CN2100686U - Improvement of keyswitch - Google Patents

Abstract

The utility model relates to an improvement for keyswitches. Three cover ribs which are arranged on an upper cover body can be formed into cover grooves for elastic pieces to be inlaid and positioned, and an upper cover hole is arranged at the lower part. Projections among a drive elastic piece, a driven elastic piece and a touching elastic piece can be contacted to form a conduction by downwardly pressing a key post. The lower cover body is provided with two sets of pin holes, so that pins can be assembled without selection when the pins pass through, and accordingly, automatic production can be realized, and output can be improved. Key sound can be outputted from the upper cover hole, and key can be carried out.

Description

Improvement of keyswitch

The utility model relates to a kind of improvement of key switch, more particularly be meant and a kind ofly at upper outlet body three cover ribs be set and set the location to form cover groove ammunition feed sheet, have below reaching and cover the hole on one, and by press down initiatively shell fragment via the key post, from projection between spring plate and shake-up shell fragment, make its contact form conducting, and lower cover is provided with two groups of pin holes, pass through Shi Buxu through sorting and assembling with convenient pin, improve output for automated production, and button sound can be from the output of last cover hole to implement button.

In the hardware of computer, except making every effort to reach the high treatment efficiency and the big capacity of main frame, or ask on the other hand outside its " light, thin, short, little ", undeniable ground, the cooperation of ancillary equipment also can not be ignored.

Promptly be equipped with standard, be input information, keyboard is indispensable.And,, have mechanical type, diaphragm type and conductive rubber formula according to the structure of button according to present common keyboard.Wherein, comparatively general with mechanical type again.

Reason is keyboard for the operator, and the clear and melodious sound of sensation between finger and impact is extremely important, and this is owing to traditional habit, so the researcher also keeps on improving in this direction.

In addition, the speed of the quality of conduction and processing also is the big factors of these button success or failure of decision.Because present button all adopts artificial assembling, its output is limited, and on conduction, often causes bad because of member is complicated.

In recent years, people have a finding to the improvement of button also more, and it is limited to size and specification, are difficult in shape do than quantum jump, so all on the shell fragment of contact, improve, the inside contact flat spring that is about to know is improved, though can reach basic function, its a fly in the ointment is that acoustics is not good, and shell fragment causes tired and loose contact through knocking for a long time, simultaneously, because it has directivity, produce so be difficult to automation ground.

The purpose of this utility model just is to provide a kind of Improved key switch that has overcome above-mentioned shortcoming.

For further disclosing concrete technology contents of the present utility model, at first see also accompanying drawing, wherein,

Fig. 1 is a three-dimensional exploded view of the present utility model,

Fig. 2 is a combination generalized section of the present utility model.

As shown in the figure, basically, the utility model is pressed pressing spring 3, one side shell fragments 4, by a upper outlet body 1, one key post 2, and is combined from spring plate 5, one active shell fragments, 6, one shake-up shell fragments 7 and a lower cover 8.

Wherein, key post 2, press pressing spring 3, side shell fragment 4 all be know and followed for a long time, precedingly address, be limited to specification, can't make too big change really.

Upper outlet body 1 is the open semiclosed housing of squarish of a side, for making from spring plate 5, shell fragment 6 and touch shell fragment 7 location initiatively, so extend three covers of projection rib 31 in the two side, make reach therebetween and wall between form three cover grooves 32, embed for aforementioned each shell fragment and fix.In addition, below the opposite side that is different from the side of covering rib 31, then cutting makes its upward cover hole 33 that forms a breach, is spread out of so that form the inner fastening switching sound in back.

From the sheet-like article that spring plate 5 is made for conducting metal, one end below has the extension of a driven pin 51, so that it can pass through the pin hole 81 of lower cover 8.Simultaneously, in the top center from spring plate 5, form a driven projection 52 through punching press, its purpose is for forming the switching state that can contact with active shell fragment 6.

Please consult accompanying drawing again, initiatively shell fragment 6 also is the sheet-like article that a conducting metal is made, and its below also has an initiatively extension of pin 61, so that pass through the pin hole 81 of lower cover 8 belows and then be connected in circuit.And part up, then form the active bearing band 62 that inside is a horizontal s shape through punching press, and its central authorities are big slightly easier to contact so that can form with aforesaid driven projection 52, simultaneously, for strengthening its stress, so peripheral punching press is formed ribs, this is the common technology of general five metals processing, be not the utility model emphasis, so do not give unnecessary details.

Touching shell fragment 7 is a framework, its from the top oblique turnover extend a Spring sheet clip 71, and with the separated attitude of the frame of below, and central authorities form the shake-up projection 72 of a squarish and evagination.

The profile of lower cover 8 is common, and corresponding to upper outlet body 1, so that it can fasten assembling each other, because it is the appearance of symmetry, so below following cover wall on also be symmetrical arranged two every group of two groups of jack 81(, totally four), so that for driven shell foot 51 and initiatively shell foot 61 selectivity pass through.

Please consult Fig. 2 again, the utility model is when forming, and its section promptly as shown in the figure, and when pressing key post 2, then impel, and spread to and touch shell fragment 7 toward bottom offset, this shake-up shell fragment 7 makes its outer bullet, and hold and squeeze initiatively shell fragment 6 to touch projection 72, and make its also outer bullet, and then the driven projection 52(that active bearing band 62 on the active shell fragment 6 is touched from the spring plate 5 is shown in dotted line), and the formation path, after external force disappears, 2 resiliences of key post, each shell fragment and guide card return back to original position again.

So, via enforcement of the present utility model, can obtain following effect:

(1) can drop into automated production, because lower cover of the present utility model has two groups of pin holes, its when assembling because of symmetry and non-directional, so must not pass through sorting of any photoelectricity, can elasticity select arbitrary group of pin hole, exempt that the palpus of knowing should sort in advance and inconvenient phenomenon that can't the automation assembling.

(2) conduction stay in grade, because the utility model interface shell fragment is the active conduction band of horizontal s shape, it still is connected on the active shell fragment, thus do not have the situation generation of displacement, elastic fatigue, and, strengthen the stability of switching because of locating accurately.

(3) two-part acoustics, whether the clear and melodious sound when making button can make operator's feel and acoustically reach bigger effect, and it be practicable to be easy to differentiate button from the output of the cover hole of last cover.

(4) assembling is fast with combination, reduces the fraction defective that produces because of manually, because the utility model can drop into automated production, must be as usually with manual work, and so product is fast, quality is homogeneous also.

That the utility model disclosed is a kind of of preferred embodiment, and coming from concrete technological thought of the present utility model is change or the modification of being familiar with all parts that the people was easy to know by inference of this technology also, does not all break away from the scope of the utility model appended claims.

Claims (2)

1, a kind of improvement of key switch, this key switch comprises a upper outlet body, a key post, one presses pressing spring, a side shell fragment, one from spring plate, an active shell fragment, one touches a shell fragment and a lower cover, it is characterized in that:

The sidewall of upper outlet body extends three covers of projection rib, and make reach therebetween and wall between form three cover grooves, for setting from spring plate, active shell fragment and shake-up shell fragment, and its below one side cutting forms on one covers the hole, the extension that has a pin from the spring plate below, top center forms a driven projection through punching press, initiatively shell fragment also has an initiatively extension of pin in addition, its top then has initiatively bearing band of a stamping forming horizontal s type, its position, central authorities combination back is corresponding to driven projection, touch the Spring sheet clip that shell fragment has the oblique extension of a turnover, its central authorities form the shake-up projection of the evagination of squarish, lower cover then has two groups of pin holes, and Dutch changes stable so that supply the elasticity embedding of active pin and driven pin to pass through, the effect of voice output and automation assembling.

2, the improvement of key switch as claimed in claim 1 is characterized in that: wherein initiatively bearing band can strike out a projection.

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