CN2700305Y - Scissor fork type hand-operated hydraulic lift - Google Patents
Scissor fork type hand-operated hydraulic lift Download PDFInfo
- Publication number
- CN2700305Y CN2700305Y CN 200420033555 CN200420033555U CN2700305Y CN 2700305 Y CN2700305 Y CN 2700305Y CN 200420033555 CN200420033555 CN 200420033555 CN 200420033555 U CN200420033555 U CN 200420033555U CN 2700305 Y CN2700305 Y CN 2700305Y
- Authority
- CN
- China
- Prior art keywords
- crotch
- underframe
- hydro
- utility
- cylinder
- 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
- 235000004443 Ricinus communis Nutrition 0.000 claims description 10
- 230000007704 transition Effects 0.000 claims description 9
- 230000007246 mechanism Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 2
- 230000003028 elevating effect Effects 0.000 abstract description 2
- 238000013016 damping Methods 0.000 abstract 1
- 230000006837 decompression Effects 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
- 230000032258 transport Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 29
- 239000002828 fuel tank Substances 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- 239000010720 hydraulic oil Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000007665 sagging Methods 0.000 description 2
- 101100272852 Clostridium botulinum (strain Langeland / NCTC 10281 / Type F) F gene Proteins 0.000 description 1
- 240000000528 Ricinus communis Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920000136 polysorbate Polymers 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Landscapes
- Forklifts And Lifting Vehicles (AREA)
Abstract
The utility model provides a cut hand hydraulic lift of fork for loading and unloading when product container transports, this lift adopt scissors lever mechanical structure, and work platform relies on articulating in four cylinder drive of scissors fork, and the both ends of four hydro-cylinders articulate respectively on the crotch, through the round axle connection who link up the crotch between the hydro-cylinder, and the scissors fork actually plays elevating system's effect, and when work platform stabilized arbitrary height, hydro-cylinder and piston rod become the member in the rigid frame. The hydraulic system is driven by a manual pump, reversing and synchronizing measures are adopted in the hydraulic system, and protective measures such as overpressure, decompression, limiting, damping and the like are also considered. The utility model discloses simple structure, it is steady and lifting range is big to go up and down, and weight is lighter, and convenient operation is a light practical transfer device.
Description
1. technical field
The utility model belongs to the special-purpose bont of mobile unit field, is specifically related to a kind of hand hydraulic hoist of scissor-type that loads and unloads when being used for the product container transshipment.
2. background technology
Elevator all is to conduct oneself with dignity greater than rated load both at home and abroad, and does not have the situation of rated load greater than deadweight.The structure of domestic fork type elevator is that oil cylinder one end is installed on the underframe by hinge seat, and the hinge seat that the other end is stuck by scissors is hinged, and this moment, the oil cylinder profile was bigger, and scissors fork magnification factor is not high, and the lift car scantling of structure strengthens, and deadweight increases.
Utility model patent (patent No. 89218047.1) discloses a kind of small-sized overload hydraulic bay-lift, be in the direct perforate in the top of piston rod, with bearing pin piston rod and jib are articulated and connected, a tween drive shaft is arranged at the bottom of oil cylinder, and the thin axle in two ends is articulated and connected with the jib axle bed.
3. summary of the invention
In order to overcome the deficiency of scissors fork elevating machine in the prior art, the utility model provides a kind of scissor-type hand hydraulic hoist, this elevator adopts scissors lever type mechanical structure, workplatform relies on four hydraulic oil cylinder driving that are articulated in the scissors fork, one end of crotch moves in chute, and the scissors fork not only plays the effect of lifting mechanism, and when workplatform is stabilized to arbitrary height, oil cylinder and piston rod become the rod member in the rigid frame, have strengthened bearing capacity.
The utility model purpose is achieved in that
The hand hydraulic hoist of a kind of scissor-type contains: support body, castor, handle, pull bar (the manual pump crank of holding concurrently), transition guide rail, supporting leg and hydraulic efficiency pressure system; Support body is by upper frame, underframe, and crotch I, crotch II form, and the with lock tight mechanism caster wheel of four universal types is housed on the underframe, and an end is equipped with demountable handle; Four jiaos at underframe are inserted with four pull bars (double as manual pump crank), as the auxiliary member of handle; Crotch I and crotch II are hinged with rectangular beam to form, and it cooperates the up-and-down movement that can realize workplatform with oil cylinder; Two guide rails of parallel laid above the workplatform, the front end of two guide rails is equipped with two transition guide rails; Hydraulic efficiency pressure system is made up of manual pump, change-over valve, hydraulic lock, synchronous valve, safety valve, limit valve, oil cylinder, fuel tank, oil filter, dash pot valve, adaptor union and transport pipe.Be characterized in: workplatform relies on four hydraulic oil cylinder driving that are articulated in the scissors fork, and per two oil cylinders are one group, and the two ends of every group oil cylinder directly are articulated in respectively on the fork-shearing frame, and two group oil cylinders directly link to each other by the circular shaft that connects crotch; The upper end of crotch I is connected with upper frame, the lower end of crotch I is arranged in the chute of underframe, the upper end of crotch II is arranged in the chute of upper frame, its lower end is connected with underframe, by the roller motion, oil cylinder and piston rod become the rod member in the rigid frame to one end of crotch in the upper and lower chute of framework.
Crotch I and crotch II are hinged with rectangular beam to form, and it cooperates the up-and-down movement that can realize workplatform with oil cylinder, and two guide rails of parallel laid are orbits of freight container castor above the workplatform.One end of workplatform is provided with two transition guide rails, not the time spent sagging naturally, utilize the strut supporting of self during work, with it elevator and other equipment are coupled together.
One end of underframe is equipped with handle, advances, retreats and turn for the operate lifting machine.Two closed slides are welded with dead block by handle one end above the workplatform, and the other end has an active block stop, and the location is used before and after doing when freight container runs on the guide rail appropriate location.As the auxiliary member of handle, be inserted with four pull bars of detouchable (double as manual pump crank) at underframe four jiaos, when heavy duty, help handle work.
Four universal type tight mechanism with lock caster wheeles, locked when elevator work (rise, descend), play brake action; When moving, unclamps by elevator.Because this castor can rotate arbitrarily in 360 ° of directions, so elevator can turn on the spot, and promptly turn radius is zero.
The utility model hydraulic efficiency pressure system is made up of manual pump, change-over valve, hydraulic lock, synchronous valve, safety valve, limit valve, oil cylinder, fuel tank, oil filter, dash pot valve, adaptor union and transport pipe.When opening the supreme raise-position of change-over valve, shake manual pump, pressure oil is dispensed to four oil cylinders through change-over valve, hydraulic lock, synchronous valve, and driving oil cylinder is stretched out, and realizes that workplatform rises; When pulling the change-over valve handle to the position that descends, shake manual pump, open hydraulic lock by the hydraulic lock control oil channel, pressure oil flows back to fuel tank through synchronous valve, hydraulic lock, change-over valve, dash pot valve, realizes that workplatform descends.It is motionless that hydraulic lock can guarantee that workplatform rests on the following optional position of certain altitude under rated load; Safety valve can prevent system overload, the protection system trouble free service, and when system pressure surpassed rated pressure, the off-load voluntarily of this valve allowed pressure oil directly return fuel tank; But limit valve restraint of labour platform maximum vertical penetration; Dash pot valve can make workplatform descend reposefully.
The beneficial effects of the utility model are, simple in structure, easy to operate, load carrying ability is big, because of the two ends of oil cylinder are articulated in respectively on the crotch, not only make lifting steady, and make range bigger.Be provided with the with lock tight mechanism caster wheel of universal type, the weight of lift car is lighter, and operation is convenient, turn flexibly, and be a kind of transporter of light practicality.
4. description of drawings
Fig. 1 is the structural representation of the hand hydraulic hoist of the utility model scissor-type.
Fig. 2 is the local structure scheme drawing of the hand hydraulic hoist of the utility model scissor-type, and two group oil cylinders directly connect by the circular shaft of crotch among the figure.
Among the figure, 1. upper frame 2. transition guide rails 3, crotch I 4. crotch II 5. pull bars 6. underframes 7. castors 8. supporting legs 9. handles 10. hydraulic efficiency pressure systems 11, circular shaft 12, oil cylinder
Below in conjunction with drawings and Examples the utility model is further specified
5. the specific embodiment
In Fig. 1, the hand hydraulic hoist of the utility model scissor-type contains support body, transition guide rail 2, castor 7, handle 9, pull bar 5 and hydraulic efficiency pressure system 10.Support body is made up of upper frame 1, underframe 6, crotch I 3, crotch II 4, supporting leg 8 etc.The upper end of crotch I 3 is connected with upper frame 1, and the lower end of crotch I 3 is arranged in the chute of underframe 6, and the upper end of crotch II 4 is arranged in the chute of upper frame, and its lower end is connected with underframe 6; Crotch I 3 and crotch II 4 are provided with four oil cylinders 12, and per two oil cylinders 12 are one group, and the two ends of every group oil cylinder 12 are articulated in respectively on crotch I 3 and the crotch II 4, and two group oil cylinders 12 directly connect by the circular shaft 11 that connects crotch.Crotch I 3 and crotch II 4 are hinged with the rectangle wooden frame to form, and it cooperates the up-and-down movement that can realize workplatform with oil cylinder 12, two guide rails of parallel laid above the workplatform, and it is the orbit of freight container castor.One end of workplatform is equipped with two transition guide rails 2, this transition guide rail 2 not the time spent sagging naturally, utilize the strut supporting of self during work, with it elevator and other equipment are coupled together.One end of underframe 6 is equipped with handle 9, advances, retreats and turn for the operate lifting machine.As the auxiliary member of handle 9, be inserted with four pull bars 5 at underframe 6 four jiaos, when heavy duty, help handle 9 work.Be welded with dead block by handle one end, the other end has an active block stop, and the location is used before and after doing when freight container runs on the guide rail appropriate location.The with lock tight mechanism caster wheel 7 of four universal types is housed on the underframe 6, and locked castor when elevator rises or descends unclamps during operation.Because this castor can rotate arbitrarily in 360 ° of directions, so elevator can turn on the spot, and promptly turn radius is zero.Crotch I 3 and crotch II 4 are that the rectangular beam with No. 8 poor steel welding is hinged and forms, it cooperates the up-and-down movement of realizing workplatform with oil cylinder, two transition guide rails 2 that one end of workplatform is provided with utilize the strut supporting of self during work, with it elevator and miscellaneous equipment are coupled together.
The hydraulic efficiency pressure system 10 of the hand hydraulic hoist of the utility model scissor-type can realize that workplatform rises and descends, and prevents overload, but and restraint of labour platform maximum vertical penetration.
Claims (3)
1. the hand hydraulic hoist of scissor-type contains support body, transition guide rail (2), castor (7), handle (9), pull bar (5) and hydraulic efficiency pressure system (10); Support body is made up of upper frame (1), underframe (6), crotch I (3), crotch II (4), supporting leg (8); The upper end of crotch I (3) is connected with upper frame (1), and the lower end of crotch I (3) is arranged in the chute of underframe (6); The upper end of crotch II (4) is arranged in the chute of upper frame (1), and the lower end of crotch II (4) is connected with underframe (6); It is characterized in that, there are four oil cylinders to be separately positioned on crotch I (3) and the crotch II (4), per two oil cylinders (12) are one group, and the two ends of every group oil cylinder (12) are articulated in respectively on crotch I (3) and the crotch II (4), and two group oil cylinders (12) directly connect by the circular shaft (11) that connects crotch.
2. according to the hand hydraulic hoist of right 1 described scissor-type, it is characterized in that an end of described underframe (6) is provided with handle (9), underframe (6) is provided with detouchable pull bar (5) all around.
3. according to the hand hydraulic hoist of right 1 described scissor-type, it is characterized in that the bottom of described underframe (6) is provided with the universal type castor (7) of four tight mechanisms with lock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420033555 CN2700305Y (en) | 2004-04-01 | 2004-04-01 | Scissor fork type hand-operated hydraulic lift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420033555 CN2700305Y (en) | 2004-04-01 | 2004-04-01 | Scissor fork type hand-operated hydraulic lift |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2700305Y true CN2700305Y (en) | 2005-05-18 |
Family
ID=34772810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420033555 Expired - Fee Related CN2700305Y (en) | 2004-04-01 | 2004-04-01 | Scissor fork type hand-operated hydraulic lift |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2700305Y (en) |
Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101033053B (en) * | 2007-03-29 | 2011-02-09 | 朱建华 | Side rod drive raiser |
| CN102152288A (en) * | 2011-01-17 | 2011-08-17 | 王后忠 | Multifunctional frock device under vehicle |
| CN102285610A (en) * | 2011-07-28 | 2011-12-21 | 新疆新能钢结构有限责任公司 | Hydraulic hoisting device and using method thereof |
| CN102381537A (en) * | 2011-09-20 | 2012-03-21 | 国鼎(南通)管桩有限公司 | Chain type concrete pipe pile die displacement trolley |
| CN102616580A (en) * | 2012-03-19 | 2012-08-01 | 白山市星泰矿山机械制造有限公司 | Assembly and disassembly conveying device |
| CN102928572A (en) * | 2012-10-26 | 2013-02-13 | 中国地质大学（武汉） | Hydraulic-lifting self-weight loading device for landslide physical model test |
| CN102935986A (en) * | 2012-11-16 | 2013-02-20 | 无锡阳工机械制造有限公司 | Method for arranging executive components of hydraulic pressure lift platform |
| CN102963837A (en) * | 2012-11-16 | 2013-03-13 | 无锡阳工机械制造有限公司 | Connecting method of elevator bracket structure |
| CN103018425A (en) * | 2012-12-17 | 2013-04-03 | 中国地质大学（武汉） | Manual screw type self weight loading device for physical landslide model test |
| CN103626075A (en) * | 2013-11-22 | 2014-03-12 | 淮南市金德实业有限公司 | Intelligent hydraulic elevator |
| CN104310271A (en) * | 2014-10-11 | 2015-01-28 | 泰兴市塔力机械制造有限公司 | Hydraulic lifting control method |
| CN104405715A (en) * | 2014-10-16 | 2015-03-11 | 江苏海力达机电制造有限公司 | Two-speed hydraulic cylinder and lifting mechanism applying same |
| CN101746691B (en) * | 2010-01-21 | 2015-04-15 | 上海攀杰机械有限公司 | Scissors-type accessible elevating platform |
| CN104787698A (en) * | 2015-03-05 | 2015-07-22 | 苏州市汉诺威升降台有限公司 | Lifting platform |
| CN105129671A (en) * | 2015-09-15 | 2015-12-09 | 徐州和胜重工有限公司 | Double-shear-fork hydraulic lifting platform with leveling device |
| CN105668456A (en) * | 2016-04-18 | 2016-06-15 | 苏州市汉诺威升降台有限公司 | Rolling wheel type lifting car |
| CN105772322A (en) * | 2015-12-23 | 2016-07-20 | 成都拓利科技股份有限公司 | Automatic coating RTV dip coating machine for cantilever support column insulators |
| CN105905500A (en) * | 2016-06-03 | 2016-08-31 | 甘宁 | Jack used for stereoscopic warehouse |
| CN107041823A (en) * | 2017-03-29 | 2017-08-15 | 浙江大学 | Gait rehabilitation trainer and its method |
| CN108482325A (en) * | 2018-04-20 | 2018-09-04 | 重庆军通汽车有限责任公司 | Vehicle washdown device |
| CN109592996A (en) * | 2019-01-21 | 2019-04-09 | 北京中科博联环境工程有限公司 | Fixed-end forces system |
| CN109795965A (en) * | 2019-03-13 | 2019-05-24 | 贵州大学 | A kind of supporting component devices of mobile hydraulic lifting platform |
| CN110027791A (en) * | 2019-04-17 | 2019-07-19 | 湖南省金润碲业有限公司 | A kind of metallic solution transfer device |
| CN110950112A (en) * | 2019-11-25 | 2020-04-03 | 重庆工业职业技术学院 | Loading and unloading device for goods |
| CN112093711A (en) * | 2019-06-17 | 2020-12-18 | 成都华银达电器有限公司 | Bury formula case and become elevating gear |
-
2004
- 2004-04-01 CN CN 200420033555 patent/CN2700305Y/en not_active Expired - Fee Related
Cited By (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101033053B (en) * | 2007-03-29 | 2011-02-09 | 朱建华 | Side rod drive raiser |
| CN101746691B (en) * | 2010-01-21 | 2015-04-15 | 上海攀杰机械有限公司 | Scissors-type accessible elevating platform |
| CN102152288A (en) * | 2011-01-17 | 2011-08-17 | 王后忠 | Multifunctional frock device under vehicle |
| CN102285610A (en) * | 2011-07-28 | 2011-12-21 | 新疆新能钢结构有限责任公司 | Hydraulic hoisting device and using method thereof |
| CN102285610B (en) * | 2011-07-28 | 2013-07-31 | 新疆新能钢结构有限责任公司 | Hydraulic hoisting device and using method thereof |
| CN102381537A (en) * | 2011-09-20 | 2012-03-21 | 国鼎(南通)管桩有限公司 | Chain type concrete pipe pile die displacement trolley |
| CN102616580A (en) * | 2012-03-19 | 2012-08-01 | 白山市星泰矿山机械制造有限公司 | Assembly and disassembly conveying device |
| CN102928572A (en) * | 2012-10-26 | 2013-02-13 | 中国地质大学（武汉） | Hydraulic-lifting self-weight loading device for landslide physical model test |
| CN102928572B (en) * | 2012-10-26 | 2015-07-15 | 中国地质大学（武汉） | Hydraulic-lifting self-weight loading device for landslide physical model test |
| CN102935986A (en) * | 2012-11-16 | 2013-02-20 | 无锡阳工机械制造有限公司 | Method for arranging executive components of hydraulic pressure lift platform |
| CN102963837A (en) * | 2012-11-16 | 2013-03-13 | 无锡阳工机械制造有限公司 | Connecting method of elevator bracket structure |
| CN103018425A (en) * | 2012-12-17 | 2013-04-03 | 中国地质大学（武汉） | Manual screw type self weight loading device for physical landslide model test |
| CN103626075A (en) * | 2013-11-22 | 2014-03-12 | 淮南市金德实业有限公司 | Intelligent hydraulic elevator |
| CN104310271A (en) * | 2014-10-11 | 2015-01-28 | 泰兴市塔力机械制造有限公司 | Hydraulic lifting control method |
| CN104405715A (en) * | 2014-10-16 | 2015-03-11 | 江苏海力达机电制造有限公司 | Two-speed hydraulic cylinder and lifting mechanism applying same |
| CN104787698A (en) * | 2015-03-05 | 2015-07-22 | 苏州市汉诺威升降台有限公司 | Lifting platform |
| CN105129671A (en) * | 2015-09-15 | 2015-12-09 | 徐州和胜重工有限公司 | Double-shear-fork hydraulic lifting platform with leveling device |
| CN105772322A (en) * | 2015-12-23 | 2016-07-20 | 成都拓利科技股份有限公司 | Automatic coating RTV dip coating machine for cantilever support column insulators |
| CN105772322B (en) * | 2015-12-23 | 2018-10-09 | 成都拓利科技股份有限公司 | A kind of cantilevered support insulator automatic coating RTV dip coaters |
| CN105668456A (en) * | 2016-04-18 | 2016-06-15 | 苏州市汉诺威升降台有限公司 | Rolling wheel type lifting car |
| CN105905500A (en) * | 2016-06-03 | 2016-08-31 | 甘宁 | Jack used for stereoscopic warehouse |
| CN107041823A (en) * | 2017-03-29 | 2017-08-15 | 浙江大学 | Gait rehabilitation trainer and its method |
| CN108482325A (en) * | 2018-04-20 | 2018-09-04 | 重庆军通汽车有限责任公司 | Vehicle washdown device |
| JP2022517492A (en) * | 2019-01-21 | 2022-03-09 | ベイジン グリーンテック サイエンス アンド テクノロジー カンパニー リミテッド | Solid waste treatment system |
| CN109592996A (en) * | 2019-01-21 | 2019-04-09 | 北京中科博联环境工程有限公司 | Fixed-end forces system |
| JP7285323B2 (en) | 2019-01-21 | 2023-06-01 | ベイジン グリーンテック サイエンス アンド テクノロジー カンパニー リミテッド | solid waste treatment system |
| WO2020151284A1 (en) * | 2019-01-21 | 2020-07-30 | 北京中科博联环境工程有限公司 | Solid waste treatment system |
| CN109592996B (en) * | 2019-01-21 | 2020-10-16 | 北京中科博联科技集团有限公司 | Solid waste treatment system |
| CN109795965A (en) * | 2019-03-13 | 2019-05-24 | 贵州大学 | A kind of supporting component devices of mobile hydraulic lifting platform |
| CN110027791A (en) * | 2019-04-17 | 2019-07-19 | 湖南省金润碲业有限公司 | A kind of metallic solution transfer device |
| CN112093711A (en) * | 2019-06-17 | 2020-12-18 | 成都华银达电器有限公司 | Bury formula case and become elevating gear |
| CN110950112B (en) * | 2019-11-25 | 2021-07-02 | 重庆工业职业技术学院 | Loading and unloading device for goods |
| CN110950112A (en) * | 2019-11-25 | 2020-04-03 | 重庆工业职业技术学院 | Loading and unloading device for goods |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2700305Y (en) | Scissor fork type hand-operated hydraulic lift | |
| CN2915817Y (en) | Scissor type self-lifting fluctuating platform | |
| CN203079627U (en) | Scissors fork type hydraulic automatic lift trolley | |
| CN205932571U (en) | Portable hydraulic pressure platform | |
| CN2801584Y (en) | Hydraulic lifting conveger cart | |
| CN207827721U (en) | Small folding hoisting apparatus | |
| CN210848886U (en) | Novel three-dimensional flexible hydraulic platform and welding equipment | |
| CN202575878U (en) | Pull wire type manual hydraulic platform car | |
| CN107055422A (en) | A kind of hydraulic elevator with all-around mobile seat | |
| CN212101743U (en) | Cargo handling car | |
| CN2910886Y (en) | Hand cart for transporting goods | |
| CN202575874U (en) | Hand-style manual hydraulic platform vehicle | |
| CN202465199U (en) | Reach truck mast | |
| CN214570497U (en) | Forklift portal frame device and forward forklift thereof | |
| CN205344662U (en) | Special type removes rescue intelligent service car | |
| CN2421277Y (en) | Battery platform lifting vehicle | |
| CN2789183Y (en) | Refuse vehicle loading mechanism | |
| CN202575876U (en) | Knob type manual hydraulic platform car | |
| CN201102877Y (en) | Manual hydraulic tray transporting cart | |
| CN218931614U (en) | Stable hydraulic lifting platform that promotes | |
| CN213141266U (en) | Laborsaving transportation lift flue installation auxiliary assembly | |
| CN219236878U (en) | Tank car anti-tilting bracket | |
| CN212504706U (en) | Movable maintenance device for coke tank of dry quenching coke | |
| CN211035074U (en) | Barrier-free transportation platform | |
| CN217171741U (en) | Container bottom liquid guiding device |
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: 20050518 |