JPH1111087A - Ruler with withdrawable projection - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a stain of paper due to sliding of a ruler, to facilitate vertical and horizontal movement and also to make the ruler easy to hold by a structure wherein a withdrawable projection moving vertically is provided in a part of a flat surface of the ruler and the main body thereof is made to be lifted after the use. SOLUTION: A cutting 2 is provided in a ruler 1 made of plastic and metal and a semicircular projection 3 is provided in that part. In the ruler which is made of wood or of which the shape and material are reluctant to machining, a recess is provided and a semicircle projection of rubber and sponge is provided therein. The ruler, including a template or the like, of which the main body made of plastic and metal is very thin is provided with the cutting and the projection is provided by bending.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a ruler which is provided with a protrusion which can move up and down freely on a part of a ruler. Prevention of dirt and easy lifting
It is about a ruler.

[0002]

2. Description of the Related Art Conventional rulers are thin and flat, and therefore are difficult to hold when working. In addition, the ruler slides while touching the paper, so that the paper is drawn with a line drawn. It may get dirty. For this reason, there was a function to make a grip by bending a part of the ruler or to make a hole, catch it with a finger, and make it easy to hold, but the shape was large and the appearance was bad, and the handling was not good. In addition, as for the dirt, there was a spill on both sides of the ruler to prevent paper stains caused by the slide of the ruler, but it was not perfect because it could get dirty at places other than the sewage. In addition, although there are structurally complex and expensive drafting equipment that satisfies the functions described above, there is no simple ruler with a simple structure, and there is no inexpensive one.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to develop a ruler which has a simple structure, reduces paper stains, and is easy to handle.

[0004]

Means for Solving the Problems Now, the solution will be described with reference to the drawings. (A) A resilient main body 1 made of plastic or metal
Then, a part of cutting process 2 is performed, and a semi-circular projection 3
Is provided. Fig. 1.2 (b) A partially concave portion 5 is formed on a wooden body 4 having low elasticity or a material and shape that is difficult to process, and a protrusion 6 is formed with a material such as a semicircular sponge or rubber. You.
Fig. 3.4 (c) The body 7 having a very thin elasticity is partially cut 8 to bend the part so as to have the projection function 9. Figure 5.6 It is as above.

[0005]

Since the present invention has the above-described configuration, when using the same, it will be described with reference to FIG.
When the ruler is pressed from above, the protrusion 13 enters the main body 11 and the paper 14 and the ruler come into close contact with each other. When the hand 10 is released after drawing, the protrusions 13 protrude from the main body 1 due to elasticity, rise up from the paper surface, and the contact surface becomes only the protrusions and is minimized. This makes ruler sliding easier. FIG.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The shape and number of protrusions differ depending on the contents of a ruler. Larger objects have more protrusions, and the position of the protrusions is determined by the balance of the ruler. Very thin body (including templates)
For, adjust the elasticity according to the size of the cutting. When attaching a resilient material such as sponge or rubber to the protrusion, make a recess so that it fits perfectly into it, and make the ruler and paper adhere to each other. For other protrusions, use those that have a contraction function including a spring.

[0007]

As a result, the paper stain after drawing, which is caused by the slide of the ruler, is reduced, and the main body is lifted up from the used paper. It is a very functional thing. The design is smart, it's simple, and it's simple and inexpensive to design.

[Brief description of the drawings]

FIG. 1 is a plan view of a plastic and metal ruler of the present invention.

FIG. 2 is a side view of the ruler of the present invention made of plastic and metal.

FIG. 3 is a plan view of a ruler of the present invention made of wood or a shape and material that is difficult to process.

FIG. 4 is a side sectional view of the ruler of the present invention made of wood or a shape and material that is difficult to process.

FIG. 5 is a plan view of a ruler according to the present invention, which is made of a material such as plastic or metal and has a very thin main body.

FIG. 6 is a side sectional view of the ruler of the present invention made of a material such as plastic and having a very thin main body.

FIG. 7 is a diagram showing a use state of the ruler of the present invention.

[Explanation of symbols]

1. Resilient ruler body made of plastic and metal, 2. Cutting process of 1, 3. Semi-circular projection 4, Ruler body of less elastic wooden or hard-to-work shape and material 5, 5 concave Processing 6, ridges of sponge, rubber, etc. 7, Cutting body of ruler body 8, 7 with very thin body 9, Protrusion by bending 10, Working hand 11, Ruler 12 of the present invention, Cutting 13, Inward / outward protruding function 14, paper

Claims (4)

[Claims] 1. A ruler having a ruler provided on a part of a plane of the ruler so as to move up and down freely. 2. The ruler according to claim 1, wherein the elastic member made of plastic or metal is subjected to cutting 2, and a part thereof is provided with a protrusion 3. 3. The method according to claim 1, wherein a concave portion 5 is provided in a wooden material having a low elasticity or a shape and a material which are difficult to process, and a semicircular sponge or a rubber protrusion 6 is provided therein. ruler. 4. The thin material of the main body is partially cut 8
The ruler according to claim 1, wherein the convex portion 9 is provided by performing the step of bending.