CN2096776U - Position quick abacus - Google Patents

Abstract

The utility model discloses a position quick abacus. The center sill (2) of the position quick abacus is provided with a subtraction sign (9), and a position number scale (7). The position number scale (7) is used in the division that the divisor is an integer and in the multiplication that the multiplicand is a decimal. The lower frame (1) is provided with an addition sign (10) and the position number scale (8). The position number scale (8) is used in the multiplication that the multiplicand is an integer and in the division that the divisor is a decimal. When the position quick abacus is used, the unit position of the called product or quotient on the abacus can be directly determined according to the digit bit of the two numbers which attend the operation. The position quick abacus has the advantages of clear, visual, and convenient use, and accurate and rapid position.

Description

Position quick abacus

The utility model relates to a kind of abacus, particularly locatees speed abacus.

The abacus that uses has common abacus and Position abacus at present, when common abacus is used for multiplication and division, owing to there is not telltale mark, during calculating, need often pause consideration location, particularly chance are taken advantage of (removing) number, taken advantage of (removing) number all is decimal, or connect the company of taking advantage of and remove etc., this problem is just more outstanding, and its result not only makes computing velocity slow down, but also often influences the correctness of result of calculation.At this situation, people have invented Position abacus, though these abacuses have changed the deficiency of original abacus to a certain extent, positional accuracy are increased, but from present Position abacus, ubiquity the slow problem of computing velocity, and if any a kind of Position abacus, it is by pull vernier location, the pull vernier need often be deadlocked during calculating, though its positional accuracy is higher, speed is slower, and the making of abacus itself is also cumbersome.

The purpose of this utility model is to overcome the deficiencies in the prior art part and a kind of location speed abacus is provided, and this abacus not only accurate positioning is rapid, and easy to use directly perceived, and the making of abacus own also is easier to.

For achieving the above object, the solution that the utility model adopts is: be the abacus of heterochromatic pearl every two grades in the pearl in the use, on the abacus central sill, be provided with before first grade "-" number, be provided with before first grade on the lower frame "+" number, corresponding to every grade a location number mark that is arranged in order by " 0987654321098 ... " is arranged from left to right on the central sill, corresponding to every grade a location number mark that is arranged in order by " 123456789012 ... " is arranged from left to right on the lower frame.

Below in conjunction with drawings and Examples the utility model is described in further detail.

Fig. 1 is the utility model structural representation.

Among Fig. 1, what the utility model adopted is that upward pearl is that pearl is the abacus of four pearls under the pearl, it comprises frame 1, beam 2, shelves 3, last pearl 4 and following pearl 5, be heterochromatic pearl 6 every two grades in the last pearl 4, on this abacus, heterochromatic pearl 6 is positioned at first, four, seven ... shelves, we can find out from figure, on abacus central sill 2, be provided with "-" numbers 9 before first grade, be provided with "+" numbers 10 on the lower frame 1 before first grade, corresponding to every grade 3 location number mark 7 is arranged from left to right on the central sill 2, this location number mark 7 is arranged in order by " 0987654321098 ... ", each shelves 3 corresponding one of them numeral, corresponding to every grade 3 location number mark 8 is arranged also from left to right on the lower frame 1, this location number mark 8 is arranged in order by " 123456789012 ... ", each shelves 3 corresponding one of them numeral, digital " 0 " can be used as " 10 " and treats in the number mark, symbol and location number marks all on the abacus can be printed directly on central sill 2 and the lower frame 1, also can use the word nail that symbol and location number mark are beaten on central sill 2 and lower frame 1, symbol and location number mark all is spill like this, permanent use can not come off, the making of abacus can be adopted high-quality timber, the insignificant problem, plastics, the garden bamboo is a main material, general use ten second gears get final product, and can be made into six grades or 18 grades for some special use.

It is the multiplication of decimal that "-" in the utility model on the central sill 2 numbers 9 and location number mark 7 are used for division and multiplicand that divisor is an integer, it is the division of decimal that "+" on the lower frame numbers 10 and location number mark 8 are used for multiplication and divisor that multiplicand is an integer, during concrete operation, be decimal or integer at first according to multiplicand or divisor, deciding the telltale mark 7 that is to use on the central sill 2 still is location number mark 8 on the lower frame 1, during use, multiplication generally adopts blank panel to take advantage of, division can adopt to change to discuss for the beginner and remove, for the practician, the general employing returned division or the complement division that changes combination, avoids to use every the position and takes advantage of and discuss and remove.When cloth is counted, for the best cloth multiplier of multiplication, for the best cloth dividend of division.When "+" numbers 10 and location number mark 8 on utilizing lower frame, at this moment "+" numbers 10 can regard plus sige as, (just see that for integer it is several according to the multiplicand (dividend) of participating in computing and the figure place of multiplier (divisor), just see behind its radix point zero number for decimal) directly addition on lower frame number mark 8, promptly move right, the position of total is the long-pending or merchant's bit position of gained after the addition, as: 23 * 22, multiplicand 23 is an integer, use on the lower frame 1 "+" numbers 10 and location number mark 8,23 and 22 figure place all is 2, with number mark 8 on the lower frame 1,2+2=4, then " 4 " corresponding gear is a position of product on the number mark 8, the employing blank panel is taken advantage of, from the computing successively of first shelves, computing is intact can copy down the long-pending numerical value of gained at once, and for example: 23 * 0.02,23 figure place is 2,0.02 have only one zero behind the radix point, 2+1=3, promptly " 3 " corresponding gear is a position of product on the number mark 8, when "-" on utilizing central sill 2 numbers 9 and location number mark 7, at first also be according to the multiplicand (dividend) of participating in computing and the figure place of multiplier (divisor), decide its long-pending or merchant's a position, different with the number mark 8 on using lower frame 1 is, symbol on the lower frame 1 is "+" numbers 10, the addition on number mark 8 of all figure places promptly moves right, and the symbol on the central sill 2 is "-" numbers 9, all figure places are subtracted each other promptly and are pushed away left, as 0.05 ÷ 23, divisor 23 is integer, uses on the central sill 2 "-" numbers 9 and location number mark 7,0.05 have only one zero behind the radix point, calculate 1,23 is 2, because 0.05 has only 1,23 is 2, when using number mark 7 when moving to left, gear is not enough, at this moment can use the heterochromatic pearl 6 in the pearl 4, as use heterochromatic pearl 6 on the fourth speed as a position, dial in dividend 0.05, gained merchant's a position promptly be from heterochromatic pearl (fourth speed) to the position that moves to left after two, i.e. " 9 " corresponding gear on the number mark 7.It should be noted that especially, the decimal of indication is a pure decimal in above-mentioned, in addition, be that integer and dividend are the division of decimal and multiplier when all being the multiplication of decimal with multiplicand when meeting divisor, owing to moving to left, gear is not enough, at this moment need use the heterochromatic pearl 6 in the pearl, specifically use which heterochromatic pearl, can determine according to two numerical digit numbers, promptly use on the central sill 2 and counted mark at 7 o'clock, have enough shelves numbers can make figure place to moving to left.This abacus use skilled after, only, just can finish all multiplication and divisions with "+" on the lower frame numbers 10 and number mark 8.

The utility model is owing to adopted "-" number and the location number mark on central sill, on lower frame, adopted "+" number and location number mark, thereby make the utility model be used for multiplication and division when location not only accurately rapidly but also clear, directly perceived, convenient, abacus itself making simultaneously is also uncomplicated.

Claims (1)

1, a kind of location speed abacus, it comprises frame, beam, shelves, goes up pearl and following pearl, wherein going up in the pearl every two grades is heterochromatic pearl, it is characterized in that: be provided with before first grade on the central sill "-" number, be provided with before first grade on the lower frame "+" number, corresponding to every grade a location number mark that is arranged in order by " 0987654321098 ... " is arranged from left to right on the central sill, corresponding to every grade a location number mark that is arranged in order by " 123456789012 ... " is arranged from left to right on the lower frame.