CN201736806U - Directly connected-type small wheel tractor transmission with 6+2 gears - Google Patents
Directly connected-type small wheel tractor transmission with 6+2 gears Download PDFInfo
- Publication number
- CN201736806U CN201736806U CN201020172460XU CN201020172460U CN201736806U CN 201736806 U CN201736806 U CN 201736806U CN 201020172460X U CN201020172460X U CN 201020172460XU CN 201020172460 U CN201020172460 U CN 201020172460U CN 201736806 U CN201736806 U CN 201736806U
- Authority
- CN
- China
- Prior art keywords
- gear
- gear box
- clutch housing
- housing assembly
- axle
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a directly connected-type small wheel tractor transmission with 6+2 gears. The transmission comprises a traverse gear box, a clutch housing assembly and a rear power output device, wherein the traverse gear box comprises a gear box body and a first gear system arranged in the gear box body, wherein the first gear system comprises a longitudinal hollow shaft assembly and a bevel gear pair, and a plurality of gear box transverse middle shafts and a plurality of pairs of gear pairs, which are arranged in the gear box body; the clutch housing assembly comprises a clutch housing and a second gear system longitudinally arranged in the clutch housing; the gear box body is fixedly connected with the clutch housing; the rear power output device comprises a longitudinal transmission shaft, a middle transmission shaft, a rear power output shaft and a rear power output control mechanism which are longitudinally arranged in the gear box body and the clutch housing. The transmission is compact in structure, small in volume, small in diesel engine power loss and high in transmission efficiency.
Description
Technical field
The utility model relates to trac. driving device technical field, relates in particular to a kind of associated mode small four-wheel tractor driving device that is suitable for the 6+2 gear of the trac. below 25 horsepowers.
Background technology
At present, the associated mode four-wheeled tractor more than 25 horsepowers that China produces adopts the longitudinal change speed gear box mostly, no side takeoff output, and price is higher relatively; Associated mode small four-wheel tractor below 25 horsepowers is because of reasonable price, and the user is outstanding day by day to its demand, and small four-wheel tractor mostly is belt-driving, and driving efficiency is lower, skids easily during heavy load work, and power ascension is restricted.Have the direct connection small-size 4-wheel transmission now again because of unreasonable structure, poor performance, particularly back takeoff output intensity difference, easily out of supply can not satisfy the performance-oriented demand of user.
The utility model content
Technical problem to be solved in the utility model provides a kind of compact conformation, the diesel engine power loss is little, performance is good is suitable for the trac. below 25 horsepowers and can makes full use of the small four-wheel tractor change speed gear box manufacturing line of prior art, can guarantee the inheritance of technology, again can actv. save the associated mode small four-wheel tractor driving device of the 6+2 gear of resource.
For solving the problems of the technologies described above, the technical solution of the utility model is: the associated mode small four-wheel tractor driving device of 6+2 gear, comprise the pressure-bearing type change speed gear box, described pressure-bearing type change speed gear box comprises gear box and is arranged at first gear system that interior being used to of described gear box drives the shaft of tractor rotation that described first gear system comprises vertical hollow shaft component and bevel-gear pair and the horizontal tween drive shaft of Duo Gen change speed gear box and many to gear pair that is arranged in the described gear box; Clutch housing assembly, described clutch housing assembly comprise clutch-bell cover and vertically are arranged at interior second gear system that is used for the transmission of power of driving engine is given described pressure-bearing type change speed gear box of described clutch-bell cover; Described gear box is captiveed joint with clutch-bell cover; Back power take-off implement, described back power take-off implement comprises the longitudinal drive shaft that vertically is arranged in described gear box and the clutch-bell cover, tween drive spindle, rear power output shaft, back takeoff output steering unit.
As optimized technical scheme, described first gear system also comprises diff, described diff is arranged in the described gear box, and is positioned at the driven end of first gear system, is used for driving two semiaxis that tractor wheels is rotated with giving through the transmission of power after the speed change.
As to improvement of the technical scheme, described second gear system comprises clutch housing assembly I axle, shifting slide gear and clutch housing assembly II axle.Described clutch housing assembly I axle is connected with driving engine by power-transfer clutch, and power input driving gear is installed on the described clutch housing assembly I axle; Described shifting slide gear is installed in the front end of hollow shaft component, controls the slip locations of described shifting slide gear by secondary trasmission shifting system, shift fork, locking steel ball; An intermediate gear and a duplex gear are installed, described intermediate gear and the power input driving gear engagement that is installed on the described clutch housing assembly I axle on the described clutch housing assembly II axle; The big gear wheel of described dual gear and the pinion that is installed in the described shifting slide gear of hollow shaft component front end.
As to improvement of the technical scheme, described change speed gear box also is provided with the back power take-off implement, described back power take-off implement comprises the longitudinal drive shaft that vertically is arranged in described gear box and the clutch-bell cover, power input driving gear on the front end of described longitudinal drive shaft passes the hollow shaft component and is installed in described clutch housing assembly I axle is connected by invoice serration, and the rear end of described longitudinal drive shaft is connected with tween drive spindle by the slip engagement cover; Tween drive spindle, the front end of described tween drive spindle is equipped with shift sleeve, is connected with the longitudinal drive shaft rear end by the slip engagement cover, and the rear end is equipped with back takeoff output driving gear; Rear power output shaft, described rear power output shaft is installed in the rear portion of described gear box, the end that described rear power output shaft is positioned at described gear box is equipped with back takeoff output driven gear, described back takeoff output driven gear and the takeoff output driving gear engagement of described back; Back takeoff output steering unit is used to control described shift sleeve and engages with the rear end of described longitudinal drive shaft or separate.
As to improvement of the technical scheme, the left side of described change speed gear box is provided with side takeoff output port.
As to improvement of the technical scheme, the left end of described change speed gear box first bevel gear shaft stretches out described gear box, forms described side takeoff output port.
Owing to adopted technique scheme, the associated mode small four-wheel tractor driving device of 6+2 gear, comprise the pressure-bearing type change speed gear box, described pressure-bearing type change speed gear box comprises gear box and is arranged at first gear system that interior being used to of described gear box drives the shaft of tractor rotation that described first gear system comprises vertical hollow shaft component and bevel-gear pair and the horizontal tween drive shaft of Duo Gen change speed gear box and many to gear pair that is arranged in the described gear box; Clutch housing assembly, described clutch housing assembly comprise clutch-bell cover and vertically are arranged at interior second gear system that is used for the transmission of power of driving engine is given described pressure-bearing type change speed gear box of described clutch-bell cover; Described gear box is captiveed joint with clutch-bell cover; Back power take-off implement, described back power take-off implement comprises the longitudinal drive shaft that vertically is arranged in described gear box and the clutch-bell cover, tween drive spindle, rear power output shaft, back takeoff output steering unit; Whole transmission device compact conformation, volume are little, and the loss in efficiency of diesel engine is little, the driving efficiency height; The utility model is the further improvement of making on the basis of existing small four-wheel tractor change speed gear box, and existing small four-wheel tractor change speed gear box machining production line can be fully used, and the resource that avoids waste has guaranteed good technology inheritance again effectively.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 be among Fig. 1 A-A to cutaway view;
Fig. 3 be among Fig. 1 B-B to cutaway view;
Among the figure: the 1-clutch-bell cover; 2-clutch housing assembly I axle; 3-clutch housing assembly II axle; The 4-intermediate gear; The 5-dual gear; The 6-circular nut; 7-takeoff output shaft-cup; The 8-rear power output shaft; Takeoff output driven gear behind the 9-; The 10-tween drive spindle; Takeoff output driving gear behind the 11-; 12-slip engagement cover; The 13-longitudinal drive shaft; The 14-shifting slide gear; 15-locks steel ball; The secondary trasmission shifting system of 16-; The 17-shift fork; 19-power input driving gear; 20-change speed gear box II axle; 21-II, V shelves gear; 22-IV, VI shelves gear; 23-change speed gear box III axle; 24-I, III shelves driving gear; 25-change speed gear box IV axle; 26-I, III, IV, VI shelves shifting slide gear; 27-change speed gear box V axle; The 28-diff; The 29-gear box; 30-deceleration big gear wheel; 31-II, V reverse gear shifting slide gear; The 32-ring gear; 33-constant-mesh ring gear; The 34-driving gear; The 35-reverse driving gear; The 36-drive bevel gear; 37-change speed gear box first bevel gear shaft; 38-side power take-off cover; The 39-bearing cap shim; 40-constant-mesh driving gear; 41-hollow shaft component; Takeoff output steering unit behind the 42-.
The specific embodiment
For convenience of explanation, the direction that will be parallel to the trac. direct of travel is defined as vertically, will be defined as laterally perpendicular to the direction of trac. direct of travel.
As Fig. 1, Fig. 2 and shown in Figure 3, the associated mode small four-wheel tractor driving device of 6+2 gear, comprise the pressure-bearing type change speed gear box, described pressure-bearing type change speed gear box comprises gear box 29 and is horizontally set at first gear system that described gear box 29 interior being used to drive the shaft of tractor rotation that described first gear system comprises vertical hollow shaft component 41 and bevel-gear pair and the horizontal tween drive shaft of Duo Gen change speed gear box and many to gear pair that is horizontally set in the described gear box 29; Clutch housing assembly, described clutch housing assembly comprise clutch-bell cover 1 and vertically are arranged at second gear system that is used for the transmission of power of driving engine is given described pressure-bearing type change speed gear box in the described clutch-bell cover 1; Described gear box 29 is bolted to connection together with clutch-bell cover 1.Because the front end of described pressure-bearing type change speed gear box is fixedly connected with clutch housing assembly, little, the big gear wheel that described clutch housing assembly is stirred shifting slide gear 14 through secondary selector gear 16 respectively with the large and small gear mesh of dual gear 5, obtain two kinds of rotating speeds of height.
Described first gear system also comprises diff 28, described diff 28 is arranged in the described gear box 29, and be positioned at the driven end of first gear system, be used for giving driving two semiaxis that tractor wheels is rotated through the transmission of power after the speed change.
Described second gear system comprises clutch housing assembly I axle 2, shifting slide gear 14 and clutch housing assembly II axle 3.Described clutch housing assembly I axle 2 is connected with driving engine by power-transfer clutch, and key is connected with power input driving gear 19 on this clutch housing assembly I axle 2; The front end key of described clutch housing assembly II axle 3 is connected with an intermediate gear 4 and a duplex gear 5, described intermediate gear 4 and power input driving gear 19 engagements that are installed on the described clutch housing assembly I axle 2.The big gear wheel of described dual gear 5 and the pinion that is installed in the described shifting slide gear 14 of hollow shaft component 41 front ends.
Lock with circular nut 6 and stop washer the rear end of described clutch housing assembly II axle 3, described shifting slide gear 14 is installed in the front end of hollow shaft component 41, by its slip locations of control such as secondary trasmission shifting system 16, shift fork 17, locking steel balls 15, the rear end of described hollow shaft component 41 is mounted in the described gear box 29 by spline and drive bevel gear 36, described drive bevel gear 36 is meshed with the finishing bevel gear cuter of change speed gear box first bevel gear shaft 37, will give described change speed gear box first bevel gear shaft 37 by the transmission of power of driving engine output;
Described change speed gear box also is provided with the back power take-off implement, described back power take-off implement comprises the longitudinal drive shaft 13 that vertically is arranged in described gear box 29 and the clutch-bell cover 1, power on the front end of described longitudinal drive shaft 13 passes hollow shaft component 41 and is installed in described clutch housing assembly I axle 2 input driving gear 19 is connected by invoice serration, and the rear end of described longitudinal drive shaft 13 is overlapped 12 by slip engagement and is connected with tween drive spindle 10; Tween drive spindle 10, the front end of described tween drive spindle 10 is equipped with shift sleeve 12, is connected with longitudinal drive shaft 13 rear ends by slip engagement cover 12, and the rear end is equipped with takeoff output driving gear 11 afterwards; Rear power output shaft 8, described rear power output shaft 8 is installed in the rear portion of described gear box 29, the end that described rear power output shaft 8 is positioned at described gear box 29 is equipped with back takeoff output driven gear 9, described back takeoff output driven gear 9 and takeoff output driving gear 11 engagements of described back; Back takeoff output steering unit 42 is used to control described shift sleeve 12 and engages with the rear end of described longitudinal drive shaft 13 or separate.By the number of teeth of takeoff output driving gear after the proper transformation 11, can make rear power output shaft 8 obtain different rotating speeds with back takeoff output driven gear 9.
The left side of described change speed gear box also is provided with side takeoff output port, wherein, described change speed gear box first bevel gear shaft 37 left ends stretch out described gear box 29, promptly form described side takeoff output port, can drive the agricultural machinery and implement that need the side takeoff output, satisfying the requirement of user, when not needing the side takeoff output to power side output, side power take-off cover 38 can be installed in side takeoff output port place, to guarantee safety.
Described change speed gear box also is provided with the finishing bevel gear cuter slack adjuster, described finishing bevel gear cuter slack adjuster is the bearing cap shim 39 that is arranged on described change speed gear box first bevel gear shaft, 37 left side bearings and gland place, is used to regulate the finishing bevel gear cuter back lash of described drive bevel gear 36 and change speed gear box first bevel gear shaft 37.
The work drive path: clutch housing assembly I axle 2 rotates under the driving of power engine, and drive clutch housing assembly II axles 3 by the power on it input driving gear 19 and the intermediate gear 4 that is meshed with it and rotate, realize the miniature gears and the big gear wheel engagement that is installed in the shifting slide gear 14 on hollow shaft component 41 front ends of the dual gear 5 on the clutch housing assembly II axle 3 by handling secondary selector gear 16, drive hollow shaft component 41 and rotate.The drive bevel gear 36 that is installed in hollow shaft component 41 rear ends is meshed with the finishing bevel gear cuter of change speed gear box first bevel gear shaft 37, driving change speed gear box first bevel gear shaft 37 rotates, and the constant-mesh driving gear 40 by being installed in change speed gear box first bevel gear shaft 37 is meshed with constant-mesh ring gear 33 on being installed in change speed gear box II axle 20, driving change speed gear box II axle 20 rotates, and be meshed with ring gear 32 on being installed in change speed gear box III axle 23 by the driving gear 34 of change speed gear box II axle 20, driving change speed gear box III axle 23 rotates, on the change speed gear box III axle 23 IV is installed also, VI shelves gear 22, II, V shelves gear 21, I on the change speed gear box III axle 23, III shelves driving gear 24 and the I that is installed on the change speed gear box IV axle 25, III, IV, the big gear wheel of VI shelves shifting slide gear 26 is meshed, driving change speed gear box IV axle 25 rotates, and be meshed with deceleration big gear wheel 30 on being installed in change speed gear box V axle 27 by the reduction pinion teeth on the change speed gear box IV axle 25, driving change speed gear box V axle 27 rotates, the deceleration big gear wheel of miniature gears on change speed gear box V axle 27 and diff 28 engagement again, drive diff 28 work, power is delivered to respectively on the semiaxis of diff 28 in the semiaxis housing of change speed gear box both sides, the drive semiaxis rotates, and can realize I shelves speed change; By that analogy, by the engage position of conversion I, III, IV, VI shelves shifting slide gear 26 and II, V reverse gear shifting slide gear 31, can realize I, II, three D Drive speed of IV; When the secondary selector gear 16 of manipulation makes the big gear wheel of the dual gear 5 on the clutch housing assembly II axle 3 and is installed in the pinion of the shifting slide gear 14 on hollow shaft component 41 front ends, by the engage position of conversion I, III, IV, VI shelves shifting slide gear 26 and II, V shelves shifting slide gear 31, can realize III, V, three D Drive speed of VI; Reverse gear then is by handling secondary selector gear 16 the large and small gear of the dual gear 5 on the clutch housing assembly II axle 3 and little, the big gear wheel that are installed in the shifting slide gear 14 on hollow shaft component 41 front ends to be meshed successively, reverse driving gear 35 on the while change speed gear box II axle 20 is meshed with II, the V shelves shifting slide gear 31 on the change speed gear box IV axle 25, can realize two reverse speeds.Another road drive path is: the power input driving gear 19 of power on clutch housing assembly I axle 2 and longitudinal drive shaft 13 are connected by spline, pass to longitudinal drive shaft 13, realize the synchronous rotation of longitudinal drive shaft 13 and clutch housing assembly I axle 2, realize that by handling back power take-off mechanism 42 shift sleeves 12 engage with the rear end of longitudinal drive shaft 13.Driving tween drive shaft 10 rotates, be meshed with back takeoff output driven gear 9 on being installed in rear power output shaft 8 by the back takeoff output driving gear 11 on the tween drive shaft 10, can drive by the rear power output shaft 8 of bearing installation on gear box casing 29 and rotate, with the rear end output of power from driving device, can be provided with takeoff output shaft-cup 7 on the rear power output shaft 8, when not needing the back takeoff output, the shaft-cup 7 that outputs power is installed on the rear power output shaft 8, to guarantee safety.
Claims (5)
1.6+2 the associated mode small four-wheel tractor driving device of gear is characterized in that: comprise
The pressure-bearing type change speed gear box, described pressure-bearing type change speed gear box comprises gear box (29) and is arranged at first gear system that interior being used to of described gear box (29) drives the shaft of tractor rotation that described first gear system comprises vertical hollow shaft component (41) and bevel-gear pair and the horizontal tween drive shaft of Duo Gen change speed gear box and many to gear pair that is arranged in the described gear box (29);
Clutch housing assembly, described clutch housing assembly comprise clutch-bell cover (1) and vertically are arranged at interior second gear system that is used for the transmission of power of driving engine is given described pressure-bearing type change speed gear box of described clutch-bell cover (1);
Described gear box (29) is captiveed joint with clutch-bell cover (1);
Back power take-off implement, described back power take-off implement comprises the longitudinal drive shaft (13) that vertically is arranged in described gear box (29) and the clutch-bell cover (1), tween drive spindle (10), rear power output shaft (8), back takeoff output steering unit (42).
2. the associated mode small four-wheel tractor driving device of 6+2 gear as claimed in claim 1 is characterized in that: described first gear system also comprises
Diff (28), described diff (28) is arranged in the described gear box (29), and is positioned at the driven end of first gear system, is used for driving two semiaxis that tractor wheels is rotated with giving through the transmission of power after the speed change.
3. the associated mode small four-wheel tractor driving device of 6+2 gear as claimed in claim 2 is characterized in that: described second gear system comprises
Clutch housing assembly I axle (2), described clutch housing assembly I axle (2) is connected with driving engine by power-transfer clutch, and power input driving gear (19) is installed on the described clutch housing assembly I axle (2);
Shifting slide gear (14), described shifting slide gear (14) is installed in the front end of hollow shaft component (41), controls the slip locations of described shifting slide gear (14) by secondary trasmission shifting system (16), shift fork (17), locking steel ball (15);
Clutch housing assembly II axle (3), an intermediate gear (4) and a duplex gear (5) are installed, described intermediate gear (4) and power input driving gear (19) engagement that is installed on the described clutch housing assembly I axle (2) on the described clutch housing assembly II axle (3); The big gear wheel of described dual gear (5) and the pinion that is installed in the described shifting slide gear (14) of hollow shaft component (41) front end.
4. the associated mode small four-wheel tractor driving device of 6+2 gear as claimed in claim 3 is characterized in that: described back power take-off implement comprises
Vertically be arranged on the longitudinal drive shaft (13) in described gear box (29) and the clutch-bell cover (1), power input driving gear (19) on the front end of described longitudinal drive shaft (13) passes hollow shaft component (41) and is installed in described clutch housing assembly I axle (2) is connected by invoice serration, and the rear end of described longitudinal drive shaft (13) is connected with tween drive spindle (10) by slip engagement cover (12);
Tween drive spindle (10), the front end of described tween drive spindle (10) is equipped with shift sleeve (12), is connected with longitudinal drive shaft (13) rear end by slip engagement cover (12), and the rear end is equipped with back takeoff output driving gear (11);
Rear power output shaft (8), described rear power output shaft (8) is installed in the rear portion of described gear box, the end that described rear power output shaft (8) is positioned at described gear box (29) is equipped with back takeoff output driven gear (9), described back takeoff output driven gear (9) and described back takeoff output driving gear (11) engagement;
Back takeoff output steering unit (42) is used to control described shift sleeve (12) and engages with the rear end of described longitudinal drive shaft (13) or separate.
5. as the associated mode small four-wheel tractor driving device of any described 6+2 gear of claim in the claim 1,2,3 and 4, it is characterized in that: the left side of described change speed gear box is provided with side takeoff output port, described gear box (29) is stretched out in the left side of first bevel gear shaft (37), forms described side takeoff output port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020172460XU CN201736806U (en) | 2010-04-22 | 2010-04-22 | Directly connected-type small wheel tractor transmission with 6+2 gears |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020172460XU CN201736806U (en) | 2010-04-22 | 2010-04-22 | Directly connected-type small wheel tractor transmission with 6+2 gears |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201736806U true CN201736806U (en) | 2011-02-09 |
Family
ID=43552089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020172460XU Expired - Fee Related CN201736806U (en) | 2010-04-22 | 2010-04-22 | Directly connected-type small wheel tractor transmission with 6+2 gears |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201736806U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103192891A (en) * | 2013-03-20 | 2013-07-10 | 江苏九州豹拖拉机制造有限公司 | Narrow hillside tractor |
-
2010
- 2010-04-22 CN CN201020172460XU patent/CN201736806U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103192891A (en) * | 2013-03-20 | 2013-07-10 | 江苏九州豹拖拉机制造有限公司 | Narrow hillside tractor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103832263B (en) | For the power drive system of vehicle and the vehicle with it | |
| CN201739476U (en) | Multifunctional auxiliary transmission | |
| CN203697961U (en) | Differential and speed change integrated two-gear rear drive assembly of electric automobile | |
| CN103332108A (en) | Two-gear power transmission system for BEV integrated planetary gear train | |
| CN110920367A (en) | Coaxial two-gear electric drive axle | |
| CN103754111A (en) | Differential and change speed integrated double-gear rear driving assembly of electric vehicle | |
| CN203661633U (en) | Differential mechanism type track combine-harvester gearbox | |
| CN105128648A (en) | Fixed-shaft type hybrid power transmission for integrated drive motor | |
| CN103291857A (en) | Gearbox of small tractor | |
| CN111332117B (en) | Hybrid power system, synchronous gear shifting mechanism and vehicle | |
| CN201736806U (en) | Directly connected-type small wheel tractor transmission with 6+2 gears | |
| CN201736804U (en) | Driving device of 8 plus 8 shuttle gear-shifting direct-coupled small four-wheel tractor | |
| CN204123949U (en) | Hybrid power transmission system and use the vehicle of this transmission system | |
| CN204004226U (en) | Machinery directly drives hydraulic pressure double controlled endless-track vehicle buncher | |
| CN216545695U (en) | Dual-motor three-speed-ratio compact electric drive axle system | |
| CN102267380B (en) | Doubling transmission device of crawler tractor | |
| CN106740078B (en) | Tractor transmission mechanism | |
| CN202251790U (en) | Transverse multifunctional transmission | |
| CN204340684U (en) | A kind of power drive system of two grades of electronlmobils | |
| CN204664335U (en) | A kind of 12+3 shelves gearbox | |
| CN203957875U (en) | Transfer transmission device | |
| CN102606686A (en) | Transfer case of large tractor | |
| CN201446881U (en) | Transmission device of direct connecting four-wheel tractor | |
| CN207417061U (en) | One kind two keeps off speed change gear | |
| CN202098278U (en) | Multiple transmission device of caterpillar tractor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20110209 Termination date: 20140422 |