Patent CN1087266C - Secondary-stage guiding system for lift-cabin door driven by linear ... - Google PatentsCN1087266 CGrantCN Jul 10, 2002Nov 6, 1997Nov 7, 1996, , , , , , CN 1087266 C, CN 1087266C, CN , CN-C-1087266, CN1087266 C, CN1087266C, CN, CN, , ,
(4) , Secondary-stage guiding system for lift-cabin door driven by linear induction motor
CN 1087266 C 一种用于在电梯系统中打开和关闭电梯门的直线感应电动机中的电动机次级，包括一个次级导向系统，该系统具有一个第一次级导向器和一个第二次级导向器。 An apparatus for opening and closing an elevator door linear induction motor in the motor secondary includes a secondary guide system, this system having a first and a second secondary guide secondary guide in an elevator system. 该第一次级导向器被配置在电动机次级的底部长边缘上，而该第二次级导向器被配置在电动机次级的顶部长边缘上。 The first secondary guide is disposed on the bottom edge of the motor secondary of Ministers, and the second secondary guide is disposed on the top long edge of the motor secondary. 该导向器将电动机次级与电动机初级隔离开并在其间建立了小且恒定的运行间隙。 The guide and the motor secondary and the motor primary isolate established therebetween is small and constant running clearances.
1.一种用来打开和关闭电梯轿厢门的直线电动机，所说电梯轿厢门被悬吊在一个门吊架上，所说门吊架可移动地固定在顶架上，该顶架固定地与所说电梯轿厢相连接，所说直线电动机包括：一个电动机初级，它连接于所说门吊架上并具有被一组间隔件隔离开的护铁和初级线圈；一个电动机次级，它与所说顶架连接并配置在所说护铁和所说电动机初级的初级线圈之间，所说电动机次级有一个顶部长边缘和一个底部长边缘沿所说电动机次级的长度方向延伸，所说电动机次级有一个第一垂直端和一个第二垂直端；一个顶部次级导向器，它在所说电动机次级的长度方向上延伸，并配置在所说的顶部长边缘上；一个底部次级导向器，它在所说电动机次级的长度方向上延伸，并配置在所说的底部长边缘上，所说第一和第二次级导向器允许所说电动机初级相对于所说电动机次级的垂直运动。 1. A linear motor for opening and closing an elevator car door, said elevator car door being suspended from a door hanger, said door hanger fixed to the top frame movably, the top frame fixedly connected to said elevator car, said linear motor comprising: a motor primary, which is connected to the said door hanger and having a set of spaced spacer backiron a a motor secondary It is connected and arranged between said retaining primary iron and said primary winding of the motor and said top frame, said motor secondary having a top edge and a bottom long edge Minister along the longitudinal direction of said motor secondary extends, said motor secondary having a first vertical end and a a top secondary guide, which extends in said longitudinal direction on a motor secondary, and arranged on the lon a bottom secondary guide, which extends in said longitudinal direction of the motor secondary, and disposed on said bottom edge Minister, said first and second secondary guides allowing the primary relative to said motor vertical movement of said motor secondary.
2.根据权利要求1的直线电动机，其特征在于：所说次级导向器具有U形体。 2. A linear motor according to claim 1, wherein: said secondary guide has a U-shaped body.
3.根据权利要求2的直线电动机，其特征在于：所说电动机次级包括第一和第二表面，所说电动机次级具有折弯在所说第二表面上的一个顶部和底部翻边，所说翻边在所说电动机次级的长度方向上延伸。 3. The linear motor according to claim 2, wherein: said motor secondary includes a first and a second surface, said motor secondary having a bend at the top and bottom of said flange on the second surface, said flange extending in the longitudinal direction of said motor secondary. 所说次级导向器的所说U形体有一个第一支脚和一个第二支脚，所说第二支脚在所说翻边的高度方向上延伸并具有一个在其端部与其成一个整体的突边，以使所说次级导向器可以咬合在所说电动机次级的长边缘上。 Said secondary guides of said U-shaped body having a first leg and a second leg, said second leg extending in a height direction of said flange and having an end portion thereof projecting integrally therewith in side, so that said secondary guide can be snapped on the long edges of said motor secondary.
4.根据权利要求1的直线电动机，其特征在于：所说次级导向器由石墨填充酰胺纤维制造。 4. A linear motor according to claim 1, wherein: said secondary guide manufactured from graphite filled polyamide fibers.
用于由直线感应电动机驱动的电梯轿厢门的次级导向系统 For secondary guide system driven by a linear induction motor elevator car door
技术领域 FIELD
本发明涉及电梯系统，特别是涉及用于由高性能的直线感应电动机驱动的电梯轿厢门的电梯系统。 The present invention relates to elevator systems, and more particularly for the high-performance linear induction motor driving an elevator car door of an elevator system.
背景技术 BACKGROUND
在传统的电梯系统中，电梯厢门被一个驱动机械组件的回转电动机有选择地打开和关闭，该机械组件一般包括一组运动部件如齿轮箱、一套驱动臂和连杆。 In conventional elevator systems, elevator car doors are driven mechanical components of a rotary electric motor selectively opened and closed, the mechanical assembly generally includes a plurality of moving parts such as gear boxes, a set of drive arms, and links. 现有电梯轿厢门的主要缺点是它们对位置偏移的敏感性使得它们需要经常调整，导致运行成本过高。 The main drawback of the existing elevator car doors is that they are such that they are sensitive to misalignments require frequent adjustments, resulting in high maintenance costs. 同样，位置偏移也降低了系统的性能，例如门的开和关不能总是保持平稳和安静。 Similarly, the position offset also reduces the performance of the system, such as a door opening and closing can not always maintain smooth and quiet.
直线电动机消除了机械杆件和由此带来的种种问题，从而可能提供不同于传统门操作系统的选择。 Linear motors eliminates mechanical lever and the resulting problems, which may provide a different traditional door operating system of choice. 然而，尽突边在Ayers的美国专利第1,881,014号和Yoshino的美国专利第5,127,518号中已揭示了直线电动机，但这些参考资料中没有提供电梯工业可实用的门操作系统一般直线电动机包括一个电动机初级和一个电动机次级，它们相配合产生有选择性地打开和关闭电梯轿厢门的牵引力。 However, although the flange in U.S. Patent No. 1,881,014 Ayers and U.S. Patent No. 5,127,518 Yoshino the linear motor has been disclosed, but these references do not provide industrially practical elevator door operating systems typically include a motor primary linear motor and a motor secondary which cooperate to produce selectively opening and closing elevator car doors traction. 一个妨碍直线电动机在电梯工业中电梯轿厢门上应用的问题是要保持直线电动机中电动机初级和电动机次级之间适当的运行间隙。 A linear motor problems hinder industrial applications in the elevator on the elevator car door is to maintain the proper clearance between the linear motor run primary and secondary motor motor. 为了使直线电动机效率高、性能优良，必须在各种模式的门操作过程中保持小的且恒定的运行间隙。 In order to make high-efficiency linear motor, excellent performance, must be kept small and constant running clearances during various modes of door operation. 在门的操作过程中，运行间隙的波动将会引起电动机牵引力的变化，从而可能会导致门的运动不稳定。 During operation of the door, the fluctuation of the running clearance will cause a change in the traction motor, which may lead to unstable motion of the door. 当电梯轿厢门有位置偏移或受到冲击时，要保持电动机各部件间恒定且小的运行间隙就更加困难。 When the elevator car doors positional displacement or impact to keep the parts between the motor constant and small running clearance is even more difficult. 然而，即使在电梯轿厢门偏离了预定轨道时，也必须保持电动机初级和电动机次级之间有恒定且小的运行间隙。 However, even in the elevator car doors deviate from the predetermined orbit, must maintain a constant and small running clearances between the motor primary and the motor secondary.
现有参考资料中所揭示的直线电动机在电梯轿厢门上的应用主要依赖于在电动机各部件之间的带滚轮的导向系统。 References in the prior application disclosed in the linear motor elevator car door between the motor depends on the various components with a wheel guiding system. 虽然在导向系统中滚轮的应用是普遍的，但滚轮型的导向系统带来了许多不良的副效果，并且包括了许多限制。 While the guide roller application system is universal, but the roller-type guide system brings many undesirable side effects, and includes a number of restrictions. 不良副效果包括产生噪声、由牵引力引起的载荷高度集中以及传递来自电动机的振动。 Adverse side effects, including noise, load caused by a high concentration of traction and the transmission of vibration from the motor. 滚轮型导向系统的一个主要限制是：电动机初级和电动机次级之间有任何位置偏移或相对运动时，滚轮都不允许不正常的运动并且还会打滑。 A major limitation of the roller-type guide system is: there is no relative motion or position offset, the wheel does not allow normal movement and will slip between the motor primary and secondary motor.
于日发表的Rose的名为″门操作系统″的美国专利1,881,016揭示了在其上下边缘带有一对导靴的电动机次级。 On October 4, 1932 published by the US Patent Rose called &door operating system& 1,881,016 discloses a motor secondary with a pair of the shoes in the upper and lower edges. 该导靴被刚性地约束在导轨中。 The guide shoe is rigidly constrained in the rail. 虽然Rose的专利消除了滚轮导向系统的许多缺陷，但它仍然不允许垂直方向上门的任何位置偏移，而且当门有位置偏移或门弯曲时将会导致阻塞。 Although the Rose patent eliminates many of the deficiencies of the roller guide system, but it still does not allow any position in the vertical direction of the door offset, and when the door or gate has a bending position offset will cause blocking. 因此，希望提供一种电动机初级和电动机次级之间的导向系统，该导向系统补偿门的位置偏移并保持电动机初级和电动机次级之间有恒定且小的运行间隙。 It is therefore desirable to provide a guidance system between a motor primary and the motor secondary, the position of the guide and an offset compensating door is held constant and small running clearances between the motor primary and the motor secondary.
发明内容 SUMMARY
本发明的一个目的是在直线感应电动机的电动机初级和电动机次级之间建立恒定且小的运行间隙。 An object of the present invention is to establish a constant and small running clearances between the motor primary linear induction motor and the motor secondary.
本发明的另一个目的是提供一种用于驱动电梯轿厢门系统的、对电梯轿厢门的垂直位置不敏感的直线感应电动机。 Another object of the present invention is to provide a method for driving an elevator car door system, the vertical position of the elevator car door insensitive linear induction motor.
根据本发明，一个用于打开和关闭电梯轿厢门的直线感应电动机包括一个次级导向系统。 According to the present invention, one for opening and closing an elevator car door linear induction motor comprising a secondary guide system. 该系统包括一个配置在电动机次级的长边缘上部的第一次级导向器和一个配置在电动机次级的长边缘下部的第二次级导向器，该两个导向器共同建立了电动机初级和电动机次级之间的运行间隙。 The system includes a guide disposed in a first secondary motor secondary long edge and a configuration in the upper portion of the motor secondary of the long edge of the lower second secondary guide, the two guides have jointly established motor primary and Run the motor secondary gap between. 次级导向器在电动机次级的长度方向上延伸，并且其一测靠在护铁上，另一测靠在电动机初级的表面上。 The secondary guides in the longitudinal direction of the motor secondary extending, and one measure against the back-iron, another measure against the primary surface of the motor.
次级导向器在电动机初级和电动机次级之间建立了小的运行间隙，并在电梯轿厢门的所有操作模式下都保持该间隙。 The secondary guides between the motor primary and the motor secondary to establish a small running clearances, and in all operating modes of the elevator car doors are maintained in the gap. 本发明的次级导向器还可允许相对于电动机初级的垂直运动，从而允许并补偿电梯轿厢门可能的位置偏移和弯曲。 Secondary guides present invention may also allow vertical movement relative to the motor primary, thereby allowing and compensating for possible elevator car door positional deviation and bending.
本发明的一个优点是次级导向器不产生噪声。 An advantage of the present invention is that the secondary guides do not produce noise.
本发明的另一个优点是反力分布在导向器的整个表面上，并提供了更大的磨擦表面，从而不会受到严重磨损。 Another advantage of the invention is a reaction force distributed over the entire surface of the guide, and provides a greater friction surface, so as not to severely wear.
前述的和另外一些本发明的优点将通过参考附图根据本发明的典型实施例进行的描述而变得更加清楚。 Example Description will become more apparent and the other aforementioned advantages of the invention will be with reference to the drawings according to an exemplary embodiment of the present invention.
附图说明 Brief Description
图1是一个局部剖开的示意性透视图，显示了根据本发明的由一个直线感应电动机驱动的电梯门系统。 Figure 1 is a partially cutaway schematic perspective view showing a linear induction motor drive according to the present invention by the elevator door system. 该电动机包括一个电动机初级和一个转有次级导向器的电动机次级； The motor includes a primary and a secondary guide turn have a m
图2是一个图1中所示的直线电动机的沿线2-2的局部剖开的示意性横截面视图；图3是图2中所示的装有次级导向器的放大、分解、局部透视图。 Figure 2 is a schematic partial cross-sectional view of a linear motor shown in Figure 1 taken along line 2-2; Fig. 3 is provided with secondary guide shown in Figure 2 an enlarged, exploded, fragmentary perspective Fig.
具体实施方式 DETAILED DESCRIPTION
参考图1，一个被悬吊在一对门吊架14上、用于打开和关闭一对电梯轿厢门12的电梯轿厢门操作系统10包括一对电动机初级16，该电动机初级固定地与一对门吊架相连，而电动机次级18与顶架20连接，该顶架固定于电梯轿厢的面板22(没有显示)上。 Referring to Figure 1, a hanger 14 is suspended from a door, for opening and closing a pair of elevator car doors of the elevator car doors 12 operating system 10 includes a pair of motor primaries 16, and the motor primary fixedly a door hanger is connected, while the motor secondary 20 is connected with the upper frame 18, the top frame fixed to the elevator car panel 22 (not shown).
参考图2，各电动机初级16包括一组由电动机间隔件32相互隔开的一个初级线圈28和一个护铁30。 Referring to Figure 2, each motor primary 16 comprises a set of spacers 32 by a motor spaced a primary winding 28 and a backiron 30. 该初级线圈28包括一个其上绕有线圈36的初级铁芯装置34，和一个对着护铁30的初级表面38。 The primary coil 28 comprises a primary core wound thereon means 34, and a backiron 30 facing surface 38 of the primary coil 36. 护铁30包括一个具有对着初级线圈28的护铁表面42的铁板40。 Backiron 30 includes a primary coil guard against the iron surface iron 42 28 40 has. 在初级表面38和护铁表面42之间确定了一个磁路气隙。 38 between the primary surface and retaining iron surface 42 defines a magnetic air gap.
各间隔件32包括由间隔件头部50作框架的一个间隔条48，各间隔件头部50确定了初级线圈28和护铁30之间的间隙。 Each spacer 32 comprises a spacer 50 for spacer frame 48 of the head portion, the head of each spacer 50 determines the gap between the primary winding 28 and backiron 30 between. 间隔条48包括一个间隔件表面51并且适合于将初级线圈28夹靠在门吊架14上。 Spacer 48 includes a spacer surface 51 and is adapted to the primary coil 28 is clamped against the door hanger 14. 每个电动机初级16通过一组穿过护铁30和电动机间隔件头部50的螺栓固定地与门吊架14连接。 Each motor primary 16 is fixedly connected to the door hangers 14 by a set bolt 30 passing through the backiron and the motor spacer 50 of the head.
电动机次级18在门移动轿厢的长度方向上延伸，并且当电动机初级16通过、打开和关闭电梯轿厢门12时，配置在护铁30和初级线圈28之间，如图1所示。 Motor secondary 18 in the longitudinal direction of movement of the car door extends, and when the motor 16 through the primary, opening and closing elevator car doors 12, disposed between the backiron 30 and the primary coil 28, as shown in FIG. 电动机次级18包括一个基本是平的板件，该板件具有第一和第二表面56、58，该两个表面以在电动机次级的长度方向上延伸的顶部和底部纵向边缘60、62以及第一和第二垂直端64、66作为边界。 Motor secondary 18 comprises a substantially flat plate member, the plate member having first and second surfaces 56, 58, the two surfaces to the top and bottom in the longitudinal direction of the motor secondary extending the longitudinal edges 60,62 and first and second vertical ends 64, 66 as a boundary. 两个纵向边缘60、62均被折弯以便在沿电动机次级18的第二表面58的长度方向上形成翻边70，如图2和3所示。 Two longitudinal edges 60,62 are bent so that the motor secondary cuff 70 is formed along the longitudinal direction of the second surface 58 of 18, as shown in Figures 2 and 3.
参考图3，次级导向器72被放置在电动机次级18的纵向边缘60、62之上。 Referring to Figure 3, a secondary guide 72 is placed over the longitudinal edges 60,62 of the motor secondary 18. 该次级导向器是一个细长的U形体其内部的宽度等于电动机次级的双层边缘60、62的宽度。 The secondary guide is an elongated U-shaped body is equal to the internal width of the motor secondary 60, 62 double edge width. 该U形体包括一个第一支脚74和一个第二支脚76，该第二支脚76的垂直高度基本上等于折弯翻边70的高度。 The U-shaped body 74 comprises a first leg and a second leg 76, the second leg 76 is substantially equal to the vertical height of the bend 70 of the flange height. 第二支脚还包括在其端部与其成为一个整体的突边78。 Further comprising a second leg at its end portion integral therewith a flange 78. 次级导向器72咬合在电动机次级18的各边缘60、62上，并且突边78与折弯翻边70相配合，将次级导向器72固定在电动机次级18上。 Secondary guide 72 engaging the motor 18 of the secondary edges 60, 62, and flanges 78 and the bent flange 70 fitted, the secondary guide 72 fixed to the motor secondary 18.
参考图2，次级导向器72的第一支脚74的外表面与护铁42相接触。 Referring to Figure 2, the secondary guides 72 of the first leg 42 of the outer surface 74 in contact with the back-iron. 次级导向器72的第二支脚76的外表面与间隔条32的间隔件表面51相接触。 The secondary guides 72 of the second leg 76 and the outer surface of the spacer surface 51 of the spacer 32 is in contact. 每一间隔件的尺寸使得运行间隙被确定在电动机次级18的第二表面58和初级表面38之间。 The size of each spacer is determined such that the running clearances between the motor secondary 38 in the second surface 58 and primary surface 18. 间隔条32的间隔件表面51从电动机初级16的初级表面38所在的平面凹下去，以补偿电动机次级18的翻边70的厚度。 Spacer spacer 32 from the surface 51 of the primary plane of the surface 38 of the motor primary 16 where the concave, to compensate for the thickness of the flange 70 of the motor secondary 18. 因此，在护铁表面42与电动机次级的第一表面56之间和初级表面38与电动机次级的第二表面58之间的运行间隙分别等于次级导向器的第一和第二支脚74、76的厚度。 Thus, between the backiron surface 42 and first surface 56 of the motor secondary 58 and the running clearances between the motor secondary 38 and the second surface of the primary surface of the secondary guide, respectively, equal to the first and second leg 74 , thickness 76.
如图1所示，电动机次级18在其两个端部64、62处被可移动地址连接在页架20上。 1, the motor secondary 18 at its both end portions 64, 62 are moved at the address can be attached to the page frame 20. 电动机次级18通过一个接头82安装在顶架20上，该接头82作为一个拉线钉允许护铁在顶架和电动机次级之间移动。 The motor secondary 18 is mounted via a joint 82 on the top frame 20, the joint 82 as a backiron standoffs allow movement between the upper frame and the motor secondary. 接头82还包括一个枢轴，允许电动机次级移入、移出平面并绕接头82转动。 82 also includes a pivot joint that allows the motor secondary into, out of and around the joints 82 plane rotation.
在操作中，随着电动机初级16穿过电动机次级18，打开和关闭电梯轿厢门12，在护铁30与电动机次级18之间和电动机次级18与初级线圈28之间的运行间隙小目保持恒定。 In operation, as the motor 16 through the primary motor secondary 18, opening and closing elevator car doors 12, 30 between the backiron 18 and the motor secondary and the motor secondary 18 and the running clearance between the primary coil 28 Small head remains constant. 通过使护铁42的平面以及初级线圈28的初级表面38保持与电动机次级18隔离，次级导向器72建立了一个预定的空间。 By backiron plane 42 and the primary coil 38 of the primary surface 28 and the motor secondary 18 to maintain isolation, the secondary guides 72 establish a predetermined space. 随着电动机初级16移过电动机次级18，次级导向器72的一侧与护铁表面42相接触，其另一侧与间隔件表面51相接触。 With the motor primary 16 moves across the motor secondary 18, the side with the backiron surface 72 of the secondary guide 42 comes into contact, the other side is in contact with the surface of the spacer 51. 这样次级导向器72分别将第一和第二次级电动机表面56、58与护铁表面42和初级表面38隔开。 Such secondary guides 42 and 72, respectively, the primary surfaces of the first and second surfaces 56, 58 with secondary motor backiron surface 38 spaced. 因为护铁表面和间隔件表面之间的距离已经被间隔件头部确定了，所以次级导向器72与护铁表面42之间的接触以及护铁42与间隔件表面5 1之间的接触在所有的操作模式下都保持稳定。 Because the distance backiron surface and the spacer surface has been identified by the head spacer, the contact between the contact 51 and the backiron surface 42 and the spacer 42 between the backiron 72 and secondary guide surface In all modes of operation remained stable.
要保持电动机次级18与电动机16之间的运行间隙以避免它们之间的摩擦是过于苛求的。 To keep the motor running sub-18 and the gap between the electric motor 16 in order to avoid friction between them is too demanding. 然而，保持该运行间隙最小以便使剩下的磁路气隙小却是可以办得到的。 However, to maintain the minimum clearance to run in order to make the rest of the magnetic air gap is small but can do to get. 磁路气隙大使电动机的效率下降。 Ambassador Motor efficiency magnetic air gap decreases.
本发明的次级导向器72的超过已有技术的优点是其允许并补偿电动机初级16相对于电动机次级18的垂直运动的能力。 Advantages over the prior art secondary guide 72 of the present invention is that it allows the motor primary 16 and the ability to compensate for vertical movement of the motor secondary 18 with respect to. 当电梯轿厢门12受到冲击或有位置偏移、并且门的吊架14和在其之上的电动机初级16在垂直方向上有位移时，运行间隙没有变化，而且电动机的性能从而也就是门的性能没有受到影响。 When the elevator car door 12 is under attack or has positional displacement, and the door hangers 14 and a motor 16 in its primary above displacement in the vertical direction, the running clearance does not change, and the performance of the motor and thus the door is The performance is not affected. 这一目的是通过提供在此显示的具体构造并选定电动机次级18的尺寸使得有另外的垂直空间便于其进入而达到的。 This object is achieved by providing the specific configuration shown herein and the size of the motor secondary 18 is selected such that there are additional vertical space to facilitate their entry into and achieved. 由于护铁表面42和间隔条表面51基本上是平的，当电动机初级16相对于电动机次级18垂直地运动时，无论电动机次级18相对于电动机初级16的垂直位置如何，次级导向器72仍然保持不变的运行间隙。 Since the spacer 42 and the backiron surface 51 is substantially flat surface, when the motor primary 16 relative to motor secondary 18 is vertically moved, regardless of how the motor secondary 18 with respect to the vertical position of the motor primary 16, secondary guide 72 remain the same running clearance.
本发明的一个好处是次级导向器72是咬合在电动机次级18上的，并不需要耗时和复杂的装配。 One advantage of the present invention is a secondary guide 72 is snapped onto the motor secondary 18 and do not require time-consuming and complex assembly. 同样，次级导向器也不需要连续的再调整。 Similarly, the secondary guides do not require continuous re-adjustment. 次级导向器的另一个好处是只有很小的磨损。 Another benefit of the secondary guides is that only minimal wear. 本发明的另一个好处是不产生噪声。 Another advantage of the present invention does not generate noise.
次级导向器由高密度聚合物构成。 Secondary guides constituted by a high density polymer. 虽然各种高密度聚合物都是可接受的，如Acetron、UHMW、和Nylatron(石墨填充酰胺纤维)，但长期的研究和试验证明Nylatron(石墨填充酰胺纤维)是最好的。 Although a variety of high-density polymer is acceptable, as Acetron, UHMW, and Nylatron (graphite filled polyamide fiber), but long-term studies and tests proved Nylatron (graphite filled polyamide fiber) is the best. 在最好的实施形式中次级导向器72的支脚74、76的厚度约为一毫米。 In the preferred form of embodiment the thickness of the secondary guides 74, 76 of the leg 72 is approximately one millimeter. 然而，导向器72的厚度可以根据想要得到的运行间隙的大小来决定。 However, the thickness of the guide 72 can be obtained according to the size of the desired running clearance determined.
虽然根据本发明的一个特殊实施例已经对本发明进行了图示和描述，但熟悉本领域的技术人员将会理解，可在不脱离本发明的精神实质和范围的前提下，对本发明进行修改。 While the invention has been illustrated and described in accordance with a particular embodiment of the present invention, but skilled in the art will appreciate, may be made without departing from the spirit and scope of the present invention is the premise of the present invention can be modified. 例如，虽然最佳实施例对每个纵向边缘只描述了一个单独的次级导向器，但也可将一组较短的次级导向器相互邻接地放置在各纵向边缘上。 For example, although the preferred embodiment describes only a single secondary guide for each longitudinal edge, but also may be a set of shorter secondary guides are placed adjacent to each other on each longitudinal edge.
*Otis Elevator CompanyElevator driven by a flat linear motor *Toyota Shatai Kabushiki KaishaMoving magnet type linear motor for automatic door *Otis Elevator CompanyFlat linear motor driven elevator *Otis Elevator CompanyLinear door motor system for elevatorsInternational Classification, , Cooperative Classification, , , , , European ClassificationH02K41/025, B66B13/08, E05F15/18C06PublicationC10Request of examination as to substanceC14GrantedC19Lapse of patent right due to non-payment of the annual feeRotate}