CN1267071A - Push switch - Google Patents
Push switch Download PDFInfo
- Publication number
- CN1267071A CN1267071A CN00102817A CN00102817A CN1267071A CN 1267071 A CN1267071 A CN 1267071A CN 00102817 A CN00102817 A CN 00102817A CN 00102817 A CN00102817 A CN 00102817A CN 1267071 A CN1267071 A CN 1267071A
- Authority
- CN
- China
- Prior art keywords
- movable contact
- place
- contact point
- axle sleeve
- push 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.)
- Granted
Links
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/50—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member
- H01H13/52—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member the contact returning to its original state immediately upon removal of operating force, e.g. bell-push switch
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2207/00—Connections
- H01H2207/032—Surface mounted component
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2215/00—Tactile feedback
- H01H2215/004—Collapsible dome or bubble
- H01H2215/006—Only mechanical function
Abstract
Provided is a movable contact structure in a push switch permitting a contact piece and a connecting portion in the movable contact to be formed long, capable of affording a stable click feeling, capable of reducing the size of the entire movable contact, and capable of preventing the occurrence of a metallic noise in operation for a rubber spring. The push switch comprises a box-shaped housing, a pair of fixed terminals fixed within the housing, a stem held slidably by inner side faces of the housing, a movable contact disposed above the fixed terminals so as to be operable in interlock with movement of the stem, and a rubber spring disposed between the movable contact and the stem, the rubber spring causing the movable contact to move into contact with and away from the fixed terminals in interlock with movement of the stem and causing the stem to return, the movable contact comprising a frame portion formed outside, a connecting portion extending from the frame portion, and a contact piece connected rockably to the frame portion through the connecting portion.
Description
The present invention relates to and particularly to dispose the structural arrangements of the movable contact point on the fixed terminal that is fixed on the enclosure interior place as the push switch of console switch use in various electronic installations.
Below with reference to Figure 11 and Figure 12, the movable contact point in a kind of push switch of prior art is described with structural arrangements.Wherein Figure 11 is the vertical view of this movable contact point of expression portion, and Figure 12 is the front elevation of this movable contact point of expression portion.
Movable contact point portion 13 is by rubber-like, by the material of bronze sheet or corrosion resistant plate etc., and can make its outside rounded substantially, is formed with cradle portion 13a in the form of a ring in its outside.Be formed with the hole 13b that is circular-arc at the central portion place of this cradle portion 13a, be formed with also at the central portion place of this hole 13b that the one end is connected described cradle portion 13a place by connecting portion 13c and the other end is the whole contact chip 13d that cuts.And the leading section of contact chip 13d is also implemented warpage according to the oblique angle of the inclination that makes progress substantially.This contact chip 13d can be provided with by the mode that described connecting portion 13c shakes at described cradle portion 13a place.The rounded planar shaped of described contact chip 13d, and describedly be circular-arc hole 13b and implement to be provided with along this circular contact chip 13d, be circular-arc hole 13b in its outside along this described cradle portion 13a in the form of a ring is being set.
For the occasion that described movable contact point portion 13 is used in push switch, can be by to the fixed terminal that is fixed on inside bottom surface not shown, known housing place, dispose described movable contact point portion 13, and unshowned in the installation diagram, known rubber-like spring members and axle sleeve rod unit construct this push switch of the prior art.
Yet structural arrangements at aforesaid this original, the movable contact point that is arranged in push switch, the contact chip 13 that is arranged on movable contact point portion 13 places with size in length and breadth substantially identical mode form circle, keeping certain interval to each other, and the corresponding circle of a butt contact minister degree with the configuration direction is set on the fixed terminal of configuration relatively, so it is bigger to have the overall dimension of contact chip 13d, and then there is the size that makes movable contact point portion 13 to become big problem.
And, the contact chip 13d that is arranged on movable contact point portion 13 places is planar shaped, so 13 that connect with this movable contact point portion, contact chip 13d and contact point portion on the fixed terminal are produced contact, the abutting part of the rubber-like spring members of separating action also is planar shaped, therefore the rubber-like spring members will and contact chip between produce mutually and connect airtight, thereby in operating process, can produce owing to connecting airtight or throw off bad problems such as producing the metal strike note each other.
The present invention is intended to address the above problem, its purpose just provides a kind of movable contact point structural arrangements, this configuration can prolong the contact chip in the movable contact point portion and the length of connecting portion, to obtain stable snapping sense, and can make whole movable contact point configuration miniaturization, and can prevent the metallic noise that to rubber-like spring members implementation and operation the time, produces.
As first solution that addresses the above problem usefulness, the invention provides a kind of push switch, it has the housing that is box-shaped, be fixedly mounted on a pair of fixed terminal at this enclosure interior place, slidably remain on the axle sleeve rod unit at the medial surface place of described housing, be configured in movable contact point portion on the described fixed terminal according to mobile phase linkage manner with this axle sleeve rod unit, and be configured between this movable contact point portion and the described axle sleeve rod unit, be used for the described movable contact point portion of the mobile phase of described axle sleeve rod unit interlock and described fixed terminal between produce and contact, the rubber-like spring members that separates and described axle sleeve rod unit is restored, and described movable contact point portion is by the cradle portion that is formed on the outside, extend the connecting portion that is arranged on this cradle portion place, and constitute with the contact chip that can the mode of shaking be arranged on described cradle portion place by described connecting portion, the described contact chip that is arranged on movable contact point portion place is according to the length that is provided with along described connecting portion on the direction, than forming along with described connecting portion the short mode of length on the direction that direction intersects vertically being set.
As second solution that addresses the above problem usefulness, the present invention also provides a kind of push switch, it can also further make described movable contact point portion be formed by rubber-like metallic plate etc., central portion place in described cradle portion is provided with the hole that is circular-arc, and forms the described contact chip that integral cutting is opened at the central portion place in this hole by described connecting portion on metallic plate.
As the 3rd solution that addresses the above problem usefulness, the present invention also provides a kind of push switch, and it can also further make the described contact chip in the described movable contact point portion form ellipse.
As the 4th solution that addresses the above problem usefulness, the present invention also provides a kind of push switch, and it can also form the jut that connects with described rubber-like spring members opposite face place at the described contact chip place in the described movable contact point portion.
Describe below with reference to the push switch of accompanying drawing first embodiment of the invention.
Fig. 1 is the vertical view of a kind of push switch of expression first embodiment of the invention.
Fig. 2 is the front elevation of a kind of push switch of expression first embodiment of the invention.
Profile when Fig. 3 cuts open for the line 3-3 of expression in Fig. 1.
Profile when Fig. 4 cuts open for the line 4-4 of expression in Fig. 1.
Key diagram when Fig. 5 makes the rubber-like spring members be in the warpage state for expression by as shown in Figure 4 initial condition shifting axle loop bar parts.
Fig. 6 is the vertical view of the housing in the expression first embodiment of the invention.
Fig. 7 is the vertical view of the movable contact point portion of expression in the first embodiment of the invention.
Fig. 8 is the front elevation of the movable contact point portion of expression in the first embodiment of the invention.
Fig. 9 is the ground plan of the axle sleeve rod unit in the expression first embodiment of the invention.
Profile when Figure 10 cuts open for the line 10-10 of expression in Fig. 9.
Figure 11 is the vertical view of expression as the movable contact point portion in a kind of push switch of prior art.
Figure 12 is the front elevation of expression as the movable contact point portion in a kind of push switch of prior art.
Lateral direction to described housing 1 is extended the portion of terminal 2c that is provided with, by be provided with the mode of several joggling parts 2a at the inside bottom place that is positioned at described housing 1 at described base portion 2b place, and be formed on the face with the bottom surface of described housing 1, thereby the leading section that makes this portion of terminal 2c is upright and be J-shaped to upside along the lateral surface of described housing 1.Form J-shaped by the leading section that makes this portion of terminal 2c, just can carry out mounted on surface the loop substrate of the push switch that uses described housing 1.For this situation, a described 2d of butt contact portion can with line that the configuration direction of described base portion 2b intersects vertically on relative configuration, and this direction can not produce the direction of distortion owing to the processing that described base portion 2b implements several joggling parts 2a, so even several joggling parts 2a is set in the inside of described housing 1, can not be subjected to implementing the harmful effect that processing is produced because of joggling part 2a yet, thereby can accurately the gap between contact point be set at minimum dimension, thereby make described housing 1 further miniaturization.
The pair of inside face place that is oppositely arranged on described housing 1 also is provided with in conjunction with using groove 1a, and this combines in conjunction with jut in conjunction with the hook portion place on groove 1a and the axle sleeve rod unit that is positioned at as described later.This by being provided with in conjunction with mode with groove 1a, can when the mobile and recovery of implementing as described later, this axle sleeve rod unit be led in housing 1 move, and can limit by enforcing location.Place, four bights being positioned at medial surface on the described housing 1, rectangular also is provided with the facial 1b of the slip that is planar shaped, thereby forms the slip of sliding surface as described later.Because the place, four bights on the medial surface of described housing 1 is provided with described sliding surface 1b, even so implement under the situation of extruding in the bight of described axle sleeve rod unit, also can make the axle sleeve rod unit produce stable slip, thereby improve the handling property when operating.And the facial 1b of the slip that is arranged on described housing 1 place is not limited in this planar shaped, also can be shapes such as arc surface.
Movable contact point portion 3 is by the material of rubber-like, bronze sheet or stainless copper coin etc., and its outside is rounded substantially, is formed with cradle portion 3a in the form of a ring in its outside.Be formed with the hole 3b that is circular-arc at the central portion place of this cradle portion 3a, be formed with also at the central portion place of this hole 3b that the one end is connected described cradle portion 3a place by connecting portion 3c and the other end is the whole contact chip 3d that cuts.This contact chip 3d can sentence the mode of shaking at described cradle portion 3a by described connecting portion 3c and be provided with, and also implements warpage according to the oblique angle of the inclination that makes progress substantially at its leading section.Described contact chip 3d can form ellipse, and make this ellipse vertically, according to the configuration direction that is positioned at the described contact point 2d of portion on the described a pair of fixed terminal 2 be that the mode of the same line is implemented configuration.Because described contact chip 3d forms ellipse, so the length of described connecting portion 3c (movable span) can be elongated, thereby can increase the design freedom of the contact spring loading of described contact chip 3d, and can obtain stably to contact and cough up the sense of rattling away.Because it is shorter that the length of described contact chip 3d forms, so can also make 3 miniaturizations of described whole movable contact point portion.
On described contact chip 3d, with as described later rubber-like spring members opposite face place, i.e. the upper side place of inclination warpage owing to cut forms and the connect jut 3e of usefulness of this rubber-like spring members.This jut 3e can be set to one, also can be set to several, and their shape is not limited in a kind of form, such as can also form the projection that is different shape such as circular-arc or circular.By being provided with the mode of this jut 3e, can prevent as described later the rubber-like spring members and described contact chip 3d between produce connect airtight, thereby can prevent from operating process, to produce the metal impact noise, and can improve operability owing to connecting airtight to each other, throwing off.And because the cardinal principle central portion of contact chip 3d is implemented extruding, so can realize stable contact.
Rubber-like spring members 4 can by have flexibility, by the material of synthetic rubber or silicone rubber etc., its external shape can be the shape of arching upward of lower aperture, and by at as described later the skirt full front of a Chinese gown 4a of portion that moves, produces warpage and have elastic force when restoring, and the operating member 4b that is formed on the place, top of this skirt full front of a Chinese gown 4a of portion constitutes.The side place also is formed with action and uses jut 4c below this operating member 4b, and this action can connect with the jut 3e that is arranged on the contact chip 3d place in the described movable contact point portion 3 with the leading section of jut 4c.And in the present embodiment, movable contact point portion 3 is made of rubber-like metallic plate etc., and form according to the mode that is configured between described fixed terminal 2 and the rubber-like spring members 4, so also can with known, by the contact point of carbon class made etc., be integrally formed in action on the described rubber-like spring members 4 with the place, lower surface of jut 4c.For this occasion, described movable contact point portion 3 also can no longer be set, so can reduce the number of parts.
Axle sleeve rod unit 5 can be made by the moulding material of synthetic resin etc., and rectangular substantially, and facial thereon place is provided with can be for enforcement pressing operation press section 5a that use, that be planar shaped such as fingers.Side place below relative with this press section 5a, also be formed with to following side-prominent pushing jut 5b, this is pushed with jut 5b and can be used for connecting with the upper side of the operating member 4b of described rubber-like spring members 4, and makes described rubber-like spring members 4 to described movable contact point portion 3 side warpages.And on described axle sleeve rod unit 5 relative a pair of side surface part place, be formed with a pair of hook portion 5d that has in conjunction with jut 5c, this can combine with groove 1a with the combination at the medial surface place that is arranged on described housing 1 in conjunction with jut 5c, thereby implement in the process of mobile and recovery at described axle sleeve rod unit 5, described axle sleeve rod unit 5 restrictions can be positioned at the interior location place of described housing 1.Place, inboard at this hook portion 5d, promptly with described rubber-like spring members 4 on the skirt full front of a Chinese gown 4a of portion opposite face place, also be formed with the 5e of escape portion, when the described skirt full front of a Chinese gown 4a of portion implements extruding, should can implement the joggling part 4d that warpage to support by the 5e of escape portion, and form the circular arc of invaginated type along the outside of the described skirt full front of a Chinese gown 4a of portion.By being provided with the mode of this escape 5e of portion, can make described axle sleeve rod unit 5 miniaturizations.
And by the mode of the 5e of this escape portion is set, can make described hook portion 5d the thickness that the central portion place on the direction becomes is set along the extension of described hook portion 5d, promptly because thinner at the thickness of described escape portion 5e place formation, so reduce the intensity of described hook portion 5d, and the thickness that the relative place, both sides of the described escape 5e of portion forms is thicker.Because the thickness that these both sides form is thicker, so even the thickness of the 5e of escape portion on the described hook portion 5d is thinner, also can make described hook portion 5d have needed whole warpage intensity, and owing to no longer need to make the size of described whole hook portion 5d to become big (thicker), so can also make described axle sleeve rod unit 5 miniaturizations.And in the present embodiment, though the described escape 5e of portion is circular-arc along the outside formed thereby shape that is positioned at the skirt full front of a Chinese gown portion 4a place on the described rubber-like spring members 4, but the described escape 5e of portion is not limited in this shape, the shape that can also be other, can implement support to the joggling part 4d on the described skirt full front of a Chinese gown 4a of portion is tetragonal recess such as can also form.
And on described axle sleeve rod unit 5 place, rectangular four bights, also form the 5f of foot that the inside bottom surface by described housing 1 extends out.Have the facial 5g of slip chamfering, that be the plane in place, the bight formation that is positioned at the 5f of this foot outside, and the facial 5g of the slip on the 5f of this foot is being provided with by sliding type on the facial 1b of the slip that is positioned at the medial surface place on the described housing 1.Be provided with the mode of the described 5f of foot by place, four bights rectangular on described axle sleeve rod unit 5, can between the lateral surface of the medial surface of described housing 1 and described axle sleeve rod unit 5, produce smooth sliding, thereby can implement the slip of axle sleeve rod unit 5 within housing 1 exactly.
And, the mode of the facial 5g of described slip is set by the place, bight, the outside of the 5f of foot on described axle sleeve rod unit 5, even the bight on the described axle sleeve rod unit 5 is being produced under the situation of extruding, also can by and be arranged on slip between the facial 1b of slip at medial surface place on the described housing 1, and make described axle sleeve rod unit 5 realize more stable slip, thereby can improve operator perception to described axle sleeve rod unit 5.And the facial 5g of slip that is arranged on described axle sleeve rod unit 5 places is not limited in this planar shaped, also can be shapes such as arc surface.
As mentioned above, push switch constructed according to the invention can make movable contact point portion by the cradle portion that is formed on the outside, and constitute with the contact chip that can the mode of shaking be arranged on the cradle portion place by connecting portion, and along connecting portion length on the direction is set according to contact chip, than forming along the short mode of length on the direction that direction intersects vertically being set with connecting portion, so the length (movable span) that connecting portion is formed is long, thereby can increase the design freedom of the contact spring loading of contact chip, and can obtain stably to contact and cough up the sense of rattling away.And the length that contact chip is formed is shorter, so can also make the miniaturization of whole movable contact point portion.
And, movable contact point portion is formed by rubber-like metallic plate etc., central portion place in cradle portion is provided with the hole that is circular-arc, and on metallic plate, form the contact chip that integral cutting is opened by connecting portion at the central portion place in this hole, so the profile of contact chip is little and simple, and then can obtain to implement the movable contact point portion of stable contact.
And, owing to make the contact chip in the movable contact point portion form ellipse, so can adopt molded mode easily implements to make, and can make the machinability of parts good, thereby can be exactly contact, to improve the contact reliability of contact point portion with contact point portion on a pair of fixed terminal.
And, the jut that can also connect with rubber-like spring members opposite face place, contact chip place in movable contact point portion, connect airtight so can prevent between rubber-like spring members and described contact chip, to produce, thereby can prevent from operating process, to produce the metal impact noise, to improve operability owing to connecting airtight to each other, throwing off.And owing to push in the substantial middle portion enforcement of contact chip, so can realize stable contact.
Claims (4)
1. push switch, it is characterized in that having the housing that is box-shaped, be fixedly mounted on a pair of fixed terminal at this enclosure interior place, slidably remain on the axle sleeve rod unit at the medial surface place of described housing, be configured in movable contact point portion on the described fixed terminal according to mobile phase linkage manner with this axle sleeve rod unit, and be configured between this movable contact point portion and the described axle sleeve rod unit, with the described movable contact point portion of the mobile phase of described axle sleeve rod unit interlock and described fixed terminal between produce and contact, the rubber-like spring members that separates and described axle sleeve rod unit is restored, and described movable contact point portion is by the cradle portion that is formed on the outside, extend the connecting portion that is arranged on this cradle portion place, and constitute with the contact chip that can the mode of shaking be arranged on described cradle portion place by described connecting portion, the described contact chip that is arranged on movable contact point portion place is according to the length that is provided with along described connecting portion on the direction, than forming along with described connecting portion the short mode of length on the direction that direction intersects vertically being set.
2. push switch as claimed in claim 1, it is characterized in that described movable contact point portion is formed by rubber-like metallic plate etc., central portion place in described cradle portion is provided with the hole that is circular-arc, and forms the described contact chip that integral cutting is opened at the central portion place in this hole by described connecting portion on metallic plate.
3. push switch as claimed in claim 2 is characterized in that the described contact chip in the described movable contact point portion forms ellipse.
4. push switch as claimed in claim 1 is characterized in that the connect jut of usefulness with described rubber-like spring members opposite face place, is formed on the described contact chip place in the described movable contact point portion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06559799A JP3526775B2 (en) | 1999-03-11 | 1999-03-11 | Push switch |
| JP065597/1999 | 1999-03-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1267071A true CN1267071A (en) | 2000-09-20 |
| CN1129157C CN1129157C (en) | 2003-11-26 |
Family
ID=13291600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00102817A Expired - Lifetime CN1129157C (en) | 1999-03-11 | 2000-03-10 | Push switch |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1037226B1 (en) |
| JP (1) | JP3526775B2 (en) |
| KR (1) | KR100363467B1 (en) |
| CN (1) | CN1129157C (en) |
| DE (1) | DE60020285T2 (en) |
| TW (1) | TW454215B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101097811B (en) * | 2006-06-26 | 2013-05-08 | 华晶科技股份有限公司 | Metal round cover switch |
| CN106104670A (en) * | 2014-03-18 | 2016-11-09 | O.M.B.吉他有限公司 | Floor effect unit |
| CN109671581A (en) * | 2018-01-03 | 2019-04-23 | 烟台玛格玛电子有限公司 | Keyboard metal shrapnel switch |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITTO20010878A1 (en) * | 2001-09-14 | 2003-03-14 | Bitron Spa | ELECTRIC DOUBLE TRIP SWITCH. |
| FR2872335B1 (en) * | 2004-06-29 | 2006-08-18 | Dav Sa | ELECTRICAL MICROCONTACTOR FOR CIRCUIT BOARD AND ELECTRIC SWITCH EQUIPPED WITH SUCH A MICROCONTACTOR |
| JP2010510617A (en) * | 2006-10-03 | 2010-04-02 | アバテーク インターナショナル アーゲー | Key for using SMT |
| KR101291194B1 (en) * | 2007-01-04 | 2013-07-31 | 삼성전자주식회사 | Assembly for key button, and photographing apparatus comprising the same |
| JP5199937B2 (en) * | 2009-04-07 | 2013-05-15 | アルプス電気株式会社 | Push button switch |
| DE102014019248B4 (en) | 2014-12-19 | 2017-05-11 | Audi Ag | Operating device for a vehicle, in particular a passenger car |
| TWI682412B (en) | 2018-11-05 | 2020-01-11 | 緯創資通股份有限公司 | Button module |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3794068B2 (en) * | 1996-09-17 | 2006-07-05 | 松下電器産業株式会社 | Push-on switch |
-
1999
- 1999-03-11 JP JP06559799A patent/JP3526775B2/en not_active Expired - Lifetime
-
2000
- 2000-01-26 TW TW089101329A patent/TW454215B/en not_active IP Right Cessation
- 2000-02-24 KR KR1020000009128A patent/KR100363467B1/en active IP Right Grant
- 2000-03-10 CN CN00102817A patent/CN1129157C/en not_active Expired - Lifetime
- 2000-03-10 EP EP00105077A patent/EP1037226B1/en not_active Expired - Lifetime
- 2000-03-10 DE DE60020285T patent/DE60020285T2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101097811B (en) * | 2006-06-26 | 2013-05-08 | 华晶科技股份有限公司 | Metal round cover switch |
| CN106104670A (en) * | 2014-03-18 | 2016-11-09 | O.M.B.吉他有限公司 | Floor effect unit |
| CN106104670B (en) * | 2014-03-18 | 2019-11-12 | O.M.B.吉他有限公司 | Floor effect unit |
| CN109671581A (en) * | 2018-01-03 | 2019-04-23 | 烟台玛格玛电子有限公司 | Keyboard metal shrapnel switch |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1037226A3 (en) | 2001-08-29 |
| DE60020285T2 (en) | 2005-11-24 |
| TW454215B (en) | 2001-09-11 |
| JP3526775B2 (en) | 2004-05-17 |
| DE60020285D1 (en) | 2005-06-30 |
| KR100363467B1 (en) | 2002-11-30 |
| EP1037226A2 (en) | 2000-09-20 |
| CN1129157C (en) | 2003-11-26 |
| EP1037226B1 (en) | 2005-05-25 |
| KR20000062624A (en) | 2000-10-25 |
| JP2000260256A (en) | 2000-09-22 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
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Ref country code: HK Ref legal event code: GR Ref document number: 1056498 Country of ref document: HK |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Tokyo, Japan Patentee after: Alpine Alpine Company Address before: Tokyo, Japan Patentee before: Alps Electric Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20031126 |