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Luminous ruler

A ruler and ruler body technology, applied in the field of luminous rulers, can solve the problems that users cannot read the readings on the ruler surface, troubles, etc.

Inactive Publication Date: 2015-12-23
HUANGSHI UNIVERSE AUTO EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But in some special cases, such as in some dark corners, or in poor light conditions, the user cannot clearly read the readings on the ruler surface
In this case, the ordinary ruler cannot be used well, and it is necessary to find another light source, which is very troublesome

Method used

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  • Luminous ruler

Examples

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Embodiment Construction

[0012] refer to figure 1 A luminous ruler embodiment of the present invention will be further described.

[0013] Such as figure 1 A luminous straightedge shown includes a ruler body 1 made of transparent plastic, and the ruler body 1 includes three layers, a surface layer 13 , a middle layer 12 and a bottom layer 11 . The scale 2 is arranged between the surface layer 13 and the middle layer 12, which can well prevent the scale 2 from being worn during use, so that the service life of the ruler is longer.

[0014] In this embodiment, the setting of the core is the led lamp 4 arranged on the middle layer 12, the reed switch 6, the button battery 3 and the magnet 8 arranged on the surface layer 13 which can slide. The led lamp 4, the dry reed switch 6 and the button battery 3 are connected into a loop through the copper wire 5. A chute 7 is set on the surface layer 13 of the ruler body 1, and the magnet 8 arranged in the chute 7 can slide along the direction of the chute 7, s...

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Abstract

The invention discloses a luminous ruler. The luminous ruler comprises a ruler body. The ruler body is provided with scales and arranged to be transparent. The ruler body comprises a bottom face layer, a middle layer and a surface layer. A button cell, an led light, a reed switch and a plurality of copper-bar wires are arranged in the middle layer. The button cell, the led light, the tongue tube and the multiple copper-bar wires form a circuit loop. The surface layer is further provided with a sliding groove. A slidable magnet is arranged in the sliding groove. The luminous ruler can be used in a dark environment.

Description

technical field [0001] The present invention relates to a measuring tool, more specifically, it relates to a ruler capable of emitting light. Background technique [0002] Straightedge is a common measuring tool with accurate straight edges, used for measuring length and drawing, and is widely used in mathematics, surveying, engineering and other disciplines. [0003] Ordinary rulers are all set as flat cuboids with scales on the edges of their surfaces, so that they can be measured well. However, in some special cases, such as in some dark corners, or in poor light conditions, the user cannot clearly read the reading on the surface of the ruler. In this case, the ordinary ruler cannot be used well, and it is necessary to find another light source, which is very troublesome. Contents of the invention [0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a luminous ruler that can be used in relatively dark environments. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B43L7/00F21V33/00
Inventor 张旭超
Owner HUANGSHI UNIVERSE AUTO EQUIP
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