CN2112861U - Novel large-format digitizer - Google Patents

Abstract

The utility model belongs to a computer input device in a computer aided design workstation. The key point is that the original small-sized digitizer is combined with a scaling mechanism, a mouse button of the original mouse is separated from a cross wire, and any figure within AO can be input by matching with a large-sized flat plate. The utility model has simple structure, convenient operation and high accuracy, the price is only 10-20% of that of a large-scale digitizer, and the utility model is easy to popularize and is particularly suitable for the computer aided design of machinery, buildings, clothes, surveying and mapping and the like.

Description

Big digitalizer

The utility model belongs to the computer entry device in the work station for computer aided design.

The digitizer model specification that is used for computer-aided design (CAD) is many, and up to A0 or bigger, the price of large format digitizer is 5-10 a times of small breadth to its breadth specification from A4, A3, A2 etc.Though the decimal fractions instrument is cheap, but its fatal shortcoming is to be difficult to big pattern digitization input, so serious restriction its range of application, and the digitizer of large format is because too expensive, many subsections and small enterprise are unable to reach, thus the development that has seriously limited work station for computer aided design with apply.

The purpose of this utility model is that small-sized digitizer is combined with scaling device, design a kind of cheap, easy to use, but input and output A breadth is with the large-scale digitizer of interior arbitrary graphic.

The utility model is characterized in that it mainly is made up of three parts as shown in the figure.One, small-sized digitizer; Two, scaling device; Three, large flat.The digitizer of prior art mainly is made up of effective digital input field and mouse, mouse is made up of mouse knob, crosshair and cable again, general and the mouse knob of crosshair is an one, and be positioned at the front of mouse knob, the back has a cable directly to be plugged in the jack of digitizer.Key of the present utility model is: the small-sized digitizer (1) of prior art is combined with the scaling device of prior art.Its concrete implementation step is: select one 36 * 54 inches surpass No. 0 large flat (2), existing small-sized (12 * 18 inches) digitizers (1) are mounted to above the large flat (2), and small-sized digitizer (1) and large flat (2) are remained in the surface level, scaling device is chosen basic point be fixed on the big template face.The mouse knob (3) and the crosshair (6) of mouse are separated, the position of crosshair (6) can be according to required size of dwindling, regulate vernier (10 '), make it be fixed on the desired position, but must be in effective input field (1) of small-sized digitizer, mouse knob (3) but fixed placement in follow needle (7) back, also can be put in the optional position as required.Crosshair (6) is with after mouse knob (3) separates, and couples together with two thin wires between the two to get final product.Crosshair (6) is pro forma the separation with mouse knob (3) in fact, just is divided into two parts on version, and essence does not change, and the cable (4) on the mouse knob (3) is constant, still is used for being connected with the jack of small-sized digitizer.

Crosshair of the present utility model (6) can be fixed on one above the small column, and there is a hole at the small column center, and the lead of crosshair (5) can be by drawing in the hole, and the one, be convenient to be connected with mouse knob (3), the 2nd, outward appearance is good-looking.Small column is fixed on the vernier (10 '), when needing to regulate, can move with vernier (10 ').If adopt the mouse of former small-sized digitizer, promptly before wear the mouse of crosshair, the socket of mouse can be changed into single-pole double-throw (SPDT) formula (general electrician all can install), when needs amplify, the plug that is fixed on the crosshair lead (5) on the vernier can be inserted in the socket of mouse back, the crosshair automatic cutout of mouse front promptly can be used for big figure input.If when only needing in former small-sized digitizer, to work, the crosshair lead (5) on the small column is pulled out, but the crosshair of former mouse front operate as normal again.Large flat of the present utility model (2) can be made by veneer, three-ply board, scale board, plastic plate, poly (methyl methacrylate) plate etc.

The utility model uses very simple, also very convenient, at first according to required up-sizing, regulate each vernier of scaling device (10) (10 '), attaching plug, computing machine plug and digitizer plug are connected respectively, large-scale pattern is put into above the large flat (2), follow needle (7) is aimed at the point of each required input, only need click mouse knob (3) promptly has a numeral to be input in the computing machine.The scaling device that the utility model is used can adopt the eidograph of prior art, also can design voluntarily according to its principle.The plug of former small-sized digitizer, circuit are constant fully, and the circuit that links to each other with power supply and computing machine all adopts prior art.

Advantage of the present utility model is: 1. can play the same effect of large-scale digitizer, and cost reduces 80-90%; 2. easy and simple to handle, follow needle input precision height, speed is fast, is easy to penetration and promotion; 3. solve small business, unit etc. and be used for the difficulty that large-scale pattern is imported; 4. make simply, with low cost, have remarkable social benefit and economic benefit.

The utility model mainly is applicable to the computer-aided design (CAD) of Machine Design, architectural design, dress designing, mapping etc.

Description of drawings:

Accompanying drawing is an one-piece construction synoptic diagram of the present utility model.

1. small-sized digitizer; 2. large flat; 3. mouse knob; 4. mouse knob and digitizer stube cable; 5. crosshair is connected lead with the mouse knob; 6. crosshair; 7. follow needle; 8. vernier connects rotation axis; 9. vernier; 10. vernier; 10 '. vernier; 11. scaling device support; 12. scaling device basic point axle;

Claims (4)

1, a kind of novel large format digitizer, mainly form by effective digital input field and mouse, a crosshair is arranged in the front of mouse, there is a cable to link to each other in the mouse back with digitizer, it is characterized in that: the utility model is mainly by small-sized digitizer, scaling device and large flat are formed, small-sized digitizer is to be mounted to one 36 * 54 inches surpass on No. 0 large flat (2), and with large flat (2) on a surface level, scaling device is fixed on the large flat (2) after choosing basic point, mouse knob (3) is fixed on the vernier of follow needle (7) back, crosshair (6) is fixed on the vernier (10 ') by a small cylinder with holes, there is a lead (5) to be connected between mouse knob (3) and the crosshair (6), has a cable (4) to be directly used in mouse knob (3) back and be plugged on the small-sized digitizer (1).

2, digitizer according to claim 1, it is characterized in that: there is a single-pole double-throw (SPDT) formula socket mouse knob (3) back, lead (5) one ends are connected with crosshair (6), and the other end has a plug directly to insert in the socket of mouse knob (3).

3, according to claim 1,2 described digitizers, it is characterized in that: mouse knob (3) can be placed on the optional position.

4, according to claim 1,2 described digitizers, it is characterized in that: large flat (2) can adopt veneer, three-ply board, scale board, plastic plate, poly (methyl methacrylate) plate etc. to make.

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