JP3155626U - Edge light (registered trademark) ruler. - Google Patents

Abstract

To provide a plastic ruler capable of clearly observing a scale even in a dark place and accurately measuring the size of a target object. The light passing through the acrylic resin utilizes the property that the end face in the traveling direction shines brightly, and an LED is placed on the back of the plastic ruler and the light emitted from the LED is turned on when the power is turned on. Because the inclined surface and the end surface of the scale part shine brightly due to the edge light (registered trademark) effect, it is possible to create a ruler that can accurately measure the dimensions of the target object without moving to a bright place even in a dim place. It becomes possible. [Selection] Figure 1

Description

The present invention relates to a plastic ruler.

The conventional ruler has the disadvantage that the scale is difficult to read when used in a dark place, and the dimensions must be read by moving to a bright place or changing the body direction to light. . (Patent Document 1)
JP2008-304442

It provides a plastic ruler that can clearly see the scale even in dark places and can accurately measure the dimensions of the object.

Means to solve the problem

In order to achieve the above-mentioned object, the present invention provides a plastic ruler 1 made of acrylic, styrene, polyester or the like having a scale part, an LED 2 at the rear end opposite to the scale part, and a rechargeable battery 3 for causing it to emit light. , And a member 6 comprising a power switch 4 and a battery cover 5, and light emitted from the LED 2 is diffused and diffused by an edge light (registered trademark) by a fine knurl 7 provided at the rear end of the plastic ruler 1. Due to the effect, the scale part can be illuminated uniformly.

Further, by engraving the scales and numbers of the plastic ruler 1 by about 0.2 mm at the time of molding, it is possible to brighten all the scales and numbers by the above-mentioned Edgelight (registered trademark) effect.

The number of LEDs 2 serving as the light source may be incorporated according to the length of the ruler.

The battery 3 serving as a power source can reduce the thickness of the member 6 by using a thin and round lithium battery.

Effect of device

According to the edge light (registered trademark) ruler according to an embodiment of the present invention, when measuring a dimension using a ruler in the dark, the light is moved to a bright place or the direction of the body is light. The effect that the objective can be achieved without turning in the direction can be expected. Specifically, it is as shown below.

As shown in FIG. 4, for example, by utilizing the characteristic that the light of the LED 2 passing through the acrylic resin goes straight and the end face part shines brightly, the obliquely inclined scale part and the peripheral end face are edge light (registered). There is an effect that the surface shines brightly due to the (trademark) effect.

Further, as shown in FIG. 5, the scale and number of the plastic ruler 1 are dug down by about 0.2 mm, and the scale and number are all brightly illuminated by the edge light (registered trademark) effect as described above.

Further, by arranging LEDs 2 such as white, red, yellow, green, and blue as the light source on the back of the plastic ruler 1, there is an effect that a user's favorite color can be selected.

Best mode for carrying out the invention

FIG. 1 is a perspective view in which an edge light (registered trademark) ruler according to an embodiment of the present invention is assembled. FIG. 2 is an exploded perspective view thereof. In order to illuminate the scale portion of the plastic ruler 1 by the edge light (registered trademark) effect, for example, if it is a 30 cm ruler, the LED 2 serving as a light source for illuminating the rear center of the width is provided. In addition, a part of the rear end of the plastic ruler 1 was cut out into a bow shape, and light was emitted from the LED 2 by engraving V-shaped knurls 7 at a pitch of about 1.5 mm on the end face. The light is diffused, and the scale part of the plastic ruler 1 can be illuminated uniformly.

Since the thickness of the normal plastic ruler is about 3 to 4 mm, the thickness of the member 6 is preferably about 5 to 6 mm, and the width is adjusted to the width of the plastic ruler 1 as shown in FIG. It may be as short as possible.

Further, instead of the above-mentioned lithium battery, solar power 8 may be used as shown in FIG. The details of the present invention will be described below by showing examples, but the configuration and shape can be changed. The present invention can be implemented in many different modes, and should not be construed as being limited to the description of the following examples. This will be described with reference to the drawings.

FIG. 2 is an exploded perspective view of an edge light (registered trademark) ruler according to an embodiment of the present invention. The plastic ruler 1 is injection-molded with a transparent resin such as acrylic, styrene, polyester, etc. as shown in claim 1, and a part of the rear end thereof is cut into a bow shape, and a V-shape with a pitch of about 1.5 mm is formed on the end surface of the bow shape. The knurling 7 is provided. (FIG. 3) And the member 6 shape | molded by the ABS resin designed so that LED2 may be arrange | positioned about 1 mm after the notch part is assembled | attached. The member 6 is provided with a power switch 4 for lighting the LED 2 and is used as necessary.

As shown in FIG. 3, the rear end of the plastic ruler 1 is provided with a bow-shaped cutout, and the V-shaped knurl 7 is engraved on the end surface so that the light emitted from the LED 2 is diffused. The front side, that is, the end face and the inclined surface around the scale portion shine brightly due to the edge light (registered trademark) effect. FIG. 4 is a cross-sectional view showing the progress of light emitted from the LED 2. ,

As shown in FIG. 5, the scale part and the number of the plastic ruler 1 are formed by digging about 0.2 mm from the bottom surface of the plastic ruler 1 so that the light from the LED 2 hits the edge surface as described above. The numbers will shine brightly.

FIG. 6 shows an embodiment in which the length of the member 6a is changed in the present invention.

FIG. 7 shows an embodiment using solar power 8 as a power source.

FIG. 8 is a front view of an edge light (registered trademark) ruler according to an embodiment of the present invention.

FIG. 9 is a rear view of an edge light (registered trademark) ruler according to an embodiment of the present invention.

FIG. 10 is a top view of an edge light (registered trademark) ruler according to an embodiment of the present invention, and includes a power switch 4.

FIG. 11 is a bottom view of an edge light (registered trademark) ruler according to an embodiment of the present invention. A battery cover 5 is provided, and a consumed battery can be replaced as necessary.

FIG. 12 is a right side view of an edge light (registered trademark) ruler according to an embodiment of the present invention.

FIG. 13 is an aa cross-sectional view of an edge light (registered trademark) ruler according to an embodiment of the present invention.

FIG. 14 is a perspective view of an edge light (registered trademark) ruler according to an embodiment of the present invention. The dimensions are approximately 340 mm in width, 46 mm in depth, and 5.5 to 6 mm in thickness. Easy to handle and suitable.

FIG. 15 is a diagram showing an embodiment for the purpose of obtaining brighter and uniform light by using two rechargeable batteries 3 so that they can be used for a long time and using two LEDs 2. is there.

FIG. 16 shows an embodiment in which the member 6c can be made smaller by reducing the size of the rechargeable battery to be used, and the plastic ruler 1a can also be shaped as shown in the figure to obtain a lighter feeling. It is a figure

FIG. 17 is a perspective view showing an embodiment in which the shape of the member 6c is changed. The dimensions of the member 6c are preferably about 140 mm in width and about 16 mm in depth.

FIG. 18 is a front view of an embodiment in which the member 6d is assembled.

FIG. 19 is a perspective view of the embodiment shown in FIG. 18. The dimensions of the member 6d are preferably 140 mm in width and 16 mm in depth.

According to the edge light (registered trademark) ruler in the present invention, it can be expected to be effective in measuring the size of a target object even in a dim place where there is no lighting fixture or in extreme darkness, and it is for those who work finely. It is an effective means.

The perspective view of the edge light (trademark) ruler which concerns on one Embodiment of this invention. The disassembled perspective view of the edge light (trademark) ruler. The elements on larger scale of the edge light (trademark) ruler. Sectional drawing of the edge light (trademark) ruler. 1 is a partial perspective view of an edge light (registered trademark) ruler according to an embodiment of the present invention. The perspective view of the edge light (trademark) ruler which concerns on one Embodiment of this invention. The perspective view of the edge light (trademark) ruler which concerns on one Embodiment of this invention. The front view of the edge light (trademark) ruler which concerns on one Embodiment of this invention. The rear view of the edge light (trademark) ruler. The top view of the edge light (trademark) ruler. Bottom view of the edge light (registered trademark) ruler Right side view of the edge light (registered trademark) ruler Aa side view of the edge light (registered trademark) ruler The external-dimension perspective view of the edge light (registered trademark) ruler. The top view of the edge light (registered trademark) ruler concerning one embodiment of the present invention. The top view of the edge light (registered trademark) ruler concerning one embodiment of the present invention. The perspective view of the edge light (trademark) ruler. The top view of the edge light (registered trademark) ruler concerning one embodiment of the present invention. The perspective view of the edge light (trademark) ruler.

1 ... Plastic ruler 1a ... Plastic ruler 2 ... LED
3 ... Rituum battery 4 ... Power switch 5 ... Battery cover 6 ... Member 6a..Member 6b..Member 6c..Member 6d..Member 7 ... Knurling 8 ... Sunlight Electric power

Claims (4)

A plastic that features a light source of LED on the rear end surface of a ruler made of transparent resin such as acrylic, styrene, polyester, etc., and when the power switch is turned on, the end surface of the scale part shines brightly, and the scale can be read firmly even in dimly lit places ruler. 2. The plastic ruler according to claim 1, wherein the scale part is engraved in a shape of about 0.2 mm at the time of molding, and the scale and number shine brightly when the power switch is turned on. 3. The method according to claim 1, wherein white, red, yellow, blue, etc., the front end of the scale, or the scale itself shines in each color depending on the light emission color of the LED used. Plastic ruler. The plastic ruler according to any one of claims 1 to 3, wherein the power source is solar power.

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