CN202790244U - Brake cylinder for braking clamp unit of railway vehicle - Google Patents
Brake cylinder for braking clamp unit of railway vehicle Download PDFInfo
- Publication number
- CN202790244U CN202790244U CN201220457291.3U CN201220457291U CN202790244U CN 202790244 U CN202790244 U CN 202790244U CN 201220457291 U CN201220457291 U CN 201220457291U CN 202790244 U CN202790244 U CN 202790244U
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- adjusting nut
- master cylinder
- bearing bracket
- piston
- cylinder body
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Abstract
The utility model provides a brake cylinder for braking a clamp unit of a railway vehicle. The brake cylinder comprises a cylinder cover and a cylinder body, wherein the cylinder body comprises a piston which is arranged at the top of the cylinder body and is provided with a wedged body, a bearing bracket which is arranged at the lower part of the piston and is matched with the piston, and a brake disc which is adjacent to the bearing bracket; a piston resetting spring is arranged between the piston and the bearing bracket; and a resetting spring is arranged between the inner wall of the cylinder body and the bearing bracket. The brake cylinder for braking the clamp unit of the railway vehicle disclosed by the utility model has the advantages that a module is simple, the size and the weight are obviously reduced, the maintenance is simple and convenient, and the extensive application is convenient.
Description
Technical field
The utility model relates to the braking device in the rail vehicle braking system, particularly a kind of compact type master cylinder for the rail vehicle braking nipper units.
Background technique
Usually, the brake clamp cellular installation of rail vehicle braking system by accepting the instruction of braking system, is finished service braking and mitigation capability on bogie.And master cylinder is the core component of brake clamp unit, adjusts for generation of braking force, responsible gap.
Nipper units generally adopts or 4 lifting modes to be installed on the bogie at 3, and master cylinder is converted into power to air pressure by piston, by lever power is amplified transmission again, so that braking force to be provided.
For the parking brake function, adopt the mode of spring energy storage device to realize more.Apply parking brake when Parking Brake Cylinders is discharged pressurized air, be filled with pressurized air, parking brake is alleviated.When vehicle does not have pressurized air and needs to move, need to alleviate parking brake by hand relieving device.
Aspect mounting type, prior art generally adopts three-point suspension or four-point suspension mode.The two needs specific master cylinder, mounting type underaction.
Aspect the transfer mode of power, existing nipper units adopts one-level to amplify mode mostly.Therefore it is larger to take up room.
Aspect the principle of parking brake, more existing nipper units adopts the mode of ratchet and clutch, leading screw interoperation to control and parks, alleviation and hand relieving function.Be difficult to solve the contradiction of what and parking brake power size of taking up room.
The model utility content
The purpose of this utility model is: it is simple to design a kind of construction module, and volume, weight significantly reduce, and keeps in repair easy.In order to achieve the above object, the master cylinder for the rail vehicle braking nipper units of the present utility model is like this design:
A kind of master cylinder for the rail vehicle braking nipper units, it comprises cylinder cap and cylinder body, wherein said cylinder body comprises: the piston that is arranged on described cylinder body top, the bearing bracket of working in coordination with described piston that is arranged on described piston bottom, brake disc with the adjacent setting of described bearing bracket, be provided with the piston return spring between described piston and the bearing bracket, be provided with return spring between the inwall of described cylinder body and the bearing bracket.
Preferably, described cylinder body further comprises: the leading screw that is arranged on described cylinder body middle part, the front regulator of working in coordination with this leading screw forms and rear regulator composition, forms the guide springs of adjacent setting, the adjacent setting with described bearing bracket of described guide springs with described front regulator.
Preferably, described front regulator forms and comprises: head and the tail are interconnective front adjustment spring successively, front adjusting nut, and front adjustment toothholder and front adjusting sleeve, described front adjusting nut and described leading screw are worked in coordination.
Preferably, described rear regulator forms and comprises: adjust afterwards spring, and rear adjustment toothholder and rear adjusting nut, described rear adjusting nut and described leading screw are worked in coordination.
Preferably, the afterbody of described rear adjustment toothholder is fixedly connected with a backstop, and the inwall of described cylinder body is provided with a spacing back-up ring that cooperatively interacts with described backstop.
Preferably, described cylinder body also comprises: be arranged on the first gear clutch and second gear clutch of described cylinder base, described the first gear clutch links to each other with described rear adjustment spring, and described the second gear clutch links to each other with described front adjustment spring.
Preferably, the adjacent setting with described guide springs of described front adjusting sleeve.
Preferably, described brake disc is arranged between described front adjusting sleeve and the described bearing bracket.
Master cylinder construction module for the rail vehicle braking nipper units of the present utility model is simple, and volume, weight significantly reduce, and keeps in repair easyly, also is convenient to simultaneously expanded application.
Description of drawings
Below in conjunction with accompanying drawing the master cylinder for the rail vehicle braking nipper units of the present utility model is further detailed.
Fig. 1 is the structural representation of the master cylinder for the rail vehicle braking nipper units of the present utility model.
Fig. 2 shows the profile of master cylinder of the present utility model.
Fig. 3 shows the schematic representation that expands to the master cylinder of parking brake function.
Fig. 4 and Fig. 5 show the brake clamp unit that the utility model master cylinder four-point suspension forms.
Fig. 6 shows the four-point suspension of the another kind of form of the utility model master cylinder.
Fig. 7 and Fig. 8 show a kind of application form of compact type master cylinder of the present utility model and the combination of three-point suspension nipper units.
Embodiment
Need to prove, " left side " of the following stated, " right side ", " on ", D score refers to the direction in the accompanying drawing, and " interior ", " outward " refer to respectively in the accompanying drawing towards or away from the direction of geometrical center of the present utility model.
Referring to Fig. 1, described cylinder body comprises: the piston 7 that is arranged on described cylinder body top, the bearing bracket 12 of working in coordination with described piston 7 that is arranged on described piston 7 bottoms, brake disc 11 with described bearing bracket 12 adjacent settings, be provided with piston return spring 8 between described piston 7 and the bearing bracket 12, be provided with return spring 5 between the inwall of described cylinder body and the bearing bracket 12.Inner at master cylinder, the top of being connected with bearing bracket by piston return spring 8 with the brake piston 7 of voussoir connects.The front end of bearing bracket is connected with cylinder body by return spring 5.
Described cylinder body 90 further comprises: the leading screw 2 that is arranged on described cylinder body middle part, the front regulator of working in coordination with this leading screw 2 forms and rear regulator composition, form the guide springs 10 of adjacent setting with described front regulator, described guide springs 10 and described bearing bracket 12 adjacent settings.
Described front regulator forms and comprises: head and the tail are interconnective front adjustment spring 3 successively, front adjusting nut 4, and front adjustment toothholder 6 and front adjusting sleeve 9, described front adjusting nut 4 is worked in coordination with described leading screw 2; Described rear regulator forms and comprises: adjust afterwards spring 13, rear adjustment toothholder 14 and rear adjusting nut 17, described rear adjusting nut 17 is worked in coordination with described leading screw 2, the afterbody of described rear adjustment toothholder 14 is fixedly connected with a backstop 16, and the inwall of described cylinder body is provided with a spacing back-up ring 15 that cooperatively interacts with described backstop 16.Described front adjusting sleeve 9 and described guide springs 10 adjacent settings, described brake disc 11 is arranged between described front adjusting sleeve 9 and the described bearing bracket 12.
Described cylinder body 90 also comprises: be arranged on the first gear clutch Z1 that is made of rear adjusting nut and rear adjustment toothholder of described cylinder interior and the second gear clutch Z2 that is made of front adjusting nut and front adjustment gear ring, described rear adjusting nut links to each other with described rear adjustment spring 13, and described front adjusting nut links to each other with described front adjustment spring 3.Bearing bracket 12 is inner to withstand front adjusting sleeve 9 with guide springs 10, and leaves circular groove in front adjusting sleeve 9 and carriage inside, and placement brake disc 11, brake disc be with key, and can not rotate in groove under the clamped condition.Front adjusting sleeve 9 ends and front adjustment toothholder 6 fits, front adjustment toothholder 6 and the front adjusting nut 4 clutch Z2 that partners.In the front adjusting nut 4 screw thread is arranged, are connected connection with leading screw.The clutch for clutch control of Z2 front adjusting nut 4 and leading screw 2 whether can relatively rotate.Front adjustment spring 3 is used for keeping the closed state of front adjusting nut between bearing bracket and front adjusting nut.
Whether in rear adjustment toothholder 14, rear adjusting nut cooperates formation clutch Z1 with rear adjustment toothholder under the effect of rear adjustment spring 13, be used for can rotating between the rear adjusting nut 17 of control and the leading screw.There is screw thread rear adjusting nut inside, is connected with leading screw.At rear adjustment toothholder rear portion backstop 16 has been installed, spacing back-up ring 15 has been installed on the cylinder body.The distance of the two has determined effect stroke A.
At the leading screw head, the support of being responsible for transmission braking force is installed turns 1.
When using master cylinder braking of the present utility model, be filled with the pressurized air pushing piston, the drive voussoir changes the direction of transfer of power and amplifies, the one-level that is implemented in master cylinder inside is amplified, master cylinder passes to lever to the braking force of amplifying through inner voussoir, regulate final active force by lever ratio, realize the effect that secondary amplifies.Therefore, master cylinder of the present utility model has obviously reduced volume.
Master cylinder of the present utility model also has automatic backlash adjustment function simultaneously, and the working procedure of automatic backlash adjustment is described as follows:
1 without the alleviation of the master cylinder under abrasion state principle
1.1 alleviate the position
After brake cylinder exhaust, master cylinder namely is in relieved state.This moment, piston 7 was arrived the top of master cylinder by the top under the effect of piston return spring.Bearing bracket 12 is return under the effect of return spring 5.The first gear clutch Z1 and the second gear clutch Z2 also are in engagement respectively under the effect of rear adjustment spring 13 and front adjustment spring 3.Because guide springs 10 active forces are greater than front adjustment spring 3.So between brake disc 11 and front adjusting sleeve 9, have the gap.At this moment, the gap between backstop 16 and the spacing back-up ring 15 is called the effect stroke.
1.2 effect stroke
When pressure air entered piston 7 top, piston 7 can move down, and by the bearing above the voussoir (not shown) surface pushing shaft support bracket 12, it is mobile at axial direction along leading screw 2 to drive bearing bracket 12.The first gear clutch Z1 and the second gear clutch Z2 keep engagement in this process, can not relatively rotate with leading screw 2.Because brake lining does not have and brake disc 11 applyings in the effect stroke, so guide springs 10 has been born the active force that leading screw moves.The transfer route of power is: piston 7 → bearing bracket 12 → guide springs 10 → front adjusting sleeve 9 → front adjustment toothholder 6 → front adjusting nut 4 → leading screw 2.Meanwhile, under the effect of rear adjustment spring 13, the first gear clutch Z1 keeps engagement.Regulator formed mobile together after leading screw 2 drove.When the backstop 16 on being positioned at rear adjustment toothholder 14 contacted with spacing back-up ring 15, the effect stroke finished.
1.3 springing stroke
Along with pressure air continue be filled with, piston 7 continues to move down.Through the effect stroke, brake lining and brake disc 11 are just fitted.The resistance that piston 7 produces allows power that leading screw 2 moves and brake lining and brake disc 11 bring has overcome the power of guide springs 10 together, relies on guide springs 10 can't provide enough locomotivities to leading screw 2 again.Therefore so that bearing bracket 12 clamps brake disc 11.Adjusting nut 4 and front adjustment toothholder 6 have produced gap k with front adjusting sleeve 9 simultaneously under the effect of front adjustment spring 3.Power transmittance process in the springing stroke is: piston 7 → bearing bracket 12 → brake disc 11 → front adjusting sleeve 9 → front adjustment toothholder 6 → front adjusting nut 4 → leading screw 2.In this process, the second gear clutch Z2 keeps engagement, and the first gear clutch Z1 throws off.Brake disc 11 is clamped by bearing bracket 12, can't rotate, and under the effect of key on the brake disc 11, rear adjusting nut 17 can't relatively rotate with leading screw.Therefore under the effect of leading screw 2, adjust spring 13 after the rear adjusting nut compression, moved springing stroke.Springing stroke finishes.
1.4 without the alleviation process under the abrasion state
When brake cylinder exhaust, along with end pressure on the piston 7 reduces, master cylinder begins to alleviate.Fully opposite with braking process without the alleviation process under the abrasion state.
2 have the release of brake principle under the abrasion state
In braking process, along with continuing of period of braking, wearing and tearing in various degree will occur in brake disc 11 and brake lining.In order to guarantee that brake lining is relative with the gap of brake disc 11 fixing after alleviating.Master cylinder need to have gap adjustment function.Release of brake process under the abrasion state is being arranged and slightly having any different without the release of brake process under the abrasion state.Be mainly reflected in the process of adjusting in the gap.
In braking process, there is the abrasion operating mode to be divided into relieved state, effect stroke, springing stroke and abrasion stroke four parts.Wherein relieved state, effect stroke and springing stroke with without in full accord under the abrasion state, detailed process reference 1.1 to 1.3.
2.1 abrasion stroke
When abrasion produced, because the pressure-acting on piston 7 tops, piston 7 moved down, and ordered about bearing bracket 12 and clamped brake disc 11, adjusted toothholder 6 and front adjusting nut 4 before promoting, and drove leading screw 2 and had moved forward the abrasion stroke.The power transmission of this process is consistent with 1.3 springing stroke Path of Force Transfer.The second gear clutch Z2 engagement in this process, the first gear clutch Z1 opens.Rear adjusting nut 17 continues a mobile abrasion stroke.So far, braking process finishes.
There is the alleviation process under the abrasion state different from the alleviation process of nothing abrasion.Flexible return stroke, wear compensation stroke and effect stroke return stroke.
2.2 return elastically stroke
When brake cylinder exhaust, piston 7 upper pressure reduce, and master cylinder has begun the alleviation process.Under the impact of the active force of brake disc 11 and brake lining, at first finish returning elastically stroke.The bang path that returns elastically graduated application power is consistent with 1.3 springing stroke Path of Force Transfer: piston 7 → bearing bracket 12 → brake disc 11 → front adjusting sleeve 9 → front adjustment toothholder 6 → front adjusting nut 4 → leading screw 2.After elastic strain recovered, under the effect of guide springs 10, eliminated in the gap between front adjustment toothholder 6 and the front adjusting sleeve 9, and front adjusting sleeve 9 produces with the gap of brake disc 11.
Meanwhile, rear adjusting nut 17 has been replied resiliently deformable.The second gear clutch Z2 keeps engagement.Returning elastically stroke finishes.
2.3 rear adjusting nut wear compensation
Wear compensation has the rear adjusting nut 17 of process and front adjusting nut 4 to realize with respect to the movement of leading screw 2 respectively.Therefore this process has two actions.
After returning elastically the stroke end, under the effect of guide springs 10, brake disc 11 is no longer clamped by bearing bracket 12 and front adjusting sleeve 9.Brake disc 11 cooperates with rear adjusting nut 17 by key, and then there is the abrasion gap in adjusting nut 17 with rear adjustment toothholder 14 after returning elastically stroke.Therefore, rear adjusting nut 17 drives brake disc 11 rotations under the effect of rear adjustment spring 13, and again meshes with rear adjustment toothholder 14 after leading screw 2 has moved the abrasion gap.Produce the abrasion gap between rear adjusting nut 17 and the front adjusting sleeve 9.
The first gear clutch Z1 and the second gear clutch Z2 kept engagement when this process finished.
2.4 effect stroke return stroke
When after after adjusting nut 17 wear compensations finish, the first gear clutch Z1 and the second gear clutch Z2 are closed.Under the effect of return spring 5, adjusting sleeve 9 before bearing bracket 12 drives, promote adjusting nuts cover 18 by back-up ring 17 because the power of front adjustment spring 3 and guide springs 10 is so that the second gear clutch Z2 is closed, like this before adjusting nut 4 meeting drive leading screws 2 be moved to the left together.
Adjusting nut 17 after rear adjustment spring 13 compresses is so that clutch Z1 meshes, and the movement of leading screw 2 also promotes rear regulator composition and together is moved to the left, until spacing back-up ring 15 is eliminated with the gap of rear adjustment toothholder 14.The return stroke of effect stroke finishes.
In this process, the first gear clutch Z1 and the second gear clutch Z2 mesh all the time, do not have part wrapping wire thick stick 2 to rotatablely move.Effect stroke after this process finishes between backstop 16 and the spacing back-up ring 15 rebulids.
2.5 front adjusting nut wear compensation
After the effect stroke returned end, rear adjustment toothholder 14 reclined with spacing back-up ring 15, can not continue to be moved to the left.The first gear clutch Z1 remains closed under the effect of rear adjustment spring 13, has therefore limited moving to left of leading screw 2.But return spring 5 is given 12 1 power left of bearing bracket at this moment, and the front toothholder 6 of adjusting of adjusting sleeve 9 promotions is moved to the left before driving.Moving to left of leading screw 2 is limited, and original state the second gear clutch Z2 is closed, and therefore front adjusting nut 4 is forced to and front adjustment toothholder 6 breaks away from, and the second gear clutch Z2 is opening in a flash.Owing to the promotion of front adjustment spring 3, at once wrapping wire thick stick 2 rotations of front adjusting nut 4 also are moved to the left until again mesh with front adjustment toothholder 6 after opening.So process is reciprocal, until return spring 5 will act on the abrasion gap elimination that the return stroke end produces, the power of return spring 5 and spacing back-up ring 15 are given the mutual balance of power of front adjusting sleeve 9 by rear adjusting nut 17.The wear compensation effect finishes, and piston 7 resets.
Having under the abrasion release of brake operating mode, than having extended the abrasion stroke before the braking, played the effect of automatic wear compensation after alleviating.
Fig. 2 shows the profile of master cylinder of the present utility model, this master cylinder compact structure, and boundary dimension is small and exquisite.
Fig. 3 is with the brake clamp unit profile of parking function.This master cylinder expandability is strong, can realize easily the function of parking brake by increasing Parking Brake Cylinders.
Fig. 4 Fig. 5 is a kind of form of brake clamp unit of this master cylinder four-point suspension composition.Take 4 liftings, by being connected of hanger supports seat front end and brake plate support, realized the combination of three-point suspension and four-point suspension, combine the advantage of the two.Plane distribution four mounting holes on the hanger supports seat 10, and its front end is connected with suspension rod by pin, and suspension rod can rotate around the pin axis.Connection is connected by axle in the suspension rod lower end with brake plate support, the two can relatively rotate.Suspension bracket 11 is connected with the hanger supports seat by bolt.And by pin lever is installed on the suspension bracket.Lever one end connects master cylinder with master cylinder fixing bolt 8, and the other end is connected with brake plate support by the brake head bearing pin, and can relatively rotate with brake plate support.Lever and suspension rod have retrained brake plate support jointly, have determined the position of brake plate support.The compact type master cylinder can effectively dwindle the nipper units volume because volume is little when therefore being used in this structure.
Fig. 6 is that this compact type master cylinder is applied in the another kind of form on the four-point suspension clamp.Than existing design, its volume is little, and quality is light, interface flexible.Be used for the installation of nipper units at flap seat four mounting holes that distributing.Suspension bracket passes flap seat by pin and fixes, and can relatively rotate with flap seat, deflects when the relative movement to adapt to clamp and brake disc.Lever is connected with suspension bracket by axle, and in order to transmit braking force, the one end connects the compact type master cylinder, and the other end is connected bearing pin with brake plate support and connects.
Fig. 7 and Fig. 8 are a kind of application forms of compact type master cylinder and the combination of three-point suspension nipper units.This kind clamp hanger and two three positions that suspension rod has determined to install clamp.The compact type master cylinder also can be used in this type of nipper units.
This type of Novel compact formula nipper units flexibly interface and installation form from Fig. 4 to Fig. 8, have been showed.Thereby go for different occasions, have fabulous applicability.
In addition, it will be understood by those skilled in the art that the master cylinder for the rail vehicle braking nipper units of the present utility model can also expand to master cylinder with the parking brake function by installing parking brake device additional.
Claims (8)
1. master cylinder that is used for the rail vehicle braking nipper units, it comprises cylinder cap and cylinder body, it is characterized in that, described cylinder body comprises:
Be arranged on the piston with voussoir at described cylinder body top,
The bearing bracket of working in coordination with described piston that is arranged on described piston bottom,
With the brake disc of the adjacent setting of described bearing bracket,
Wherein, be provided with the piston return spring between described piston and the bearing bracket, be provided with return spring between the inwall of described cylinder body and the bearing bracket.
2. the master cylinder for the rail vehicle braking nipper units according to claim 1, it is characterized in that, described cylinder body further comprises: the leading screw that is arranged on described cylinder body middle part, the front regulator of working in coordination with this leading screw forms and rear regulator composition, form the guide springs of adjacent setting, the adjacent setting with described bearing bracket of described guide springs with described front regulator.
3. the master cylinder for the rail vehicle braking nipper units according to claim 2, it is characterized in that, described front regulator forms and comprises: head and the tail are interconnective front adjustment spring successively, front adjusting nut, front adjustment toothholder and front adjusting sleeve, described front adjusting nut and described leading screw are worked in coordination.
4. the master cylinder for the rail vehicle braking nipper units according to claim 2 is characterized in that, described rear regulator forms and comprises: adjust afterwards spring, and rear adjustment toothholder and rear adjusting nut, described rear adjusting nut and described leading screw are worked in coordination.
5. the master cylinder for the rail vehicle braking nipper units according to claim 4 is characterized in that, the afterbody of described rear adjustment toothholder connects a backstop, and the inwall of described cylinder body is provided with a spacing back-up ring of the described backstop of restriction mobile position.
6. the described master cylinder for the rail vehicle braking nipper units of any one according to claim 1-5, it is characterized in that, described cylinder body also comprises: be arranged on first gear clutch that is made of rear adjusting nut and rear adjustment toothholder of described cylinder interior and the second gear clutch that is made of front adjusting nut and front adjustment gear ring, described rear adjusting nut links to each other with described rear adjustment spring, and described front adjusting nut links to each other with described front adjustment spring.
7. the master cylinder for the rail vehicle braking nipper units according to claim 3 is characterized in that: the adjacent setting with described guide springs of described front adjusting sleeve.
8. the master cylinder for the rail vehicle braking nipper units according to claim 3, it is characterized in that: described brake disc is arranged between described front adjusting sleeve and the described bearing bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220457291.3U CN202790244U (en) | 2012-09-07 | 2012-09-07 | Brake cylinder for braking clamp unit of railway vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220457291.3U CN202790244U (en) | 2012-09-07 | 2012-09-07 | Brake cylinder for braking clamp unit of railway vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202790244U true CN202790244U (en) | 2013-03-13 |
Family
ID=47817510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220457291.3U Expired - Lifetime CN202790244U (en) | 2012-09-07 | 2012-09-07 | Brake cylinder for braking clamp unit of railway vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202790244U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805195A (en) * | 2014-12-31 | 2016-07-27 | 常州南车铁马科技实业有限公司 | Air-oil converter for foundation brake device of rail vehicle |
| CN104455113B (en) * | 2014-10-20 | 2016-09-07 | 青岛思锐科技有限公司 | Rail locomotive car braking nipper units |
| CN112855809A (en) * | 2021-01-04 | 2021-05-28 | 中车青岛四方车辆研究所有限公司 | Pneumatic brake cylinder and brake caliper unit |
-
2012
- 2012-09-07 CN CN201220457291.3U patent/CN202790244U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455113B (en) * | 2014-10-20 | 2016-09-07 | 青岛思锐科技有限公司 | Rail locomotive car braking nipper units |
| CN105805195A (en) * | 2014-12-31 | 2016-07-27 | 常州南车铁马科技实业有限公司 | Air-oil converter for foundation brake device of rail vehicle |
| CN112855809A (en) * | 2021-01-04 | 2021-05-28 | 中车青岛四方车辆研究所有限公司 | Pneumatic brake cylinder and brake caliper unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |
|
| CX01 | Expiry of patent term |