CN1677592A - Switch device - Google Patents
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- Publication number
- CN1677592A CN1677592A CN 200510062952 CN200510062952A CN1677592A CN 1677592 A CN1677592 A CN 1677592A CN 200510062952 CN200510062952 CN 200510062952 CN 200510062952 A CN200510062952 A CN 200510062952A CN 1677592 A CN1677592 A CN 1677592A
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- pressed
- contact
- cover
- projection
- lower casing
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Abstract
The invention provides a switching device of a pressing operation type which can always be operated smoothly and of which waterproofing will not be damaged for over a long term. A cover member 10 is pressed into and fixed to the upper end part in a contact housing part 2, and a flat plate part 11a of a waterproofing rubber cover 11, which is placed on this cover member 10 and on the peripheral part of an aperture edge 2a of the lower case 1 is pressed down by the upper case 12 and pinched. A plurality of a locking ribs 10c are protrusively installed at the upper face of the cover member 10 and these locking ribs 10c are kept, by being fitted into the waterproofing rubber cover 11. Furthermore, a swelling part 11b of the waterproofing rubber cover 11 is adhered and fixed to the tip part of the pressed protrusion 7 of a slider 6, and a pressed protrusion 7 is inserted through a guide hole 10a of the cover member 10 and its elevating movement is guided. A movable contact 8 is mounted on the slider 6, and this movable contact 8 is contacted with and separated from the fixed contacts 3-5, in the contact housing part 2 accompanied by the elevating movement of the slider 6.
Description
Technical field
The present invention relates to a kind of by contact portion is formed the pressing operation type switching device that hermetically-sealed construction improves water proofing property.
Background technology
The known structure of example in the past as this kind switching device, the waterproof part that constitutes by rubber etc. for the contact resettlement section configuration that is located at lid sealing on the lower casing, periphery with lower casing and this waterproof part of upper casing clamping, simultaneously will be from the through hole of the upper casing bellying of this outstanding waterproof part outwardly, closely be fixed on the projection that is pressed of slide block (for example, with reference to patent documentation 1).In switching device so, internal fixation is provided with fixed contact in the contact resettlement section of lower casing, and the slide block that travelling contact is installed liftably remains on the lower casing.If this projection that is pressed of pressing operation, slide block just descends, if remove operating physical force, by being assembled in the ring spring in the contact resettlement section, slide block just rises to original height and position.In addition, by lifting action along with slide block, in the contact resettlement section, travelling contact and fixed contact contact separation, the contact that carries out switching device switches.
In the switching device that so constitutes, owing to use the periphery of the waterproof part that the lower casing clamping is made of rubber etc., cover the peristome of contact resettlement section, can prevent that therefore moisture from invading to the contact resettlement section, realize the high hermetically-sealed construction of water proofing property.In addition, even owing to, do not influence water proofing property with the big footpathization of dome-type bellying yet; therefore for corresponding with long actuating length; even be pressed under the situation of projection forming long size,, also can guarantee mechanical strength by form this projection that is pressed with enough particle sizes.
Patent documentation 1: the spy open the 2003-288820 communique (the 4th～5 page, Fig. 2)
Above-mentioned switching device in the past, by using the periphery of the waterproof part that the lower casing clamping is made of the rubber of lid sealed contacts resettlement section etc., realize high water proofing property, but because this waterproof part only is the fixedly state of periphery, therefore when the lifting of the projection that is pressed, the roughly whole zone beyond the waterproof part periphery can strain.Therefore, at the periphery of the waterproof part of using the lower casing clamping, whenever when lifting is pressed projection, working tension is if lifting action so repeatedly has the misgivings of the water proofing property of undermining.
In addition, in above-mentioned switching device in the past, formation makes the formation of slide block lifting as guiding face with the inwall of contact resettlement section, but a plurality of places at the slide block body except that the projection that is pressed, since difficult strict set with the inwall of contact resettlement section between the gap, therefore in this gap, need some and have more than needed.As a result, it is loosening to worry that the slide block body produces in the contact resettlement section easily, and slider tilt when lifting can not be moved smoothly.
Summary of the invention
The present invention proposes in view of above present situation, and its purpose is to provide a kind of and can moves smoothly all the time, can not damage the pressing operation type switching device of water proofing property simultaneously for a long time.
For reaching above-mentioned purpose, in switching device of the present invention, have: lower casing is provided with the contact resettlement section with openend; Fixed contact is provided in the described contact resettlement section; Slide block upright is established the projection that is pressed, and liftably remains on the described lower casing, travelling contact, along with the lifting action and the described fixed contact contact separation of slide block; Cover has the guide hole that liftably guides the described projection that is pressed, and is buckled in the described openend of described lower casing; Waterproof part constitutes by having bellying that closely is fixed in the described projected front ends portion that is pressed and the elastomeric material that is positioned in the flat part on the described cover; Upper casing has and makes the described outstanding through hole of projection and described bellying that is pressed, and covers on described lower casing.And, the described flat part of clamping between described upper casing and described cover.
So, if the flat part of the waterproof part that mounting is made of the rubber elastomeric material on the cover of the openend that is fixed on lower casing, push down by utilizing upper casing, because even bellying is along with the lifting action strain of the projection that is pressed, therefore flat part is distortion hardly also, also hardly to the flat part working tension of waterproof part.Thereby even be pressed projection lifting action repeatedly, the also misgivings of harmless water proofing property can the high water proofing property of long term maintenance.In addition, because than the inwall of the guide hole that is easier to straitly to set cover and the gap between the projection of being pressed, guide the lifting action of the projection that is pressed by this guide hole, therefore even the gap between the inwall of contact resettlement section and slide block body has more than needed, owing to guide the projection that is pressed really, the misgivings of also not having slider tilt when lifting can be expected lifting action smoothly all the time.
Above-mentioned switching device, preferably the described flat part of mounting on the described peristome periphery of described cover and described lower casing thus, can be realized more reliable water proofing property.
In addition, above-mentioned switching device, preferably on either party of described cover and described flat part, the buckle rib is set, make this buckle rib be pressed into any the opposing party, thus, even because of scale error etc. weakens the chucking power of the flat part between upper casing and the cover, because also fixed cap flat part on this cover really, therefore when slide block (projection is pressed) lifting, be not easy periphery working tension to waterproof part.
In addition, in above-mentioned switching device, described cover is fixed on the method on the described openend of described lower casing, can suitably select, if be fixed in the described contact resettlement section but described cover is pressed into, then can very simply cover be fixed on assigned position, can improve assembleability, therefore preferred this method.
Pressing operation type switching device of the present invention, utilize upper casing to push down the flat part of the waterproof part on the cover that clamping is positioned in the openend that is fixed in lower casing, even the projection that is pressed of lifting slider, also hardly to the flat part working tension of waterproof part, the lifting action of the projection that therefore promptly is pressed repeatedly, the also misgivings of harmless water proofing property.In addition, owing to can guide the lifting action of the projection that is pressed really, therefore there are not the misgivings of slider tilt when lifting by the guide hole of cover yet.So, can expect lifting action smoothly all the time, the switching device that does not damage the high reliability of water proofing property for a long time is provided simultaneously.
Description of drawings
Fig. 1 is the exploded perspective view of the switching device of the 1st execution mode of the present invention.
Profile when Fig. 2 is the not operation of this switching device.
Profile when Fig. 3 is the pressing operation of this switching device.
Fig. 4 is the vertical view of the slide block that has of this switching device.
Fig. 5 is the vertical view of the lower casing that has of this switching device.
Fig. 6 is the cutaway drawing of the internal structure of this lower casing of expression.
Fig. 7 is the profile of expression cover with respect to the fixed structure of this lower casing.
Fig. 8 is the stereogram of the switching device of the 2nd execution mode of the present invention.
Profile when Fig. 9 is the not operation of this switching device.
Among the figure: 1-lower casing, 1b-groove, 1c-stage portion, 2-contact resettlement section, 2a-openend, 3～5, the 14-fixed contact, 3a～5a-portion of terminal, 6-slide block, 6a-body, the 7-projection that is pressed, 8, the 15-travelling contact, 8a～8c-contact portion, 9-ring spring (back-moving spring), 10-cover, 10a-guide hole, the 10b-buckling piece, 10c-buckle rib, 11-water proof rubber lid (waterproof part), the 11a-flat part, 11b-bellying, 12-upper casing, the 12a-through hole, 12b-connecting hole, 13-lever, the 13a-rotation section, the 16-force application spring, 17-lead-in wire, 18-encapsulating material.
Embodiment
With reference to the description of drawings execution mode, Fig. 1 is the exploded perspective view of the switching device of the 1st execution mode of the present invention, profile when Fig. 2 is the not operation of this switching device, profile when Fig. 3 is the pressing operation of this switching device, Fig. 4 is the vertical view of the slide block that has of this switching device, Fig. 5 is the vertical view of the lower casing that has of this switching device, and Fig. 6 is the cutaway drawing of the internal structure of this lower casing of expression, and Fig. 7 is the profile of expression with respect to the fixed structure of the cover of this lower casing.
Fig. 1～pressing operation type switching device shown in Figure 3 for example is the switching device that uses as the vehicle mounted microswitch, and main composition comprises: lower casing 1 is provided with the contact resettlement section 2 with openend 2a; 3 fixed contacts 3～5 utilize the produced by insert molding technology to be fixed on the lower casing 1, are provided in the described contact resettlement section in 2; Slide block 6 upright is provided with the projection 7 that is pressed, and liftably remains on the described lower casing 1; Be installed in the travelling contact 8 on this slide block 6; Ring spring 9 is configured in the contact resettlement section 2, slide block 6 is applied elastic force up all the time; Cover 10 has guide hole 10a and a pair of buckling piece 10b, is fixed on the described openend 2a of lower casing 1; Water proof rubber lid 11 has flat part 11a and dome-type bellying 11b; Upper casing 12 has through hole 12a, covers on lower casing 1; Lever 13 is used for from the top pressing operation projection 7 that is pressed.
If describe the formation of each one in detail, lower casing 1 is the synthetic resin of the box-shaped of top opening, the prominent a plurality of engaging protrusion 1a with inclined plane that establish on the outer wall of this lower casing 1.These engaging protrusion 1a is used to insert chimeric upper casing 12.In addition, as shown in Figure 6, on the inwall of the contact resettlement section 2 of lower casing 1, be formed for locating the groove 1b or the stage portion 1c of cover 10.
Fixed contact 3～5 by metallic plate constitutes extends upward from the base plate of lower casing 1, and the portion of terminal 3a～5a that partly prolongs from being embedded of each fixed contact 3～5 extends to the below of lower casing 1.In 3 fixed contacts 3～5, fixed contact 3,4 is longer, and fixed contact 5 is shorter, wears the hole 4b of lengthwise in fixed contact 4.
Travelling contact 8, by limber metallic plates such as U word shape bending phosphor bronzes and form, this travelling contact 8 has the 8a～8c of contact portion of ring-type, at each 8a～8c of contact portion in order to seek long lifetime, the riveted and fixed silver strip.Travelling contact 8 is installed in the hollow bulb 6b of slide block 6, and along with the lifting action of slide block 6, the 8a～8c of contact portion can be respectively and fixed contact 3～5 contact separations or slip.In addition, ring spring 9 with confined state be folded in body 6a near between the base plate of be pressed sidepiece of projection 7 and lower casing 1, this ring spring 9 applies elastic force to the bottom surface of the projection 7 that is pressed up all the time.
As shown in Figure 2, the flat part 11a of water proof rubber lid 11 is positioned on the openend 2a periphery of lower casing 1 and on the cover 10, pushed down by upper casing 12, in addition, in flat part 11a, the bottom surface of the part of clamping between tegmentum parts 10 and upper casing 12, described buckle rib 10c nips in many places.In addition, by top aperture is set at the bellying 11b of water proof rubber lid 11, utilize the elasticity of rubber, in aperture 11c, pass the bowl-shape top 7b of circle of the projection 7 that is pressed, the periphery of this aperture 11c is engaged with slot 7a, and bellying 11b closely is fixed on the leading section of the projection 7 that is pressed.
By the lever 13 that metallic plate constitutes, its anchor portion is pressed into and is fixed in the lower casing 1, and the rotation section 13a of free end side can be that fulcrum rotates ormal weight with bend 13b.This rotation section 13a is configured on the projection 7 that is pressed, if depress rotation section 13a, just is pressed into the projection 7 that is pressed, and slide block 6 descends.
Below, the action of the switching device that so constitutes is described, as shown in Figure 2, when not operation, because the effect by the ring spring 6 in the contact resettlement section 2 boosts slide block 6 upward, so the 8a of contact portion, 8b in the travelling contact 8 contact with the fixed contact 3,4 of long size respectively, conducting between portion of terminal 3a, 4a, but the fixed contact 5 of 8c of contact portion and short size keeps noncontacts.
Under this kind state, if because the rotation section 13a of lever 13 pushes the projection 7 that is pressed downwards, Yi Bian then make ring spring 9 compressions, one slider edge 6 descends, therefore as shown in Figure 3, the central portion strain of bellying 11b becomes concavity, and travelling contact 8 descends in contact resettlement section 2 simultaneously.As a result, though the 8a of contact portion keeps and the contacting of fixed contact 3, the 8b of contact portion form noncontacts with fixed contact 4, and the 8c of contact portion contacts with fixed contact 5 owing to move in the 4b of hole.Thus, to the conducting of cutting off between portion of terminal 3a, 4a, the state exchange of conducting between portion of terminal 3a, 5a.
In addition, if remove pressing operation from the rotation section 13a of the lever 13 that is pressed into the projection 7 that is pressed, because rotation section 13a is just by the original position that returns elastically own, and slide block 6 is pushed away on the recuperability of ring spring 9, projection that is pressed 7 or travelling contact 8 rise to height and position shown in Figure 2, the bellying 11b of concavity strain, also because of self elastic return to original dome-shaped.As a result, though the 8a of contact portion keeps and the contacting of fixed contact 3, the 8b of contact portion is owing to break away from the 4b of hole, recovers and the contacting of fixed contact 4, and the opposite 8c of contact portion turns back to contactless state owing to break away from the fixed contact 5 of weak point size.Thus, recover the conducting between portion of terminal 3a, 4a, cut off the conducting between portion of terminal 3a, 5a.
So, the switching device of present embodiment, because flat part 11a at mounting water proof rubber lid on the periphery of the openend 2a of lower casing and on the cover 10, and utilize upper casing to push down, even so along with the lifting action of the projection 7 that is pressed, bellying 11b strain, flat part 11a is distortion hardly also.And, because a plurality of buckle rib 10c of cover 10 bite in the bottom surface of flat part 11a,, also can lean against the 11a of fixed flat planar portion on the cover 10 even therefore weaken the chucking power to flat part 11a of 10 of upper casing 12 and covers because of scale error etc.Thereby, even be pressed projection 7 liftings, bellying 11a strain, also hardly water proof rubber is covered 11 flat part 11a working tension, therefore even be pressed projection 7 lifting action repeatedly, the also misgivings of harmless water proofing property can the high water proofing property of long term maintenance.In addition, in the present embodiment, the buckle rib 10c that is located on the cover 10 is pressed in the flat part 11a of water proof rubber lid 11, but also can be in contrast, forms the formation in the recess that the buckle rib that is located on the flat part 11a is pressed into be located on the cover 10.
In addition, in this switching device, because than the inwall of the guide hole 10a that is easier to straitly to set cover 10 and the gap between the projection 7 of being pressed, therefore can be by the be pressed lifting action of projection 7 of guide hole 10a high accuracy guiding.Therefore,,, therefore do not have the misgivings that slide block 6 tilts when lifting yet, can expect all the time lifting action smoothly owing to can reliably guide the projection 7 that is pressed even there is surplus in the gap between the body 6a of the inwall of contact resettlement section 2 and slide block 6.
In addition, this switching device, be pressed into cover 10 by the upper end in the contact resettlement section 2 of lower casing 1, and cap seal closes openend 2a, because when above-mentioned being pressed into, cover 10 is by the groove 1b of lower casing 1 or stage portion 1c positioning and fixing, therefore can the utmost point easily at assigned position fixed cap parts 10, can expect good assembleability.But, also can wait other method fixed cap parts 10 on lower casing 1 with riveted joint or welding.
In addition; in the present embodiment; for corresponding with long actuating length; consider and make the projection 7 long sizeizations that are pressed; form this projection 7 that is pressed with the enough particle sizes that can guarantee mechanical strength, but, do not need to implement water-proofing treatment between both 11a, 11b because dome-type bellying 11b is connected with flat part 11a; therefore even because of the overstriking projection 7 that is pressed makes the big footpathization of bellying 11b, water proofing property is also had no effect.
Fig. 8 is the stereogram of the switching device of the 2nd execution mode of the present invention, the profile when Fig. 9 is the not operation of this switching device, and the part corresponding with Fig. 1～Fig. 7 added prosign, and the repetitive description thereof will be omitted.
Fig. 8 and switching device shown in Figure 9, contact point structure and above-mentioned the 1st execution mode example differ widely.That is, in the present embodiment, with respect to the fixed contact 14 that fixedly is located in the contact resettlement section 2, travelling contact 15 hits (batting) contact, and assembling applies the force application spring 16 of elastic force all the time down to this travelling contact 15 in contact resettlement section 2.In addition, when not operation, travelling contact 15 remains on the on-state with fixed contact 14 butts, if but the downward pressing operation projection 7 that is pressed, Yi Bian compress ring spring 9, one slider edge 6 descends, because the swing part 15a of travelling contact 15 is driven by slide block 6, to the clockwise direction rotation of Fig. 9, Yi Bian therefore compress force application spring 16 1 edge height travelling contacts 15, break away from fixed contact 14, carry out switching to the contact of off-state.In addition, under above-mentioned off-state, if releasing is to the pressing operation power of the projection 7 that is pressed, because the ring spring 9 and the force application spring 16 of compression reset, therefore travelling contact 15 once more with fixed contact 14 butts, return on-state, the projection that is pressed 7 also rises to height and position shown in Figure 9
In the present embodiment; in addition, connect lead-in wire 17 at the portion of terminal 14a that extends from fixed contact 14 downwards, in order to protect this coupling part; constitute encapsulating material 18 (still, in Fig. 8, omitting diagram encapsulating material 18) at the bottom filling of lower casing 1 by resin etc.In addition, because (under cur) cut by heavy in the bottom of lower casing 1 when moulding, so the possibility that encapsulating material 18 is peeled off from lower casing 1 is little.
Claims (4)
1. a switching device is characterized in that,
Have:
Lower casing, it is provided with the contact resettlement section of band openend,
Fixed contact, it is provided in the described contact resettlement section,
Slide block, it can remain on the described lower casing up and down, and erects and be provided with the projection that is pressed,,
Travelling contact, its along with the lifting action of slide block with described fixed contact contact separation,
Cover, the described openend that it is fixed on described lower casing has the guide hole that can guide the described projection that is pressed up and down,
Waterproof part, it constitutes by having bellying that closely is fixed on the described projected front ends portion that is pressed and the elastomeric material that is positioned in the flat part on the described cover,
Upper casing, it covers on described lower casing, and has and make the described outstanding through hole of projection and described bellying that is pressed;
Wherein, the described flat part of clamping between described upper casing and described cover.
2. switching device as claimed in claim 1 is characterized in that: the described flat part of mounting on the described peristome periphery of described cover and described lower casing.
3. switching device as claimed in claim 1 or 2 is characterized in that: outstanding on any one party in described cover and described flat part the buckle rib being set, and this buckle rib is pressed among any the opposing party in described cover and the described flat part.
4. switching device as claimed in claim 1 or 2 is characterized in that: be pressed into described cover fixing in described contact resettlement section.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004109170 | 2004-04-01 | ||
| JP2004109170A JP4323363B2 (en) | 2004-04-01 | 2004-04-01 | Switch device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1677592A true CN1677592A (en) | 2005-10-05 |
| CN100342466C CN100342466C (en) | 2007-10-10 |
Family
ID=35050023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100629527A Active CN100342466C (en) | 2004-04-01 | 2005-03-31 | Switch device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4323363B2 (en) |
| CN (1) | CN100342466C (en) |
| TW (1) | TWI253660B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101329961B (en) * | 2007-06-20 | 2011-12-28 | 阿尔卑斯电气株式会社 | Push button switch device with lever |
| CN102436946A (en) * | 2010-09-09 | 2012-05-02 | 阿尔卑斯电气株式会社 | Switch device |
| CN103828004A (en) * | 2011-09-21 | 2014-05-28 | 美格电子工业株式会社 | Waterproof and dust protected switch |
| CN104025231A (en) * | 2012-02-23 | 2014-09-03 | 西铁城电子株式会社 | Pushbutton switch |
| CN104851663A (en) * | 2014-02-15 | 2015-08-19 | 德昌电机(深圳)有限公司 | Electric switch |
| CN104851723A (en) * | 2014-02-15 | 2015-08-19 | 德昌电机(深圳)有限公司 | Micro-switch |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI423860B (en) * | 2011-01-04 | 2014-01-21 | X Pole Prec Tools Inc | Dust tooling machine |
| CN102683067B (en) * | 2012-05-18 | 2015-03-11 | 明瀚科技(苏州)有限公司 | Waterproof type key switch |
| CN109637865B (en) * | 2018-12-29 | 2023-09-19 | 惠州冠泰电子有限公司 | Sliding switch |
| KR102118154B1 (en) * | 2020-02-03 | 2020-06-02 | 엠피아주식회사 | Self-generated switch system for dustproof and waterproof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3837779B2 (en) * | 1996-07-24 | 2006-10-25 | 松下電器産業株式会社 | Waterproof switch |
| JP4072365B2 (en) * | 2002-03-27 | 2008-04-09 | アルプス電気株式会社 | Sealed push switch |
-
2004
- 2004-04-01 JP JP2004109170A patent/JP4323363B2/en not_active Expired - Fee Related
-
2005
- 2005-03-31 CN CNB2005100629527A patent/CN100342466C/en active Active
- 2005-04-01 TW TW94110504A patent/TWI253660B/en active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101329961B (en) * | 2007-06-20 | 2011-12-28 | 阿尔卑斯电气株式会社 | Push button switch device with lever |
| CN102436946A (en) * | 2010-09-09 | 2012-05-02 | 阿尔卑斯电气株式会社 | Switch device |
| CN102436946B (en) * | 2010-09-09 | 2014-08-20 | 阿尔卑斯电气株式会社 | Switch device |
| CN103828004A (en) * | 2011-09-21 | 2014-05-28 | 美格电子工业株式会社 | Waterproof and dust protected switch |
| CN103828004B (en) * | 2011-09-21 | 2017-09-22 | 美格电子工业株式会社 | Water proof and dust proof is switched |
| CN104025231A (en) * | 2012-02-23 | 2014-09-03 | 西铁城电子株式会社 | Pushbutton switch |
| CN104025231B (en) * | 2012-02-23 | 2016-05-04 | 西铁城电子株式会社 | Key switch |
| CN104851663A (en) * | 2014-02-15 | 2015-08-19 | 德昌电机(深圳)有限公司 | Electric switch |
| CN104851723A (en) * | 2014-02-15 | 2015-08-19 | 德昌电机(深圳)有限公司 | Micro-switch |
| CN104851663B (en) * | 2014-02-15 | 2019-09-17 | 德昌电机(深圳)有限公司 | Electric switch |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI253660B (en) | 2006-04-21 |
| TW200535883A (en) | 2005-11-01 |
| JP2005294112A (en) | 2005-10-20 |
| JP4323363B2 (en) | 2009-09-02 |
| CN100342466C (en) | 2007-10-10 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Tokyo, Japan, Japan Patentee after: Alpine Alpine Company Address before: Tokyo, Japan, Japan Patentee before: Alps Electric Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder |