CN101627236B - Switching rocker of a shifting device for a gear wheel gear change box and corresponding production method - Google Patents

Switching rocker of a shifting device for a gear wheel gear change box and corresponding production method Download PDF

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Publication number
CN101627236B
CN101627236B CN200880007071.7A CN200880007071A CN101627236B CN 101627236 B CN101627236 B CN 101627236B CN 200880007071 A CN200880007071 A CN 200880007071A CN 101627236 B CN101627236 B CN 101627236B
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CN
China
Prior art keywords
shift fork
gear shift
connecting element
gear
gearshift
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Expired - Fee Related
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CN200880007071.7A
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Chinese (zh)
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CN101627236A (en
Inventor
马蒂亚斯·费尔巴哈
韦蕾娜·哈耶克
克劳斯·克雷默
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Schaeffler Technologies AG and Co KG
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Schaeffler Technologies AG and Co KG
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H63/00Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30Constructional features of the final output mechanisms
    • F16H63/32Gear shift yokes, e.g. shift forks
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H63/00Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30Constructional features of the final output mechanisms
    • F16H63/32Gear shift yokes, e.g. shift forks
    • F16H2063/325Rocker or swiveling forks, i.e. the forks are pivoted in the gear case when moving the sleeve
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H63/00Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30Constructional features of the final output mechanisms
    • F16H63/32Gear shift yokes, e.g. shift forks
    • F16H2063/327Gear shift yokes, e.g. shift forks essentially made of sheet metal

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gear-Shifting Mechanisms (AREA)

Abstract

The invention relates to a switching rocker (1) of a shifting device for a gear wheel gear change box, particularly for motor vehicles, comprising two half parts (2) forming a selector gate (19), the parts being rigidly connected to each other by means of a connecting element (3). The invention furthermore relates to a method for producing such a switching rocker, wherein the two half parts (2) forming a selector gate, the parts each being provided with an insertion tab (10) for a pivoting support of the switching rocker and an insertion tab (12) for receiving sliding pieces, are positioned by means of the insertion tabs and rigidly connected to each other by a connecting element (3).

Description

The gear shift fork and the corresponding manufacture method thereof that are used for the gearshift of gear wheel gear change box
Technical field
The invention belongs to transmission system technical field and relate to a kind of gear shift fork of gearshift of the gear wheel gear change box that is particularly useful for Motor Vehicle.
Background technique
In thering is the gear wheel gear change box of countershaft, as the escape wheel of floating roller (Losrad), be placed in rotationally on main shaft, on the other hand, as the counter shaft gear of fast pulley, be torsionally connected on countershaft.At this, together with the gear mesh being comprised of with an escape wheel a counter shaft gear is respectively intermeshing constantly.The generation that power transmission connects is to realize in the slide cartridge (Schiebemuffe) of escape wheel by attaching troops to a unit, slide cartridge torsionally along the longitudinal central axis line component capable of movable installed of main shaft on main shaft, its can with escape wheel form fit be meshed.
For gear selecting and gearshift are provided with gearshift, this gearshift typically comprises the shifting shaft of being handled by operating mechanism by hand-gear shift lever, and this shifting shaft along its longitudinal central axis line movably and around this medial axis, be placed in swingably in case of transmission or be placed in a module being contained in case of transmission.Shifting shaft for example can be equipped with gearshift reversal means, gearshift reversal means according to the difference of transmission types by gearshift slide bar and rigidly connected selector fork or act on slide cartridge by gear shift fork with it.
Selector fork or gear shift fork utilize two opposed gearshift jaw side jaws to form gearshift jaw, and under the complete state of assembling, slide cartridge is included in this gearshift jaw.Two gearshift jaw side jaws are connected with slide cartridge form fit ground, and for this purpose, two gearshift jaw side jaws are for example engaged in the annular groove of slide cartridge with slide block.Two gearshift jaw side jaws are connected to each other by arc bending thing.
Selector fork is fixed on gearshift slide bar conventionally, and wherein, gearshift jaw side jaw is installed transverse to the longitudinal central axis of gearshift slide bar.Gearshift slide bar can move together with selector fork while moving axially, and like this, the slide cartridge being connected with selector fork is moved by the longitudinal central axis line along main shaft, to reach gearshift object.Unlike this, gear shift fork is for example placed on case of transmission to swingable motion by means of turntable bearing, can swing around swing axis perpendicular to main shaft longitudinal central axis line, and with this along main axle moving slide cartridge.
As everyone knows, for manufacturing gear shift fork, there is different manufacture methodes.For example, in a kind of casting method, gear shift fork is manufactured such as cast iron by castable material as foundry goods, yet this method has following shortcoming, that is, the gear shift fork of manufacturing with this kind of method is heavier.
In addition, it is also known adopting banded sheet material semi-finished product to manufacture gear shift fork, and in this method, gear shift fork forms by comprising repeatedly the BENDING PROCESS manufacture of bending operation.Conventionally before BENDING PROCESS, need in sheet material semi-finished product, by the mode of for example punching press or milling, manufacture corresponding switching place, to realize swingable motion, support the object of gear shift fork.Correspondingly, need in holding the gearshift jaw side jaw of slide block, manufacture switching place, in order to engage with slide cartridge.
Can be by selecting the suitable lighter gear shift fork of material manufacture, this is favourable when adopting bending method to manufacture gear shift fork.Yet disadvantageously, for complexity, conventionally also need to realize the BENDING PROCESS that side is recessed, need technology punch die technical costliness thereby that cost is very high.In addition, the fact shows, in industrialized batch production, can not reach and make the necessary tolerance of the appropriate work of gear shift fork when gear shift fork is carried out to bending.
For elaborating this point, should consider to be connected to form in two gearshift jaw side jaws for swingable motion support the First Line of the first switching place of gear shift fork, and be connected to form in two gearshift jaw side jaws for receiving the second line of the second switching place of slide block, thereby can with slide cartridge form fit be connected.In desirable BENDING PROCESS, parallel in the longitudinal plane that First Line and the second line not only should extend at two gearshift jaw side jaws, and also parallel in the perpendicular plane of this plane of Ying Yu.When two the first switchings place and two the second switchings place are clamped in a common plane, above-mentioned last point is just met.If not so, under the state that gear shift fork installs at slide cartridge in one with longitudinal third side of main shaft movement direction capable to irrelevancy on, so increased widely wearing and tearing.
For avoiding such situation, up to now, after BENDING PROCESS, all need switching place of gear shift fork to cut again and process, to can reach, make the gear shift fork desirable tolerance of working in accordance with regulations.Yet such cutting is processed not only time-consuming again, and cost is high.
Summary of the invention
And the object of the invention is, a kind of gear shift fork and a kind of method of manufacturing this kind of rocking bar are proposed, the method can be within the scope of desirable manufacturing tolerances easily and cost reasonably manufacture gear shift fork.
According to suggestion of the present invention, above-mentioned purpose is by having the gear shift fork of feature described in claim 1, and is achieved by having the manufacture method of the gear shift fork of feature described in claim 14.Preferred design of the present invention is elaborated by dependent claims.
According to the present invention, shown a kind of gear shift fork of gearshift of the gear wheel gear change box that is particularly useful for Motor Vehicle.Gear shift fork comprises the two half-unit part that forms gearshift jaw by means of connecting element is rigidly connected to together mutually.In half parts, be configured with respectively through hole, to support swingably gear shift fork and to hold the slide block for combining with slide cartridge.Each half parts is advantageously configured to the crooked slightly microscler flat bar form for example consisting of steel plate.Between two half-unit part, by being for example fixedly connected with of connecting element, by least one weld seam, realize.
According in gear shift fork of the present invention preferred design, two half-unit part is identical, and this just makes two half-unit part can utilize same air-bend die manufacture, thereby can save time and cost.
According in another preferred design of gear shift fork of the present invention, the connecting element of slightly long track form is configured to have the side jaw being crimped perpendicular to longitudinal direction, for generation of the shape of U-shape, such design is favourable when the side jaw of track laterally surrounds flat bar respectively in a longitudinal direction.Thus, two half-unit part with have enough rigidity particularly the favourable form of torsional rigid be connected to each other together.
According in another preferred design of gear shift fork of the present invention, connecting element is rigidly connected to two half-unit part together in the central position with respect to gear shift fork.Advantageously, connecting element is equipped with force transfer element such as speed changer reversal means in addition, to power is passed to gear shift fork.By the central position of connecting element, can guarantee strength to pass to symmetrically gear shift fork.
According in another preferred design of gear shift fork of the present invention, connecting element is made by the different material of the material from making two half-unit part.Thus, especially can adopt the material with good deformation performance to manufacture two half-unit part, connecting element can adopt a kind of than manufacturing the harder material manufacture of two half-unit part, to meet the mechanical requirement of material requested, by strength transmission to gear shift fork.
In addition, the present invention relates to a kind of gearshift that is particularly useful for the gear wheel gear change box of Motor Vehicle, this gearshift is equipped with at least one above-mentioned gear shift fork.
In addition, the present invention relates to a kind of gear wheel gear change box that is particularly useful for Motor Vehicle, this gear graduation gear-box is equipped with at least one above-mentioned gear shift fork.
In addition, the present invention relates to a kind of Motor Vehicle with gear wheel gear change box, it is equipped with at least one above-mentioned gear shift fork.
In addition, the present invention relates to a kind of method for the manufacture of above-mentioned gear shift fork.The method comprises by connecting element two is equipped with for swinging support and half parts that hold switching place of slide block and is rigidly connected, and wherein, half parts position by the mode of alignment switching place, to reach the tolerance of desired gear shift fork.Advantageously, by welding mutually to realize being rigidly connected between two half-unit part with connecting element.Two half-unit part is advantageously formed by bending by flat bar.Through hole can be by punching press, boring, milling or similar approach manufacture.
Accompanying drawing explanation
By means of embodiment and with reference to accompanying drawing, the present invention will be described in detail now.Wherein:
Fig. 1 is according to gear shift fork of the present invention embodiment's perspective view;
Fig. 2 is the perspective view of gear shift fork shown in Fig. 1.
Embodiment
Now Fig. 1 and Fig. 2 are made an explanation, wherein set forth one according to the embodiment of gear shift fork of the present invention.
Corresponding therewith, the gear shift fork jointly indicating with reference character 1 is comprised of two congener half parts 2 and a connecting element 3 that above-mentioned two half-unit part 2 is mutually permanently connected.
Each half parts 2 has crooked spatial structure, and it for example, is formed by the flat bar of slightly growing, be comprised of steel plate.Need to carry out repeatedly BENDING PROCESS, in these processes, the different forming stations of flat bar are crimped in the direction of the longitudinal direction perpendicular to flat bar by the power acting on wide forming surface 4 and 15 for this reason.
Thereby the effect of a BENDING PROCESS is, the forming station of first end 5 is carried out to crimping with respect to the second forming station 6 on bending direction.The effect of another one BENDING PROCESS is, by the 3rd forming station 7 with respect to the second forming station 6 crimping in same direction.Another BENDING PROCESS act on, by the 4th forming station 8 with respect to the 3rd forming station 7 crimping in same direction.And, also have the effect of a BENDING PROCESS to be, the 5th forming station 9 is with respect to the 4th forming station 8 crimping on contrary with other bending directions in addition bending direction.Each BENDING PROCESS can be implemented simultaneously or in any order one by one.
When forming two half-unit part, without forming the recessed forming station of side, so just obviously simplified BENDING PROCESS, and save complicated die tool.
In addition, in each half parts 2, by boring, punching press, milling or similar approach form respectively the first switching place 10 and the second switching place 12 on forming station 7 and forming station 9.The first and second switchings place 10,12 can be before flat bar be bent, among or form afterwards simultaneously or successively.
The first switching place 10 for by gear shift fork 1 swinging mounting at for example case of transmission, for this reason, the pivot pin that is for example fixed on case of transmission inserts in the first switching place 10.Thereby under the complete state of assembling, gear shift fork 1 can swing around a swing axis that runs through two switchings place of extend through.
In the second switching place 12, be formed with for holding the bearing housing 11 of slide block, link together to this bearing housing self aspect and slide cartridge form fit, for example, by stretching into the mode that is looped around the circular groove in slide cartridge.
Connecting element 3 interconnects two half-unit part 2 on such position, that is, the end face of forming station 5 that makes two ends on this position opposite one another.At this, the end face of the forming station 5 of two ends reclines mutually or is spaced apart, thereby between two forming stations 5, has one gap.
Two are on position opposite one another by mutual rigidly connected half parts of connecting element 3, and dispose with common formation of its built-in wide forming station 4 the gearshift jaw that side is recessed, to hold slide cartridge.This side is recessed to be obtained by following manner, that is, the spacing that two the second switchings place 12 of gap ratio that two the first switchings place 10 occupy are mutually occupied is each other larger.
Each half parts 2 forms respectively the gearshift jaw side jaw that is equipped with switching place, and each side jaw comprises forming station 7,8 and 9.The arc bending thing that two gearshift jaw side jaws of two half-unit part 2 consist of the forming station 2 and 5 by two half-unit part 2 is connected to each other, and two arc bending things are connected to each other by connecting element 3.
Connecting element 3 is configured with the slightly long track of U-shaped structure, and it is according to there being the side jaw 13 transverse to longitudinal axis crimping, and side jaw reaches the narrow forming station 14 of half parts 2 in relative position.At this, connecting element 3 extends across the forming station 5 of two ends, respectively until half length of adjacent forming station 6.For two half-unit part 2 is connected rigidly, two side jaws 13 of U-rail are connected with half parts 12 by a plurality of isolated weld seams 16.In the embodiment shown, weld seam 16 is in respectively in the region of two forming stations 5 and 6.The quantity of weld seam 16 and position can be determined as required selectively.
By connecting element being designed to U-shaped structure, can making the connection of two half-unit part 2 possess enough rigidity, thereby guarantee the accurate switching of power shift gear.Especially can improve the torsional rigid of gear shift fork 1.
The material of connecting element 3 is different from the material of two half-unit part 2.Two half-unit part 2 is for example made by the steel plate that can be out of shape well, and connecting element is manufactured by relatively thick in contrast to this band iron, to can stand high load when power is passed to gear shift fork.
Connecting element 3 is crimped perpendicular to its longitudinal axis on latter end 17.On this latter end 17, be formed with for power being passed to the speed changer reversal means 22 of gear shift fork 1, this speed changer reversal means can be handled by the speed changer reversal means socket being formed on main shaft.The fixing mode in centre of considering the connecting element 3 of bending thing and gear shift fork 1 has guaranteed that power is almost synchronously passed to gear shift fork 1.
For two half-unit part 2 being connected rigidly by means of connecting element 3, two half-unit part is placed on suitable relative position, on this position, the First Line A being connected with two the first switchings place 10 is parallel to the second line B being connected with two the second switchings place 12 in default tolerance range.This point can be for example by adopting locating stud to realize, and this locating stud extends through the first switching place 10 and the second switching place 12.In desired tolerance range, two half-unit part 2 is especially so positioned, that is, the quadrature x providing according to Fig. 2, y, z coordinate system, line A and line B are not only parallel to each other in z direction, and also parallel to each other in y direction.Line A and line B in x direction, parallel particularly important in the gearshift direction of gear shift fork in other words.After two half-unit part 2 is successfully alignd on desirable position, connecting element 3 is placed in position and with two half-unit part 2 and welds together.
Reference number
1 gear shift fork
2 half parts
3 connecting element
4 built-in wide molding flats
5 forming stations
6 forming stations
7 forming stations
8 forming stations
9 forming stations
10 first switchings place
11 bearing housings
12 second switchings place
13 side jaws
14 narrow molding flats
15 external wide molding flats
16 weld seams
17 latter ends
18 speed changer reversal meanss
19 gearshift jaws

Claims (14)

1. the gear shift fork for the gearshift of the gear wheel gear change box of Motor Vehicle (1), it comprise form gearshift jaw (19), by means of connecting element (3), be rigidly connected to mutually two half-unit part (2) together, wherein, described two half-unit part (2) is mutually the same, and the described connecting element (3) of slightly long track form is configured with the side jaw (13) being crimped perpendicular to longitudinal direction, for generation of the shape of U-shaped.
2. gear shift fork according to claim 1 (1), wherein, described each half parts (2) are configured to crooked, slightly microscler flat bar form.
3. gear shift fork according to claim 2 (1), wherein, the side jaw (13) of described track laterally surrounds respectively described flat bar in a longitudinal direction.
4. according to the gear shift fork described in any one in claim 1 to 2 (1), wherein, together with described half parts (2) are rigidly connected to described connecting element (3) by means of at least one weld seam.
5. according to the gear shift fork described in any one in claim 1 to 2 (1), wherein, described connecting element (3) is rigidly connected to described two half-unit part (2) together in the central position with respect to described gear shift fork.
6. according to the gear shift fork described in any one in claim 1 to 2 (1), wherein, described connecting element (3) is equipped with for power being passed to the force transfer element (18) of described gear shift fork.
7. according to the gear shift fork described in any one in claim 1 to 2 (1), wherein, described connecting element (3) is made by the different material of the material from manufacturing described two half-unit part (2).
8. gear shift fork according to claim 7 (1), wherein, described connecting element (3) is by making than the harder material of material of manufacturing described two half-unit part (2).
9. for a gearshift for the gear wheel gear change box of Motor Vehicle, it has at least one according to the gear shift fork one of claim 1 to 8 Suo Shu.
10. for a gear wheel gear change box for Motor Vehicle, it has at least one according to the gear shift fork one of claim 1 to 8 Suo Shu.
11. 1 kinds of Motor Vehicle with gear wheel gear change box, it has at least one according to the gear shift fork one of claim 1 to 8 Suo Shu.
12. 1 kinds of manufacture methodes for the gear shift fork of the gearshift of the gear wheel gear change box of Motor Vehicle, wherein, be equipped with respectively for switching place (10) of gear shift fork described in swinging mounting with for holding switching place (12) of slide block the two half-unit part (2) of formation gearshift jaw (19) by means of described switching place location and being rigidly connected to together by connecting element (3), and the described connecting element (3) of slightly long track form is configured with the side jaw (13) being crimped perpendicular to longitudinal direction, for generation of the shape of U-shaped.
13. methods according to claim 12, wherein, described half parts form by bending.
14. according to claim 12 to the method one of 13 described, wherein, and together with by welding, described half parts being rigidly connected to described connecting element.
CN200880007071.7A 2007-03-03 2008-02-15 Switching rocker of a shifting device for a gear wheel gear change box and corresponding production method Expired - Fee Related CN101627236B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE200710010362 DE102007010362A1 (en) 2007-03-03 2007-03-03 Switch rocker of a switching device for a gear change box, especially for motor vehicles, comprises two half parts forming a switch mouth that are rigidly interconnected via a connecting element
DE102007010362.1 2007-03-03
PCT/EP2008/051843 WO2008107286A1 (en) 2007-03-03 2008-02-15 Switching rocker of a shifting device for a gear wheel gear change box and corresponding production method

Publications (2)

Publication Number Publication Date
CN101627236A CN101627236A (en) 2010-01-13
CN101627236B true CN101627236B (en) 2014-04-23

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Application Number Title Priority Date Filing Date
CN200880007071.7A Expired - Fee Related CN101627236B (en) 2007-03-03 2008-02-15 Switching rocker of a shifting device for a gear wheel gear change box and corresponding production method

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CN (1) CN101627236B (en)
DE (1) DE102007010362A1 (en)
WO (1) WO2008107286A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT509880B1 (en) 2010-08-05 2011-12-15 Stiwa Holding Gmbh SWITCHING ELEMENT, SWITCHING DEVICE AND METHOD FOR THE PRODUCTION THEREOF
AT509998B1 (en) 2010-08-27 2012-01-15 Stiwa Holding Gmbh SWITCHING DEVICE FOR A GEAR CHANGING GEAR AND METHOD FOR THE PRODUCTION THEREOF
CN106402379A (en) * 2016-05-28 2017-02-15 重庆万虎机电有限责任公司 Gearbox and shifting fork thereof
JP2018054017A (en) * 2016-09-29 2018-04-05 アイシン・エーアイ株式会社 transmission

Citations (3)

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Publication number Priority date Publication date Assignee Title
KR20020038349A (en) * 2000-11-17 2002-05-23 이계안 Shift fork assembly of manual transmission
DE10318677A1 (en) * 2003-04-24 2004-11-25 Ise Industries Gmbh Method for producing shift forks and shift fork for transmissions of motor vehicles
CN2755360Y (en) * 2004-12-31 2006-02-01 苏俭雄 Speed-variable connect-disconnect driver of spring lamination

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DE1848789U (en) * 1961-06-29 1962-03-22 Bosch Gmbh Robert FORK-SHAPED SWIVEL LEVER, IN PARTICULAR FOR ENGAGING THE PINION GEAR OF TURNING MOTORS FOR COMBUSTION MACHINES.
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Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
KR20020038349A (en) * 2000-11-17 2002-05-23 이계안 Shift fork assembly of manual transmission
DE10318677A1 (en) * 2003-04-24 2004-11-25 Ise Industries Gmbh Method for producing shift forks and shift fork for transmissions of motor vehicles
CN2755360Y (en) * 2004-12-31 2006-02-01 苏俭雄 Speed-variable connect-disconnect driver of spring lamination

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Publication number Publication date
WO2008107286A1 (en) 2008-09-12
DE102007010362A1 (en) 2008-09-04
CN101627236A (en) 2010-01-13

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