CN1263962A - Brake for washing machine - Google Patents
Brake for washing machine Download PDFInfo
- Publication number
- CN1263962A CN1263962A CN99121700A CN99121700A CN1263962A CN 1263962 A CN1263962 A CN 1263962A CN 99121700 A CN99121700 A CN 99121700A CN 99121700 A CN99121700 A CN 99121700A CN 1263962 A CN1263962 A CN 1263962A
- Authority
- CN
- China
- Prior art keywords
- brake lever
- brake
- rotation
- wire
- drawing article
- 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
- 238000005406 washing Methods 0.000 title claims abstract description 34
- 238000001035 drying Methods 0.000 claims description 16
- 239000000463 material Substances 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 230000002457 bidirectional effect Effects 0.000 abstract 1
- 230000018044 dehydration Effects 0.000 abstract 1
- 238000006297 dehydration reaction Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010981 drying operation Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/30—Driving arrangements
- D06F37/40—Driving arrangements for driving the receptacle and an agitator or impeller, e.g. alternatively
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D51/00—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like
- F16D51/02—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as one or more circumferential band
- F16D51/04—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as one or more circumferential band mechanically actuated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D65/10—Drums for externally- or internally-engaging brakes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
Abstract
To provide a brake device of a washing machine capable of saving a material cost by the omission of a unidirectional clutch bearing and miniaturizing equipment by controlling the bidirectional rotation of a drum only by the brake device. In this brake device for the washing machine for controlling the rotation of the drum by a brake band by pulling a connection part provided on one end of a brake lever by a pull-out piece provided on a wire to be pulled by the operation of a water discharge motor or releasing pulling force, a brake lever supporting means to be turned together with the brake lever when the wire is pulled and rotated and restored to a prescribed position so as to control the turning of the brake lever when dehydration is ended is provided on the prescribed position of the side face of the brake lever.
Description
The present invention relates to a kind of brake apparatus of washing machine, particularly relate to a kind of one-way clutch that do not have, and only adopt a brake apparatus realize washing-dry cylinder just/counter-rotational washing machine, thereby reduce material cost and realize the miniaturization of product.
In a kind of traditional washing machine as shown in Figure 1, have a body 10, cover parts 20 that are installed in body 10 tops, have a wash bucket 11 that is used for adorning water in the body 10, have a rotating washing/spin dryer tube 12 in the wash bucket 11, impeller 13 that can rotating just agitator is installed on the bottom surface in washing/spin dryer tube 12.
Washing machine following also is installed with a rotatory force generator 14, is used for driving washing/spin dryer tube 12 and impeller 13.
In addition, rotatory force generator 14 comprises that a motor 14a that rotational power is provided and one can be delivered to actuating unit 14b on washing/spin dryer tube 12 and the impeller 13 to the rotatory force of motor 14a selectively by belt 14c.Wash bucket 11 following also is installed with a drainage arrangement 15, the water discharge after being used for will washing after washing and spin-drying operation.
Simultaneously, actuating unit 14b comprises a rotating stirrer shaft 14ba who is bound up on the impeller 13, and it passes in the middle of the bottom surface of wash bucket 11; And rotating drying axle 14bc, it is enclosed within the outside of stirrer shaft 14ba, be fixed on the following of washing/spin dryer tube 12 so that rotate synchronously with it, and stretch out a particular length by seal 14bb in the middle of the bottom surface of wash bucket 11, seal 14bb can prevent that the water in the wash bucket 11 from leaking.
Actuating unit 14b also comprises a upper shell 14be, dries axle 14bc and is installed in rotation on it through its spring bearing 14bd; One can be with drying the rotary drum 14bf that axle 14bc rotates synchronously, and it is sleeved on and dries the lower end that protrudes on the axle 14bc outside the upper shell 14be bottom; And a deceleration device 14bg, be used for the rotatory force of motor 14a is delivered on the stirrer shaft 14ba that stretches out from the lower end of rotary drum body 14bf through deceleration.
Actuating unit also comprises a gear shaft 14bh, it be inserted into the deceleration device 14bg that transmits rotatory force below; A gear-box 14bi who is enclosed among the lower end that also is installed in rotary drum 14bf on the gear shaft 14bh simultaneously; A bearing 14bj is housed is used for the lower house 14bk of turning gear roller box 14bi easily, it is installed in the below of upper shell 14be; And one-way clutch bearing 14bm, it is fixed between the upper surface and gear-box 14bi of lower house 14bk by the fixture 14bl that is made of screw bolt and nut, and allow gear-box 14bi to rotate along a direction, and limit its rotation in another direction.
In addition, actuating unit also has a lining 14bn, and gear shaft 14bh stretches out from the lower end of gear-box 14bi, and lining 14bn just is enclosed within on its external part; A clutch spring 14bp, it is enclosed within the outside of gear-box 14bi and lining 14bn; A sleeve 14bq, it is installed on the periphery of clutch spring 14bp; And a brake apparatus 14br who is installed between upper shell 14be and the lower house 14bk, whether it can decontrol or limit the rotation of rotary drum 14bf according to the work of the first connecting piece 15aa on the drain motor 15a that protrudes below (back can be spoken of).
Actuating unit also comprises a clutch lever 14bs who is installed in brake apparatus 14br below, and when clutch spring 14bp loosens, thereby it makes the external force that clutch spring 14bp loosens with the elimination of brake apparatus 14br interoperation; And a belt pulley 14bu, it is fixed on the screw rod 14bh1 of the gear shaft 14bh that stretches out from lining 14bn and sleeve 14bq by a nut 14bt, so that transmit the rotatory force that motor 14a transmits through belt 14c.
Simultaneously, as Fig. 2, Fig. 3 and shown in Figure 4, brake apparatus 14br has a flute profile hookup 14br1 who is connect by the first connecting piece 15ac, and the first connecting piece 15ac is made up of the wire 15aa on the drain motor 15a and the first guide pad 15ab, brake lever 14br3 can rotate around the brake lever axle 14br2 that is fixed on the ad-hoc location on the upper shell 14be, and with clutch lever 14bs interoperation, the end of a braking strap 14br5 is fixed on the other end of brake lever 14br3, and surrounding rotary drum 14bf, the other end of braking strap 14br5 is fixed on the ad-hoc location of lower house 14bk by a bolt 14br4.
In addition, brake apparatus 14br also has a tripping spring 14br6 who is enclosed within on the brake lever axle 14br2, and after eliminating with convenient drain motor 15a the power on the brake lever 14br3 of acting on, brake lever 14br3 can return to the washing state.Then, the rotatory force of motor 14a can be delivered on the belt pulley 14bu through belt 14c by a motor pulley 14aa.
At this moment, in washing process, rotation by brake apparatus 14br and one-way clutch bearing 14bm restriction rotary drum 14bf, can control 12 rotation of washing/spin dryer tube, and the rotation of motor 14a only drives the impeller 13 that is fixed on the stirrer shaft 14ba top and rotates through the deceleration of decelerator 14bg.
Then, in the drying process, brake lever 14br3 on the brake apparatus 14br, under the pulling of drain motor 15a, make braking strap 14br5 break away from from connecting the rotary drum 14bf that dries axle 14bc, the clutch lever 14bs of spring 14bp of being used for simultaneously letting the clutch be slipped breaks away from from sleeve 14bg, thereby makes that drying an axle 14bc connects mutually with stirrer shaft 14ba under the effect of the rotatory force of clutch spring 14bp.
At this moment, the power of belt pulley 14bu strides across decelerator 14bg, directly drives washing/spin dryer tube 12 and impeller 13 rotations simultaneously.Simultaneously, under the effect of tripping spring 14br6 and braking strap 14br5, prevented that the rotary drum 14bf that links to each other with washing/spin dryer tube 12 from rotating along the clockwise direction among Fig. 3.
But, in Fig. 3 and Fig. 4, when rotary drum 14bf is rotated counterclockwise, and when applying an anticlockwise power, will have problems, braking strap 14br5 pulling brake lever 14br3 brake lever axle 14br2 in Fig. 3 clockwise rotates, and the result brakes strap 14br5 can't wrap rotary drum 14bf, therefore must use one-way clutch bearing 14bm.
In this case, material cost and assembling process have all increased, because the existence of one-way clutch 14bm makes the miniaturization of washing machine brake apparatus to realize.
The present invention is just in order to address the above problem, one object of the present invention just is to provide a kind of brake apparatus that the washing machine rotary drum is done two-way rotation that is used for controlling, this washing machine only has a brake apparatus, reduce material cost owing to having saved one-way clutch, and made the miniaturization of product become possibility.
According to this purpose of the present invention, a kind of brake apparatus of washing machine is provided, this brake apparatus has one and is installed in a drawing article on the wire, and wire is driven by drain motor, drawing article can spur a linkage unit or discharge pulling force, take this to control the rotation of rotary drum by the braking strap, brake apparatus is installed on the ad-hoc location of brake lever side by the brake lever bracing or strutting arrangement, it can rotate with brake lever when wire is tightened up, and after drying process knot speed, it can control the rotation of brake lever.
Below by detailed description with the accompanying drawing, can more fully understand essence of the present invention and purpose, wherein:
Fig. 1 is a longitudinal sectional view describing a kind of conventional washer structure;
Fig. 2 is in this conventional washer, the detailed section view of the motivation transfer motion part of rotatory force generator;
Fig. 3 has showed that a kind of brake apparatus according to prior art is in the washing state schematic diagram in following time;
Fig. 4 has showed that a kind of brake apparatus according to prior art is in the drying state schematic diagram in following time;
Fig. 5 has showed that a kind of brake apparatus according to the present invention is in the washing state schematic diagram in following time;
Fig. 6 has showed that a kind of brake apparatus according to the present invention is in the schematic diagram when drying initial state;
Fig. 7 has showed the schematic diagram when a kind of brake apparatus according to the present invention is in the drying state.
Followingly introduce most preferred embodiment of the present invention in detail with reference to accompanying drawing.
Schematic diagram shows among Fig. 5 the situation of a kind of brake apparatus according to the present invention when being in the washing state, schematic diagram shows among Fig. 6 a kind of brake apparatus according to the present invention be in situation when drying initial state, schematic diagram shows among Fig. 7 the situation of a kind of brake apparatus according to the present invention when being in the drying state, for the ease of expression and description, in these accompanying drawings, with part or part similar among Fig. 1, Fig. 2, Fig. 3 and Fig. 4 or that be equal to, use same label and mark, and omitted unnecessary label.
Brake apparatus according to washing machine of the present invention, have a brake lever bracing or strutting arrangement 14br7 who tightly leans against on the brake lever 14br3, when wire 15aa under the effect of drain motor 15a when pulled, brake lever bracing or strutting arrangement 14br7 can rotate with brake lever 14br3, but can prevent that brake lever 14br3 from rotating under the effect of the pulling force that braking strap 14br5 produces.
In other words, as shown in Fig. 5, Fig. 6 and Fig. 7, for example when rotating counterclockwise under the effect of rotary drum 14bf in rotatory force, braking strap 14br5 just spurs brake lever 14br3, and the existence of brake lever bracing or strutting arrangement 14br7 has just prevented the rotation of brake lever 14br3, so just guaranteed that braking strap 14br5 wraps rotary drum 14bf, the expensive one-way clutch bearing of the use of so just can saving over.
Brake lever bracing or strutting arrangement 14br7 comprises a limit cam 14br7c that can rotate a special angle, and this special angle is determined by second drawing article (back can be mentioned) that is installed on the wire 15aa, wire 15aa is then spurred by drain motor 15a, under the pressure of brake lever 14br3, do then to rotate synchronously, and brake lever 14br3 abuts against with brake lever bracing or strutting arrangement 14br7, thereby prevents that brake lever 14br3 rotates under the tension of braking strap 14br5; Also comprise the drive unit (T) that can come rotary spacing cam 14br7c according to the action of drain motor 15a, it can produce reset force, rotates under the tension of braking strap 14br5 to prevent brake lever 14br3.
Limit cam 14br7c has the elastic part bracing or strutting arrangement 14br7ca that is used for support elastic part 14br7b one end of an evagination, with a drawing article touch device 14br7cb who is installed on the specific range of first drawing article, and first drawing article is installed on the wire 15aa by the action of drain motor 15a pulling, when the second drawing article 15ad that is positioned at linkage unit 14br1 outside when pulled, drawing article touch device 14br7cb rotates with regard to being touched.
Drive unit (T) also comprises a pivot 14br7a, so that support limit cam 14br7c rotationally; An elastic part (14br7b; Torsion spring) be enclosed within on the pivot 14br7a, an end of elastic part is supported on the brake lever, and the other end is supported on the limit cam 14br7c; And wire 15aa who is installed in by drain motor 15a pulling goes up and and the first drawing article 15ab between the second drawing article 15ad of a specific range is arranged so that compressing drawing article touch device 14br7cb and make limit cam 14br7c rotate.In addition, with the contacted surface of brake lever 14br3 on, have many groove 14br7d on the limit cam 14br7c, to increase frictional force therebetween.
Therefore, during the washing in Fig. 5, when rotary drum 14bf rotated counterclockwise the generation reaction force, braking strap 14br5 and brake lever 14br3 can not break away from from the circumferential surface of rotary drum 14bf, thereby employed expensive one-way clutch bearing before can saving.
In other words, when drain motor 15a stopped operating, the elastic part 14br7b on the drive unit (T) just made limit cam 14br7c reset, thereby had prevented the shake of brake lever 14br3.
Below carried out more detailed description.Limit cam 14br7c among Fig. 5 has been subjected to a unidirectional force, for example anticlockwise power, under the effect of the elastic force of the elastic part 14br7b on the pivot 14br7a, keep in touch between limit cam 14br7c and the brake lever 14br3, here, brake lever 14br3 can't realize counterclockwise motion, and this is because its limited cam 14br7c hinders, and limit cam only has been subjected to the power perpendicular to pivot 14br7a.After this, after braking strap 14br5 was worn, under the effect of elastic part 14br7b, limit cam rotated an angle according to the wear extent of braking strap 14br5, thereby has prevented that not stopping transport of brake lever 14br3 is moving.
Simultaneously, when the drying process begins, the second drawing article 15ad spurs the side surface of limit cam 14br7c under the effect of drain motor 15a, limit cam 14br7c is rotated around its pivot 14br7a, for example, clockwise rotate, as shown in Figure 6, thereby brake lever 14br3 is broken away from from the contact portion of limit cam 14br7.
After this, as shown in Figure 7, when drain motor 15a is rotated further and spurs wire 15aa, the first drawing article 15ab that is positioned at wire 15aa top just spurs the linkage unit 14br1 that is positioned at brake lever 14,br3 one side, and brake lever 14br3 promotes limit cam 14br7c rotation under the effect of the first drawing article 15ab as a result.
Simultaneously, when the end of drying process, under the effect of tripping spring 14br6 reset force, brake lever 14br3 resets, and as shown in Figure 5, and elastic part 14br7b promotes limit cam 14br7c rotation, contacts with brake lever 14br3 until elastic part 14br7b.
By above description as can be seen, washing machine brake apparatus according to the present invention has a benefit, that is exactly, only produce adhesive force and come the brake lever of rotational support on the brake lever bracing or strutting arrangement by the braking strap, just can realize washing/rotating of drying tube, employed one-way clutch bearing before so just can saving, thus material cost and the miniaturization that realizes product reduced.
Although the present invention is described in detail, must understand that those skilled in the art can carry out various modifications under the situation that does not exceed marrow of the present invention and scope with reference to most preferred embodiment.Therefore, this does not also mean that the present invention only is confined to the scope of these most preferred embodiments, and scope of the present invention is limited by claims subsequently.
Claims (4)
1, a kind of brake apparatus of washing machine, it is characterized in that, it has a drawing article that is installed on the wire, when drain motor pulling wire, and drawing article pulling linkage unit or release pulling force, thereby rotation by braking strap control rotary drum, brake apparatus is installed in the specific lateral position of brake lever by the brake lever bracing or strutting arrangement, when wire when pulled, it together rotates with brake lever, and after the drying process finishes, the rotation of control brake lever.
2, device as claimed in claim 1 is characterized in that, the brake lever bracing or strutting arrangement comprises:
One is installed in rotation on a limit cam on the pivot, has specific range between the center of rotation of itself and brake lever, it can limit the rotation of brake lever during washing, and the rotation that during drying, prevents and brake the contacted rotary drum of strap, and the rotation of guiding brake lever;
Elastic part by pivotal support, it applies elastic force to limit cam, so that limit cam can limit the rotation of brake lever during washing;
A drawing article that links to each other with linkage unit, the one end links to each other with wire, and when drain motor pulling wire, this drawing article can make limit cam rotate prior to brake lever, thereby makes brake lever freely to rotate during drying.
3, device as claimed in claim 2 is characterized in that, an end of drawing article links to each other with another drawing article, and links to each other with wire at the other end of linkage unit outside, certain distance and another drawing article moves in linkage unit.
4, device as claimed in claim 2 is characterized in that, an end of elastic part is supported on a side of brake lever, and the other end is fixed on a side of limit cam, and has a plurality of grooves on a side of the limit cam that adheres to brake lever.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019990003817A KR100286562B1 (en) | 1999-02-01 | 1999-02-01 | A brake device of washing machine |
| KR993817 | 1999-02-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1263962A true CN1263962A (en) | 2000-08-23 |
| CN1114003C CN1114003C (en) | 2003-07-09 |
Family
ID=19573405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99121700A Expired - Fee Related CN1114003C (en) | 1999-02-01 | 1999-10-15 | Brake for washing machine |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3121814B2 (en) |
| KR (1) | KR100286562B1 (en) |
| CN (1) | CN1114003C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100414027C (en) * | 2002-12-20 | 2008-08-27 | 乐金电子(天津)电器有限公司 | Clutch brake belt assembling structure of washer |
| CN1955362B (en) * | 2005-10-27 | 2010-05-12 | 松下电器产业株式会社 | washing machine |
| CN103334263A (en) * | 2013-06-26 | 2013-10-02 | 无锡小天鹅股份有限公司 | Clutch driver rod for washing machine, and clutch and washing machine with clutch driver rod |
| CN105921450A (en) * | 2016-05-18 | 2016-09-07 | 龙福环能科技股份有限公司 | Water washing machine |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101186310B1 (en) | 2005-05-23 | 2012-09-27 | 엘지전자 주식회사 | Brake apparatus for washing machine |
| CN113186687B (en) * | 2021-04-28 | 2023-04-04 | 海信冰箱有限公司 | Pulsator washing machine |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2502269Y2 (en) * | 1990-01-31 | 1996-06-19 | 松下電器産業株式会社 | Breaker for washing machine |
| KR940001103Y1 (en) * | 1991-09-03 | 1994-02-25 | 주식회사 금성사 | Serial and parallel data converter circuit |
| JP2626432B2 (en) * | 1992-12-07 | 1997-07-02 | 日本電気株式会社 | Oscillation circuit |
| JP3513221B2 (en) * | 1994-08-19 | 2004-03-31 | 三菱電機株式会社 | Electric washing machine |
| KR0133605Y1 (en) * | 1995-03-09 | 1999-04-15 | 정도철 | Braking System of Fully Automatic Washing Machine |
| KR200161969Y1 (en) * | 1997-03-25 | 1999-12-01 | 배길성 | Braking force control device of washing machine |
-
1999
- 1999-02-01 KR KR1019990003817A patent/KR100286562B1/en not_active IP Right Cessation
- 1999-10-15 CN CN99121700A patent/CN1114003C/en not_active Expired - Fee Related
- 1999-10-26 JP JP11304585A patent/JP3121814B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100414027C (en) * | 2002-12-20 | 2008-08-27 | 乐金电子(天津)电器有限公司 | Clutch brake belt assembling structure of washer |
| CN1955362B (en) * | 2005-10-27 | 2010-05-12 | 松下电器产业株式会社 | washing machine |
| CN103334263A (en) * | 2013-06-26 | 2013-10-02 | 无锡小天鹅股份有限公司 | Clutch driver rod for washing machine, and clutch and washing machine with clutch driver rod |
| CN103334263B (en) * | 2013-06-26 | 2017-02-08 | 无锡小天鹅股份有限公司 | Clutch driver rod for washing machine, and clutch and washing machine with clutch driver rod |
| CN105921450A (en) * | 2016-05-18 | 2016-09-07 | 龙福环能科技股份有限公司 | Water washing machine |
| CN105921450B (en) * | 2016-05-18 | 2018-11-23 | 龙福环能科技股份有限公司 | A kind of rinsing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3121814B2 (en) | 2001-01-09 |
| KR20000055282A (en) | 2000-09-05 |
| CN1114003C (en) | 2003-07-09 |
| JP2000218090A (en) | 2000-08-08 |
| KR100286562B1 (en) | 2001-03-15 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030709 Termination date: 20121015 |