CN2233604Y

CN2233604Y - Colour coordinating calculating scale

Info

Publication number: CN2233604Y
Application number: CN 94214729
Authority: CN
Inventors: 赵明林
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-06-08
Filing date: 1994-06-08
Publication date: 1996-08-21
Anticipated expiration: 2004-06-08

Abstract

The utility model relates to a calculating tool. Abacuses and calculators are used when shop assistants calculate the price of goods, but the operating speed of the two kinds of calculating tools is slow. With complex use, exiting calculating scales can not be widely used by people. The utility model relates to a colour coordinating calculating scale which enables people to achieve easy and rapid calculation. An orthogonal coordinate is printed on a smooth plate (1), and a colour coordinate net is drawn on the smooth plate with the lines of different colours. A sliver transparent plastic sheet (6) is arranged on the origin (4) of the coordinate, and a straight line (7) passing the origin (4) is drawn the sliver transparent plastic sheet. The sheet can rotate around the origin (4). The vertical and horizontal axles of the coordinate respectively represent sum and quantity. The slope of the straight line is adjusted following different unit price. The calculation can be quickly carried out through the visual lines of the colour coordinate net after the straight line is fixed.

Description

Color coordinate formula slipstick

The utility model relates to a kind of computational tool.

The shop-assistant is when carrying out the commodity valuation, and used computational tool has abacus and counter, and these two kinds of tool operation errors are difficult for realizing, need repeatedly dial pearl, button, influence the efficient of selling goods.

Existing garden disc type meter slide rule and sliding slipstick are a kind of computational tools of precision, but user's mathematical knowledge is had relatively high expectations, and are difficult to make the shop-assistant generally to grasp.

The purpose of this utility model is that a kind of color coordinate formula slipstick will be provided, and it can make people calculate fast simply.

The purpose of this utility model is to realize like this, on a smooth plate, be printed on colored rectangular coordinate system, in length and breadth the each point on the coordinate axis respectively by the different lines of color through and be parallel to horizontal axis of ordinates, form a color coordinate net, there is a rectangular transparent plastic sheet to be positioned on the true origin place, this plastic sheet has a straight line through initial point, can be around the initial point rotation, ordinate is represented quantity, horizontal ordinate is represented the amount of money, straight slope on the rectangular plastic sheet can be adjusted with the unit price difference, straight line goes to corresponding angle after cargo price is certain, and also intersect with colored ordinate colored horizontal line and straight line intersection corresponding on the different commodity amount axiss of ordinates, and the point of this ordinate on abscissa axis just represented the amount of money.

The utility model is owing to only be printed on the color coordinate net on flat board, and adds adjustable oblique line, so structure is simple especially; The coordinate net of different colours can make the people obtain the amount of money (quantity) by quantity (amount of money) rapidly simultaneously, calculating each time of it is static in addition, and people can check with eyesight, can avoid error, it can make different size specifications as required in addition, to satisfy different needs.

The concrete structure of utility model is provided by following examples and accompanying drawing.

Accompanying drawing is the planimetric map according to the color coordinate formula slipstick that the utility model proposes.

Below in conjunction with details and the operational circumstances of accompanying drawing detailed description according to the concrete device that the utility model proposes.

This device comprises a smooth plate (1), rectangular coordinate system on the plate is made up of axis of ordinates (2), abscissa axis (3), initial point (4), colored lines (5), rectangular transparent plastic sheet (6) is painted with straight line (7), be positioned on initial point (4) and locate and can rotate around initial point (4), straight line (7) is through initial point (4).

When cargo price is decided to be 1.2 yuan per jin, rectangular plastic sheet (6) goes to straight line through (1,1.2) the point, 1.5 the amount of money that jin is corresponding can and intersect the point that drops on the abscissa axis (3) with colored ordinate by 1.5 colored horizontal line on the axis of ordinates (2) and straight line intersection and draw for 1.8 yuan, if straight line and colored horizontal line joining asking at two colored ordinates, and the precision prescribed height then only just can meet the demands to multiply each other the add deduct amount of money of left and right sides axis of ordinates point of unit price and quantity mantissa.

Claims

1. calculate and use the particularly color coordinate formula slipstick of commodity retail calculating usefulness, this slipstick (1) on a smooth plate is painted with a rectangular coordinate system, it is characterized in that having a strip transparent plastic sheet (6) to be positioned on initial point (4) locates, and it is rotatable, straight line (7) on the plastic sheet (6) is through initial point (4), the color coordinate net passes through the each point of indulging on (horizontal stroke) coordinate axis by the straight line of different colours, and is parallel to horizontal stroke (indulging) coordinate axis.