CN101086108B - Wave wheel swinging type washing machine swinging device water seal structure - Google Patents
Wave wheel swinging type washing machine swinging device water seal structure Download PDFInfo
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- CN101086108B CN101086108B CN2006100839163A CN200610083916A CN101086108B CN 101086108 B CN101086108 B CN 101086108B CN 2006100839163 A CN2006100839163 A CN 2006100839163A CN 200610083916 A CN200610083916 A CN 200610083916A CN 101086108 B CN101086108 B CN 101086108B
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Abstract
The invention involves a water sealing structure of wave wheel swinging washing machine swinging device, the structure is used for the wave wheel swinging washing machine, said wave wheel swinging washing machine includes outer barrel, inner barrel, wave wheel, dewatering axle connected with inner barrel, wave wheel axle which is connected with wave wheel and is installed coaxially with dewatering axle, swing device which is connected with wave wheel axle and wave wheel and can drive wave wheel swing during washing processing, the top of said swing device is equipped with a hunt element connected with wave wheel, the dewatering axle below the wave wheel is equipped with a blade wheel, it is characterized by: a sealing sleeve is installed between the opposite sides of swing element and blade wheel to prevent water in the thrust bearings between the driving parts and the driven parts; said sealing sleeve is soft sealing sleeve, the upper end is sealed and fixed on the outer round of swing element and the lower end is equipped with attraction force sealing ring pressed on the back of blade wheel. The arrangement of the sealing sleeve in the invention can prevent the driving element, driven element and bearing etched, and it does not impact the movements of driving elements and the driven elements.
Description
Technical field
The present invention relates to the sealing structure for water of a kind of washing machine, particularly a kind of Wave wheel swinging type washing machine swinging device.
Background technology
Washing machine is equipped with the cylindrical shape rotary barrel washing clothes of clothing and washings by rotation.This washing machine has been divided into roller washing machine and rotary drum washing machine.For roller washing machine, the rotary barrel level is installed in the casing and comes back rotation around the trunnion axis of casing repeatedly, so that the clothing that is positioned at the rotary barrel bottom inner surface is moved up, and allow to be arranged in the clothing at rotary barrel top because the bottom that gravity is fallen rotary barrel, washing clothes thus.The rotary barrel that rotary drum washing machine has an impeller (impeller) is vertically mounted in the casing and comes back rotation around the vertical axis of casing, utilizes the clothing in the pressure current washing rotary barrel that impeller produces by clothing thus.Fig. 1 is the structural representation of traditional rotary drum washing machine.As shown in the figure, described rotary drum washing machine comprises the casing 1 that constitutes washing machine shell.The staving parts are made up of two stavings, are installed in the casing 1.Be that wash bucket 2 is vertically mounted in the casing, washings are mounted in it, and interior bucket 3 is installed in the wash bucket 2, and interior bucket 3 turns and be concentric with wash bucket 2, has a large amount of dewatering hole 3c on the sidewall of interior bucket 3.Bottom in impeller 4 is installed in the bucket 3, it produces the washing current in interior bucket 3.Rotary drum washing machine also comprises drive motors 5 and the power transmission component 6 between the bottom of the bottom that is installed in wash bucket 2 and casing 1.Drive motors 5 is reversible electric machines, and it can export reversible rotatory force.Power transmission component 6 is sent to the staving parts with the reversible rotatory force of drive motors 5 outputs, and bucket 3 and impeller 4 rotate in making thus.
The method of operation of above-mentioned rotary drum washing machine with impeller 4 is as follows: clothing is put into bucket 3, and opening power, water at first is injected in the wash bucket 2.Drive motors 5 rotates the power that rotates, and this rotatory force is sent to impeller 4 by the wash shaft 6b of power transmission component 6, thereby rotates impeller 4 in an opposite direction.But this de-rotation of impeller 4 produces compulsory washing current in interior bucket 3, thereby clothing moved with compulsory washing current forcibly, simultaneously with inner surface and other clothing CONTACT WITH FRICTION, the washing clothes thus of interior bucket 3.
When washing procedure was finished, washings were discharged into the outside of washing machine through scupper hose 8.The water filling rinsing, after rinsing program, the high speed revolving force of drive motors 5 is sent to interior bucket 3 by the dehydrating shaft 6a of power transmission component 6, and interior bucket 3 high speed rotating make clothes dewatering.After dehydration procedure finished, washing machine finished the whole washing program.
In the washing mode operating period of traditional rotary drum washing machine, impeller 4 alternately rotates on relative direction, comes washing clothes to produce compulsory washing current in interior bucket 3.Clothing is forced to move on relative direction, so clothing is intertwined.Traditional rotary drum washing machine can wear and tear and damage clothing, and after the laundry operations end, the user need untie the clothing that is intertwined, and uses inconvenience, consumes the extra time.
In addition, in order to make impeller 4 change its direction of rotation fast repeatedly, reversible drive motors 5 short time intervals start repeatedly, consume a large amount of electric energy during washing procedure.This alternate rotation of drive motors 5 has also reduced its service life.
Moreover traditional rotary drum washing machine will force current to force the rotation clothing to strengthen clean result on relative direction by utilizing.The user must use a large amount of water and washing agent, pollutes the environment so inevitably.Particularly current water resource lacks, and using water wisely, and strict restriction contaminated environment need to solve the existing the problems referred to above of conventional wave wheel washer.
A kind of improved laundry technology, as having proposed a kind of rinsing maching that makes impeller form swing in the patents of invention such as the patent No. 95103237.2,95103238.0,95103239.9, wherein, CD-ROM drive motor 100 drives driving shaft 92 by transmission device 102, the rotation that driving shaft 92 makes base plate 80 tilt around a sloping shaft by swing pinion system 95, this sloping shaft is around the central shaft rotation of driving shaft, thereby realization produces swing when rotating.Since adopt mechanical structure, its complex structure, and the noise during gears engaged work is very big.No matter this scheme is washing, rinsing or dehydration, and impeller presents skewed all the time, and Wave aslant during dehydration is unfavorable for drying balance.
Be called in the patent of invention of washing machine 02127350 of application number, disclose a kind of device that in washing machine, makes wash-board produce swing, the bottom in described pendulous device 20 is installed in the bucket 3.When described washing machine was carried out washing procedure, pendulous device 20 made wash-board be positioned at obliquity, and the driving shaft rotation makes wash-board produce swing, and clothing swings up and down and is washed.When described washing machine was carried out dehydration procedure, pendulous device 20 made wash-board be positioned at horizontal level, and pendulous device 20 rotates with interior bucket 3 thus, thereby dries clothing.The structure of described pendulous device 20 as shown in Figure 2, the lower end of vertical rotation axis 21 is connected the upper end of the wash shaft 6b of power transmission component 6 by the adapter sleeve 70 of tubulose.The upper end of this vertical rotation axis 21 is connected to the bottom of first rotatable parts 30 by first locking pin 32.When wash shaft 6b rotated, vertical rotation axis 21 rotated with first rotatable parts 30.
The upper surface of first rotatable parts 30 constitutes first inclined surface 31, and this first inclined surface 31 tilts with a certain inclination angle along the radial direction of wash shaft 6b.The lower surface of second rotatable parts 40 is positioned on the upper surface of first rotatable parts 30, the lower surface of these second rotatable parts 40 constitutes second inclined surface 41, this second inclined surface 41 along the radial direction of wash shaft 6b to tilt with the same inclination angle of first inclined surface 31.Described two inclined-planes 31 and 41 inclination angle have determined the angle that swings up and down of wash-board 60.In the present invention, two inclined-planes 31 and 41 inclination angles are preferably about 5 °～20 °.The position conversion of pendulous device 20 between swing position and horizontal level realizes with respect to the angle position of first inclined surface 31 of first rotatable parts 30 by second inclined surface 41 that changes second rotatable parts 40, inclination rotating shaft 22 is contained in the inclined hole 44 of second rotatable parts 40 rotationally, and identical with the inclination angle of first inclined surface 31 and second inclined surface 41 with respect to the inclination angle of vertical rotation axis 21.The bottom of inclination rotating shaft 22 is connected to the top of first rotatable parts 30 by locking pin 33, and therefore the tilt rotating shaft 22 and first rotatable parts 30 rotate together.When vertical rotation axis 21 rotated, first rotatable parts 30 and inclination rotating shaft 22 were rotated simultaneously.
One support component 80 is sleeved on second rotatable parts 40, and support component 80 is rotatably supporting second rotatable parts 40, and simultaneously support component 80 is supporting wash-board 60, so that wash-board 60 swings up and down and do not rotate during washing procedure.In order to support second rotatable parts 40 and second rotatable parts 40 can be rotated with respect to support component 80, clutch shaft bearing 42 is installed between second rotatable parts 40 and the support component 80.In order to seal the upper and lower side that 42, two oil sealings 43 of clutch shaft bearing are installed in clutch shaft bearing 42 respectively.The upper surface of second rotatable parts 40 is horizontal planes.One actuated components 50 is positioned on the horizontal upper surface of second rotatable parts 40.
Described actuated components 50 comprises an actuation plate 51, and described actuation plate 51 is fastened on the upper surface of second rotatable parts 40 by a clamping screw 55.Two isolated pins 53, the upper surface from actuated components 50 on spaced positions protrudes upward predetermined altitude.Activate the upper end that pin 54 laterally is installed in inclination rotating shaft 22, activate pin 54 and block, second rotatable parts 40 are rotated by the direction of expectation cause wash-board to be in obliquity or horizontal level according to one of them of turning to of inclination rotating shaft 22 by pin 52 and pin 53.Described support component 80 is covered by outer cover 85.Second rotatable parts 40 are installed in rotation in the support component 80 by bearing 42.Therefore, no matter whether second rotatable parts 40 rotate, and must stabilize support component 80, so that support component 80 does not rotate.To achieve these goals, flexible fixator 86 is installed between housing 24 and the support component 80 round the core of first rotatable parts 30 and housing 24.Described fixator 86 has flexibility in vertical direction, so that adapt to the swing of wash-board 60.The upper and lower end of fixator 86 is fastened on housing 24 and the support component 80 by fastening line respectively.
Wave aslant when 02127350 patent has solved the big and dehydration of 95103238.0 existing noises is unfavorable for drying the problem of balance.But this structure remains in following deficiency:
1, the inclined surface between first rotatable parts 30 and second rotatable parts 40 is in contact with one another, and causes wearing and tearing, can not guarantee angle of inclination and level.
Be immersed in the cleaning solution when 2, first rotatable parts 30 and second rotatable parts 40 are worked, be corroded easily.
Summary of the invention
The objective of the invention is above-mentioned deficiency, and a kind of sealing structure for water of Wave wheel swinging type washing machine is provided, enter washing machine swinging device to prevent cleaning solution at prior art.
The sealing structure for water of Wave wheel swinging type washing machine provided by the present invention is realized by following technical scheme.
A kind of sealing structure for water of Wave wheel swinging type washing machine swinging device, be used for Wave wheel swinging type washing machine, described Wave wheel swinging type washing machine comprises outer bucket, interior bucket, impeller, in connecting the dehydrating shaft of bucket be connected impeller and the impeller axle coaxial setting of dehydrating shaft, and connection impeller axle and impeller, in washing process, make the pendulous device of impeller swing, described pendulous device top is provided with shimmy of a connection impeller, the following dehydrating shaft of impeller is provided with an impeller, it is characterized in that: between the back side of shimmy and impeller, be provided with a sealing shroud, be used for anti-sealing and enter thrust bearing between driving link and the Passive part; Described sealing shroud is a flexible gland, and its upper end is sealingly fastened on shimmy the cylindrical, and its underpart makes the flexible gland lower end be pressed in interior tube bottom by gravitation.
Described sealing structure for water is characterized in that gravitation makes on the impeller that the flexible gland lower end is pressed in.
The sealing structure for water of described Wave wheel swinging type washing machine swinging device is characterized in that: be provided with sealing ring between impeller and shimmy, be used for anti-sealing and enter bearing.
The sealing structure for water of described Wave wheel swinging type washing machine swinging device is characterized in that: described gravitation sealing ring is the gravity ring.
The sealing structure for water of described Wave wheel swinging type washing machine swinging device is characterized in that: described gravity ring is that metal heavily encircles, as the cast iron ring.
The sealing structure for water of described Wave wheel swinging type washing machine swinging device is characterized in that: described gravity ring is nonmetal heavy ring, as cement sheath.
The sealing structure for water of described Wave wheel swinging type washing machine swinging device is characterized in that: described gravitation sealing ring is a magnet ring, and described magnet ring is located at the flexible gland bottom; Be provided with an annulus of making by ferromagnetic material at the back side of impeller, the magnet ring of described flexible gland by the bottom be adsorbed on the annulus that ferromagnetic material makes and with the sealing backside of impeller.
Described sealing shroud is a flexible gland, and its upper end is sealingly fastened on shimmy the cylindrical, and its underpart makes the flexible gland lower end be pressed in interior tube bottom by gravitation; Perhaps, gravitation makes on the impeller that the flexible gland lower end is pressed in.
Gravitation of the present invention is meant the gravity of flexible gland self, and/or additional gravity ring, and/or additional magnetic force adsorbent equipment.
When adopting magnetic material to form absorption affinity, at least a portion of magnet ring and interior tube bottom or upper impeller is a magnetic material, and another part is to be constituted by the material that magnetic is adsorbed.Perhaps, described magnet ring and interior tube bottom or upper impeller all are to adopt magnetic material to make, and their polarity is opposite.
The invention has the advantages that:
Being provided with of sealing shroud guaranteed driving link, Passive part and bearing not by aqueous corrosion, and can not influence the motion of driving link, Passive part.
For structure of the present invention, feature and effect thereof are had further understanding, enumerate specific embodiment now and be described with reference to the accompanying drawings as follows:
Description of drawings
Fig. 1 is the structure chart of existing swing washing machine.
Fig. 2 is the structure chart of existing another kind of swing washing machine.
Fig. 3 is the structure chart that the present invention swings washing machine.
Fig. 4 is the structure chart that the present invention swings the washing machine sealing shroud.
Fig. 5 is the another kind of structure chart that the present invention swings the washing machine sealing shroud.
The specific embodiment
The invention provides a kind of sealing structure for water of Wave wheel swinging type washing machine swinging device, described Wave wheel swinging type washing machine as shown in Figure 3.Wobbling washing machine of the present invention comprises outer bucket 101, interior bucket 102, impeller 103, connect in bucket 102 hollow sleeve dehydrating shaft 104 be connected impeller and the impeller axle 105 coaxial setting of hollow sleeve dehydrating shaft, and the pendulous device that in washing process, makes impeller 103 swings, wherein: the driving shaft 106 that on impeller axle 105, connects universal rotating shaft, one driving link 108 joins by spending driven shaft 107 strong or cooperation of square shaft hole and universal rotating shaft, makes the driven shaft 107 of universal rotating shaft drive driving links 108 rotations; Described dehydrating shaft 104 is affixed with interior bucket bottom by ring flange 111, the end of described dehydrating shaft 104 is provided with one and stretches into interior logical extension 112, on the outside on the extension of dehydrating shaft 104 is provided with unilateral bearing 109 on the extension 112 that two bearings 113 arranged side by side and a unilateral bearing 109, one Passive parts 110 are set in dehydrating shaft 104; Described driving link 108 is the inclined-plane of same angle with the end face that Passive part 110 joins.The inclined-plane setting of same angle, after two inclined-planes are joined, driving link 108 and Passive part 110 coaxial lines, two inclined-planes join behind relative Rotate 180 degree, driving link 108 and Passive part 110 axes intersect certain angles, this angle equal the inclined-plane major diameter on justifying with vertical cross-section with two times of major diameter coplane diameter angle.Be provided with cavity 115, one end face thrust bearings 114 between both ends of the surface and be located in the described cavity 115, described end face thrust bearing is the plane needle roller thrust bearing.So that do not rub between the end face that driving link 108 and Passive part 110 join, improve service life.
Between the driving link 108 of washing machine of the present invention and the Passive part 110 by 180 degree rotations, make driving link 108 respectively with 110 one-tenths coaxial positions of Passive part or intersection location, and can drive Passive part 110 and rotate.
Be provided with an impeller 140 between the bottom surface of interior bucket 102 and the impeller 103, be used for preventing that impeller from ajusting the process Passive part and moving with driving link, described impeller 140 and described Passive part 110 are affixed.Described impeller is provided with protruding wobble heads 160 in the middle of it, in washing process, carry out the shimmy clothing that beats.
In order to prevent that washings from entering driving link, Passive part, bearing and universal drive shaft, on described rocking equipment, be provided with a plurality of water seals described, comprising:
Between the end of Passive part 110 and dehydrating shaft 104, be provided with and prevent that washings from entering the big water seal 130 of bearing;
Be provided with sealing ring 117 between impeller 103 and shimmy 116;
Between bottom shimmy 116 and interior barrel, be provided with a sealing shroud 150, be used for preventing that sealing enters the thrust bearing between driving link and the Passive part.When being provided with an impeller 140 between the bottom surface of interior bucket 102 and impeller 103,150 of described sealing shrouds are located between the back side of shimmy 116 and impeller 140.
Described sealing shroud 150 is flexible glands, and its upper end is sealingly fastened on shimmy 116 the cylindrical, and its underpart is provided with the gravitation ring at the back side that is pressed in impeller.
Be a kind of embodiment of gravitation ring as shown in Figure 4, in Fig. 4 specific embodiment, described gravitation ring is heavily to encircle 151.Described heavy ring 115 is that metal heavily encircles, as the cast iron ring.Also can be nonmetal heavy ring, as cement sheath.
Be the embodiment of another kind of gravitation ring as shown in Figure 5, in Fig. 5 specific embodiment, described gravitation ring is the magnetic pull ring, specifically is, is provided with a magnet ring in the flexible gland bottom; Be provided with an annulus of making by ferromagnetic material at the back side of impeller, the magnet ring of described flexible gland by the bottom be adsorbed on the annulus that ferromagnetic material makes and with the sealing backside of impeller.Be provided with a magnet ring 152 of being made by ferromagnetic material at the back side of impeller, described flexible gland is adsorbed on the annulus that iron substance makes by bottom magnet ring 152 and with the sealing backside of impeller.
Above-mentioned sealing device is black can be to be provided with a magnet ring at the back side of impeller, is provided with an annulus of being made by ferromagnetic material in described flexible gland bottom, and the magnet ring by the impeller back side attracts annulus that iron substance makes and with the sealing backside of impeller.
Wobbling washing machine of the present invention is the rotating shaft that connects universal joint on the impeller axle of common decelerator, and the lower circumference of universal driven shaft is provided with spline, and a driving link that has an inclined-plane joins by the driven shaft of spline and universal rotating shaft; Two bearing holder (housing, cover)s arranged side by side are adorned on universal rotating shaft driven shaft in one shimmy inside, and shimmy can rotate freely under two bearing effects arranged side by side, and a wobble-plate (impeller) is fixed on shimmy; Passive part pack into successively unilateral bearing, two bearings arranged side by side, big water seal, the Passive part that will dress up one then is sleeved on the dehydrating shaft.Driving link and Passive part contact-making surface are the inclined-plane of same angle, and needle bearing is set between both ends of the surface.
During washing, the motor counter-rotating, the decelerator wash shaft drives universal rotating shaft rotation by universal joint, and universal rotating shaft drives the driving link rotation.After driving link tilted along the inclined-plane rotation, driving link stooped next drive rod, drives the projection of following Passive part side, and driving link and Passive part keep the heeling condition rotation always.Because shimmy is that bearing is connected with universal rotating shaft, the wobble-plate of installing with shimmy one (impeller) can rotate freely around universal rotating shaft, make the universal rotating shaft can be in the bearing inward turning then wave impeller and can not rotate but impeller periphery and bucket end mill are examined the effect of power, wave the impeller each point and can only carry out shimmy thereby make.Under the washing duty, impeller tilts all the time.
During dehydration, motor just changes, the driving link reverse rotation, the driving link drive rod drives the projection of Passive part opposite side, Passive part is under the unilateral bearing effect, and Passive part can not just change with driving link, and universal rotating shaft is set upright, driving link becomes vertical state with Passive part, driving link, Passive part, interior bucket running together dewater.Impeller is ajusted and is in level and the together rotation of interior bucket under the dewatering state.
In the tiltedly positive transfer process of driving link rotating, the flexible gland bottom remains under gravity or magneticaction with the impeller back side and fits tightly, and guarantees that washings portion enters in the flexible gland.
Claims (7)
1. the sealing structure for water of a Wave wheel swinging type washing machine swinging device, be used for Wave wheel swinging type washing machine, described Wave wheel swinging type washing machine comprises outer bucket, interior bucket, impeller, in connecting the dehydrating shaft of bucket be connected impeller and the impeller axle coaxial setting of dehydrating shaft, and connection impeller axle and impeller, in washing process, make the pendulous device of impeller swing, described pendulous device top is provided with shimmy of a connection impeller, the following dehydrating shaft of impeller is provided with an impeller, it is characterized in that: the driving shaft that on the impeller axle, connects universal rotating shaft, one driving link cooperates by spline or square shaft hole and the driven shaft of universal rotating shaft joins, and makes the driven shaft of universal rotating shaft drive the driving link rotation; Described dehydrating shaft is affixed by ring flange and interior bucket bottom, the end of described dehydrating shaft is provided with one and stretches into interior barrel extension, the outside is provided with two bearing arranged side by side and unilateral bearings on the extension of dehydrating shaft, and a Passive part is set on the unilateral bearing on the extension of dehydrating shaft; The end face that described driving link and Passive part join is the inclined-plane of same angle; Between the end of Passive part and dehydrating shaft, be provided with and prevent that washings from entering the big water seal of bearing; Be provided with sealing ring between impeller and shimmy; Between the back side of shimmy and impeller, be provided with a sealing shroud, be used for anti-sealing and enter thrust bearing between driving link and the Passive part; Described sealing shroud is a flexible gland, and its upper end is sealingly fastened on shimmy the cylindrical, and its underpart is pressed on the impeller flexible gland lower end by gravitation.
2. sealing structure for water according to claim 1 is characterized in that described gravitation is the gravity of flexible gland self, or the gravity of additional gravity ring, or the gravitation of additional magnetic force adsorbent equipment.
3. sealing structure for water according to claim 2 is characterized in that: described gravity ring is that metal heavily encircles.
4. sealing structure for water according to claim 2 is characterized in that: described gravity ring is the cast iron ring.
5. sealing structure for water according to claim 2 is characterized in that: described gravity ring is nonmetal heavy ring.
6. sealing structure for water according to claim 2 is characterized in that: described gravity ring is a cement sheath.
7. sealing structure for water according to claim 2 is characterized in that: described magnetic force adsorbent equipment is to be provided with a magnet ring in the flexible gland bottom; Be provided with an annulus of making by ferromagnetic material at the back side of impeller, the magnet ring of described flexible gland by the bottom be adsorbed on the annulus that ferromagnetic material makes and with the sealing backside of impeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100839163A CN101086108B (en) | 2006-06-06 | 2006-06-06 | Wave wheel swinging type washing machine swinging device water seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100839163A CN101086108B (en) | 2006-06-06 | 2006-06-06 | Wave wheel swinging type washing machine swinging device water seal structure |
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| Publication Number | Publication Date |
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| CN101086108A CN101086108A (en) | 2007-12-12 |
| CN101086108B true CN101086108B (en) | 2011-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2006100839163A Active CN101086108B (en) | 2006-06-06 | 2006-06-06 | Wave wheel swinging type washing machine swinging device water seal structure |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4791691A (en) * | 1985-04-25 | 1988-12-20 | Hitachi, Ltd. | Washing machine and method of washing clothes |
| CN1103448A (en) * | 1994-04-18 | 1995-06-07 | 孙善骏 | Hydraulic wave wheel washer |
| CN2249255Y (en) * | 1995-11-04 | 1997-03-12 | 俞忠华 | Cylinder of washing machine |
-
2006
- 2006-06-06 CN CN2006100839163A patent/CN101086108B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4791691A (en) * | 1985-04-25 | 1988-12-20 | Hitachi, Ltd. | Washing machine and method of washing clothes |
| CN1103448A (en) * | 1994-04-18 | 1995-06-07 | 孙善骏 | Hydraulic wave wheel washer |
| CN2249255Y (en) * | 1995-11-04 | 1997-03-12 | 俞忠华 | Cylinder of washing machine |
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| CN101086108A (en) | 2007-12-12 |
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