CN2490690Y

CN2490690Y - Key of keyboard

Info

Publication number: CN2490690Y
Application number: CN 01229408
Authority: CN
Inventors: 邱学令
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-07-25
Filing date: 2001-07-25
Publication date: 2002-05-08
Anticipated expiration: 2011-07-25

Abstract

A key of keyboard consists of a plurality of keycap guide seats, keycaps and conductive press caps, wherein a fastening tenon groove and a semicircular convex column are arranged on the inner sidewall of each keycap guide seat. Fixed column surfaces extend from four corners at the bottom edge of each keycap, and the centers of the keycaps are provided with circular convex columns which are connected in a crossed extending mode. Meanwhile, a reed is arranged between the fixed column surfaces on two sides; the bottom edge of a spring sheet is provided with a hook button, and the inner side of the spring sheet is provided with an oblique convex column. The upper edge of the conductive press cap is provided with a notch, and the arc concave surface of the conductive press cap is provided with a convex column. The key of keyboard makes the keycaps buckled on the keys move up and down more steadily by means of the semicircular convex column, and simultaneously makes the keycaps buckled in the fastening tenon grooves of the keycap guide seats by means of the reed hook buttons on two sides of the keycaps, so as to effectively prevent the conductive press caps from slipping through the circular convex columns in the center of the keycaps, and achieve the best instruction signals.

Description

Keyboard

Technical field

The utility model relates to a kind of keyboard.

Background technology

Flourish along with social industry and commerce, message industry, make computer be commonly used, and computer is used for the keyboard of input instruction and signal mainly is the keycap guide bracket that key panel is provided with similar rectangle, this keycap guide bracket wall within it is provided with upright guides, and is provided with the fastener of two symmetries on the interior sidewall surface of this upright guides.It is trapezoidal that button cap is, and is extended with the square key post in its bottom, be provided with the fixedly cylinder of relief formula at the Qi Sijiao place, and the centre is hollow form.Simultaneously, fixedly be provided with symmetrical reed in the middle of the cylinder in key post both sides, this reed has extended the convex fastener in its bottom side.Be interlocked with the fastener on the keycap guide bracket internal face by fastener and make button cap and keycap guide bracket fastening spring leaf bottom.Yet owing in the keycap guide bracket, only be provided with upright guides, make its can only with the relief formula of four jiaos of button cap bottoms fixedly cylinder contact, thereby the generation certain interval makes button cap instability when doing upper and lower motion, easily rocks.Simultaneously, the contact area of guide groove is bigger in square key post and the keycap guide bracket, has some setbacks thereby easily produce when friction causes button cap to do upper and lower motion.In addition, existing keyboard causes having only the conduction pressure cap bottom fixedly cylinder is conflicted owing to adopt the key post design of hollow, makes conduction pressure cap generation slippage easily, thereby can't correctly touch the firing point between printed circuit board (PCB).

Because problem such as above-mentioned, creator of the present utility model is based on being engaged in relevant industries experience for many years, and studies intensively with great concentration, draws the keyboard press button structure in the utility model eventually.

Summary of the invention

Keyboard press button structure in the utility model mainly is in order to solve the problem of the phenomenon that shakes when above-mentioned existing keyboard moves up and down by button cap in strong, simultaneously, also need solve the phenomenon that is directed at conduction pressure cap generation slippage in the said structure, thus the problem that causes correctly touching firing point between printed circuit board (PCB).

Keyboard in the utility model consists predominantly of several and is located at keycap guide bracket, the button cap on the key panel and the pressure cap that conducts electricity, wherein,

Described keycap guide bracket is similar to a rectangle guide groove, this rectangle guide groove is shaped on a convex shaped arc concaver on portion's two relative internal faces within it, and on other both sides internal face of this internal face, be provided with clip tenon trough, simultaneously, edge is provided with semicircle projection equidistantly around the guide groove internal face;

Described button cap is similar trapezoidal, extended fixedly cylinder for four jiaos at its root edge, be shaped on circular projection in the central, and link by the intersection mode of extending, simultaneously, fixedly be provided with reed between the cylinder in both sides, this shell fragment is provided with fastener at its root edge, and side is provided with oblique protruding the helping that connects in the button cap root edge within it;

Described conduction pressure cap is tapered horn-like, and the edge place is shaped on a recess thereon, and this conduction pressure cap also is shaped on a projection in its arc-shaped concave.

Keyboard in the utility model is owing to be shaped on the semicircle projection that is used to guide at keycap guide bracket wall periphery, make button cap can more firmly in wall, do upper and lower slippage, simultaneously, by means of circular projection in the button cap, thereby the conduction pressure cap of its root edge snapping of correcting more effectively, make the conduction pressure cap can not produce sliding phenomenon, reach the purpose of right instructions signal.

Keyboard in the utility model inboard of set reed in button cap is provided with oblique fin, to prevent phenomenon of rupture.

In addition, keyboard in the utility model is by being provided with circular projection in button cap, thereby the conduction pressure cap of contact lower edge effectively, and has a function of correcting conduction pressure cap, this circle projection contacts with printed circuit board (PCB) by means of the pressure of pressing keys cap, reaches best instruction signal.

Description of drawings

Elaborate below in conjunction with the preferred embodiment of accompanying drawing to keyboard in the utility model.

Fig. 1 is the perspective exploded view of press-key structure in the utility model;

Fig. 2 is the elevational schematic view of button cap in the utility model;

Fig. 3 is the schematic top plan view of keycap guide bracket in the utility model;

Fig. 4 is the cross-sectional schematic of press-key structure in the utility model;

Fig. 5 is the operation chart of press-key structure in the utility model;

Fig. 6 is the three-dimensional combination figure of press-key structure in the utility model.

As shown in Figure 1 to Figure 3, the keyboard in the utility model mainly contains a keycap guide bracket 21, and this keycap guide bracket 21 is arranged on the key panel 20 with some arrangement modes.This keycap guide bracket 21 is similar to a rectangle guide groove, and on the relative internal face of this rectangle guide groove two, all be shaped on a convex shaped arc concaver 22, and on being shaped on the in addition both sides inwall of convex shaped arc concaver 22 inwalls, this is provided with clip tenon trough 23, utilize this clip tenon trough 23 and the fastening of button cap 10 upper trips to fix button cap 10, and prevent that button cap 10 from coming off.In addition, the equidistant semicircle projection 24 (as shown in Figure 3) that is provided with of edge around the guide groove internal face, 10 4 jiaos of L-shaped fixedly cylinders 11 of button cap contact mutually behind this semicircle projection 24 and the snapping, making fixedly, cylinder 11 leans on semicircle projection 24, thereby make button cap 10 when snapping, leave certain clearance, phenomenon such as be unlikely to produce tension, rock, and then the key post can more firmly be moved up and down in guide groove.

Button cap 10 is similar trapezoidal, extends L-shaped fixedly cylinder 11 at its bottom four jiaos, be shaped on a circular projection 12 in the central, and fixedly cylinder 11 and central, circular projection 12 links together in the intersection mode of extending.Fixedly be provided with reed 13 between the cylinder 11 in both sides, this reed 13 is shaped on convex fastener 14 at its root edge, and side is provided with fin 15 within it, utilize this fin 15 that the bottom side of reed 13 with trapezoidal keycap 10 is connected, make reed 13 when fastener, have the elastic space of pressing, and can joint generation phenomenon of rupture, as shown in Figure 2.

Conduction pressure cap 30 is made by silica gel matter material, and is similar to the horn-like of taper.This conduction pressure cap 30 edge place thereon is provided with a recess 31, this recess 31 is used for the circular projection 12 of button cap 10 central authorities inconsistent, conduction pressure cap 30 can be fixed on effectively on the position between printed circuit board (PCB), also possesses the correcting function after utilizing this voltage cap 30 in addition, do not see you again to produce in the conventional keys cap and directly conflict and the sliding phenomenon of generation, and then cause the interpretation mistake of input signal by the key post.Conduction pressure cap 30 is provided with a projection 32 in its arc-shaped concave, by means of this projection 32 can be effectively, contact print circuit board correctly, to reach rapider, more accurate signal input.

As shown in Figure 4, on key panel 20, be provided with several equidistant keycap guide brackets of arranging 21, button cap 10 is buckled on the keycap guide bracket 21, make semicircle projection 24 that is located on the keycap guide bracket 21 rectangle guide groove inwalls and the L shaped fixedly cylinder 11 of being located at 10 4 jiaos of button caps contact mutually, simultaneously, the fastener 14 on the button cap 10 both sides reeds 13 snaps onto in the clip tenon trough 23 of keycap guide bracket 21 internal faces.Utilize the inboard set 15 pairs of fasteners 14 of oblique fin of reed 13 to have necessarily, fastener 14 is buckled in the clip tenon trough 23 of keycap guide bracket 21 by compression elasticity, and can be at joint generation phenomenon of rupture.Then place a conduction pressure cap 30,, make conduction pressure cap 30 have more polarization, and sliding phenomenon can not take place by means of the mutual collocation of the circular projection on the button cap 12 with conduction pressure cap 30 upper notch 31 at the root edge place of button cap 10 central, circular projections 12.

As shown in Figure 5, the operating process of keyboard is in the utility model: at first button cap 10 is snapped onto in regular turn on the keycap guide bracket 21 of key panel 20, make the keycap root edge be touched the characteristic of pushing that produces as spring because of conducting electricity the item of pressure cap 30, by make the downward pressing of conduction pressure cap of bottom snapping by the button cap that touches the top, and make the projection 32 of conduction pressure cap arc-shaped concave inner edge touch printed circuit board (PCB), and then reach correct instruction, signal input.

In sum, there is keyboard by means of the semicircle projection that in the keycap guide bracket, is provided with button cap can firmly to be moved up and down behind snapping in the utility model by structure, in addition, owing in button cap, be provided with circular projection, thereby correcting root edge conduction pressure cap makes it can not produce sliding phenomenon, so can be more effective, correctly input instruction and signal.

In addition; above-mentionedly only the preferable enforcement in the utility model is added through explanation; but can not be as limiting protection range of the present utility model; every equivalence of doing according to conception of the present utility model changes; when the function that it produced does not exceed spiritual that specification and accompanying drawing contain yet; all should be in scope of the present utility model, explanation hereby.

Claims

1. a keyboard consists predominantly of several and is located at keycap guide bracket, the button cap on the key panel and the pressure cap that conducts electricity, and it is characterized in that: