CN204852088U - Floating pincers dish stopper - Google Patents
Floating pincers dish stopper Download PDFInfo
- Publication number
- CN204852088U CN204852088U CN201520582404.6U CN201520582404U CN204852088U CN 204852088 U CN204852088 U CN 204852088U CN 201520582404 U CN201520582404 U CN 201520582404U CN 204852088 U CN204852088 U CN 204852088U
- Authority
- CN
- China
- Prior art keywords
- caliper
- support
- elastic member
- guide finger
- floating type
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a floating pincers dish stopper, including the support, the pincers body, uide pin, inner friction piece, external friction plate, its characterized in that: the support on be equipped with first mounting hole, the one end fixed connection of uide pin in first mounting hole, uide pin and support relative displacement does not take place when the braking, the pincers body and uide pin swing joint are along uide pin axial displacement. The utility model discloses an uide pin and support fixed mounting, relative displacement does not take place with the support for the uide pin when the braking, and under non - braking state, the uide pin can not be because of the collision of fitting surface metal produces the noise with the support, and the processing length in uide pin and support mounting hole is less simultaneously to greatly simplify processing technology, improved the yield of electroplating, reduced manufacturing cost.
Description
Technical field
The utility model relates to floating type clipper disk brake.
Background technique
In Hyundai Motor technology, vehicle hydraulic formula clipper disk brake is divided into fixed and floating type two kinds; Floating type clipper disk brake, its brake disc is directly fixed on wheel hub, does not have floating displacement.And caliper utilizes bearing pin or is bolted on support, then be fixed in front damping by support, between such caliper and support, a small amount of axial displacement can be done on bearing pin or bolt, formed and float.There is brake piston the general only side of floating type clipper disk brake, be arranged on the position that caliper is positioned at vehicle interior side, brake piston promotes inner attrition piece under the effect of hydraulic coupling, and when inner attrition piece touches brake disc, now inner attrition piece is subject to the reaction force of brake disc.Owing to remain brake fluid pressure in caliper, therefore the reaction force of brake disc just promotes caliper and moves along bearing pin, until outboard friction sheet and brake disc, and inside and outside friction plate acting in conjunction clamping brake disc, produce braking moment, thus realize the floating brake of vehicle.
As Figure 13, Figure 14 shows that common floating type clipper disk brake stereogram and sectional view.Support 03 is fixedly mounted on vehicle chassis, and one end of guide finger 08 is fixedly mounted in caliper ear 021 by bolt 07, and the other end is arranged in the guide finger mounting hole 031 of support 03 by Spielpassung.The end of guide finger mounting hole 031 is provided with guide pin dust cover 09, and guide pin dust cover 09 coordinates with guide finger 08 pin-and-hole to be installed, for damping and dust-proof.
Support 03 is fixedly installed two spring sheets 04 in the bilateral symmetry of brake disc (not shown), and spring sheet is provided with guiding groove, and the center line of groove is consistent with piston axis direction.Inboard friction sheet 05 and outside outside friction disc 06 are arranged in caliper, and the connecting end of bottom is arranged in the guiding groove of two spring sheets 04 respectively, in braking process, can slide along the guiding groove of the axial direction of piston 01 on spring sheet 04.
In braking process, promote inner attrition piece 05 at the effect lower piston 01 of hydraulic coupling to fit with brake disc, simultaneously under the reaction force of brake disc, the opposite direction that caliper 02 moves to piston 01 moves, thus the another side promoting outside friction disc 06 and brake disc is fitted, produce braking moment, realize braking or slow down.In practice; because guide finger 08 and guide finger mounting hole 031 are Spielpassung, cause under non-brake state, if impact force is enough; guide finger 08 can touch with the inwall of guide finger mounting hole 031; produce metal knocking noise, in order to reduce the metal knocking noise produced therefrom, guide finger 5 can design longer with the fitting surface of guide finger mounting hole 031 usually; simultaneously; because fitting surface generally need adopt grease lubrication, for preventing grease excessive, guide finger mounting hole is generally blind hole design.Such design requirement just adds guide finger 08 and the machining difficulty of guide finger mounting hole 031 and the difficulty of plating, causes increasing cost of production.The price of floating type clipper disk brake is made to be difficult to decline.
Model utility content
The purpose of this utility model is to overcome deficiency of the prior art, provides a kind of floating type clipper disk brake of low cost.
For realizing above object, the utility model is achieved through the following technical solutions.
Floating type clipper disk brake, comprises
Support, support is fixedly mounted on vehicle chassis, is fixed block;
Caliper, is provided with cylinder holes in caliper, is movable part;
Piston, piston clearance cooperation is arranged in the cylinder holes of caliper, during braking, by the driving of hydraulic coupling, can along the axial motion of cylinder holes;
Guide finger, is movably connected support and caliper, and in braking process, caliper axially moves to the direction contrary with piston movement along guide finger;
Inner attrition piece, inner attrition piece is arranged in the cavity volume that caliper and support formed, and being connected, when braking, promoting by piston, slide, until fit with brake disc to brake disc with bracket slide;
Outside friction disc, outside friction disc is arranged in the cavity volume that caliper and support formed, and is connected, with caliper synchronizing moving with bracket slide;
It is characterized in that: described support is provided with the first mounting hole, one end of described guide finger is fixedly connected in the first mounting hole, there is not relative displacement when braking in described guide finger and support, described caliper is flexibly connected with guide finger, can move axially along guide finger.
Preferably, the described mode that is fixedly connected with is for being threaded.
Preferably, described caliper is provided with the first through hole, and described guide finger coordinates with the first via clearance, is fixedly connected with support through the first through hole.
Preferably, be provided with the first elastic member between the first described through hole and guide finger, the first described elastic member is fixedly mounted in the first through hole.
Preferably, the first described elastic member is the rubber bushing with self-lubricating function
Preferably, also comprise the second elastic member and the 3rd elastic member, the second described elastic member and the 3rd elastic member are fixedly mounted on the two ends that support is positioned at vehicle outside, second elastic member and the 3rd elastic member can produce the elastic deformation force of vertical direction, make caliper have the trend of infinitely fitting to support.
Preferably, the second elastic member and the 3rd elastic member are the leaf spring of symmetrical configuration.
Preferably, also comprise the 4th elastic member, the 4th described elastic member is arranged between inner attrition piece and the surface of contact of caliper, utilizes the deadweight of caliper to provide vertical direction elastic anchorage force to inner attrition piece.
Preferably, the 4th described elastic member can be arranged between outside friction disc and the surface of contact of caliper simultaneously, utilizes the deadweight of caliper to provide vertical direction elastic anchorage force to outside friction disc.
Preferably, the 4th described elastic member is sheet spring.
Preferably, described support is provided with platform bar, and described inside and outside friction plate is rack-mount with vertical direction, clings to do not interfere with platform.
Accompanying drawing explanation
Fig. 1 is the stereogram of the floating type clipper disk brake of the utility model.
Fig. 2 is the floating type clipper disk brake parts explosion of the utility model.
Fig. 3 is the utility model guide finger sectional arrangement drawing
Fig. 4 caliper, support, guide finger assembling schematic diagram
Fig. 5 is that the floating type clipper disk brake of the utility model installs sectional view
Fig. 6 is the inside and outside friction plate structure schematic diagram of the utility model.
Fig. 7 is the 4th elastic member structural representation.
Fig. 8 is that the inside and outside friction plate of the utility model and support assemble schematic diagram.
Fig. 9 is the scheme of installation of the utility model outside friction disc and support, caliper.
Figure 10 is the scheme of installation of the utility model inner attrition piece and support, caliper.
Figure 11 is the utility model second elastic member structural representation.
Figure 12 is the utility model second elastic member scheme of installation.
Figure 13 is common floating type clipper disk brake stereogram.
Figure 14 is common floating type clipper disk brake sectional view.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail:
As shown in Figure 1 and Figure 2, floating type clipper disk brake of the present utility model, comprises piston 1, caliper 2, support 3.Piston 1 is fixedly mounted in the cylinder holes of caliper 2, can be subject to brake fluid pressure driver output hydraulic coupling.Support 3 is fixedly mounted on vehicle chassis, is fixed block.Caliper 2 is arranged on support 3 by symmetrically arranged two guide fingers 8 and the second elastic member 4, the 3rd elastic member 11 respectively, and the cavity volume that inner attrition piece 5 and outside friction disc 6 are positioned at caliper 2 and support 3 formation is inner, is slidably connected respectively with support 3.The wherein end contact of inner attrition piece 5 and piston 1, the top of outside friction disc 6 is connected with caliper 2 rigid contact.
In braking process, piston 1 exports brake fluid pressure, promote inner attrition piece 5 to move to brake disc (not shown) direction on the supporting surface of support 3 along piston 1 axial direction, when inner attrition piece 5 is fitted with brake disc, the opposite direction of reaction force band moving caliper 2 along guide finger 8 to piston 1 movement that brake disc produces moves, because caliper 2 is connected with outside friction disc 6 rigid contact, outside friction disc 6 under the drive of caliper 2 with caliper 2 synchronizing moving, to brake disc another side paste and, thus brake disc is clamped by inner attrition piece 5 and outside friction disc 6, produce braking moment, realize braking.
As shown in Figure 3, Figure 4, guide finger 8 of the present utility model is cylindrical shape, and smooth surface is to reduce friction factor, one end is processed with outside thread, and support 3 is provided with the first mounting hole 34, and hole wall is provided with internal thread, the degree of depth approximates the diameter of guide finger 8, can be blind hole, also can be through hole.Guide finger 8 adopts to be threaded and is fixed in the first mounting hole 34 of support 3.Guide finger 8 the other end is provided with the pilot hole 81 of interior hexagonal, for the assembling of guide finger 8.
As shown in Figure 2, caliper 2 is provided with in the first through hole 21, first through hole 21 and is provided with rubber bushing 9, and rubber bushing 9 is tubulose, and band self-lubricating function, is integrated with the function of protecting jacket and dust-proof cover simultaneously.The outer circumferential face of rubber bushing 9 is provided with the first positioning step 91 and the second positioning step 92, and rubber bushing 9 is fixedly mounted in the first through hole 21 by the first positioning step 91 and the second positioning step 92.Guide finger 8 is threaded with the first mounting hole 31 through rubber bushing 9.In braking process, rubber bushing 9 is wrapped in guide finger 8, and moves together with caliper 2 along the axial direction of guide finger 8.
Guide finger 8 of the present utility model fixedly mounts with support 3, when braking there is not relative displacement in guide finger 8 and support 3, under non-brake state, guide finger 8 and support 3 can not produce noise because of fitting surface metal bump, therefore in the first mounting hole 34 and guide finger 8 processing length without particular/special requirement, thus greatly simplify technique, improve the yield rate of plating, reduce manufacture cost, reduce noise.Support also can adopt with the Placement of guide finger weld, other Placements such as riveted joint.
Rubber bushing 9 changes guide finger 8 and the fit system of the first through hole 21 on caliper 2 into resilient engagement.When vehicle traveling jolts generation impact force, the first elastic member 9 can absorb the impact energy of caliper 2, is converted into resiliently deformable, thus reduces noise, alleviates wearing and tearing.Simultaneously because rubber bushing 9 can be accompanied with self-lubricating function, the additional slippage ability that can increase substantially guide finger 8 with silicone oil or grease lubrication, reduces dragging of the caliper 2 produced because of the slip damping of guide finger 8.
As shown in Figure 5, Figure 6, inner attrition piece 5 and outside friction disc 6 shape, structure are identical.What relative position was arranged on vehicle interior side is called inner attrition piece 5, and what relative position was arranged on vehicle outside is called outside friction disc 6.The two ends of outside friction disc 6 are provided with two the first ears 60 of symmetrical configuration.Each first ear 60 is provided with through mach orthogonal first surface of contact 61 and the first facade 62, for the assembling with support 3.The side of the first ear 60 upper end portion is also provided with the first groove 64.The top of outside friction disc 6 is also provided with position the first boss 63 placed in the middle, for being connected with the rigid contact of caliper 2.Inner attrition piece 5 specifically has the structure that outside friction disc is identical, comprises symmetrically arranged second ear 50, and each second ear 50 comprises the second surface of contact 51, second facade 52, second boss 53 and the second groove (not shown).
As shown in Figure 6, Figure 7, the 4th elastic member 7 of the present utility model can be sheet spring, and the 4th elastic member comprises the first shell fragment 71 and the second shell fragment 72 and the 3rd shell fragment 73.Wherein the first shell fragment 71 is assemblied in the second groove, is fixed on inner attrition piece 5 by the 4th elastic member 7, to prevent from coming off in assembling and working procedure and deflecting; Second shell fragment 72 is clamped in the corresponding site of the another side of inner attrition piece 5.3rd shell fragment 73 and caliper 2 Elastic Contact, by the weight transfer of caliper self to inner attrition piece 5, for inner attrition piece 5 provides the elastic support of vertical direction.The existence of the 3rd shell fragment 73 simultaneously can also reduce frictional force, improves the slippage ability of inner attrition piece 5.4th elastic member 7 number can be 2, is arranged on inner attrition piece 5, also can be 4, is also arranged on outside friction disc 6 simultaneously.
As shown in Fig. 4, Fig. 8, support 3 is symmetrically arranged with four mounting interfaces that structure is identical, each mounting interface is provided with orthogonal 3rd surface of contact 31 and the 3rd facade 32, is machining plane.Inner attrition piece 5 and outside friction disc 6 are arranged on the mounting interface of support 3 correspondence respectively with direction as shown.Inner attrition piece 5 is placed on two the 3rd surface of contact 31 by two the second surface of contact 51 in the vertical directions, and two the second facades 52 and two the 3rd facade 32 Spielpassung are installed, and limit the Horizontal displacement of inner attrition piece 5; Outside friction disc 6 is placed on two other the 3rd surface of contact 31 by two the first surface of contact 61 in the vertical directions, and two the first facades 62 are installed with two other corresponding the 3rd facade 32 Spielpassung, limit the Horizontal displacement of outside friction disc 6.
As shown in Figure 5, Figure 8, corresponding site support 3 of the present utility model being positioned at vehicle outside is provided with platform bar 33, and platform bar 33 is parts of support 3, is shaped when casting.So-called platform bar refers to the rigidity into increasing stressed member, reduces the materials of stressed member and the beam column structure that arranges simultaneously.
The structure of the utility model inner attrition piece 5 and outside friction disc 6 and the design of support 3 mounting interface structure, current existing floating type caliper disc brake inner attrition piece 05 and the installation direction of outside friction disc 06 along piston shaft to installation can be changed, adopt vertical direction as shown in Figure 8 to install.This mounting type can make when designing the structure of support 3, without the need to considering whether the existence that platform clings to and shape can affect the installation of inner attrition piece 5 and outside friction disc 6.As shown in Fig. 4, Fig. 5, Fig. 8, designer can design shape and the position of platform bar at leisure, and the size in the gap 35 of platform bar 34 and outside friction disc can be ideally 0.Platform is clung to and ad infinitum near outside friction disc 6, the layout property of platform bar 33 can be improved in limited space.Compared to the support 3 of not setting table bar 33, support 3 of the present utility model is stressed more balanced when braking.The lower materials that can reduce support more than 20% of same rigidity, thus reduce cost of production.
As shown in Figure 9, outside friction disc 6 and caliper 2, support 3 scheme of installation.Caliper 2 inwall is provided with mach curved surface 22, curved surface 22 is connected with the first boss 63 rigid contact on external friction block 6, because the first boss 63 upper surface is plane, therefore the first boss 63 is be ideally two straight lines with the contact position of curved surface 22, when caliper 2 moves to the direction of brake disc by the reaction force of brake disc, because rigid contact connects, caliper 2 drives outside friction disc 6 to move in the same way, and then compresses brake disc and realize service brake; After hydraulic coupling is cancelled, the pressure acted on friction plate 6 is cancelled, and friction material has larger compressibility compared to metallic material, its compression energy suffered in braking process release, and is with moving caliper 2 to get back to ideal position; Caliper of the present utility model 2 is less with the contact range of external friction block, can motion both ensureing conforming while, reduces friction and the energy loss that produces.
As shown in Fig. 2, Fig. 9, the utility model can the 3rd surface of contact 31 of carriage interface and and between the first surface of contact 61 of the 3rd facade 32 and outside friction disc 6 and the first facade 62, spring sheet 10 is set, in order to reduce outside friction disc 6 frictional force suffered when braking, and then improve the synchronization-sliding ability of outside friction disc 6 and caliper 2.As shown in Figure 9, spring sheet 10 is that symmetric type is arranged on support 3.Equally, as shown in Figure 10, the relevant position that inner attrition piece 5 and support 3 assemble also can arrange frictional force suffered when spring sheet 10 is braked to reduce.
As shown in Figure 10, the second boss 53 on inner attrition piece 5 does not contact with caliper 2.Inner attrition piece does not move with caliper 2 when braking.
As shown in Figure 1, Figure 2, shown in Figure 11, for the second elastic member, the leaf spring that second elastic member 4 and the 3rd elastic member 11 design for symmetric type, for connecting caliper 2 and support 3, is symmetricly set on the side of the floating type clipper disk brake of the utility model away from vehicle.As shown in Figure 11, Figure 12, the second elastic member 4 comprises the first location piece 41, second location piece 42, first bare terminal end 43, second bare terminal end 44 and support beam 45.First location piece 41 and the second location piece 42 are arranged on the corresponding position of support 3 respectively.First bare terminal end 43 is clamped in the relevant position of caliper 2, with the first location piece 41 acting in conjunction, at vertical direction, elastic deformation force is applied to caliper 2, caliper 2, outside friction disc 6 are pressed to support 3 all the time, and in the horizontal direction the second elastic member 4 is located; Second location piece 42 and the second bare terminal end 44 acting in conjunction define the second elastic member 4 along piston 1 axle direction mounting point.
First bare terminal end 43 can be designed as point-face contact with the surface of contact of caliper 2, in order to reduce frictional force, promotes the skid force of caliper 2 axis.Preferably scheme stamps out some projections at the first bare terminal end 43, and the surface of projection is cambered surface, and the surface of contact of caliper is plane.
Embodiment in the utility model, only for being described the utility model, does not form the restriction to right, other equivalent in fact substituting, all in the utility model protection domain that those skilled in that art can expect.
Claims (11)
1. floating type clipper disk brake, comprises
Support, support is fixedly mounted on vehicle chassis, is fixed block;
Caliper, is provided with cylinder holes in caliper, is movable part;
Piston, piston clearance cooperation is arranged in the cylinder holes of caliper, during braking, by the driving of hydraulic coupling, can along the axial motion of cylinder holes;
Guide finger, is movably connected support and caliper, and in braking process, caliper axially moves to the direction contrary with piston movement along guide finger;
Inner attrition piece, inner attrition piece is arranged in the cavity volume that caliper and support formed, and being connected, when braking, promoting by piston, slide, until fit with brake disc to brake disc with bracket slide;
Outside friction disc, outside friction disc is arranged in the cavity volume that caliper and support formed, and is connected, with caliper synchronizing moving with bracket slide
It is characterized in that: described support is provided with the first mounting hole, one end of described guide finger is fixedly connected in the first mounting hole, there is not relative displacement when braking in described guide finger and support, described caliper is flexibly connected with guide finger, can move axially along guide finger.
2. floating type clipper disk brake according to claim 1, is characterized in that, the described mode that is fixedly connected with is for being threaded.
3. floating type clipper disk brake according to claim 1 and 2, is characterized in that, described caliper is provided with the first through hole, and described guide finger coordinates with the first via clearance, is fixedly connected with support through the first through hole.
4. floating type clipper disk brake according to claim 3, is characterized in that, is provided with the first elastic member between the first described through hole and guide finger, and the first described elastic member is fixedly mounted in the first through hole.
5. floating type clipper disk brake according to claim 4, is characterized in that, the first described elastic member is the rubber bushing with self-lubricating function.
6. floating type clipper disk brake according to claim 1, it is characterized in that, also comprise the second elastic member and the 3rd elastic member, the second described elastic member and the 3rd elastic member are fixedly mounted on the two ends that support is positioned at vehicle outside, second elastic member and the 3rd elastic member can produce the elastic deformation force of vertical direction, make caliper have the trend of infinitely fitting to support.
7. floating type clipper disk brake according to claim 6, is characterized in that, the second elastic member and the 3rd elastic member are the leaf spring of symmetrical configuration.
8. floating type clipper disk brake according to claim 1, it is characterized in that, also comprise the 4th elastic member, the 4th described elastic member is arranged between inner attrition piece and the surface of contact of caliper, utilizes the deadweight of caliper to provide vertical direction elastic anchorage force to inner attrition piece.
9. floating type clipper disk brake according to claim 8, is characterized in that, the 4th described elastic member can be arranged between outside friction disc and the surface of contact of caliper simultaneously, utilizes the deadweight of caliper to provide vertical direction elastic anchorage force to outside friction disc.
10. floating type clipper disk brake according to claim 8 or claim 9, it is characterized in that, the 4th described elastic member is sheet spring.
11. floating caliper mechanisms according to claim 1, is characterized in that, described support is provided with platform bar, and described inside and outside friction plate is rack-mount with vertical direction, clings to do not interfere with platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520582404.6U CN204852088U (en) | 2015-08-05 | 2015-08-05 | Floating pincers dish stopper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520582404.6U CN204852088U (en) | 2015-08-05 | 2015-08-05 | Floating pincers dish stopper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204852088U true CN204852088U (en) | 2015-12-09 |
Family
ID=54742638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520582404.6U Withdrawn - After Issue CN204852088U (en) | 2015-08-05 | 2015-08-05 | Floating pincers dish stopper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204852088U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020301A (en) * | 2015-08-05 | 2015-11-04 | 万向钱潮（上海）汽车系统有限公司 | Floating type caliper disc brake |
| CN108700143A (en) * | 2016-02-09 | 2018-10-23 | 大陆-特韦斯股份有限公司 | There is the Motor vehicle disc brake device of lining in part |
| CN108799366A (en) * | 2018-08-29 | 2018-11-13 | 莱州虎威机械科技有限公司 | A kind of braking clamp |
| CN110541901A (en) * | 2019-09-11 | 2019-12-06 | 山东纳赫汽车零部件有限公司 | Three-point stress structure of brake caliper body |
| CN112594305A (en) * | 2020-12-15 | 2021-04-02 | 万向钱潮（上海）汽车系统有限公司 | Clamp structure |
| CN112943825A (en) * | 2021-03-22 | 2021-06-11 | 东风汽车集团股份有限公司 | Floating clamp and braking method thereof |
-
2015
- 2015-08-05 CN CN201520582404.6U patent/CN204852088U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020301A (en) * | 2015-08-05 | 2015-11-04 | 万向钱潮（上海）汽车系统有限公司 | Floating type caliper disc brake |
| CN108700143A (en) * | 2016-02-09 | 2018-10-23 | 大陆-特韦斯股份有限公司 | There is the Motor vehicle disc brake device of lining in part |
| US10619684B2 (en) | 2016-02-09 | 2020-04-14 | Continental Teves Ag & Co. Ohg | Partially lined motor-vehicle disk brake with friction linings which are provided with pull-support in a frame-shaped holder |
| CN108799366A (en) * | 2018-08-29 | 2018-11-13 | 莱州虎威机械科技有限公司 | A kind of braking clamp |
| CN110541901A (en) * | 2019-09-11 | 2019-12-06 | 山东纳赫汽车零部件有限公司 | Three-point stress structure of brake caliper body |
| CN112594305A (en) * | 2020-12-15 | 2021-04-02 | 万向钱潮（上海）汽车系统有限公司 | Clamp structure |
| CN112943825A (en) * | 2021-03-22 | 2021-06-11 | 东风汽车集团股份有限公司 | Floating clamp and braking method thereof |
| CN112943825B (en) * | 2021-03-22 | 2022-05-13 | 东风汽车集团股份有限公司 | Floating clamp and braking method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151209 Effective date of abandoning: 20171110 |
|
| AV01 | Patent right actively abandoned |