CN203840744U - Vegetable seedling taking mechanism of elliptic-partial noncircular and circular gear planetary system - Google Patents
Vegetable seedling taking mechanism of elliptic-partial noncircular and circular gear planetary system Download PDFInfo
- Publication number
- CN203840744U CN203840744U CN201420126158.9U CN201420126158U CN203840744U CN 203840744 U CN203840744 U CN 203840744U CN 201420126158 U CN201420126158 U CN 201420126158U CN 203840744 U CN203840744 U CN 203840744U
- Authority
- CN
- China
- Prior art keywords
- gear
- knucle
- elliptic
- planet
- incomplete
- 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.)
- Withdrawn - After Issue
Links
Abstract
The utility model discloses a vegetable seedling taking mechanism of an elliptic-partial noncircular and circular gear planetary system. The traditional seedling taking mechanism is capable of realizing the wide-range change of the transmission ratio of a seedling taking track by using a locking arc, and is high in transmission impact. A central shaft of the vegetable seedling taking mechanism is fixed together with a planetary carrier, a central partial non-circular gear is fixed together with a rack, a central partial circular gear is fixed together with the central partial non-circular gear, and the central partial circular gear and the central partial non-circular gear are both emptily sleeved on the central shaft; a first intermediate elliptic gear is connected with a first intermediate shaft through a spline, and a first intermediate partial circular gear is fixed together with the first intermediate elliptic gear; a second intermediate elliptic gear is connected with a second intermediate shaft through a spline, and a second intermediate partial circular gear is fixed together with the second intermediate elliptic gear; a first planetary elliptic gear is connected with a first planetary shaft through a spline, and a second planetary elliptic gear is connected with a second planetary shaft through a spline; one end of the first planetary shaft and one end of the second planetary shaft are both fixed together with a shell of a seedling taking claw after extending out of the planetary carrier. The vegetable seedling taking mechanism is stable in transmission and low in impact.
Description
Technical field
The utility model belongs to agricultural mechanical field, relates to a kind of vegetables seedling picking mechanism, is specifically related to a kind of ellipse-incomplete non-circle and Knucle-gear planetary system vegetables seedling picking mechanism.
Background technology
Transplanting has the comprehensive benefit that makes the compensating action of crop growth ahead of time with to weather, can make full use of photo-thermal resource, and its economic and social profit is all considerable.The potted-seedling transplanting operation in paddy field, nonirrigated farmland need to be developed transplanting seedling picking mechanism.
Transmission Mechanism of Planetary Gear System is existing application in the seedling picking mechanism of transplanting machine, get seedling-the push away course of work of seedling-backhaul in order to complete, transplant arm cusp and will complete needed movement locus, in existing planet circular system seedling picking mechanism, all adopt locking arc mechanism to get the needed gearratio of seedling track and change to reach on a large scale, the gearratio of locking arc transmission is equivalent to infinity, so in the transmission of locking arc and gear-driven transition stage, due to the huge sudden change of gearratio, the transmission of mechanism has very large impact, very unstable, be unfavorable for improving the seedling speed of getting.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, and a kind of ellipse-incomplete non-circle and Knucle-gear planetary system vegetables seedling picking mechanism are provided, and this mechanism can meet the required special track requirement of pot seedling transplanter, and stable drive, impact little.
The utility model comprises central shaft, planet carrier, the incomplete non-circular gear in center, the incomplete Knucle-gear in center, the first jackshaft, the second jackshaft, the first middle elliptic gear, the first middle not exclusively Knucle-gear, the second middle elliptic gear, the second middle incomplete Knucle-gear, the first planet axis, the second planet axis, the first planet elliptic gear, the second planet elliptic gear and seedling claw.One end of described central shaft is connected with power set, and the other end and planet carrier are fixed; The incomplete non-circular gear in described center and frame are fixed, and the incomplete non-circular gear of the incomplete Knucle-gear in center and center is fixed, and the gear teeth of the incomplete non-circular gear of the gear teeth of the incomplete Knucle-gear in center and center are arranged on not homonymy; The equal empty set of the incomplete Knucle-gear of the incomplete non-circular gear in described center and center is on central shaft; Described the first jackshaft and the second jackshaft are symmetricly set on central shaft both sides, and are all connected by bearing with planet carrier; In the middle of described first, elliptic gear is with the first jackshaft by spline joint, and not exclusively Knucle-gear empty set, on the first jackshaft, and is fixed with the first middle elliptic gear in the middle of first; In the middle of described second, elliptic gear is with the second jackshaft by spline joint, and not exclusively Knucle-gear empty set, on the second jackshaft, and is fixed with the second middle elliptic gear in the middle of second; Described the first planet axis and the second planet axis are symmetricly set on planet carrier two ends, and are all connected by bearing with planet carrier; The first described planet elliptic gear and the first planet axis are by spline joint, and the second planet elliptic gear and the second planet axis are passed through spline joint; One end of the first planet axis and the second planet axis is all stretched out planet carrier housing outer and a seedling claw and is fixed.In the middle of described first, the both sides of elliptic gear are connected by gear pair with the incomplete non-circular gear in center and the first planet elliptic gear respectively; In the middle of second, the both sides of elliptic gear are connected by gear pair with the incomplete non-circular gear in center and the second planet elliptic gear respectively; The incomplete Knucle-gear in described center is connected by gear pair with incomplete Knucle-gear in the middle of incomplete Knucle-gear or second in the middle of first.
In the middle of described the first middle elliptic gear, second, the pitch curve parameter of elliptic gear, the first planet elliptic gear and the second planet elliptic gear is identical; The first described middle not exclusively Knucle-gear is with in the middle of second, not exclusively the pitch curve parameter of Knucle-gear is identical.
Described planet carrier rotates, and the seedling needle point point of seedling claw forms gets seedling track; The described head of getting seedling track is provided with latch closure, and cusp is to pot seedling disk top for getting seedling section from the head, and the linearity of getting seedling section is 1mm/20mm～1mm/10mm.
The beneficial effects of the utility model:
1, variable speed transmission of the present utility model, makes the seedling needle point point formation of seedling claw get seedling track, meets the agriculture requirement of potted-seedling transplanting;
2, the utility model adopts incomplete knuckle-tooth wheel set to replace the locking arc mechanism in existing mechanism, not only in rotating small angle range, realizes planet carrier the incomplete Knucle-gear in center and the middle not exclusively whole gearratio change procedure of Knucle-gear, realized in the whole cycle of planet carrier rotation simultaneously, the mild variation of planetary system first order gear pair gearratio, make the incomplete Knucle-gear in center with the incomplete Knucle-gear in centre from starting to be engaged to the whole process separating, less sudden change on middle elliptic gear and planet elliptic gear rotating speed, weaken in existing mechanism transmission unstable, impact large shortcoming,
3, the utility model is simple in structure, volume is little, lightweight, vibrate little, low cost of manufacture;
4, the utility model adopts the arrangement of two seedling claws, and planet carrier rotates once, gets seedling operation twice, and operating efficiency is high, can adapt to paddy field and the nonirrigated farmland of transplanter under any rotating speed and transplant operation.
Brief description of the drawings
Fig. 1 is overall structure cutaway view of the present utility model;
Fig. 2 is operation principle schematic diagram of the present utility model;
Fig. 3 is the structural representation of planetary system in the utility model;
Fig. 4-1 is the interior cutaway view of seedling claw in the utility model;
Fig. 4-2 are the overall structure schematic diagram of seedling claw in the utility model;
Fig. 5-1 is that in the utility model, planet carrier corner is the transmission ratio curve figure that the incomplete non-circular gear in 0～280°Shi center engages with elliptic gear in the middle of first;
Fig. 5-2 are that in the utility model, planet carrier corner is the transmission ratio curve figure that in the middle of the incomplete Knucle-gear in 280 °～360°Shi center and first, not exclusively Knucle-gear engages.
In figure: 1, central shaft, 2, planet carrier, 3, the incomplete non-circular gear in center, 4, the incomplete Knucle-gear in center, 5, the first jackshaft, 6, the second jackshaft, 7, elliptic gear in the middle of first, 8, incomplete Knucle-gear in the middle of first, 9, elliptic gear in the middle of second, 10, incomplete Knucle-gear in the middle of second, 11, the first planet axis, 12, the second planet axis, 13, the first planet elliptic gear, 14, the second planet elliptic gear, 15, seedling claw, 15-1, push away seedling cam, 15-2, push away seedling shift fork, 15-3, seedling-pushing rod, 15-4, seedling pin, 15-5, spring, 15-6, push away seedling pawl, 16, get seedling track, 17, pot seedling.
Embodiment
As shown in Figure 1,2 and 3, ellipse-incomplete non-circle and Knucle-gear planetary system vegetables seedling picking mechanism comprise central shaft 1, planet carrier 2, the incomplete non-circular gear 3 in center, the incomplete Knucle-gear 4 in center, the first jackshaft 5, the second jackshaft 6, the first middle elliptic gear 7, the first middle not exclusively Knucle-gear 8, the second middle elliptic gear 9, the second middle incomplete Knucle-gear 10, the first planet axis 11, the second planet axis 12, the first planet elliptic gear 13, the second planet elliptic gear 14 and seedling claw 15.One end of central shaft 1 is connected with power set, and the other end and planet carrier 2 are fixing; The incomplete non-circular gear 3 in center is fixed with frame, and the incomplete Knucle-gear 4 in center is fixing with the incomplete non-circular gear 3 in center, and the gear teeth of the incomplete non-circular gear of the gear teeth of the incomplete Knucle-gear in center and center are arranged on not homonymy; The incomplete non-circular gear 3 in center and the center equal empty set of incomplete Knucle-gear 4 is on central shaft; The first jackshaft 5 and the second jackshaft 6 are symmetricly set on central shaft both sides, and are all connected by bearing with planet carrier 2; In the middle of first elliptic gear 7 with the first jackshaft 5 by spline joint, in the middle of first not exclusively Knucle-gear 8 empty sets on the first jackshaft, and with first in the middle of elliptic gear 7 fix; In the middle of second elliptic gear 9 with the second jackshaft 6 by spline joint, in the middle of second not exclusively Knucle-gear 10 empty sets on the second jackshaft, and with second in the middle of elliptic gear 9 fix; The first planet axis 11 and the second planet axis 12 are symmetricly set on planet carrier 2 two ends, and are all connected by bearing with planet carrier; The first planet elliptic gear 13 and the first planet axis 11 are by spline joint, and the second planet elliptic gear 14 and the second planet axis 12 are passed through spline joint; One end of the first planet axis 11 and the second planet axis 12 is all stretched out planet carrier 2 housing outer and a seedling claw 15 and is fixed.In the middle of first, the both sides of elliptic gear 7 are connected by gear pair with the incomplete non-circular gear 3 in center and the first planet elliptic gear 13 respectively; In the middle of second, the both sides of elliptic gear 9 are connected by gear pair with the incomplete non-circular gear 3 in center and the second planet elliptic gear 14 respectively; In the time that the incomplete non-circular gear 3 in center starts to engage with elliptic gear 7 in the middle of first, the incomplete Knucle-gear 4 in center separates with incomplete Knucle-gear 8 in the middle of first, engages with incomplete Knucle-gear 10 in the middle of second; In the time that the incomplete non-circular gear 3 in center starts to engage with elliptic gear 9 in the middle of second, the incomplete Knucle-gear 4 in center separates with incomplete Knucle-gear 10 in the middle of second, engages with incomplete Knucle-gear 8 in the middle of first, ensures the continuity of transmission.
In the middle of first, the pitch curve parameter of elliptic gear 7, the second middle elliptic gear 9, the first planet elliptic gear 13 and the second planet elliptic gear 14 is identical; In the middle of first, not exclusively Knucle-gear 8 is identical with the pitch curve parameter of incomplete Knucle-gear 10 in the middle of second.
As shown in Figure 2, planet carrier 2 rotates counterclockwise, and by the variable speed transmission of ellipse-incomplete non-circle and Knucle-gear planetary system, the seedling needle point point of seedling claw 15 forms gets seedling track 16; The head of getting seedling track is provided with latch closure, and cusp is to pot seedling disk top for getting seedling section 16-1 from the head, and the linearity of getting seedling section is 1mm/20mm, ensures that seedling claw vertically leaves pot seedling disk, damages pot seedling 17 while avoiding getting seedling.
As shown in Fig. 4-1 and 4-2, seedling claw 15 adopts ripe prior art, the patent that for example application number is 201210293743.3.
As shown in Fig. 5-1, in the one-period that planet carrier 2 rotates, when planet carrier corner is 0～280 °, the incomplete non-circular gear 3 in center engages with elliptic gear 7 in the middle of first, its gearratio
with planet carrier corner
smooth variation; As shown in Fig. 5-2, when planet carrier corner is 280 °～360 °, the incomplete Knucle-gear 4 in center engages with incomplete Knucle-gear 8 in the middle of first, its gearratio
with planet carrier corner
occur keeping steady state value after sudden change, and the relative gearratio of steady state value
excursion do not occur sharply changing.Visible, the incomplete Knucle-gear 4 in center engages and causes that the sudden change of planetary system first order gear pair gearratio is little with incomplete Knucle-gear 8 in the middle of first, and has realized gearratio in planet carrier rotates small angle range
whole change procedure, realized in the whole cycle that planet carrier rotates simultaneously, planetary system first order gear pair gearratio comparatively mild variation, compared with prior art, stable drive, impulsive force is little.Occur that the gearratio variation tendency shown in Fig. 5-1 and 5-2 is while being 280 ° due to planet carrier corner, center partial gear 3 separates with elliptic gear 7 in the middle of first, and the incomplete Knucle-gear 4 in center starts to engage with incomplete Knucle-gear 8 in the middle of first simultaneously; When planet carrier corner is 360 °, the incomplete Knucle-gear 4 in center separates with incomplete Knucle-gear 8 in the middle of first, and in the middle of center partial gear 3 and first, elliptic gear 7 starts engagement simultaneously.
The operation principle of this ellipse-incomplete non-circle and Knucle-gear planetary system vegetables seedling picking mechanism:
Power is passed to planet carrier 2 through central shaft 1, drives planet carrier 2 to rotate; Incomplete non-circular gear 3 empty sets in center are fixed on central shaft 1 and with frame, and planet carrier 2 drives the first middle elliptic gear 7, the second middle elliptic gear 9, the first planet elliptic gear 13 and the second planet elliptic gear 14 to revolve round the sun; In the middle of first, engage with the incomplete non-circular gear 3 in center and the first planet elliptic gear 13 respectively the both sides of elliptic gear 7, in the middle of second, engage with the incomplete non-circular gear 3 in center and the second planet elliptic gear 14 respectively the both sides of elliptic gear 9, has realized the variable speed transmission of seedling claw 15; In the time that the incomplete non-circular gear 3 in center starts to engage with elliptic gear 7 in the middle of first, the incomplete Knucle-gear 4 in center separates with incomplete Knucle-gear 8 in the middle of first, engages with incomplete Knucle-gear 10 in the middle of second; In the time that the incomplete non-circular gear 3 in center starts to engage with elliptic gear 9 in the middle of second, the incomplete Knucle-gear 4 in center separates with incomplete Knucle-gear 10 in the middle of second, engages with incomplete Knucle-gear 8 in the middle of first, ensures the continuity of transmission.
When planet carrier 2 turns to while pushing away seedling position, push away seedling cam 15-1 and push away seedling shift fork 15-2 rotation, push away seedling shift fork 15-2 and drive the head movement of seedling-pushing rod 15-3 to seedling claw 15, the seedling pawl 15-6 that pushes away of seedling-pushing rod head completes and pushes away seedling action, seedling pin 15-4 opens under the effect of seedling-pushing rod, and pot seedling 17 comes off; When planet carrier 2 turns to while getting seedling position, push away seedling shift fork 15-2 in pushing away the closely section of stopping of seedling cam 15-1, seedling-pushing rod 15-3 and push away seedling shift fork 15-2 get back to initial position under the effect of spring 15-5, seedling pin 15-4 steps up the pot seedling 17 in pot seedling disk under the effect that pushes away seedling pawl 15-6, completes and gets that seedling moves and prepare for push away seedling next time.
Claims (3)
1. ellipse-incomplete non-circle and Knucle-gear planetary system vegetables seedling picking mechanism, is characterized in that: comprise central shaft, planet carrier, the incomplete non-circular gear in center, the incomplete Knucle-gear in center, the first jackshaft, the second jackshaft, the first middle elliptic gear, the first middle not exclusively Knucle-gear, the second middle elliptic gear, the second middle incomplete Knucle-gear, the first planet axis, the second planet axis, the first planet elliptic gear, the second planet elliptic gear and seedling claw;
One end of described central shaft is connected with power set, and the other end and planet carrier are fixed; The incomplete non-circular gear in described center and frame are fixed, and the incomplete non-circular gear of the incomplete Knucle-gear in center and center is fixed, and the gear teeth of the incomplete non-circular gear of the gear teeth of the incomplete Knucle-gear in center and center are arranged on not homonymy; The equal empty set of the incomplete Knucle-gear of the incomplete non-circular gear in described center and center is on central shaft; Described the first jackshaft and the second jackshaft are symmetricly set on central shaft both sides, and are all connected by bearing with planet carrier; In the middle of described first, elliptic gear is with the first jackshaft by spline joint, and not exclusively Knucle-gear empty set, on the first jackshaft, and is fixed with the first middle elliptic gear in the middle of first; In the middle of described second, elliptic gear is with the second jackshaft by spline joint, and not exclusively Knucle-gear empty set, on the second jackshaft, and is fixed with the second middle elliptic gear in the middle of second; Described the first planet axis and the second planet axis are symmetricly set on planet carrier two ends, and are all connected by bearing with planet carrier; The first described planet elliptic gear and the first planet axis are by spline joint, and the second planet elliptic gear and the second planet axis are passed through spline joint; One end of the first planet axis and the second planet axis is all stretched out planet carrier housing outer and a seedling claw and is fixed; In the middle of described first, the both sides of elliptic gear are connected by gear pair with the incomplete non-circular gear in center and the first planet elliptic gear respectively; In the middle of second, the both sides of elliptic gear are connected by gear pair with the incomplete non-circular gear in center and the second planet elliptic gear respectively; The incomplete Knucle-gear in described center is connected by gear pair with incomplete Knucle-gear in the middle of incomplete Knucle-gear or second in the middle of first.
2. ellipse according to claim 1-incomplete non-circle and Knucle-gear planetary system vegetables seedling picking mechanism, is characterized in that: in the middle of described the first middle elliptic gear, second, the pitch curve parameter of elliptic gear, the first planet elliptic gear and the second planet elliptic gear is identical; The first described middle not exclusively Knucle-gear is with in the middle of second, not exclusively the pitch curve parameter of Knucle-gear is identical.
3. ellipse according to claim 1-incomplete non-circle and Knucle-gear planetary system vegetables seedling picking mechanism, is characterized in that: described planet carrier rotates, and the seedling needle point point of seedling claw forms gets seedling track; The described head of getting seedling track is provided with latch closure, and cusp is to pot seedling disk top for getting seedling section from the head, and the linearity of getting seedling section is 1mm/20mm～1mm/10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420126158.9U CN203840744U (en) | 2014-03-19 | 2014-03-19 | Vegetable seedling taking mechanism of elliptic-partial noncircular and circular gear planetary system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420126158.9U CN203840744U (en) | 2014-03-19 | 2014-03-19 | Vegetable seedling taking mechanism of elliptic-partial noncircular and circular gear planetary system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203840744U true CN203840744U (en) | 2014-09-24 |
Family
ID=51553828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420126158.9U Withdrawn - After Issue CN203840744U (en) | 2014-03-19 | 2014-03-19 | Vegetable seedling taking mechanism of elliptic-partial noncircular and circular gear planetary system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203840744U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103959966A (en) * | 2014-03-19 | 2014-08-06 | 浙江理工大学 | Vegetable seedling taking mechanism adopting planetary systems comprising elliptical, incomplete non-circular and circular gears |
| CN104855023A (en) * | 2015-05-20 | 2015-08-26 | 浙江理工大学 | Sinusoidal motion swing type wide-narrow row spacing transplanting mechanism for pot seedlings |
-
2014
- 2014-03-19 CN CN201420126158.9U patent/CN203840744U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103959966A (en) * | 2014-03-19 | 2014-08-06 | 浙江理工大学 | Vegetable seedling taking mechanism adopting planetary systems comprising elliptical, incomplete non-circular and circular gears |
| CN104855023A (en) * | 2015-05-20 | 2015-08-26 | 浙江理工大学 | Sinusoidal motion swing type wide-narrow row spacing transplanting mechanism for pot seedlings |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102792814B (en) | High-speed pot seedling transplanting mechanism with free second-order non-circular gear and planet system | |
| CN103959966B (en) | A kind of oval not exclusively not rounded and Knucle-gear planetary system vegetable seedling picking mechanism | |
| CN204721844U (en) | A kind of non-circular gear double-planet train pot seedling transplanter structure | |
| CN203840743U (en) | Vegetable seedling taking mechanism of rack-partial noncircular-elliptic gear planetary system | |
| CN203968644U (en) | A kind of pendulum guide rod seedling-transplanting device | |
| CN203840744U (en) | Vegetable seedling taking mechanism of elliptic-partial noncircular and circular gear planetary system | |
| CN103621227B (en) | Free second-order non-circular gear-deformation ellipse gear pot seedling transplantation and clamping type taking mechanism | |
| CN201830651U (en) | Rotary transplanting device of pot seedling transplanter | |
| CN103947345B (en) | A kind of tooth bar-not exclusively not rounded-Planetary elliptic gears vegetables seedling picking mechanism | |
| CN204498666U (en) | Not rounded-elliptic gear the seedling picking mechanism of seedling track got by " fish dive " type that can realize | |
| CN105638055B (en) | The incomplete off-centre operation of combined type-non-circular gear planetary gear system vegetables seedling picking mechanism | |
| CN105746059B (en) | The incomplete off-centre operation noncircular planetary gear system vegetables seedling picking mechanism of concave tooth | |
| CN104255146B (en) | A kind of noncircular planetary gear is three-jaw rice seedling transplanter structure | |
| CN204443059U (en) | Incomplete off-centre operation-noncircular planetary gear system rice seedling transplanter structure | |
| CN102106212B (en) | Circle-ellipse pitch curve gear planetary system transmission case of transplanting mechanism | |
| CN202857289U (en) | High-speed pot seedling transplanting mechanism of free second-order noncircular gear planetary system | |
| CN203597061U (en) | High-order mixed Fourier non-circular gear pot seedling transplantation seedling-clamp type seedling fetching mechanism | |
| CN203597060U (en) | Free second-order non-circular-Fourier pot seedling transplantation seedling clamp type seedling fetching mechanism | |
| CN203597063U (en) | Free second-order non-circular gear-deformation elliptical gear pot seedling clamp type seedling fetching mechanism | |
| CN203597064U (en) | Second-order Fourier pitch curve non-circular gear pot seedling transplantation seedling-clamp type seedling fetching mechanism | |
| CN207340496U (en) | A kind of new duck-beak type transplanting mechanism | |
| CN107615960B (en) | Duckbill transplanting mechanism | |
| CN205454557U (en) | Seedling mechanism is got to concave tooth - incomplete eccentric circle - non -circular gear planetary system vegetables | |
| CN101824696B (en) | Rapier loom noncircular gear planetary gear train weft insertion mechanism | |
| CN204669867U (en) | A kind of transplanting mechanism of rice transplanter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140924 Effective date of abandoning: 20160615 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140924 Effective date of abandoning: 20160615 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |