CN2216692Y - Key board with changable keys - Google Patents

Abstract

The utility model relates to a key board with changeable keys, characterized in that a large L-shaped key, a small L-shaped key, and a long key are provided with long key columns and short key columns; 1*1 key is provided with the long key column. The long key columns and short key columns project along the inner plane of a key cap for forming an upper part and a lower part. The upper part of the long key column is provided with a convex column, and the lower end of the convex column forms an end point. The lower part of the long key column is provided with an inverse hook, and a fixing base is provided with the key column space for inserting the key column. The inner wall thereof is provided with an insertion groove, and the convex column matches with the insertion groove. The end of the key column space is provided with a convex ring, and the lower side of the convex ring is stretched with one space. The space is placed with conductive rubber, and the long key column is positioned on the upper side of the conductive rubber. The short key column is positioned inside the part of the key column space.

Description

The novel keyboard of replaceable key

The utility model relates to the keyboard that computer is used, and refers to a kind of novel keyboard of replaceable key especially.

The general keyboard that uses, roughly on holder, be provided with button, this holder and conductive rubber and thin film circuit cooperatively interact, when number of keys difference or key arrangement mode not simultaneously, holder and conductive rubber and thin film circuit can't commonly use, therefore must do the replacing of keyboard, and the expense of die sinking is very big, the special function key of distinguishing of also often will typewriting is on the market done a little replacing, can become the button of two difference in functionalitys as the "enter" key" of L type, the 1*2 key can be divided into two independent keys, so holder and conductive rubber and thin film circuit all will be made an amendment according to above-mentioned change; Country variant has the keyboard that different chains are counted pattern in addition, its chain is counted difference, can cause holder and conductive rubber and thin film circuit that multiple different types is arranged, this is for manufacturer, die sinking is very expensive, in order to improve the problems referred to above, has on the market directly to make the key post be pressed on the conductive rubber, but this kind mode can make the key post be urged to conductive rubber and destroy thin film circuit when long-term use or improper use; Moreover existing key post all adopt balance stem in case push unbalance, can't do the replacement work of button.

The purpose of this utility model is: the keyboard Designing that the different and different bond numbers of the identical but key arrangement mode of a kind of suitable bond number are provided, this design can a shared button holder, conductive rubber and thin film circuit, and when identical but key arrangement mode difference of bond number and number of keyboard keys change, only need to change the button pattern of keyboard promptly applicable to country variant; Provide a kind of, can change voluntarily greatly according to the custom of oneself importing, little L type button, elongated is pressed chain and 1 * 1 button, selects to be fit to the key arrangement of input habit own; Provide a kind of and come the protective film circuit with the anti-line structure of twice, the first line of defence is the structure that the end points of projection is against convex contact ring, and defence line, second road is that projection is punched convex contact ring and caused the inner side plane of keycap to be against structure on the holder end face.

The purpose of this utility model also is: be equipped with long and short key post on big or small L type button and elongated button, make Area of bearing big, when depressing button, length chain post all contacts with conductive rubber, can make the smooth balance resilience of length key post, and reach the purpose that need not use balance stem, in a word for achieving the above object, provide a kind of novel keyboard of replaceable key.

The purpose of this utility model is achieved in that a kind of novel keyboard of replaceable key, comprise big or small L type button, the elongated button, 1 * 1 button, holder, conductive rubber and thin film circuit are formed, and it is characterized in that: big or small L type button, be equipped with length key post on the elongated button, 1 * 1 button is provided with long key post; Long and short key post extends at the inner side plane place of keycap, and long and short key post formation upper and lower part, and surface, long key post top is provided with plural projection, and the projection lower end forms an end points, and the lower part of long key post is provided with barb; Holder is provided with the key column space that the key post is inserted, its inwall is provided with inserts groove, projection with insert groove and match, end place in the key column space establishes a convex contact ring, this continuity one space, convex contact ring below, conductive rubber can be put in this space, and its long key post is positioned at the conductive rubber top, and short key post is positioned at the part of key column space.

Principle of work is as follows: when depressing by chain, the projection of long key post can be against on the convex contact ring, and the distance that long key post is descended is depressed conductive rubber with thin film circuit just and contacted, and makes this circuit turn-on; And short key post only can be positioned at the conductive rubber top, and conductive rubber is not contacted with thin film circuit, so relative circuit can conducting, this is a first line of defence; When the projection that connects key was punched convex contact ring, the inner side plane of keycap and the top of holder offseted and form defence line, second road, can the protective film circuit.

The utility model concrete structure further specifies by following examples and accompanying drawing thereof:

Fig. 1 is the utility model stereo appearance figure

Fig. 2 is the utility model three-dimensional exploded view

Fig. 3 is the utility model assembling three-dimensional system diagram

Fig. 4 is the utility model assembling view

Fig. 5 is the utility model action diagram (one)

Fig. 6 is the utility model action diagram (two)

Fig. 7 is the different keyboard synoptic diagram () of pressing the chain collocation of the utility model

Fig. 8 is the keyboard synoptic diagram (two) of the utility model different key collocation

Fig. 9 is the different keyboard synoptic diagram (three) of pressing the chain collocation of the utility model

Figure 10 is the keyboard synoptic diagram (four) of the utility model different key collocation

Figure 11 is the keyboard synoptic diagram (five) of the utility model different key collocation

Figure 12 is the different keyboard synoptic diagram (six) of pressing the chain collocation of the utility model

Figure 13 is the keyboard synoptic diagram (seven) of the utility model different key collocation

Referring to Fig. 1,2, a kind of novel keyboard of replaceable key comprises big or small L-type button 1, and elongated is pressed chain 2,1 * 1 button 3, holder 4, and conductive rubber 5a, thin film circuit 6a forms, wherein

L-type button 1 extends a long key post 13 and short key at inner side plane 12 places of keycap 11 Post 14, this long and short key post 13,14th is made of upper and lower two parts; Long key post 13 Top is arranged with more than one projection 15, and the end place of projection 15 forms an end points 17, long key The bottom of post 13 is arranged with more than one barb 16;

Microscler button 2 extends a long key post 23 and short key at inner side plane 22 places of keycap 21 Post 24, this long and short key post 23,24th is made of upper and lower two parts; Long key post 23 Top is arranged with more than one projection 25, and the end place of projection 25 forms an end points 27, long key The bottom of post 23 is arranged with more than one barb 26;

1 * 1 button 3 extends a long key post 33 at inner side plane 32 places of keycap 31, should Long-chain post 33 is to be made of upper and lower two parts; Top is arranged with more than one projection 35, The end place of projection 35 forms an end points 37, and the bottom of long key post 33 is arranged with more than one fall Hook 36;

Holder 4 is provided with the key column space 41 that the key post is inserted, and its inwall is provided with inserts groove 42, Projection with insert groove 42 and cooperate, establish a convex contact ring 43 at the end place of key column space 41, this protruding supporting Encircle 43 belows and continue a space 44, conductive rubber 5a can be put in this space 44, its long key post Be positioned at conductive rubber 5a top, short key post is positioned at the part of key column space 41.

Embodiment: referring to Fig. 3-4, when elongated button 2 is assembled with holder 4, that utilizes that projection 25 on the long key post 23 cooperates holders 4 inserts groove 42, long key post 23 is inserted in the chain column space 41 of holder 4, the top of this duration key post 23 can gently be against on the inwall of key column space 41, and long key post 23 borrows its barb 26 to cooperate convex contact ring 43 to deviate to prevent long key post 23, and holder 4 is put a conductive rubber 5a in space 44, put a thin film circuit 6a in the below of conductive rubber 5a; Short chain post 24 then is positioned at the part of key column space 41 and up.

L type button 1 is identical with elongated button 2 assembling modes, moves identical.Be example account for motion relation now with elongated button 2.Referring to Fig. 5, when elongated button 2 pressurizeds moved downwards, long key post 23 descended along chain column space 41, and the end points 27 of projection 25 offsets simultaneously with convex contact ring 43, and conductive rubber 5a contacts with thin film circuit 6a and conducting; And short key post 24 descends along key column space 41, when anchor ring 28 and convex contact ring 43 offset, and also descend certain distance and being positioned on the conductive rubber 5a of short key post 24, and conductive rubber 5a does not contact with thin film circuit 6a; When the external force on the elongated button 2 was removed, conductive rubber 5a will execute a bounce made long and short key post 23,24 share same bounce and rising simultaneously, so the equilibrant that rises is splendid, must not use balance stem fully is that practicality is splendid.

When keyboard uses for a long time and beaten by gravity, can make convex contact ring 43 destructions of projection 25 end points 27 of long key post 23 with holder 4, this moment, the inner plane 22 owing to keycap 21 can offset with the end face of holder 4, long exactly key post 23 descends and increases a little, can not injure thin film circuit 6a, so play the effect in defence line, second road yet.(with reference to figure 6)

Keyboard of the present utility model can be shared a holder 4 and conductive rubber 5a and thin film circuit 6a, so that different bond numbers or same chain number and various key arrangement mode are provided, multiple choices are arranged to adapt to the novel keyboard of input habit own for the user, but the button pattern of this kind keyboard changes the structure that can not have influence on keyboard, because this creation has utilized the nonconducting purpose of short key post, event makes the combination form of button have interchangeability such as Fig. 7-12 is the assembling synoptic diagram of different keyboards, if the key arrangement of the input habit of employing own, need only change L type button, elongated button and 1 * 1 button get final product.

As the keyboard specification with this country is example, the "enter" key" of keyboard is a L type button 1, it contains length key post 13,14, and L type button 1 only uses a thin film circuit 6a contact 61a, the contact of other two thin film circuit 6a is not then had a function, so this case design conductive film 6a contact that a kind of L type button 1 will not need function relatively with a pair of short key post 14 relative it, when the "enter" key" of pressing L type button 1, having only the conductive film 6a contact of Enter function to be depressed by the long key post 11 of chain 1 by the L type makes conductive rubber 5a communicate with contact, then die mutually can't conducting (referring to Fig. 5) because short key post 14 can't make conductive rubber 5a contact with thin film circuit 6a for the contact 61a of other two thin film circuit 6a, to reach the keyboard person of required specification; If 2 of elongated buttons are also identical with aforesaid way, no longer repeat.

Referring to Figure 13, be the japanese keyboard synoptic diagram of DOS/V106KEY, this embodiment only need change thin film circuit and button holder and conductive rubber that can shared same specification, and need only change the L type button of this creation, and the structure of elongated button and 1 * 1 button gets final product.

In sum, the utility model has the advantage of:

1, adopt the L-type button, long key and 1 * 1 button are assembled into for the element of replacing button The keyboard of various types is applicable to country variant, and can carry out button row according to the custom of input itself Row.

2, owing to adopt the structure in twice defence line, so protected thin film circuit to be without prejudice, improved The service life of keyboard.

3, because length key post is shared the bounce effect of same conductive rubber, and rise simultaneously, so The equilibrant force that rises is splendid, no longer need balancing pole, and having saved spending and having reduced cost.

Claims (3)

1, a kind of novel keyboard of replaceable key comprises big or small L type button, the elongated button, 1 * 1 button, holder, conductive rubber and thin film circuit are formed, it is characterized in that: big or small L type button, be equipped with length key post on the elongated button, 1 * 1 button is provided with long key post; Long and short key post extends at the inner side plane place of keycap, and long and short key post formation upper and lower part, and surface, long-chain post top is provided with plural projection, and the projection lower end forms an end points, and the lower part of long-chain post is provided with barb; Holder is provided with the chain column space that the key post is inserted, its inwall is provided with inserts groove, projection with insert groove and match, end place in the key column space establishes a convex contact ring, this continuity one space, convex contact ring below, conductive rubber can be put in this space, and its long key post is positioned at the conductive rubber top, and short key post is positioned at the part of key column space.

2, the novel keyboard of replaceable key according to claim 1 is characterized in that: the projection at button pressed duration key post can be against on the convex contact ring, and the distance that the long-chain post is descended makes the thin film circuit conducting just.

3, the novel keyboard of replaceable key according to claim 1 is characterized in that: when the projection on the key post was punched convex contact ring, the inner side plane of keycap and the top of holder offseted, and formed defence line, second road.

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