JPH04134008U - illuminated level - Google Patents

Abstract

(57) [Summary] [Purpose] To provide an illuminated level that can be used even in dark places. [Structure] A level device with a horizontal level and a vertical level, with a battery, a lighting emitter, and a switch placed in the main body, and each end face of an optical fiber positioned between the vicinity of the luminous body and the vicinity of each level. It is characterized by:

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to an illuminated level that can be used even in dark places.

0002

[Conventional technology]

Conventionally, levels have been widely used at construction sites, and these have a main body with parallel surfaces. Although bubble tubes are attached to appropriate locations, the bubbles are difficult to see in a dark place. For this reason, devices have been devised to illuminate the bubble tube with light bulbs, etc., but the idea was not successful. As shown, a water bottle that illuminates the area by guiding light through an optical fiber near the bubble tube. The flatware is currently not found.

0003

[Problem that the idea aims to solve]

Levels have been widely used as an essential item at construction sites, and are used to measure elongated parallel surfaces. Generally, a bubble tube with a limit line around the outer periphery is installed with a liquid and bubbles sealed in the appropriate place. It is true. It is used at required points to check horizontal and vertical alignment during construction. It is difficult to confirm the bubble location at dusk or at night other than when it is bright during the day. Use lighting equipment such as floodlights, or use a handheld lighter as a temporary measure. I have no choice but to admit it. When using a floodlight, a power source is required and there are restrictions on where it can be used. Also, using a lighter is cumbersome and cannot be used in areas where the use of fire is prohibited. In order to solve these problems, a level with a built-in lighting device is being considered. Because the light bulbs, etc. are located near the bubble tube, there is no need to wire between the two light bulbs and the battery. Therefore, maintenance such as replacing light bulbs and batteries is troublesome. This project is aimed at solving the problems related to the conventional level lighting method described above. It was devised in 1999, and is a light that can be used easily anytime and anywhere, and is easy to maintain and inspect. It was developed for the purpose of providing a level with a light.

0004

[Means to solve the problem]

In a level with a horizontal vial and a vertical vial, batteries, light emitters for lighting, and A switch is installed at an appropriate location within the main body, and an optical Position each end face of the fiber. The present invention is an illuminated level device having the above configuration.

[0005]

[Effect]

To use this method, when the switch is turned on, the light emitted from the luminous body is The light will be guided by the fibers to illuminate the horizontal and vertical vials. Optical fiber is made of a cylindrical transparent body, and if it is thin, it can be quite thin. It has flexibility. The light incident from the end face undergoes total internal reflection on the inner surface of the fiber. Therefore, almost the same amount of light is emitted from the other end surface at the time of incidence with low loss. . Therefore, in this case, when the switch is turned on when necessary, the bubble tube is illuminated with light equivalent to the light source. The bubble position can be easily checked even in dark places, and the switch can be turned off. Since it can be used as a normal level, the power consumption is minimal.

[0006]

【Example】

Examples of the present invention will be described below. (B) Inside the hollow rectangular body, an adapter (A) is placed near the center and one end. The main body (1) is formed by inserting and fixing the main body (B). (b) Cut out the center upper part of the main body and insert the horizontal air into the recess provided in the upper part of the adapter (A). Screw the bubble tube (2) through the spring (3). (c) Inside the adapter (B), holder (6) equipped with battery (4) and light bulb (5) ) is inserted and held, and the switch (7) connected to the holder is held. (d) Insert the optical fiber (8) into the hole provided in the adapter (A). Position the end directly below the center of the horizontal vial, and point the end face toward the horizontal vial. Insert and hold, and position the other end near the bulb. (e) Insert and screw the vertical vial (9) near the end of the main body on the opposite side of the switch. One end of the optical fiber (10) inserted and held in the adapter (A) is placed near the vertical bubble tube, and the other end is placed near the bulb. The above is one embodiment of the present invention.

[0007] In this example, each device is housed inside the main body, so it looks like a normal level. You can simply turn on the switch when needed without having to change anything. In addition, since optical fiber is used, only one light source is required. Since light can be guided near each bubble tube, it can also be used for long levels. In addition to light bulbs, light emitting diodes can also be used as light emitters, and each You can choose according to the situation. According to this proposal, a bubble tube can be illuminated with a simple device, and a battery and a light emitter can be used. and optical fiber are separated, making maintenance such as battery replacement easier. It's easy.

[0008]

[Effect of the idea]

This invention uses light obtained from a battery and a light emitter installed inside the main body to create an optical Since the optical fiber is used to guide and illuminate the vicinity of each bubble tube, only one light source is required. Also, since the light source and optical fiber are separated, maintenance is easy. You can get an illuminated level. Since the switch is turned on and off when necessary, power consumption is low, and each Since the device is built into the main unit, it can be used like a regular level during the day. can be provided.

[Brief explanation of drawings]

[Figure 1] Perspective view of the proposal

[Figure 2] Diagram explaining the internal structure of this proposal

[Explanation of symbols]

1 Main body 2 horizontal vial 3 Spring 4 Batteries 5 Light bulb 6 Holder 7 Switch 8 Optical fiber 9 Vertical vial 10 Optical fiber A Adapter B Adapter

Claims (3)

[Scope of utility model registration request] Claim 1: A level having a horizontal level and a vertical level, in which a battery, a light emitter for illumination, and a switch are provided at appropriate locations within the main body, and each end face of an optical fiber is provided between the vicinity of the light emitter and the vicinity of each level. An illuminated level device characterized by having a. 2. The illuminated level according to claim 1, wherein the illumination light emitter is a light bulb. 3. The illuminated level according to claim 1, wherein the illumination light emitter is a light emitting diode.