CN1624227A - Method for operation of fast running knitting machine - Google Patents
Method for operation of fast running knitting machine Download PDFInfo
- Publication number
- CN1624227A CN1624227A CNA2004100766854A CN200410076685A CN1624227A CN 1624227 A CN1624227 A CN 1624227A CN A2004100766854 A CNA2004100766854 A CN A2004100766854A CN 200410076685 A CN200410076685 A CN 200410076685A CN 1624227 A CN1624227 A CN 1624227A
- Authority
- CN
- China
- Prior art keywords
- drive unit
- absolute position
- absolute
- main shaft
- sley bar
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B27/00—Details of, or auxiliary devices incorporated in, warp knitting machines, restricted to machines of this kind
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B27/00—Details of, or auxiliary devices incorporated in, warp knitting machines, restricted to machines of this kind
- D04B27/10—Devices for supplying, feeding, or guiding threads to needles
- D04B27/24—Thread guide bar assemblies
- D04B27/26—Shogging devices therefor
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B27/00—Details of, or auxiliary devices incorporated in, warp knitting machines, restricted to machines of this kind
- D04B27/06—Needle bars; Sinker bars
- D04B27/08—Driving devices therefor
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B27/00—Details of, or auxiliary devices incorporated in, warp knitting machines, restricted to machines of this kind
- D04B27/10—Devices for supplying, feeding, or guiding threads to needles
- D04B27/16—Warp beams; Bearings therefor
- D04B27/20—Warp beam driving devices
- D04B27/22—Warp beam driving devices electrically controlled
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Knitting Machines (AREA)
- Looms (AREA)
Abstract
Provided is an operating method of a rapid travelling loom is capable of improving control motion of a moved part. A rapid travelling loom contains at least one of driving parts. An absolute position of the driving part is detected by an absolute-value providing part. The absolute position is delivered to a controlling part. Increment of a position of the driving part is detected when operating velocity is exceeded. Increment value of the driving part is estimated when the driving part is moved.
Description
The present invention relates to a kind of method of work of fast turn-around knitting machine, this knitting machine has at least one drive unit, wherein determines the absolute position of drive unit by an absolute value transducer, and this absolute position is transferred in the control device.
Be that example is explained the present invention with the chain type knitting machine below.For example working needle, card wire, thin plate etc. carry out work to work packages different in the chain type knitting machine together.Each work package is fixed on the needle bar pad in groups mode respectively.Knitwear are produced in motion by the control needle bar pad.In age early, the mutual mechanical couplings of the motion of each work package.Main shaft by the chain type knitting machine makes the centre-driven device be used for all working spare.In order to connect these work packages, therefore need the transmission device of some relative complex sometimes.These transmission devices have limited the use of normal structure, and are difficult to realize the exchange of standard component more.
Recently, people turn to the use electric driver gradually.In this drive unit, between different operating spare, do not adopt mechanical couplings usually.In order to make work package work, need such information: these work packages where.People obtain this information by the position of drive unit in the simplest mode.Below, " position of drive unit " refers to is not that drive unit is provided with the position in knitting machine, but the working part of drive unit is with respect to the position of the stationary components of drive unit, perhaps refers to the position of the element of mechanical connection with it with respect to the stationary components of drive unit.When making drive unit with a rotating driving device, the position of drive unit is the angle position of rotor with respect to stator.
In control procedure, use the position of drive unit.Employed driving device controls device accessory drive like this, thus definite rule is followed in its position.
Especially when starting chain type knitting machine, the absolute position of understanding drive unit is indispensable.For this reason, must use absolute value transducer, this sensor is determined the absolute position of drive unit and is further reported to control device.When drive unit moves, also determine this absolute position, and further this absolute position is reported to control device.This can be realized when the chain type knitting machine has lower operating rate like a dream technically.But, when the operating rate of chain type knitting machine was big, difficulty had appearred.In this case, institute's data quantity transmitted has correspondingly increased.Although can handle with technical available mechanism now, big like this data volume,, machine is suitable complex and expensive but.
The objective of the invention is to improve, in the knitting machine work of fast turn-around to the control of moving component.
This purpose realizes that by following mode when surpassing predetermined operating rate, the position of drive unit is determined on increment ground on the basis of the method for the described prior art of beginning.
When knitting machine one surpasses predetermined operating rate, just no longer measure absolute value, but be limited to: determine of the variation of the position of drive unit with respect to last position.Therefore, data quantity transmitted obviously to reduce.In many cases, people carry analog signal, analyze increment then in control device.There, in the ordinary course of things, " the intelligence effect " that always is necessary, promptly Bi Yao calculated capacity is for using.In addition, determine that by control device increment can produce such advantage, can realize obviously improving resolution ratio.In absolute value transducer, for considering in the space, only, on these positions, in fact can evaluate with some allocations really.When people determined increment by analog signal, can make resolution ratio raising manyfold such as coefficient was 10 to 100 or more.Therefore, can obtain much accurate location.Therefore, can obviously improve the control of drive unit.Can certainly, in absolute value transducer, produce increment, therefore the output at this sensor makes increment information be in digital form.Under the simplest situation, the information that needs transmission to form by a bit, rather than transmit a value that comprises the absolute position of drive unit, and this value can only be used a plurality of byte representations in the ordinary course of things.Therefore, not only simplified transfer of data.And make and to become convenient, and can realize quickly by control device analysis.In addition, the minimizing of information content has such advantage, has reduced vulnerability to jamming.When for example losing data owing to external disturbance, this only influences an increment.Such increment is suitable with the distance of for example 1/100mm.But the corresponding interference when the transmission absolute position is relevant with bigger adjustment path.Analog signal when position sensor is transferred to control device, this problem can disappear.This processing mode is preferred at present.
Preferably, when drive unit is static, determine the position utterly, and this absolute value is transferred in the control device, and when drive unit moves, only assess increment.In this case, Yu Ding operating rate is zero.When operating rate was big, the position of drive unit, for example rotor still were that increment ground is determined with respect to the angle position of stator.Because people are in this case from determined absolute position when static, so in fact people have obtained the needed information of accessory drive during the whole motion process of drive unit.
Preferably, when drive unit is static, determine the absolute position of drive unit, and this absolute position is stored in the nonvolatile storage.Therefore, when restarting at every turn, drive unit all have drive unit when static, to be in information where.Improved the control of this starting significantly by this information.
Preferably, use stored auxiliary energy to determine the absolute position.Therefore, prevent to be subjected to supply with the interference that produces owing to interrupting energy.When for example can not get, can employ the absolute position that auxiliary energy is determined drive unit owing to the electric energy that has a power failure or other interruption makes knitting machine carry out work.Auxiliary energy for example is stored in battery or the battery.
Preferably, before producing motion by drive unit, determine the actual absolute position of drive unit, actual absolute position and stored absolute position are compared, and consider the poor of stored absolute position and actual absolute position, therefore proofread and correct.When knitting machine is shut down the time interval of a setting, for example when changing shifts finishes or work is interrupted, can adjust this drive unit.In this case, the absolute position during starting is no longer consistent with stored absolute position.This can cause the generation disturbed under disadvantageous situation.In order to eliminate this interference, proofread and correct drive unit, very little with the danger that causes interference.Owing to know stored absolute position, so people can be used as standard value to stored position and the difference between the physical location.
Advantageously, use a plurality of drive units, one of them driving device controls main shaft, and another driving device controls sley bar, therefore, when inconsistent, the drive unit that is in the sley bar on the storage location is moved in the storage absolute position of the drive unit of the actual absolute position of the drive unit of sley bar and sley bar.We can say that in this case, people have set up stored output situation again.This is a simple relatively method, does not disturb when guaranteeing to start.
Preferably, when the storage absolute position of the actual absolute position of main shaft and main shaft was inconsistent, people moved on the corresponding to position of the physical location with main shaft the drive unit of sley bar.Therefore, true below considering, main shaft has preferred direction of rotation usually, and the drive unit of main shaft is the maximum drive device in the knitting machine in the ordinary course of things.Also abandoned changing the position of main shaft, still, made the absolute position of sley bar be adapted to the actual absolute position of main shaft.Each position of main shaft, to speak by the book more be the position that each position of drive unit of main shaft comprises sley bar.This relation is known.Therefore can follow the tracks of the sley bar of main shaft.Main shaft is as so-called " master ", and the drive unit of sley bar is as " slave unit ".
Preferably, life cycle-absolute absolute value transducer, and when static, cut off drive unit.The cycle-absolute absolute value transducer does not have difference between each cycle, but the angle position of rotor with respect to stator for example determined in its only definite drive unit position in one-period.What it related to is that first commentaries on classics, second is changeed or the n commentaries on classics is unconspicuous.Such absolute value transducer is quite cheap.They are enough to determine the position of drive unit before debugging.When by cutting off drive unit when preventing that the position of drive unit under this static situation from carrying out bigger change when static, life cycle-absolute absolute value transducer is realized needed correction after also being enough to compare between stored absolute position and actually determined absolute position.Therefore, this cut-out is not necessarily desirable.Drive unit carries out littler motion and allows fully.These less motions do not surpass one-period.In drive unit or originally on one's body driving of drive unit, also needn't cut off.Because people can prevent that the work package that drive unit drives from moving, therefore in the ordinary course of things, be enough to make the motion of these elements such as needle bar pad to stop or brake.
Therefore, preferably,, when proofreading and correct the position of drive unit, make this difference surpass the one-period limit when the difference between actual absolute position and the stored absolute position during less than predetermined periodic component.Also needn't in one-period, obtain described storage values.When for example can try to achieve 100 absolute values and this storage location in each cycle is 10 and actually determined position when recording 90, then can be in the identical cycle drive unit be corrected to 90 from 10, be transferred to 90 from 10 and in the previous cycle, surpass the one-period limit.
Preferably, this component is 49% to the maximum.In fact also proofread and correct by half period.
Preferably, sin/cos sensor or decomposer are used as absolute value transducer.This absolute value transducer of two types just has expense reasonable on market, and can be preferably, use in combination with control device, drive unit and sensor and analytical electron.
Below, in conjunction with the accompanying drawings, the present invention is described in further detail according to preferred embodiment.
Fig. 1, it shows the chain type knitting machine with schematic, simple view.
Chain type knitting machine 1 has main shaft 2, and this main shaft 2 rotatably is driven along the direction of arrow 3.Rotatablely move in order to produce, main shaft 2 is provided with for example electro-motor of a drive unit 4, and this drive unit 4 is connected with main shaft 2 by clutch 5.
The coupling joint 6 of main shaft 2 by just schematically showing is connected with working needle needle bar pad (wirnadelbarre) 7.The working needle needle bar pad is loaded with many working needles 8 and along the direction deflection back and forth of double-head arrow 9.
Sley bar (legebarre) 10 has many card wires 11, and these card wires are in the seam of the pin between working needle 8 under the shown situation.Sley bar 10 is connected with drive unit 12, and this drive unit 12 makes sley bar 10 move back and forth at sidepiece along the direction of double-head arrow 13.Now,, make the motion (linear movement) of the motion (yaw motion) of working needle 8 and card wire 11 so consistent mutually, consequently form knitwear in when work.Certainly, knitting machine 1 also has other operation element, as slip wiring board, removable wiring board with can be fixed on this class device on the needle bar pad.Also more than one sley bar can be set.Each such needle bar pad can have an independently drive unit, perhaps can be connected on the drive unit of another needle bar pad or on the main shaft.But,, make an explanation with shown very simple example for knowing reason.The professional is easy to just can to realize the transmission to a plurality of drive units.
Two drive units 4,12 are electro-motor.Specially suitable is in this case, to be for example synchronous motor of permanent magnet excitation of servo motor.But, also can use asynchronous motor, dc motor or stepping motor, as long as it can make main shaft 2 or sley bar 10 location enough accurately.
In order to realize Position Control, therefore be provided with a control device 14, this control device 14 is being controlled drive unit 4,12, for example by pulse.
Drive unit 4 has an absolute value transmitter 15, and this transmitter 15 is determined the absolute position of drive unit 4.At this, " absolute position " is construed as movement parts in the drive unit 4 with respect to the position of static element, and for example rotor is with respect to the angle position of stator.Drive unit 12 has an absolute value transmitter 16 too, and this transmitter 16 is determined the absolute position of drive unit 12.These two absolute value transmitters 15,16 can for the cycle-absolute absolute value transmitter, i.e. their absolute values of generation in rotation one week of drive unit only.This is just enough usually.For example, people are used as absolute value transmitter 15,16 to sin/cos-transmitter or decomposer.Certainly below these also can replace the cycle-absolute transmitter (it is for being called " individual pen "-transmitter), promptly use so-called " multi-turn "-transmitter, in fact, this " multi-turn "-transmitter can be determined the absolute position at bigger rotary area.
Absolute value transmitter 15 reports to control device 14 to the absolute position of the drive unit 4 of main shaft 2.The absolute position of main shaft 2 is determined by the position of drive unit 4 (position of the moving parts that is its inside of speaking by the book more).The diagram of absolute position needs for example more byte of bigger data volume.In order to explain this, show a bigger data circuit 17, by this data circuit 17 absolute position of drive unit 4 is transported in the control device 14.
Absolute value transmitter 16 also reports to control device 14 to the absolute position by data circuit 18 in a similar fashion.
As long as time enough is arranged, transfer of data is just so not harsh so.Not only main shaft 2 is in staticly, and sley bar 10 is in staticly, do not have problem.The transmission of main shaft 2 and sley bar 10 absolute position by sley bar-drive unit 12 and main shaft-drive unit 4 when low-speed motion can not have problems.
When chain type knitting machine 1 carried out work with higher operating rate, situation was different.In this case, can be transferred to absolute value in the control device 14 by data circuit 17,18 as before.But mass data amount transmission cost at short notice is bigger.
In order to address this problem, drive unit 4,12 1 motions, the absolute value of use location no longer just, but determine the increment of the position of drive unit 4,12., no longer binary-coded information is transferred in the control device 14, i.e. for this reason data signal, but for example the sine and the cosine signal of sin/cos sensor are transferred in the control device 14 analog signal.In order to explain this point, therefore show circuit 19,20.Circuit 19,20 not necessarily exists practically.Certainly reality is carried the analogue value by the circuit identical with being used for the position absolute value.In control device 14, analyze these analog signals with corresponding A/D converter fast, to obtain increment, realize that by this increment other position is definite by high-resolution.
When drive unit 4,12 does not produce the motion of main shaft 2 or sley bar 10, in order to make the work of chain type knitting machine, also can be adjusted to the absolute position of drive unit 4,12 fixingly, and this absolute position is transferred in the control device 14.
In case when 1 starting of chain type knitting machine and drive unit 4,12 motions, main shaft 2 and sley bar 10 drive, and then switch the value that does not re-use the absolute position, and only use the variation in the absolute position, be i.e. increment size.
When chain type knitting machine 1 is static, because operator's conscious manipulation or power failure, in case machine stops, determine the absolute position of main shaft driving device 4 and sley bar drive unit 12 immediately, and the absolute position of main shaft driving device 4 is stored in the memory 21 and the absolute position of sley bar drive unit 12 is stored in the memory 22.Two memories the 21, the 22nd, therefore nonvolatile storage can preserve institute's canned data when power failure.In order also to determine these positions when the power failure, a battery 23, capacitor or another electric storage means are set, this battery 23, capacitor or another electric storage means are given memory 21,22 and absolute value transducer 15,16 power supplies.
When chain type knitting machine 1 one stops, brake 24,25 inserts, and these brakes make main shaft 2 or sley bar 10 stop further motion.Greatly the little motion in the zone of 1 millimeter or 3 degree also is possible certainly.But the position of drive unit 4,12 is carried out bigger variation and has been prevented from.
Before machine carried out work again, absolute value transducer 15,16 was determined the physical location of drive units 4,12, and they and position stored in memory 21,22 are compared.When producing deviation, proofread and correct this deviation according to following mode:
When the physical location of sley bar drive unit 12 and stored position are inconsistent, handle sley bar drive unit 12 and reach stored position.
When the physical location of main shaft driving device 4 and stored position are inconsistent, make the main shaft driving device 4 that is on the physical location remain on the original place, and operation sley bar drive unit 12.Sley bar drive unit 12 with sley bar 10 move to corresponding to position, the relevant position of working needle needle bar pad 7 on, promptly consistent with the relevant position of main shaft 2.Such position also can be a run location.Importantly, each work package has predetermined corresponding relation.
The cycle-possiblely in the absolute absolute value transducer 15,16 be, in the dwell time of machine 1, main shaft driving device 4 or sley bar drive unit 12 produce motion, this motion surpasses the one-period limit.When for example one-period of sley bar drive unit 12 is divided into 100 parts and when determining that at once the position is 10 after machine stops, and the physical location of determining afterwards is 90, people will can not make sley bar drive unit 12 90 turn back to 10 from same period, but from current period 90 move to following one-period 10 in.As long as with half less than the cycle of the difference of value stored in next or previous cycle, people will realize the motion that this cycle is cross-domain so.Have only when the half of this difference greater than the cycle, people could realize proofreading and correct in one-period.
Claims (11)
1. method that the knitting machine that makes fast turn-around carries out work, this knitting machine has at least one drive unit, wherein determine the absolute position of drive unit by an absolute value transducer, and this absolute position is transferred in the control device, it is characterized in that, when surpassing predetermined operating rate, the position of drive unit is determined on increment ground.
2. the method for claim 1 is characterized in that, when drive unit is static, determines described position utterly, and this absolute value is transferred in the control device, when drive unit moves, only assesses increment.
3. the method for claim 1 is characterized in that, when drive unit is static, determines the absolute position of drive unit, and this absolute position is stored in the nonvolatile storage.
4. method as claimed in claim 3 is characterized in that, uses stored auxiliary energy to determine the absolute position.
5. method as claimed in claim 3, it is characterized in that, before producing motion by drive unit, determine the actual absolute position of drive unit, this actual absolute position and stored absolute position are compared, and consider that the difference of stored absolute position and actual absolute position proofreaies and correct.
6. method as claimed in claim 5, it is characterized in that, use a plurality of drive units, one of them driving device controls main shaft, and another driving device controls sley bar, when consistent, make the drive unit motion that is in the sley bar on the storage location in the actual absolute position of the drive unit of sley bar with the storage absolute position of the drive unit of sley bar.
7. method as claimed in claim 6 is characterized in that, when the storage absolute position of the actual absolute position of main shaft and main shaft is inconsistent, the drive unit of sley bar is moved on the corresponding to position of the physical location with main shaft.
8. the method for claim 1 is characterized in that, life cycle-absolute absolute value transducer, and when shutting down, cut off drive unit.
9. method as claimed in claim 8 is characterized in that, when the difference between actual absolute position and the stored absolute position during less than predetermined periodic component, this difference is crossed the one-period limit when proofreading and correct the position of drive unit.
10. method as claimed in claim 9 is characterized in that this component is 49% to the maximum.
11. the method for claim 1 is characterized in that, people are used as absolute value transducer to sin/cos sensor or decomposer.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10333010.0 | 2003-07-18 | ||
| DE10333010A DE10333010B4 (en) | 2003-07-18 | 2003-07-18 | Method for operating a high-speed knitting machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1624227A true CN1624227A (en) | 2005-06-08 |
| CN100430545C CN100430545C (en) | 2008-11-05 |
Family
ID=33462004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100766854A Expired - Fee Related CN100430545C (en) | 2003-07-18 | 2004-07-16 | Method for operation of fast running knitting machine |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1498529A1 (en) |
| JP (1) | JP2005042292A (en) |
| KR (1) | KR100572172B1 (en) |
| CN (1) | CN100430545C (en) |
| DE (1) | DE10333010B4 (en) |
| TW (1) | TWI265219B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113337954A (en) * | 2020-03-03 | 2021-09-03 | 卡尔迈耶斯托尔研发有限公司 | Warp knitting machine and method for controlling the movement of a first guide bar carrying a first looping tool of a warp knitting machine |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012135209A1 (en) | 2011-03-27 | 2012-10-04 | Abb Technology Ag | Tap changer with an improved drive system |
| CA2831594C (en) | 2011-03-27 | 2019-05-21 | Abb Technology Ag | Tap changer with an improved monitoring system |
| CN104294476B (en) * | 2014-10-22 | 2016-05-11 | 浙江越剑机械制造有限公司 | A kind of Warp Knitted Fabrics start-stop car intelligence control system and control method thereof |
| CN109736007B (en) * | 2019-03-12 | 2020-04-07 | 江南大学 | Pattern loading control implementation method for high-speed double-needle-bar warp knitting machine |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5413551B2 (en) * | 1973-04-26 | 1979-05-31 | ||
| DE2825969A1 (en) * | 1978-06-14 | 1979-12-20 | Zangs Ag Maschf | PROCEDURE FOR DETERMINING THE SWITCHING POINTS FOR SPECIAL FUNCTIONS OF AUTOMATIC EMBROIDERY, QUILTING AND SEWING MACHINES |
| DE4215691C2 (en) * | 1992-05-13 | 1996-07-25 | Mayer Textilmaschf | Warp knitting machine |
| DE4215798C2 (en) * | 1992-05-13 | 1994-03-24 | Mayer Textilmaschf | Warp knitting machine |
| DE19727352A1 (en) * | 1996-07-10 | 1998-01-15 | Heidenhain Gmbh Dr Johannes | Position determining method for rotor drive |
| DE19639316A1 (en) * | 1996-09-25 | 1998-03-26 | Heidenhain Gmbh Dr Johannes | Position measuring system and measuring method |
| DE29713979U1 (en) * | 1997-07-04 | 1997-10-16 | Textilma Ag, Hergiswil | Warp knitting machine, in particular crochet galloon machine |
-
2003
- 2003-07-18 DE DE10333010A patent/DE10333010B4/en not_active Expired - Fee Related
-
2004
- 2004-06-02 EP EP04012978A patent/EP1498529A1/en not_active Withdrawn
- 2004-07-14 KR KR1020040054690A patent/KR100572172B1/en not_active IP Right Cessation
- 2004-07-15 TW TW093121167A patent/TWI265219B/en not_active IP Right Cessation
- 2004-07-16 CN CNB2004100766854A patent/CN100430545C/en not_active Expired - Fee Related
- 2004-07-16 JP JP2004209882A patent/JP2005042292A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113337954A (en) * | 2020-03-03 | 2021-09-03 | 卡尔迈耶斯托尔研发有限公司 | Warp knitting machine and method for controlling the movement of a first guide bar carrying a first looping tool of a warp knitting machine |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10333010A1 (en) | 2005-03-03 |
| KR20050009671A (en) | 2005-01-25 |
| TW200517543A (en) | 2005-06-01 |
| CN100430545C (en) | 2008-11-05 |
| KR100572172B1 (en) | 2006-04-18 |
| EP1498529A1 (en) | 2005-01-19 |
| TWI265219B (en) | 2006-11-01 |
| DE10333010B4 (en) | 2008-07-24 |
| JP2005042292A (en) | 2005-02-17 |
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Granted publication date: 20081105 Termination date: 20110716 |