CN2726794Y - Bolt automatic screwing up machine - Google Patents
Bolt automatic screwing up machine Download PDFInfo
- Publication number
- CN2726794Y CN2726794Y CN 200420061206 CN200420061206U CN2726794Y CN 2726794 Y CN2726794 Y CN 2726794Y CN 200420061206 CN200420061206 CN 200420061206 CN 200420061206 U CN200420061206 U CN 200420061206U CN 2726794 Y CN2726794 Y CN 2726794Y
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- Prior art keywords
- bolt
- vibration feeder
- cylinder
- arc
- head
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- Expired - Fee Related
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Abstract
The utility model discloses a bolt automatic screwing up machine. The screwing up head is arranged on a pushing power device which is on the workbench, a vibration feeder is arranged on the front part of the workbench, the discharge opening of the vibration feeder is provided with a movable support which can move upwards and downwards, the movable support is connected with a piston rod which is arranged on a lifting cylinder, and the movable support is provided with an arc-shaped groove; the width of the arc-shaped is narrower than the width of the discharge opening of the vibration feeder; the movable support is positioned between the screwing up head and a positioning device used for placing the articles to be processed; the discharge opening of the vibration feeder is provided with a material partition board, the material partition board is connected with the piston rod of the control cylinder. By adopting the utility model, the labor can be saved and the assembly efficiency is improved; moreover, the automation level of the whole assembly process is improved.
Description
Technical field
The utility model relates to a kind of bolt automatic screwing device structure, relates in particular to a kind of automatic screwing device structure of engine cylinder head blast pipe stud.
Background technology
At mechanical field, especially in the assembling process of motorcycle and engine thereof, usually there is the assembly process of bolt.Traditional bolts assemblies adopts pneumtic impact wrench to realize, the operator puts bolt the tappet head of pneumtic impact wrench into, and hand-held again pneumtic impact wrench is holding up bolt to aim at the screwed hole that will assemble, and starts the switch of pneumtic impact wrench at last, treat that bolts assemblies puts in place after, withdraw from pneumtic impact wrench again.Above-mentioned assembly method needs the assembler to participate in the overall process, and labour's input is also bigger, exists automaticity not high, can not satisfy the defective of the needs of modernized large-scale production.
The content of utility model
At the prior art above shortcomings, the purpose of this utility model is to provide a kind of reduction labour intensity, saves the labour and realizes the mechanism that bolt is tightened automatically.
The technical solution of the utility model is achieved in that a kind of bolt automatic screwing device, comprises tappet head, vibration feeder, and tappet head is connected with the output shaft of gearbox, and the output shaft of motor is connected by the power shaft of shaft coupling and gearbox; Motor and gearbox are located on the slide unit, and slide unit is located on the workbench by guide rail; Slide unit one end connects propulsion cylinder; Vibration feeder is located at the anterior side of workbench, and the discharging opening place of vibration feeder is provided with traversing carriage moving up and down, and traversing carriage is connected with the piston rod of the jacking cylinder of vertical setting, traversing carriage be provided with arc-shaped slot; The width of arc-shaped slot is narrow than the vibration feeder exit width; Traversing carriage is at tappet head and be used to place between the positioner of thing to be processed.Positioner is made up of the elastic pressuring clamping device of positioning table and its both sides, and positioner is located on the support.
Further feature is tappet head and supporting with it motor and gearbox, and vibration feeder reaches arc-shaped slot and is two, and tappet head is corresponding with thing to be processed hole site with the position of arc-shaped slot; The relative workbench of vibration feeder is symmetrical arranged.The discharging opening place of described vibration feeder is provided with material baffle, and material baffle is connected with the piston rod of control cylinder.
Be provided with the photoelectric sensor of long head of induction bolt thread and brachycephaly in the feed channel porch of described vibration feeder; Feed channel one side is corresponding with photoelectric sensor, and control error correction cylinder that the bolt of putting to mistake is pushed away away.
Adopt the bolt automatic screwing device of technique scheme, bolt is lined up under the vibration of vibration feeder and is entered arc-shaped slot, by the jacking cylinder bolt on the arc-shaped slot is pushed to the tappet head place again, tighten title and the screwed hole that bolt enters needs assembling, thereby realized tightening automatically of bolt by the rotation of driven by motor tappet head.Adopt the utility model, can reduce labour intensity, save the labour, improve efficiency of assembling, the automatization level of whole assembling process also is greatly improved simultaneously.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is the horizontally disposed structural representation of the utility model.
Fig. 2 is the partial side TV structure figure of Fig. 1.
Fig. 3 is the front elevational schematic of Fig. 1.
Fig. 4 is the I partial enlarged drawing of Fig. 3.
The specific embodiment
Embodiment 1: as shown in Figure 1 and Figure 2, a kind of bolt automatic screwing device, tappet head 8 is connected with the output shaft of gearbox 6, and the output shaft of motor 5 is connected by the power shaft of shaft coupling 7 and gearbox 6; Motor 5 and gearbox 6 are located on the slide unit 4, and slide unit 4 is located on the workbench 1 by guide rail 3; Slide unit 4 one ends connect propulsion cylinder 2; Slide unit 4 can move along guide rail 3 under the effect of propulsion cylinder 2.Vibration feeder 14 is located at workbench 1 front part sides, the discharging opening place of vibration feeder 14 is provided with traversing carriage 24 moving up and down, traversing carriage 24 is connected with the piston rod of the vertical jacking cylinder 11 that is provided with, the both sides on the top of traversing carriage 24 are provided with arc-shaped slot 13, the top dead centre of arc-shaped slot 13 just in time with two tappet heads 8 respectively on same horizontal line; Traversing carriage 24 is at tappet head 8 and be used to place between the positioner of thing to be processed.Positioner is made up of the elastic pressuring clamping device 10 of positioning table 9 and its both sides, and positioner is located on the support 21.When workpiece 22 by elastic pressuring clamping device 10 with it behind fastening location, screwed hole and tappet head 8 that this moment, workpiece 22 needed to twist bolt are on the same straight line.Tappet head 8 is corresponding with thing to be processed hole site with the position of arc-shaped slot 13; Vibration feeder 14 relative workbench 1 are symmetrical arranged.
As shown in Figure 4, the discharging opening place of vibration feeder 14 is provided with material baffle 17, and material baffle 17 is connected with the piston rod of control cylinder 16.The bolt that material baffle 17 can pass the long and narrow slit corresponding with material baffle of feeder waiting area and can block the back effectively can not glide it along feed channel.The separated material cylinder of feed channel porch is used for the bolt barrier that just enters the waiting area, so that photoelectric sensor 19 is if having time to its induction.If do not sense the bare headed part in the middle of the bolt, show that bolt puts to correctly, separated material cylinder 16 is let pass, and bolt enters the waiting area.As shown in Figure 3, be provided with the photoelectric sensor 19 of long head of induction bolt thread and brachycephaly in the feed channel porch of described vibration feeder 14; Feed channel one side is corresponding with photoelectric sensor, and control error correction cylinder 20 that the bolt of putting to mistake is pushed away away.As shown in Figure 3, be provided with a photoelectric sensor 19 in cylinder mounting bracket 23 upper ends, photoelectric sensor 19 is positioned at inlet top, vibration feeder 14 waiting areas.Since stud two head threads sample different in size, and when queuing, have direction to require.If long head of the screw thread of bolt and brachycephaly exchange, the bare headed part relative position in the middle of it is just different, and the effect of photoelectric sensor 19 is exactly whether the induction light head part puts in place.Be provided with the error correction bar by cylinder 20 controls in feed channel one side, the piston rod of cylinder 20 is over against the aperture of feed channel sidewall, and orifice size and error correction cylinder piston rod are adaptive.When photoelectric sensor 19 is sensed the screw thread shaven head part of the bolt that enters the waiting area, show that this bolt thread is grown head and brachycephaly is put to mistake, photoelectric sensor 19 is just given signal of telecommunication of electromagnetic valve switch of error correction cylinder 20, therefore action of error correction cylinder 20, the aperture of waiting area sidewall is released and passed to piston rod, and this aperture is answered the bolt end of 19 inductions over against the photoelectric sensing that is subjected to that just enters feed channel.Therefore, piston rod enters and directly promotes this bolt behind the aperture and go out and drop into the blowing district of vibration feeder 14 from the aperture of another sidewall of feed channel.
Referring to Fig. 1, Fig. 4, the discharging opening 15 of vibration feeder 14 just in time is positioned at the oblique upper of arc-shaped slot 13, when the bolt of letting pass from feed channel just in time drops in the arc-shaped slot 13 when discharging opening 15 falls.Its arc-shaped slot 13 is provided with bolt baffle plate 25 away from an end of tappet head 8, and when tappet head 8 turned bolt one end that falls into arc-shaped slot 13, the other end of bolt was just in time blocked by baffle plate 13, and bolt is unlikely to move in arc-shaped slot 13 in the process of tightening.Simultaneously, the outside of arc-shaped slot 13 is provided with spring stop 26 on the support 24, as annex departing from when preventing that bolt from falling into.And the width of arc-shaped slot 13 is narrow than vibration feeder 14 exit widths, guarantees that the thread head extending area of bolt is docked with tappet head 8.
The effect of vibration feeder is that the bolt of putting into the feeding district is moved and sequence automatically team at vibration processes to the waiting area.It is prior art that the utility model is selected vibration bolt feeder for use, does not do detailed disclosure at this.
This structure of the utility model is particularly useful for the assembling of the bolt of motorcycle engine cylinder head.
Embodiment 2: a kind of bolt automatic screwing device, and on the basis of embodiment 1, tappet head 8 and supporting with it motor 5 and gearbox 6, vibration feeder 14, and arc-shaped slot 13 is single; Referring to single part among Fig. 1, Fig. 2, tappet head 8 is connected with the output shaft of gearbox 6, and the output shaft of motor 5 is connected by the power shaft of shaft coupling 7 and gearbox 6; Motor 5 and gearbox 6 are located on the slide unit 4, and slide unit 4 is located on the workbench 1 by guide rail 3; Slide unit 4 one ends connect propulsion cylinder 2; Slide unit 4 can move along guide rail 3 under the effect of propulsion cylinder 2.
The course of work of the present utility model and principle are summarized as follows: manually bolt is poured in the hopper of vibration feeder, started feed system, bolt enters the induction that photoelectric sensor is accepted in the porch, waiting area successively under the effect of vibration feeder.If entering the bolt of feed channel puts to mistake, photoelectric sensor will be sensed the screw thread shaven head part in bolt stage casing, photoelectric sensor will be given error correction cylinder one signal, the piston of error correction cylinder is released, and piston rod will be put the blowing district that pushes vibration feeder to the bolt of mistake by the aperture of porch, waiting area sidewall.Like this, the bolt that enters feed channel all is that direction is arranged correct.Simultaneously, manually cylinder head is placed on the positioner, and will fix by allocation behind its pilot hole aligning tappet head.Before the assembling, the action of the separated material cylinder at discharging opening place makes return by the material baffle of its control, is therefore let pass by the bolt of barrier.After a bolt was let pass, material baffle stretched out to block the bolt of back under the effect of separated material cylinder at once.Bolt after the clearance glides along discharging opening and falls in the arc-shaped slot.Next, the jacking cylinder piston rod is released, and therefore traversing carriage is raised.When raising the position concordant with tappet head (being top dead centre), the jacking cylinder stops to elect.Then, the propulsion cylinder action, slide unit moves along guide rail toward the bolt holder orientation together at the motor, gearbox and the tappet head that drive under the promotion of piston rod on it, simultaneously electric motor starting, by shaft coupling the output shaft of gearbox is rotated, also rotate with the tappet head of output shaft socket.Tappet head slowly contacts the bolt in the arc-shaped slot and is docking together in the process that moves, because the effect of baffle plate, bolt can not move in the bolt support, and after guaranteeing bolt and tappet head socket are finished, jacking cylinder piston rod band under the traversing carriage and rolled back original position.At last, propulsion cylinder advances before once more, tightens headband and the bolt reach and be docking together with screwed hole on the accessory to be installed, and under the drive of motor, bolt enters screwed hole and is tightened.After bolt was screwed to the position, tappet head was return original position under the propulsion cylinder effect.Manually cylinder head is taken off at last, change the cylinder that needs assembling.
Claims (5)
1, a kind of bolt automatic screwing device, comprise tappet head (8), vibration feeder (14), it is characterized in that: tappet head (8) is located on the power plant on the workbench (1), vibration feeder (14) is located at workbench (1) front portion, the discharging opening place of vibration feeder (14) is provided with traversing carriage moving up and down (24), traversing carriage (24) connects the piston rod of jacking cylinder (11), and traversing carriage (24) is provided with arc-shaped slot (13); Traversing carriage (24) is positioned at tappet head (8) and is used to place between the positioner of thing to be processed; The discharging opening place of vibration feeder (14) is provided with material baffle (17), and material baffle (17) is connected with the piston rod of control cylinder (16).
2, bolt automatic screwing device according to claim 1, it is characterized in that: described power plant is made up of propulsion cylinder (2), guide rail (3), slide unit (4), motor (5), gearbox (6) and shaft coupling (7), the output shaft of motor (5) is connected by the power shaft of shaft coupling (7) and gearbox (6), and the output shaft of gearbox (6) is connected with tappet head (8); Motor (5) and gearbox (6) are located on the slide unit (4), and slide unit (4) is located on the workbench (1) by guide rail (3); Slide unit (4) one ends connect propulsion cylinder (2).
3, bolt automatic screwing device according to claim 1 and 2 is characterized in that: described positioner is made up of the elastic pressuring clamping device (10) of positioning table (9) and its both sides, and positioner is located on the support (21).
4, bolt automatic screwing device according to claim 3, it is characterized in that: tappet head (8) and supporting with it motor (5) and gearbox (6), vibration feeder (14), reach arc-shaped slot (13) and be two, tappet head (8) is corresponding with thing to be processed hole site with the position of arc-shaped slot (13).
5, bolt automatic screwing device according to claim 4 is characterized in that: the photoelectric sensor (19) that is provided with long head of induction bolt thread and brachycephaly in the feed channel porch of described vibration feeder (14); Feed channel one side is corresponding with photoelectric sensor, and control error correction cylinder (20) that the bolt of putting to mistake is pushed away away.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420061206 CN2726794Y (en) | 2004-09-09 | 2004-09-09 | Bolt automatic screwing up machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420061206 CN2726794Y (en) | 2004-09-09 | 2004-09-09 | Bolt automatic screwing up machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2726794Y true CN2726794Y (en) | 2005-09-21 |
Family
ID=35042817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420061206 Expired - Fee Related CN2726794Y (en) | 2004-09-09 | 2004-09-09 | Bolt automatic screwing up machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2726794Y (en) |
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101474746B (en) * | 2009-01-12 | 2010-06-09 | 中国计量学院 | Device for automatically screwing thermostatic expansion valve |
| CN101982293A (en) * | 2010-10-21 | 2011-03-02 | 富美科技有限公司 | Automatic removing equipment for screws on Se drum end cover |
| CN101695813B (en) * | 2009-10-20 | 2011-04-27 | 广东亚当斯金属制造有限公司 | Fully-automatic base binding machine |
| CN102179789A (en) * | 2011-04-27 | 2011-09-14 | 杨文虎 | Jack hammer device |
| CN102284857A (en) * | 2011-07-06 | 2011-12-21 | 江苏省苏中建设集团股份有限公司 | Equipment for unscrewing terminal bolt of circuit breaker |
| CN102357708A (en) * | 2011-09-29 | 2012-02-22 | 成都佳士科技有限公司 | Automatic conduit welding machine |
| WO2012037854A1 (en) * | 2010-09-20 | 2012-03-29 | Wen Shaosong | Fully automatic apparatus for assembling screws |
| CN102398248A (en) * | 2011-12-05 | 2012-04-04 | 富美科技有限公司 | Adjustable equipment for locking screws of cartridge |
| CN102416563A (en) * | 2011-12-16 | 2012-04-18 | 大连智云自动化装备股份有限公司 | Automatic camshaft shifting device for tightening wrench |
| CN101959638B (en) * | 2008-03-13 | 2012-09-05 | 本田技研工业株式会社 | Bolt tightening method, bolt tightening device, bolt supplying method, and bolt supplying device |
| CN103028936A (en) * | 2012-12-19 | 2013-04-10 | 葛双好 | Double-nut tightening device with automatic counting function |
| CN103111837A (en) * | 2013-01-23 | 2013-05-22 | 北京理工大学 | Vapor generator primary side baffle operation robot |
| CN103143925A (en) * | 2013-03-28 | 2013-06-12 | 重庆大学 | Barrel tightening machine |
| CN103213082A (en) * | 2013-04-26 | 2013-07-24 | 南通市华冠电器有限公司 | Screw positioning device |
| CN104167887A (en) * | 2014-07-28 | 2014-11-26 | 芜湖莫森泰克汽车科技有限公司 | Wrong stitching prevention bolt apparatus of motor support wire wheel cover |
| CN104668928A (en) * | 2015-01-29 | 2015-06-03 | 杭州沃镭智能科技股份有限公司 | Assembly line for brake master cylinders of vacuum boosters |
| CN104723079A (en) * | 2015-03-27 | 2015-06-24 | 苏州市吴中区木渎华利模具加工店 | Nut lower clamping mechanism of aluminum alloy joint connector assembling machine |
| CN105033624A (en) * | 2015-07-02 | 2015-11-11 | 上海新光汽车电器有限公司 | Automatic nut assembling machine |
| CN105058036A (en) * | 2015-08-01 | 2015-11-18 | 深圳市美思美科智能科技有限公司 | Automatic screw tightening machine |
| CN105328442A (en) * | 2014-08-04 | 2016-02-17 | 发那科株式会社 | Screw tightening apparatus |
| CN106112494A (en) * | 2016-06-27 | 2016-11-16 | 浙江新昌皮尔轴承有限公司 | Eccentric bushing twists screw equipment |
| CN106736476A (en) * | 2016-12-27 | 2017-05-31 | 武汉瑞松北斗汽车装备有限公司 | A kind of automobile automatic assembly line additional screws installing mechanism |
| CN107838590A (en) * | 2017-11-21 | 2018-03-27 | 苏州索力旺新能源科技有限公司 | A kind of feeding device of photovoltaic junction box pressure line terminal |
-
2004
- 2004-09-09 CN CN 200420061206 patent/CN2726794Y/en not_active Expired - Fee Related
Cited By (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101959638B (en) * | 2008-03-13 | 2012-09-05 | 本田技研工业株式会社 | Bolt tightening method, bolt tightening device, bolt supplying method, and bolt supplying device |
| CN101474746B (en) * | 2009-01-12 | 2010-06-09 | 中国计量学院 | Device for automatically screwing thermostatic expansion valve |
| CN101695813B (en) * | 2009-10-20 | 2011-04-27 | 广东亚当斯金属制造有限公司 | Fully-automatic base binding machine |
| WO2012037854A1 (en) * | 2010-09-20 | 2012-03-29 | Wen Shaosong | Fully automatic apparatus for assembling screws |
| CN101982293A (en) * | 2010-10-21 | 2011-03-02 | 富美科技有限公司 | Automatic removing equipment for screws on Se drum end cover |
| CN102179789B (en) * | 2011-04-27 | 2012-09-19 | 杨文虎 | Jack hammer device |
| CN102179789A (en) * | 2011-04-27 | 2011-09-14 | 杨文虎 | Jack hammer device |
| CN102284857A (en) * | 2011-07-06 | 2011-12-21 | 江苏省苏中建设集团股份有限公司 | Equipment for unscrewing terminal bolt of circuit breaker |
| CN102357708A (en) * | 2011-09-29 | 2012-02-22 | 成都佳士科技有限公司 | Automatic conduit welding machine |
| CN102398248A (en) * | 2011-12-05 | 2012-04-04 | 富美科技有限公司 | Adjustable equipment for locking screws of cartridge |
| CN102416563A (en) * | 2011-12-16 | 2012-04-18 | 大连智云自动化装备股份有限公司 | Automatic camshaft shifting device for tightening wrench |
| CN102416563B (en) * | 2011-12-16 | 2014-03-05 | 大连智云自动化装备股份有限公司 | Automatic camshaft shifting device for tightening wrench |
| CN103028936A (en) * | 2012-12-19 | 2013-04-10 | 葛双好 | Double-nut tightening device with automatic counting function |
| CN103111837A (en) * | 2013-01-23 | 2013-05-22 | 北京理工大学 | Vapor generator primary side baffle operation robot |
| CN103111837B (en) * | 2013-01-23 | 2015-06-03 | 北京理工大学 | Vapor generator primary side baffle operation robot |
| CN103143925A (en) * | 2013-03-28 | 2013-06-12 | 重庆大学 | Barrel tightening machine |
| CN103143925B (en) * | 2013-03-28 | 2015-06-17 | 重庆大学 | Barrel tightening machine |
| CN103213082A (en) * | 2013-04-26 | 2013-07-24 | 南通市华冠电器有限公司 | Screw positioning device |
| CN104167887A (en) * | 2014-07-28 | 2014-11-26 | 芜湖莫森泰克汽车科技有限公司 | Wrong stitching prevention bolt apparatus of motor support wire wheel cover |
| CN104167887B (en) * | 2014-07-28 | 2017-01-25 | 芜湖莫森泰克汽车科技股份有限公司 | Wrong stitching prevention bolt apparatus of motor support wire wheel cover |
| CN105328442A (en) * | 2014-08-04 | 2016-02-17 | 发那科株式会社 | Screw tightening apparatus |
| CN104668928B (en) * | 2015-01-29 | 2016-09-28 | 杭州沃镭智能科技股份有限公司 | A kind of master cylinder assembly line of vacuum booster |
| CN104668928A (en) * | 2015-01-29 | 2015-06-03 | 杭州沃镭智能科技股份有限公司 | Assembly line for brake master cylinders of vacuum boosters |
| CN104723079A (en) * | 2015-03-27 | 2015-06-24 | 苏州市吴中区木渎华利模具加工店 | Nut lower clamping mechanism of aluminum alloy joint connector assembling machine |
| CN105033624A (en) * | 2015-07-02 | 2015-11-11 | 上海新光汽车电器有限公司 | Automatic nut assembling machine |
| CN105058036A (en) * | 2015-08-01 | 2015-11-18 | 深圳市美思美科智能科技有限公司 | Automatic screw tightening machine |
| CN106112494A (en) * | 2016-06-27 | 2016-11-16 | 浙江新昌皮尔轴承有限公司 | Eccentric bushing twists screw equipment |
| CN106112494B (en) * | 2016-06-27 | 2018-06-15 | 浙江新昌皮尔轴承有限公司 | Eccentric bushing twists screw equipment |
| CN106736476A (en) * | 2016-12-27 | 2017-05-31 | 武汉瑞松北斗汽车装备有限公司 | A kind of automobile automatic assembly line additional screws installing mechanism |
| CN107838590A (en) * | 2017-11-21 | 2018-03-27 | 苏州索力旺新能源科技有限公司 | A kind of feeding device of photovoltaic junction box pressure line terminal |
| CN107838590B (en) * | 2017-11-21 | 2024-01-12 | 苏州索力旺新能源科技有限公司 | Material taking device for line pressing terminal for photovoltaic junction box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHONGQING ZONGSHEN ENGINE MANUFACTURING CO. Free format text: FORMER OWNER: CHONGQING ZONGSHEN TECHNOLOGY DEVELOPMENT + RESEARCH CO., LTD. Effective date: 20071221 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20071221 Address after: Shen Shen industrial park, Banan District, Chongqing, China: 400054 Patentee after: Chongqing Zongshen Engine Manufacturing Co., Ltd. Address before: No. 25 Erlang Road, Chongqing hi tech Development Zone, Shiqiaopu, 400039 Patentee before: Chongqing Zongshen Technology Development & Research Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050921 Termination date: 20120909 |