SU635484A1 - Key manufacturing method - Google Patents

Claims (2)

The goal is achieved by the fact that in the method of manufacturing a key and by pressing a plastic substrate with symbols in a different color, the plastic case of the key, the keystone of the same color is pressed on the narrow side face of the substrate, made in the form of a plate, which is inserted into the keyway slot , close the mold and press the case of the key of a different color, open the mold and for the key with the backlight cut the substrate in, inside the keys. In addition, the method differs in that. that for a key without a backlight, the substrate is not removed. Trapezoidal section is necessary for secure fastening of symbols in the body of the WORD: Ш, и. When Pr & osodapin characters on a narrow side face of the substrate; kp, vpolievnoy in the form of a plate, the organisation | Qi si: moles of a tarpaulin are loosened; characters. In addition, the wafer substrate is easily cut off after pressing a key, which is necessary when highlighting the keys from the inside. The durability and wear resistance of the keys is achieved by pressing in three-dimensional characters into the key case, and the smoothness of the working surface of the key in that the case of the key AND symbols are made in. -en1 from the same material and the degree of their wear is the same, besides, in the process of pressing the case of the key and the process, the surface of the key is technologically combined. The possibility of key illumination is provided by removing the substrate, and the constructiveness of the simplicity of Class B: the headlines and the technological simplicity of its method of manufacture make it possible to completely mechanize and automate the process of manufacturing keys with symbols. FIG. Figure 1 shows a mold in which symbols are pressed on a narrow lateral face of the substrate, made in the form of a plate, a section; .na flg 2 - replicated. С: И, М1Вол on the substrate; in fig. 3 — stress mold for pressing the keys, a slit; in fig. 4 - key with pressed symbols, cut. An example of the proposed keystroke production can be the manufacture of a key with illumination for an instrument touch panel. In the mold / trapezoidal chelts - SYMBOLS 2 of the same color press / press a narrow side face of the substrate 3, made in the form of a plate. The mold / has interchangeable inserts 4, iia of which the required cadxi or symbols are engraved 2. In this irimer, the cross-section of the substrate is 0.8x3 mm, the height of the symbols on the substrate is 0.8 mm, their overall dimensions are 3X2.5 mm; the sizes of the bases of the trapezoid are 0.5 and 0.8 mm; substrate material with symbols - black high-impact polystyrene. Then the base line: 3 with symbols 2 is inserted into the groove 5, etc., p: we have 6 keys. Close the mold 6 and press the case 7 of the key from high impact polystyrene of another, for example red, color. Next, the mold 6 is opened and for the key with the backlight, the undercut | Ku 8 inside the key is cut using a multi-position tool with keys for the keys on the cutter. When manufacturing keys without illumination, the substrate is not removed. The use of the proposed method of manufacturing the keys provides, in comparison with existing methods using the following methods, mushes; vozmozhno.sti pod-, light keys with pressed-in characters; the manufacture of durable and wear-resistant keys with backlight, since the keys have pressed-in plastic symbols; the ability to make keys with symbols, with backlight and with a smooth working surface; improvement in plastic filling of closed contours of symbols when pressing a key, since there is no need to perforate the substrate; eliminating the operations of engraving and filling characters with dye, which increases productivity and allows for complete mechanization and automation of the manufacturing process of keys with symbols and backlight; expansion of design possibilities in the development of keyboard panels, consoles, boards and keyboards; simplify the 1I production. klaesh without illumination, as the mold for pressing the substrate with symbols is simplified and the filling of closed contours of symbols with plastic is improved. Symbols, de-. formed in the mold keys, can take the desired concave surface; the versatility of the proposed substrate with symbols in the form of a plate, since it can be used both for producing illuminated keys and for non-illuminated keys. The overall economic effect of the mass production of keys can be at least 50,000 rubles. in year. Claim 1. Key manufacturing method by pressing in a plastic substrate with symbols in a different color plastic key case, characterized in that, in order to increase the service life and increase the wear resistance of the keys, trapezoidal section, symbols of the same color are pressed onto the narrow side face of the substrate, made in the form of a plate, which is inserted into the slot of the key mold, close the mold and press the case of a different color open the mold and for the key with the backlight cut off the substrate of the key. 2. A method according to claim 1, characterized in that for a key without a backlight, the substrate is not removed. Sources of information accepted in Q: Nima: N: sie at examination: 1.Patent of France No. 2257951, cl. G 06 S 7/02. 1975. 2. The control panel AP 7101 of the Kazan plant for writing devices. Hick CPU g L