CN1574142A - Key switching device - Google Patents
Key switching device Download PDFInfo
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- CN1574142A CN1574142A CN200410000488.4A CN200410000488A CN1574142A CN 1574142 A CN1574142 A CN 1574142A CN 200410000488 A CN200410000488 A CN 200410000488A CN 1574142 A CN1574142 A CN 1574142A
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Abstract
The invention provides a switching device for a piano keyboard. The invention is characterized in that a connecting rod component (16) is formed via a fulcrum terminal (32) which is connected with a connecting part (34) and matched with a connecting rod fitting part (19), and a loading beam (33) matched with a connecting rod matching groove (30) of a connecting rod connecting part (27), being assembled to be a top part (15) of each keyboard with a firm fulcrum part (26) positioned on the bottom side of a pressing part (25) and the firm connecting part (27), being in the relation to a base part (11) which is provided with a support part (18) of the keyboard top part and the connecting rod fitting part (19). An intersection point (P) of a first rotation track circle (c1) of the connecting rod connecting part which is centered at a fulcrum part (26) and a second rotation track circle (c2) centered at the connecting rod fitting part (19) is defined as an upper limit position of the pressing part (25) for the keyboard top part (15) via the connecting rod component (16). The switching device for piano keyboard has the advantages of realizing the miniature and improving durability, manipulation, and reliability through a simple working procedure to assemble.
Description
Technical field
The present invention relates to piano key switch device, this device drives to stipulate tactic a plurality of switch, so that carry out switch by depressing the key top component that is oppositely arranged respectively.
Background technology
For example, in the personal computer system, generally speaking, by being built-in with the main body of CPU (central processing unit) or power supply, storage device etc., show display monitors such as the CRT (cathode ray tube) of provisioning information or liquid crystal display screen with picture, the key board unit that is used for digital or various function informations of input characters etc. has constituted system configuration.Key board unit exposes head respectively on the first type surface than the thin rectangular shape housing, with the sequence arrangement of stipulating a plurality of key top component such as literal, numeral or function key are set.
In key board unit, the input operation of being undertaken by skilled operators etc. generally be will regulation finger tip be placed on the key top component of regulation, with these key top component as the home position, mobile finger tip, under the situation of the key top component of stipulating without eyes identification, carry out touch system (the Block ラ イ De Star チ) input of so-called pressing operation.In key board unit, be to carry out described operation, so that, can begin to carry out key operation with next one finger having finished when carrying out key operation with a finger with a series of quick acting.
In key board unit, at length realized the standardization of various functional specifications, criterion and the characteristic thereof of VDT (display terminal) machine.For the keyboard criterion, for example the JISX6041 regulation with domestic benchmark presses down 0.25N～1.5N (switch connection position), key stroke amount 0.8mm～4.8mm (switch connection position), and key top dimension 11mm～15mm, key spacing 19 ± 1mm etc. requires characteristic.In addition, in key board unit, with regard to operating surface, can regulate low early and high after angle of inclination with 5 °～15 °, the height of key is a purpose can reduce the burden of upper limbs in operation and hand is had a rest on machine etc., regulation requires characteristic less than 30mm etc., and has realized the correspondence of curved-surface structure etc. of each row of connecting key top component.
On the other hand, in key board unit, when the state that knocks operation from the what is called of suppressing the key top component with finger tip to making finger tip slide and carry out pushing of key top component to own this side, when sliding the operational state change knock, adopted the supporting structure that is suitable for the keyboard switch type key top component that described slip knocks with this what is called that alleviates the load of pressing operation.
In addition, it should be noted: use key board unit because of long-time continuous, can cause the user and acid or problems such as tenosynovitis or initiation visual fatigue occur takeing on.Recently, follow the utilization of Internet connection or Email etc., therefore a large amount of people can, require to adopt the structure that can carry out correct input operation with slight pressure with longer service time of the long-term key board unit that uses.
In key board unit, a plurality of enter keies constitute by arrange a plurality of switch main bodies and the key top component that are provided with on switch substrate with the regulation order, wherein, the display surface of described key top component during embedding the cylindrical shape driver part of giving prominence to setting from described switch main body respectively is provided with the sign of regulation.This key board unit is difficult to adopt the piano type structure, simultaneously since will be on switchboard with high accuracy set price higher a plurality of switch main bodies the position and assemble these switch main bodies, therefore, can raise the cost.
In key board unit, also be provided with a plurality of keys with multinomial function, these keys are assigned and for example read unread mail by Internet connection or visit functions such as specific homepage.For example, in patent documentation 1, the key board unit of disclosure has multifunction key, and these keys can reduce the switch cost by using switch rubber, and can realize the keyization of keyboard top component.The key switch 100 that discloses in this patent has adopted the structure shown in the schematic diagram 5 and 6.
That is, in piano key switch device 100, be assembled with cover 102 on base member 101, portion accommodates a plurality of key top component 103 within it, switch substrate 104 and switch rubber 105.Each key top component 103 forms one by elastic hinge 107 and the keeper 106 that extends along column direction respectively.
In piano key switch device 100, each key top component 103 makes each press section 108 from being arranged on guide hole 109 on the cover 102 and exposing and being arranged on the base member 107 (should be 101 1 school persons).In piano key switch device 100, with respect to each key top component 103, the outstanding a plurality of switches dome protruding 110 that are formed with of one on switch rubber 105.In piano key switch device 100, each key top component 103 promotes by switch dome protruding 110 respectively, by leaving the edge of opening place that the 108 one prominent retainer of establishing 111 in press section is stuck in guide hole 109, determine the positions of press section 108 thus with relative with elastic hinge portion 107.
In piano key switch device 100, by the press section 108 of pushing joystick key top component 103, compressing is in dome protruding 110 distortion of the relative switch in 108 bottom surfaces, described press section, thereby the switch plate of the portion of setting within it is contacted, with switch module on being arranged on switch substrate 104 so that carry out switch.Piano key switch device 100 has adopted by holding member 106 and has realized the integrated of each key top component 103 and they are assembled in structure on the base member 101, with this shaping man-hour that has reduced key top component 103, reduced cost and the manufacturing cost or the assembly cost of mould.In addition, piano key switch device 100 can also be realized switch motion when reducing assembly failure.
[patent documentation 1] spy opens the 2001-312941 communique
But, in above-mentioned piano key switch device 100, owing to adopted such structure, promptly on each key top component 103, make holding member 106 and elastic hinge portion 107 and retainer 111 outstanding from the peripheral part one of key top component, therefore, for the flat shape of press section 108, must adopt bigger space as a whole.So, in piano key switch device 100, under the situation that multiple row key top component 103 is set, as shown in Figure 5, because therefore the bigger space S of essential employing between each row, is difficult to realize miniaturization.
In piano key switch device 100, owing to covered holding member 106 and elastic hinge portion 107 or retainer 111 by cover 102, therefore, on cover 102, corresponding each key top component 103 is formed with guide hole 109.So in piano key switch device 100, the molding condition of cover 102 can be restricted, the problem of splicing particularly can appear being easy to produce in the bight of each guide hole 109.In piano key switch device 100, if make the press section 108 of each switch top component 103 realize that miniaturization to realize whole miniaturization, then can reduce operability.
In addition, in piano key switch device 100, though each key top component 103 is integrally formed by the synthetic resin material,, reach more greatly and handle under the rough situation in frequency of utilization, the deterioration of elastic hinge portion 107 can occur promoting and shorten the problem of life of product because of breakage etc.In piano key switch device 100, can improve elastic characteristic or mechanical strength property though considered the length or the thickness that strengthen elastic hinge portion 107, can address the above problem to a certain extent with this, can cause maximization or operability is worsened.
In piano key switch device 100, have under the situation of bigger press section 108 in each key top component 103, as shown in Figure 6, depress the position a of press section 108, b can form heeling condition.In piano key switch device 100, therefore, press section 108 can be out of shape with uneven state compressing switch dome protruding 110, thereby can worry to carry out correct switch motion.In piano key switch device 100, though also can realize the coordination of maintained switch characteristic by the switch module that forms dome protruding 110 contact piece of switch or switch substrate 104 with large-size,, can cause maximization.In addition, in piano key switch device 100,, can cause durability to worsen by on characteristic hinge 107, acting on elastic force.
Therefore, the objective of the invention is to solve above-mentioned the problems of the prior art, just can assemble, provide cheap piano key switch device with the simple structure that can improve miniaturization, durability, operability or reliability by simple operation.
Summary of the invention
Be used to realize that the piano key switch device of the present invention of above-mentioned purpose is provided with base member, a plurality of key top component, wiring substrate, switch rubber, a plurality of linkage components.In base member, in assembly area, a plurality of keys top, the integrally formed key top-supported portion of each key top component and the connecting rod auxiliary section of each linkage component of supporting of supporting respectively.In each key top component, the connecting rod connecting portion that linkage component is cooperated with described fulcrum that is formed with the press section, is integrally formed in the bottom end of described press section depth direction and the fulcrum that cooperates with the key top-supported portion of base member, on the nearly body one side bottom surface of described press section, forms with predetermined distance.Wiring substrate is assemblied on the base member, is formed with a plurality of switch modules relatively with each key top component.Switch rubber is assembled on the wiring substrate, and has the dome projection of a plurality of switches, the dome projection of these switches is between each switch module of the bottom surface of each key top component and wiring substrate and one is outstanding respectively forms, and can promote relative key top component.The length of each linkage component is shorter than the interval of the connecting rod connecting portion of the fulcrum of key top component and base member, and is to assemble to form between the connecting rod auxiliary section of the connecting rod connecting portion of key top component and base member.
Employing has the piano key switch device of the present invention of above structure, by each fulcrum is cooperated with key top-supported portion, thereby each key top component is bearing in each assembly area, key top of base member with cantilever position, and assembles with the sequence arrangement of regulation.Adopt piano key switch device, promote the key top component by the dome projection of the switch of switch rubber, thereby each press section is exposed from the guide hole of cover, in this state, the state that relative switch module separates in the switch plate that keeps being arranged on the dome convex inner surface of switch and the wiring substrate.Adopt piano key switch device, if the press section of depressible keys top component, the dome bulging deformation of then described press section compressing switch makes relative switch plate contact with switch module, carries out switch with this.Adopt piano key switch device, each key top component will be that rotational trajectory circle and the connecting rod auxiliary section with base member of the connecting rod connecting portion at center is the upper limit position that the intersection point of rotational trajectory circle of the linkage component at center is defined as the press section with the fulcrum by each linkage component, and described press section is exposed from the guide hole of cover.Adopt piano key switch device,, dwindling under the state of space, each key top component is assemblied on the base member, realize miniaturization with this by the pivot point structure is set on the bottom surface of press section.
In addition, piano key switch device of the present invention has base member, it is formed with key top-supported portion and connecting rod auxiliary section respectively in assembly area, a plurality of keys top, wherein, described key top-supported portion is separated to erect by broad ways and a pair of wall that forms the fulcrum hole that longitudinally connects respectively simultaneously is set constitutes, described connecting rod auxiliary section by at the nearly body one side position place relative with these key top-supported portions respectively quadrature erect a pair of wall that the connecting rod mating holes that is formed with the broad ways perforation simultaneously is set and constitute.Piano key switch device has the key top component, it is formed with fulcrum and connecting rod connecting portion, wherein, described fulcrum has a pair of cooperation fulcrum, this separates in the bottom end broad ways of the depth direction of press section cooperating fulcrum, section is roughly L word shape and integrally formed, and embed respectively in the fulcrum hole of key top-supported portion of relative described base member, described connecting rod connecting portion is made of a pair of wall of Width, this is positioned at wall on the bottom surface of nearly body one side of press section, broad ways is separated formation, and is formed with the connecting rod mating groove on same axle.Piano key switch device has the whole linkage component of C word shape roughly of being, described linkage component by respectively with the connecting rod auxiliary section that is arranged on base member on the connecting rod mating holes cooperate and on same axle a pair of fulcrum respect to one another end, constitute with these fulcrum end parts parallel and with the carrier bar of each connecting rod mating groove cooperation of key top component, a pair of connecting portion that is connected described carrier bar and fulcrum end with specific length.
Employing has the piano key switch device of the present invention of above structure, under the carrier bar of the linkage component of each key top component in the fulcrum end being embedded be formed at the connecting rod mating holes of the connecting rod auxiliary section on the base member and the state that the connecting rod mating groove cooperates, cooperate by the key top-supported portion on making fulcrum and being formed at base member, thereby be assembled in each zone of base member.Adopt piano key switch device, cooperate with key top-supported portion by making fulcrum, thus with cantilever position, end of supporting depth direction free to rotate, simultaneously by linkage component nearly the body side be limited to the height and position of regulation.
Adopt piano key switch device, just can assemble, therefore, can reduce assembling man-hour and reduce cost by open-and-shut operation because each component parts need not screw clamp etc.Adopt piano key switch device,, therefore saved the space owing to adopted the structure that on the bottom surface of press section, forms the support of fulcrum and linkage component.Adopt piano key switch device, each key top component keeps the press section along its length by the carrier bar of linkage component, thereby can carry out the compressing deformation operation of the dome projection of switch under the state that does not have or reverse.Adopt piano key switch device, the connecting rod auxiliary section by the base member relative with each fulcrum end keeps linkage component, thereby can prevent horizontal direction loosening of each key top component by carrier bar.Therefore, adopt piano key switch device, when carrying out correct switch work, can also improve durability.
Description of drawings
Fig. 1 is the perspective view of notebook personal computer, and this computer has used the piano key switch device that provides as embodiments of the invention.
Fig. 2 is the longitudinal sectional drawing of major part in the piano key switch device.
Fig. 3 is the plane graph that cuts the major part of a part in the piano key switch device.
Fig. 4 is the key diagram of the supporting structure of key top component.
Fig. 5 is the longitudinal sectional drawing of the major part of piano key switch device in the past.
Fig. 6 is the perspective view of the major part of key top component in the past.
Embodiment
Below, with reference to accompanying drawing, the embodiment of piano key switch device of the present invention is elaborated.Embodiment has provided the suitable example of the keyboard 3 on the main part 2 that is installed in notebook personal computer 1.In PC 1,,, can assemble the display part 5 that LCDs is housed by linkage 4 with respect to main part 2 with freely closing.PC 1 is equipped with the keyboard 3 that constitutes with regulation sequence arrangement text button 6 and a plurality of keys such as numerical key 7 or various function key 8 in main part 2, simultaneously, be equipped with recessed dial 9.Since in PC 1, such as described later, dwindled each key interval each other, therefore, can realize the miniaturization of keyboard 3.
In keyboard 3, each key assembles by the structure of the key type piano key switch device 10 that Fig. 2～Fig. 4 describes in detail.Self-evident, keyboard 3 needn't constitute by the piano key switch device 10 that whole keys are housed, and for example as keyboard in the past, also can cooperate the device mixing use of formation with the top that makes each key with the tubular actuator in being arranged at switch main body.
Piano key switch device 10 is assembled between the cover 12 that base member 11 that the framework by main part 2 constitutes and the panel by keyboard 3 constitute as shown in Figure 2.In piano key switch device 10, on base member 11, be assembled with wiring substrate 13 and switch rubber 14 with coincidence status.In piano key switch device 10, in each zone of base member 11, the key top component 15 that constitutes text button 6 and numerical key 7 or various function key 8 betwixt (?) linkage component 16 is housed and assembles respectively.
In key top-supported portion 18, as shown in Figure 3, each the key top-supported 18A of portion, 18B are made of a pair of wall, and described wall is in (the position in left side in Fig. 2, depth position of installation region, key top 17.Below, be called the rear position) to locate, broad ways (left and right directions in Fig. 3) is separated and one uprightly is provided with.In detail, key top-supported portion 18 is made of the wall of the relative fore-and-aft direction of direction (left and right directions in Fig. 2) quadrature, and be formed with respectively the fulcrum hole 20A, the 20B that connect along fore-and-aft direction (below, except the situation of indivedual explanations, be referred to as fulcrum hole 20).
In connecting rod auxiliary section 19, as shown in Figure 3, each connecting rod auxiliary section 19A, 19B are positioned at slightly nearly body side by installation region, key top 17 (below, be called anterior position), and are separated and the upright a pair of wall that is provided with of one constitutes by broad ways.In detail, connecting rod auxiliary section 19 is by to constitute with the be parallel to each other wall of face-off of the direction of relative key top-supported portion 18 quadratures, and be formed with connecting rod mating holes 21A, the 21B that broad ways respectively connects (below, except the situation of indivedual explanations, be referred to as fulcrum hole 21).
Though omitted detailed description to wiring substrate 13, but for example can on the copper facing substrate, implement suitable pattern and form processing, remove the copper foil layer that does not need part, thereby on insulated substrate, form suitable conductive pattern, and as described above, on base member 11, determine position and assembling.Wiring substrate 13 is under the state that is assembled in base member 11, in the position relative with each installation region, key top 17, be formed with pair of switches module 22A respect to one another, 22B (below, except the situation of indivedual explanations, be referred to as switch module 22) respectively.
Switch rubber 14 has flexible insulating material by synthetic rubber etc. and constitutes, and is relative with each installation region 17, key top under situation about being assembled on the base member 11, and each switch dome protruding 23 forms one.Switch dome protruding 23 for the outstanding position that forms of truncated cone roughly, as described later, under common state, promotes key top component 15, so that it exposes from cover 12 as shown in Figure 2.Switch dome protruding 23 engages with the switch plate 24 that is made of conductor foil at end face.
Key top component 15 forms by for example ABS resin synthetic resin such as (third rare nitriles-Ding ethene-styrene polymerization resin), and by press section 25, outstanding a pair of fulcrum 26A, the 26B that forms of one on the bottom surface of described press section 25 (below, except the situation of indivedual explanations, be referred to as fulcrum 26) and connecting rod connecting portion 27A, 27B (below, except the situation of indivedual explanations, be referred to as connecting rod connecting portion 27) constitute.Though operation format that key top component 15 is carried out corresponding to various functions or by finger etc., take different shapes or size, still, should be all in the form of a substantially rectangular tray shape.In key top component 15, it is slightly high simultaneously to the inclined plane that rear side reduces gradually that press section 25 forms front sides, and be provided with numeral on the surface or from the side that cover 12 exposes, literal or suitable mark etc.
In fulcrum 26, as shown in Figure 2, the rear side end 25a of press section 25 and cooperate the relative spacing of fulcrum 29 more bigger than the top of the fulcrum hole 20 of key top-supported portion 18, simultaneously, the section configuration that cooperates fulcrum 29 is with the circular-arc formation of the opening shape that is slightly less than fulcrum hole 20.Make fulcrum 26 as the back describes in detail, embed in the fulcrum hole 20 relative from the place ahead, and formation is with the rotating fulcrum of the key top component 15 in cantilever position, the installation region, key top 17 that is assemblied in base member 11 free to rotate with cooperating fulcrum 29.
Connecting rod connecting portion 27 as shown in Figures 2 and 3, the tab-like bottom surface that is formed in 25 the place aheads, press section.Connecting rod connecting portion 27 is with the L shaped one-tenth in the interval of distance fulcrum 26.In connecting rod connecting portion 27, each connecting rod connecting portion 27A, 27B are formed by the block-shaped protrusion of a pair of horizontal expansion near the both sides of Width, this to projection slightly than the 19 more close inboards, connecting rod auxiliary section of base member 11.
In connecting rod connecting portion 27, be formed with connecting rod mating groove 30A, 30B (below, except the situation of indivedual explanations, be referred to as connecting rod mating groove 30) on the same axis mutually.Connecting rod mating groove 30 is made of described internal diameter in back and linkage component 16 external diameters semi-circular recesses about equally.Connecting rod connecting portion 27 as the back will describe in detail, coupler link parts 16, and determine to be assemblied in freely to rotate the position of the free end side of the key top component 15 in the installation region, key top 17 of base member 11.
In key top component 15, as shown in Figure 2, on the bottom surface of press section 25, be formed with the actuating projection 31 of docking with the switch of above-mentioned switch rubber 14 dome protruding 23.Activate projection 31 and should have suitable shape, so that no matter whether operating portion 25 tilts, under nature, whole that activates projection 31 all can dome protruding 23 the end face of contact-making switch.
In linkage component 16, the length of fulcrum end 32 should be enough to breakthrough form and be formed in connecting rod mating holes 21 in each connecting rod auxiliary section 19 of base member 11.In linkage component 16, carrier bar 33 is formed on than on the slightly long axle of the relative spacing of each connecting rod auxiliary section 19.In linkage component 16, connecting portion 34 forms with length M, and this length can remain on the press section 25 of key top component 15 the height and position place of regulation.
In linkage component 16, connecting portion 34 makes key top component 15 rotate with respect to base member 11 in the scope of its length M.In linkage component 16, the carrier bar 33 that cooperates with connecting rod mating groove 30 passes through to keep the operating portion 25 of key top component 15 near the roughly whole zone its free end, at Width, thereby key top component 15 is rotated in the mode that can not produce or reverse.Linkage component 16 keeps the confined state of key top component 15 as mentioned above with respect to base member 11.
In piano key switch device 10, as mentioned above, set fulcrum 26 and the connecting rod connecting portion 27 that forms key top component 15 with interval L, simultaneously, form the connecting portion 34 of linkage component 16 with length M.In piano key switch device 10, handle press section 25 by pushing, key top component 15 is that fulcrum rotates downwards to cooperate fulcrum 29.In piano key switch device 10, as shown in Figure 4, the connecting rod connecting portion 27 of key top component 15 is being the center with fulcrum 26, is being to move on the 1st rotational trajectory circle c1 of radius with above-mentioned interval L.In addition, in piano key switch device 10, as shown in Figure 4, connecting rod connecting portion 27 is the center in the fulcrum end 32 with linkage component 16, be to move on the 2nd rotational trajectory circle c2 of radius with above-mentioned length M.
In piano key switch device 10, under nature, promote key top component 15 by switch dome protruding 23, stop its moving downwards with this.In piano key switch device 10, as mentioned above, key top component 15 is limited by the 1st rotational trajectory circle c1 and the 2nd rotational trajectory circle c2 and carries out rotational motion.In piano key switch device 10, as mentioned above, above-mentioned interval L is set at much larger than above-mentioned length M, at the intersection point place of the 1st rotational trajectory circle c1 and the 2nd rotational trajectory circle c2, the upper limit position of limit key top component 15.In addition, in piano key switch device 10, as mentioned above, by linkage component 16, key top component 15 can realize preventing that its fulcrum 26 from coming off from the key top-supported portion 18 of base member 11.
In piano key switch device 10, embed connecting rod mating holes 21 by making fulcrum end 32, linkage component 16 is assemblied on the base member 11.In piano key switch device 10, as mentioned above, make to cooperate fulcrum 29 to insert fulcrum hole 20 and be mated from nearly body side, the carrier bar 33 of linkage component 16 is cooperated with connecting rod mating groove 30, with this key top component 15 is assembled on the base member 11.In piano key switch device 10, need not special anchor clamps or screw clamp, by open-and-shut operation, just can be with respect to base member 11 fitted key top component 15.
In addition, will not be defined as the assembling of carrying out base member 11 and key top component 15 and linkage component 16 by described order especially by piano key switch device 10.Piano key switch device 10 also can be assembled on the base member 11 for example under the state of assembling key top component 15 and linkage component 16.
In piano key switch device 10, handle press section 25 by pushing, making key top component 15 is that fulcrum rotates downwards to pass through to activate dome protruding 23 distortion of projection 31 compressing switches to cooperate fulcrum 29.In piano key switch device 10, dome protruding 23 the switch plate 24 of the switch of compressive deformation makes relative switch module 22A, 22B short circuit, with this key of stipulating output.In piano key switch device 10,, make key top component 15 return to primary position by dome protruding 23 the elastic restoring force of switch by removing the pressing force of press section 25.
In piano key switch device 10, owing to supported the bottom surface of the press section 25 of key top component 15 by the carrier bar 33 of linkage component 16, therefore, even under the state of pushing run-off the straight when handling sidepiece, key top component 15 can not produce descending motion yet.In piano key switch device 10, the linkage component 16 that forms with C word shape roughly keeps fulcrum ends 32 by connecting rod auxiliary section 19, prevents the loosening of key top component 15 horizontal directions with this.In piano key switch device 10, key top component 15 is carried out the compressing deformed movement of switch dome protruding 23 with stable attitude, carries out correct switch with this, thereby can improve reliability.In piano key switch device 10, needn't the special provision pressing position just can carry out the pressing operation of key top component 15, also can improve operability with this.
In piano key switch device 10, outstanding formation has the bigger fulcrum of mechanical rigid 26 in the bottom surface of key top component 15.But, in piano key switch device 10,, thereby improve durability even under and the situation of operating roughly higher, still can restrain the breakage of fulcrum 26 in frequency of utilization.In addition, in piano key switch device 10, owing to adopted fulcrum 26 and the connecting rod connecting portion 27 that is connected the linkage component 16 that plays above-mentioned retainer function to be integrally formed on the bottom surface of press section 25 and structure that component parts can not given prominence to from peripheral part, therefore, can be installed on the base member 11 dwindling under the state of space, thereby can realize miniaturization.
In addition, in above-mentioned piano key switch device 10, though adopted the key top-supported portion 18 that makes base member 11 to separate and respectively by a pair of structure that constitutes with fulcrum 26 broad wayss of key top component 15, but for example under the situation of more small-sized key top component 15, also can constitute by one respectively, and under the situation of relatively large key top component 15, then can constitute by a plurality of.In piano key switch device 10, though utilize the roughly linkage component 16 of C word shape, supported its fulcrum end 32 by pair of links auxiliary section 19 cooperations that are formed on the base member 11, but, for example under the situation of more small-sized key top component 15, the linkage component 16 of L word shape roughly can be bearing on the connecting rod auxiliary section 19 that is formed on the base member 11.
In piano key switch device 10, though formed key top component 15 with the rectangular shallow plate-like, self-evident, also can adopt for example suitable shape such as ellipse.
[invention effect]
As top detailed description the in detail, piano key switch device of the present invention has adopted such simple structure, promptly, with respect to the base member that forms key top-supported portion and connecting rod auxiliary section, assembled and be formed on the firm fulcrum that forms on the bottom surface, press section and each key top component of connecting rod connecting portion by being assembled in linkage component between described connecting rod connecting portion and the described connecting rod auxiliary section, by making supporting structure be contained in the bottom of press section, a plurality of key top component are being dwindled under the state of space, be assemblied on the base member, can realize the raising of miniaturization and durability thus.By piano key switch device, each key top component defines the upper limit position of press section by linkage component, simultaneously, prevent coming off of fulcrum and becoming flexible of horizontal direction, and under stable status, can carry out switch motion, therefore improve operability and reliability.
Claims (2)
1. piano key switch device is characterized in that being provided with:
In assembly area, a plurality of keys top, make the integrally formed base member of key top-supported portion and connecting rod auxiliary section respectively;
A plurality of key top component, described key top component is by the press section of exposing from the guide hole that is arranged on the cover, the fulcrum that is integrally formed on the bottom end of described press section depth direction and cooperates with described key top-supported portion, on the nearly body side bottom surface of described press section, with predetermined distance and the integrally formed connecting rod connecting portion formation of described fulcrum, by described fulcrum is cooperated with described key top-supported portion, thereby in each assembly area, key top of described base member, with cantilever position supporting and described key top component is installed, thereby make the sequence arrangement of described key top component with regulation;
Be formed with a plurality of switch modules relative and be assemblied in wiring substrate on the described base member with described each key top component;
Be assembled in the switch rubber on the described wiring substrate, it has the dome projection of a plurality of switches, the dome projection of these switches is between each switch module of the bottom surface of described each key top component and described wiring substrate and one is outstanding respectively forms, by promoting relative described key top component, in the switch plate that keeps being arranged on inner surface and state that described switch module separates, the action of depressing by described key top component, oppress the dome bulging deformation of described switch, thereby described switch plate is contacted with described switch module;
A plurality of linkage components, the length of these linkage components is lacked than the fulcrum of described key top component and the interval of connecting rod connecting portion, and is to assemble respectively to form between the connecting rod auxiliary section of described connecting rod connecting portion and described base member;
Described each key top component will be that rotational trajectory circle and the connecting rod auxiliary section with described base member of the described connecting rod connecting portion at center is the upper limit position that the intersection point of the rotational trajectory circle at center is defined as described press section with the fulcrum of described key top component by described each linkage component, simultaneously, by the pivot point structure is set in described press section, dwindling under the state of space, be assemblied on the described base member.
2. piano key switch device according to claim 1 is characterized in that, is provided with:
Described base member, it is formed with described key top-supported portion and described connecting rod auxiliary section in assembly area, a plurality of keys top, wherein, described key top-supported portion is separated to erect by broad ways and a pair of wall that forms the fulcrum hole that longitudinally connects respectively simultaneously is set constitutes, described connecting rod auxiliary section by at the nearly body side position place relative with these key top-supported portions respectively quadrature erect a pair of wall that the connecting rod mating holes that is formed with the broad ways perforation simultaneously is set and constitute;
Described key top component, it is formed with described fulcrum and described connecting rod connecting portion, wherein, described fulcrum has a pair of cooperation fulcrum, this separates in the bottom end broad ways of depth direction cooperating fulcrum, section is roughly L word shape and integrally formed, and embed respectively in the fulcrum hole of relative described key top-supported portion, described connecting rod connecting portion is made of a pair of wall of Width, this is positioned at the nearly body side of bottom surface to wall, broad ways is separated formation, and is positioned on the same axle, and is formed with the connecting rod mating groove;
Integral body is the described linkage component of C word shape roughly, described linkage component is by a pair of fulcrum end that cooperates with the connecting rod mating holes of described base member respectively, be communicated with the carrier bar that cooperates with these fulcrum end parts parallel and with each connecting rod mating groove of described key top component, a pair of connecting portion that connects described carrier bar and described fulcrum end with specific length constitutes.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003155267A JP2004356050A (en) | 2003-05-30 | 2003-05-30 | Key switch equipment |
| JP2003155267 | 2003-05-30 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101361544A Division CN100428540C (en) | 1997-12-19 | 1998-12-09 | Cathodes comprising electroactive sulfur materials and secondary batteries using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1574142A true CN1574142A (en) | 2005-02-02 |
Family
ID=34049690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200410000488.4A Pending CN1574142A (en) | 2003-05-30 | 2004-02-02 | Key switching device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2004356050A (en) |
| CN (1) | CN1574142A (en) |
| TW (1) | TW200426869A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012119516A1 (en) * | 2011-03-08 | 2012-09-13 | Jiang Haibo | Keyboard applying plastic injection molded baseboard and production method thereof |
| CN104260638A (en) * | 2013-12-13 | 2015-01-07 | 苏州旲烔机电科技有限公司 | Automobile Gear-shift Stir Sheet Switching Device |
| CN108362869A (en) * | 2018-04-24 | 2018-08-03 | 福州迈新生物技术开发有限公司 | A kind of incubation box |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201101356A (en) * | 2009-06-18 | 2011-01-01 | wei-ze Hong | Keyboard |
| CN107481881B (en) * | 2017-08-04 | 2020-02-04 | 苏州达方电子有限公司 | Key structure |
| JP7328139B2 (en) | 2019-12-23 | 2023-08-16 | カシオ計算機株式会社 | Key unit and electronic equipment |
-
2003
- 2003-05-30 JP JP2003155267A patent/JP2004356050A/en active Pending
- 2003-12-23 TW TW092136637A patent/TW200426869A/en unknown
-
2004
- 2004-02-02 CN CN200410000488.4A patent/CN1574142A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012119516A1 (en) * | 2011-03-08 | 2012-09-13 | Jiang Haibo | Keyboard applying plastic injection molded baseboard and production method thereof |
| CN104260638A (en) * | 2013-12-13 | 2015-01-07 | 苏州旲烔机电科技有限公司 | Automobile Gear-shift Stir Sheet Switching Device |
| CN108362869A (en) * | 2018-04-24 | 2018-08-03 | 福州迈新生物技术开发有限公司 | A kind of incubation box |
Also Published As
| Publication number | Publication date |
|---|---|
| TW200426869A (en) | 2004-12-01 |
| JP2004356050A (en) | 2004-12-16 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |