CN101896418B - Supplementary braking thrust unit for brake - Google Patents
Supplementary braking thrust unit for brake Download PDFInfo
- Publication number
- CN101896418B CN101896418B CN200880120333.0A CN200880120333A CN101896418B CN 101896418 B CN101896418 B CN 101896418B CN 200880120333 A CN200880120333 A CN 200880120333A CN 101896418 B CN101896418 B CN 101896418B
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- CN
- China
- Prior art keywords
- sleeve pipe
- braking
- actuating cylinder
- push rod
- hydraulic actuating
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D49/00—Brakes with a braking member co-operating with the periphery of a drum, wheel-rim, or the like
- F16D49/16—Brakes with two brake-blocks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/06—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with radial effect
- B66D5/08—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with radial effect embodying blocks or shoes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/24—Operating devices
- B66D5/26—Operating devices pneumatic or hydraulic
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/02—Fluid pressure
- F16D2121/12—Fluid pressure for releasing a normally applied brake, the type of actuator being irrelevant or not provided for in groups F16D2121/04 - F16D2121/10
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/18—Electric or magnetic
- F16D2121/20—Electric or magnetic using electromagnets
- F16D2121/22—Electric or magnetic using electromagnets for releasing a normally applied brake
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2123/00—Multiple operation forces
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Braking Arrangements (AREA)
Abstract
A supplementary braking thrust unit for brake consists of a drive unit (1), a liquid pump (2) and a liquid storage reservoir (3) and a hydraulic cylinder (4) which are driven by the drive unit (1). The inlet of the liquid pump (2) is connected with the liquid storage reservoir (3), the outlet of liquid pump (2) is connected with the driving fluid cavity (5) of hydraulic cylinder (4), the non-driving fluid cavity (6) of hydraulic cylinder (4) is connected with the liquid storage reservoir (3), and the thrusting rod (7) of hydraulic cylinder (4) is used to connect with the drive arm (8) of brake part (9). Sleeve pipe (12) is arranged outside the thrusting rod (7), and acts on the mechanism which executes supplementary brake operation on the brake part (9). The sleeve pipe (12) is extended outwards as the pushing bar (7) extends outwards, and the sleeve pipe (12) and the thrusting rod (7) can slide relatively one to the other as the thrusting rod (7) retracts inward. Said supplementary braking thrust unit also comprises a drive part to impel the sleeve pipe (12) to extend outwards and to retract.
Description
Technical field
The present invention relates to drg, the pusher that is specifically related to drg improves.
Background technology
Drg mainly is made up of brake portion and pusher or thrust unit.Open day be that the patent documentation that August 22, publication number in 2007 are CN2937582 discloses (application number 200620050535.0) a kind of " variable force driving unit that is used for drg ", this pusher is connected with actuating arm hinge formula in the brake portion by its push rod and acts on brake portion, makes brake portion realize mode of operation.The structure of this pusher comprises actuating device and the liquid pump that driven by this actuating device and hold liquid case, hydraulic actuating cylinder, the import of liquid pump with hold the liquid case and communicate, the liquid delivery side of pump communicates with the driving sap cavity of hydraulic actuating cylinder, the non-driving sap cavity of hydraulic actuating cylinder with hold the liquid case and communicate.As be applied to normally closed when braking, when the push rod of pusher extend out to the position that sets, and the braking of releasing normally off, behind push rod indentation return, namely recover the normally closed braking of brake portion, this pusher only has and satisfies the operating function that brake portion produces disposable braking.
Summary of the invention
The purpose of this invention is to provide a kind of pusher that makes drg realize stacked braking, this stacked braking pusher not only can satisfy the brake portion of normally closed brake and realize braking, and after brake portion is realized braking, also have and satisfy the operating function that realizes stacked braking.
Technical scheme of the present invention describes referring to Fig. 1 and Fig. 2, this stacked braking pusher comprises actuating device 1 and the liquid pump 2 that driven by this actuating device and hold liquid case 3, hydraulic actuating cylinder 4, the import of liquid pump 2 with hold liquid case 3 and communicate, the outlet of liquid pump 2 communicates with the driving sap cavity 5 of hydraulic actuating cylinder, the non-driving sap cavity 6 of hydraulic actuating cylinder with hold liquid case 3 and communicate, the piston rod of hydraulic actuating cylinder 4 is that push rod 7 outer ends act on its brake control lever 10 for being connected with the actuating arm 8 of brake portion 9, make brake portion realize mode of operation, improved structure is, described push rod (7) is provided with sleeve pipe (12), described sleeve pipe (12) acts on the mechanism that brake portion is carried out stacked braking, and push rod (7) can drive sleeve pipe (12) when protruding protruding, inwardly during indentation, sleeve pipe (12) can produce relative slip with push rod (7) at push rod (7); And described stacked braking pusher also comprises for drive sleeve and stretches out drive part with indentation.
Alternatively, outer section of described sleeve pipe (12) is positioned at the outside of holding liquid case (3), and the inner segment of sleeve pipe (12) is positioned at the non-driving fluid chamber (6) of hydraulic actuating cylinder (4); Described drive part comprises the calutron (13) that acts on sleeve pipe (12), calutron (13) comprises magnet coil and inhales piece (14), magnet coil is connected with storage tank (4), and suction piece (14) is connected in sleeve pipe (12) thereby goes up can be mobile with sleeve pipe (12).Inhaling piece and magnet coil is used.
With the background technology ratio, the technique effect that the present invention has is:
1, because the present invention is provided with the sleeve pipe 12 that acts on stacked braking mechanism 11, and be provided with the calutron 13 that acts on sleeve pipe 12, push rod 7 extend out to the position that sets and drive sleeve pipe 12 stretch out after, to control the releasing of normally closed braking and stacked braking, push rod 7 indentations are resetted after the normally closed braking, when needs carry out stacked braking, by cutting off the power supply of calutron 13, make sleeve pipe 12 indentations and control the realization of stacked braking, be this stacked braking pusher under the situation of the unlatching of satisfying normally closed braking and the normally closed braking that resets, also have the independent operating function that satisfy to realize stacked braking.
2, because this stacked braking pusher is except having releasing and recovering the braking of brake portion, also has the independent operating function of carrying out stacked braking, therefore, under the operating mode of frequent braking, can the braking of brake portion be removed and recovery by the flexible of independent operation push rod 7, to satisfy the needs of frequent damped condition, the braking more reliable and more stable as needs, especially ought be braked object is in and does not need frequently to brake or be in to knock off, during suspended state, can operate calutron 13 of the present invention more separately, and carry out stacked braking by the indentation of sleeve pipe 12, be braked object at the insensitivity of braking under the quiescent conditions with increase, can effectively take precautions against because of strong wind etc. to being braked influence or the destruction that object might cause.
3, because the braking that this stacked braking pusher has releasing and recovers brake portion, and the operating function of carrying out stacked braking, therefore, use the present invention and can satisfy the braking of drg realization brake portion and the requirement of stacked braking, make a normally closed brake have braking function and the effect of two normally engaged brakes.
4, can satisfy the braking of drg realization brake portion and the requirement of stacked braking owing to use the present invention, make a normally closed brake have braking function and the effect of two normally engaged brakes, therefore, use drg of the present invention for two similar drgs, can save consumptive material, reduce manufacturing cost and use cost, cut down the consumption of energy, and can reduce required space is installed.
5, because the present invention adopts cut-out calutron power supply to realize stacked braking, therefore have the advantages that brake response time is short, retro-speed is fast, be conducive to raising and be braked the needed emergency safety braking of object.
The present invention is further described below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is the present invention program's constructional drawing;
Fig. 2 is applied to an example views of drg for the present invention;
Fig. 3 be among Fig. 2 A to the structure enlarged drawing;
Fig. 4 is a kind of mode of operation view of application example shown in Figure 2, has showed that the normally closed braking of drg brake portion and stacked braking all locate the state of removing;
Fig. 5 is another mode of operation view of application example shown in Figure 2, showed the brake portion normally closed braking that resets, but its stacked braking is still located not braking mode;
Fig. 6 is applied to another example views of drg for the present invention.
The specific embodiment
Stacked braking pusher according to drg of the present invention is described below.
Fig. 1 is a kind of constructional drawing of the present invention program.This stacked braking pusher comprises actuating device 1 and the liquid pump 2 that driven by this actuating device and hold liquid case 3, hydraulic actuating cylinder 4, the import of liquid pump 2 with hold liquid case 3 and communicate, the outlet of liquid pump 2 communicates with the driving sap cavity 5 of hydraulic actuating cylinder, the non-driving sap cavity 6 of hydraulic actuating cylinder with hold liquid case 3 and communicate, the piston rod of hydraulic actuating cylinder 4 is that push rod 7 outer ends act on its brake control lever 10 for being connected with the actuating arm 8 of brake portion 9, make brake portion realize mode of operation, wherein, described push rod 7 is provided with sleeve pipe 12, described sleeve pipe 12 acts on the mechanism that brake portion is carried out stacked braking, and it is protruding that push rod 7 can drive sleeve pipe 12 when protruding, when the inside indentation of push rod 7, sleeve pipe 12 can produce relative slip with push rod 7; And described stacked braking pusher also comprises for drive sleeve and stretches out drive part with indentation.
As shown in FIG., when push rod 7 extend out to when setting the position, act on brake control lever 10 by actuating arm 8 normally closed braking is removed, stacked braking mechanism 11 stacked brakings are removed, after push rod 7 indentations, namely recover normally closed braking.
As shown in fig. 1, outer section of sleeve pipe 12 is positioned at the outside of holding liquid case 3, the inner segment of sleeve pipe 12 is positioned at the non-driving fluid chamber 6 of hydraulic actuating cylinder 4, the drive part of this stacked braking pusher comprises the calutron 13 that acts on sleeve pipe 12, calutron 13 comprises magnet coil and inhales piece 14, implement structure as shown in the figure, described hydraulic actuating cylinder 4 is arranged on and holds in the liquid case 3, both are combined as an integral body, magnet coil then is connected with the tank wall of storage tank 4, inhales piece 14 between magnet coil and piston ring 16, and is connected on the sleeve pipe 12, can move with sleeve pipe 12, inhale piece 14 and be used with magnet coil; In addition, described sleeve pipe has a disk-like structure 12 ' on 12 outer ends, be beneficial to stacked braking mechanism 11 in thrust arm 18 contacting when controlling; In the described storage tank 4 air chamber is arranged, to eliminate the vacuum state in the storage tank 3, be beneficial to flowing of liquid dielectric in the pusher working process.
Need to prove that the drive part here is not limited to said structure.For example, sleeve pipe 12 can be driven by corresponding structure by motor, and this motor can be positioned at the outside of hydraulic actuating cylinder.
In implementing process of the present invention, hydraulic actuating cylinder 4 can be arranged on and hold in the liquid case 3, and both are combined as an integral body, as Fig. 1 to shown in Figure 6, this kind characteristics such as little that form is set has compact conformation, take up room.In addition, hold liquid case 3 and can be arranged to split typely separately, realize being communicated with accordingly by pipeline and hydraulic actuating cylinder 4.When hydraulic actuating cylinder 4 is arranged on when holding in the liquid case 3, the magnet coil of calutron should with hold liquid case 3 and be connected; Be arranged to separately when split type when holding liquid case 3, the magnet coil of calutron should pass through attaching parts 15 and be connected with the casing wall of hydraulic actuating cylinder 4, magnet coil or be connected on other members;
Fig. 2 is applied to an example of drg for the present invention.In this example, the lower end of pusher is that coupling end is connected with mounting or with other connecting element, and both this pusher had and mounting or the coupling end that is connected with other connecting element, was horizontal type structure.
Fig. 6 is applied to another example of drg for the present invention.In this example, the right-hand member of pusher is that coupling end is connected with the extension arm 21 hinge formulas of a brake control lever 10 in the brake portion, be that this pusher has the coupling end that is connected with the extension arm 21 of a brake control lever 10 in the brake portion, actuating arm 8 in the brake portion is the extension arm of another brake control lever 10 in the brake portion, is vertical structure.
Actuating device 1 of the present invention can be dissimilar actuating devices, as shown is electrical motor, and liquid pump 2 is centrifugal pump, first outside, the plunger pump that also can adopt electromagnet 2 and liquid pump to be combined as a whole.
A concrete working process of this stacked braking pusher is described as follows referring to Fig. 2, Fig. 4, Fig. 5:
When needs are braked, cut off the power supply of actuating device 1, liquid pump 2 shuts down, liquid in the driving fluid chamber 5 of hydraulic actuating cylinder 4 namely is in the non-pressure state, braking force effect because of drg normally closed braking mechanism 17, piston rod is push rod 7 indentations and resetting, piston ring 16 falls thereupon, in the non-driving fluid chamber 6 of the non-pressure liquid phegma cylinder pressure 4 in the storage tank 3, liquid in the driving fluid chamber 5 of hydraulic actuating cylinder then refluxes to holding liquid case 3 via the liquid pump, two brake control levers 10 inwardly produce indentations for the first time, the drg normally closed braking that namely resets; At this moment, because of calutron 13 energisings, the suction piece 14 of calutron 13 is still kept the location by adhesive, and the propelling rod 20 of sleeve pipe 12 and stacked braking mechanism 11 still locates to stretch out state, makes stacked braking member 11 still be in the not braking mode of accumulation of energy, as shown in Figure 5; When being braked object and being in the operating mode of frequent braking, can operate separately push rod 7 stretch realize the unlatching of normally closed braking and the normally closed braking that resets;
When the needs stacked braking, by cutting off the operation of calutron 13 power supplys, the suction of inhaling piece 14 is disengaged, the member 11 processed that superposes namely releases energy, make propelling rod 20 indentations, thrust arm 18 is namely pressed the graphic clockwise direction bottom around its adapter shaft 19, sleeve pipe 12 is indentation, and drive to inhale piece 14 and leave the magnet coil of calutron 13 and fall, the energy accumulating state to stacked braking mechanism 11 is namely removed in the indentation of sleeve pipe 12, state as depicted in figs. 1 and 2, the energy that stacked braking mechanism 11 discharges makes the other end of thrust arm 18 act on the brake control lever 10 of brake portion, make two brake control levers, 10 inside indentations or produce the trend of inside indentation and implement stacked braking, thereby this stacked braking pusher is realized the operating function of stacked braking.After drg resets normally closed braking, realize stacked braking by the independent operation of cutting off calutron 13 power supplys again, make normally closed braking and stacked braking all locate braking mode, make the braking that is braked object more reliable and more stable.
This specification sheets has been described two kinds of examples that the present invention is applied to drg; equally also there are other application examples; when being applied to the drg of different structure form; the present invention will have corresponding distressed structure, and all modification structures on the technical solution of the present invention basis all belong to protection scope of the present invention.
Claims (4)
1. the stacked braking pusher of drg, comprise the liquid pump (2) that holds liquid case (3), hydraulic actuating cylinder (4), actuating device (1) and driven by this actuating device, the import of liquid pump (2) with hold liquid case (3) and communicate, the outlet of liquid pump (2) communicates with the driving sap cavity (5) of hydraulic actuating cylinder, the non-driving fluid chamber (6) of hydraulic actuating cylinder with hold liquid case (3) and communicate, push rod (7) outer end of hydraulic actuating cylinder (4) is used for being connected with the actuating arm of brake portion, it is characterized in that:
Described push rod (7) is provided with sleeve pipe (12), described sleeve pipe (12) acts on the mechanism that brake portion is carried out stacked braking, and push rod (7) can drive sleeve pipe (12) when protruding protruding, and inwardly during indentation, sleeve pipe (12) can produce relative slip with push rod (7) at push rod (7); And
Described stacked braking pusher also comprises for drive sleeve and stretches out drive part with indentation;
Described drive part comprises the calutron (13) that acts on sleeve pipe (12), calutron (13) comprises magnet coil and inhales piece (14), magnet coil with hold liquid case (3) and be connected, inhaling that piece (14) is connected in sleeve pipe (12) thereby goes up can be mobile with sleeve pipe (12).
2. according to the stacked braking pusher of the described drg of claim 1, it is characterized in that:
Outer section of described sleeve pipe (12) is positioned at the outside of holding liquid case (3), and the inner segment of sleeve pipe (12) is positioned at the non-driving fluid chamber (6) of hydraulic actuating cylinder (4).
3. according to the stacked braking pusher of the described drg of claim 2, it is characterized in that:
The magnet coil of described calutron (13) or be connected with hydraulic actuating cylinder (4) by attaching parts (15), or be connected on other members.
4. according to the stacked braking pusher of each described drg among the claim 1-3, it is characterized in that:
Described sleeve pipe (12) top is provided with a disk-like structure (12 ').
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200880120333.0A CN101896418B (en) | 2007-12-19 | 2008-12-19 | Supplementary braking thrust unit for brake |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710192660.4 | 2007-12-19 | ||
| CN 200710192660 CN101463873A (en) | 2007-12-19 | 2007-12-19 | Stacked braking pusher of brake |
| CN200880120333.0A CN101896418B (en) | 2007-12-19 | 2008-12-19 | Supplementary braking thrust unit for brake |
| PCT/CN2008/002035 WO2009089683A1 (en) | 2007-12-19 | 2008-12-19 | Supplementary braking thrust unit for brake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101896418A CN101896418A (en) | 2010-11-24 |
| CN101896418B true CN101896418B (en) | 2013-07-10 |
Family
ID=40804595
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710192660 Pending CN101463873A (en) | 2007-12-19 | 2007-12-19 | Stacked braking pusher of brake |
| CN200880120333.0A Active CN101896418B (en) | 2007-12-19 | 2008-12-19 | Supplementary braking thrust unit for brake |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710192660 Pending CN101463873A (en) | 2007-12-19 | 2007-12-19 | Stacked braking pusher of brake |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN101463873A (en) |
| WO (1) | WO2009089683A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106918435B (en) * | 2017-04-21 | 2023-04-07 | 中国空气动力研究与发展中心高速空气动力研究所 | Integrated impact cylinder device |
| CN109229134B (en) * | 2018-11-14 | 2024-05-07 | 粤水电轨道交通建设有限公司 | Bidirectional emergency anti-slip braking device for electric locomotive |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5244060A (en) * | 1991-05-09 | 1993-09-14 | Hitachi, Ltd. | Elevator apparatus |
| CN2216061Y (en) * | 1993-09-25 | 1995-12-27 | 哈尔滨铁路分局装卸管理所 | Double-stage double-moment hydraulic pusher brake |
| CN2937582Y (en) * | 2006-04-05 | 2007-08-22 | 长沙三占惯性制动有限公司 | Variable force driving unit for brake |
| CN101086283A (en) * | 2006-06-05 | 2007-12-12 | 谢兴云 | Thruster of brake |
| JP4160782B2 (en) * | 2002-05-29 | 2008-10-08 | 株式会社日立製作所 | Electromagnetic brake device for elevator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101319690A (en) * | 2007-06-08 | 2008-12-10 | 谢兴云 | Variable force pusher used for brake |
-
2007
- 2007-12-19 CN CN 200710192660 patent/CN101463873A/en active Pending
-
2008
- 2008-12-19 WO PCT/CN2008/002035 patent/WO2009089683A1/en active Application Filing
- 2008-12-19 CN CN200880120333.0A patent/CN101896418B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5244060A (en) * | 1991-05-09 | 1993-09-14 | Hitachi, Ltd. | Elevator apparatus |
| CN2216061Y (en) * | 1993-09-25 | 1995-12-27 | 哈尔滨铁路分局装卸管理所 | Double-stage double-moment hydraulic pusher brake |
| JP4160782B2 (en) * | 2002-05-29 | 2008-10-08 | 株式会社日立製作所 | Electromagnetic brake device for elevator |
| CN2937582Y (en) * | 2006-04-05 | 2007-08-22 | 长沙三占惯性制动有限公司 | Variable force driving unit for brake |
| CN101086283A (en) * | 2006-06-05 | 2007-12-12 | 谢兴云 | Thruster of brake |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101463873A (en) | 2009-06-24 |
| WO2009089683A1 (en) | 2009-07-23 |
| CN101896418A (en) | 2010-11-24 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: CHANGSHA SANZHAN INERTIAL BRAKING CO., LTD. Effective date: 20120821 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20120821 Address after: Tongzi City, Hunan province 410205 Changsha Po No. 229 West Lugu International Industrial Park Applicant after: Changsha Sanzhan Inertia Brake Co., Ltd. Address before: Tongzi City, Hunan province 410205 Changsha Po No. 229 West Lugu International Industrial Park Applicant before: Xie Xingyun |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |