CN109786164A - A kind of roller switch of vehicle steering wheel - Google Patents
A kind of roller switch of vehicle steering wheel Download PDFInfo
- Publication number
- CN109786164A CN109786164A CN201711128550.1A CN201711128550A CN109786164A CN 109786164 A CN109786164 A CN 109786164A CN 201711128550 A CN201711128550 A CN 201711128550A CN 109786164 A CN109786164 A CN 109786164A
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- CN
- China
- Prior art keywords
- locating support
- rolling member
- ratchet
- steering wheel
- switch
- 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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Abstract
The invention discloses the roller switches of vehicle steering wheel, including locating support, rotor block, microswitch and signal toggle switch, the rotor block is rotatably provided on locating support, it includes rolling member and the transmission shaft and ratchet for following rolling member rotation, the locating support is arranged in mounting groove by the way that shaft is deflectable, and the button of stirring of signal toggle switch is arranged on the motion path of ratchet, the microswitch is arranged in locating support bottom.It is arranged by above structure, on the one hand, directly realize that the signal of signal toggle switch controls by ratchet, simple control structure reduces ratio error and journey error, and transmission efficiency is high, occupies little space, cost is relatively low；On the other hand, it is controlled by the opening and closing that locating support deflection pushes existing microswitch, increases the use function of roller switch, so that roller switch is provided simultaneously with infinite scroll control and push the effect of control, meet the use demand of client.
Description
Technical field
The present invention relates to a kind of automobile electronic switchs, and in particular to a kind of roller switch of vehicle steering wheel.
Background technique
With the development of the rapid advances of modern science and technology technology, especially auto technology, automobile has been not only a kind of fortune
Defeated tool just gradually develops to entertainment orientation, but we cannot ignore safety while improving entertainment, so steering wheel is more
Functional switch comes into being.Important man-machine interface of the vehicle steering wheel as automobile, is integrated with including loudspeaker, entertainment systems volume
Increase and decrease and pattern switching and car running computer control, cruise control, the functions such as gear control.According to growth requirement, such as in order to
The operation of the volume increase and decrease or upper and lower selection function that make entertainment systems is more convenient and smooth, increases nothing on the steering wheel
The special construction for limiting idler wheel rotates the corresponding function control to realize entertainment systems by operated roller, easy to operate, but at present
Common situation is that most of unlimited idler wheel needs encoder sequence, and at high cost, control structure is complicated.
Existing a kind of unlimited roller switch applied on automobile in the market, including fixed bracket, idler wheel, detection are opened
It closes, and multi-stage gear structure is formed by first gear and second gear；The idler wheel can be rotated by the connecting shaft at its both ends
Setting is on fixed bracket, and the connecting shaft of first gear and idler wheel, which links, to be arranged, wherein second gear is with upper and lower part tooth
The double-layer gear structure of wheel, the upper gear of second gear are engaged with first gear, and gear connecting detection switch in its underpart passes through
Idler wheel rotation drives first gear to engage with second gear, realizes signal control by second gear detection trigger switch motion, no
Band encoder sequence is needed, and can realize that infinite scroll operates.It can be seen that it from the structure and principle of above-mentioned unlimited idler wheel
Have the following problems: existing unlimited roller switch can only realize scroll operation, and cannot achieve pushing function, using function compared with
To be single, cannot more preferably meet customer need；And the kind of drive using multi-stage gear structure, structure is complicated, occupied space
Greatly, manufacturing cost is high, and the requirement of assembly precision is high, and entire movement transmitting stroke increases, and makes driving error is accumulative to increase, control essence
Exactness is poor.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is that limitless wheel in the prior art is overcome to get away the drive mechanism of pass
The problem of complexity, there are driving error, manufacturing cost height, and use has a single function.
To solve above-mentioned technological deficiency, the present invention provides a kind of roller switch of vehicle steering wheel, is installed on steering wheel
In mounting groove, comprising: can turn by the deflectable locating support being arranged in the mounting groove of shaft, and by connection structure
The dynamic rotor block being arranged on the locating support, the rotor block includes the rolling member with accommodating cavity, and is installed on
In the accommodating cavity and with the inner core member of the rolling member synchronization action, the inner core member includes stretching out the transmission of the installation cavity
Axis and the ratchet being arranged with the transmission shaft coaxial linkage；Further include:
Signal toggle switch, the corresponding ratchet are installed on the side of the locating support comprising signaling switch sheet
Body and button is stirred, the button of stirring is arranged on the motion path of the ratchet, and the signaling switch ontology is at described group
Dynamic button is opened when being contacted and pressed by the ratchet and issues control signal；
Microswitch is set to the bottom of the locating support, pushes when locating support stress deflection described micro-
The trigger button of dynamic switch.
As a preferred embodiment, the axis hole for cooperating transmitting torque with the transmission shaft is formed on the ratchet, it is described
Transmission shaft drives the ratchet wheel by the axis hole.
As a preferred embodiment, the button of stirring is connected on the signaling switch ontology, reciprocally swings
Stir needle, described to stir needle corresponding up and down with the ratchet.
As a preferred embodiment, the chamfered shape of the rolling member is in spherical, the circumferential surface setting of the rolling member
There is the friction structure convenient for operation.
As a preferred embodiment, the locating support includes rack body, by rack body towards the rolling member both ends
Direction extends vertically and two opposite support arms, and axially takes shape in the two of the rack body two sides along the rolling member
A shaft, the cell wall of the mounting groove is equipped with the connecting hole with shaft cooperation rotation, so that the locating support
It can rotate around the axis.
As a preferred embodiment, the bottom side of the locating support molding that extends outwardly compresses plate, the fine motion
The trigger button of switch with described to compress plate opposite.
As a preferred embodiment, the fixation circular shaft being set on axial one end of the rolling member, and be set to described
The transmission shaft on the axial other end of rolling member, the rolling member are connected by the fixed circular shaft and transmission shaft rotation
It connects between two support arms.
As a preferred embodiment, the connection structure further include: be separately formed on two support arms and axial
Opposite circular hole and semicircular slotted hole, the fixed circular shaft are rotationally connected in the circular hole, and the transmission shaft is rotationally connected with
In the semicircular slotted hole.
As a preferred embodiment, there is the rolling member one end of the fixed circular shaft to form circular groove, described
Circular groove inner periphery is disposed with several V-shaped grooves, and the locating support is equipped with elastic slice close to the side of the circular groove, institute
The one end for stating elastic slice extends against between several V-shaped grooves.
Technical solution of the present invention has the advantages that
1. rotor block is rotatably provided on locating support in the roller switch of vehicle steering wheel provided by the invention,
It includes rolling member and the transmission shaft and ratchet for following rolling member rotation, and the locating support is being pacified by the deflectable setting of shaft
In tankage, pressing action can be realized in stress, wherein the movement of signal toggle switch stirred button and the ratchet is set
On path, microswitch is arranged in locating support bottom.Using the technical program, on the one hand, directly pass through the ratchet wheel
Button actions are stirred described in pressing to contact, and are realized the signal control of signal toggle switch, are eliminated encoder sequence setting, letter
Change control structure, without the stage-geared mode using fissionization, reduce ratio error and journey error, is driven
It is high-efficient, and structure is simple, occupies little space, cost is relatively low；On the other hand, by from one side of rotor block on locating support
Apply certain lower pressure, so that locating support deflection is pushed the trigger button of the microswitch, realize the opening and closing of microswitch
Control, thus using microswitch increase roller switch use function, make roller switch be provided simultaneously with infinite scroll control with
The effect of control is pushed, the scope of application is wider, meets the use demand of client.
2. in the roller switch of vehicle steering wheel provided by the invention, the button of stirring is to be connected to the signaling switch
On ontology, reciprocally what is swung stirs needle, and described to stir needle corresponding up and down with the ratchet.This structure setting, the ratchet
It is pressed in rotational travel and stirs that needle is swung and the ratchet is by transmission shaft and rotor block synchronization action, therefore,
The movement each time for stirring needle corresponds to the scroll operation of the rotor block, and is issued and controlled by the signaling switch ontology
Signal processed realizes the rolling control function of rotor block.
3. in the roller switch of vehicle steering wheel provided by the invention, the connection structure includes being separately positioned on rolling member
Axial ends fixation circular shaft and transmission shaft, and be separately formed on two support arms and axially opposing circular hole and half
In round slot, wherein the fixed circular shaft is rotationally connected in the circular hole, and the transmission shaft is rotationally connected with the semicircle
Shape slot realizes the effect of the both ends locating rotation of the rolling member by above-mentioned set-up mode, and cooperation stable transmission is reliable.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the schematic perspective view of the roller switch of vehicle steering wheel of the invention；
Fig. 2 is the schematic diagram of the section structure of roller switch shown in FIG. 1；
Fig. 3 is the separate structure schematic diagram of roller switch shown in FIG. 1；
Fig. 4 is the structural schematic diagram of roller switch side surface direction of the invention, specifically shown shaft；
Description of symbols: 1- locating support, 11- support arm, 111- circular hole, 112- semicircular slotted hole, 12- shaft, 13-
Compress plate, 2- rolling member, 21- friction structure, the fixed circular shaft of 22-, 23- circular groove, 3- inner core member, 31- transmission shaft, 32- spine
Wheel, 4- signal toggle switch, 41- stir button, 5- microswitch, 6- elastic slice.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " first ", " second ", " third " are used for description purposes only,
It is not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
As long as in addition, the non-structure each other of technical characteristic involved in invention described below different embodiments
It can be combined with each other at conflict.
Embodiment 1
The present embodiment is specifically described with reference to the accompanying drawing:
The present embodiment provides a kind of roller switches of vehicle steering wheel as shown in Figs 1-4, are installed on the installation of steering wheel
In slot, comprising: can be rotated by the deflectable locating support 1 being arranged in the mounting groove of shaft, and by connection structure
Rotor block on the locating support 1 is set, and the rotor block includes the rolling member 2 with accommodating cavity, and is installed on
In the accommodating cavity and with the inner core member 3 of 2 synchronization action of rolling member, the inner core member 3 includes stretching out the installation cavity
Transmission shaft 31 and the ratchet 32 being arranged with 31 coaxial linkage of transmission shaft；Further include:
Signal toggle switch 4, the corresponding ratchet 32 are installed on the side of the locating support 1 comprising signal is opened
It closes ontology and stirs button 41, the button 41 of stirring is arranged on the motion path of the ratchet 32, the signaling switch sheet
Body is opened in described stir when button 41 is contacted and pressed by the ratchet 32 and issues control signal；
Microswitch 5 is set to the bottom of the locating support 1, when 1 stress of locating support deflection described in pushing
The trigger button of microswitch 5.
Above-mentioned is in embodiment, and rotor block is rotatably provided on locating support comprising rolling member 2 and follows rolling
The transmission shaft 31 and ratchet 32 that moving part 2 rotates, the locating support 1 are arranged in mounting groove by the way that shaft is deflectable, and stress can
Realize pressing action, wherein the button 41 of stirring of the signal toggle switch 4 is arranged on the motion path of the ratchet 31,
The microswitch 5 is arranged in locating support bottom.Using the technical program, on the one hand, directly by the spine 31 rotate come
The movement of button 41 is stirred described in contact pressing, is realized the signal control of signal toggle switch, is eliminated encoder sequence setting, letter
Change control structure, without the stage-geared mode using fissionization, reduce ratio error and journey error, is driven
It is high-efficient, and structure is simple, occupies little space, cost is relatively low；On the other hand, by from one side of rotor block to locating support 1
It is upper to apply certain lower pressure, so that the deflection of locating support 1 is pushed the trigger button of the microswitch 5, realizes microswitch 5
Opening and closing control makes roller switch be provided simultaneously with infinite scroll control to increase the use function of roller switch using microswitch
System and the effect for pushing control, the scope of application is wider, meets the use demand of client.
Make further preferably, to form to cooperate with the transmission shaft 31 on the ratchet 32 and transmit according to above embodiment
The axis hole of torque, the transmission shaft drive the ratchet 32 to rotate by the axis hole.This structure setting, the rotation of rolling member
Trend is transferred on ratchet by transmission shaft, realizes the synchronous rotation of rolling member 2 and ratchet 32, and the axis of the transmission shaft 31
The axis collinear of line and the ratchet 32 directly drives the movement of signal toggle switch by ratchet, and structure is simple, transmission efficiency
It is high.
As shown in figure 3, it is described stir button 31 be connected on the signaling switch ontology, stirring of reciprocally swinging
Needle, the needle of stirring is corresponding with about 32 ratchet, has the function of automatically reseting.This structure setting, the ratchet
It is pressed in rotational travel and stirs the needle and swung, wherein the ratchet 32 is synchronous with rolling member 2 dynamic by transmission shaft 31
Make, therefore, the movement each time for stirring needle corresponds to the scroll operation of the rolling member 2, and by the signaling switch sheet
Body issues control signal according to the movement for stirring needle, the signal toggle switch of the present embodiment by with external control circuit board phase
Even, it realizes and rolls control function.
It is non-slip in order to which rolling member 2 described in manual toggle is more convenient, as shown in Figure 1, the chamfered shape of the rolling member 2
In friction structure 21 spherical, that the circumferential surface of the rolling member 2 is provided with convenient for operation, good appearance increases CONTACT WITH FRICTION,
Stir that feeling is better.
It elaborates below in conjunction with the specific structure of the locating support of Fig. 2-4 pairs of this examples:
The locating support 1 include rack body, extended vertically by rack body towards 21 direction of both ends of rolling member and
Two opposite support arms 11, and along axial two shafts for taking shape in the rack body two sides of the rolling member 2
12, the cell wall of the mounting groove is equipped with the connecting hole with the shaft 12 cooperation rotation, as Fig. 4 shows the locating support
The local mounting structure of one end is rotationally connected in the connecting hole by the shaft 12, so that the locating support 1 can be around
Axis rotation, that is, realize the depression of locating support.
It should be noted that in the mounting structure of locating support 1 in the present embodiment and mounting groove, although in the accompanying drawings simultaneously
It does not show, but those skilled in the art can be understood by being described below, the mounting groove is to be set on steering wheel panel to use
In the groove of installation rolling switch, the locating support 1 is rotationally connected in the mounting groove by two shafts 12, the peace
The displacement space for the locating support 1 rotation is reserved in tankage；Further, according to the installation site of locating support, institute
It states microswitch 5 and also cooperates and be fixed on the installation trench bottom and be oppositely arranged with about 1 locating support, correspondingly, can
Reset spring is set between the mounting groove and the locating support 1, when the locating support 1 is by certain push around axis
Certain angle is deflected towards mounting groove bottom direction, to press the movement of microswitch 5, and disappears or becomes smaller in pressure
When, it can be resetted in time under action of reset spring, to unclamp pressing to microswitch 5, design is reasonable, reliable transmission,
The opening and closing control that microswitch is realized by the deflection action of locating support, increases the use function of roller switch.
It is further preferred that the bottom side of the locating support 1 extends outwardly, molding compresses plate 13, and the fine motion is opened
The trigger button for closing 5 compresses plate 13 relatively with described, therefore, compresses plate 13 by described when 1 stress of locating support deflects
Microswitch 5 is triggered to act.
It elaborates below with reference to the set-up mode of Fig. 1-3 pairs of connection structures:
The connection structure includes: the fixation circular shaft 22 being set on axial one end of the rolling member 2, and is set to institute
The transmission shaft 31 on the axial other end of rolling member 2 is stated, the fixed circular shaft and the transmission shaft are axially aligned, described
Rolling member is rotatably connected between two support arms 11 by the fixed circular shaft 22 and the transmission shaft 31.It is further excellent
Choosing, the connection structure further include: be separately formed on two support arms 11 and axially opposing circular hole 111 and half
Round slot 112, the fixed circular shaft 22 are rotationally connected in the circular hole 111, and the transmission shaft 31 is rotationally connected with described
In semicircular slotted hole 112, by above-mentioned set-up mode, the effect of the both ends locating rotation of the rolling member, cooperation transmission are realized
It is reliable and stable.
In the present embodiment, as shown in figure 3, the rolling member 2 that there is one end of the fixed circular shaft to form is round recessed
Slot 23,23 inner periphery of circular groove are disposed with several V-shaped grooves, and the locating support 1 is close to the side of the circular groove
Elastic slice 6 is installed, one end of the elastic slice 6 extends against between several V-shaped grooves, therefore, when the rotation rolling member
When, the rolling feel that can feel the rolling member 2 is contacted with the cooperation of several V-shaped grooves by the elastic slice 6, is promoted and rolls control
The accuracy of system.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (9)
1. a kind of roller switch of vehicle steering wheel, is installed in the mounting groove of steering wheel characterized by comprising by turning
The deflectable locating support (1) being arranged in the mounting groove of axis, and the positioning is rotatably provided in by connection structure
Rotor block on bracket (1), the rotor block includes the rolling member (2) with accommodating cavity, and is installed on the accommodating cavity
Inner core member (3) interior and with the rolling member (2) synchronization action, the inner core member (3) includes the transmission for stretching out the installation cavity
Axis (31) and the ratchet (32) being arranged with the transmission shaft (31) coaxial linkage；Further include:
Signal toggle switch (4), the corresponding ratchet (32) are installed on the side of the locating support (1) comprising signal
It Switch main body and stirs button (41), described stir button (41) are arranged on the motion path of the ratchet (32), the letter
Number Switch main body is opened when button (41) is contacted and pressed by the ratchet (32) in described stir and issues control signal；
Microswitch (5), is set to the bottom of the locating support (1), pushes institute when the deflection of the locating support (1) stress
State the trigger button of microswitch (5).
2. the roller switch of vehicle steering wheel according to claim 1, it is characterised in that: formed on the ratchet (32)
Cooperate the axis hole of transmitting torque with the transmission shaft (31), the transmission shaft drives the ratchet (32) to turn by the axis hole
It is dynamic.
3. the roller switch of vehicle steering wheel according to claim 2, it is characterised in that: described to stir button (31) to connect
Connect the needle of stirring on the signaling switch ontology, reciprocally swung, it is described to stir needle and the ratchet (32) is corresponding up and down.
4. the roller switch of vehicle steering wheel according to claim 1, it is characterised in that: the profile of the rolling member (2)
Shape is in friction structure (21) spherical, that the circumferential surface of the rolling member (2) is provided with convenient for operation.
5. the roller switch of vehicle steering wheel according to claim 4, it is characterised in that: the locating support (1) includes
Rack body, is extended by rack body towards the rolling member (21) direction of both ends and two opposite support arms (11) vertically, with
And two shafts (12) of the rack body two sides are axially taken shape in along the rolling member, on the cell wall of the mounting groove
Equipped with the connecting hole with the shaft (12) cooperation rotation, so that the locating support (1) can rotate around the axis.
6. the roller switch of vehicle steering wheel according to claim 5, it is characterised in that: the bottom of the locating support (1)
The molding that extends outwardly of portion side compresses plate (13), the trigger button of the microswitch (4) and described to compress plate (13) opposite.
7. the roller switch of vehicle steering wheel according to claim 5, it is characterised in that: the connection structure includes: to set
The fixation circular shaft (22) being placed on axial one end of the rolling member (2), and it is set to the axial other end of the rolling member (2)
On the transmission shaft (31), the rolling member is rotatably connected on two by the fixed circular shaft (22) and the transmission shaft (31)
Between a support arm (11).
8. the roller switch of vehicle steering wheel according to claim 7, it is characterised in that: the connection structure further include:
It is separately formed on two support arms (11) and axially opposing circular hole (111) and semicircular slotted hole (112), it is described solid
Determine circular shaft (22) to be rotationally connected in the circular hole (111), the transmission shaft (31) is rotationally connected with the semicircular slotted hole
(112) in.
9. the roller switch of vehicle steering wheel according to claim 7, it is characterised in that: the rolling member (2) has institute
The one end for stating fixed circular shaft forms circular groove (23), and circular groove (23) inner periphery is disposed with several V-shaped grooves, described
Locating support (1) is equipped with elastic slice (6) close to the side of the circular groove, the elastic slice (6) if one end extend against in
It does between the V-shaped groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711128550.1A CN109786164A (en) | 2017-11-15 | 2017-11-15 | A kind of roller switch of vehicle steering wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711128550.1A CN109786164A (en) | 2017-11-15 | 2017-11-15 | A kind of roller switch of vehicle steering wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109786164A true CN109786164A (en) | 2019-05-21 |
Family
ID=66494310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711128550.1A Withdrawn CN109786164A (en) | 2017-11-15 | 2017-11-15 | A kind of roller switch of vehicle steering wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109786164A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111261446A (en) * | 2019-11-05 | 2020-06-09 | 浙江零跑科技有限公司 | Automobile steering wheel key part structure |
| CN111834159A (en) * | 2020-07-28 | 2020-10-27 | 重庆长安汽车股份有限公司 | Driving mode switch, driving mode switching system and vehicle |
| CN112086308A (en) * | 2019-06-13 | 2020-12-15 | 观致汽车有限公司 | Multifunctional multiplexing switch device for vehicle |
| WO2024096488A1 (en) * | 2022-10-31 | 2024-05-10 | 엘에스오토모티브테크놀로지스 주식회사 | Spherical rollover switch unit |
-
2017
- 2017-11-15 CN CN201711128550.1A patent/CN109786164A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112086308A (en) * | 2019-06-13 | 2020-12-15 | 观致汽车有限公司 | Multifunctional multiplexing switch device for vehicle |
| CN112086308B (en) * | 2019-06-13 | 2023-10-24 | 观致汽车有限公司 | Multifunctional multiplexing switch device for vehicle |
| CN111261446A (en) * | 2019-11-05 | 2020-06-09 | 浙江零跑科技有限公司 | Automobile steering wheel key part structure |
| CN111261446B (en) * | 2019-11-05 | 2021-11-09 | 浙江零跑科技股份有限公司 | Automobile steering wheel key part structure |
| CN111834159A (en) * | 2020-07-28 | 2020-10-27 | 重庆长安汽车股份有限公司 | Driving mode switch, driving mode switching system and vehicle |
| WO2024096488A1 (en) * | 2022-10-31 | 2024-05-10 | 엘에스오토모티브테크놀로지스 주식회사 | Spherical rollover switch unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190521 |