CN102173365B - Container crane - Google Patents
Container crane Download PDFInfo
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- CN102173365B CN102173365B CN 201110045517 CN201110045517A CN102173365B CN 102173365 B CN102173365 B CN 102173365B CN 201110045517 CN201110045517 CN 201110045517 CN 201110045517 A CN201110045517 A CN 201110045517A CN 102173365 B CN102173365 B CN 102173365B
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Abstract
The invention provides a container crane. The container crane comprises a crane girder (3), a main carriage (1), a main carriage lifting appliance (2), a support pillar (4) and a lifting platform (5), wherein the main carriage (1) is arranged on the crane girder (3) and can move along the crane girder (3); the main carriage lifting appliance (2) is arranged below the main carriage (1) and can move along with the main carriage (1); and the lifting platform (5) is arranged at the downstream of the main carriage (1) in the container unloading stroke in a liftable manner, and is used for lifting the to-be-unloaded container. The container crane provided by the invention can be used for well eliminating the generation of waiting time for a lorry, can be easily used for the improvement on old equipment, has greatly increased operation efficiency, and causes no increase in the cost.
Description
Technical field
The present invention relates to the hoisting crane field, in particular to a kind of container handling crane.
Background technology
In existing shore container crane (hereinafter to be referred as the bank bridge) operation process, development along with the boats and ships maximization, the handling efficiency of opposite bank bridge requires more and more higher, and because the restriction of bank bridge complete machine metal construction self and harbour wheel load allowable, cause the bank bridge can not do infinitely greatly, and be subject to the restriction of driver operation traveling comfort, also make the impossible unlimited lifting of work speed of bank bridge mechanism, so we must start with from the method for loading and unloading and the self structure of container handling crane, strive to find new handling technology and method.
Traditional container handling crane is generally single crab list suspender (or double-box hanger) form, its work flow is: dolly is at hoisting crane (from container ship) lifting container foremost, when then trolley travelling is to the truck upper position, transfer freight container to truck; After the suspender lock pin reversed, empty suspender returned the continuation operation along former stroke.There is following drawback in such operation process: if when not having truck to arrive, must wait for that truck arrives, cause the generation of wait time; The time of dolly in fully loaded and idle path is not fully used in the whole operation process, causes inefficiency; If the hoisting crane of double-box hanger form is had relatively high expectations to driver's operating skill, and aloft work is simultaneously to two casees difficulties, and when transfer to truck, the stop position of truck and driver operation are all required very high, the wait time when having caused equally adjustment.
Summary of the invention
The present invention aims to provide a kind of container handling crane, can well eliminate the generation of waiting for the truck time, and is easy to the transformation for used equipment, and operating efficiency obviously improves, and can not increase cost.
To achieve these goals, according to an aspect of the present invention, provide a kind of container handling crane, having comprised: Crane Beam; Main carriage is arranged on the Crane Beam, can move along Crane Beam; The main carriage suspender is arranged on the main carriage below, moves with main carriage; And pillar stiffener, also comprise: lifting table, liftably be arranged on the downstream of unloading main carriage in the case stroke, be used for lifting and treat loading and unloading container.
Further, lifting table also can be along the Crane Beam parallel motion.
Further, the main carriage suspender is provided with height sensor, is used for obtaining the altitude signal of main carriage suspender, and lifting table is adjusted oneself height according to altitude signal, aims at the main carriage suspender.
Further, the latch gear of main carriage suspender comprises binary pair, and binary pair is used for sending energizing signal to the height sensor after the main carriage suspender pins freight container, make height sensor obtain the altitude signal of main carriage suspender.
Further, container handling crane also comprises: handing device, be arranged on the downstream of unloading lifting table in the case stroke, and have the structure of loading and unloading container on lifting table.
Further, lifting table liftably is arranged on the pillar stiffener.
Further, handing device comprises: flexible robot arm device, and an end is hinged on the Crane Beam, and the other end is provided with handling section, and handling section is used for the handling freight container; Actuating device, an end is hinged on the Crane Beam, and the other end is connected on the mechanical arm of flexible robot arm device, the swing of the flexible robot arm device of control.
Further, flexible robot arm device also comprises: rotating part, rotating part connects handling section and mechanical arm, and the rotation of control handling section.
Further, handling section comprises the adjusting oil cylinder, regulates the handling angle that oil cylinder is regulated handling section.
Further, container handling crane also comprises: Control Room, Control Room are arranged on the Crane Beam movably, are used for observing and controlling the action of flexible robot arm device.
According to technical scheme of the present invention, container handling crane comprises and liftably is arranged on the lifting table that unloads main carriage downstream in the case stroke, the horizontal motion that the horizontal motion that former cause main carriage is finished alone and up-and-down movement are decomposed into dolly and the up-and-down movement of lifting table, can well eliminate the generation of waiting for the truck time, Effective Raise the work efficiency of container handling crane, owing to only having increased lifting table, therefore deadweight is lower, can not increase the laid down cost of harbour.Lifting table also can be along the Crane Beam parallel motion, can according to the parallel motion of main carriage apart from the position of adjusting switching freight container between lifting table and the main carriage, further increase work efficiency.Height sensor makes lifting table can automatically adjust the height that docks with the main carriage suspender, and reduces time cost.The alerting ability that is arranged so that container handling crane of handing device is higher, and further division has been carried out in the operating area, and it is more reasonable to divide the work, and has further improved work efficiency.Adjusting oil cylinder on the mechanical arm makes the loading and unloading of freight container convenient, is used in conjunction with swing type mechanism, can satisfy freight container at any angle to case.The Control Room that arranges movably makes it possible to the observation of flexible robot arm device and lifting table and controls convenient reliable.
Description of drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, consists of a part of the present invention, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 shows container handling crane according to the present invention and is in the structural representation of grabbing the case state;
Fig. 2 shows container handling crane according to the present invention and is in the structural representation that unloads the case state;
Fig. 3 shows the structural representation according to the handing device of container handling crane of the present invention; And
Fig. 4 shows the operation process chart according to container handling crane of the present invention.
The specific embodiment
Hereinafter also describe in conjunction with the embodiments the present invention in detail with reference to accompanying drawing.Need to prove, in the situation that do not conflict, embodiment and the feature among the embodiment among the application can make up mutually.
Traditional container handling crane, the general single crab mode of operation that adopts, be main carriage from the container ship behind the lifting container, run to the top of truck along the track of Crane Beam always, then transfer freight container to truck, except main carriage must be along former road be returned, also exist truck not to the wait time of the main carriage that causes.The long reciprocating travel of main carriage and truck have reduced the operating efficiency of hoisting crane not to the wait time that causes.
As shown in Figure 1, container handling crane according to an embodiment of the invention, comprise Crane Beam 3, be arranged on the Crane Beam 3 and can be along the main carriage 1 of Crane Beam 3 parallel motions, main carriage suspender 2 and the pillar stiffener 4 that is arranged on main carriage 1 below and moves with main carriage 1, it also comprises liftably being arranged on unloads main carriage 1 sense of motion downstream in the case stroke, is used for the lifting table 5 that loading and unloading container is treated in lifting.The container handling crane of the present embodiment, with originally by the main carriage system finish alone from container ship 9 loading containers, and freight container hung oneself from boats and ships be transported on the coast truck This move and be decomposed into by the main carriage system freight container to be hung oneself from boats and ships and be transported to lifting table 5, then by lifting table 5 freight container is transported to the coordinative operation of two mechanisms in truck place.The main carriage system comprises main carriage 1 and main carriage suspender 2.Main carriage 1 and main carriage suspender 2 will be finished two actions in the independently working of main carriage system, at first to finish freight container is transported to the bank side from the extra large side of Crane Beam 3, and then freight container dropped to lower truck position from eminence, finish the carrying of freight container, the reasons such as delay owing to truck, easily cause the wait time of dolly, cause hoisting crane work inefficiency.And the container handling crane of embodiments of the invention is divided into two parts with the carrying of freight container, the horizontal motion part of main carriage system and the up-and-down movement part of lifting table 5.The main carriage system is transported to the bank rear flank with freight container from Crane Beam 3 extra large sides, freight container is unloaded on the lifting table 5, then the main carriage system returns container ship 9 places, prepare carrying next time, and lifting table 5 is after receiving the freight container that the main carriage system transports, begin to move downward, freight container is transported to truck 8 places, then return the height and position of main carriage suspender 2 in the main carriage system, prepare the next freight container of switching, in this process, the main carriage system is because it goes without doing dipping and heaving, and the arrival that need not wait for truck 8 just can carry out the carrying of next freight container, effectively saved wait time and the time that work flow is spent, greatly improved the work efficiency of container handling crane.Here, the lifting mechanism type of drive of lifting table 5 can be Mechanical Driven, and for example chain drive or gear drive also can be hydraulic-driven.The lifting leader of lifting table 5 is made by rigid material, has guaranteed that freight container can not shake, and has stable transport structure the moving up and down in the process of lifting table 5.On lifting table 5, also be provided with the guide plate guiding device that is obliquely installed with respect to lifting table 5 carrying surfaces, when freight container is put into lifting table 5, place along the dip plane of guide plate guiding device, can realize the Fast Installation location of freight container.The freight container installed position also includes inhibiting device on lifting table 5, such as micro-switch etc., has put into the pre-position of lifting table 5 to determine freight container, can begin freight container is carried out elevating control.
Suppose the main carriage system from container ship 9 begin transferring containers to freight container broadcast to the truck required time be 40 seconds, the main carriage system from container ship 9 begin transferring containers to freight container broadcast to the time of lifting table 5 be 25 seconds, lifting table 5 with freight container broadcast to the truck time be 15 seconds, spent time of workflow of main carriage system independently working is 80 seconds so, add after the lifting table 5, the turn-around time of main carriage system is 50 seconds, the turn-around time of lifting table 5 is 30 seconds, that is to say, after adding lifting table 5, the turn-around time of lifting table 5 is comprised in the turn-around time of main carriage system, whole workflow only expends 50 seconds, and it is 30 seconds that whole work flow is saved time, and raising efficiency has reached 60%, therefore, Effective Raise work efficiency.
Consider lifting table 5 in above-described embodiment except with 30 seconds of main carriage system common operation, the floor time that also has 20 seconds wait main carriage system handling freight container, in order to shorten this section wait time, further promote the work efficiency of container handling crane, container handling crane according to an embodiment of the invention, lifting table 5 also can be along Crane Beam 3 parallel motions.Like this, lifting table 5 can be determined level switching position with the freight container of main carriage system according to the turn-around time of main carriage system, shortens or eliminate the wait time of lifting table 5, shortens the forced stroke of main carriage system, thereby promotes work efficiency.
In order to obtain the handling elevation information of main carriage suspender 2 in the main carriage system, be provided with height sensor at main carriage suspender 2, height sensor sends to lifting table 5 with the altitude signal of obtaining, lifting table 5 is adjusted oneself height according to this altitude signal, thereby reach and main carriage suspender 2 same height, and aim at main carriage suspender 2, after the main carriage system comes the freight container allocation and transportation, can directly freight container be transferred to lifting table 5 from the main carriage system, shorten the transhipment time.Preferably, on main carriage suspender 2, also be provided with binary pair, this binary pair is used for sending energizing signal to sensor highly after main carriage system and freight container are to case, make height sensor obtain the at this moment altitude signal of main carriage suspender 2 according to energizing signal, thereby this altitude signal is sent to lifting table 5.In the container handling crane of the present embodiment, height sensor is the altitude signal of obtaining main carriage suspender 2 by a kind of like this mode, after main carriage suspender 2 and the freight container on the boats and ships 9 are finished case, the lock pin that is arranged on the main carriage suspender 2 pins freight container under the effect of oil cylinder, can trigger the binary pair that is arranged on the lock pin this moment, binary pair sends to height sensor with energizing signal, after on-the-spot industrial computer calculating, height sensor begins to obtain the altitude signal of main carriage suspender 2 at this moment, and then control the driver train of lifting table 5 by the PLC control setup, make lifting table 5 adjust oneself height according to the altitude signal that receives, reach the height that aligns with main carriage suspender 2, move on main carriage suspender 2 is highly constant or slight, freight container is transferred on the lifting table 5 from boats and ships 9.Height sensor herein is rotary encoder, and rotary encoder can draw the height after pinning freight container on the main carriage suspender 2 according to the original height data of rotation parameter and main carriage suspender 2.
As shown in Figure 1 and Figure 2, as a preferred embodiment of the present invention, container handling crane also comprises handing device 6, and handing device 6 is arranged on the downstream of unloading lifting table 5 in the case stroke, has the structure of loading and unloading container on lifting table 5.Construct for handling 6 comprises: flexible robot arm device 61, one ends are hinged on the Crane Beam 3, and the other end is provided with handling section 611, and handling section 611 is used for the handling freight container to truck 8; Actuating device 62, one ends are hinged on the Crane Beam 3, and the other end is connected on the mechanical arm 612 of flexible robot arm device 61, the swing of the flexible robot arm device 61 of control.Lifting table 5 in the present embodiment liftably is arranged on the pillar stiffener 4, because the existence of handing device 6 can only keep the effect of the lifting part of lifting table 5, and the more refinement of the functions of hoisting crane, efficient improves more.Lifting table 5 is arranged on the middle support column 4, to consider that lifting table 5 is on the impact of the balance of hoisting crane on the one hand, be arranged on the middle support column 4, this impact can be minimized, also can make on the other hand lifting table 5 that stable structure is arranged, can not affect again the operation of main carriage system.As shown in Figure 3, flexible robot arm device 61 also comprises: rotating part 613, and rotating part 613 connects handling section 611 and mechanical arm 612, and the rotation of control handling section 611, and the revolution of rotating part 613 drives can be CD-ROM drive motor.Preferably, also comprise the adjusting oil cylinder in the handling section 611, regulate the handling angle that oil cylinder is regulated handling section 611.The cylinder support a of telescopic robot arm device 61 and swing arm bearing b play fixation, be welded in Crane Beam 3 belows, actuating device 612 is for driving oil cylinder, can realize the swing of flexible robot arm device 61, rotating part 613 can be realized the rotation of handling section 611, be convenient to finish to the freight container on the lifting table 5 to case, and in the handling section 611 with the adjusting oil cylinder that can tilt, when itself and rotating part 613 combination operation, can satisfy freight container at any angle to case, increased the applicability of flexible robot arm device 61, it is more convenient to load and unload.The mechanical arm 612 of the flexible robot arm device 61 of the present embodiment is comprised of internal drive oil cylinder and wirerope-winding rope system, can realize the flexible of mechanical arm 612, better loading and unloading container on lifting table 5.Retractable driving device on the mechanical arm 612 can also be replaced by other devices such as chain or tooth bars, realizes the Telescopic of telescopic boom 612.Annexation between actuating device 62 and the mechanical arm 612 can also can be to be provided with sliding tray at mechanical arm 612 for hinged, and actuating device 61 is mounted slidably along sliding tray, to realize the swing control of flexible robot arm device 61.Actuating device 62 can also be alternate manner with being connected of mechanical arm 612, and the alternate manner here comprises can be realized all obvious modes of texturing that the swing of flexible robot arm device 61 is controlled and be equal to substitute mode.
As depicted in figs. 1 and 2, as a preferred embodiment of the present invention, container handling crane also comprises Control Room 7, Control Room 7 is arranged on the Crane Beam 3 movably, be used for observing and controlling the action of flexible robot arm device 61 and lifting table 5, can realize making the semi-automation of flexible robot arm device 61 and lifting table 5 and manually control, have more operating mode, reliability is higher.
As shown in Figure 4, be the operation process chart according to container handling crane of the present invention.In container handling crane of the present invention, the operating area of hoisting crane is divided into main carriage operating area A and lifting table operating area B, and the operating area C of telescopic mechanical arm.So that freight container is carried to truck 8 as example from container ship 9, its specific implementation process is as follows: the main carriage system moves to and treats the conveying container place on the container ship 9, finish after the case with freight container, lock pin on the main carriage suspender 2 in the main carriage system pins freight container, the binary pair that is arranged on the lock pin sends energizing signal to rotary encoder, rotary encoder calculates by field computer, and obtain this moment main carriage suspender 2 to the case height, then this altitude signal is passed to the PLC control setup on the lifting table 5, the PLC control setup makes lifting table 5 be in the height that docks with main carriage suspender 2 according to the driver train of the altitude signal control lifting table 5 that receives.Then the main carriage system along Crane Beam 3 parallel motions, when it moves to the position of lifting table 5, is transported to freight container on the lifting table 5 from main carriage suspender 2 in the C of operating area, and then the main carriage system returns along former road, continues lifting job.Lifting table 5 is transferred to suitable position with freight container, staff in Control Room 7 controls mechanical arm 612 motions of flexible robot arm device 61, make the handling section 611 crawl freight containers of flexible robot arm device 61, then the combination of the expanding-contracting action of the effect of the driving oil cylinder by actuating device 62 and mechanical arm 612 realizes freight container transhipment of 8 from lifting table 5 to truck.Freight container is put into truck 8 and carry out process to case at flexible robot arm device 61, lifting table 5 is adjusted oneself height according to the altitude signal of the main carriage suspender 2 that obtains, and carries out the handling of next round.9 transport process is the inverse process of said process from truck 8 to container ship.
From above description, can find out, the above embodiments of the present invention have realized following technique effect: container handling crane comprises and liftably is arranged on the lifting table that unloads main carriage downstream in the case stroke, the horizontal motion that the horizontal motion that former cause main carriage is finished alone and up-and-down movement are decomposed into dolly and the up-and-down movement of lifting table, can well solve the generation of waiting for the truck time, Effective Raise the work efficiency of container handling crane, owing to only having increased lifting table, therefore deadweight is lower, can not increase the laid down cost of harbour.Lifting table also can be along the Crane Beam parallel motion, can according to the parallel motion of main carriage apart from the position of adjusting switching freight container between lifting table and the main carriage, further increase work efficiency.Height sensor makes lifting table can automatically adjust the height that docks with the main carriage suspender, and reduces time cost.The alerting ability that is arranged so that container handling crane of handing device is higher, and further division has been carried out in the operating area, and it is more reasonable to divide the work, and has further improved work efficiency.Adjusting oil cylinder on the mechanical arm makes the loading and unloading of freight container convenient, is used in conjunction with swing type mechanism, can satisfy freight container at any angle to case.The Control Room that arranges movably makes it possible to the observation of flexible robot arm device and lifting table and controls convenient reliable.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. container handling crane comprises:
Crane Beam (3);
Main carriage (1) is arranged on the described Crane Beam (3), can be mobile along described Crane Beam (3);
Main carriage suspender (2) is arranged on described main carriage (1) below, moves with described main carriage (1);
Pillar stiffener (4), and
Lifting table (5) liftably is arranged on the downstream of unloading main carriage described in the case stroke (1), is used for lifting and treats loading and unloading container;
It is characterized in that, described container handling crane also comprises:
Handing device (6) is arranged on the downstream of unloading lifting table described in the case stroke (5), has at described lifting table
(5) structure of the described freight container of upper loading and unloading.
2. container handling crane according to claim 1, it is characterized in that: described lifting table (5) also can be along described Crane Beam parallel motion.
3. container handling crane according to claim 1, it is characterized in that, described main carriage suspender (2) is provided with height sensor, be used for obtaining the altitude signal of described main carriage suspender (2), described lifting table (5) is adjusted oneself height according to described altitude signal, aims at described main carriage suspender (2).
4. container handling crane according to claim 3, it is characterized in that, the latch gear of described main carriage suspender (2) comprises binary pair, described binary pair is used for sending energizing signal to described height sensor after described main carriage suspender (2) pins freight container, make described height sensor obtain the altitude signal of described main carriage suspender (2).
5. container handling crane according to claim 1 is characterized in that, described lifting table (5) liftably is arranged on the described pillar stiffener (4).
6. container handling crane according to claim 1 is characterized in that, described handing device (6) comprising:
Flexible robot arm device (61), an end is hinged on the described Crane Beam (3), and the other end is provided with handling section (611), and described handling section (611) is used for the described freight container of handling;
Actuating device (62), an end are hinged on the described Crane Beam (3), and the other end is connected on the mechanical arm (612) of described flexible robot arm device (61), controls the swing of described flexible robot arm device (61).
7. container handling crane according to claim 6 is characterized in that, described flexible robot arm device (61) also comprises:
Rotating part (613), described rotating part (613) connects described handling section (611) and described mechanical arm (612), and controls the rotation of described handling section (611).
8. container handling crane according to claim 7 is characterized in that, described handling section (611) comprises the adjusting oil cylinder, and described adjusting oil cylinder is regulated the handling angle of described handling section (611).
9. container handling crane according to claim 8 is characterized in that, also comprises:
Control Room (7), described Control Room (7) are arranged on the described Crane Beam (3) movably, are used for observing and controlling the action of described flexible robot arm device (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110045517 CN102173365B (en) | 2011-02-24 | 2011-02-24 | Container crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110045517 CN102173365B (en) | 2011-02-24 | 2011-02-24 | Container crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102173365A CN102173365A (en) | 2011-09-07 |
| CN102173365B true CN102173365B (en) | 2013-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110045517 Expired - Fee Related CN102173365B (en) | 2011-02-24 | 2011-02-24 | Container crane |
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| CN (1) | CN102173365B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103321152B (en) * | 2012-07-23 | 2015-03-18 | 上海振华重工(集团)股份有限公司 | Telescopic truss crossbeam and manufacture method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1200350A (en) * | 1997-05-23 | 1998-12-02 | 株式会社日立制作所 | Container crane |
| EP1606201B1 (en) * | 2003-03-25 | 2006-12-06 | Noell Mobile Systems & Cranes GmbH | Multifunctional mobile platform for contactless load inspection and for transporting containers |
| CN201092516Y (en) * | 2007-01-23 | 2008-07-30 | 武汉理工大学 | Novel container gantry crane |
| CN102139831A (en) * | 2011-01-25 | 2011-08-03 | 三一集团有限公司 | Container crane and method for loading and unloading containers using crane |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09175781A (en) * | 1995-12-25 | 1997-07-08 | Ishikawajima Harima Heavy Ind Co Ltd | Container crane |
| JPH11278790A (en) * | 1998-03-25 | 1999-10-12 | Ishikawajima Harima Heavy Ind Co Ltd | Container crane |
-
2011
- 2011-02-24 CN CN 201110045517 patent/CN102173365B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1200350A (en) * | 1997-05-23 | 1998-12-02 | 株式会社日立制作所 | Container crane |
| EP1606201B1 (en) * | 2003-03-25 | 2006-12-06 | Noell Mobile Systems & Cranes GmbH | Multifunctional mobile platform for contactless load inspection and for transporting containers |
| CN201092516Y (en) * | 2007-01-23 | 2008-07-30 | 武汉理工大学 | Novel container gantry crane |
| CN102139831A (en) * | 2011-01-25 | 2011-08-03 | 三一集团有限公司 | Container crane and method for loading and unloading containers using crane |
Non-Patent Citations (2)
| Title |
|---|
| JP特开平11-278790A 1999.10.12 |
| JP特开平9-175781A 1997.07.08 |
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Owner name: SANY MARINE HEAVY INDUSTRIES CO., LTD. Free format text: FORMER OWNER: KM GROUP CO., LTD. Effective date: 20150608 |
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Effective date of registration: 20150608 Address after: 519050 Guangdong city of Zhuhai province Pingsha town Ping Road No. 336 East Building Room 310 Patentee after: 31 ocean heavy industry Co., Ltds Address before: 410100 31 industrial city, Changsha economic and Technological Development Zone, Hunan Patentee before: KM Group Co., Ltd. |
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Granted publication date: 20130109 Termination date: 20160224 |