CN87213680U

CN87213680U - Fast computer key-board for accounting and statistics

Info

Publication number: CN87213680U
Application number: CN 87213680
Authority: CN
Inventors: 谢怀杰
Original assignee: Individual
Current assignee: Individual
Priority date: 1987-09-22
Filing date: 1987-09-22
Publication date: 1988-04-27

Abstract

The utility model discloses a fast keyboard for electronic calculation for statistics and accounting. The keyboard of an electronic calculation device of the utility model can make general plus-minus operations be inputted quickly and effectively and does not affect other operation habits. The utility model is characterized in that the keyboard is provided with a keypad which is arranged fairly approximate to the arrangement of an abacus according to the digital rule of an abacus, which is convenient for the fingers of the right hand to operate continuously and quickly. A momentary input circuit is introduced by an input circuit, and interval frames are arranged between keys, etc. Compared with the existing keyboards of electronic calculation devices, the utility model which has the advantages of high versatility and low error ratio is especially suitable for works such as statistics and accounting which have large numbers of plus-minus operations.

Description

Fast computer key-board for accounting and statistics

The utility model belongs to a kind of keyboard switch of computing electronics, particularly is suitable for adding up, accountancy is used and can be made the general plus and minus calculation keyboard of input fast.

The keyboard of the present computing electronics that generally uses, the quick input of its structure and the equal uncomfortable cooperation plus and minus calculation of row's key mode, so the arithmetic speed of plus-minus is also slower than abacus, this causes the computing electronics incompatibility to resemble statistics, this needs of accounting are done the work use of a large amount of plus and minus calculations, so the accountancy of uniting at present uses abacus also quite general.Someone makes the fast characteristics of other computing and combines for abacus being made the fast and computing electronics of plus and minus calculation, so directly abacus and electronic calculator are gathered together, stepping on " electrical abacus " as " Guangdong science and technology newspaper " second edition on June 10th, 1987 of Chinese Guangdong science and technology newspaper office publication is, this is with using abacus and electronic calculator similar respectively, convenience is little, there is the people that the button above the keyboard of electronic calculator is changed into the pearl form of dialling resemble the abacus again, and the digital rule of pressing abacus is done approximate the arrangement, as Chinese patent application be for No. 86204554, keyboard is replaced falling as the lot of advantages of the ripe input structure of computing electronics is also corresponding like this, and this will influence the use habit of people to computing electronics.

The purpose of this utility model provides a kind of the general keyboard of computing electronics, press the digital rule of abacus and do approximate the arrangement, and from the quick keyboard of the computing electronics of input of textural effective realization plus and minus calculation, it makes computing electronics be suitable for system fully, accountancy is used, and does not influence the use habit of people to computing electronics again.

The utility model is achieved in that has the above keyboard of whenever perpendicular 5 buttons of row more than 4 perpendicular row, be characterised in that 1 perpendicular row is that numerical key 0～4 is done order arrangement continuously from top to bottom, its right neighbour the 1st erects row numerical key 5～9 is done the continuous arrangement of order from top to bottom, its the right adjacent the 2nd perpendicular row has " " number and "=" number key, and its left side the adjacent the 1st perpendicular row has "+" number and "-" number key.Can be used as 0 key, 5 keys with the interval between 1 key, 6 keys like this is abacus crossbeams, so the arrangement mode of numerical key is quite near the digital position of abacus, be suitable for resembling the operation abacus and use right hand one-handed performance, "+" number and "-" number key can be operated by hand thumb, "=" number and " " number key can be operated by right hand little finger of toe, such memory for digits and computing custom and operation posture are with using abacus consistent, be convenient to the operation fast continuously of right hand several fingers, can reach the quick input of plus and minus calculation effectively.

For such scheme, when finger really promptly jumps on keyboard when pressing, just exist after a key is pressed, not reset and just will press the problem of second key, like this for the input circuit of existing computing electronics, may cause and calculate chaotic or import invalid and make mistakes, so the utility model can in the input circuit of each key, introduce one moment input circuit, in order to press when a key, after its input effectively, do not rely on the just input circuit of automatic cutout at once that resets of key, just can press input at key preceding second key that reset, its input is not interfered with the input of first key.

For such scheme, the rate of pushing the wrong increases for fear of being accelerated by arithmetic speed, and the utility model can adopt following measure, and the one, can between key and key, interval box be set, the height of projection of interval box and key be with high, also presses together with adjacent key when avoiding by next key; The 2nd, can all be marked in the key face left side to the digital symbol of key, and can make the structure that is tilted to the left to the place that the key face left side indicates digital symbol, with so that during the finger button eyes still can see clearly and mark digital symbol on the key; The 3rd, a charactron can be set on the left side next door of each key, just show the digital symbol of this key in order to the charactron by it when a key import, with raising operator's supervision effect.

The utility model also can be according to concrete needs, outside the above-mentioned suitable keypad of adding and subtracting quick computing other the number or the key of symbol are set, to enlarge the functions of use and the versatility of keyboard.

The utility model is compared with the keyboard of existing computing electronics, can be suitable for especially resembling the work use that statistics, accounting have a large amount of plus and minus calculations like this, and highly versatile, error rate is low.

Below in conjunction with accompanying drawing the utility model is done to describe more specifically.

Fig. 1 is the floor map of a kind of scheme of the utility model.

Fig. 2 be can for the arbitrary key of Fig. 1 input circuit adopted moment input circuit a kind of scheme.

With reference to Fig. 1, this is a kind of plain edition electronic calculator keyboard, 5 whenever perpendicular 5 keys of row of perpendicular row are arranged above, the centre has 1 perpendicular row that numerical key 0～4 is made series arrangement from top to bottom, its the right the adjacent the 1st perpendicular row is done series arrangement from top to bottom to numerical key 5～9, its the right adjacent the 2nd perpendicular row has "=" number and " " number key, its left side the adjacent the 1st perpendicular row has "+" number and "-" number key, "+" number key is more greatly for for the purpose of convenient the use because it uses frequent, except that this is fit to do to also have other function key the keypad of the quick computing of plus-minus.Be provided with interval box a between key and the key, the height of projection of interval box a and key are with high; The digital symbol of key all is marked in the key face left side, and the key face left side regional b slightly inclined left that indicates digital symbol; All there is a charactron d on next door, each key left side, and charactron just shows the digital symbol of this key when key is imported, and monitors the usefulness that input is whether correct for the operator.

With reference to Fig. 2, moment input circuit constitute by C, K, bleeder resistance R and field effect transistor M OS, circuit goes out termination charactron G, and in A to connecting with counting circuit.When key is not pressed, K closes in 1 end, power supply E charges to C, when key is pressed, K closes in 2 ends, the C discharge makes the MOS conducting, and counting circuit gets electric input, because the discharge capacity of C is little, and the electricity of being put is released very soon through R, end again so MOS is very fast, counting circuit and power supply automatic cutout and finish the input, this process has only the utmost point short time of moment, and be not to be reset to 1 end counting circuit just to disconnect with power supply by K, at this moment second key can have been pressed input and interfere not with the input of first key, and a plurality of numbers of input continuously during practical operation have a succession rather than press simultaneously as long as press a plurality of keys continuously.Also shinny demonstration simultaneously of G when counting circuit is imported.

Claims

1, the quick computer key-board used of system, accounting, it is the above keyboard of whenever perpendicular 5 buttons of row more than 4 perpendicular row, be characterised in that one is erected row the order arrangement continuously from top to bottom of numerical key 0～4 do, its right neighbour the 1st erects row numerical key 5～9 is done the continuous arrangement of order from top to bottom, its the right adjacent the 2nd perpendicular row has "=" number and " " number key, and its left side the adjacent the 1st perpendicular row has "+" number and "-" number key.

2,, it is characterized in that the input circuit of key is introduced the moment input circuit by the described keyboard of claim 1.

3, by the described keyboard of claim 1, it is characterized in that being provided with between key and the key interval box a, the height of projection of interval box a and key are with high.

4, by claim 1 or 3 described keyboards, it is characterized in that the digital symbol of key is marked in the key face left side, and the key face left side regional b slightly inclined left that indicates digital symbol.

5, by claim 1 or 3 described keyboards, it is characterized in that there is a charactron d on the next door, a left side of key, charactron d just shows the digital symbol of this key when key is imported.

6, by the described keyboard of claim 4, it is characterized in that there is a charactron d on the next door, a left side of key, charactron d just shows the digital symbol of this key when key is imported.