CN1684211A - Press button switch - Google Patents
Press button switch Download PDFInfo
- Publication number
- CN1684211A CN1684211A CNA2005100638615A CN200510063861A CN1684211A CN 1684211 A CN1684211 A CN 1684211A CN A2005100638615 A CNA2005100638615 A CN A2005100638615A CN 200510063861 A CN200510063861 A CN 200510063861A CN 1684211 A CN1684211 A CN 1684211A
- Authority
- CN
- China
- Prior art keywords
- mentioned
- contact
- resin
- travelling contact
- push
- 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.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
- H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
- H04M1/0235—Slidable or telescopic telephones, i.e. with a relative translation movement of the body parts; Telephones using a combination of translation and other relative motions of the body parts
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
- H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
- H04M1/0225—Rotatable telephones, i.e. the body parts pivoting to an open position around an axis perpendicular to the plane they define in closed position
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Push-Button Switches (AREA)
Abstract
The invention provides a push-button switch wherein an operation stroke at the time of pushing operation can be enlarged, and contact reliability of a contact part is high. This push-button switch comprises a housing 1 made of a synthetic resin, a central stationary contact 2 and peripheral contacts 3 which are disposed on the housing 1, and a metal plate having a reversible swelled part, and has a movable contact 7 laid on the central stationary contact 2 and the peripheral stationary contacts 3, and a pushing part 9c abutting on the upper side of the swelled part of the movable contact 7. This switch is also provided with an operation member 9 movably disposed in the housing 1, and the operation member 9 is formed of an elastically deformable elastic material. On the abutting surface of the pushing part 9c and the movable contact 7, a resin layer 8 to prevent them from sticking each other by reducing its friction coefficient is provided.
Description
Technical field
The present invention relates to a kind of push-button switch that is used as the operation of electronic equipment with switch, can increase the push-button switch structure of stroke when particularly relating to pressing operation.
Background technology
As existing push-button switch, known a kind of structure is: the stroke when increasing pressing operation, the teat of central authorities is formed by elastomer below the button that the travelling contact that can overturn makes it to move with pushing, during console switch before the rotary movement of travelling contact, make and push earlier with elastomer distortion (dwindling) ormal weight.(for example, with reference to patent documentation 1)
Below, the structure to existing push-button switch describes with reference to the accompanying drawings.
Fig. 8 is the cutaway view of existing push-button switch, and Fig. 9 is explanation button and the cutaway view of pushing elastomeric associated methods.
As shown in the figure, the advantage of present embodiment is to push pushing with teat below the button 51 that membrane-like rotary movement type travelling contact 36 makes it to overturn to be formed by elastomer.That is, button 51 will be pushed with elastomer 52 and keep central authorities in its lower section.
And, this is pushed with elastomer 52 and is made of the rubber elastomeric material, as shown in the figure, form top and be two sections structures cylindric of big footpath flange portion 52B, this front end is formed the flange portion 52B of taper 52C shown in arrow among the figure, be pressed among roomy branch sector hole (hole with the level) 51A in the inside of central authorities below the rigid body material system button 51, thereby both are combined.
In addition, push by this and to produce distortion with pushing of elastomer 52 and promptly dwindle, and the little power of pressure when being set at the rotary movement of using than the membrane-like rotary movement type travelling contact 36 of push-button switch begins distortion and dwindles.
Therefore, if the top teat 53 of button 51 is exerted pressure, thereby button 51 beginnings action downwards, then pushing with elastomer 52 (52A) of central authorities begins to dwindle below it, along with the power that is applied on the top teat 53 increases, membrane-like rotary movement type travelling contact 36 slowly is out of shape, the power when if pressure surpasses rotary movement type travelling contact 36 rotary movements, then rotary movement type travelling contact 36 is accompanied by restraining (joint degree) sense and carries out rotary movement, and making between outside fixed contact 33A, 33B and the central fixed contact 35 is conducting between splicing ear 32 and 34.
Then, remove and be applied to the pressure on the teat 53 above the button 51, then button 51 relies on rotary movement type travelling contact 36 and the elastic force of pushing with elastomer 52 to be pushed back, and resets to original state.
Patent documentation 1: the spy opens flat 9-161599 communique
But, in the travelling contact structure of above-mentioned existing push-button switch, dwindle distortion if push with elastomer 52, then the contact area with metal dome shape travelling contact 36 becomes big, therefore, mutual frictional force increases, during action button 51, push with elastomer 52 and travelling contact 36 easy body actions, therefore, the problem of existence is that travelling contact 36 rotates on outside fixed contact 33A, 33B, grind away the silver-plated of contact-making surface, and can't obtain high contact reliability.
Summary of the invention
Therefore, the present invention makes in order to address the above problem a little, when its purpose is to provide a kind of actuating length can increase pressing operation the time, the also high push-button switch of contact reliability of contact portion.
In order to solve above-mentioned problem, among the present invention as the 1st solution, the formation that adopts is: possess synthetic resin system housing, be configured in central fixed contact and peripheral fixed contact on this housing, constitute and be placed on travelling contact on above-mentioned central fixed contact and the peripheral fixed contact by metallic plate with the portion of heaving that can overturn, with have with the press section of heaving butt above the portion of this travelling contact and can be configured in control member on the above-mentioned housing knee-action, the aforesaid operations member is formed by elastomeric material that can strain, is provided with simultaneously to reduce coefficient of friction and prevent the resin bed that adheres to mutually on the bearing surface of above-mentioned press section and above-mentioned travelling contact.
In addition, as the 2nd solution, the formation of employing is: above-mentioned resin bed is formed by polyimide resin or fluorine resin.
In addition, as the 3rd solution, the formation of employing is: make the press section of above-mentioned resin bed and aforesaid operations member or above-mentioned travelling contact to heave above the portion at least one side integrally formed.
In addition, as the 4th solution, the formation of employing is: above-mentioned resin bed is formed by independent tabular resin component element, with this tabular resin component element be clipped in the press section of aforesaid operations member and above-mentioned travelling contact heave above the portion between.
In addition, as the 5th solution, the formation of employing is: above-mentioned tabular resin component element is formed by the resin system thin slice that covers above-mentioned travelling contact and above-mentioned central fixed contact and 1 wide cut above the peripheral fixed contact.
The effect of invention
As described above, push-button switch of the present invention, possesses synthetic resin system housing, be configured in central fixed contact and peripheral fixed contact on the housing, constitute and be placed on the travelling contact on central fixed contact and the peripheral fixed contact and have the press section of heaving butt above the portion with travelling contact by metallic plate with the portion of heaving that can overturn, can be configured in the control member on the housing knee-action, the aforesaid operations member is formed by elastomeric material that can strain, simultaneously on the bearing surface of above-mentioned press section and above-mentioned travelling contact, setting reduces coefficient of friction and prevents the resin bed of adhesion mutually, therefore, because strain took place thereby can increase actuating length in control member itself when control member was pushed, utilize the resin bed on the bearing surface be arranged on press section and travelling contact simultaneously and reduce the frictional force of mutual bearing surface, therefore, can avoid mutual adhesion, control member when operation travelling contact can not suppress the silver-plated of contact-making surface than big-movement and be ground on fixed contact, obtain high contact reliability.
In addition, resin bed is formed by polyimide resin or fluorine resin, thereby therefore the coefficient of friction that can make resin bed, can positively suppress the grinding of the contact-making surface of contact portion less than the contact portion coefficient of friction each other that is made of metallic plate.
In addition, make the press section of resin bed and control member or travelling contact to heave above the portion at least one side integrally formed, thereby control member or travelling contact are integrated in advance as the member with resin bed, therefore, seek the reduction of number of components.
In addition, resin bed is formed by independent tabular resin component element, with this tabular resin component element be clipped in the press section of control member and travelling contact heave above the portion between, thereby, as long as make tabular resin component element form and sandwich between control member and the travelling contact by independent member, therefore not to the restriction of the shape of each member, suitably miniaturization also can reduce the deviation of coefficient of friction.
In addition, tabular resin component element, form by the resin system thin slice that covers above-mentioned travelling contact and above-mentioned central fixed contact and 1 wide cut above the peripheral fixed contact, thereby it is laminar to make the resin bed that is made of tabular resin component element form a slice, therefore, install in the switch easily, operation is good.
Description of drawings
Fig. 1 is the cutaway view of expression push-button switch of the present invention.
Fig. 2 is the major part vertical view of the state of expression perspective push-button switch of the present invention.
Fig. 3 is the cutaway view of the operate condition of expression push-button switch of the present invention.
Fig. 4 is the cutaway view of the 2nd embodiment of expression push-button switch of the present invention.
Fig. 5 is the cutaway view of operate condition of the 2nd embodiment of expression push-button switch of the present invention.
Fig. 6 is the cutaway view of the 3rd embodiment of expression push-button switch of the present invention.
Fig. 7 is the cutaway view of operate condition of the 3rd embodiment of expression push-button switch of the present invention.
Fig. 8 is the cutaway view of the existing push-button switch of expression.
Fig. 9 illustrates existing button and the cutaway view of pushing with elastomeric associated methods.
Among the figure, the 1-housing; The 1a-incorporating section; The 1b-jut; 2-central authorities fixed contact; 3-periphery fixed contact; The 4-splicing ear; The 5-splicing ear; The 6-lid; The 6a-peristome; The 7-travelling contact; 7a-outer peripheral edges portion; The 7b-central top; The 8-resin bed; The 9-control member; 9a-button portion; The 9b-flange part; The 9c-press section; The tabular resin component element of 10-.
Embodiment
Below, Fig. 1～Fig. 7 shows the execution mode of push-button switch of the present invention.Fig. 1 is the cutaway view of push-button switch of the present invention, Fig. 2 is the major part vertical view of the state of expression perspective push-button switch of the present invention, Fig. 3 is the cutaway view of the operate condition of expression push-button switch of the present invention, Fig. 4 is the cutaway view of the 2nd embodiment of expression push-button switch of the present invention, Fig. 5 is the cutaway view of expression same action state, Fig. 6 is the cutaway view of the 3rd embodiment of expression push-button switch of the present invention, and Fig. 7 is the cutaway view of expression same action state.
Among Fig. 1, Fig. 2, housing 1 is formed the top ringent box with incorporating section 1a by insulating material such as synthetic resin.In addition, inner bottom surface central authorities at incorporating section 1a, utilization is inlayed method one such as shaping and is embedded with the central fixed contact 2 that is made of the conductive metal plate, its local exposing surface, clipping a pair of peripheral fixed contact 3,3 that these central authorities' fixed contact 2 opposed position configuration are made of the same conductivity metallic plate, and making its local exposing surface.
In addition, be provided with the outstanding splicing ear 4,5 to foreign side at the opposed side of above-mentioned housing 1 downside, this splicing ear 4,5 is electrically connected with above-mentioned central fixed contact 2 and peripheral fixed contact 3,3 at above-mentioned housing 1 inner bottom part.In addition, be provided with outstanding upward jut 1b, engaging the lid 6 that punching presses such as metallic plate is formed square shape on this jut 1b, thereby its front end riveted the upper face side that covers 6 setting-in housings 1 in four bights of the upper face side of above-mentioned housing 1.
In addition, constitute by the thin-sheet metal plate of conductivity and have a dome-type travelling contact 7 of heaving portion that can overturn in the incorporating section of above-mentioned housing 1 1a configuration.This travelling contact 7 forms toroidals, and the 7a of its outer peripheral edges portion is placed on the above-mentioned peripheral fixed contact 3,3 with contact condition, the central top 7b that heaves portion with said fixing contact 2 opposed and isolated state configuration.
In addition, at the integrally formed resin bed 8 of upper face side of the central top 7b of the portion of heaving of above-mentioned travelling contact 7.This resin bed 8 for example adopts methods such as resin-coated, thus with fusion resin-coated behind the upper face side of travelling contact 7, make it solidify integrally formed resin bed.Also have, in the present embodiment, above-mentioned resin bed 8 uses little for example polyimide resin or the fluorine resin etc. of coefficient of friction.
Also have, at this moment, the periphery size of above-mentioned resin bed 8 is compared with the periphery size of the press section 9c of aforesaid operations member 9, forms big slightly eyelet.And, the above-mentioned press section 9c of the upper face side butt of the portion of heaving of above-mentioned travelling contact 7 and when pushing travelling contact 7, being situated between by above-mentioned resin bed 8, the portion of heaving of above-mentioned travelling contact 7 is pushed by above-mentioned press section 9c.
So, in the present embodiment, above-mentioned resin bed 8 is formed by coefficient of friction little for example polyimide resin or fluorine resin etc., the coefficient of friction of this resin bed 8 is less than the contact portion that is made of the metallic plate coefficient of friction between (travelling contact 7 and central fixed contact 2 and peripheral fixed contact 3) each other, thereby travelling contact 7 adheres to and a body action with press section 9c can prevent control member 9 operation the time, therefore, can suppress the grinding of the contact-making surface of contact portion.
Fig. 3 represents the operate condition of push-button switch of the present invention.
Under initial condition shown in Figure 1, the central top 7b of the portion of heaving of above-mentioned travelling contact 7 is spaced apart from above-mentioned central fixed contact 2, and contact portion becomes the OFF state.From this state, if push the 9a of button portion of aforesaid operations portion 9 downwards, then above-mentioned press section 9c moves downwards, is situated between and pushes the central top 7b of the portion of heaving of travelling contact 7 downwards by above-mentioned resin bed 8.And, push by this, travelling contact 7 upsets, the following and central fixed contact 2 of heaving the central top 7b of portion contacts, and is electrically connected with peripheral fixed contact 3 by travelling contact 7 central fixed contacts 2 thereby be situated between, and contact portion becomes the ON state.
At this moment, in the present embodiment, above-mentioned travelling contact 7, as shown in Figure 1, and overlapping 2 metallic plates and forming, its setting is to make the tipping load when heaving portion's upset heavy a little.In addition, aforesaid operations portion 9 is formed by the rubber elastomeric material, its setting be strain deformation load than the tipping load of above-mentioned travelling contact 7 a little lightly.Thereby, the press section 9c of aforesaid operations member 9 push above-mentioned travelling contact 7 heave portion the time, up to the portion of heaving of travelling contact 7 take place upset during, dwindle the actuating length that this dwindles the corresponding increase of (distortion) part energy when pushing by the press section 9c distortion earlier that elastomeric material constitutes.
Next, from this state, if remove pressing force to the 9a of button portion of control member 9, then rely on the distortion of the elastic force press section 9c of self to reset as original, simultaneously, travelling contact 7 relies on anti-upset of elastic force of self, and central top 7b is spaced apart from central fixed contact 2, contact portion becomes the OFF state, and control member 9 also resets to initial condition.
Fig. 4, Fig. 5 represent the 2nd embodiment of push-button switch of the present invention.At this moment, be that with above-mentioned the 1st embodiment difference the formation method part of above-mentioned resin bed 8 is different.
That is, in the present embodiment, above-mentioned resin bed 8 is not the upper face side of central top 7b that is integrally formed in the portion of heaving of travelling contact 7, but is integrally formed in side below the prominent shape press section 9c with the control member of heaving butt above the portion 9 of travelling contact 7.
This resin bed 8 for example utilizes the integrally formed resin beds of method side below the press section such as double-colored shaping when control member 9 is shaped.In addition, resin bed 8 also uses coefficient of friction little for example polyimide resin or fluorine resin etc. in the present embodiment.
Also have, the operate condition of the push-button switch of present embodiment as shown in Figure 5, and is identical with the 1st above-mentioned embodiment and about movement content, therefore omits its explanation.
According to above-mentioned embodiments of the invention, aforesaid operations member 9 is by can the elastic deformation material forming, simultaneously, on the bearing surface of above-mentioned press section 9c and above-mentioned travelling contact 7, the coefficient of friction I is set prevents the above-mentioned resin bed 8 of adhesion mutually, thereby, strain self took place and can increase actuating length in control member 9 when aforesaid operations member 9 was pushed, simultaneously, utilization is located at the frictional force of the mutual bearing surface of above-mentioned resin bed 8 reductions of above-mentioned press section 9c and above-mentioned travelling contact 7 bearing surfaces, therefore, can avoid mutual adhesion, above-mentioned travelling contact 7 can be than big-movement on central fixed contact 2 and peripheral fixed contact 3 during aforesaid operations member 9 operation, and can suppress that contact-making surface is silver-plated to be ground, and can obtain high contact reliability.
In addition, the press section 9c of above-mentioned resin bed 8 and aforesaid operations member 9 or above-mentioned travelling contact 7 to heave above the portion at least one side integrally formed, thereby can make aforesaid operations member 9 or above-mentioned travelling contact 7 be pre-formed one as having above-mentioned resin bed 8, therefore, can seek the reduction of component count.
Fig. 6, Fig. 7 represent the 3rd embodiment of push-button switch of the present invention.At this moment, the above-mentioned the 1st and the 2nd embodiment difference is that the structure of above-mentioned resin bed 8 is local different.
That is, in the present embodiment, resin bed and travelling contact 7 and control member 9 etc. are not integrally formed, but form with independent tabular resin component element 10, with this tabular resin component element 10 be clipped in the press section 9c of control member 9 and travelling contact 7 heave above the portion between.In addition, this tabular resin component element 10 forms by covering the resin system thin slice of travelling contact 7 with central fixed contact 2 and a slice wide cut above the peripheral fixed contact 3,3, and its periphery location is remained in the incorporating section 1a of above-mentioned housing 1.
About above-mentioned tabular resin component element 10, also use the resin system thin slice that constitutes by coefficient of friction little for example polyimide resin or fluorine resin etc.Also have, the operate condition of the push-button switch of present embodiment as shown in Figure 7, and is identical with the 1st above-mentioned embodiment and about movement content, therefore omits its explanation.
Also have, in the present embodiment, be that resin system thin slice by a slice wide cut forms above-mentioned tabular resin component element 10, but, be not limited thereto, size also can be in a narrow margin, at this moment, its size have at least can cover (covering) travelling contact 7 heave above the portion the whole size of bearing surface below the press section 9c with control member 9 for well.At this moment, thus also can make tabular resin component element 10 anti-skidding with the side stickup in travelling contact 7 or the control member 9.
In addition, tabular resin component element 10, thus also can be that the one application of resin forms resin system thin slice in lamellar metallic plate table.
According to present embodiment, resin bed is formed with independent tabular resin component element 10, with this tabular resin component element 10 be clipped in the press section 9c of control member 9 and travelling contact 7 heave above the portion between, tabular resin component element 10 is formed with separate part, as long as sandwich between control member 9 and the travelling contact 7, therefore, there is not restriction to the shape of each parts, suitably miniaturization also can reduce the deviation of coefficient of friction.
In addition, make above-mentioned tabular resin component element 10, form by covering the resin system thin slice of above-mentioned travelling contact 7 with above-mentioned central fixed contact 2 and a slice wide cut above the peripheral fixed contact 3,3, it is laminar to make the resin bed that is made of this tabular resin component element 10 form a slice, therefore, in housing switch is installed easily, operation is good.
Claims (5)
1. push-button switch is characterized in that:
Possess: synthetic resin system housing, be configured in central fixed contact on this housing and peripheral fixed contact, constitute and be placed on the travelling contact on above-mentioned central fixed contact and the peripheral fixed contact and have with the press section of heaving butt above the portion of this travelling contact and can be configured in control member on the above-mentioned housing knee-action by metallic plate with the portion of heaving that can overturn;
The aforesaid operations member is formed by elastomeric material that can strain, and the bearing surface of above-mentioned press section and above-mentioned travelling contact is provided with and reduces coefficient of friction and prevent the resin bed that adheres to mutually simultaneously.
2. push-button switch according to claim 1 is characterized in that: above-mentioned resin bed is formed by polyimide resin or fluorine resin.
3. according to claim item 1 or 2 described push-button switches, it is characterized in that: the press section of above-mentioned resin bed and aforesaid operations member or above-mentioned travelling contact heave above the portion at least one square being integral.
4. according to claim item 1 or 2 described push-button switches, it is characterized in that: above-mentioned resin bed is formed by independent tabular resin component element, with this tabular resin component element be clamped in the press section of aforesaid operations member and above-mentioned travelling contact heave above the portion between.
5. according to claim item 4 described push-button switches, it is characterized in that: above-mentioned tabular resin component element is formed by the resin system thin slice that covers above-mentioned travelling contact and above-mentioned central fixed contact and 1 wide cut above the peripheral fixed contact.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004120349A JP2005302643A (en) | 2004-04-15 | 2004-04-15 | Push-button switch |
| JP2004120349 | 2004-04-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1684211A true CN1684211A (en) | 2005-10-19 |
Family
ID=35263462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005100638615A Pending CN1684211A (en) | 2004-04-15 | 2005-04-08 | Press button switch |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2005302643A (en) |
| KR (1) | KR20060045687A (en) |
| CN (1) | CN1684211A (en) |
| TW (1) | TW200614301A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101561124B (en) * | 2008-04-18 | 2011-08-31 | 东芝照明技术株式会社 | Illumination utensil |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5440111B2 (en) * | 2009-11-16 | 2014-03-12 | 横河電機株式会社 | Switch unit |
-
2004
- 2004-04-15 JP JP2004120349A patent/JP2005302643A/en not_active Withdrawn
-
2005
- 2005-04-08 CN CNA2005100638615A patent/CN1684211A/en active Pending
- 2005-04-14 KR KR1020050030880A patent/KR20060045687A/en not_active Application Discontinuation
- 2005-04-15 TW TW094112169A patent/TW200614301A/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101561124B (en) * | 2008-04-18 | 2011-08-31 | 东芝照明技术株式会社 | Illumination utensil |
Also Published As
| Publication number | Publication date |
|---|---|
| TW200614301A (en) | 2006-05-01 |
| KR20060045687A (en) | 2006-05-17 |
| JP2005302643A (en) | 2005-10-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1763881A (en) | Push-on switch | |
| CN1274191C (en) | Electronic device and waterproofing structure thereof | |
| CN1208796C (en) | Push-button switch and the input device for using same | |
| CN1252761C (en) | Push-botton switch | |
| CN1787142A (en) | Push-on switch | |
| CN1855337A (en) | Slide switch | |
| CN1906719A (en) | Dome contact and multistage operating electric switch containing the same | |
| CN101051572A (en) | Push switch | |
| CN1195309C (en) | Input device | |
| CN1849682A (en) | Electrical switch device with lateral activation | |
| CN1684211A (en) | Press button switch | |
| CN1181661C (en) | Press-key for mobile telephone set and similar machine and method for forming same | |
| CN206650016U (en) | Key switch | |
| CN1728311A (en) | Key switching structure | |
| CN1129157C (en) | Push switch | |
| CN1203499C (en) | Contact board and switch devie for using the same contact board | |
| CN1227686C (en) | Multidirectional inputting device | |
| CN1221997C (en) | Button switch | |
| CN1237561C (en) | Sealing press switch | |
| CN1713321A (en) | Switch device | |
| CN1242438C (en) | Button switch and mounting structure thereof | |
| CN1248259C (en) | Press-button switch | |
| CN1179385C (en) | Press-button switch | |
| CN1237559C (en) | Switch | |
| CN1085882C (en) | Switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |