KR200336494Y1 - Digital Display ruler without scale - Google Patents

Abstract

The present invention relates to a functional tape measure that eliminates the scale of the tape measure and instead allows the numerical value to be viewed in the form of digital liquid crystal.

According to the present invention, an optical sensor (each drawing 8) attached to an entrance portion (each drawing 16) is taken out when the tape measure is taken out with a spiral spring (each drawing 10) having a tape measure (each drawing 9) embedded therein. The length of the line portion entering and exiting is measured and this numerical value is shown in the digital liquid crystal (Fig. 7). In this case, if you take out the tape measure as long as you want to measure the length, the corresponding value is automatically displayed on the digital liquid crystal. If you use this tape measure, you don't need to read the scale like the traditional tape measure. You can easily measure the length in the dark by inserting the light on the digital LCD display. Tape measure with convenient features that can be used at any time as it is visible

Description

Digital Display ruler without scale}

In the present invention, when a tape measure is used in the technical field to which the present invention belongs, in the conventional tape method, in which a reading of a scale marked on a tape measure is performed, an optical sensor is attached to the entrance of the measuring line, and a built-in line may be drawn out. When reading the movement of the line to display the measured value on the digital liquid crystal to provide a technique that can easily measure the value even with a tape measure not marked with a scale.

The present invention eliminates the inconvenience of reading a tape measure, making it easy to view numerical values through a liquid crystal display device, to easily select various measurement units, and to add a light function to the liquid crystal display device so that the numerical measurement can be easily performed in a dark place. do. In addition, it is possible to measure in the desired unit by adding a function to select a variety of measurement units, such as inches and meters.

In particular, it is not necessary to mark the tape measure, so the tape measure can be designed in various materials and forms, so that its use can be spread to various fields unlike the existing tape measure.

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Representative diagram: A gridless digital liquid crystal display with an image of the entire assembly process.

Figure 1: Principle diagram of digital LCD display without scale

Figure 2: Scaleless digital liquid crystal display tape measure shown in front view

Figure 3: Scaleless digital liquid crystal display tape measure shown on the left side

Fig. 4: Digital LCD display tape measure without scale shown in plan

Figure 5: A grid-less digital liquid crystal display showing the overall assembly process as an image

<Explanation of symbols for main parts of drawing>

1. battery cover 2. battery

3. Digital LCD Home 4. Battery Home

5. Upper case 6. PCB

7. Digital liquid crystal 8. Optical sensor

9. Tape measure without scale 10. Spiral spring

11. Groove with optical sensor 12. Spiral winding device shaft

13. Spiral spring mounting groove 14.

15. Bottom case 16. Tape measure entrance

17. Light button 18. Unit of measure button

19. Unit of measure display

According to the present invention, when the tape measure (each figure 9) is taken out of the tape measure (each figure 9) for the measurement object without marking the scale on the tape measure, the optical sensor (each figure) 8), the length of the part to be taken out is measured, and this value is displayed on the LCD screen (Fig. 7). More specifically, when the built-in tape measure part comes out to measure the measurement object, the measurement is performed by an optical sensor (each figure 8) installed at the rope withdrawal inlet (each figure 16), and the signal transmitted from the sensor is measured by a signal processor ( Each signal is sent to each figure 6), and the signal processor interprets the signal to obtain a value for the length of the line to be drawn and displays the measured value on the digital LCD screen (each figure 7) in real time. Whenever the length of the drawing is adjusted, the corresponding numerical value is shown on the digital liquid crystal in real time.

When measuring in the dark, press the light button (Fig. 17) to receive the light button input signal from the signal processing unit (Fig. 6) to operate the light installed in the liquid crystal (Fig. 7) to light the liquid crystal. You can read the figures and press the unit of measurement button (Fig. 18). The signal processing unit (each figure 6) has a function for converting between metric and inch units. Change from units to inches to display (each figure 19).

As described above, according to the present invention, a measurement object can be conveniently measured without using a complicated scale when using a tape measure, and various functions such as a light function and a measurement unit conversion function can be set using a liquid crystal display. A convenient multi-function graduation-free digital liquid crystal display tape is produced.

Claims (3)

With the scale not marked on the tape measure, take out the part where the tape measure (each figure 9) is built for the length of the measurement object and install an optical sensor (each figure 8) at the part where the tape measure enters and exits (each figure 16). The length of the portion to be taken out is measured and this value is displayed on the LCD screen (Fig. 7). More specifically, when the built-in tape measure part comes out to measure the measurement object, the measurement is performed by an optical sensor (each figure 8) installed at the rope withdrawal inlet (each figure 16), and the signal transmitted from the sensor is measured by a signal processor ( Each signal is sent to each figure 6), and the signal processor analyzes the signal to obtain a value for the length of the line to be drawn and displays the measured value on the digital LCD screen (each figure 7) in real time. The scaleless digital liquid crystal display tape, characterized in that configured to show the corresponding numerical value in the digital liquid crystal in real time whenever the length of the drawing is adjusted. When measuring in the dark, press the light button (Fig. 17) to receive the light button input signal from the signal processing unit (Fig. 6) to operate the light installed in the liquid crystal (Fig. 7) to light the liquid crystal. Digital scale display bar without scale, characterized in that configured to read in. When the unit of measurement button (each figure 18) is pressed, the signal processor (each figure 6) has a function for converting between the metric unit and the inch unit. A graduated digital liquid crystal display tape, characterized in that it is configured to display (each figure 19).