JPH09207496A - Multifunctional ruler - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a multifunctional ruler which can be used as a square, a plain triangle, a parallel ruler (L-shaped ruler), a graduator, a compass or a template. SOLUTION: This multifunctional ruler is composed of a first ruler A and a second ruler B which is connected to the first ruler A in such a way that the second ruler B is rotated while it is freely detachable with the ruler A. The first ruler A has a first linear edge 2 with graduations 1 and a second linear edge 3 extended in an orthogonal direction from the end part of the first linear edge 2. The second ruler B has the first linear edge with graduations. In addition, the first ruler A forms a circular template with graduator graduations 6 and perforated small circular through holes 8, 8 of varying diameter. Further, the second ruler B has a slide rail having graduations extended in parallel along the first linear edge 2 and a slider C engaged in such a way that the slider C slides in the sliding groove of the slide rail. Besides, the second ruler B has a center needle screw for a compass screwed to the ruler B at such a position as set at a zero position on the graduations of the center line of the slide rail. On the other hand, a screw 20 for fixing the slider C and a through hole for inserting a lead for a writing instrument are provided on the slider C.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-function ruler that can be used as a right-angle ruler, a triangle ruler, a parallel ruler (L-type ruler), a protractor, a compass, or a template.

[0002]

2. Description of the Related Art A conventional ruler has only one or two functions out of the above multi-functions.

[0003]

However, that is not enough. The present invention eliminates such drawbacks and achieves the above-mentioned multi-functionality with two rulers.

[0004]

SUMMARY OF THE INVENTION The present invention comprises a first ruler A and a second ruler B which is detachably connected to the first ruler A so as to be rotatable. The first ruler A is A first straight edge 2 having a scale 1 and a second straight edge 3 extending in each direction directly from the end of the first straight edge 2 are provided, and the second ruler B has a scale 13. It has one straight edge 14. Further, the first ruler A forms a circular template by forming a degree scale 6 and a plurality of small circular through holes 8, 8, ... With different diameters. Further, the second ruler B has a slide rail 16 having a scale 15 extending in parallel along the first straight edge 14 thereof, and a slider C fitted to the sliding groove of the slide rail 16 so as to slide. A central needle screw 18 for a compass is screwed, the position of the central needle screw 18 is set to the zero position of the scale 15 on the center line of the slide rail 16, and a screw 20 for fixing the slider C to the slider C is provided. A through hole 21 for inserting the core of the writing instrument is provided.

The first straight edge 2 and the second straight edge 3 of the ruler A
Can be used as a right angle ruler (L type ruler) with, and can be used as a protractor with the degree scale 6 of the first ruler A, and can also be used as a template by using the through holes 8, 8, ... Of small circles. I can. There are also two first rulers A and two
It can be used as two triangular rulers and with parallel ruler B. Further, by rotating the second ruler B with respect to the first ruler A, it is possible to perform drawing and measurement at an arbitrary angle between the straight edge 2 and the straight edge 14. further,
With the second ruler B alone, the center needle screw 18 and the through hole 21 for inserting the core of the writing instrument of the slider C can be used to write a circle of any diameter, can be used as a compass, and the center needle screw 18 can be retracted and Can also be used as a ruler.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1A is a plan view of a first ruler A and a second ruler B according to the first embodiment of the present invention.
(B) is a side view thereof. FIG. 2A shows the first embodiment of the present invention. As shown in FIG. 1, the first ruler A includes a first straight line edge 2 having a scale 1, a second straight line edge 3 extending directly in each direction from an end of the first straight line edge 2, and a first straight line edge 3 thereof. A third curved edge 4 which is curved from the end of the straight edge 3 of the second curved line and extends parallel to the first straight edge 2, and a short length which extends from that end toward the other end of the first straight edge 2. Fourth
Of straight edges 5 of. The curved portion of the curved edge 4 forms a cloud ruler. At the end of the first straight edge 2 is provided a degree scale 6 and a short shaft 7 is planted in the center thereof. A plurality of small circular through holes 8 having different diameters of 1 to 7 mm are formed along the first straight edge 2 to form a circular template. It should be noted that if a leveler 23 for a bubble tube is attached to the curved edge 4 as shown by the chain line in FIG. 1 (a), it can be used as a horizontal measuring instrument.

On the second ruler B, a line 9 for angle measurement is provided. The second ruler B is provided with a shaft hole 10 that is fitted to the shaft 7 of the first ruler A so as to rotate, and the ruler A is provided with stoppers 11 and 12 for rotating the same. The ruler B is provided with a hole 19 that fits into the stopper 12. This second ruler B has a first straight edge 14 having a scale 13.
And a slide rail 16 in the form of an arimise having a scale 15 extending in parallel along the first straight edge 14 thereof, and a slider C fitted to slide on the rim of the slide rail 16. A projection 17 for operation is implanted adjacent to the shaft hole 10 and a central needle screw 18 for compass is provided.
The center needle screw 18 is positioned at the zero position of the scale 15 on the center line of the slide rail 16. Since the central needle screw 18 is short, there is no danger.

A screw 20 for fixing the slider C by tightening a U-shaped retainer 22 on the slider C to the second ruler B.
And a through hole 21 for inserting the core of the writing instrument is provided adjacent to the screw 20.

Next, the method of using the present invention will be described in detail. 1) The first straight edge 2 and the second straight edge 3 of the ruler A can be used as a right-angle ruler (L-type ruler), and the protractor scale 6 of the first ruler A can be used as a protractor. It can be used as a template by utilizing the circular through holes 8, 8, .... 2) Moreover, it can be used as a triangle ruler by fixing the angle between the two first rulers A and the second ruler B arbitrarily, and the second ruler B can be rotated with respect to the first ruler A. Thus, it is possible to draw and measure an arbitrary angle by the angle measuring line 9, the division scale 6, and the straight line edge 2 and the straight line edge 14. 3) In addition, the two first rulers A and the second ruler B are separated and the central needle screw 18 is taken out, and the straight edge 3 of the first ruler A is attached to the edge of the straight edge 14 of the second ruler B. Can be used as a parallel ruler to write many parallel lines. 4) With the center needle screw 18 of the second ruler B and the through hole 21 for inserting the core of the writing instrument of the slider C, a circle of arbitrary diameter can be written, and it can be used as a compass.

[0010]

As described above, according to the present invention, there are two simple rulers, a right angle ruler, a triangle ruler, a parallel ruler (L type ruler),
It is effective because it can be used as a protractor, compass, or template with multiple functions.

[Brief description of drawings]

FIG. 1A is a first ruler A according to an embodiment of the present invention.
Only a plan view, and (b) is a side view thereof.

2A is a plan view of only a second ruler B, and FIG. 2B is a side view thereof.

[Explanation of symbols]

 A 1st ruler B 2nd ruler 1 Scale 2 First straight line edge 3 Second straight line edge 6 Degree scale 8 Small circle through hole 13 Scale 14 Straight line edge 15 Scale 16 Slide rail 18 Center needle screw C Slider 20 slider set screw 21 through hole for inserting core of writing instrument

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Claims (3)

[Claims] 1. A first ruler and a second ruler that is detachably connected to the first ruler and rotatably connected to the first ruler.
Ruler has a first straight line edge having a scale and a second straight line edge extending in each direction directly from the end of the first straight line edge, and the second ruler has a first straight line having the scale. Multi-function ruler with edges. 2. The multi-function according to claim 1, wherein the first ruler comprises a degree scale and a plurality of small circular through holes having different diameters to form a circular template and a cloud shape. ruler. 3. The second ruler includes a slide rail having a scale extending in parallel along a first straight edge of the second ruler, and a slider fitted to slide on a sliding groove of the slide rail. , Screw the center needle screw for the compass, the position of this center needle screw is the zero position of the scale on the center line of the slide rail, the screw for fixing the slider and the through hole for inserting the core of the writing instrument on the slider. Multi-function ruler provided.