WO2023124193A1 - 低坐姿的多向调节零重力座椅骨架 - Google Patents

低坐姿的多向调节零重力座椅骨架 Download PDF

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Publication number
WO2023124193A1
WO2023124193A1 PCT/CN2022/117027 CN2022117027W WO2023124193A1 WO 2023124193 A1 WO2023124193 A1 WO 2023124193A1 CN 2022117027 W CN2022117027 W CN 2022117027W WO 2023124193 A1 WO2023124193 A1 WO 2023124193A1
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WO
WIPO (PCT)
Prior art keywords
plate
connecting rod
slide rail
tooth plate
hinged
Prior art date
Application number
PCT/CN2022/117027
Other languages
English (en)
French (fr)
Inventor
唐江
覃朋
何杰
李树林
Original Assignee
麦格纳座椅研发(重庆)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 麦格纳座椅研发(重庆)有限公司 filed Critical 麦格纳座椅研发(重庆)有限公司
Priority to US18/095,494 priority Critical patent/US20230202357A1/en
Publication of WO2023124193A1 publication Critical patent/WO2023124193A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/68—Seat frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats 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
    • B60N2/10—Seats 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats 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
    • B60N2/16—Seats 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
    • B60N2/1605—Seats 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
    • B60N2/1625—Combination of rods and slides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/90—Details or parts not otherwise provided for
    • B60N2/995—Lower-leg-rests, e.g. calf-rests
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00—Safety belts or body harnesses in vehicles
    • B60R22/34—Belt retractors, e.g. reels

Definitions

  • the invention relates to the technical field of car seats, in particular to a low-sitting multi-directional adjustable zero-gravity seat frame.
  • Zero-gravity seats provide passengers with a more ergonomic and healthy riding posture, and are mostly suitable for the co-pilot or rear seats.
  • the zero-gravity seat posture can help reduce the pressure on the spine, relax the back muscles, and reduce the pressure on the heart. At the same time, it can promote blood circulation, enhance the comfort of the car, and better protect the health of the occupants.
  • the seat belt retractor of the zero-gravity seat must be installed on the seat body instead of the traditional Seats are also mounted on the body.
  • the retractor is generally set to not lock when the angle changes by 12°, and it can be locked if it is greater than 27°.
  • the adjustment angle of the backrest frame will exceed 27°, and the retractor will be locked and cannot be pulled out, which will affect normal use. Because of the zero-gravity adjustment, there are multiple rotation centers (backrest rotation, seat cushion rotation, etc.) Rotation, height adjustment rotation, etc.), the prior art cannot arrange the retractor with backrest angle compensation.
  • the present invention aims to provide a multi-directional adjustable zero-gravity seat frame with a low sitting posture.
  • the adjustable driving device takes up little space and can meet the seat arrangement with a low sitting posture;
  • the seat belt retractor of the seat frame can be arranged under the seat frame frame to solve the influence of zero gravity adjustment on the use of the seat belt retractor;
  • the leg support of the seat frame can not only be lifted from the storage position to the use position, but also can be extended and lengthened to meet the needs of different passengers and effectively relieve the leg fatigue caused by passengers riding for a long time in the car.
  • the present invention proposes a multi-directional adjustable zero-gravity seat frame with a low sitting posture, which includes a backrest frame, a seat frame frame, a left slide rail assembly and a right slide rail assembly.
  • the seat frame frame includes two The side panels, the front cross tube and the rear cross tube, and the two seat pan brackets arranged on the front cross tube, the left slide rail front bracket and the left slide rail rear bracket are arranged on the upper slide rail of the left slide rail assembly , the upper slide rail of the right slide rail assembly is provided with a right slide rail front bracket and a right slide rail rear bracket, and also includes a left front connecting rod, a left second front connecting rod, a right front connecting rod and a right rear connecting rod,
  • the lower end of the first left front connecting rod is hinged with the front bracket of the left slide rail, the upper end of the first left front connecting rod is hinged with the second left front connecting rod, and the other end of the second left front connecting rod is hinged with the front cross tube,
  • the seat belt retractor is arranged under the frame of the seat, and the retractor of the seat belt is fixed on the upper slide rails on the left and right sides through the retractor fixing bracket.
  • the front end of the seat frame skeleton is provided with a leg support
  • the leg support includes two leg support brackets, a lower support plate and an upper support plate, and the two leg support brackets are respectively fixed on the two seat pan supports, and the leg support cross bar is rotatably Set between the two leg support brackets, two four-bar linkage mechanisms are arranged on the left and right sides of the leg support cross bar, and the four-bar linkage mechanism includes a first linkage, a second linkage, a third linkage and a fourth linkage.
  • the lower support plate is provided with leg rest slide rails extending forward and backward.
  • the support plate is slidably connected on the leg support slide rail, and a second screw nut mechanism is provided between the lower support plate and the upper support plate, and the second screw nut mechanism can drive the upper support plate forward and backward along the leg support slide rail move.
  • the first tooth plate driving device includes an inclination adjustment tooth plate and an inclination adjustment motor
  • the inclination adjustment motor is fixed on the front transverse tube through the inclination adjustment motor fixing bracket
  • the front transverse tube is welded and fixed on both sides
  • the output shaft of the inclination adjustment motor is fitted with a first drive gear
  • the inclination adjustment tooth plate is a fan-shaped plate
  • the inclination adjustment tooth plate is hingedly mounted on the front transverse tube through a center hole.
  • the upper end of the right front connecting rod is hinged with the other end of the inclination adjustment tooth plate, the arc-shaped teeth of the inclination adjustment tooth plate face forward, the first driving gear meshes with the inclination adjustment tooth plate, and the left two front links are connected to the inclination angle adjustment tooth plate.
  • An inclination adjustment connecting plate is fixedly connected between the adjustment tooth plates.
  • the first tooth plate driving device is composed of a simple tooth plate and a motor, occupies a small space, and can meet the seat arrangement with a low sitting posture while realizing the adjustment of the inclination angle, and can reserve enough installation space for the seat belt retractor.
  • the second gear drive device includes a height adjustment tooth plate and a height adjustment motor
  • the height adjustment tooth plate is a fan-shaped plate
  • the height adjustment tooth plate is welded and fixed on the rear horizontal tube through a center hole.
  • the rear horizontal tube is hingedly installed between the two side plates, the other end of the height adjustment tooth plate is hinged with the rear bracket of the left slide rail, the arc-shaped teeth of the height adjustment tooth plate face forward, and the height adjustment motor passes through the height
  • the fixing bracket of the adjustment motor is fixed on the side plate on the left side.
  • the output shaft of the height adjustment motor is covered with a second drive gear, and the second drive gear meshes with the height adjustment tooth plate.
  • the second gear plate driving device is composed of a simple gear plate and a motor, which occupies a small space, and can meet the seat arrangement with a low sitting posture while realizing height adjustment.
  • the first screw and nut mechanism is composed of a first electric screw and a first nut, the first nut is fixed on the front horizontal tube, and the screw of the first electric screw is set on the first In the nut, the lower end of the driven rod is hinged on the motor of the first electric screw rod, and when the motor of the first electric screw rod drives the screw rod to rotate, the first electric screw rod moves linearly relative to the first nut, Thereby the driven rod is driven to rotate, and the rotation of the driven rod can drive the leg support cross bar to rotate.
  • the small space is conducive to the realization of a seat arrangement with a low sitting posture.
  • the second screw nut mechanism is composed of a second electric screw rod and a second nut, the extension direction of the screw rod of the second electric screw rod is consistent with the extension direction of the leg rest slide rail, and the first The second nut is set on the screw rod and fixed with the upper support plate.
  • the motor of the second electric screw rod drives the screw rod to rotate
  • the second nut can move along the extension direction of the screw rod, thereby driving the upper support plate to move along the leg rest.
  • the slide rail moves back and forth.
  • the movement of the upper support plate relative to the lower support plate is realized through a simple screw nut mechanism, so as to realize the extension and lengthening of the leg support to meet the needs of different passengers.
  • the leg support slide rail is a plastic slide rail
  • the plastic slide rail is made of a plastic plate with a honeycomb hollow
  • the plastic slide rail is provided with bolt holes
  • the upper support plate is provided with There are guide holes extending forward and backward, and connecting bolts pass through the guide holes and are fixed in the bolt holes to slidably connect the upper support plate and the plastic slide rail.
  • the connecting bolts cooperate with the guide holes to guide the movement of the upper support plate and prevent the upper support plate from being separated from the plastic slide rail.
  • the inclination adjustment tooth plate is provided with a first arc positioning hole
  • the first arc positioning hole is concentric with the inclination adjustment tooth plate
  • the inclination adjustment motor fixed bracket is provided with a first
  • the first pin shaft in the arc-shaped positioning hole when the inclination adjustment tooth plate is driven to rotate, the first pin shaft can rotate along the first arc-shaped positioning hole.
  • the first arc-shaped positioning hole cooperates with the first pin shaft to realize the overturn limit of the inclination adjustment tooth plate, preventing the inclination adjustment tooth plate from being separated from the first driving gear due to overturning.
  • the inner sides of the side plates on both sides are relatively welded with fixed bushings
  • the two ends of the front transverse tube are respectively passed through the two fixed bushings and welded to the corresponding side plates
  • the fixed bushing on the right side is welded with
  • the inclination adjustment motor electrolytic plate the other end of the inclination adjustment motor electrolytic plate is fixed on the inclination adjustment motor fixed bracket
  • the first drive gear and the inclination adjustment tooth plate are meshed between the inclination adjustment motor electrolytic plate and the inclination adjustment motor fixed bracket
  • the middle part of the electrolytic plate of the inclination adjustment motor is provided with a through hole for the output shaft of the inclination adjustment motor to pass through
  • the first pin shaft is fixedly connected with the electrolytic plate of the inclination adjustment motor after passing through the first arc-shaped positioning hole.
  • the electrolytic plate of the inclination adjustment motor protects the first drive gear, and can also increase the meshing stability of the first drive gear and the inclination adjustment tooth plate.
  • the height adjustment tooth plate is provided with a second arc positioning hole
  • the second arc positioning hole is concentric with the height adjustment tooth plate
  • the left side plate is provided with a second pin shaft inserted
  • the second pin shaft can rotate along the second arc-shaped positioning hole.
  • the second arc-shaped positioning hole cooperates with the second pin shaft to realize the overturn limit of the height adjustment tooth plate, preventing the height adjustment tooth plate from being separated from the second drive gear due to overturning.
  • a height-adjusting motor electrolytic plate covering the second drive gear is provided, and a power supply is provided in the middle of the height-adjusting motor electrolytic plate.
  • the electrolytic plate of the height adjustment motor protects the second drive gear, and can also increase the stability of the meshing between the second drive gear and the height adjustment tooth plate.
  • the inclination and height of the seat frame can be adjusted, and the combination of the two can realize zero-gravity adjustment, and the driving device for inclination and height adjustment takes up little space, which can meet the seat arrangement of low sitting posture, and is widely applicable to new energy vehicles .
  • the zero-gravity adjustment device of the traditional seat takes up a lot of space under the seat frame, which not only cannot meet the seat arrangement with a low sitting posture, but also has no installation space for the seat belt retractor under the seat frame; the zero-gravity adjustment device of the present invention is seated
  • the space under the frame frame is small, leaving enough space for the seat belt retractor to be installed, and the seat belt retractor is fixed between the two upper slide rails through the retractor fixing bracket, so that it will not be overturned by the seat frame Due to the influence of the overturning angle, the seat belt retractor cannot work normally, the seat belt retractor is automatically locked, and the seat belt cannot be pulled out due to the excessive turning angle.
  • leg rest at the front end of the seat frame.
  • the leg rest can be lifted from the storage position to the use position, and the extension of the leg rest can be realized through the second screw nut mechanism. Lengthened to meet the needs of different passengers, effectively relieve the leg fatigue caused by passengers taking a long time in the car.
  • Fig. 1 is a schematic diagram of the overall structure of the present invention.
  • Fig. 2 is a schematic diagram of the seat frame bracket.
  • Fig. 3 is a schematic diagram of another angle of the seat frame bracket.
  • Fig. 4 is a schematic diagram of the installation of the first gear plate driving device.
  • Fig. 5 is an exploded schematic view of the first gear plate driving device.
  • Fig. 6 is a structural schematic diagram of the leg rest.
  • Fig. 7 is an enlarged view at M in Fig. 3 .
  • Figure 8 is a rear view of the present invention.
  • Fig. 9 is a schematic diagram when the seat frame skeleton is adjusted to the lowest height.
  • Fig. 10 is a schematic diagram of the leg support when folded.
  • a low-sitting multi-directional adjustable zero-gravity seat frame is mainly composed of a backrest frame 1, a seat frame frame 2, a left slide rail assembly 3 and a right slide rail assembly 4.
  • the seat frame skeleton 2 includes side panels 5 on both sides, a front cross tube 6 and a rear cross tube 7, and two seat pan brackets 8 arranged on the front cross tube 6.
  • the upper slide rail of the left slide rail assembly 3 is provided with a left Slide rail front support 9 and left slide rail rear support 10
  • the upper slide rail of right slide rail assembly 4 is provided with right slide rail front support 11 and right slide rail rear support 12.
  • the lower end of the left front connecting rod 14 is hinged with the left slide rail front support 9, the upper end of the left first front connecting rod 14 is hinged with the left two front connecting rods 13, and the other end of the left two front connecting rods 13 is hinged with the front cross tube 6.
  • the lower end of the right front connecting rod 15 is hinged with the front bracket 11 of the right slide rail, and the first tooth plate driving device A is arranged between the upper end of the right front connecting rod 15 and the front cross tube 6, and the first tooth plate driving device A passes through the front cross tube 6
  • the inclination angle of the seat frame skeleton 2 is adjusted by the movement.
  • the lower end of the right rear connecting rod 16 is hinged with the right slide rail rear bracket 12, and the upper end of the right rear connecting rod 16 is fixedly connected with the rear cross tube 7, and a first
  • the two toothed plate driving device B, the second toothed plate driving device B can adjust the height of the seat frame skeleton 2 through the movement of the rear cross tube 7 .
  • a seat belt retractor 17 is provided below the seat frame skeleton 2, and the seat belt retractor 17 can be specifically arranged under the front cross tube 6, and the seat belt retractor 17 is fixed on the left and right sides by the retractor fixing bracket 18.
  • a seat belt guide bracket 19 is provided, so that the seat belt bypasses the rear cross tube 7 backwards, and then extends upwards to the backrest frame 1.
  • the front end of the seat frame skeleton 2 is provided with a leg support, and the leg support includes two leg support brackets 20, a lower support plate 26 and an upper support plate 27, and the two leg support supports 20 are respectively fixed on the two seat pan supports 8, and the leg support cross bar 21 It is rotatably arranged between the two leg support brackets 20 .
  • Two four-bar linkages C are oppositely arranged on the leg support cross bar 21.
  • the four-bar linkage C includes a first linkage 22, a second linkage 23, a third linkage 24 and a fourth linkage 25.
  • the first linkage The upper end of bar 22 is fixedly connected with leg support cross bar 21, the lower end of first connecting rod 22 is hinged with the upper end of second connecting rod 23, the middle part of second connecting rod 23 is hinged with the middle part of third connecting rod 24, and the second connecting rod 22 is hinged with the middle part of third connecting rod 24.
  • the rod 23 is hinged with the lower support plate 26, the upper end of the third connecting rod 24 is hinged with the leg support bracket 20 on the corresponding side, the lower end of the third connecting rod 24 is hinged with the upper end of the fourth connecting rod 25, and the lower end of the fourth connecting rod 25 is hinged. It is hinged with the lower support plate 26 , and each four-bar linkage C is spaced apart from two hinge points of the lower support plate 26 .
  • the front cross tube 6 is provided with a first screw nut mechanism D, the first screw nut mechanism D is hinged with the lower end of the driven rod 28, the upper end of the driven rod 28 is fixedly connected with the leg support cross bar 21, and the first screw nut mechanism D is hinged with the lower end of the driven rod 28.
  • the nut mechanism D can drive the driven rod 28 to rotate, thereby driving the leg support bar 21 to rotate, and then drives the four-bar linkage mechanism C to move, and the four-bar linkage mechanism C can drive the lower support plate 26 to be lifted to the use position or folded in storage Location.
  • the lower support plate 26 is provided with a leg support slide rail 29 extending forward and backward, and the upper support plate 27 is slidably connected to the leg support slide rail 29.
  • a second screw nut mechanism E is arranged between the lower support plate 26 and the upper support plate 27. , the second screw nut mechanism E can drive the upper support plate 27 to move back and forth along the leg support slide rail 29 .
  • the first tooth plate drive device A includes an inclination adjustment tooth plate 30 and an inclination adjustment motor 31, the inclination adjustment motor 31 is fixed on the front cross tube 6 through the inclination adjustment motor fixing bracket 32, and the front cross tube 6 is welded and fixed on the two sides. Between the side panels 5.
  • the first driving gear 33 is sleeved on the output shaft of the inclination adjustment motor 31, and the inclination adjustment tooth plate 30 is a sector plate, and the inclination adjustment tooth plate 30 is hingedly installed on the front cross tube 6 through the center hole of the circle, and the upper end of the right front connecting rod 15 is connected to the inclination angle.
  • the other end of the adjustment tooth plate 30 is hinged, the arc-shaped teeth of the inclination adjustment tooth plate 30 face forward, the first drive gear 33 meshes with the inclination adjustment tooth plate 30, and the second left front connecting rod 13 is fixedly connected with the inclination adjustment tooth plate 30
  • An inclination adjustment connecting plate 52 is arranged.
  • the left and right sides of the seat frame skeleton 2 can rotate synchronously, and at the same time because the first gear plate driving device A and the seat frame have formed a multi-link mechanism, when the inclination adjustment motor
  • the first drive gear 33 can drive the inclination adjustment tooth plate 30 to rotate around the front transverse tube 6, and the inclination adjustment tooth plate 30 can drive the right front connecting rod 15 to rotate when the inclination adjustment tooth plate 30 rotates, and the inclination adjustment tooth plate 30 and The right front connecting rod 15 rotates simultaneously and can adjust the position of the front cross tube 6 in height, thereby adjusting the inclination angle of the seat frame skeleton 2 .
  • the first tooth plate driving device A is composed of a simple tooth plate and a motor, and takes up little space. It can meet the seat arrangement with a low sitting posture while realizing the adjustment of the inclination angle, and can leave enough space for the seat belt retractor 17 to be installed. space.
  • the second gear drive device B includes a height adjustment tooth plate 34 and a height adjustment motor 35, and the height adjustment tooth plate 35 is a sector plate.
  • the height adjustment tooth plate 34 is welded and fixed on the rear horizontal tube 7 through the center hole, and the rear horizontal tube 7 is hingedly installed between the side plates 5 on both sides.
  • the other end of the height adjustment tooth plate 34 is hinged with the left slide rail rear bracket 10, and The arc-shaped teeth of the adjustment tooth plate 34 are forward.
  • the height adjustment motor 35 is fixed on the side plate 5 on the left side by the height adjustment motor fixing bracket.
  • the second toothed plate drive device B is composed of a simple toothed plate and a motor, which occupies a small space and can meet the seat arrangement with a low sitting posture while realizing height adjustment.
  • the first screw nut mechanism D is made up of a first electric screw mandrel 37 and a first nut 38, the first nut 38 is fixed on the front transverse tube 6, and the screw mandrel of the first electric screw mandrel 37 is sleeved on the first In the nut 38 , the lower end of the driven rod 28 is hinged on the motor of the first electric screw mandrel 37 .
  • the motor of the first electric screw mandrel 37 drives the screw mandrel to rotate
  • the first electric screw mandrel 37 moves linearly relative to the first nut 38, thereby driving the driven rod 28 to rotate, and the rotation of the driven rod 28 can drive the leg support cross bar 21 turn.
  • the second screw nut mechanism E is made up of a second electric screw mandrel 39 and a second nut 40, the extending direction of the screw mandrel of the second electric screw mandrel 39 is consistent with the extending direction of the leg rest slide rail 29, the second The nut 40 is sleeved on the threaded mandrel and fixed with the upper support plate 27 .
  • the motor of the second electric screw mandrel 39 drives the screw mandrel to rotate
  • the second nut 40 can move along the extending direction of the screw mandrel, thereby driving the upper support plate 27 to move back and forth along the leg support slide rail 29 .
  • the movement of the upper support plate 27 relative to the lower support plate 26 is realized by a simple screw nut mechanism, so as to realize the extension and lengthening of the leg support to meet the needs of different passengers.
  • the leg support slide rail 29 is a plastic slide rail
  • the plastic slide rail is made of a plastic plate with a honeycomb hollow
  • the plastic slide rail is provided with a bolt hole 41
  • the upper support plate 27 is provided with a guide extending forward and backward.
  • Holes 42, connecting bolts 43 pass through the guide holes 42 and are fixed in the bolt holes 41 to slidably connect the upper support plate 27 and the plastic slide rail.
  • the connecting bolt 43 not only cooperates with the guide hole 42 to guide the movement of the upper support plate 27, but also prevents the upper support plate 27 from being separated from the plastic slide rail.
  • the inclination adjustment tooth plate 30 is provided with a first arc-shaped positioning hole 44
  • the first arc positioning hole 44 is concentric with the inclination adjustment tooth plate 30
  • the inclination adjustment motor fixed bracket 32 is provided with a position inserted into the first arc.
  • the first pin shaft 45 in the arc-shaped positioning hole 44 when the inclination adjustment tooth plate 30 is driven to rotate, the first pin shaft 45 can rotate along the first arc-shaped positioning hole 44.
  • the first arc-shaped positioning hole 44 cooperates with the first pin shaft 45 to realize the overturn limit of the inclination adjustment tooth plate 30 , preventing the inclination adjustment tooth plate 30 from being separated from the first driving gear 33 due to overturning.
  • the inner sides of the side plates 5 are relatively welded with fixed bushings 46, and the two ends of the front transverse tube 6 pass through the two fixed bushes 46 and are welded to the corresponding side plates 5 respectively.
  • the fixed bushings on the right side 46 is welded with inclination adjustment motor electrolysis plate 47
  • the other end of inclination adjustment motor electrolysis plate 47 is fixed on the inclination adjustment motor fixed bracket 32
  • the first drive gear 33 is meshed with inclination adjustment tooth plate 30 on the inclination adjustment motor electrolysis plate 47
  • the middle part of the inclination adjustment motor electrolytic plate 47 is provided with a via hole for the output shaft of the inclination adjustment motor 31 to pass through, and the first bearing pin 45 passes through the first arc positioning hole 44 to meet the inclination angle.
  • the electrolytic plate 47 of the regulating motor is fixedly connected.
  • the electrolytic plate 47 of the inclination adjustment motor protects the first drive gear 33 and can also increase the stability of the engagement between the first drive gear 33 and
  • the height adjustment tooth plate 34 is provided with a second arc positioning hole 49
  • the second arc positioning hole 49 is concentric with the height adjustment tooth plate 34
  • the left side plate 5 is provided with a second pin 50 is inserted into the second arc-shaped positioning hole 49 , when the height adjusting tooth plate 34 is driven to rotate, the second pin shaft 50 can rotate along the second arc-shaped positioning hole 49 .
  • the second arc-shaped positioning hole 49 cooperates with the second pin shaft 50 to realize the overturn limit of the height adjustment tooth plate 34 , preventing the height adjustment tooth plate 34 from being separated from the second driving gear 36 due to overturning.
  • a height adjustment motor electrolysis plate 48 covered by the second drive gear 36 is provided, and the middle part of the height adjustment motor electrolysis plate 48 is provided with A through hole for the output shaft of the height adjustment motor 35 to pass through.
  • the electrolytic plate 48 of the height adjustment motor protects the second drive gear 36 and can also increase the stability of the engagement between the second drive gear 36 and the height adjustment tooth plate 34 .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Seats For Vehicles (AREA)
  • Automotive Seat Belt Assembly (AREA)

Abstract

一种低坐姿的多向调节零重力座椅骨架，左一前连杆（14）的下端与左滑轨前支架（9）铰接，上端与左二前连杆（13）铰接，左二前连杆（13）的另一端与前横管（6）铰接；右前连杆（15）的下端与右滑轨前支架（11）铰接，上端与前横管（6）之间设有第一齿板驱动装置（A），第一齿板驱动装置（A）能通过前横管（6）的运动调节座框骨架（2）的倾角；右后连杆（16）的下端与右滑轨后支架（12）铰接，上端与后横管（7）固定连接；左滑轨后支架（10）与左侧的侧边板（5）之间设有第二齿板驱动装置（B），第二齿板驱动装置（B）能通过后横管（7）的运动调节座框骨架（2）的高度；座框骨架（2）的下方设有安全带卷收器（17）。

Description

低坐姿的多向调节零重力座椅骨架 技术领域
本发明涉及汽车座椅技术领域，特别涉及一种低坐姿的多向调节零重力座椅骨架。
背景技术
为提高汽车座椅的乘座舒适性，座椅骨架各部分之间的多个连接处设计为可调节连接，以便于调节座椅姿态，从而对身体各部位起到充分而适当的支撑，基于此，提出了零重力座椅的概念。零重力座椅为乘客提供了一种更符合人体工学，更健康的乘坐姿态，多适用于副驾驶或后排座椅。零重力座椅姿态可以帮助减轻脊椎压力，舒张背部肌肉，减轻心脏压力，同时可以促进血液循环，能增强汽车的乘坐舒适度，同时更好地保护乘员的健康。
目前新能源汽车成为了汽车产业发展的重要趋势，而其动力来源于电池包，电池布置形式虽多种多样，但目前最长用的布置还是在整车底盘下方，这样必然会使整车地台升高，压缩了座椅布置的空间。但现有的零重力座椅一般采用电动调角器驱动或推杆驱动，电动调角器内部为凸轮结构，在运动过程中会承波浪摆动，舒适性较差；推杆驱动需要单独做遮蔽，成本较高；且两种驱动方式都需要较大的安装空间，无法实现低坐姿的座椅布置。
此外，零重力也带来了一些座椅附属结构设计的难题。例如，由于调节幅度较大，安全带无法有效约束住人体，发生紧急刹车或者碰撞时无法保护乘员安全，所以零重力座椅的安全带卷收器必须安装在座椅本体上，而不能像传统座椅一样安装在车身上。目前市面上出现了将安全带卷收器安装在靠背骨架上的座椅，卷收器一般设置为角度变化12°时不锁止，大于27度锁止即可，当卷收器布置在座椅靠背时， 在零重力座椅姿态下，靠背骨架调节角度会超出27°，卷收器会锁止，无法拉出，影响正常使用，因零重力调节有多个旋转中心(靠背旋转、坐垫旋转、调高旋转等)，现有技术无法布置带靠背角度补偿的卷收器。
发明内容
为了解决上述技术问题，本发明旨在提供一种低坐姿的多向调节零重力座椅骨架，该座椅骨架的倾角和高度均可调节，两者配合能实现零重力调节，且倾角和高度调节的驱动装置占用空间小，能满足低坐姿的座椅布置；该座椅骨架的安全带卷收器能布置在座框骨架的下方，以解决零重力调节对安全带卷收器使用的影响；该座椅骨架的腿托既能由收纳位置抬升至使用位置，又能延伸加长，以满足不同乘客的需求，有效缓解乘客长时间乘坐汽车时带来的腿部疲劳。
为了实现上述目的，本发明提出了一种低坐姿的多向调节零重力座椅骨架，包括靠背骨架、座框骨架、左滑轨总成和右滑轨总成，所述座框骨架包括两侧边板、前横管和后横管，以及设在前横管上的两坐盆支架，所述左滑轨总成的上滑轨上设有左滑轨前支架和左滑轨后支架，所述右滑轨总成的上滑轨上设有右滑轨前支架和右滑轨后支架，还包括左一前连杆、左二前连杆、右前连杆和右后连杆，所述左一前连杆的下端与左滑轨前支架铰接，所述左一前连杆的上端与左二前连杆铰接，所述左二前连杆的另一端与前横管铰接，所述右前连杆的下端与右滑轨前支架铰接，所述右前连杆的上端与前横管之间设有第一齿板驱动装置，所述第一齿板驱动装置能通过前横管的运动调节座框骨架的倾角；所述右后连杆的下端与右滑轨后支架铰接，所述右后连杆的上端与后横管固定连接，所述左滑轨后支架与左侧的侧边板之间设有第二齿板驱动装置，所述第二齿板驱动装置能通过后横管的运动调节座框骨架的高度；
所述座框骨架的下方设有安全带卷收器，所述安全带卷收器通过卷收器固定支 架固定在左右两侧的上滑轨上，所述座框骨架和靠背骨架上均设有安全带导向支架，使安全带向后绕过后横管，再向上延伸至靠背骨架上；
所述座框骨架的前端设有腿托，所述腿托包括两腿托支架、下支撑板和上支撑板，两腿托支架分别固定于两坐盆支架上，腿托横杆可转动地设置于两腿托支架之间，所述腿托横杆上左右相对设置有两四连杆机构，所述四连杆机构包括第一连杆、第二连杆、第三连杆和第四连杆，所述第一连杆的上端与腿托横杆固定连接，所述第一连杆的下端与第二连杆的上端铰接，所述第二连杆的中部与第三连杆的中部铰接，所述第二连杆的下端与下支撑板铰接，所述第三连杆的上端与对应侧的腿托支架铰接，所述第三连杆的下端与第四连杆的上端铰接，所述第四连杆的下端与下支撑板铰接，且每个四连杆机构与下支撑板的两铰接点间隔设置，所述前横管上设有第一丝杆螺母机构，所述第一丝杆螺母机构与从动杆的下端铰接，所述从动杆的上端与腿托横杆固定连接，所述第一丝杆螺母机构能带动从动杆转动，从而带动腿托横杆转动，进而带动四连杆机构运动，四连杆机构运动能带动下支撑板抬升至使用位置或收折在收纳位置，所述下支撑板上设有前后延伸的腿托滑轨，所述上支撑板滑动连接在腿托滑轨上，所述下支撑板与上支撑板之间设有第二丝杆螺母机构，所述第二丝杆螺母机构能带动上支撑板沿腿托滑轨前后移动。
上述方案中：所述第一齿板驱动装置包括倾角调节齿板和倾角调节电机，所述倾角调节电机通过倾角调节电机固定支架固定于前横管上，所述前横管焊接固定在两侧边板之间，所述倾角调节电机的输出轴上套装有第一驱动齿轮，所述倾角调节齿板为扇形板，所述倾角调节齿板通过圆心孔铰接安装在前横管上，所述右前连杆的上端与倾角调节齿板的另一端铰接，所述倾角调节齿板的弧形齿朝前，所述第一驱动齿轮与倾角调节齿板啮合，所述左二前连杆与倾角调节齿板之间固定连接有倾角调节连接板，当倾角调节电机驱动第一驱动齿轮转动时，第一驱动齿轮能带动倾角调节齿板绕前横管转动，倾角调节齿板转动时能带动右前连杆转动，倾角调节齿 板和右前连杆同时转动能调节前横管在高度上的位置，从而调节座框骨架的倾角。第一齿板驱动装置由简单的齿板和电机组成，占用空间小，在实现倾角调节的同时能满足低坐姿的座椅布置，且能为安全带卷收器留出了足够的安装空间。
上述方案中：所述第二齿轮驱动装置包括高度调节齿板和高度调节电机，所述高度调节齿板为扇形板，所述高度调节齿板通过圆心孔焊接固定在后横管上，所述后横管铰接安装在两侧边板之间，所述高度调节齿板的另一端与左滑轨后支架铰接，所述高度调节齿板的弧形齿朝前，所述高度调节电机通过高度调节电机固定支架固定在左侧的侧边板上，所述高度调节电机的输出轴上套装有第二驱动齿轮，所述第二驱动齿轮与高度调节齿板啮合，当高度调节电机驱动第二驱动齿轮转动时，第二驱动齿轮能驱动高度调节齿板带动后横管相对侧边板转动，高度调节齿板受驱绕左滑轨后支架转动同时能调节后横管在高度上的位置，从而调节座框骨架的高度。第二齿板驱动装置由简单的齿板和电机组成，占用空间小，在实现高度调节的同时能满足低坐姿的座椅布置。
上述方案中：所述第一丝杆螺母机构由第一电动丝杆和第一螺母组成，所述第一螺母固定在前横管上，所述第一电动丝杆的丝杆套装在第一螺母中，所述从动杆的下端铰接在第一电动丝杆的电机上，当第一电动丝杆的电机驱动丝杆转动时，所述第一电动丝杆相对第一螺母作直线运动，从而带动从动杆转动，从动杆转动能带动腿托横杆转动。通过第一丝杆螺母机构与从动杆联动，实现腿托横杆转动，进而实现腿托的翻转，该结构设计巧妙，第一电动丝杆能水平布设在座框骨架的下方，在高度上占用空间小，有利于实现低坐姿的座椅布置。
上述方案中：所述第二丝杆螺母机构由第二电动丝杆和第二螺母组成，所述第二电动丝杆的丝杆的延伸方向与腿托滑轨的延伸方向一致，所述第二螺母套装在该丝杆上且与上支撑板固定，当第二电动丝杆的电机驱动丝杆转动时，第二螺母能沿该丝杆的延伸方向移动，从而带动上支撑板沿腿托滑轨前后移动。通过简单的丝杆 螺母机构实现上支撑板相对下支撑板的移动，从而实现腿托的延伸加长，以满足不同乘客的需求。
上述方案中：所述腿托滑轨为塑料滑轨，所述塑料滑轨由带有蜂窝状镂空的塑料板制成，所述塑料滑轨上设有螺栓孔，所述上支撑板上设有前后延伸的导向孔，连接螺栓穿过导向孔固定在螺栓孔中将上支撑板与塑料滑轨滑动连接在一起。连接螺栓既与导向孔配合为上支撑板的移动起导向作用，又能防止上支撑板与塑料滑轨分离。
上述方案中：所述倾角调节齿板上设置有第一弧形定位孔，所述第一弧形定位孔与倾角调节齿板同圆心，所述倾角调节电机固定支架上设有插入到第一弧形定位孔中的第一销轴，所述倾角调节齿板受驱转动时，所述第一销轴能沿第一弧形定位孔转动。第一弧形定位孔与第一销轴配合实现对倾角调节齿板的翻转限位，防止倾角调节齿板由于翻转过度与第一驱动齿轮分离。
上述方案中：两侧边板的内侧相对焊接有固定轴套，所述前横管的两端分别穿过两固定轴套焊接在对应的侧边板上，右侧的固定轴套上焊接有倾角调节电机电解板，所述倾角调节电机电解板的另一端固定在倾角调节电机固定支架上，所述第一驱动齿轮与倾角调节齿板啮合在倾角调节电机电解板和倾角调节电机固定支架之间，所述倾角调节电机电解板的中部设有供倾角调节电机的输出轴穿过的过孔，所述第一销轴穿过第一弧形定位孔后与倾角调节电机电解板固定连接。倾角调节电机电解板对第一驱动齿轮起保护作用，还能增加第一驱动齿轮和倾角调节齿板啮合的稳定性。
上述方案中：所述高度调节齿板上设置有第二弧形定位孔，所述第二弧形定位孔与高度调节齿板同圆心，左侧的侧边板上设置有第二销轴插入到第二弧形定位孔中，高度调节齿板受驱转动时，第二销轴能沿第二弧形定位孔转动。第二弧形定位孔与第二销轴配合实现对高度调节齿板的翻转限位，防止高度调节齿板由于翻转过 度与第二驱动齿轮分离。
上述方案中：所述第二销轴的自由端与左侧侧边板的内侧之间设有将第二驱动齿轮覆盖的高度调节电机电解板，所述高度调节电机电解板的中部设有供高度调节电机的输出轴穿过的过孔。高度调节电机电解板对第二驱动齿轮起保护作用，还能增加第二驱动齿轮和高度调节齿板啮合的稳定性。
本发明的有益效果是：
1、该座椅骨架的倾角和高度均可调节，两者配合能实现零重力调节，且倾角和高度调节的驱动装置占用空间小，能满足低坐姿的座椅布置，广泛适用于新能源汽车。
2、传统座椅的零重力调节装置在座框骨架下方占用空间大，不仅无法满足低坐姿的座椅布置，且座框骨架下方没有安全带卷收器的安装空间；本发明的零重力调节装置在座框骨架下方占用空间小，为安全带卷收器留出了足够的安装空间，通过卷收器固定支架将安全带卷收器定在两上滑轨之间，使其不受座椅骨架翻转的影响，避免了由于翻转角度过大，安全带卷收器无法正常工作、安全带卷收器自动锁止、安全带无法拉出的情况出现。
3、座框骨架的前端设有腿托，通过第一丝杆螺母机构和四连杆机构配合能实现腿托由收纳位置抬升至使用位置，通过第二丝杆螺母机构能实现腿托的延伸加长，以满足不同乘客的需求，有效缓解乘客长时间乘坐汽车时带来的腿部疲劳。
附图说明
图1是本发明的整体结构示意图。
图2是座框支架的示意图。
图3是座框支架的另一个角度的示意图。
图4是第一齿板驱动装置的安装示意图。
图5是第一齿板驱动装置的分解示意图。
图6是腿托的结构示意图。
图7是图3中M处的放大视图。
图8是本发明的后视图。
图9是座框骨架调节到最低高度时的示意图。
图10是腿托收折时的示意图。
具体实施方式
如图1—10所示，一种低坐姿的多向调节零重力座椅骨架，主要由靠背骨架1、座框骨架2、左滑轨总成3和右滑轨总成4组成。座框骨架2包括两侧边板5、前横管6和后横管7，以及设在前横管6上的两坐盆支架8，左滑轨总成3的上滑轨上设有左滑轨前支架9和左滑轨后支架10，右滑轨总成4的上滑轨上设有右滑轨前支架11和右滑轨后支架12。
左一前连杆14的下端与左滑轨前支架9铰接，左一前连杆14的上端与左二前连杆13铰接，左二前连杆13的另一端与前横管6铰接。右前连杆15的下端与右滑轨前支架11铰接，右前连杆15的上端与前横管6之间设有第一齿板驱动装置A，第一齿板驱动装置A通过前横管6的运动调节座框骨架2的倾角。右后连杆16的下端与右滑轨后支架12铰接，右后连杆16的上端与后横管7固定连接，左滑轨后支架10与左侧的侧边板5之间设有第二齿板驱动装置B，第二齿板驱动装置B能通过后横管7的运动调节座框骨架2的高度。
座框骨架2的下方设有安全带卷收器17，安全带卷收器17具体可以设置在前横管6的下方，安全带卷收器17通过卷收器固定支架18固定在左右两侧的上滑轨上，座框骨架2和靠背骨架1上均设有安全带导向支架19，使安全带向后绕过后横管7，再向上延伸至靠背骨架1上。
座框骨架2的前端设有腿托，腿托包括两腿托支架20、下支撑板26和上支撑板27，两腿托支架20分别固定于两坐盆支架8上，腿托横杆21可转动地设置于两腿托支架20之间。腿托横杆21上左右相对设置有两四连杆机构C，四连杆机构C包括第一连杆22、第二连杆23、第三连杆24和第四连杆25，第一连杆22的上端与腿托横杆21固定连接，第一连杆22的下端与第二连杆23的上端铰接，第二连杆23的中部与第三连杆24的中部铰接，第二连杆23与下支撑板26铰接，第三连杆24的上端与对应侧的腿托支架20铰接，第三连杆24的下端与第四连杆25的上端铰接，第四连杆25的下端与下支撑板26铰接，且每个四连杆机构C与下支撑板26的两铰接点间隔设置。前横管6上设有第一丝杆螺母机构D，第一丝杆螺母机构D与从动杆28的下端铰接，从动杆28的上端与腿托横杆21固定连接，第一丝杆螺母机构D能带动从动杆28转动，从而带动腿托横杆21转动，进而带动四连杆机构C运动，四连杆机构C运动能带动下支撑板26抬升至使用位置或收折在收纳位置。下支撑板26上设有前后延伸的腿托滑轨29，上支撑板27滑动连接在腿托滑轨29上，下支撑板26与上支撑板27之间设有第二丝杆螺母机构E，第二丝杆螺母机构E能带动上支撑板27沿腿托滑轨29前后移动。
最好是，第一齿板驱动装置A包括倾角调节齿板30和倾角调节电机31，倾角调节电机31通过倾角调节电机固定支架32固定于前横管6上，前横管6焊接固定在两侧边板5之间。倾角调节电机31的输出轴上套装有第一驱动齿轮33，倾角调节齿板30为扇形板，倾角调节齿板30通过圆心孔铰接安装在前横管6上，右前连杆15的上端与倾角调节齿板30的另一端铰接，倾角调节齿板30的弧形齿朝前，第一驱动齿轮33与倾角调节齿板30啮合，左二前连杆13与倾角调节齿板30之间固定连接有倾角调节连接板52。由于增加了右前连杆15和倾角调节连接板52，座框骨架2的左右侧能同步旋转，同时又由于第一齿板驱动装置A与座椅骨架构成了多连杆机构，当倾角调节电机31驱动第一驱动齿轮33转动时，第一驱动齿轮33能带动 倾角调节齿板30绕前横管6转动，倾角调节齿板30转动时能带动右前连杆15转动，倾角调节齿板30和右前连杆15同时转动能调节前横管6在高度上的位置，从而调节座框骨架2的倾角。第一齿板驱动装置A由简单的齿板和电机组成，占用空间小，在实现倾角调节的同时能满足低坐姿的座椅布置，且能为安全带卷收器17留出了足够的安装空间。
最好是，第二齿轮驱动装置B包括高度调节齿板34和高度调节电机35，高度调节齿板35为扇形板。高度调节齿板34通过圆心孔焊接固定在后横管7上，后横管7铰接安装在两侧边板5之间，高度调节齿板34的另一端与左滑轨后支架10铰接，高度调节齿板34的弧形齿朝前。高度调节电机35通过高度调节电机固定支架固定在左侧的侧边板5上，高度调节电机35的输出轴上套装有第二驱动齿轮36，第二驱动齿轮36与高度调节齿板34啮合。由于第二齿板驱动装置B与座椅骨架构成了多连杆机构，当高度调节电机35驱动第二驱动齿轮36转动时，第二驱动齿轮36能驱动高度调节齿板35带动后横管7相对侧边板5转动，高度调节齿板35受驱也会绕左滑轨后支架10转动，高度调节齿板35转动同时能调节后横管7在高度上的位置，从而调节座框骨架2的高度。第二齿板驱动装置B由简单的齿板和电机组成，占用空间小，在实现高度调节的同时能满足低坐姿的座椅布置。
最好是，第一丝杆螺母机构D由第一电动丝杆37和第一螺母38组成，第一螺母38固定在前横管6上，第一电动丝杆37的丝杆套装在第一螺母38中，从动杆28的下端铰接在第一电动丝杆37的电机上。当第一电动丝杆37的电机驱动丝杆转动时，第一电动丝杆37相对第一螺母38作直线运动，从而带动从动杆28转动，从动杆28转动能带动腿托横杆21转动。通过第一丝杆螺母机构D与从动杆28联动，实现腿托横杆21转动，进而实现腿托的翻转，该结构设计巧妙，第一电动丝杆37能水平布设在座框骨架2的下方，在高度上占用空间小，有利于实现低坐姿的座椅布置。
最好是，第二丝杆螺母机构E由第二电动丝杆39和第二螺母40组成，第二电动丝杆39的丝杆的延伸方向与腿托滑轨29的延伸方向一致，第二螺母40套装在该丝杆上且与上支撑板27固定。当第二电动丝杆39的电机驱动丝杆转动时，第二螺母40能沿该丝杆的延伸方向移动，从而带动上支撑板27沿腿托滑轨29前后移动。通过简单的丝杆螺母机构实现上支撑板27相对下支撑板26的移动，从而实现腿托的延伸加长，以满足不同乘客的需求。
最好是，腿托滑轨29为塑料滑轨，塑料滑轨由带有蜂窝状镂空的塑料板制成，塑料滑轨上设有螺栓孔41，上支撑板27上设有前后延伸的导向孔42，连接螺栓43穿过导向孔42固定在螺栓孔41中将上支撑板27与塑料滑轨滑动连接在一起。连接螺栓43既与导向孔42配合为上支撑板27的移动起导向作用，又能防止上支撑板27与塑料滑轨分离。
最好是，倾角调节齿板30上设置有第一弧形定位孔44，第一弧形定位孔44与倾角调节齿板30同圆心，倾角调节电机固定支架32上设有插入到第一弧形定位孔44中的第一销轴45，倾角调节齿板30受驱转动时，第一销轴45能沿第一弧形定位孔44转动。第一弧形定位孔44与第一销轴45配合实现对倾角调节齿板30的翻转限位，防止倾角调节齿板30由于翻转过度与第一驱动齿轮33分离。
最好是，两侧边板5的内侧相对焊接有固定轴套46，前横管6的两端分别穿过两固定轴套46焊接在对应的侧边板5上，右侧的固定轴套46上焊接有倾角调节电机电解板47，倾角调节电机电解板47的另一端固定在倾角调节电机固定支架上32，第一驱动齿轮33与倾角调节齿板30啮合在倾角调节电机电解板47和倾角调节电机固定支架32之间，倾角调节电机电解板47的中部设有供倾角调节电机31的输出轴穿过的过孔，第一销轴45穿过第一弧形定位孔44后与倾角调节电机电解板47固定连接。倾角调节电机电解板47对第一驱动齿轮33起保护作用，还能增加第一驱动齿轮33和倾角调节齿板30啮合的稳定性。
最好是，高度调节齿板34上设置有第二弧形定位孔49，第二弧形定位孔49与高度调节齿板34同圆心，左侧的侧边板5上设置有第二销轴50插入到第二弧形定位孔49中，高度调节齿板34受驱转动时，第二销轴50能沿第二弧形定位孔49转动。第二弧形定位孔49与第二销轴50配合实现对高度调节齿板34的翻转限位，防止高度调节齿板34由于翻转过度与第二驱动齿轮36分离。
最好是，第二销轴50的自由端与左侧侧边板5的内侧之间设有将第二驱动齿轮36覆盖的高度调节电机电解板48，高度调节电机电解板48的中部设有供高度调节电机35的输出轴穿过的过孔。高度调节电机电解板48对第二驱动齿轮36起保护作用，还能增加第二驱动齿轮36和高度调节齿板34啮合的稳定性。

Claims (10)

  1. 一种低坐姿的多向调节零重力座椅骨架，包括靠背骨架(1)、座框骨架(2)、左滑轨总成(3)和右滑轨总成(4)，所述座框骨架(2)包括两侧边板(5)、前横管(6)和后横管(7)，以及设在前横管(6)上的两坐盆支架(8)，所述左滑轨总成(3)的上滑轨上设有左滑轨前支架(9)和左滑轨后支架(10)，所述右滑轨总成(4)的上滑轨上设有右滑轨前支架(11)和右滑轨后支架(12)，其特征在于：
    还包括左一前连杆(14)、左二前连杆(13)、右前连杆(15)和右后连杆(16)，所述左一前连杆(14)的下端与左滑轨前支架(9)铰接，所述左一前连杆(14)的上端与左二前连杆(13)铰接，所述左二前连杆(13)的另一端与前横管(6)铰接，所述右前连杆(15)的下端与右滑轨前支架(11)铰接，所述右前连杆(15)的上端与前横管(6)之间设有第一齿板驱动装置(A)，所述第一齿板驱动装置(A)能通过前横管(6)的运动调节座框骨架(2)的倾角；所述右后连杆(16)的下端与右滑轨后支架(12)铰接，所述右后连杆(16)的上端与后横管(7)固定连接，所述左滑轨后支架(10)与左侧的侧边板(5)之间设有第二齿板驱动装置(B)，所述第二齿板驱动装置(B)能通过后横管(7)的运动调节座框骨架(2)的高度；
    所述座框骨架(2)的下方设有安全带卷收器(17)，所述安全带卷收器(17)通过卷收器固定支架(18)固定在左右两侧的上滑轨上，所述座框骨架(2)和靠背骨架(1)上均设有安全带导向支架(19)，使安全带向后绕过后横管(7)，再向上延伸至靠背骨架(1)上；
    所述座框骨架(2)的前端设有腿托，所述腿托包括两腿托支架(20)、下支撑板(26)和上支撑板(27)，两腿托支架(20)分别固定于两坐盆支架(8)上，腿托横杆(21)可转动地设置于两腿托支架(20)之间，所述腿托横杆(21)上左右相对设置有两四连杆机构(C)，所述四连杆机构(C)包括第一连杆(22)、第二连 杆(23)、第三连杆(24)和第四连杆(25)，所述第一连杆(22)的上端与腿托横杆(21)固定连接，所述第一连杆(22)的下端与第二连杆(23)的上端铰接，所述第二连杆(23)的中部与第三连杆(24)的中部铰接，所述第二连杆(23)的下端与下支撑板(26)铰接，所述第三连杆(24)的上端与对应侧的腿托支架(20)铰接，所述第三连杆(24)的下端与第四连杆(25)的上端铰接，所述第四连杆(25)的下端与下支撑板(26)铰接，且每个四连杆机构(C)与下支撑板(26)的两铰接点间隔设置，所述前横管(6)上设有第一丝杆螺母机构(D)，所述第一丝杆螺母机构(D)与从动杆(28)的下端铰接，所述从动杆(28)的上端与腿托横杆(21)固定连接，所述第一丝杆螺母机构(D)能带动从动杆(28)转动，从而带动腿托横杆(21)转动，进而带动四连杆机构(C)运动，四连杆机构(C)运动能带动下支撑板(26)抬升至使用位置或收折在收纳位置，所述下支撑板(26)上设有前后延伸的腿托滑轨(29)，所述上支撑板(27)滑动连接在腿托滑轨(29)上，所述下支撑板(26)与上支撑板(27)之间设有第二丝杆螺母机构(E)，所述第二丝杆螺母机构(E)能带动上支撑板(27)沿腿托滑轨(29)前后移动。
  2. 根据权利要求1所述的低坐姿的多向调节零重力座椅骨架，其特征在于：所述第一齿板驱动装置(A)包括倾角调节齿板(30)和倾角调节电机(31)，所述倾角调节电机(31)通过倾角调节电机固定支架(32)固定于前横管(6)上，所述前横管(6)焊接固定于两侧边板(5)之间，所述倾角调节电机(31)的输出轴上套装有第一驱动齿轮(33)，所述倾角调节齿板(30)为扇形板，所述倾角调节齿板(30)通过圆心孔铰接安装在前横管(6)上，所述右前连杆(15)的上端与倾角调节齿板(30)的另一端铰接，所述倾角调节齿板(30)的弧形齿朝前，所述第一驱动齿轮(33)与倾角调节齿板(30)啮合，所述左二前连杆(13)与倾角调节齿板(30)之间固定连接有倾角调节连接板(52)，倾角调节电机(31)驱动第一驱动齿轮(33)转动时，第一驱动齿轮(33)能带动倾角调节齿板(30)绕前横管(6)转动，倾角 调节齿板(30)转动时能带动右前连杆(15)转动，倾角调节齿板(30)和右前连杆(15)同时转动能调节前横管(6)在高度上的位置，从而调节座框骨架(2)的倾角。
  3. 根据权利要求1所述的低坐姿的多向调节零重力座椅骨架，其特征在于：所述第二齿轮驱动装置(B)包括高度调节齿板(34)和高度调节电机(35)，所述高度调节齿板(35)为扇形板，所述高度调节齿板(34)通过圆心孔焊接固定在后横管(7)上，所述后横管(7)铰接安装在两侧边板(5)之间，所述高度调节齿板(34)的另一端与左滑轨后支架(10)铰接，所述高度调节齿板(34)的弧形齿朝前，所述高度调节电机(35)通过高度调节电机固定支架固定在左侧的侧边板(5)上，所述高度调节电机(35)的输出轴上套装有第二驱动齿轮(36)，所述第二驱动齿轮(36)与高度调节齿板(34)啮合，高度调节电机(35)驱动第二驱动齿轮(36)转动时，第二驱动齿轮(36)能驱动高度调节齿板(35)带动后横管(7)相对侧边板(5)转动，高度调节齿板(35)受驱绕左滑轨后支架(10)转动同时能调节后横管(7)在高度上的位置，从而调节座框骨架(2)的高度。
  4. 根据权利要求1所述的低坐姿的多向调节零重力座椅骨架，其特征在于：所述第一丝杆螺母机构(D)由第一电动丝杆(37)和第一螺母(38)组成，所述第一螺母(38)固定在前横管(6)上，所述第一电动丝杆(37)的丝杆套装在第一螺母(38)中，所述从动杆(28)的下端铰接在第一电动丝杆(37)的电机上，第一电动丝杆(37)的电机驱动丝杆转动时，所述第一电动丝杆(37)相对第一螺母(38)作直线运动，从而带动从动杆(28)转动，从动杆(28)转动能带动腿托横杆(21)转动。
  5. 根据权利要求1所述的低坐姿的多向调节零重力座椅骨架，其特征在于：所述第二丝杆螺母机构(E)由第二电动丝杆(39)和第二螺母(40)组成，所述第二电动丝杆(39)的丝杆的延伸方向与腿托滑轨(29)的延伸方向一致，所述第二螺 母(40)套装在该丝杆上且与上支撑板(27)固定，第二电动丝杆(39)的电机驱动丝杆转动时，第二螺母(40)能沿该丝杆的延伸方向移动，从而带动上支撑板(27)沿腿托滑轨(29)前后移动。
  6. 根据权利要求5所述的低坐姿的多向调节零重力座椅骨架，其特征在于：所述腿托滑轨(29)为塑料滑轨，所述塑料滑轨由带有蜂窝状镂空的塑料板制成，所述塑料滑轨上设有螺栓孔(41)，所述上支撑板(27)上设有前后延伸的导向孔(42)，连接螺栓(43)穿过导向孔(42)固定在螺栓孔(41)中将上支撑板(27)与塑料滑轨滑动连接在一起。
  7. 根据权利要求2所述的低坐姿的多向调节零重力座椅骨架，其特征在于：所述倾角调节齿板(30)上设置有第一弧形定位孔(44)，所述第一弧形定位孔(44)与倾角调节齿板(30)同圆心，所述倾角调节电机固定支架(32)上设有插入到第一弧形定位孔(44)中的第一销轴(45)，所述倾角调节齿板(30)受驱转动时，所述第一销轴(45)能沿第一弧形定位孔(44)转动。
  8. 根据权利要求7所述的低坐姿的多向调节零重力座椅骨架，其特征在于：两侧边板(5)的内侧相对焊接有固定轴套(46)，所述前横管(6)的两端分别穿过两固定轴套(46)焊接在对应的侧边板(5)上，右侧的固定轴套(46)上焊接有倾角调节电机电解板(47)，所述倾角调节电机电解板(47)的另一端固定在倾角调节电机固定支架上(32)，所述第一驱动齿轮(33)与倾角调节齿板(30)啮合在倾角调节电机电解板(47)和倾角调节电机固定支架(32)之间，所述倾角调节电机电解板(47)的中部设有供倾角调节电机(31)的输出轴穿过的过孔，所述第一销轴(45)穿过第一弧形定位孔(44)后与倾角调节电机电解板(47)固定连接。
  9. 根据权利要求3所述的低坐姿的多向调节零重力座椅骨架，其特征在于：所述高度调节齿板(34)上设置有第二弧形定位孔(49)，所述第二弧形定位孔(49)与高度调节齿板(34)同圆心，左侧的侧边板(5)上设置有第二销轴(50)插入到 第二弧形定位孔(49)中，高度调节齿板(34)受驱转动时，第二销轴(50)能沿第二弧形定位孔(49)转动。
  10. 根据权利要求9所述的低坐姿的多向调节零重力座椅骨架，其特征在于：所述第二销轴(50)的自由端与左侧侧边板(5)的内侧之间设有将第二驱动齿轮(36)覆盖的高度调节电机电解板(48)，所述高度调节电机电解板(48)的中部设有供高度调节电机(35)的输出轴穿过的过孔。
PCT/CN2022/117027 2021-12-28 2022-09-05 低坐姿的多向调节零重力座椅骨架 WO2023124193A1 (zh)

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