CN2198659Y - Key device capable of enlarging letter pattern - Google Patents

Abstract

The utility model relates to a key device capable of enlarging letter patterns. The rubber key body of the utility model is made of transparent plastics; the upper surface is convex with arc shape and the lower surface is plane, which is like a convex lens; transparent letter part or pattern part is arranged on the plane part of the key body; the letter part or pattern part is processed by shading; the plane is provided with media material which is similar to the polarity of a rubber body; the key body is combined with the rubber body by a hot pressing mode; when the key body is watched from top, the letters or the patterns can be amplified and are easy for people who press to identify to avoid of mistakes of press; when the utility model is used, the key can be more accurately pressed.

Description

Key device capable of enlarging letter pattern

The utility model relates to a kind of key device of scalable character pattern, and You Zhike amplifies literal on the button or pattern, so that still be convenient to the key device that the user accurately pushes after compactization of product.

Along with the development of electronics technology, various electrical equipment, communication product are asked the city in succession, for example radio telephone, computer, sound equipment etc., and big characteristics of electronic product are unavoidably to have plurality of keys to push for the user and control; Early stage electronic product volume is bigger, button provided thereon can design greatly and be beneficial to finger presses, its button D is one-body molded form (as shown in Figure 6), and be provided with conductive rubber or salient point in its lower end and be contacted with contact on the circuit board and outgoing signal by conductive rubber or salient point when pushing, yet in electronic technology flourishing day by day today, compact, the multi-functional design trend that becomes, be easy to carry in order to make the electronic product volume-diminished, each tame manufacturer is devoted to develop mini electronic product invariably, hand held mobile phone for example, notebook computer etc., yet after small product size is dwindled, button provided thereon also must dwindle thereupon so that the button on keyboard distance is too near, when pushing a key together with the time false touch other button, the mark or character pattern too carefully is difficult for distinguishing, and make mistakes easily in using, therefore how to take the compact operating function accurately that can obtain again into account, become an industry difficult problem.

The purpose of this utility model is to provide a kind of key device of scalable character pattern.

The purpose of this utility model is to realize like this, a kind of key device of scalable word pattern promptly is provided, make with transparent plastic material, upper surface is the arcuation projection and lower surface is the plane, similar convex lens, plane are provided with the literal or the pattern of light-permeable, and give shading treatment for the part beyond literal or the pattern, this literal or pattern can be amplified when watching button and be beneficial to and push by the top, avoid mistake by.

The utility model provides a kind of key device of scalable word pattern, key body is coated with color ink and color development, photic zone with respect to the planar section of cambered surface, and rubber bodies adds the special formulation vulcanizing agent and makes rubber bodies and key body have close polarity with liquid rubber, so that combine after being subjected to hot pressing between key body plane and the rubber bodies.

The advantage of the utility model key device is, when the key physical efficiency satisfies short and small frivolous condition, font or pattern can be amplified again, is beneficial to accurately and pushes, and raises the efficiency, prevent wrong by mistake by, improve and push efficient.

Below in conjunction with accompanying drawing, embodiment of the present utility model is described, wherein:

Fig. 1 is the utility model key body combination form section plan;

Fig. 2 is the whole view of apparatus of the utility model key body;

Fig. 3 is the utility model key body stereogram;

Fig. 4 is for making the manufacturing flow chart of literal or pattern on the utility model key body plane;

Fig. 5 is used for the stereogram of mobile phone for the utility model key body;

Fig. 6 is the section plan of existing technology rubber key.

The figure number explanation:

(1) key body (20) conductive rubber or salient point

(10) cambered surface (3) housing

(11) plane (31) inward flange

(12) literal (A) resistance gloss oil China ink coating

(13) outward flange (B) color development, printing opacity character pattern coating

(2) rubber bodies (C) media coating

(D) rubber key of prior art

As shown in Figure 1, the key device of the scalable word pattern that the utility model provides is mainly used in the electronic product keyboard of reduced volume, still can be convenient to operator presses when key arrangement is squeezed; The utility model key device comprises key body 1 and rubber bodies 2, key body 1 is in conjunction with being fixed in rubber bodies 2 upper ends, the rubber bodies lower end is provided with conductive rubber or salient point 20, contact with the circuit board contact by conductive rubber or salient point 20 when depressing key body 1 and conduct electricity, wherein, key body 1 makes with transparent plastic material that upper surface is cambered surface 10 and lower surface is plane 11, similar convex lens, this plane 11 is provided with the literal 12 or the pattern (as shown in Figures 3 and 4) of light-permeable, and the part of no literal or pattern given shading treatment, by watching key body 1 literal 12 or pattern can be amplified and be beneficial to and push (as shown in Figure 2) in the top, the plane periphery of this key body 1 forms outward flange 13, the hole place periphery that housing desires to set key body 1 is provided with inward flange 31, when key body 1 is matched with housing 3 holes, to prevent key body 1 side light leakage, and can avoid that the user takes with hand after button is depressed, in addition, its top forms cambered surface 10 comparatively comfortable sense of touch also is provided, the user is operation push-button accurately, have texture and practicality preferably as a whole, the literal 12 on key body 1 plane 11 or the manufacture of pattern, can adopt photoetching technique to make, its flow process as shown in Figure 4, coating hinders photosensitiveness printing ink on this plane 11 earlier, different key can be different colours, carry out shading treatment (A), with laser-engraving technique the resistance photosensitiveness printing ink of literal 12 or pattern part is partly removed again, make literal 12 or pattern part energy printing opacity (B), (or when the coating of resistance gloss oil China ink, vacate literal or pattern part), on this light resistance ink layer, apply color development again, transparent coatings (different key can be different colours) (C), the literal 12 or the pattern of its plane 11 parts can be amplified when seeing by last direction key body 1, come into plain view, be convenient to operation and push.

Have again, the key device of prior art is that the button with plastics combines with elastic caoutchouc or is assembled together, but because of plastics and rubber polarity inequality, (melting point of engineering plastics of generally making button is about 120 ℃, and the rubber melting point is about 170～180 ℃), so that must be in conjunction with fixedly the time with other sticker (as instant adhesive, seccotine) places and reach bonding purpose therebetween, yet in use for some time, this sticker may produce qualitative change and adhesiveness is reduced, the property condition that button comes off takes place, therefore, the utility model is with key body 1, rubber bodies 2 combinations, this rubber bodies 2 is added that with liquid rubber the vulcanizing agent of prescription improvement is mixed and made into, its melting point is reduced between 110～120 ℃, cooperate printing ink and the pigment self character that is coated on key body 1 plane 12 again, make the polarity between key body 1 plane 12 and the rubber bodies 2 close, plane 12 with key body 1 during manufacturing fits in above the rubber bodies 2 and hot pressing, it is combined firmly, do not come off for a long time when normally using.

Claims (3)

1, a kind of key device of scalable word pattern, comprise key body and rubber bodies, key body is fixed in the rubber bodies upper end, the rubber bodies lower end is provided with conductive rubber or salient point in addition, contact with circuit board by conductive rubber or salient point when pressing down button and function signal is provided, it is characterized in that: this key body is made lens-shaped with transparent plastic material, the curved projection of its upper surface, and lower surface is planar shaped; This plane is provided with the literal or the pattern of light-permeable, is lightproof part beyond literal or pattern.

2, the key device of scalable word pattern according to claim 1 is characterized in that this button is to make with engineering plastics, and this rubber bodies is to add vulcanizing agent with liquid rubber to be mixed and made into; The planar section of key body contacts with rubber bodies, and both hot pressing form an integral body.

3, the key device of scalable word pattern according to claim 1 is characterized in that the literal on this key body plane or pattern are the transparent part that photoetching is made, and be coated with painted, transparent coatings on this plane.

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