CN206363972U - Magnetictrip - Google Patents
Magnetictrip Download PDFInfo
- Publication number
- CN206363972U CN206363972U CN201621373978.3U CN201621373978U CN206363972U CN 206363972 U CN206363972 U CN 206363972U CN 201621373978 U CN201621373978 U CN 201621373978U CN 206363972 U CN206363972 U CN 206363972U
- Authority
- CN
- China
- Prior art keywords
- iron core
- magnetictrip
- dynamic iron
- mounting bracket
- static iron
- 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.)
- Active
Links
Landscapes
- Breakers (AREA)
Abstract
A kind of magnetictrip, including mounting bracket, dynamic iron core, spring, static iron core and push rod, described static iron core is fixedly mounted on one end of mounting bracket, described dynamic iron core is slidably mounted on the other end of mounting bracket and the side wall through mounting bracket sets to form under-voltage drive end, one end of the push rod is connected with dynamic iron core, the side wall of the other end through static iron core and mounting bracket sets to form shunt opening drive end, described spring housing is on push rod and is arranged between dynamic iron core and static iron core, and coil block is arranged with outside dynamic iron core, static iron core.Magnetictrip of the present utility model is provided with two drive ends, using same magnetictrip, by changing mounting means, just it can be used or be used as shunt release as device for under-voltage releasing equipment according to different demands, not only mounting means is easy easily realizes, while the part of magnetictrip use is few and processing technology is simple.
Description
Technical field
The utility model is related to Low Voltage Electrical Apparatus, particularly a kind of magnetictrip.
Background technology
In low-voltage distribution system, device for under-voltage releasing equipment is used to detect supply voltage, when supply voltage drops to undervoltage tripping
In the range of the 70%-35% of device rated operational voltage, device for under-voltage releasing equipment, which should be acted, disconnects breaker.Supply voltage is less than dropout
Device rated operational voltage 35% when, device for under-voltage releasing equipment should be able to prevent breaker closing, and supply voltage is equal to or more than electrical apparatus release
Rated voltage 85% when, should ensure that breaker closing.Shunt release is used for the separating brake of control or remote control of circuit breaker,
When supply voltage is maintained between the 70%-110% of specified control supply voltage, the shunt opening under the conditions of all working of electrical equipment
Electrical apparatus release should be able to disconnect electrical equipment.
But existing device for under-voltage releasing equipment is all two sets of different designs with shunt release, not only increases part
Quantity, also increases the complexity of processing.
Utility model content
The purpose of this utility model is to overcome the defect of prior art, and there is provided a kind of part is few, processing technology is simple, work(
The complete magnetictrip of energy.
To achieve the above object, the utility model employs following technical scheme：
A kind of magnetictrip, including mounting bracket 13, dynamic iron core 5, spring 6, static iron core 7 and push rod 8, described static iron core
7 are fixedly mounted on one end of mounting bracket 13, and described dynamic iron core 5 is slidably mounted on the other end of mounting bracket 13 and passes through mounting bracket
13 side wall sets to form under-voltage drive end 52, and one end of the push rod 8 is connected with dynamic iron core 5, and the other end passes through static iron core 7
Set to form shunt opening drive end 81 with the side wall of mounting bracket 13, described spring 6 is sleeved on push rod 8 and is arranged on dynamic iron core 5
Between static iron core 7, coil block is arranged with outside dynamic iron core 5, static iron core 7.
Optionally, described mounting bracket 13 includes yoke 9 and the protecgulum 1 installed in the end of yoke 9, described static iron core 7
On the substrate 92 for being mounted relative to the yoke 9 of the one end of protecgulum 1, described dynamic iron core 5 through protecgulum 1 and slides company with protecgulum 1
Connect.
When optionally, for shunt release, the release lever of described shunt opening drive end 81 and breaker is oppositely arranged, institute
The dynamic iron core 5 stated is arranged at intervals by spring 6 with static iron core 7, and dynamic iron core 5 is powered in the magnetic field of generation by electromagnetic force in coil 2
Effect overcome the elastic force of spring 6 to the direction movement of static iron core 7 so that the driving release lever action of shunt opening drive end 81.
When optionally, for device for under-voltage releasing equipment, the release lever of described under-voltage drive end 52 and breaker is oppositely arranged, and is moved
Iron core 5 compression spring 6, the elastic force of dynamic iron core 5 described in when under-voltage in spring 6 in the case where coil 2 is powered the electromagnetic force that produces
Moved under effect to the direction away from static iron core 7, so that the driving release lever action of under-voltage drive end 52.
Optionally, described coil block includes coil 2, outer skeleton 3 and inner frame 4, and described coil 2 is wound on dermoskeleton
On frame 3, described outer skeleton 3 is set in outside dynamic iron core 5 and static iron core 7, and outer skeleton 3 is installed in mounting bracket 13,
Described inner frame 4 is arranged between outer skeleton 3 and dynamic iron core 5 and static iron core 7.
Optionally, the end of the shunt opening drive end 81 of the push rod 8 is provided with pad 10 and two nuts 11, described two
Individual nut 11 is in being oppositely installed and pad 10 is arranged between two nuts 11.
Optionally, described static iron core 7 includes the second mounting hole 71 for being arranged on middle part and the limiting section for being arranged on end
72, described limiting section 72 is provided with the spacing hole 721 for being arranged concentrically and being connected with the second mounting hole 71, the spacing hole
721 diameter is less than the diameter of the second mounting hole 71 to form boss 722, limiting section 72 and the substrate 92 for being arranged on yoke 9
The third through-hole 921 at middle part is engaged.
Optionally, described one end of push rod 8 for being arranged with spring 6 is slidably matched through the second mounting hole 71 with spacing hole 721
And extend to outside limiting section 72, first mounting hole 51 of the one end of the other end with being arranged on dynamic iron core 5 is engaged, the spring 6
Two ends be connected with the end face and the end contact of boss 722 around the first mounting hole 51 respectively and enable spring 6 second
Spaced motion in mounting hole 71, the other end of the dynamic iron core 5 is matched somebody with somebody through protecgulum 1 and with the slip of fourth hole 101 on protecgulum 1
Share.
Optionally, described inner frame 4 is that the integrally formed structure set is bent along the inwall of first through hole 31, after bending
Inner frame 4 form the second through hole 42 and gap 41.
Optionally, described magnetictrip is arranged on pedestal 12, and described pedestal 12 includes installation cavity 121, set
Limited wall 123 and the back-off 122 being arranged on the side wall of installation cavity 121 in the side of installation cavity 121, described mounting bracket 13 are installed
In the installation cavity 121 and the magnetic wall 91 of yoke 9 is oppositely arranged with the side wall of installation cavity 121, the substrate 92 of the yoke 9 is with limiting
Position wall 123 is correspondingly arranged.
Magnetictrip of the present utility model, using same magnetictrip, is pacified provided with two drive ends by changing
Dress mode, it becomes possible to according to different demands as device for under-voltage releasing equipment, or used as shunt release, the shunt opening of magnetictrip
Drive end and under-voltage drive end can be respectively as shunt releases and the drive end of device for under-voltage releasing equipment, and not only mounting means is easy
Easily realize, while the part of magnetictrip use is few and processing technology is simple.
Brief description of the drawings
Fig. 1 is a kind of mounting structure schematic diagram of the present utility model；
Fig. 2 is similar alternative arrangements schematic diagram of the present utility model；
Fig. 3 is overall structure decomposing schematic representation of the present utility model；
Fig. 4 is overall structure assembling schematic diagram of the present utility model；
Fig. 5 is integrally-built sectional view of the present utility model；
Fig. 6 is dynamic iron core of the present utility model and the assembling structure schematic diagram of static iron core；
Fig. 7 is the structural representation of coil block of the present utility model；
Fig. 8 is the structural representation of inner frame of the present utility model；
Fig. 9 is the structural representation of mounting bracket of the present utility model；
Figure 10 is the structural representation of installation embodiment of the present utility model；
Figure 11 is the structural representation of pedestal of the present utility model.
Embodiment
Embodiment of the present utility model is provided below in conjunction with accompanying drawing 1 to 11, further illustrates that electromagnetism of the present utility model takes off
Detain implement body embodiment.Magnetictrip of the present utility model is not limited to the following description.
As illustrated in fig. 1 and 2, the magnetictrip in the utility model includes mounting bracket 13, dynamic iron core 5, spring 6, quiet iron
Core 7 and push rod 8, described static iron core 7 are fixedly mounted on one end of mounting bracket 13, and described dynamic iron core 5 is slidably mounted on installation
The other end of frame 13 simultaneously passes through the side wall of mounting bracket 13 to set to form under-voltage drive end 52, one end of the push rod 8 and dynamic iron core
5 are connected, and the side wall of the other end through static iron core 7 and mounting bracket 13 is set to form shunt opening drive end 81, and described spring 6 is set with
On push rod 8 and it is arranged between dynamic iron core 5 and static iron core 7, coil block is arranged with outside dynamic iron core 5, static iron core 7；Electromagnetism
The two ends of electrical apparatus release are respectively equipped with under-voltage drive end 52 and shunt opening drive end 81, when mounting bracket 13 is connect by different mounting means
When entering the circuit of breaker, two drive ends can realize breaker shunted exciter tripping or undervoltage tripping respectively.The utility model
Using same magnetictrip, by changing mounting means, it becomes possible to be used as device for under-voltage releasing equipment, or conduct according to different demands
Shunt release is used, the shunt opening drive end 81 and under-voltage drive end 52 of magnetictrip can respectively as shunt release and
Drive end during device for under-voltage releasing equipment, not only mounting means is easy easily realizes, while the part that uses of magnetictrip it is few and
Processing technology is simple.
Specifically, described mounting bracket 13 includes yoke 9 and the protecgulum 1 installed in the end of yoke 9, described static iron core 7
On the substrate 92 for being mounted relative to the yoke 9 of the one end of protecgulum 1, described dynamic iron core 5 through protecgulum 1 and slides company with protecgulum 1
Connect.The spring 6 of magnetictrip is sleeved on push rod 8 and is arranged between dynamic iron core 5 and static iron core 7, certainly according to different
Use demand, magnetictrip of the present utility model can use different springs 6, so that device for under-voltage releasing equipment and shunted exciter tripping
Device is general, i.e., device for under-voltage releasing equipment and shunt release can share all parts in addition to spring 6, and for under-voltage
When threading off with shunted exciter tripping, only mounting bracket 13 need to be rotated 180 ° when mounted.
As shown in figure 3, the preferred structure of coil block of the present utility model, described coil block is arranged on mounting bracket 13
It is interior, coil block include coil 2, outer skeleton 3 and inner frame 4, described coil 2 be wound on outer skeleton 3 and with the magnetic of yoke 9
Wall 91 is oppositely arranged, and described outer skeleton 3 is set in outside dynamic iron core 5 and static iron core 7 and is mounted by protecgulum 1 and substrate 92
In mounting bracket 13, described inner frame 4, which is arranged between outer skeleton 3 and dynamic iron core 5 and static iron core 7, to be used to support and enrich whole
Body structure.The end of the shunt opening drive end 81 of the push rod 8 is provided with for spacing pad 10 and two nuts 11, described
Two nuts 11 are in being oppositely installed and pad 10 is arranged between two nuts 11 and is used for locking, and shunt opening drive end 81 passes through pad
The structure of piece 1 and nut 11, is easy to be connected cooperation with other mechanisms, can be using the type of drive promoted, it would however also be possible to employ draw
Dynamic type of drive；Certain shunt opening drive end 81 can also be using other structures.
Specifically, as shown in figs. 1 and 4, when magnetictrip of the present utility model is used for shunt release, described electricity
Magnetic release is arranged in breaker and makes the shunt opening drive end 81 positioned at the one end of mounting bracket 13 with being used in breaker
The release lever (not shown) that linkage is threaded off is oppositely arranged, described dynamic iron core 5 be in release conditions i.e. by spring 6 with
Static iron core 7 is arranged at intervals, when there is dropout control signal, and coil 2, which is powered, produces magnetic field, effect of the dynamic iron core 5 in electromagnetic force
Under overcome the elastic force of spring 6 to the direction movement of static iron core 7 so that the driving release lever action of shunt opening drive end 81 makes breaker
Dropout separating brake.
As shown in Figures 2 and 4, when magnetictrip of the present utility model is used for device for under-voltage releasing equipment, described electromagnetic trip
Device is arranged in breaker and the under-voltage drive end 52 positioned at the other end of mounting bracket 13 is oppositely arranged with release lever, described line
Circle 2 produces magnetic field after being powered, under normal working voltage, and it is the electromagnetic force in magnetic field that described dynamic iron core 5, which is in attracting state,
Act on lower compression spring 6 and connection is contacted with static iron core 7, when the voltage in circuit is less than rated operational voltage, coil 2 is produced
Magnetic field it is smaller, dynamic iron core 5 spring 6 elastic force effect under to away from static iron core 7 direction move so that under-voltage drive end
52 driving release lever actions make circuit breaker tripping separating brake.
Installing embodiment for one of the present utility model is, as shown in Fig. 5,6 and 9, static iron core 7 include being arranged in the middle part of the
Two mounting holes 71 and the limiting section 72 for being arranged on end, described limiting section 72 is provided with to be arranged concentrically simultaneously with the second mounting hole 71
The spacing hole 721 being connected, the diameter of the spacing hole 721 is less than the diameter of the second mounting hole 71 to form boss 722, limits
The third through-hole 921 at substrate 92 middle part of the position portion 72 with being arranged on yoke 9 is engaged for static iron core 7 to be arranged on into substrate 92
On, it is arranged with one end of push rod 8 of spring 6 and is slidably matched through the second mounting hole 71 with spacing hole 721 and extends to limiting section 72
Outer to be used to install nut 11 and pad 10, first mounting hole 51 of the one end of the other end with being arranged on dynamic iron core 5, which is engaged, to be used for
Transmission, the two ends of the spring 6 are connected so that bullet with the end face and the end contact of boss 722 around the first mounting hole 51 respectively
Spring 6 can in the second mounting hole 71 spaced motion, the other end of the dynamic iron core 5 through protecgulum 1 and with the 4th on protecgulum 1
Through hole 101 is slidably matched for being used as under-voltage drive end 52.
As shown in Fig. 5,7 and 8, the outer skeleton 3 includes the first through hole 31 for being arranged on middle part and the gear for being arranged on two ends
Inner frame 4, dynamic iron core 5 and static iron core 7 are arranged with wall 32, described first through hole 31, the described winding of coil 2 is in outer skeleton
On 3 and spacing by retaining wall 32, described inner frame 4 is that the integrally formed structure set is bent along the inwall of first through hole 31,
Inner frame 4 after bending form the second through hole 42 for being arranged dynamic iron core 5 and static iron core 7 and for reserve install surplus from
And it is easy to enrich the gap 41 of total.
As shown in figure 9, the magnetic wall 91 of the yoke 9 is vertically set on the both sides of substrate 92, one end of the magnetic wall 91 with
Substrate 92 is connected, and the other end is provided with convex tendon 911, and described convex tendon 911 is engaged with being arranged on the neck 102 of the both sides of protecgulum 1,
So that protecgulum 1 is fixedly mounted on yoke 9 relative to the end of the one end of substrate 92 and forms mounting bracket 13.
As shown in FIG. 10 and 11, magnetictrip of the present utility model, which is arranged on pedestal 12, is used to be connected with breaker
Connect, described pedestal 12 includes installation cavity 121, is arranged on the limited wall 123 of the side of installation cavity 121 and is arranged on installation cavity 121
The back-off 122 of pedestal 12 is fixedly mounted in being used on the wall of side, and described mounting bracket 13 is arranged in installation cavity 121 and yoke 9
The side wall of magnetic wall 91 and installation cavity 121 be oppositely arranged, substrate 92 and the limited wall 123 of the yoke 9, which are correspondingly arranged, to move
Iron core 5 is located at free end that can be slidably.
Above content is to combine specific preferred embodiment further detailed description of the utility model, it is impossible to
Assert that specific implementation of the present utility model is confined to these explanations.For the ordinary skill of the utility model art
For personnel, without departing from the concept of the premise utility, some simple deduction or replace can also be made, should all be regarded
To belong to protection domain of the present utility model.
Claims (10)
1. a kind of magnetictrip, including mounting bracket (13), dynamic iron core (5), spring (6), static iron core (7) and push rod (8), it is special
Levy and be：Described static iron core (7) is fixedly mounted on one end of mounting bracket (13), and described dynamic iron core (5) is slidably mounted on peace
Shelve the other end of (13) and set to form under-voltage drive end (52) through the side wall of mounting bracket (13), the one of the push rod (8)
End is connected with dynamic iron core (5), and the side wall of the other end through static iron core (7) and mounting bracket (13) sets to form shunt opening drive end
(81), described spring (6) is sleeved on push rod (8) and is arranged between dynamic iron core (5) and static iron core (7), in dynamic iron core
(5), it is arranged with coil block outside static iron core (7).
2. magnetictrip according to claim 1, it is characterised in that：Described mounting bracket (13) include yoke (9) and
Protecgulum (1) installed in yoke (9) end, described static iron core (7) is mounted relative to the yoke (9) of protecgulum (1) one end
On substrate (92), described dynamic iron core (5) is slidably connected through protecgulum (1) and with protecgulum (1).
3. magnetictrip according to claim 1, it is characterised in that：During as shunt release, described shunt opening drives
Moved end (81) and the release lever of breaker are oppositely arranged, and described dynamic iron core (5) is set by spring (6) with static iron core (7) interval
Put, dynamic iron core (5) is overcome the elastic force of spring (6) to static iron core in coil (2) is powered the magnetic field that produces by the effect of electromagnetic force
(7) direction movement is so that shunt opening drive end (81) driving release lever action.
4. magnetictrip according to claim 1, it is characterised in that：During as device for under-voltage releasing equipment, described under-voltage drive
Moved end (52) and the release lever of breaker are oppositely arranged, and dynamic iron core (5) is compressed in the case where coil (2) is powered the electromagnetic force of generation
Spring (6), dynamic iron core (5) described in when under-voltage under the elastic force effect of spring (6) to the direction movement away from static iron core (7) from
And under-voltage drive end (52) is driven release lever action.
5. magnetictrip according to claim 1, it is characterised in that：Described coil block includes coil (2), dermoskeleton
Frame (3) and inner frame (4), described coil (2) are wound on outer skeleton (3), and described outer skeleton (3) is set in dynamic iron core
(5) and static iron core (7) outside, and outer skeleton (3) is installed in mounting bracket (13), and described inner frame (4) is set outside
Between skeleton (3) and dynamic iron core (5) and static iron core (7).
6. magnetictrip according to claim 1, it is characterised in that：The shunt opening drive end (81) of the push rod (8)
End is provided with pad (10) and two nuts (11), and two described nuts (11) are in be oppositely installed and pad (10) setting
Between two nuts (11).
7. magnetictrip according to claim 2, it is characterised in that；Described static iron core (7) includes being arranged on middle part
The second mounting hole (71) and be arranged on the limiting section (72) of end, described limiting section (72) is provided with and the second mounting hole
(71) spacing hole (721) for being arranged concentrically and being connected, the diameter of the spacing hole (721) is less than the straight of the second mounting hole (71)
Footpath is so as to form boss (722), limiting section (72) and third through-hole (921) phase being arranged in the middle part of the substrate (92) of yoke (9)
Coordinate.
8. magnetictrip according to claim 7, it is characterised in that：Described push rod (8) one end for being arranged with spring (6)
It is slidably matched through the second mounting hole (71) and spacing hole (721) and extends to limiting section (72) outside, the other end is dynamic with being arranged on
First mounting hole (51) of one end of iron core (5) is engaged, the two ends of the spring (6) respectively with around the first mounting hole (51)
End face and the end contact of boss (722) connect and cause spring (6) described in the second mounting hole (71) interior spaced motion
The other end of dynamic iron core (5) is slidably matched use through protecgulum (1) and with the fourth hole (101) on protecgulum (1).
9. magnetictrip according to claim 5, it is characterised in that：Described inner frame (4) is along first through hole
(31) the integrally formed structure that inwall bending is set, inner frame (4) after bending forms the second through hole (42) and gap
(41)。
10. magnetictrip according to claim 1, it is characterised in that：Described magnetictrip is arranged on pedestal
(12) on, described pedestal (12) includes installation cavity (121), the limited wall (123) for being arranged on installation cavity (121) side and set
Back-off (122) on the wall of installation cavity (121) side, described mounting bracket (13) is arranged in installation cavity (121) and yoke (9)
The side wall of magnetic wall (91) and installation cavity (121) be oppositely arranged, the substrate (92) of the yoke (9) is corresponding with limited wall (123)
Set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621373978.3U CN206363972U (en) | 2016-12-15 | 2016-12-15 | Magnetictrip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621373978.3U CN206363972U (en) | 2016-12-15 | 2016-12-15 | Magnetictrip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206363972U true CN206363972U (en) | 2017-07-28 |
Family
ID=59373956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621373978.3U Active CN206363972U (en) | 2016-12-15 | 2016-12-15 | Magnetictrip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206363972U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108987206A (en) * | 2018-09-13 | 2018-12-11 | 温州永奇电气科技有限公司 | Buckle releaser shell and buckle releaser with the shell |
| CN109712850A (en) * | 2017-10-25 | 2019-05-03 | 浙江正泰电器股份有限公司 | Electromagnetic trip device assembly |
-
2016
- 2016-12-15 CN CN201621373978.3U patent/CN206363972U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109712850A (en) * | 2017-10-25 | 2019-05-03 | 浙江正泰电器股份有限公司 | Electromagnetic trip device assembly |
| CN109712850B (en) * | 2017-10-25 | 2024-05-14 | 浙江正泰电器股份有限公司 | Electromagnetic release assembly |
| CN108987206A (en) * | 2018-09-13 | 2018-12-11 | 温州永奇电气科技有限公司 | Buckle releaser shell and buckle releaser with the shell |
| CN108987206B (en) * | 2018-09-13 | 2024-07-09 | 温州永奇电气科技有限公司 | Release shell and release with same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206363972U (en) | Magnetictrip | |
| CN205335193U (en) | Hot not trip gear that reports to police that transships of circuit breaker | |
| CN102568934B (en) | Central locked straight running alternating-current contactor | |
| CN200969327Y (en) | Magnetic bar on-off device | |
| CN101409131B (en) | Electro-magnet manual release apparatus for brake | |
| CN203560339U (en) | Electromagnetic type brake | |
| CN203456343U (en) | Mechanical interlocking device for air circuit breaker | |
| CN205564627U (en) | Permanent magnetism operating device's manual minute brake gear | |
| CN207517635U (en) | High reliability permanent magnetism device for under-voltage releasing equipment | |
| CN203386690U (en) | A low-voltage breaker buckle-releasing apparatus with reinforced insulation | |
| CN206076183U (en) | A kind of bistable state trip gear of breaker operation mechanism | |
| CN202117423U (en) | Photoelectric sensing electromagnetic lock | |
| CN201780939U (en) | Low-energy over current tripping device | |
| CN106328455B (en) | A kind of bistable state trip gear of breaker operation mechanism | |
| CN101026041A (en) | Permanent-magnetic driven low-voltage air switch with manual breaker | |
| CN202977336U (en) | Shunt release for circuit breakers | |
| CN203895394U (en) | Circuit breaker anti-interference electricity device | |
| CN103871791A (en) | Shunt release for circuit breakers | |
| CN104835697B (en) | A kind of trip gear of adjustable instantaneous characteristic for breaker of plastic casing | |
| CN203179807U (en) | Relay | |
| CN201017779Y (en) | Permanent magnetism driving low pressure air switch | |
| CN209515575U (en) | The magnetic of electromagnetic relay keeps structure | |
| CN202230935U (en) | Interlocking device of double isolation switches and front cabinet door | |
| CN102956403A (en) | Straight-movement AC(Alternating Current) contactor with lock catch arranged at center | |
| CN204927211U (en) | Remote operation's circuit breaker promptly divides brake gear |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |