CN2504746Y

CN2504746Y - Low noise press button

Info

Publication number: CN2504746Y
Application number: CN 01234724
Authority: CN
Inventors: 余清敬
Original assignee: Behavior Technical Computer Corp
Current assignee: Behavior Technical Computer Corp
Priority date: 2001-10-24
Filing date: 2001-10-24
Publication date: 2002-08-07
Anticipated expiration: 2011-10-24

Abstract

A press key with low noises which is used for a computer keyboard comprises each rectangular guide tube on the base plate of the keyboard and a key cap with a central axis is arranged at the upper end of the guide tube. The central axis can make a expanding-contracting movement in the axle center of the guide tube to touch and press the bottom elastic body to turn on the switch contact; the key cap comprises bumps at the two sides of the central axis and the guide tube comprises slide grooves at the two sides of the axle center of the guide tube. The two bumps can be respectively inserted into the two slide grooves, so the key cap is fast connected with the guide tube and the expanding-contracting movement of the press key is more stable, greatly reducing the noises of the press keys.

Description

Low noise push-button

Technical field

The relevant a kind of low noise keyboard of the utility model, specifically, relevant a kind of low noise push-button that is used for computer keyboard.

Background technology

Traditional computer keyboard key is owing to be subjected to structural restriction, when key post and the contact-making surface of leading letter too hour, i.e. generation keycap inclination or wild effect such as card key is arranged easily operation in, thereby must increase the stability of keycap by adding large contact surface; In addition because the relation of vertical stretching motion is arranged between key post and the guide, the structure that many computer keyboard keys also all are designed to cut the shape connecting rod supports keycap to reduce flexible stroke, especially the keyboard of hand-held computer is the most common, like this, not only trouble is bothersome in the assembling, and because of the movable component of cutting the shape connecting rod is many, keycap is difficult to by strong fix, unstable shaking phenomenon easily takes place, and the noise in the practical operation is also comparatively serious.

In addition, have nothing in common with each other because of different computer operation person's operation keyboard customs, finger presses is exerted oneself and is also had nothing in common with each other, and also so easily causes the problem of aforesaid operations noise.

Summary of the invention

Main purpose of the present utility model provides a kind of low noise push-button that stability that button moves up and down and assembling are simplified of promoting.

For achieving the above object, low noise push-button of the present utility model, be included in each the rectangle guiding cylinder position on the keyboard substrate, end is provided with a keycap with newel thereon, described newel can be made stretching motion in the axle center of leading letter, in order to press bottom elastomeric actuating switch contact, when pressing by the action end, elastomer is elected newel upwards makes keycap reset, be characterized in: described keycap is included in keycap root edge newel both sides and is respectively equipped with vertically downward flat projection, be provided with the clip slot of openend broad in the middle of the base of each projection, and make each projection both sides have elasticity to middle stretching motion, the projection both sides are provided with hypotenuse wide at the top and narrow at the bottom, make the top of both sides hypotenuse form the monosymmetric convex cone of each projection; The both sides that described guide is included in the guide axle center are respectively equipped with the flat chute, and each chute is corresponding to above-mentioned projection, and each chute openend is provided with hypotenuse wide outside and narrow inside, with corresponding to described projection both sides hypotenuse; Each projection can be inserted in the corresponding chute, only be butted on the bottom of hypotenuse in the chute by the convex cone of projection both sides, the keycap location is no longer deviate from, the newel of keycap through the guide axle center by newel bottom contact resilient body, and the surface of elastomer nose is embedded in the axis hole of newel, so that keycap is incorporated into guide fast.

Understand the purpose of this utility model, characteristics and advantage for clearer, preferred embodiment of the present utility model is elaborated below in conjunction with accompanying drawing.

Description of drawings

Fig. 1 is the stereogram of the utility model one embodiment;

Fig. 2 is the button exploded view of the utility model one embodiment, among the figure with the keycap biopsy cavity marker devices;

Fig. 3 is the section cut away view of the utility model one embodiment in guide chute position;

Fig. 4 is a combination of components cutaway view among Fig. 3;

Fig. 5 is the section cut away view of the guide axis part of the utility model one embodiment;

Fig. 6 is a combination of components cutaway view among Fig. 5.

Embodiment

As shown in figs. 1 and 2, low noise push-button 10 integral body of the present utility model comprise the keycap with newel 14 12 that is arranged on each upper end, rectangle guiding cylinder 11 positions of keyboard substrate, described newel 14 can be made stretching motion in the axle center 15 of guide 11, come the actuating switch contact in order to press bottom elastomeric 13.

As shown in Figure 2, the both sides that described keycap 12 is included in keycap root edge newel 14 are respectively equipped with flat projection 16 vertically downward, be provided with the clip slot 17 of openend broad in the middle of the base of each projection 16, and make each projection 16 both sides have elasticity to middle stretching motion; Projection 16 both sides are provided with hypotenuse wide at the top and narrow at the bottom 18, make the top of both sides hypotenuse 18 form each projection 16 monosymmetric convex cone 19.

And for example shown in Figure 2, the both sides that described guide 11 is included in guide axle center 15 are respectively equipped with flat chute 20, and each chute 20 is corresponding to above-mentioned projection 16, and described each chute 20 openend are provided with hypotenuse wide outside and narrow inside 21, corresponding to described projection 16 both sides hypotenuses 18.

Combination keycap 12 is during to guide 11, utilize two projections 16 can be inserted in fast in the two corresponding chutes 20, as shown in Figure 3, promptly only be butted on the bottom of hypotenuse 21 in the chute 20 after the insertion by the convex cone 19 of projection 16 both sides, even no longer deviate from keycap 12 location, as shown in Figure 4, simultaneously, the newel 14 of keycap 12 through guide axle center 15 by newel 14 bottom contact resilient bodies 13, and elastomer 13 surperficial noses 23 are embedded in the axis hole 24 of newel 14, as illustrated in Figures 5 and 6, even keycap 12 is incorporated into guide 11 fast, to finish the assembling of button 10.

When finger presses down keycap 12, can press elastomer 13 with the conducting key switch, maybe when pressing, elect newel 14 upwards, keycap 12 is resetted by elastomer 13 by action knot card by newel 14.

The utility model without any a movable Pivot component, so keycap 12 is pressed when making stretching motion, can not cause the touching noise of movable part between keycap 12 and guide 11, can significantly reduce noisy property in practical operation.

In addition, because of the utility model utilizes projection 16 and chute 20 as paraposition components, overall construction design is special and simple and easy, not only it is more quick in assembling, and unstable shaking phenomenon accurately and not can take place in the location, thereby has significantly promoted the useful life of button, and reduces manufacturing cost.

Claims

1. low noise push-button, be included in each the rectangle guiding cylinder position on the keyboard substrate, end is provided with a keycap with newel thereon, described newel can be made stretching motion in the axle center of leading letter, in order to press bottom elastomeric actuating switch contact, when pressing by the action end, elastomer is elected newel upwards makes keycap reset, and it is characterized in that:

Described keycap is included in keycap root edge newel both sides and is respectively equipped with vertically downward flat projection, be provided with the clip slot of openend broad in the middle of the base of each projection, and make each projection both sides have elasticity to middle stretching motion, the projection both sides are provided with hypotenuse wide at the top and narrow at the bottom, make the top of both sides hypotenuse form the monosymmetric convex cone of each projection;

The both sides that described guide is included in the guide axle center are respectively equipped with the flat chute, and each chute is corresponding to above-mentioned projection, and each chute openend is provided with hypotenuse wide outside and narrow inside, with corresponding to described projection both sides hypotenuse; Each projection can be inserted in the corresponding chute, only be butted on the bottom of hypotenuse in the chute by the convex cone of projection both sides, the keycap location is no longer deviate from, the newel of keycap through the guide axle center by newel bottom contact resilient body, and the surface of elastomer nose is embedded in the axis hole of newel, so that keycap is incorporated into guide fast.