CN201323148Y

CN201323148Y - Press key and keyboard

Info

Publication number: CN201323148Y
Application number: CNU2008201898873U
Authority: CN
Inventors: 秦国强
Original assignee: Darfon Electronics Suzhou Co Ltd; Darfon Electronics Corp
Current assignee: Darfon Electronics Suzhou Co Ltd; Darfon Electronics Corp
Priority date: 2008-12-11
Filing date: 2008-12-11
Publication date: 2009-10-07
Anticipated expiration: 2018-12-11

Abstract

The utility model discloses a press key which comprises a base plate, a key cap and a balance bar, wherein the base plate is provided with a first guide part and a second guide part, the first guide part is provided with a first guide groove and a first retaining part which is convexly arranged on the upper side of the first guide groove, and the second guide part is provided with a second guide groove. The bottom of the key cap is provided with a fixed part. The balance bar is provided with a shaft part, and two opposite end portions of the shaft part are respectively bent and extended into a first side edge and a second side edge. When the press key is assembled normally, the first side edge and the second side edge are respectively arranged in the first guide groove and the second guide groove. Furthermore, when the press key is not assembled normally, the first side edge is stopped by the first retaining part, and is located on the upper side of the first retaining part, thereby when the press cap is pressed, and the bottom of the press cap is resisted by the first side edge, and can not complete a preset stroke.

Description

Button and keyboard

[technical field]

The utility model is relevant for a kind of button and keyboard.

[background technology]

Along with informationalized growth, information equipment is also and then universal day by day, with regard to the computer of normal contact, various label and pattern are not only being arranged on the market, its feeler more extends to places such as family, factory, company, office and school, its use aspect even be popularized for each stratum has almost become the daily essential product of people.Known computer comprises desktop PC and mobile computer, needs the collocation keyboard mostly, carries out operations such as character input for the user.

With regard to the employed keyboard of present desktop PC keyboard, all have keycap and substrate, and keycap and substrate between be provided with a key post.When the user struck down button, the key post will support the vertical moving of keycap work with respect to this substrate.By this, when keycap was subjected to pushing, the switch on the substrate can be triggered, and transmitted a reference signal and give processor, in order to drive the suitable output signal of this processor output.The outward appearance of the at present common button that keyboard comprised mostly is the structure of square (as: function keys such as A, F1, ESC) these buttons greatly and makes flowing mode all as mentioned above.

Except that this, the long or more special multiple button (as: function keys such as SPACE, SHIFT, ENTER) of shape of some length is also arranged in the keyboard, these buttons may have more special outward appearance because of factor such as frequency of utilization or collocation keyboard configuration.

For instance, the user uses the SPACE key often carrying out English Typing, and in order to allow the user can knock the SPACE key easily, the SPACE key on the keyboard is designed to have long outward appearance usually, allows the user can knock the SPACE key by the thumb of arbitrary hand by this.

Yet because the SPACE key is longer, the user may knock in the both sides of button but not middle position, thereby it is unstable to cause button to tilt, and maybe can't trigger the switch of this button relatively, even cause the damage of button.Therefore, present multiple button is equiped with balancing pole usually, is articulated on keycap bottom and the substrate.Balancing pole can prevent the multiple button unstable phenomenon that produces, and user's the strength of pushing can be dispersed in each place on the button fifty-fifty.Even user's application of force is in the button corner, and this corner is from very remote of trigger switch, and the strength that applies also can be dispersed on the whole button by the balancing pole average mark, makes button sensitive and comfortable handy more.

See also Figure 1A and Figure 1B, Figure 1A is the correct button schematic diagram that balancing pole is installed in the prior art, and Figure 1B is not then for correctly installing the button schematic diagram of balancing pole in the prior art.As shown in the figure, in prior art, button 9 comprises keycap 91 and substrate 93, the base 932 that keyhole 930 is set on the substrate 93 and is positioned at keycap 91 both sides opposite positions.In addition, the bottom surface of keycap 91 is provided with the key post 910 that is installed in movably in this keyhole 930.

In addition, button 9 also comprises balancing pole 92, and it is slidably mounted in the guide groove 934 on the base 932.Key post 910 collocation keyholes 930 and balancing pole 92 can support keycap 91, make that button 9 can be finished a predetermined stroke distance X really when keycap 91 is pressed.Shown in Figure 1B, when balancing pole 92 correctly is not installed in the guide groove 934, and when being arranged at base 932 tops mistakenly, because button 9 is not affected on the path of finishing the predetermined stroke distance X, so button 9 still can be carried out predetermined stroke X.Because whether keyboard is only tested in the detection of button usually can trigger switch (promptly finishing predetermined stroke), so even the installing mistake of 9 its balancing poles 92 of the button shown in Figure 1B, still can be by detecting.

[utility model content]

Therefore, a purpose of the present utility model is to provide a kind of button, and its button that can allow balancing pole correctly not install is detected easily because can't finish predetermined stroke, to overcome the problem in the known techniques.

According to an embodiment, button of the present utility model comprises substrate, keycap and balancing pole.This substrate is provided with first guidance part, second guidance part.This first guidance part has first guide groove and first stop section is convexly set in this first top of guide slot, and this second guidance part has second guide groove.

This keycap defines a bottom surface, and this bottom surface has at least one fixed part.In addition, this balancing pole has an axial region, and this axial region extends first side and second side from two relative ends difference bendings, and this axial region is fixed in this at least one fixed part.

When this button was normally assembled, this first side and this second side were mounted slidably respectively in this first guide groove and this second guide groove.Especially, when this button was not normally assembled, this first side was subjected to this first stopping of stop section and is positioned at this top, first stop section, causes when this keycap is pressed, this bottom surface of this keycap is subjected to this first side and conflicts, and can't finish a default stroke.

In an embodiment, also comprise elastomer according to button of the present utility model, and substrate is provided with a keyhole, and the bottom surface of keycap is provided with the key post that is installed in movably in this keyhole.This elastomer is arranged in this keyhole and this key post butt, moves both vertically to support relative this substrate of this keycap.

In an embodiment, second guidance part further has one second stop section and is convexly set in this second top of guide slot.By this, when this button was not normally assembled, this second side was subjected to this second stopping of stop section and is positioned at this top, second stop section, causes when this keycap is pressed, this bottom surface of this keycap is subjected to this first side and conflict in this second side, and can't finish this default stroke.

Another category of the present utility model is to provide a kind of keyboard, and it comprises substrate and a plurality of button that is arranged on this substrate.And at least one button in these buttons has aforesaid structure, causes when this button normally not assembled and this keycap when being pressed, and being conflicted in the bottom surface of this keycap, and can't finish default stroke.

Can describe in detail and appended graphic being further understood by following creation about advantage of the present utility model and spirit.

[description of drawings]

Figure 1A illustrates the button schematic diagram of the correct installation balancing pole of prior art.

Figure 1B illustrates the button schematic diagram that balancing pole correctly is not installed of prior art.

Schematic perspective view when Fig. 2 A illustrates and correctly assembled according to the button of an embodiment of this creation.

Fig. 2 B illustrates the explosive view of Fig. 2 A.

Generalized section when the button that Fig. 2 C illustrates Fig. 2 A is not pressed.

Portion's face schematic diagram when the button that Fig. 2 D illustrates Fig. 2 A is pressed.

Schematic perspective view when Fig. 3 A illustrates and correctly do not assembled according to the button of an embodiment of this creation.

Generalized section when the button that Fig. 3 B illustrates Fig. 3 A is pressed.

[embodiment]

This creation provides a kind of button and keyboard, and especially, the problem of correctly not installing by balancing pole by bond energy of this creation is detected easily because can't finish predetermined stroke.

See also Fig. 2 A to Fig. 2 D, the schematic perspective view of Fig. 2 A when normally being assembled according to the button 2 of the embodiment of this creation.Fig. 2 B illustrates the explosive view of button 2 among Fig. 2 A.Generalized section when the button that Fig. 2 C illustrates this embodiment is not pressed, the generalized section the when button that Fig. 2 D then illustrates this embodiment is pressed.As shown in the figure, in this embodiment, button 2 comprises a substrate 20, a keycap 21, a balancing pole 22 and an elastomer 24.

Substrate 20 is provided with one first guidance part 201, one second guidance part 202 and a keyhole 203.This first guidance part 201 has one first stop section 2011 and one first guide groove 2012, and this first stop section 2011 is convexly set in this first guide groove, 2012 tops.In addition, this second guidance part 202 has one second stop section 2021 and one second guide groove 2022, and this second stop section 2021 is convexly set in this second guide groove, 2022 tops.This keyhole 203 is hollow columnar, and is arranged between first guidance part 201 and second guidance part 202.

In this embodiment, this first stop section 2011 and this second stop section 2021 all are the rib shape, but in practice, the outward appearance of first stop section 2011 and this second stop section 2021 can be carried out suitable adjustment according to circumstances, and be not limited to here for example.

Note that in practical application second guidance part 202 on button 2 substrates 20 of this creation can only have second guide groove 2022, and not necessarily will have second stop section 2021.In addition, in practical application, first guidance part 201 and second guidance part 202 can be one-body molded from substrate 20.

Keycap 21 has a lower surface 211, a key post 212, a fixed part 213 and an inclined-plane 214.This inclined-plane 214 is around this lower surface 211, and constitutes the recess bottom surface of these keycaps 21 with this lower surface 211.As shown in the figure, key post 212 is installed in the keyhole 203 movably, and keyhole 203 tops with the scope of activities of limit key post 212, avoid key post 212 to deviate from from keyhole 203 toward projecting inward.

Balancing pole 22 has an axial region 221, this axial region 221 from two relative ends respectively bending extend a first side 222 and a second side 223.And the axial region 221 of balancing pole 22 is articulated in fixed part 213 rotationally.And when this button 2 was normally assembled, the first side 222 of balancing pole 22 and second side 223 were arranged at respectively in second guide groove 2322 of first guide groove 2312 of first guidance part 231 and second guidance part 232 slidably.

In addition, elastomer 24 is arranged in this keyhole 203, and is subjected to that the user pushes and when moving down, these key post 212 butts are also oppressed elastomer 24 when keycap 21, causes elastomer down to be out of shape to trigger to be arranged at substrate 20 lip-deep switches 25.When switch 25 is triggered by elastomer 234, can transmit a trigger signals to processing unit, and this trigger signals decoding be become suitable output signal by this processing unit.

Further, when the user stops to push keycap 21, elastomer 24 resiliences and to these key post 212 application of forces, pushing back to the home position with keycap 21.Hence one can see that, and key post 212, keyhole 203 and elastomer 24 can support these keycap 21 relative these substrates 20 and move both vertically.

In addition, when keycap 21 was pressed, the axial region of balancing pole 22 221 can rotate with respect to fixed part 213, and this first side 222 and second side 223 are also thereby driven, towards this first guide groove 2312 and this second guide groove, 2322 medial movement.By this, balancing pole 22 strength that can will be applied to button 2 by first side 222 and second side 223 in first guide groove 2312 and second guide groove 2322 slip and the strength of exerting pressure is evenly distributed on the balancing pole 22.Therefore, no matter be which position of the application of force on keycap 21, its strength that applies can be by mean allocation at whole button 2.

Note that as shown in the figure when the keycap 21 of this creation was subjected to pushing, the direction displacement D of the past substrate 20 of keycap 21 meeting itself was to finish its default stroke.In addition, in this embodiment, this bottom surface of the top of this first stop section 2011 and this keycap 21 apart from the distance D of E less than this default stroke.Certainly, in practice, also can be designed to more than or equal to distance D apart from E.

Further see also Fig. 3 A and Fig. 3 B, the generalized section the when button that the schematic perspective view when Fig. 3 A is not normally assembled for the button 2 shown in Fig. 2 A, Fig. 3 B then illustrate this embodiment is pressed.

As shown in the figure, when button 2 is not normally assembled, the first side 222 of this balancing pole 22 is subjected to stopping of this first stop section 2011 and is positioned at this 2011 tops, first stop section, and the second side 223 of this balancing pole 22 is subjected to stopping of this second stop section 2021 and is positioned at this 2021 tops, second stop section.

At this moment, when this keycap 21 was pressed, the bottom surface of this keycap 21 was subjected to this first side 222 and second side 223 and conflicts, and only can be toward the direction displacement F of substrate 20, and can't finish default stroke (can't toward the direction displacement D of substrate 20).

In practical application, width when keycap 21, or first side 222 and second side 223 length of protruding these first guidance parts 231 and this second guidance part 232 is when changing to some extent, in the abnormal situation of assembling of aforementioned keys 2, first side 222 and second side 223 also may be the inclined-planes 214 of conflict keycap 21, and can't finish default stroke.

In addition, in practical application, even second guidance part 202 of button of the present utility model 2 does not have second stop section 2021, this keycap 21 also can can't be finished default stroke because of the conflict that only is subjected to first side 222.

In an embodiment, the utility model also provides a kind of keyboard, and this keyboard comprises a plurality of buttons, and wherein at least one button (for example, but not being subject to SPACE key, ENTER key, SHIFT key etc.) has foregoing structure.Because the feature of this keyboard and accessible effect are as hereinbefore, therefore here repeat no more.

Compared to prior art, feature of the present utility model arranges the stop section above the guidance part of substrate. Cause This when the balancing pole of button is not correctly assembled, will make button can't finish its predetermined stroke, also may not have Method triggers the switch that is arranged on the substrate really. By this, the testing staff can detect at once this button not by Correct assembling, and improve immediately, prevent that defective products from flowing into rear station processing procedure.

Claims

1, a kind of button is characterized in that comprising:

Substrate is provided with first guidance part and second guidance part, and this first guidance part has first guide groove and first stop section is convexly set in this first top of guide slot, and this second guidance part has one second guide groove;

Keycap defines a bottom surface, and this bottom surface has at least one fixed part; And

Balancing pole has an axial region, and this axial region extends first side and second side from two relative ends difference bendings, and this axial region is fixed in this at least one fixed part;

Wherein when this button was normally assembled, this first side and this second side were mounted slidably respectively in this first guide groove and this second guide groove;

Wherein when this button end was normally assembled, this first side was subjected to this first stopping of stop section and is positioned at this top, first stop section, caused when this keycap is pressed, and this bottom surface of this keycap is subjected to this first side and conflicts, and can't finish a default stroke.

2, button as claimed in claim 1 is characterized in that further being provided with a keyhole on this substrate, and this bottom surface of this keycap is provided with a key post that is installed in movably in this keyhole.

3, button as claimed in claim 2 further comprises an elastomer, is arranged in this keyhole and this key post butt, moves both vertically to support relative this substrate of this keycap.

4, button as claimed in claim 1, the distance of this bottom surface that it is characterized in that the top of this first stop section and this keycap is greater than the length of this default stroke.

5, button as claimed in claim 1 is characterized in that this first guidance part and this second guidance part are one-body molded.

6, button as claimed in claim 1 is characterized in that this first stop section is the rib shape.

7, button as claimed in claim 1 is characterized in that this bottom surface of this keycap is recess, and has a lower surface and around an inclined-plane of this lower surface, and this lower surface has this fixed part; Wherein normally do not assembled when this button, and this keycap is when being pressed, this inclined-plane is subjected to this first side and conflicts, and can't finish this default stroke.

8, button as claimed in claim 1 is characterized in that this second guidance part further has one second stop section and is convexly set in this second top of guide slot; Wherein when this button is not normally assembled, this second side is subjected to this second stopping of stop section and is positioned at this top, second stop section, cause when this keycap is pressed, this bottom surface of this keycap is subjected to this first side and conflict in this second side, and can't finish this default stroke.

9, button as claimed in claim 1 is characterized in that this second stop section is the rib shape.

10, a kind of keyboard is characterized in that comprising at least one button as claimed in claim 1.