CN202487463U

CN202487463U - Keyboard with anti-falling keycaps

Info

Publication number: CN202487463U
Application number: CN2011205738790U
Authority: CN
Inventors: 蓝添良
Original assignee: Shenzhen Doking Electronic Technology Co Ltd
Current assignee: Shenzhen Hengyi Technology Co Ltd
Priority date: 2011-12-31
Filing date: 2011-12-31
Publication date: 2012-10-10
Anticipated expiration: 2021-12-31

Abstract

The utility model provides a keyboard with anti-falling keycaps. The keyboard with anti-falling keycaps comprises a keyboard body and a limiting plate mounted on the keyboard body. The keyboard body comprises a base board, a film circuit board arranged on the base board, an elastic body arranged above the film circuit board, scissor feet and the keycaps. The scissor feet penetrate through the film circuit board and are mounted flexibly on the base board, the elastic body is arranged on the film circuit board and is arranged on a hollow part in the middle of the scissor feet, and the keycaps are mounted on the scissor feet above the elastic body. Each keycap comprises a top surface and side surfaces connected with the top surface, one side surface or two opposite side surfaces of each keycap stretch outward and are provided with clamping parts, the clamping parts on the two opposite side surfaces are arranged oppositely in a stagger mode, through holes are arranged on the film circuit board, positions of the through holes correspond to the positions of the clamping parts, several openings are arranged on the limiting plate corresponding to the keycaps, the keycaps penetrate through the openings, and the limiting plate covers the clamping parts.

Description

Prevent the keyboard that keycap comes off

Technical field

The utility model relates to a kind of keyboard that prevents that keycap from coming off, particularly a kind of keyboard that keycap comes off that prevents that reduces film circuit board cabling tortuosity.

Background technology

Keyboard is extensively applied to the input of computer and various electronic product equipment as a kind of common input unit.The button of the existing keyboard that uses is the absolute construction setting each other; Leave certain clearance between the keycap of button; The feather edge of the keycap of button is exposed, and the keycap side feather edge that this exposes can form a point of application, makes keycap receive outside destroy easily and comes off; Thereby cause keyboard to use, bring inconvenience for the daily use of people.

In addition, keyboard should have good sense of touch, and it relates to the contact area of keycap and hand, the stroke of keycap etc.This be keyboard Designing person the essential technical parameter of considering.

In addition; Keyboard is also more and more to be used with the public place out of doors, but when using with the public place out of doors, owing to the dust in the external environment is more; Dust very easily falls into keyboard through the equipment surface gap; It accumulates day by day, and is difficult to cleaning, if things go on like this has influence on the performance and the useful life of keyboard easily.

The utility model content

The purpose of the utility model is, a kind of keyboard that prevents that keycap from coming off is provided, and cooperates with limiting plate through the holding section; Can prevent effectively that keycap receives outside destroy and comes off; Reduce corresponding film circuit board cabling tortuosity, and have certain dustproof effect, manipulate sensitive and durable.

For realizing above-mentioned purpose; The utility model provides a kind of keyboard that prevents that keycap from coming off, and comprising: the keyboard body, be installed on the limiting plate on the keyboard body, the keyboard body comprises a substrate, be located at film circuit board on the substrate, be located at elastomer, scissors pin and the keycap of film circuit board top; Scissors was worn film circuit board and was movably installed on the substrate; Elastomer is located on the film circuit board and is placed the middle hollow-out parts of scissors pin, and keycap is installed on the scissors pin in the elastomer top, and each keycap comprises end face and the side that is connected with end face; One side of each keycap or relative two sides respectively stretch out and are provided with a holding section; Holding section on the two sides is the setting of staggering relatively relatively, and the position of corresponding holding section is provided with through hole on the film circuit board, and the corresponding keycap of limiting plate is provided with several openings; Keycap passes opening, and limiting plate covers on the holding section.

Corresponding holding section, said limiting plate bottom surface is provided with draw-in groove, and the holding section correspondence of keycap is contained in the draw-in groove of limiting plate.

Said substrate is provided with the groove of corresponding connection with through hole.

Parallel between said holding section and the end face, vertical between side and the end face.

Said limiting plate is processed by metal or plastic material.

The beneficial effect of the utility model: the utility model provides prevents the keyboard that keycap comes off; Staggered holding section is established in a side or relative two sides through at keycap; Make keycap more firmly in the difficult drop-off cooperating with limiting plate; Also reduce the cabling tortuosity of corresponding film circuit board, simplified processing process; In addition,, have certain dustproof effect through being used of limiting plate, and the utility model manual dexterity, durable, be beneficial to keyboard integral miniaturization, slimming development.

In order further to understand the characteristic and the technology contents of the utility model, see also following detailed description and accompanying drawing, yet accompanying drawing only provides reference and explanation usefulness, is not to be used for the utility model is limited about the utility model.

Description of drawings

Below in conjunction with accompanying drawing, describe in detail through embodiment the utility model, the technical scheme that makes the utility model and other beneficial effect is obvious.

In the accompanying drawing,

Fig. 1 prevents the three-dimensional exploded view of keyboard one embodiment that keycap comes off for the utility model;

Fig. 2 is the solid combination sketch map of Fig. 1;

Fig. 3 is the cutaway view that prevents press-key structure in the keyboard that keycap comes off of Fig. 2;

Fig. 4 is the work sketch map of Fig. 3;

Fig. 5 prevents the structural representation of keycap in the keyboard that keycap comes off for the utility model.

Embodiment

For further setting forth technological means and the effect thereof that the utility model is taked, be described in detail below in conjunction with the preferred embodiment and the accompanying drawing thereof of the utility model.

Shown in Fig. 1-5; The utility model one embodiment prevents the keyboard that keycap comes off; It comprises: keyboard body 1, be installed on the limiting plate 2 on the keyboard body 1; Keyboard body 1 comprises a substrate 3, is located at the film circuit board 4 on the substrate 3, the elastomer 5 of being located at film circuit board 4 tops, scissors pin 6 and keycap 7, and scissors pin 6 passes film circuit board 4 and is movably installed on the substrate 3, and elastomer 5 is located on the film circuit board 4 and is placed the middle hollow-out parts of scissors pin 6; Keycap 7 is installed on the scissors pin 6 in elastomer 5 tops, and each keycap 7 forms press-key structure with corresponding elastomer 5, scissors pin 6, substrate 3 and film circuit board 4.

Special; Said each keycap 7 comprises end face 71 and the side 72 that is connected with end face 71; One side 72 of each

keycap

7 or 72 each extension of relative two sides are provided with a holding section 73; Parallel between holding section 73 and the end face 71, vertical between this side 72 and the end face 71, help in limited space, increasing the area of end face 71.This holding section 73 can be set to arbitrary shape; As square etc.; And can design the size of holding section according to actual conditions, each keycap 7 can be provided with a holding section 73 in its side 72 separately, also a holding section 73 can be set respectively on the relative two sides 72 of each keycap 7.Said limiting plate 2 corresponding keycaps 7 are provided with several openings 21, and keycap 7 passes opening 21, and limiting plate 2 covers on the holding section 73.Limiting plate 2 bottom surfaces also are provided with several erection columns, through erection column limiting plate 2 are installed in film circuit board 4 tops.As a kind of preferred embodiment; The holding section 73 of corresponding keycap 7 is provided with draw-in groove 22 in the bottom surface of limiting plate 2; Limiting plate 2 is resisted against 73 last time holding section, holding section 73 and can be contained in the draw-in groove 22 of corresponding limiting plate 2; Can obtain bigger stroke like this, be beneficial to the whole slimming of keyboard when guaranteeing button input feel.The corresponding holding section of the shape of said draw-in groove 22 shape is provided with.

Wherein, Holding section 73 in the said keycap 7 on the relative two sides 72 is the setting of staggering relatively; Link to each other thereby the holding section 73 of each keycap 7 is staggered successively; This kind holding section 73 be arranged so that respectively there is a holding section 73 its adjacent side 72 between the two adjacent keycaps 7, cooperate with limiting plate 2 against the time this two holding section 73 be resisted against limiting plate 2 bottom surfaces at interval side by side.And the position of corresponding holding section 73 is provided with through hole 41 on the film circuit board 4, and substrate 3 is provided with the groove 31 with through hole 41 corresponding connections.Owing to establish a holding section 73 at most on keycap 7 one sides; Holding section 73 on the adjacent side 72 of adjacent two keycaps 7 is staggered; When guarantee cooperating limiting plate 2 to avoid keycap 7 to come off, reduce more than 7 holding section machining complexity of keycap, also reduce the tortuosity of moving towards of circuit on the corresponding film circuit board 4; Realize that cabling is simpler, simplified processing process.When pushing keycap 7, the holding section on it can cooperate and is contained in through hole 41 and the groove 31, can obtain bigger stroke, guarantees button input feel.

Present embodiment is placed on substrate 3 on the fitter's bench earlier when assembling, and film circuit board 4 is installed on the substrate 3; Install elastomer 5, scissors pin 6, keycap 7 then successively; Then limiting plate 2 is covered on the keycap 7 and also can on its holding section 73, through utilizing limiting plate 2 periphery of gap between keycap 7 and the keycap 7 and whole keycap 7 be blocked, the feather edge of keycap 7 sides 72 can not expose; Make external force not have the point of application; Be difficult to destroy keycap 7, prevent that effectively keycap 7 from receiving outside destroy and come off, and effectively avoid extraneous dust to get into keyboard from the gap of surface of keyboard; And then the electrical property of keyboard circuit impacted, thereby guarantee the useful life and the serviceability of keyboard.Said limiting plate 2 can be processed by metal or plastic material, has stronger anti-destruction, can the better protection keyboard.

In sum; The utility model provides prevents the keyboard that keycap comes off; Staggered holding section is established in a side or relative two sides through at keycap; Make keycap more firmly in the difficult drop-off cooperating, also reduce the cabling tortuosity of corresponding film circuit board, simplified processing process with limiting plate; In addition,, have certain dustproof effect through being used of limiting plate, and the utility model manual dexterity, durable, be beneficial to keyboard integral miniaturization, slimming development.

The above; For the person of ordinary skill of the art; Can make other various corresponding changes and distortion according to the technical scheme and the technical conceive of the utility model, and all these changes and distortion all should belong to the protection range of the utility model claim.

Claims

1. a keyboard that prevents that keycap from coming off is characterized in that, comprising: the keyboard body, be installed on the limiting plate on the keyboard body; The keyboard body comprises a substrate, be located at film circuit board on the substrate, be located at elastomer, scissors pin and the keycap of film circuit board top, and scissors was worn film circuit board and is movably installed on the substrate, and elastomer is located on the film circuit board and is placed the middle hollow-out parts of scissors pin; Keycap is installed on the scissors pin in the elastomer top; Each keycap comprises end face and the side that is connected with end face, and a side of each keycap or relative two sides respectively stretch out and are provided with a holding section, and the holding section on the two sides is the setting of staggering relatively relatively; The position of corresponding holding section is provided with through hole on the film circuit board; The corresponding keycap of limiting plate is provided with several openings, and keycap passes opening, and limiting plate covers on the holding section.

2. the keyboard that prevents that keycap from coming off as claimed in claim 1 is characterized in that, corresponding holding section, said limiting plate bottom surface is provided with draw-in groove, and the holding section correspondence of keycap is contained in the draw-in groove of limiting plate.

3. the keyboard that prevents that keycap from coming off as claimed in claim 1 is characterized in that said substrate is provided with the groove of corresponding connection with through hole.

4. the keyboard that prevents that keycap from coming off as claimed in claim 1 is characterized in that, and is parallel between said holding section and the end face, vertical between side and the end face.

5. the keyboard that prevents that keycap from coming off as claimed in claim 1 is characterized in that said limiting plate is processed by metal or plastic material.