零重力姿态(如torso60°,即躺卧在座椅上的乘员或假人的上躯干或者说座椅靠背相对于竖直位置的角度为60°)调整至满足乘员保护约束系统的姿态(如torso 40°,即躺卧在座椅上的乘员或假人的上躯干或者说座椅靠背相对于竖直位置的角度为40°),以保证在车辆行驶过程中在零重力姿态下的乘员安全,从而满足L4/L5自动驾驶场景下的更好的舒适性和安全性。
汽车零压座椅的零重力姿态与正常姿态之间的切换主要是通过倾角调节机构调节座椅坐垫倾角来实现的。然而,现有的汽车零压座椅的倾角调节机构存在倾角调高行程有限的问题。
为此,本申请人经过有益的探索和研究,找到解决上述问题的措施。下面将要介绍的技术方案便是在这种背景下产生的。
发明内容
本发明所要解决的技术问题之一在于:针对现有技术的不足而提供一种座椅倾角调节机构。
本发明所要解决的技术问题之二在于:提供一种包含有上述座椅倾角调节机构的汽车座椅、尤其是零压座椅。
作为本发明第一方面的一种座椅倾角调节机构,包括:
固定安装在座椅座框总成的左、右连杆上的左、右底座连杆;
左、右倾转调节连杆,所述左、右倾转调节连杆的下端铰接在所述左、右底座连杆的前端部上;
左、右前连杆,所述左、右前连杆的上端铰接在座椅坐垫骨架总成的左、右连杆的前端部上;
横向连杆,所述横向连杆的左端分别与所述左倾转调节连杆的上端和所述左前连杆的下端形成转动连接,所述横向连杆的右端分别与所述右倾转调节连杆的上端和所述右前连杆的下端形成转动连接;以及
驱动电机机构,所述驱动电机机构能通过齿轮齿条结构驱动所述左倾转调节连杆和右倾转调节连杆进行同步转动,从而调节坐垫倾角。
在本发明的一个优选实施例中,所述齿轮齿条结构包括相互啮合的左、右驱动齿轮和左、右弧形齿条,其中,左、右驱动齿轮和左、右弧形齿条之一设置在左、右倾转调节连杆上,并且左、右驱动齿轮和左、右弧形齿条之另一设置在左、右底座连杆上。
在本发明的一个优选实施例中,所述驱动电机机构包括左、右驱动电机总成,所述左、右驱动电机总成固定安装在所述左、右底座连杆的内侧面上;所述左、右驱动齿轮固定安装在所述左、右驱动电机总成的输出端上,所述左、右弧形齿条集成在左、右倾转调节连杆中。
在本发明的一个优选实施例中,所述左、右倾转调节连杆构成左、右齿板连杆,所述左、右构成齿板连杆形成有左、右弧状齿形孔道,所述左、右驱动齿轮位于所述左、右齿板连杆的左、右弧状齿形孔道内且与所述左、右弧状齿形孔道啮合。在驱动电机机构工作时,通过所述左、右驱动电机总成驱动所述左、右驱动齿轮进行转动,在所述左、右弧状齿形孔道对左、右驱动齿轮的引导下,控制所述左、右齿板连杆的转动角度。借此能够调整坐垫倾角以及与坐垫倾角相关的座椅靠背倾角。
在本发明的一个优选实施例中,所述左、右齿板连杆均包括:
内侧连杆,所述内侧连杆形成有所述左弧状齿形孔道或右弧状齿形孔道,所述内侧连杆的上端开设有用于套设在所述横向连杆的左端或右端上的内侧转动通孔,在所述内侧连杆的所述左弧状齿形孔道或右弧状齿形孔道的一侧开设有第一安装孔、例如连接螺孔;以及
外侧连杆,所述外侧连杆固定设置在所述内侧连杆的外侧面上,并且在内侧连杆与外侧连杆之间形成有间隙,外侧连杆的上端开设有与所述内侧转动通孔同轴的、用于套设在所述横向连杆的左端或右端上的外侧转动通孔,外侧连杆的下端开设有与所述第一安装孔、例如连接螺孔同轴的第二安装孔、例如连接通孔;
在所述左底座连杆或右底座连杆的前端部上开设有底座通孔。
在本发明的一个优选实施例中,在安装时,所述左底座连杆或右底座连杆的前端部进入所述内侧连杆与外侧连杆之间形成的间隙中;并且调节所述内侧连杆的连接螺孔、所述外侧连杆的连接通孔与所述左底座连杆或右底座连杆的底座通孔处于同轴位置;然后将第一台阶螺栓依次穿过所述连接通孔、底座通孔和连接螺孔并拧紧在连接螺孔中,从而使得所述左齿板连杆或右齿板连杆能围绕所述第一台阶螺栓相对于所述左底座连杆或右底座连杆进行转动。在此,所述第一台阶螺栓构成一种示例性的转轴。不言而喻,其他形式的转轴也是可行的。
在本发明的一个优选实施例中,在所述左底座连杆或右底座连杆的底座通孔内套装有与所述转轴、例如所述第一台阶螺栓形成转动接触的第一衬套。
在本发明的一个优选实施例中,所述左、右齿板连杆还包括第二衬套和第一Y向垫圈,所述第二衬套套装在所述横向连杆的左端或右端上,并且所述第二衬套的内、外端穿过所述内侧连杆的内侧转动通孔、所述外侧连杆的外侧转动通孔,所述第二衬套的内、外端形成有向外凸出的内、外径向翻边,所述第一Y向垫圈套设在所述第二衬套上且位于所述内侧连杆与外侧连杆之间。在本发明的意义中,Y向垫圈表示具有在车辆坐标系中在Y向上或者说在横向方向上延伸的中心轴线的垫圈。
在本发明的一个优选实施例中,所述左、右齿板连杆还包括连接铆钉和第二Y向 垫圈,所述连接铆钉的内、外端穿过所述内侧连杆上开设的内侧铆钉通孔、所述外侧连杆上开设的外侧铆钉通孔,并且被挤压成铆点,所述第二Y向垫圈套设在所述连接铆钉上且位于所述内侧连杆与外侧连杆之间。
在本发明的一个优选实施例中,所述左、右齿板连杆还包括连接螺母,所述连接螺母固定焊接在所述内侧连杆的内侧面上并且与所述连接螺孔同轴,所述连接螺母形成有用于容纳所述第一台阶螺栓的前端的容纳腔室,所述连接螺母的内侧面抵靠在所述左驱动电机总成或右驱动电机总成的电机安装板上,第二台阶螺栓穿过所述电机安装板上的通孔并且旋入所述连接螺母内,从而使得所述左齿板连杆或右齿板连杆能围绕第二台阶螺栓相对于电机安装板进行转动。
在本发明的一个优选实施例中,在所述电机安装板的通孔内套装有与所述第二台阶螺栓形成转动接触的第三衬套。
在本发明的一个优选实施例中,所述左、右齿板连杆还包括加强齿板,所述加强齿板固定安装在所述内侧连杆的内侧面上,所述加强齿板形成有与所述左弧状齿形孔道或右弧状齿形孔道相同的加强弧状齿形孔道。
在本发明的一个优选实施例中,所述左、右前连杆的下端开设有用于套设在所述横向连杆的左、右端上的转动通孔。
在本发明的一个优选实施例中,所述横向连杆为空心管件,在所述横向连杆内安装有用于使得座椅坐垫骨架总成快速复位的扭簧。
在本发明的一个优选实施例中,所述扭簧包括第一扭杆和第二扭杆,所述第一扭杆的左端延伸出所述横向连杆,所述第一扭杆的右端在横向连杆内被横向连杆保持,所述第二扭杆的右端延伸出所述横向连杆,所述第二扭杆的左端在横向连杆内被横向连杆保持,所述第一扭杆的左端以及所述第二扭杆的右端在座椅坐垫倾角增大时能被所述左、右前连杆和/或所述左、右倾转调节连杆操纵,并且从而第一扭杆和第二扭杆被张紧。
在本发明的一个优选实施例中,所述扭簧包括第一扭杆和第二扭杆,在所述横向连杆的管面上靠近其左、右端的位置处向内凹陷形成有左、右沉台部。在进一步方案中,所述第一扭杆位于所述横向连杆内,所述第一扭杆的左端延伸出所述横向连杆并且形 成为左外卡钩并且优选地通过左扭簧定心塑料进行定位,所述第一扭杆的右端形成为右内卡钩并卡勾在所述横向连杆的右沉台部上;和/或所述第二扭杆位于所述横向连杆内,所述第二扭杆的左端形成为左内卡钩并卡勾在所述横向连杆的左沉台部上,所述第二扭杆的右端延伸出所述横向连杆并且形成为右外卡钩,并且优选地通过右扭簧定心塑料件进行定位。
在进一步方案中,在所述左、右前连杆的下端设置有左、右前连杆卡钩部,在所述左、右齿板连杆的外侧连杆的上端设置有左、右外侧连杆卡钩部。
当座椅坐垫倾角处于正常位置时,所述第一扭杆的左外卡钩、第二扭杆的右外卡钩分别卡勾在所述左、右前连杆的左、右前连杆卡钩部上,使得所述扭簧处于预紧状态。此时,所述第一扭杆的左外卡钩、第二扭杆的右外卡钩不接触所述左、右齿板连杆的外侧连杆的左、右外侧连杆卡钩部。
当座椅坐垫倾角由正常位置切换至最大位置时,在转动过程中,所述左、右外侧连杆卡钩部勾住所述第一扭杆的左外卡钩、第二扭杆的右外卡钩,使得所述第一扭杆的左外卡钩、第二扭杆的右外卡钩脱离所述左、右前连杆卡钩部,从而使得所述扭簧产生较大扭矩。
当座椅坐垫倾角由最大位置切换至正常位置时,所述第一扭杆的左外卡钩、第二扭杆的右外卡钩在扭力作用下对所述左、右外侧连杆卡钩部施加转动力,使得所述左、右齿板连杆的外侧连杆快速转动,从而使得座椅坐垫骨架总成快速复位。
在本发明的一个优选实施例中,在所述横向连杆上,在靠近其左、右端的位置处,设置有左、右Y向限位片。
在本发明的一个优选实施例中,所述驱动电机机构包括左、右驱动电机总成,所述左、右驱动电机总成固定安装在所述左、右倾转调节连杆的内侧面上,并且以其输出端穿过所述左、右倾转调节连杆上的左、右轴孔并且露出于所述左、右倾转调节连杆的外侧面。在进一步方案中,所述齿轮齿条结构包括左、右驱动齿轮和左、右弧形齿条,所述左、右驱动齿轮固定安装在所述左、右驱动电机总成的输出端上,所述左、右弧形齿条的一端铰接在所述左、右底座连杆的前端部上并且位于所述左、右倾转调节连杆的前 侧,并且通过挡点部件使得所述左、右弧形齿条与左、右驱动齿轮始终保持啮合状态;在驱动电机机构工作时,通过所述左、右驱动电机总成驱动所述左、右驱动齿轮进行转动,在所述左、右弧形齿条对所述左、右驱动齿轮的引导下,控制所述左、右倾转调节连杆的转动角度。
在本发明的一个优选实施例中,所述驱动电机机构还包括同步杆,所述同步杆位于所述左、右驱动电机总成之间,所述同步杆的左、右端穿入所述左、右驱动电机总成内并且与所述左、右驱动电机总成的输出端连接,以保证所述左、右驱动电机总成的同步度。
在本发明的一个优选实施例中,所述座椅倾角调节机构还包括连接弯管,所述连接弯管位于所述左、右倾转调节连杆之间,所述连接弯管的左、右端连接在所述左、右倾转调节连杆的内侧面上。
在本发明的一个优选实施例中,所述挡点部件设置在所述左、右倾转调节连杆上,并且在自身与所述左、右驱动齿轮之间形成左、右齿条限位间隙。
在本发明的一个优选实施例中,所述挡点部件包括左、右挡点螺栓,所述左、右挡点螺栓安装在所述左、右倾转调节连杆的外侧面上,所述左、右挡点螺栓与所述左、右驱动齿轮之间形成左、右齿条限位间隙,所述左、右弧形齿条在转动过程中始终位于所述左、右齿条限位间隙内,使得所述左、右驱动齿轮始终与所述左、右弧形齿条的内弧面上形成的凸齿啮合。
在本发明的一个优选实施例中,所述挡点部件包括左、右挡点螺栓和左、右消隙衬套,所述左、右消隙衬套通过所述左、右挡点螺栓固定安装在所述述左、右倾转调节连杆的外侧面上,所述左、右消隙衬套与所述左、右驱动齿轮之间形成左、右齿条限位间隙,所述左、右弧形齿条在转动过程中始终位于所述左、右齿条限位间隙内,使得所述左、右驱动齿轮始终与所述左、右弧形齿条的内弧面上形成的凸齿啮合。
作为本发明第二方面的一种汽车座椅、尤其是零压座椅,其包括座椅座框总成、座椅坐垫骨架总成、座椅坐垫总成以及按本发明的任意实施方式的倾角调节机构,所述座椅坐垫骨架总成安装在所述座椅座框总成上,所述座椅坐垫总成包覆在所述座椅坐垫骨架总成的外周上,所述倾角调节机构设置在所述座椅座框总成与座椅坐垫骨架总成 之间,用于调节所述座椅坐垫骨架总成相对于所述座椅座框总成的倾斜角度。
由于采用如上技术方案,本发明的有益效果可以在于以下任意一项或多项:
1.在相同空间条件下,本发明通过驱动左、右倾转调节连杆进行转动,从而调节坐垫倾角,有效地提高坐垫倾角的调高行程;
2.在相同布置工况下,本发明采用双侧驱动电机加齿板的结构,驱动电机机构的锁止强度高,使得座椅倾角调节机构可适用于ABTS座椅中;
3.在相同空间条件下,与现有的布置方式相比,本发明的驱动电机可以固定不动,有效地节约了驱动电机随动造成的扫掠空间;
4.在相同空间条件下,与现有的布置方式相比,本发明的占据空间更小;
5.本发明的齿板结构加上扭簧助力,能实现坐垫快速复位,能更好地保护乘员安全;
6.在座椅倾角的相同提升的工况下,本发明可通过挡点部件有效地实现间隙的调节,避免异响发生的可能性。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅显示本发明的一些实施例。对于本领域普通技术人员来讲,在不需要付出创造性劳动的前提下,在这些附图所示的实施例的基础上,还可以获得其他的实施例。
图1是本发明的汽车零压座椅的第一实施例处于坐垫倾角的正常位置时的结构示意图。
图2是本发明的汽车零压座椅的第一实施例处于坐垫倾角的最大位置时的结构示意图。
图3是本发明的汽车零压座椅的第一实施例处于坐垫倾角的正常位置时的结构示意图(省略座椅坐垫总成)。
图4是本发明的汽车零压座椅的第一实施例处于坐垫倾角的最大位置时的结构示意图(省略座椅坐垫总成)。
图5是本发明的汽车零压座椅的第一实施例的椅座框总成、座椅坐垫总成和倾角调节机构的组装示意图。
图6是图5的分解结构示意图。
图7是本发明的第一实施例的座椅倾角调节机构的结构示意图。
图8是本发明的第一实施例的座椅倾角调节机构的分解结构示意图。
图9是本发明的第一实施例的左、右齿板连杆的分解结构示意图。
图10是本发明的第一实施例的左、右驱动电机总成的结构示意图。
图11是本发明的第一实施例的在左、右齿板连杆与左、右底座连杆之间的连接处的剖视图。
图12是本发明的第一实施例的在左、右齿板连接、左、右前连杆与横向连杆之间的连接处的剖视图。
图13是本发明的第一实施例的座椅倾角调节机构处于坐垫倾角的正常位置时的结构示意图。
图14是图13中关于扭簧与左、右前连杆和左、右齿板连杆之间进行配合的局部放大示意图。
图15是本发明的第一实施例的座椅倾角调节机构处于坐垫倾角的中间位置时的结构示意图。
图16是图15中关于扭簧与左、右前连杆和左、右齿板连杆之间进行配合的局部放大示意图。
图17是本发明的第一实施例的座椅倾角调节机构处于坐垫倾角的最大位置时的结构示意图。
图18是图17中关于扭簧与左、右前连杆和左、右齿板连杆之间进行配合的局部放大示意图。
图19是本发明的第一实施例的座椅倾角调节机构处于坐垫倾角的正常位置时的三维结构示意图。
图20是本发明的第一实施例的座椅倾角调节机构处于坐垫倾角的正常位置时的侧 视图。
图21是本发明的第一实施例的座椅倾角调节机构处于坐垫倾角的正常位置时的各个连杆的简易连接示意图。
图22是本发明的第一实施例的座椅倾角调节机构处于坐垫倾角的最大位置时的三维结构示意图。
图23是本发明的第一实施例的座椅倾角调节机构处于坐垫倾角的最大位置时的侧视图。
图24是本发明的第一实施例的座椅倾角调节机构处于坐垫倾角的最大位置时的各个连杆的简易连接示意图。
图25是按本发明的第二实施例的汽车座椅的座椅倾角调节机构处于坐垫倾角的正常位置时的三维结构示意图。
图26是本发明的第二实施例的座椅倾角调节机构处于坐垫倾角的最大位置时的三维结构示意图。
图27是本发明的第二实施例的座椅倾角调节机构的分解结构示意图。
图28是本发明的第二实施例的座椅倾角调节机构的驱动电机机构与齿轮齿条结构的配合示意图。
图29是图28的分解结构示意图。
图30是本发明的第二实施例的座椅倾角调节机构的驱动电机机构的结构示意图。
图31是本发明的第二实施例的座椅倾角调节机构的齿轮齿条结构的挡点部分的一种实施例的局部放大示意图。
图32是本发明的第二实施例的座椅倾角调节机构的齿轮齿条结构的挡点位置处的另一种实施例的局部放大示意图。
图33是图32的挡点位置处的剖视图。
图34是本发明的第二实施例的座椅倾角调节机构的齿轮齿条结构的挡点位置处的又一种实施例的局部放大示意图。
图35是图34的挡点位置处的剖视图。
图36是本发明的第二实施例的座椅倾角调节机构处于坐垫倾角的正常位置时的侧视图。
图37是本发明的第二实施例的座椅倾角调节机构处于坐垫倾角的正常位置时的各个连杆的简易连接示意图。
图38是本发明的第二实施例的座椅倾角调节机构处于坐垫倾角的最大位置时的侧视图。
图39是本发明的第二实施例的座椅倾角调节机构处于坐垫倾角的最大位置时的各个连杆的简易连接示意图。
具体实施方式
为了使本发明实现的技术手段、创作特征、达成目的与功效易于明白了解,下面结合具体图示,进一步阐述本发明。
首先,参考图1至图24说明按本发明的第一实施例的汽车座椅,其包括按第一实施方式的座椅倾角调节机构。
参见图1至图5,这些图中示出一种汽车座椅、尤其是汽车零压座椅或者说零重力座椅。该汽车座椅包括座椅座框总成100、座椅坐垫骨架总成200、座椅坐垫总成300以及座椅倾角调节机构400。座椅坐垫骨架总成200安装在座椅座框总成100上,座椅坐垫总成300包覆在座椅坐垫骨架总成200的外周上,座椅倾角调节机构400设置在座椅座框总成100与座椅坐垫骨架总成200之间,用于调节座椅坐垫骨架总成200相对于座椅座框总成100的倾斜角度,使得座椅坐垫骨架总成200能在坐垫倾角的正常位置(如图1或图3所示)与坐垫倾角的最大位置(如图2、图3或图5所示)之间进行切换。
参见图7和图8并结合图6,座椅倾角调节机构400包括左、右底座连杆410a、410b、左、右倾转调节连杆420a、420b、左、右前连杆440a、440b、横向连杆450以及驱动电机机构。
左、右底座连杆410a、410b固定安装在座椅座框总成100的左、右连杆110a、 110b的内侧面上。
左、右倾转调节连杆420a、420b可转动地设置在左、右底座连杆410a、410b的前端部上。
左、右前连杆440a、440b的上端铰接在座椅坐垫骨架总成200的左、右连杆210a、210b的前端部上。
横向连杆450的左端分别与左倾转调节连杆420a和左前连杆440a的下端形成转动连接,并且横向连杆450的右端分别与右倾转调节连杆420b的上端和右前连杆440b的下端形成转动连接。具体地,横向连杆450的左端穿过左倾转调节连杆420a的上端和左前连杆440a的下端并形成转动连接,并且横向连杆450的右端穿过右倾转调节连杆420b的上端和右前连杆440b的下端并形成转动连接。
驱动电机机构可以通过齿轮齿条结构驱动左倾转调节连杆420a和右倾转调节连杆420b进行同步转动,从而调节坐垫倾角。驱动电机机构可以采用双侧电机型式,其包括左、右驱动电机总成430a、430b,所述左、右驱动电机总成430a、430b固定安装在左、右底座连杆410a、410b的内侧面上。齿轮齿条结构包括左、右驱动齿轮434a、434b和左、右齿板,左、右驱动齿轮434a、434b固定安装在左、右驱动电机总成430a、430b的输出端上,左、右齿板集成于左、右倾转调节连杆420a、420b,并且因此构成为左、右齿板连杆。左、右齿板连杆420a、420b形成有左、右弧状齿形孔道4211a、4211b,左、右驱动电机总成430a、430b上的左、右驱动齿轮434a、434b位于左、右齿板连杆420a、420b的左、右弧状齿形孔道4211a、4211b内且与左、右弧状齿形孔道4211a、4211b啮合。在驱动电机机构工作时,左、右驱动电机总成430a、430b驱动左、右驱动齿轮434a、434b进行转动,在左、右弧状齿形孔道4211a、4211b的引导下,控制左、右齿板连杆420a、420b的转动角度。
参见图9并结合图7和图8,左齿板连杆420a包括内侧连杆421a和外侧连杆422a。
内侧连杆421a内形成有左弧状齿形孔道4211a,内侧连杆421a的上端开设有用于套设在横向连杆450的左端上的内侧转动通孔4212a,在内侧连杆421a的左弧状齿形孔道4211a的一侧开设有连接螺孔4213a。
外侧连杆422a固定设置在内侧连杆421a的外侧面上,并且在外侧连杆与内侧连杆之间形成有间隙。外侧连杆422a的上端开设有与内侧转动通孔4212a同轴的、用于套设在横向连杆450的左端上的外侧转动通孔4221a。外侧连杆422a的下端开设有与连接螺孔4213a同轴的连接通孔4222a。
在左底座连杆410a的前端部上开设有底座通孔411a。
在安装时,左底座连杆410a的前端部进入到在内侧连杆421a与外侧连杆422a之间形成的间隙中;调节内侧连杆421a的连接螺孔4213a、外侧连杆422a的连接通孔4222a与左底座连杆410a的底座通孔411a,使得它们处于同轴位置;然后,将台阶螺栓480a依次穿过连接通孔4222a、底座通孔411a和连接螺孔4213a,并且将台阶螺栓480a拧紧在连接螺孔4213a中,从而使得左齿板连杆420a能围绕台阶螺栓480a相对于左底座连杆410a进行转动。在左底座连杆410a的底座通孔411a内套装有与台阶螺栓480a形成转动接触的衬套412a,保证转动顺畅,避免磨损。
参见图9至图12并结合图7和图8,右齿板连杆420b包括内侧连杆421b和外侧连杆422b。
内侧连杆421b形成有右弧状齿形孔道4211b,内侧连杆421b的上端开设有用于套设在横向连杆450的右端上的内侧转动通孔4212b,在内侧连杆421b的右弧状齿形孔道4211b的一侧上开设有连接螺孔4213b。
外侧连杆422b固定设置在内侧连杆421b的外侧面上,并且在内侧连杆与外侧连杆之间形成有间隙。外侧连杆422b的上端开设有与内侧转动通孔4212b同轴的、用于套设在横向连杆450的右端上的外侧转动通孔4221b。外侧连杆422b的下端开设有与连接螺孔4213b同轴的连接通孔4222b。
在右底座连杆410b的前端部上开设有底座通孔411b。
在安装时,右底座连杆410b的前端部进入到在内侧连杆421b与外侧连杆422b之间形成的间隙中;调节内侧连杆421b的连接螺孔4213b、外侧连杆422b的连接通孔4222b与右底座连杆410b的底座通孔411b,使得它们处于同轴位置;然后,将台阶螺栓480b依次穿过连接通孔4222b、底座通孔411b和连接螺孔4213b,并且将台阶螺栓 480b拧紧在连接螺孔4213b中,从而使得右齿板连杆420b能围绕台阶螺栓480b相对于右底座连杆410b进行转动。在右底座连杆410b的底座通孔411b内套装有与台阶螺栓480b形成转动接触的衬套412b,保证转动顺畅,避免磨损。
左齿板连杆420a还包括衬套423a和Y向垫圈424a。衬套423a套装在横向连杆450的左端上,并且其内、外端穿过内侧连杆421a的内侧转动通孔4212a、外侧连杆422a的外侧转动通孔4221a。在衬套423a的内、外端上形成有向外凸出的内、外径向翻边4231a、4232a,用于对内侧连杆421a和外侧连杆422a进行限位,Y向垫圈424a套设在衬套423a上并且位于内侧连杆421a与外侧连杆422a之间,使得内侧连杆421a与外侧连杆422a保持一定的间隙。
右齿板连杆420b还包括衬套423b和Y向垫圈424b。衬套423b套装在横向连杆450的右端上,并且其内、外端穿过内侧连杆421b的内侧转动通孔4212b、外侧连杆422b的外侧转动通孔4221b。在衬套423b的内、外端上形成有向外凸出的内、外径向翻边4231b、4232b,用于对内侧连杆421b和外侧连杆422b进行限位。Y向垫圈424b套设在衬套423b上并且位于内侧连杆421b与外侧连杆422b之间,使得内侧连杆421b与外侧连杆422b保持一定的间隙。
左齿板连杆420a还包括连接铆钉425a和Y向垫圈426a。连接铆钉425a的内、外端穿过内侧连杆421a上开设的内侧铆钉通孔4214a、外侧连杆422a上开设的外侧铆钉通孔4223a,然后被挤压成铆点。Y向垫圈426a套设在连接铆钉425a上且位于内侧连杆421a与外侧连杆422a之间,一方面使得内侧连杆421a与外侧连杆422a进行固接,另一方面使得内侧连杆421a与外侧连杆422a保持一定的间隙。
右齿板连杆420b还包括连接铆钉425b和Y向垫圈426b。连接铆钉425b的内、外端穿过内侧连杆421b上开设的内侧铆钉通孔4214b、外侧连杆422b上开设的外侧铆钉通孔4223b,然后挤压成铆点。Y向垫圈426b套设在连接铆钉425b上且位于内侧连杆421b与外侧连杆422b之间,一方面使得内侧连杆421b与外侧连杆422b进行固接,另一方面使得内侧连杆421b与外侧连杆422b保持一定的间隙。
左齿板连杆420a还包括连接螺母427a,该连接螺母427a固定焊接在内侧连杆 421a的内侧面上且与连接螺孔4213a同轴。连接螺母427a形成有用于容纳台阶螺栓480a前端的容纳腔室,连接螺母427a的内侧面抵靠在左驱动电机总成430a的左电机安装板431a上。通过将台阶螺栓490a穿过左驱动电机总成430a的左电机安装板431a上的通孔并且然后旋入到连接螺母427a内,使得左齿板连杆420a能围绕台阶螺栓490a相对于左驱动电机总成430a的左电机安装板431a进行转动。在左驱动电机总成430a的左电机安装板431a的通孔内套装有与台阶螺栓490a形成转动接触的衬套4312a,保证转动顺畅,避免磨损。
右齿板连杆420b还包括连接螺母427b,连接螺母427b固定焊接在内侧连杆421b的内侧面上且与连接螺孔4213b同轴。连接螺母427b形成有用于容纳台阶螺栓490b前端的容纳腔室,连接螺母427b的内侧面抵靠在右驱动电机总成430b的右电机安装板431b上。通过将台阶螺栓490b穿过右驱动电机总成430b的右电机安装板431b上的通孔并且然后旋入到连接螺母427b内,使得右齿板连杆420b能围绕台阶螺栓490b相对于右驱动电机总成430b的右电机安装板431b进行转动。在右驱动电机总成430b的右电机安装板431b的通孔内套装有与台阶螺栓490b形成转动接触的衬套4312b,保证转动顺畅,避免磨损。
左齿板连杆420a还包括加强齿板428a,该加强齿板428a通过铆钉或其他紧固件固定安装在内侧连杆421a的内侧面上,该加强齿板428a形成有与左弧状齿形孔道4211a相同的加强弧状齿形孔道4281a,以提高齿轮齿条结构的强度。
右齿板连杆420b还包括加强齿板428b,该加强齿板428b通过铆钉或其他紧固件固定安装在内侧连杆421b的内侧面上,该加强齿板428b形成有与右弧状齿形孔道4211b相同的加强弧状齿形孔道4281b,以提高齿轮齿条结构的强度。
左、右前连杆440a、440b的下端开设有用于套设在横向连杆450的左、右端上的左、右前连杆转动通孔441a、441b。
参见图10并结合图8,左驱动电机总成430a包括左电机安装板431a、左驱动电机432a、左减速齿轮机构433a以及左驱动齿轮434a。左电机安装板431a通过若干电机安装螺栓4311a安装在左底座连杆410a的内侧面上,左驱动电机432a安装在左电 机安装板431a上,左减速齿轮机构433a安装在左电机安装板431a上并且与左驱动电机432a的输出轴连接,左驱动齿轮434a安装在左减速齿轮机构433a的输出端上。
右驱动电机总成430b包括右电机安装板431b、右驱动电机432b、右减速齿轮机构433b以及右驱动齿轮434b。右电机安装板431b通过若干电机安装螺栓4311b安装在右底座连杆410b的内侧面上,右驱动电机432b安装在右电机安装板431b上,右减速齿轮机构433b安装在右电机安装板431b上并且与右驱动电机432b的输出轴连接,右驱动齿轮434b安装在右减速齿轮机构433b的输出端上。
参见图8并结合图17至图22,横向连杆450为空心管件,在横向连杆450内安装有用于使得座椅坐垫骨架总成200快速复位的扭簧460。
扭簧460包括两个扭杆461、462。在横向连杆450的管面上,在靠近其左、右端的位置处,横向连杆450向内凹陷,形成有左、右沉台部451a、451b,其中,左、右沉台部451a、451b可以是在横向连杆450的管面上通过压制的方式而形成。扭杆461位于横向连杆450内,扭杆461的左端延伸出横向连杆450并且形成为左外卡钩461a并且通过左扭簧定心塑料470a进行定位,扭杆461的右端形成为右内卡钩461b并卡勾在横向连杆450的右沉台部451b上。扭杆462位于横向连杆450内,扭杆462的左端形成为左内卡钩462a并卡勾在横向连杆450的左沉台部451a上,扭杆462的右端延伸出横向连杆450并且形成为右外卡钩462b并通过右扭簧定心塑料件470b进行定位。
在左、右前连杆440a、440b的下端设置有左、右前连杆卡钩部442a、442b,在左、右齿板连杆420a、420b的外侧连杆422a、422b的上端设置有左、右外侧连杆卡钩部4224a、4224b。
参见图13和图14,当座椅坐垫倾角处于正常位置时,左外卡钩461a、右外卡钩462b分别卡勾在左、右前连杆440a、440b的左、右前连杆卡钩部442a、442b上,使得扭簧460处于预紧状态,此时左外卡钩461a、右外卡钩462b不接触左、右齿板连杆420a、420b的左、右外侧连杆卡钩部4224a、4224b,这样能保证扭簧460在其全行程上都能处于预紧状态,避免了扭簧460由于自由状态而导致的异响问题。
参见图15和图16,当座椅坐垫倾角由正常位置切换至中间位置时,在转动过程中,左、右外侧连杆卡钩部4224a、4224b和左、右前连杆卡钩部442a、442b同时与左外卡钩461a、右外卡钩462b接触,此时扭簧460的扭力并无变化。
参见图17和图18,当座椅坐垫倾角由中间位置切换至最大位置时,在转动过程中,左、右外侧连杆卡钩部4224a、4224b勾住左外卡钩461a、右外卡钩462b,使得左外卡钩461a、右外卡钩462b脱离左、右前连杆卡钩部442a、442b,从而使得扭簧460产生较大扭矩。当座椅坐垫倾角由最大位置切换至正常位置时,左外卡钩461a、右外卡钩462b在扭力作用下对左、右外侧连杆卡钩部4224a、4224b施加转动力,使得左、右齿板连杆420a、420b的外侧连杆422a、422b快速转动,从而使得座椅坐垫骨架总成快速复位。
在横向连杆450上,在靠近其左、右端的位置处,设置有左、右Y向限位片452a、452b,用于对左、右齿板连杆420a、420b的上端在Y向上进行限位。
按本发明的第一实施方式的座椅倾角调节机构的工作过程可以如下:
参见图19至图21,按本发明的第一实施方式的座椅倾角调节机构处于坐垫倾角正常位置。
参见图22至图24,按本发明的第一实施方式的座椅倾角调节机构由坐垫倾角正常位置切换至坐垫倾角最大位置。在此过程中,左、右驱动电机总成430a、430b驱动左、右驱动齿轮434a、434b进行转动,从而带动左、右齿板连杆420a、420b进行转动,左、右齿板连杆420a、420b又通过横向连杆450带动左、右前连杆440a、440b进行转动,从而使得座椅坐垫骨架总成200的前端被抬升,以增大座椅坐垫的倾角。座椅靠背的倾角可以与座椅坐垫的倾角同样地改变,或者与座椅坐垫的倾角相关地改变。作为补充措施,座椅靠背的倾角可以还单独地附加地调整。
现在,参考图25至图39说明按本发明的第二实施例的汽车座椅,其包括按第二实施方式的座椅倾角调节机构。
在本实施例中的座椅倾角调节机构400’与在第一实施例中的座椅倾角调节机构400在工作原理上是相同的。具体地,参见图25至图27,本实施例的座椅倾角调节机 构400’包括左、右底座连杆410a’、410b’、左、右倾转调节连杆420a’、420b’、左、右前连杆430a’、430b’、横向连杆440’以及驱动电机机构。
左、右底座连杆410a’、410b’固定安装在座椅座框总成100’的左、右连杆110a’、110b’的内侧面上。
左、右倾转调节连杆420a’、420b’可转动地设置在左、右底座连杆410a’、410b’的前端部上。
左、右前连杆430a’、430b’的上端铰接在座椅坐垫骨架总成200’的左、右连杆210a’、210b’的前端部上。
横向连杆440’的左端分别与左倾转调节连杆420a’和左前连杆430a’的下端形成转动连接,横向连杆440’的右端分别与右倾转调节连杆420b’的上端和右前连杆430b’的下端形成转动连接。
驱动电机机构通过齿轮齿条结构驱动左倾转调节连杆420a’和右倾转调节连杆420b’进行同步转动,从而调节坐垫倾角。在本实施例中,参见图28至图29并结合图27,驱动电机机构包括左、右驱动电机总成450a’、450b’,左、右驱动电机总成450a’、450b’通过左、右电机固定螺栓451a’、451b’固定安装在左、右倾转调节连杆420a’、420b’的内侧面上,以其输出端穿过左、右倾转调节连杆420a’、420b’上的左、右轴孔421a’、421b’并且露出于左、右倾转调节连杆420a’、420b’的外侧面。齿轮齿条结构包括左、右驱动齿轮460a’、460b’和左、右弧形齿条470a’、470b’,左、右驱动齿轮460a’、460b’固定安装在左、右驱动电机总成450a’、450b’的输出端上。左、右弧形齿条470a’、470b’的一端通过齿条转动螺栓471a’、471b’铰接在左、右底座连杆410a’、410b’的前端部上且位于左、右倾转调节连杆420a’、420b’的前侧。通过挡点部件480’使得左、右弧形齿条470a’、470b’与左、右驱动齿轮460a’、460b’始终保持啮合状态。在驱动电机机构工作时,通过左、右驱动电机总成450a’、450b’驱动左、右驱动齿轮460a’、460b’进行转动,在左、右弧形齿条470a’、470b’的引导下,控制左、右倾转调节连杆420a’、420b’的转动角度。
参见图30并结合图25和图26,驱动电机机构还包括同步杆490’,该同步杆490’ 位于左、右驱动电机总成450a’、450b’之间。该同步杆的左、右端穿入左、右驱动电机总成450a’、450b’内并且与左、右驱动电机总成450a’、450b’的输出端连接,以保证左、右驱动电机总成450a’、450b’的同步度。当左、右驱动电机总成450a’、450b’的电机速度存在差异时,速度快的电机会通过同步杆490’带动速度慢的电机,从而使得座椅坐垫骨架总成200’的前端在双侧的提升速度相同,有效地防止因双侧电机的速度差异而导致运动的不平顺。
在本实施例中的座椅倾角调节机构400’还包括连接弯管4100’,该连接弯管4100’位于左、右倾转调节连杆420a’、420b’之间,该连接弯管的左、右端连接在左、右倾转调节连杆420a’、420b’的内侧面上,以保证左、右倾转调节连杆420a’、420b’的同步倾转。
参见图31,挡点部件480’包括左、右挡点螺栓481a’、481b’,左、右挡点螺栓481a’、481b’安装在左、右倾转调节连杆420a’、420b’的外侧面上,其中,左、右挡点螺栓481a’、481b’与左、右驱动齿轮460a’、460b’之间形成有左、右齿条限位间隙,左、右弧形齿条470a’、470b’在转动过程中始终位于左、右齿条限位间隙内,使得左、右驱动齿轮460a’、460b’始终与左、右弧形齿条470a’、470b’的内弧面上形成的凸齿472a’、472b’啮合。在此方案中无需设置消隙衬套,其中,左、右驱动齿轮460a’、460b’与左、右弧形齿条470a’、470b’之间的间隙依靠左、右挡点螺栓481a’、481b’的适宜的直径而消除,这可以避免异响发生的可能性。
参见图32和图33,它们描述挡点部件480’的另一种型式。该挡点部件480’包括左、右挡点螺栓482a’、482b’和左、右消隙衬套483a’、483b’。左、右消隙衬套483a’、483b’通过左、右挡点螺栓482a’、482b’固定安装在左、右倾转调节连杆420a’、420b’的外侧面上,其中,左、右消隙衬套483a’、483b’与左、右驱动齿轮460a’、460b’之间形成左、右齿条限位间隙,左、右弧形齿条470a’、470b’在转动过程中始终位于左、右齿条限位间隙内,使得左、右驱动齿轮460a’、460b’始终与左、右弧形齿条470a’、470b’的内弧面上形成的凸齿472a’、472b’啮合。在此方案中,左、右驱动齿轮460a’、460b’与左、右弧形齿条470a’、470b’之间的间隙依靠左、右消隙衬套483a’、483b’的适宜的 直径消除。该方案更加便于安装,节约成本,避免异响发生的可能性。该方案中的左、右消隙衬套483a’、483b’可以采用小衬套,衬套直径D1较小,适用于消除大间隙。
此外,参见图34和图35,它们描述挡点部件的另一种型式。该方案中的左、右消隙衬套484a’、484b’是通过左、右挡点螺栓485a’、485b’进行安装的,在此采用大衬套,衬套直径D2较大,适用于消除小间隙。
参见图36至图39,本实施例中的座椅倾角调节机构400’由坐垫倾角正常位置切换至坐垫倾角最大位置。在此过程中,左、右驱动电机总成450a’、450b’驱动左、右驱动齿轮460a’、460b’进行转动,在左、右弧形齿条470a’、470b’的引导下,从而带动左、右倾转调节连杆420a’、420b’进行转动,左、右倾转调节连杆420a’、420b’又通过横向连杆440’带动左、右前连杆430a’、430b’进行转动,从而使得座椅坐垫骨架总成的前端被抬升,以增大座椅坐垫的倾角。此外,只需通过调节左、右弧形齿条470a’、470b’的延伸长度,就可以调节抬升行程,使得座椅倾角调节机构结构更为简单,占据空间更小。
以上显示和描述了本发明的基本原理和主要特征和本发明的优点。本行业的技术人员应该了解,本发明不受上述实施例的限制,上述实施例和说明书中描述的只是说明本发明的原理,在不脱离本发明精神和范围的前提下,本发明还会有各种变化和改进,这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等效物界定。

Claims (25)

  1. 一种座椅倾角调节机构,其特征在于,所述座椅倾角调节机构包括:
    固定安装在座椅座框总成的左、右连杆上的左、右底座连杆;
    左、右倾转调节连杆,所述左、右倾转调节连杆的下端铰接在所述左、右底座连杆的前端部上;
    左、右前连杆,所述左、右前连杆的上端铰接在座椅坐垫骨架总成的左、右连杆的前端部上;
    横向连杆,所述横向连杆的左端分别与所述左倾转调节连杆的上端和所述左前连杆的下端形成转动连接,所述横向连杆的右端分别与所述右倾转调节连杆的上端和所述右前连杆的下端形成转动连接;以及
    驱动电机机构,所述驱动电机机构能通过齿轮齿条结构驱动所述左倾转调节连杆和右倾转调节连杆进行同步转动,从而调节坐垫倾角。
  2. 如权利要求1所述的座椅倾角调节机构,其特征在于,所述齿轮齿条结构包括相互啮合的左、右驱动齿轮和左、右弧形齿条,其中,左、右驱动齿轮和左、右弧形齿条之一设置在左、右倾转调节连杆上,并且左、右驱动齿轮和左、右弧形齿条之另一设置在左、右底座连杆上。
  3. 如权利要求2所述的座椅倾角调节机构,其特征在于,所述驱动电机机构包括左、右驱动电机总成,所述左、右驱动电机总成固定安装在所述左、右底座连杆的内侧面上;所述左、右驱动齿轮固定安装在所述左、右驱动电机总成的输出端上,所述左、右弧形齿条集成在左、右倾转调节连杆中。
  4. 如权利要求3所述的座椅倾角调节机构,其特征在于,所述左、右倾转调节连杆构成左、右齿板连杆,所述左、右构成齿板连杆形成有左、右弧状齿形孔道,所述左、右驱动齿轮位于所述左、右齿板连杆的左、右弧状齿形孔道内且与所述左、右弧状齿形孔道啮合;在驱动电机机构工作时,通过所述左、右驱动电机总成驱动所述左、右驱动齿轮进行转动,在所述左、右弧状齿形孔道对左、右驱动齿轮的引导下,控制所述左、 右齿板连杆的转动角度。
  5. 如权利要求4所述的座椅倾角调节机构,其特征在于,所述左、右齿板连杆均包括:
    内侧连杆,所述内侧连杆形成有所述左弧状齿形孔道或右弧状齿形孔道,所述内侧连杆的上端开设有用于套设在所述横向连杆的左端或右端上的内侧转动通孔,在所述内侧连杆的所述左弧状齿形孔道或右弧状齿形孔道的一侧开设有第一安装孔;以及
    外侧连杆,所述外侧连杆固定设置在所述内侧连杆的外侧面上,且在内侧连杆与外侧连杆之间形成有间隙,外侧连杆的上端开设有与所述内侧转动通孔同轴的、用于套设在所述横向连杆的左端或右端上的外侧转动通孔,外侧连杆的下端开设有与所述第一安装孔同轴的第二安装孔;
    在所述左底座连杆或右底座连杆的前端部上开设有底座通孔;
    所述左底座连杆或右底座连杆的前端部进入所述内侧连杆与外侧连杆之间形成的间隙中,第一安装孔、第二安装孔和底座通孔处于同轴位置,转轴穿过所述第一安装孔、底座通孔和第二安装孔,从而使得所述左齿板连杆或右齿板连杆能围绕所述转轴相对于所述左底座连杆或右底座连杆进行转动。
  6. 如权利要求5所述的座椅倾角调节机构,其特征在于,所述第一安装孔是连接螺孔,所述第二安装孔是连接通孔,所述转轴是第一台阶螺栓,所述第一台阶螺栓依次穿过所述连接通孔、底座通孔和连接螺孔并且拧紧在连接螺孔中,从而使得所述左齿板连杆或右齿板连杆能围绕所述第一台阶螺栓相对于所述左底座连杆或右底座连杆进行转动。
  7. 如权利要求6所述的座椅倾角调节机构,其特征在于,在所述左底座连杆或右底座连杆的底座通孔内套装有与所述第一台阶螺栓形成转动接触的第一衬套。
  8. 如权利要求5所述的座椅倾角调节机构,其特征在于,所述左、右齿板连杆还包括第二衬套和第一Y向垫圈,所述第二衬套套装在所述横向连杆的左端或右端上,并且所述第二衬套的内、外端穿过所述内侧连杆的内侧转动通孔、所述外侧连杆的外侧转动通孔,所述第二衬套的内、外端形成有向外凸出的内、外径向翻边,所述第一Y向 垫圈套设在所述第二衬套上且位于所述内侧连杆与外侧连杆之间。
  9. 如权利要求5所述的座椅倾角调节机构,其特征在于,所述左、右齿板连杆还包括连接铆钉和第二Y向垫圈,所述连接铆钉的内、外端穿过所述内侧连杆上开设的内侧铆钉通孔、所述外侧连杆上开设的外侧铆钉通孔,并且被挤压成铆点,所述第二Y向垫圈套设在所述连接铆钉上且位于所述内侧连杆与外侧连杆之间。
  10. 如权利要求6所述的座椅倾角调节机构,其特征在于,所述左、右齿板连杆还包括连接螺母,所述连接螺母固定焊接在所述内侧连杆的内侧面上并且与所述连接螺孔同轴,所述连接螺母形成有用于容纳所述第一台阶螺栓的前端的容纳腔室,所述连接螺母的内侧面抵靠在所述左驱动电机总成或右驱动电机总成的电机安装板上,第二台阶螺栓穿过所述电机安装板上的通孔并且旋入所述连接螺母内,从而使得所述左齿板连杆或右齿板连杆能围绕第二台阶螺栓相对于所述电机安装板进行转动。
  11. 如权利要求10所述的座椅倾角调节机构,其特征在于,在所述电机安装板的通孔内套装有与所述第二台阶螺栓形成转动接触的第三衬套。
  12. 如权利要求5所述的座椅倾角调节机构,其特征在于,所述左、右齿板连杆还包括加强齿板,所述加强齿板固定安装在所述内侧连杆的内侧面上,所述加强齿板形成有与所述左弧状齿形孔道或右弧状齿形孔道相同的加强弧状齿形孔道。
  13. 如权利要求1所述的座椅倾角调节机构,其特征在于,所述左、右前连杆的下端开设有用于套设在所述横向连杆的左、右端上的转动通孔。
  14. 如权利要求1所述的座椅倾角调节机构,其特征在于,所述横向连杆为空心管件,在所述横向连杆内安装有用于使得座椅坐垫骨架总成复位的扭簧。
  15. 如权利要求14所述的座椅倾角调节机构,其特征在于,所述扭簧包括第一扭杆和第二扭杆,所述第一扭杆的左端延伸出所述横向连杆,所述第一扭杆的右端在横向连杆内被横向连杆保持,所述第二扭杆的右端延伸出所述横向连杆,所述第二扭杆的左端在横向连杆内被横向连杆保持,所述第一扭杆的左端以及所述第二扭杆的右端在座椅坐垫倾角增大时能被所述左、右前连杆和/或所述左、右倾转调节连杆操纵,并且从而第一扭杆和第二扭杆被张紧。
  16. 如权利要求5所述的座椅倾角调节机构,其特征在于,所述横向连杆为空心管件,在所述横向连杆内安装有扭簧,所述扭簧包括第一扭杆和第二扭杆,在所述横向连杆的管面上靠近其左、右端的位置处向内凹陷形成有左、右沉台部;
    所述第一扭杆位于所述横向连杆内,所述第一扭杆的左端延伸出所述横向连杆并且形成为左外卡钩并且通过左扭簧定心塑料进行定位,所述第一扭杆的右端形成为右内卡钩并卡勾在所述横向连杆的右沉台部上;
    所述第二扭杆位于所述横向连杆内,所述第二扭杆的左端形成为左内卡钩并卡勾在所述横向连杆的左沉台部上,所述第二扭杆的右端延伸出所述横向连杆并且形成为右外卡钩并且通过右扭簧定心塑料件进行定位;
    在所述左、右前连杆的下端设置有左、右前连杆卡钩部,在所述左、右齿板连杆的外侧连杆的上端设置有左、右外侧连杆卡钩部;
    当座椅坐垫倾角处于正常位置时,所述第一扭杆的左外卡钩、第二扭杆的右外卡钩分别卡勾在所述左、右前连杆的左、右前连杆卡钩部上,使得所述扭簧处于预紧状态,此时,所述第一扭杆的左外卡钩、第二扭杆的右外卡钩不接触所述左、右齿板连杆的外侧连杆的左、右外侧连杆卡钩部;
    当座椅坐垫倾角由正常位置切换至最大位置时,在转动过程中,所述左、右外侧连杆卡钩部勾住所述第一扭杆的左外卡钩、第二扭杆的右外卡钩,使得所述第一扭杆的左外卡钩、第二扭杆的右外卡钩脱离所述左、右前连杆卡钩部,从而使得所述扭簧产生较大扭矩;
    当座椅坐垫倾角由最大位置切换至正常位置时,所述第一扭杆的左外卡钩、第二扭杆的右外卡钩在扭力作用下对所述左、右外侧连杆卡钩部施加转动力,使得所述左、右齿板连杆的外侧连杆转动,从而使得座椅坐垫骨架总成复位。
  17. 如权利要求1所述的座椅倾角调节机构,其特征在于,在所述横向连杆上,在靠近其左、右端的位置处,设置有左、右Y向限位片。
  18. 如权利要求1所述的座椅倾角调节机构,其特征在于,所述驱动电机机构包括左、右驱动电机总成,所述左、右驱动电机总成固定安装在所述左、右倾转调节连杆的 内侧面上,并且以其输出端穿过所述左、右倾转调节连杆上的左、右轴孔并且露出于所述左、右倾转调节连杆的外侧面;
    所述齿轮齿条结构包括左、右驱动齿轮和左、右弧形齿条,所述左、右驱动齿轮固定安装在所述左、右驱动电机总成的输出端上,所述左、右弧形齿条的一端铰接在所述左、右底座连杆的前端部上并且位于所述左、右倾转调节连杆的前侧,并且通过挡点部件使得所述左、右弧形齿条与左、右驱动齿轮始终保持啮合状态;在驱动电机机构工作时,通过所述左、右驱动电机总成驱动所述左、右驱动齿轮进行转动,在所述第二左、右弧形齿条对所述左、右驱动齿轮的引导下,控制所述左、右倾转调节连杆的转动角度。
  19. 如权利要求18所述的座椅倾角调节机构,其特征在于,所述驱动电机机构还包括同步杆,所述同步杆位于所述左、右驱动电机总成之间,所述同步杆的左、右端穿入所述左、右驱动电机总成内并且与所述左、右驱动电机总成的输出端连接,以保证所述左、右驱动电机总成的同步度。
  20. 如权利要求18所述的座椅倾角调节机构,其特征在于,所述座椅倾角调节机构还包括连接弯管,所述连接弯管位于所述左、右倾转调节连杆之间,所述连接弯管的左、右端连接在所述左、右倾转调节连杆的内侧面上。
  21. 如权利要求18所述的座椅倾角调节机构,其特征在于,所述挡点部件设置在所述左、右倾转调节连杆上,并且在自身与所述左、右驱动齿轮之间形成左、右齿条限位间隙。
  22. 如权利要求18所述的座椅倾角调节机构,其特征在于,所述挡点部件包括左、右挡点螺栓,所述左、右挡点螺栓安装在所述左、右倾转调节连杆的外侧面上,所述左、右挡点螺栓与所述左、右驱动齿轮之间形成左、右齿条限位间隙,所述左、右弧形齿条在转动过程中始终位于所述左、右齿条限位间隙内,使得所述左、右驱动齿轮始终与所述左、右弧形齿条的内弧面上形成的凸齿啮合。
  23. 如权利要求18所述的座椅倾角调节机构,其特征在于,所述挡点部件包括左、右挡点螺栓和左、右消隙衬套,所述左、右消隙衬套通过所述左、右挡点螺栓固定安装在所述述左、右倾转调节连杆的外侧面上,所述左、右消隙衬套与所述左、右驱动齿轮 之间形成左、右齿条限位间隙,所述左、右弧形齿条在转动过程中始终位于所述左、右齿条限位间隙内,使得所述左、右驱动齿轮始终与所述左、右弧形齿条的内弧面上形成的凸齿啮合。
  24. 一种汽车座椅,其包括座椅座框总成、座椅坐垫骨架总成、座椅坐垫总成以及倾角调节机构,所述座椅坐垫骨架总成安装在所述座椅座框总成上,所述座椅坐垫总成包覆在所述座椅坐垫骨架总成的外周上,所述倾角调节机构设置在所述座椅座框总成与座椅坐垫骨架总成之间,用于调节所述座椅坐垫骨架总成相对于所述座椅座框总成的倾斜角度;其特征在于,所述倾角调节机构为如权利要求1至23中任一项所述的座椅倾角调节机构。
  25. 如权利要求24所述的汽车座椅,其特征在于,所述汽车座椅是零压座椅。
PCT/CN2022/096718 2021-12-16 2022-06-02 座椅倾角调节机构以及汽车零压座椅 WO2023109028A1 (zh)

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