Level

Abstract

Provided is a level whereby the horizontal state and the tilt angle thereof can be instantly and clearly confirmed by using a band-shaped light-emitting body that shines linearly. The level comprises: a sensor 10 that detects the tilt angle; a display unit 2 comprising a plurality of band-shaped display bodies that emit light linearly by using LEDs and display the tilt angle; and a controller 11 that receives an output signal from the sensor 10 and outputs a control signal such that a specific band-shaped display body shines. The band-shaped display bodies comprise one horizontal band-shaped display body 5a positioned at the center of the display unit and a plurality of band-shaped display bodies 5b, 5c, .. for tilt angle display that have the tips thereof bent towards the center of the display unit. LEDs 6a, 6b, .. are attached to an end of each band-shaped display body and the band-shaped display bodies are configured such that a pair of band-shaped display bodies at a position having point symmetry with the center of the display unit shine simultaneously according to the tilt angle.

Description

technical field [0001] The present invention relates to a spirit level capable of instantly and accurately confirming the degree of a horizontal state and an inclined state by using a strip-shaped light emitting body that emits light in a linear shape. Background technique [0002] Conventionally, spirit levels have been widely used in construction sites, piping construction sites, etc., to check the horizontal or vertical state. Conventional spirit levels are basically of the type that uses a bubble tube that encapsulates liquid and air bubbles, and uses such a structure to confirm a level state based on whether the air bubbles are within a predetermined range in the liquid. [0003] However, in conventional spirit levels, there is a problem that it is difficult to confirm the position of the air bubble immediately, and there is also a problem that the position of the air bubble cannot be seen at all in a dark place. Therefore, as shown in Patent Document 1 to Patent Docum...

AI Technical Summary

Problems solved by technology

[0004] However, in the case of Patent Document 1 and Patent Document 3, since the determination is also made based on the position of the air bubble, there is a problem that it is difficult to confirm instantaneously, and there is a problem that it cannot be confirmed unless it is near the level.

On the other hand, as shown in Patent Document 4, an inclination sensor device has also been proposed in which a plurality of line segments are arranged as a visual display unit, and the line segments are displayed according to the inclination. However, There is a problem that it is difficult to instantly recognize the direction of inclination and the degree of inclination

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