WO2023005876A1 - 一种连续旋转一体式腿托 - Google Patents

一种连续旋转一体式腿托 Download PDF

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Publication number
WO2023005876A1
WO2023005876A1 PCT/CN2022/107628 CN2022107628W WO2023005876A1 WO 2023005876 A1 WO2023005876 A1 WO 2023005876A1 CN 2022107628 W CN2022107628 W CN 2022107628W WO 2023005876 A1 WO2023005876 A1 WO 2023005876A1
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Prior art keywords
extension
bracket
leg
leg rest
support
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PCT/CN2022/107628
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English (en)
French (fr)
Inventor
俞洁
张寅�
黄礼雅
毛爱华
戴张薇
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延锋国际汽车技术有限公司
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Publication of WO2023005876A1 publication Critical patent/WO2023005876A1/zh

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    • 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
    • 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

Definitions

  • the present invention relates to car seats, and more particularly to a continuously rotating integrated leg rest.
  • leg rest is an accessory on a car seat, and is mainly used to assist in increasing the leg support area of a passenger to improve riding comfort.
  • the leg rests in the prior art are all discontinuous.
  • One motor is used to rotate and flip, and the other motor is used to extend and extend. This not only leads to high cost, but also presents a segmented overall appearance.
  • the present invention provides a continuously rotating integrated leg rest.
  • the continuous rotation integrated leg rest of the present invention includes a leg rest turning structure, a leg rest extension structure and a leg rest extension driving structure, wherein the leg rest turning structure is reversibly installed on the cushion frame, and the leg rest turning structure includes a support arm, synchronous rod and a single motor, wherein the synchronous rod is connected to the motor, the support arm is connected to the synchronous rod to be driven by the motor to rotate around the central axis of the synchronous rod, and the leg rest extension structure is extensible through the leg rest extension drive structure Mounted on the leg rest flip structure to be continuously flipped and extended simultaneously between the initial position and the deployed position.
  • the leg rest extension drive mechanism is a cord reel drive zipper mechanism.
  • the leg rest turning structure also includes a wire take-up reel, a pulley fixing plate and a pretensioner, wherein the wire take-up reel is sleeved on the synchronous rod to rotate synchronously with it under the drive of the motor, and the pulley is fixed
  • the plate and the pretensioner are respectively fixed on the supporting arm to be turned over synchronously with it driven by the motor.
  • the leg support extension driving structure includes a rear roller bracket, a front roller bracket, a pretensioner bracket and a steel wire, wherein the rear roller bracket and the front roller bracket are fixedly installed on the pulley fixing plate respectively, and the pretensioner bracket Installed on the pretensioner, one end of the steel wire is fixed on the wire take-up reel, passing through the rear roller bracket, front roller bracket and pretensioner bracket in turn, and the other end of the steel wire is wound and fixed on the wire take-up reel to form a closed loop.
  • the first small roller is rotatably installed on the rear roller bracket
  • the large roller is rotatably installed on the front roller bracket
  • the second small roller is rotatably installed on the pretensioner bracket
  • the steel wires are sequentially Guided by means of a first small roller, a large roller and a second small roller.
  • the leg support extension driving structure further includes a steel wire restriction lower block and a restriction block upper block, wherein the steel wire restriction lower block is fixed on the leg support extension structure, the steel wire has a restriction block, and the restriction block is placed under the restriction of the steel wire In the block and fixed by covering the upper block of the restriction block, the leg support extension structure is driven by the walking of the steel wire.
  • the leg support extension structure includes a sliding rod cover and an extension mechanism, wherein the sliding rod cover is fixed on the support arm, and the extension mechanism is docked with the sliding rod cover.
  • the extension mechanism includes a restriction block fixing bracket, a sliding rod and an extension block, wherein the restriction block fixing bracket fixedly connected with the steel wire restriction lower block is fixedly connected with the extension block, and the sliding rod inserted into the sliding rod sleeve is slidably fitted. Fixed with extension block.
  • the support arm includes an outer leg rest support, a recliner and an inner leg rest support, wherein the outer leg rest support is fixed on the cushion frame, and the inner leg support support is reversibly installed on the leg rest through the recliner On the outer bracket, the recliner is driven and connected with the synchronous rod to drive the turning of the inner bracket of the leg rest through the motor.
  • the leg support turning structure includes two support arms arranged symmetrically, and a synchronization rod is connected between the two support arms to drive the two support arms synchronously.
  • Fig. 1 is an exploded view of the cushion assembly, which shows the assembly relationship between the continuously rotating one-piece leg rest and the cushion skeleton according to a preferred embodiment of the present invention
  • Fig. 2 is a schematic diagram of the adjustment process of the cushion assembly of Fig. 1, which shows the adjustment process of the continuously rotating integrated leg rest between the initial position and the deployed position;
  • Fig. 3 is a schematic diagram of the overall structure of the continuously rotating integrated leg rest of Fig. 1;
  • Fig. 4 is an exploded view of the leg rest turning structure of Fig. 3;
  • Fig. 5 is an exploded view of the leg support extension structure of Fig. 3;
  • Fig. 6 is an exploded view of the leg support extension driving structure of Fig. 3;
  • Fig. 7 is a structural schematic diagram of the wire reel driving zipper mechanism in Fig. 6;
  • FIG. 8 is a cross-sectional view of the reel-driven zipper mechanism of FIG. 7;
  • Fig. 9 is a schematic diagram of the adjustment process of the reel-driven zipper mechanism of Fig. 7;
  • Fig. 10 is a schematic diagram of the adjustment process of the leg rest extension structure in Fig. 5, which shows the adjustment process of the extension mechanism between the initial position and the unfolded position.
  • the seat cushion assembly of a car seat includes a continuously rotating one-piece leg rest 101 and a cushion skeleton 102 according to a preferred embodiment of the present invention, wherein the continuously rotating one-piece leg rest 101 is welded and fixed on the cushion skeleton 102 to form a cushion assembly, which is connected with the backrest assembly as a whole to form a complete car seat.
  • the continuously rotating integrated leg rest 101 is vertically arranged in front of the cushion frame 102 at the initial position, and the continuously rotating integrated leg rest 101 is lifted forward to the maximum angle and extended downward to In the longest position, in particular, driven by a single motor, the continuously rotating one-piece leg rest 101 is continuously flipped and extended at the intermediate position between the initial position and the unfolded position, that is, it is lifted forward and extended downward at the same time. , and shorten upwards while falling backwards and retracting.
  • the continuous rotation integrated leg rest 101 includes a leg rest turning structure 101a, a leg rest extension structure 101b and a leg rest extension driving structure 101c, wherein the leg rest turning structure 101a is reversibly installed on the cushion frame 102 ( Referring to FIG. 1 ), the leg support extension structure 101b is extensibly installed on the leg support turning structure 101a through the leg support extension driving structure 101c.
  • the leg rest turning structure 101a includes a right side support arm 200, a left side support arm 210, a synchronization lever 300 and a motor 310, wherein the synchronization lever 300 is connected to the motor 310, and the right side support arm 200 and the left side support
  • the arms 210 are respectively connected to opposite ends of the synchronization rod 300 to synchronously drive the right support arm 200 and the left support arm 210 to rotate around the central axis of the synchronization rod 300 through the motor 310 .
  • the right side support arm 200 includes a right leg support outer support 110, a right recliner 111 and a right leg support inner support 112, and the right leg support outer support 110 is welded and fixed on the cushion frame 102 (see Fig.
  • the support inner support 112 is reversibly installed on the right leg support outer support 110 through the right recliner 111; similarly, the left support arm 210 includes the left leg support outer support 113, the left recliner 114 and the left leg support inner support 115, the left leg support outer support 113 is welded and fixed on the cushion frame 102 (see Fig. 1), the left leg support inner support 115 is reversibly installed on the left leg support outer support 113 through the left recliner 114; the right recliner 111 and the left recliner 114 are respectively driven and connected to opposite ends of the synchronous rod 300 to synchronously drive the turning of the right leg rest inner support 112 and the left leg rest inner support 115 through the motor 310 .
  • the leg rest turning structure 101a also includes a fastener 320 and a motor bracket 330, wherein the motor 310 is installed and fixed on the left side of the motor bracket 330 by a fastener 320 (such as a screw), and the right leg rest outer bracket 110 and the left leg support outer bracket 113 are respectively welded on opposite sides of the motor bracket 330 . It should be understood that the motor 310 may also be installed and fixed on the right side of the motor bracket 330 .
  • the leg rest turning structure 101 a also includes a right wire take-up reel 400 and a left wire take-up reel 410 , which are respectively sleeved on the synchronization rod 300 to rotate synchronously with it under the drive of the motor 310 .
  • the legrest turning structure 101a also includes a right side pretensioner 420 and a left side pretensioner 430, which are respectively welded and fixed on the insides of the right legrest inner support 112 and the left leg support inner support 115 to follow them.
  • the synchronization is reversed under the driving of the motor 310 .
  • the leg rest turning structure 101 a also includes a pulley fixing plate 440 , which is welded and fixed on the right leg rest inner support 112 and the left leg support inner support 115 to turn over under the drive of the motor 310 synchronously therewith.
  • the leg support extension structure 101b includes two sliding rod sleeves 602 and an extension mechanism 701, wherein the sliding rod sleeves 602 are respectively fixed on the right leg support inner support 112 and the left leg support inner support 115, and the extension mechanism 701 and the left leg support inner support 115 respectively.
  • the sliding rod sleeve 602 is butt mounted.
  • the extension mechanism 701 includes a limiting block fixing bracket 601, a sliding rod 603, an extension block 604, a right cover bracket 605, a left cover bracket 606, and an idler roller 608, wherein the limiting block fixing bracket 601 and the extension block 604 are welded and fixed, inserted
  • the sliding rod 603 and the extension block 604 in the sliding rod sleeve 602 are welded and fixed, the right cover bracket 605 and the left cover bracket 606 are respectively fixed on the extension block 604 by bolts 607, and the supporting roller 608 is fixed on the extension block 604 by nuts 609 .
  • the leg rest extension driving structure 101c includes symmetrically arranged left and right reel drive zipper mechanisms, as shown in Figure 7 and Figure 8, the reel drive zipper mechanism includes a pretensioner bracket 510, a rear roller bracket 530, the front roller bracket 532 and the steel wire 538, wherein the steel wire 538 is first fixed on the steel wire take-up reel 400, 410, passes through the rear roller bracket 530 successively, the front roller bracket 532, the pretensioner bracket 510, and finally winds and Fix it on the steel wire take-up reels 400, 410, complete the installation of the steel wire 538, and make it form a closed loop.
  • the reel drive zipper mechanism includes a pretensioner bracket 510, a rear roller bracket 530, the front roller bracket 532 and the steel wire 538, wherein the steel wire 538 is first fixed on the steel wire take-up reel 400, 410, passes through the rear roller bracket 530 successively, the front roller bracket 532, the pretensioner bracket 510, and finally winds and Fix it on the steel wire take-up
  • the small roller 501 is fixed on the pretensioner bracket 510 through the pin 502 and the snap spring 503, the spring 504 is placed in the middle of the pretensioner bracket 510 and fixed on the pretensioner 420, 430 through the pin 505, Lock at last by jumper 503;
  • Rear roller bracket 530 is fixed on the pulley fixed plate 440 by welding, and another small roller 520 is fixed on the rear roller bracket 530 by pin 531 and jumper 503;
  • Front roller bracket 532 is fixed on by welding On the pulley fixing plate 440 , the large roller 533 is fixed on the front roller bracket 532 through a pin 534 and a jumper 535 .
  • the wire reel driving zipper mechanism also includes a steel wire limiting block 536 and a limiting block upper block 539, wherein the steel wire limiting block 536 is fixed on the limiting block fixing bracket 601 by bolts 537, and the steel wire 538 has a restriction block 5381, which is placed in the lower block 536 of the steel wire restriction, and the upper block 539 of the restriction block is covered and fixed with a bolt 537.
  • the running of the steel wire 538 can drive the steel wire to limit the movement of the lower block 536 and the block fixing bracket 601, thereby driving the extension movement of the leg support extension structure 101b (see FIG. 5).
  • the synchronous rod 300 rotates, and the steel wire take-up reels 400, 410 installed and fixed on the synchronous rod 300 rotate and wind up the steel wire 538, as shown in Figure 9, its travel drives the limit block to fix
  • the movement of the bracket 601 and the leg support extension structure 101b makes the sliding rod 603 move in the sliding rod sleeve 602 , as shown in FIG. 10 , thereby realizing the extension and shortening of the leg support extension structure 101b.
  • the driving mode of extension is not limited to the above-mentioned wire pulling.
  • the motion track process of the continuously rotating integrated leg rest 101 includes: the motor 310 receives the power supply signal, drives the synchronous rod 300, drives the recliner 111, 114 to run and drives the inner side of the leg rest
  • the brackets 112, 115 make the leg support unfold; the synchronous rod 300 drives the recliner 111, 114 while driving the reel to drive the zipper mechanism.
  • the leg support is lifted, the leg support is also extended simultaneously. Due to the precise calculation In time, it will be extended to the longest position when the leg rest is fully extended.

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Abstract

一种连续旋转一体式腿托（101），包括腿托翻转结构（101a）、腿托延伸结构（101b）和腿托延伸驱动结构（101c），其中，腿托翻转结构（101a）可翻转地安装在坐垫骨架（102）上，腿托翻转结构（101a）包括支撑臂、同步杆（300）和单个电机（310），其中，同步杆（300）和电机（310）连接，支撑臂连接在同步杆（300）上以通过电机（310）驱动其围绕着同步杆（300）的中心轴线转动，腿托延伸结构（101b）通过腿托延伸驱动结构（101c）可延伸地安装在腿托翻转结构（101a）上以在初始位置和展开位置之间被连续地同时翻转和延伸。仅通过一个电机即可同时连续地实现旋转翻转和延长延伸，不仅成本低廉，而且整体外观呈现为一体式。

Description

一种连续旋转一体式腿托 技术领域
本发明涉及汽车座椅，更具体地涉及一种连续旋转一体式腿托。
背景技术
已知腿托是汽车座椅上的配件，主要用来辅助增加乘客的腿部支撑面积，以提高乘坐的舒适性。现有技术中的腿托都是非连续性的，通过一个电机实现旋转翻转，通过另一个电机实现延长延伸，这不仅导致成本高昂，而且整体外观呈现为分段式。
发明内容
为了解决上述现有技术中的成本较高等问题，本发明提供一种连续旋转一体式腿托。
根据本发明的连续旋转一体式腿托，其包括腿托翻转结构、腿托延伸结构和腿托延伸驱动结构，其中，腿托翻转结构可翻转地安装在坐垫骨架上，腿托翻转结构包括支撑臂、同步杆和单个电机，其中，同步杆和电机连接，支撑臂连接在同步杆上以通过电机驱动其围绕着同步杆的中心轴线转动，腿托延伸结构通过腿托延伸驱动结构可延伸地安装在腿托翻转结构上以在初始位置和展开位置之间被连续地同时翻转和延伸。
在一些实施例中，腿托延伸驱动结构为卷线盘驱动拉锁机构。
在一些实施例中，腿托翻转结构还包括钢丝收线盘、滑轮固定板和预紧器，其中，钢丝收线盘套设在同步杆上以随其在电机的驱动下同步旋转，滑轮固定板和预紧器分别固定在支撑臂上以随其在电机的驱动下同步翻转。
在一些实施例中，腿托延伸驱动结构包括后滚轮支架、前滚轮支架、预紧器支架和钢丝线，其中，后滚轮支架和前滚轮支架分别固定安装在滑轮固定板上，预紧器支架安装在预紧器上，钢丝线的一端固定在钢丝收线盘上，依次穿过后滚轮支架、前滚轮支架和预紧器支架，钢丝线的另一端缠绕固定在钢丝收线盘上以形成一个闭环。
在一些实施例中，第一小滚轮可转动地安装在后滚轮支架上，大滚轮可转动地安装在前滚轮支架上，第二小滚轮可转动地安装在预紧器支架上，钢丝线依次借助于第一小滚轮、大滚轮和第二小滚轮导向。
在一些实施例中，腿托延伸驱动结构还包括钢丝限制下块和限制块上块，其中，钢丝限制下块固定在腿托延伸结构上，钢丝线具有限制块，限制块放置于钢丝限制下块内 并通过盖上限制块上块进行固定，从而通过钢丝线的行走来驱动腿托延伸结构。
在一些实施例中，腿托延伸结构包括滑动杆套和延伸机构，其中，滑动杆套固定在支撑臂上，延伸机构与滑动杆套对接安装。
在一些实施例中，延伸机构包括限制块固定支架、滑动杆和延伸块，其中，与钢丝限制下块固定连接的限制块固定支架与延伸块固定连接，插入滑动杆套中滑动配合的滑动杆与延伸块固定。
在一些实施例中，支撑臂包括腿托外支架、调角器和腿托内侧支架，其中，腿托外支架固定在坐垫骨架上，腿托内侧支架通过调角器可翻转地安装在腿托外支架上，调角器与同步杆驱动连接以通过电机驱动腿托内侧支架的翻转。
在一些实施例中，腿托翻转结构包括对称设置的两支撑臂，同步杆连接在两支撑臂之间以同步驱动两支撑臂。
根据本发明的连续旋转一体式腿托，仅通过一个电机即可同时连续地实现旋转翻转和延长延伸，不仅成本低廉，而且整体外观呈现为一体式。
附图说明
图1是坐垫总成的爆炸图，其示出了根据本发明的一个优选实施例的连续旋转一体式腿托与坐垫骨架的装配关系；
图2是图1的坐垫总成的调整过程示意图，其示出了连续旋转一体式腿托在初始位置和展开位置之间的调节过程；
图3是图1的连续旋转一体式腿托的整体结构示意图；
图4是图3的腿托翻转结构的爆炸图；
图5是图3的腿托延伸结构的爆炸图；
图6是图3的腿托延伸驱动结构的爆炸图；
图7是图6的卷线盘驱动拉锁机构的结构示意图；
图8是图7的卷线盘驱动拉锁机构的剖视图；
图9是图7的卷线盘驱动拉锁机构的调整过程示意图；
图10是图5的腿托延伸结构的调整过程示意图，其示出了延伸机构在初始位置和展开位置之间的调节过程。
具体实施方式
下面结合附图，给出本发明的较佳实施例，并予以详细描述。
如图1所示，汽车座椅的坐垫总成包括根据本发明的一个优选实施例的连续旋转一体式腿托101与坐垫骨架102，其中，连续旋转一体式腿托101被焊接固定在坐垫骨架102上以形成坐垫总成，其整体与靠背总成连接可组成完整的汽车座椅。
如图2所示，连续旋转一体式腿托101在初始位置被竖直地设置于坐垫骨架102的前方，连续旋转一体式腿托101在展开位置被向前抬升至最大角度且向下延长至最长位置，特别地，借助于单个电机的驱动，连续旋转一体式腿托101在初始位置和展开位置之间的中间位置被连续地同时翻转和延伸，即向前抬升展开的同时向下延长，以及向后降落收回的同时向上缩短。
如图3所示，连续旋转一体式腿托101包括腿托翻转结构101a、腿托延伸结构101b和腿托延伸驱动结构101c，其中，腿托翻转结构101a被可翻转地安装在坐垫骨架102(参见图1)上，腿托延伸结构101b通过腿托延伸驱动结构101c可延伸地安装在腿托翻转结构101a上。
如图4所示，腿托翻转结构101a包括右侧支撑臂200、左侧支撑臂210、同步杆300和电机310，其中，同步杆300和电机310连接，右侧支撑臂200和左侧支撑臂210分别连接在同步杆300的相对两端以通过电机310同步驱动右侧支撑臂200和左侧支撑臂210围绕着同步杆300的中心轴线转动。具体地，右侧支撑臂200包括右腿托外支架110、右调角器111和右腿托内侧支架112，右腿托外支架110焊接固定在坐垫骨架102(参见图1)上，右腿托内侧支架112通过右调角器111可翻转地安装在右腿托外支架110上；同样地，左侧支撑臂210包括左腿托外支架113、左调角器114和左腿托内侧支架115，左腿托外支架113焊接固定在坐垫骨架102(参见图1)上，左腿托内侧支架115通过左调角器114可翻转地安装在左腿托外支架113上；右调角器111和左调角器114分别驱动连接在同步杆300的相对两端以通过电机310同步驱动右腿托内侧支架112和左腿托内侧支架115的翻转。
如图4所示，腿托翻转结构101a还包括紧固件320和电机支架330，其中，电机310通过紧固件320(例如螺钉)安装固定在电机支架330的左侧，右腿托外支架110和左腿托外支架113分别焊接在电机支架330的相对两侧。应该理解，该电机310也可以安装固定在电机支架330的右侧。
如图4所示，腿托翻转结构101a还包括右钢丝收线盘400和左钢丝收线盘410，其分别套设在同步杆300上以随其同步在电机310的驱动下旋转。
如图4所示，腿托翻转结构101a还包括右侧预紧器420和左侧预紧器430，其分别焊接固定在右腿托内侧支架112和左腿托内侧支架115的内侧以随其同步在电机310的驱动下翻转。
如图4所示，腿托翻转结构101a还包括滑轮固定板440，其焊接固定在右腿托内侧支架112和左腿托内侧支架115上以随其同步在电机310的驱动下翻转。
如图5所示，腿托延伸结构101b包括两滑动杆套602和延伸机构701，其中，滑动杆套602分别固定在右腿托内侧支架112和左腿托内侧支架115上，延伸机构701与滑动杆套602对接安装。具体地，延伸机构701包括限制块固定支架601、滑动杆603、延伸块604、右面套支架605、左面套支架606和托滚608，其中，限制块固定支架601与延伸块604焊接固定，插入滑动杆套602中滑动配合的滑动杆603与延伸块604焊接固定，右面套支架605和左面套支架606分别通过螺栓607固定在延伸块604上，托滚608通过螺母609固定在延伸块604上。
如图6所示，腿托延伸驱动结构101c包括对称设置的左右两卷线盘驱动拉锁机构，如图7和图8所示，卷线盘驱动拉锁机构包括预紧器支架510、后滚轮支架530、前滚轮支架532和钢丝线538，其中，钢丝线538先一头固定在钢丝收线盘400，410上，依次穿过后滚轮支架530，前滚轮支架532，预紧器支架510，最后缠绕并固定在钢丝收线盘400，410上，完成钢丝538的安装，使其形成一个闭环。具体地，结合图6，小滚轮501通过销502和卡簧503固定在预紧器支架510上，弹簧504放置于预紧器支架510中间并通过销505固定在预紧器420，430上，最后通过卡簧503锁紧；后滚轮支架530通过焊接固定在滑轮固定板440上，另一小滚轮520通过销531和卡簧503固定在后滚轮支架530上；前滚轮支架532通过焊接固定在滑轮固定板440上，大滚轮533通过销534和卡簧535固定在前滚轮支架532上。
如图6-图8所示，卷线盘驱动拉锁机构还包括钢丝限制下块536和限制块上块539，其中，钢丝限制下块536通过螺栓537固定在限制块固定支架601上，钢丝线538具有限制块5381，其放置于钢丝限制下块536内，盖上限制块上块539并用螺栓537进行固定。由此，钢丝线538的行走可以带动钢丝限制下块536和限制块固定支架601的移动，从而驱动腿托延伸结构101b(参见图5)的延伸运动。具体地，在电机310的驱动下，同步杆300转动，安装固定在同步杆300上的钢丝收线盘400，410转动并卷收钢丝线538，如图9所示，其行走带动限制块固定支架601及腿托延伸结构101b(参见图3)的移动，即使得滑动杆603在滑动杆套602中移动，如图10所示，从而实现腿托延伸结构101b 的伸长和缩短。应该理解，延伸的驱动方式并不局限于上述的钢丝拉扯。
由此，根据本发明的一个优选实施例的连续旋转一体式腿托101的运动轨迹流程包括：电机310收到给电信号，驱动同步杆300，带动调角器111，114运行驱动腿托内侧支架112，115，使得腿托展开；同步杆300在驱动调角器111，114的同时，带动卷线盘驱动拉锁机构，在腿托抬升的同时腿托延长也在同步进行，由于精确计算的时间下，会在腿托完全展开的时候，延长到最长位置。
以上所述的，仅为本发明的较佳实施例，并非用以限定本发明的范围，本发明的上述实施例还可以做出各种变化。即凡是依据本发明申请的权利要求书及说明书内容所作的简单、等效变化与修饰，皆落入本发明专利的权利要求保护范围。本发明未详尽描述的均为常规技术内容。

Claims (10)

  1. 一种连续旋转一体式腿托，其特征在于，该连续旋转一体式腿托包括腿托翻转结构、腿托延伸结构和腿托延伸驱动结构，其中，腿托翻转结构可翻转地安装在坐垫骨架上，腿托翻转结构包括支撑臂、同步杆和单个电机，其中，同步杆和电机连接，支撑臂连接在同步杆上以通过电机驱动其围绕着同步杆的中心轴线转动，腿托延伸结构通过腿托延伸驱动结构可延伸地安装在腿托翻转结构上以在初始位置和展开位置之间被连续地同时翻转和延伸。
  2. 根据权利要求1所述的连续旋转一体式腿托，其特征在于，腿托延伸驱动结构为卷线盘驱动拉锁机构。
  3. 根据权利要求1所述的连续旋转一体式腿托，其特征在于，腿托翻转结构还包括钢丝收线盘、滑轮固定板和预紧器，其中，钢丝收线盘套设在同步杆上以随其在电机的驱动下同步旋转，滑轮固定板和预紧器分别固定在支撑臂上以随其在电机的驱动下同步翻转。
  4. 根据权利要求3所述的连续旋转一体式腿托，其特征在于，腿托延伸驱动结构包括后滚轮支架、前滚轮支架、预紧器支架和钢丝线，其中，后滚轮支架和前滚轮支架分别固定安装在滑轮固定板上，预紧器支架安装在预紧器上，钢丝线的一端固定在钢丝收线盘上，依次穿过后滚轮支架、前滚轮支架和预紧器支架，钢丝线的另一端缠绕固定在钢丝收线盘上以形成一个闭环。
  5. 根据权利要求4所述的连续旋转一体式腿托，其特征在于，第一小滚轮可转动地安装在后滚轮支架上，大滚轮可转动地安装在前滚轮支架上，第二小滚轮可转动地安装在预紧器支架上，钢丝线依次借助于第一小滚轮、大滚轮和第二小滚轮导向。
  6. 根据权利要求4所述的连续旋转一体式腿托，其特征在于，腿托延伸驱动结构还包括钢丝限制下块和限制块上块，其中，钢丝限制下块固定在腿托延伸结构上，钢丝线具有限制块，限制块放置于钢丝限制下块内并通过盖上限制块上块进行固定，从而通过钢丝线的行走来驱动腿托延伸结构。
  7. 根据权利要求6所述的连续旋转一体式腿托，其特征在于，腿托延伸结构包括滑动杆套和延伸机构，其中，滑动杆套固定在支撑臂上，延伸机构与滑动杆套对接安装。
  8. 根据权利要求7所述的连续旋转一体式腿托，其特征在于，延伸机构包括限制块固定支架、滑动杆和延伸块，其中，与钢丝限制下块固定连接的限制块固定支架与延伸块固定连接，插入滑动杆套中滑动配合的滑动杆与延伸块固定。
  9. 根据权利要求1所述的连续旋转一体式腿托，其特征在于，支撑臂包括腿托外支架、调角器和腿托内侧支架，其中，腿托外支架固定在坐垫骨架上，腿托内侧支架通过调角器可翻转地安装在腿托外支架上，调角器与同步杆驱动连接以通过电机驱动腿托内侧支架的翻转。
  10. 根据权利要求1所述的连续旋转一体式腿托，其特征在于，腿托翻转结构包括对称设置的两支撑臂，同步杆连接在两支撑臂之间以同步驱动两支撑臂。
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