CN2900459Y - Self floating electromagnetic brake - Google Patents
Self floating electromagnetic brake Download PDFInfo
- Publication number
- CN2900459Y CN2900459Y CN 200620068766 CN200620068766U CN2900459Y CN 2900459 Y CN2900459 Y CN 2900459Y CN 200620068766 CN200620068766 CN 200620068766 CN 200620068766 U CN200620068766 U CN 200620068766U CN 2900459 Y CN2900459 Y CN 2900459Y
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- iron core
- fixed core
- buoyancy body
- pressing plate
- slip shaft
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Abstract
This utility model discloses an electromagnetic arrester, whose technical proposal lies in that this utility model comprises an elevator traction machine fixer body, an arrester plate, an arresting electromagnet and a small electromagnet component which is provided on a sliding shaft (30) on the right end of a floater clamp plate (27), wherein a small flexible iron core (31) and a small fixed iron core (32) of the electromagnet component respectively clearance-fit the sliding shaft (30). The small fixed iron core (32) is inwardly provided with a loop winding (33), and a small compression spring (35) is arranged on the sliding shaft (30) between a step hole (34) on the left end of the small fixed iron core (32) and the right end of the floater clamp plate (27). A wedge-shaped locking ring (37) is arranged on a cone-shaped hole (36) of the small flexible iron core (31), an adjustment crew (38) clearance-fits the flexible iron core (31) and the fixed iron core (32), and thread-connects with the right end of the floater clamp plate (27) to preset a proper gap 'delta/2' between the left end-face of the fixed iron core (32) and the right end-face of the floater clamp plate (27).
Description
Affiliated technical field
The utility model relates to a kind of magnet stopper, the especially a kind of magnet stopper that is used for elevator traction machine that can adjust friction lining and brake disc end clearance certainly in the brake disc both ends of the surface floatingly, realize better electromagnetic braking performance.
Background technology
The existing towing machine disk type electromagnetic brake of the amount of copying device as shown in Figure 1, generally is to set trimming screw 2 and the buoyancy body slip shaft 3 that is connected in towing machine fuselage 1 on cantilever ground, towing machine brake disc 7 one end place; Be connected in series and make up compression spring component 9 with screw arbor assembly 6 between electromagnet secured core 4 and the moving iron core 8, set up the correct distance " δ " between secured core 4 and the moving iron core 8, and keep moving relative position between iron core 8 and the secured core 4 with guiding bearing pin 10.Be provided with coil winding 11 in the secured core 4; Buoyancy body pressing plate 5 is provided with slip hole 12, and it constitutes the hole axle slack with slip shaft 3 and cooperates; Place, left side at buoyancy body pressing plate 5 is provided with the allocations stage clip 13 that is serially connected on the slip shaft 3, and the outer end of stage clip 13 preestablishes the precompressed compression of stage clip 13 with nut Anchor plate kit 14.Carry out than being easier in the debugging of above-mentioned prior art before the towing machine product export, but because the traction sheave of brake disc 7 and towing machine is positioned on the same main shaft, after towing machine enters machine room, traction sheave is hung the unreasonable factor that heavily reaches in some elevator machine debugging can cause brake disc 7 to depart from the ideal position of former setting, cause friction lining 15 different wearing and tearing to occur in the brake disc both ends of the surface with friction lining 16, reduce the service life of drg and the reliability of safety arrestment, and the maintenance of the equipment of giving is made troubles.
Summary of the invention
The purpose of this utility model is the above-mentioned deficiency at prior art, propose a kind of can be with the dynamic brake disc endface position of towing machine as benchmark, find accurately through installing self to float, guarantee the comparison equalization of brake disc both ends of the surface distance respectively and between the friction lining.
Above-mentioned purpose of the present utility model is achieved through the following technical solutions: a kind of self float type electromagnetic brake, comprise elevator traction machine fixed main body 17, a brake disc 18 and an electromagnet fixed core 19, moving iron core 20, fixed core stage clip 21, coil winding 22, guiding bearing pin 23, serial connection screw rod 24, friction lining 25,26, buoyancy body pressing plate 27, allocations stage clip 28, nut Anchor plate kit 29, buoyancy body slip shaft 30, it is characterized in that: the slip shaft 30 at buoyancy body pressing plate 27 right-hand member places is provided with a small-sized electromagnet component, its petty action iron core 31, little fixed core 32 is realized free-running fit with slip shaft 30 respectively, be provided with coil winding 33 in the little fixed core 32, on the stepped hole 34 of little fixed core 32 left ends and the slip shaft 30 between buoyancy body pressing plate 27 right-hand members, be provided with small pressure spring 35, conical orifice 36 places of petty action iron core 31 are provided with wedge-like binding ring 37, adjust screw rod 38 and moving iron core 31, fixed core 32 realizes that the hole axle slack cooperates, and with buoyancy body pressing plate 27 right-hand member place thread connection, access the left side of fixed core 32 and the reasonable clearance " δ/2 " between buoyancy body pressing plate 27 right sides in advance; A kind of self float type electromagnetic brake, the fixed main body 40 that comprises elevator traction machine, a brake disc 41 and an electromagnet fixed core 42, moving iron core 43, fixed core stage clip 44, coil winding 45, guiding bearing pin 46, serial connection screw rod 47, friction lining 48,49, buoyancy body pressing plate 50, buoyancy body slip shaft 52, it is characterized in that: the slip shaft 52 at left end place, buoyancy body pressing plate 50 top is provided with a small-sized electromagnet component, its petty action iron core 53, little fixed core 54 is realized free-running fit with slip shaft 52 respectively, be provided with coil winding 55 in the little fixed core 54, conical orifice 56 places at petty action iron core 53 right-hand members are provided with wedge-like binding ring 57, adjust screw rod 58 and fixed core 54 and realize that the hole axle slacks cooperate, and with the big fixed core 42 left end place thread connection that connect firmly on buoyancy body pressing plate 50 tops; In the axis hole 51 of slip shaft 52 left end sections, be provided with pressing plate 59, compression spring 60, the pressure regulating screw 63 that can make buoyancy body pressing plate 50 slippage on slip shaft 52, pressure regulating screw 63 constitutes screw thread pair with the tapped bore of slip shaft 52, be provided with stage clip 62 in the stepped hole 61 on the little fixed core 54, preset adjust screw rod 58 left end section place nut and regulate pressure regulating screw 63 and the compression spring 60 of combination with it, forms the right side and the reasonable clearance " δ/2 " between fixed core stepped hole 61 outer faces greatly of the attaching nut 64 at adjustment screw rod 58 places shown in Figure 9.
The beneficial effect that the utility model compared with prior art has is: with regard to towing machine machine room with hang general assembly such as heavy mail after, displacement to the brake disc appropriateness that may occur, this new solution can be by being arranged on the relative position that little electromagnet component oneself on the buoyancy body slip shaft adjusts itself and brake disc end face, guaranteeing that with the two-sided gap " δ " of former setting half relatively is uniformly distributed between brake disc both ends of the surface and the friction lining, thereby improve the deceleration and stopping performance of towing machine and the service life of equipment.
Description of drawings
The description of drawings of embodiment one;
Figure 1 shows that the structural representation of prior art conventional example;
Fig. 2 is the configuration state scheme drawing of the utility model when electromagnet is cut off the power supply;
Fig. 3 is the utility model " A-A " section-drawing on Fig. 2;
Fig. 4 is the partial enlarged drawing I of the utility model accompanying drawing 2;
Fig. 5 is the configuration state scheme drawing of the utility model when electromagnet is switched on.
Wherein, the label title among Fig. 1 of genus documents is as follows:
1 towing machine fuselage; 2 trimming screws; 3 buoyancy body slip shafts; 4 secured cores; 5 buoyancy body pressing plates; 6 screw arbor assemblies; 7 brake discs; 8 moving iron cores; 9 compression spring components; 10 guiding bearing pins; 11 coil winding; 12 slip holes; 13 stage clips; 14 nut Anchor plate kits; 15 friction linings; 16 friction linings.
It is as follows wherein to belong to the label title of the utility model on Fig. 2, Fig. 3 and Fig. 4:
17 towing machine fixed frames; 18 brake discs; 19 fixed cores; 20 moving iron cores; 21 fixed core compression spring components; 22 coil winding; 23 sliding guiding bearing pins; 24 serial connection screw rods; 25 friction linings; 26 friction linings; 27 buoyancy body pressing plates; 28 allocations stage clips; 29 nut Anchor plate kits; 30 slip shafts; 31 moving iron cores; 32 fixed cores; 33 coil winding; 34 stepped holes; 35 small pressure springs; 36 conical orifice; 37 wedge-like binding rings; 38 adjust screw rod; 39 breach.
The description of drawings of embodiment two:
Fig. 6 is the configuration state scheme drawing of the utility model second embodiment when electromagnet is cut off the power supply;
Fig. 7 is the partial enlarged drawing II of the utility model to Fig. 6;
Fig. 8 is " B-B " section-drawing on the utility model Fig. 7;
Fig. 9 is the configuration state scheme drawing of the utility model when electromagnet is switched on.
It is as follows wherein to belong to the label title of the utility model on Fig. 6, Fig. 7 and Fig. 8:
40 towing machine fuselages; 41 brake discs; 42 fixed cores; 43 moving iron cores; 44 fixed core stage clips; 45 coil winding; 46 guiding bearing pins; 47 serial connection screw rods; 48 friction linings; 49 friction linings; 50 buoyancy body pressing plates; 51 axis holes; 52 slip shafts; 53 petty action iron cores; 54 little fixed cores; 55 coil winding; 56 conical orifice; 57 wedge-like binding rings; 58 adjust screw rod; 59 pressing plates; 60 compression springs; 61 stepped holes; 62 stage clips; 63 pressure regulating screws; 64 nuts; 65 back-up rings.
The specific embodiment
The utility model will be further described below in conjunction with the accompanying drawing of embodiment one
As shown in Figure 2, the installation of each framing member of the present utility model is all based on towing machine fixed frame 17; Slip shaft 30 has been installed, the right-hand member of slip shaft 30 and frame 17 are fixedly connected pedestal 17 upper cantilevers; Slip shaft 30 runs through moving iron core 31, wedge-like binding ring 37, fixed core 32, small pressure spring 35, buoyancy body pressing plate 27, allocations stage clip 28 and realizes axis hole gap bearing fit with these elements; The left end of described stage clip 28 connects slip shaft 30 with nut Anchor plate kit 29, and sets up the precompressed compression of 28 pairs of buoyancy body pressing plates 27 of above-mentioned stage clip; Adjusting screw rod 38 runs through moving iron core 31, fixed core 32 and realizes axis hole gap bearing fits with part 31,32; Left end section and the buoyancy body pressing plate 27 of adjusting screw rod 38 adopt thread connection; Big electromagnet fixed core 19 is fixedly connected with buoyancy body pressing plate 27, is provided with coil winding 22 and fixed core compression spring component 21 in the fixed core 19; Make iron core 20 relative fixed cores 19 do the guide type displacement with the sliding guiding bearing pin 23 of electromagnet, with moving iron core 20 of serial connection screw rod 24 serial connections and fixed core 19, and the axis hole bearing fit of assurance two elements; Moving iron core 20 right sides are fixedly connected with friction lining 25; Left side, buoyancy body pressing plate 27 bottom is fixedly connected with friction lining 26.Form self float type electromagnetic brake behind the above-mentioned overall combined electrical apparatus.
The utility model will be further described below in conjunction with the accompanying drawing of embodiment two
As shown in Figure 6, the installation in each structure of the utility model second embodiment is also all based on towing machine fixed main body 40; Slip shaft 52 has been installed, the right-hand member of slip shaft 52 and towing machine fuselage 40 are fixedly connected pedestal 40 upper cantilevers; Slip shaft 52 runs through buoyancy body pressing plate 50, little fixed core 54, wedge-like binding ring 57, petty action iron core 53, back-up ring 65, back-up ring 65 had both covered little fixed core 54 and petty action iron core 53 connecting portions, play dustproof effect, can prevent that again petty action iron core 54 breaks away from slip shaft 52 under off-position.
The basic functional principle of self float type electromagnetic brake described in the utility model is: under off-position, friction lining 25 and the friction lining 26 on the buoyancy body pressing plate 27 that fixed core compression spring component 21 formed spring forces will move on the iron core 20 are pressed on respectively on the left and right sides end face of brake disc, this state is the braking mode to brake disc, set up the reasonable clearance " δ " between moving iron core 20 left sides and fixed core 19 right sides, at this moment, should to reach distance between little fixed core 32 left sides and buoyancy body pressing plate 27 right sides be half of above-mentioned " δ " by regulate adjusting screw rod 38, i.e. " δ/2 ".Small pressure spring 35 and adjustment screw rod 38 make fixed core 32 and moving iron core 31 light folder wedge-like binding rings 37, because wedge-like binding ring 37 is a material of greater hardness, its cross section is a triangle, and it is the not closed-loop that has breach 39.When this ring when axially being squeezed, shellfish radially can form Clamping force rapidly slip shaft, so after magnet coil 33 energisings, the moment that fixed core 32 and moving iron core 31 are inhaled mutually, can push wedge-like binding ring 37 fast between the taper hole of the right side of fixed core 32 and moving iron core 31, make it to lock firmly slip shaft 30, so, each parts of little electromagnet just are able to reliable location on slip shaft 30.Though coil winding 22 is switched on simultaneously with coil winding 33, but it is bigger than coil 33 power just because of coil 22, the former inductance L is big, resistance R is less, move the required time from high-speed double electromagnet: τ=L/R is apparent, it is more Zao than the action that big electromagnet occurs that little electromagnet begins the action meeting, in other words: when big electromagnet begins to move, little electromagnet is just on the tram that oneself is locked in slip shaft 30, at this moment, big electromagnet is under the electromagnetic force effect that coil 22 energisings produce, moving iron core 20 and fixed core 19 adhesives, make gap " δ " be tending towards 0, in this develops, when friction lining 25 leaves formation gap, brake disc 18 left sides, allocations stage clip 28 just will be pushed the right side to the buoyancy body pressing plate 27 that fixed core 19 connects firmly rapidly, thereby make friction lining 26 and friction lining 25 break away from the brake disc end face in opposite directions, and the three places distance that forms as shown in Figure 5 is the gap of " δ/2 ".As can be known, if odjective cause makes brake disc 18 produce longitudinal travel, then the little electromagnet of self-floating will give compensation to system from Fig. 5 structure.Now the unfavorable phenomenon that zone of reasonableness moves to left occurring with brake disc 18 is example, then when two winding coils 22 and 33 while dead electricity, the spring force of compression spring component 21 will be apace pressed to the left side of brake disc 18 with losing friction lining 25 on the moving iron core 20 of electromagnetic attraction, simultaneously the spring force of compression spring component 21 can make again and connect firmly the elastic resistance that overcomes allocations stage clip 28 at the buoyancy body pressing plate 27 on the fixed core 19 and move to left on slip shaft 30, so that friction lining 26 also is pressed on the end face of brake disc 18, be braking mode.At this moment, form a new gap " δ ' " between moving iron core 20 and the fixed core 19, buoyancy body pressing plate 27 has been pulled through a segment distance: δ-δ ' by adjustment screw rod 38 left with each element of little electromagnet on slip shaft.Like this when two electromagnet coil powers, it was on the axial location on a left side than last time that little electromagnet will be clamped in slip shaft 30 with wedge-like binding ring 37 location of having unclamped, so that the distance in friction lining 25 and brake disc 18 left sides equals the distance on friction lining 26 and brake disc right side substantially.
The basic functional principle of the described self float type electromagnetic brake of the utility model second embodiment is: under off-position, friction lining 48 and the friction lining 49 on the buoyancy body pressing plate 50 that fixed core stage clip 44 formed spring forces will move on the iron core 43 are pressed on respectively on the left and right sides end face of brake disc, this situation is that the braking mode of brake disc is promptly not only guaranteed the braking force of drg but also form the reasonable clearance " δ " that moves between iron core 43 left sides and fixed core 42 right sides, at this moment, should reach the right side of nut 64 as shown in Figure 9 and half that the distance between big fixed core stepped hole 61 outer faces is above-mentioned " δ ", i.e. " δ/2 " by regulating the nut of adjusting on the screw rod 58 64.Under the electromagnet off-position, the precompressed compression of fixed core stage clip 44 makes big fixed core 42 and buoyancy body pressing plate 50 left sides make petty action iron core 53 light folder wedge-like binding rings 57 by the transmission of pressure of pressing plate 59, because the cross section of wedge-like binding ring 57 is a triangle, and it is the not closed-loop that has breach.When this ring when axially being squeezed, then radially can form Clamping force rapidly at slip shaft, so after magnet coil 55 energisings, the moment that little fixed core 53 and petty action iron core 54 are inhaled mutually, can push wedge-like binding ring 57 fast between the taper hole 56 of the left side of fixed core 54 and moving iron core 53, make it to lock firmly slip shaft 52, so, each parts of little electromagnet just are able to reliable location on slip shaft 52.Though coil winding 45 is switched on simultaneously with coil winding 55, but it is bigger than coil 55 power just because of coil 45, the former inductance L is big, resistance R is less, move the required time from high-speed double electromagnet: τ=L/R is apparent, it is more Zao than the action that big electromagnet occurs that little electromagnet begins the action meeting, in other words: when big electromagnet begins to move, little electromagnet is just on the tram that oneself is locked in slip shaft 52, at this moment, big electromagnet is under the electromagnetic force effect that coil 45 energisings produce, moving iron core 43 and fixed core 42 adhesives, make gap " δ " be tending towards 0, in this develops, when friction lining 48 leaves formation gap, brake disc 41 left sides, allocations stage clip 60 just will be pushed the right side to the buoyancy body pressing plate 50 that fixed core 42 connects firmly rapidly, thereby make friction lining 48 and friction lining 49 break away from the brake disc end face in opposite directions, and the three places distance that forms as shown in Figure 9 is the gap of " δ/2 ".As can be known, if odjective cause makes brake disc 41 produce longitudinal travel, then the little electromagnet of self-floating will give compensation to system from Fig. 5 structure.Now the unfavorable phenomenon that zone of reasonableness moves to left occurring with brake disc 41 is example, then when two winding coils 55 and 45 while dead electricity, the spring force of compression spring component 44 will be apace pressed to the left side of brake disc 41 with losing friction lining 48 on the moving iron core 43 of electromagnetic attraction, simultaneously the spring force of compression spring component 44 can make again and connect firmly the elastic resistance that overcomes allocations stage clip 60 at the buoyancy body pressing plate 50 on the fixed core 42 and move to left on slip shaft 52, so that Friction disk 49 also is pressed on the end face of brake disc 41, be braking mode.At this moment, form a new gap " δ ' " between moving iron core 43 and the fixed core 42, buoyancy body pressing plate 50 pass through pressing plate 59 with each element of little electromagnet on slip shaft 52 to left dislocation one segment distance: δ-δ '.Like this when two electromagnet coil powers, it was on the axial location on a left side than last time that little electromagnet will be clamped in slip shaft 52 with wedge-like binding ring 57 location of having unclamped, so that the distance in friction lining 48 and brake disc 41 left sides equals the distance on friction lining 49 and brake disc right side substantially.
Claims (4)
1 one kinds of self float type electromagnetic brakes, comprise the elevator traction machine fixed main body, a brake disc and an electromagnet fixed core, moving iron core, the fixed core stage clip, coil winding, the guiding bearing pin, the serial connection screw rod, friction lining, the buoyancy body pressing plate, the allocations stage clip, the nut Anchor plate kit, the buoyancy body slip shaft, it is characterized in that: the slip shaft (30) at buoyancy body pressing plate (27) right-hand member place is provided with a small-sized electromagnet component, its petty action iron core (31), little fixed core (32) is realized free-running fit with slip shaft (30) respectively, be provided with coil winding (33) in the little fixed core (32), on the stepped hole (34) of little fixed core (32) left end and the slip shaft (30) between buoyancy body pressing plate (27) right-hand member, be provided with small pressure spring (35), the conical orifice (36) of petty action iron core (31) locates to be provided with wedge-like binding ring (37), adjust screw rod (38) and moving iron core (31), fixed core (32) realizes that the hole axle slack cooperates, and with buoyancy body pressing plate (27) right-hand member place thread connection, access the left side of fixed core (32) and the reasonable clearance (" δ/2 ") between buoyancy body pressing plate (27) right side in advance.
2 self float type electromagnetic brakes according to claim 1, its feature also is: the cross section of wedge-like binding ring (37) is triangle and has breach (39).
3 one kinds of self float type electromagnetic brakes, the fixed main body that comprises elevator traction machine, a brake disc and an electromagnet fixed core, moving iron core, the fixed core stage clip, coil winding, the guiding bearing pin, the serial connection screw rod, friction lining, the buoyancy body pressing plate, the buoyancy body slip shaft, it is characterized in that: the slip shaft (52) at left end place, buoyancy body pressing plate (50) top is provided with a small-sized electromagnet component, its petty action iron core (53), little fixed core (54) is realized free-running fit with slip shaft (52) respectively, be provided with coil winding (55) in the little fixed core (54), conical orifice (56) at petty action iron core (53) right-hand member locates to be provided with wedge-like binding ring (57), adjust screw rod (58) and fixed core (54) and realize hole axle slack cooperation, and with connect firmly thread connection at big fixed core (42) the left end place on buoyancy body pressing plate (50) top; In the axis hole (51) of slip shaft (52) left end section, be provided with and make buoyancy body pressing plate (50) go up the pressing plate (59) of slippage at slip shaft (52), compression spring (60), pressure regulating screw (63), pressure regulating screw (63) constitutes screw thread pair with the tapped bore of slip shaft (52), be provided with stage clip (62) in the stepped hole (61) on the little fixed core (54), preset adjust screw rod (58) left end section place nut and regulate pressure regulating screw (63) and the compression spring (60) of combination with it, form the right side of adjusting the attaching nut (64) that screw rod (58) locates and the reasonable clearance (" δ/2 ") between fixed core stepped hole (61) outer face greatly.
4 self float type electromagnetic brakes according to claim 3, its feature also is: the cross section of wedge-like binding ring (57) is a triangle, is the open loop that has fracture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620068766 CN2900459Y (en) | 2006-01-20 | 2006-01-20 | Self floating electromagnetic brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620068766 CN2900459Y (en) | 2006-01-20 | 2006-01-20 | Self floating electromagnetic brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2900459Y true CN2900459Y (en) | 2007-05-16 |
Family
ID=38084622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620068766 Expired - Fee Related CN2900459Y (en) | 2006-01-20 | 2006-01-20 | Self floating electromagnetic brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2900459Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562876A (en) * | 2012-02-17 | 2012-07-11 | 苏州通润驱动设备股份有限公司 | Electromagnetic caliper type brake |
| CN102653381A (en) * | 2011-03-02 | 2012-09-05 | 东芝电梯株式会社 | Adjusting method for brake switch |
-
2006
- 2006-01-20 CN CN 200620068766 patent/CN2900459Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102653381A (en) * | 2011-03-02 | 2012-09-05 | 东芝电梯株式会社 | Adjusting method for brake switch |
| CN102653381B (en) * | 2011-03-02 | 2014-10-15 | 东芝电梯株式会社 | Adjusting method for brake switch |
| CN102562876A (en) * | 2012-02-17 | 2012-07-11 | 苏州通润驱动设备股份有限公司 | Electromagnetic caliper type brake |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SUZHOU TONGRUN DRIVES CO., LTD. Free format text: FORMER NAME OR ADDRESS: CHANGSHU ELEVATOR TRACTION MACHINE FACTORY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: Hi tech Industrial Park, Changshu Economic Development Zone, Jiangsu Province: 215500 Patentee after: Suzhou Tongrun Drive Equipment Co., Ltd. Address before: No. 252, Ring North Road, Changshu, Jiangsu Province, 215500 Patentee before: Elector Hauler Plant Co., Ltd., Changshu City |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070516 Termination date: 20140120 |