KR102159392B1 - Protractor of assembly type - Google Patents

Abstract

The present invention relates to an assembly-type protractor, and more specifically, to a protractor that allows to easily find the reference line of 0° and easily distinguish between acute angles and obtuse angles with only the protractor, and is optimized to recognize and measure an angle of more than 180° through the assembly of 90° basic protractors. The 360° assembly-type protractor is equipped with creativity, ease of learning, and practicality differentiated from existing protractors. According to an embodiment, the assembly-type protractor is separated by a predetermined angle unit based on 360°, and includes a plurality of protractor units capable of mutual assembly by having at least one of a physical detachment means and a magnetic detachment unit, wherein the protractor unit is divided into sector-shaped first to fourth protractor units separated in units of 90°, and is formed into a circle shape capable of measuring an angle of 360° when assembled.

Description

Assembly-type protractor{PROTRACTOR OF ASSEMBLY TYPE}

An embodiment of the present invention relates to an assembled protractor.

In general, a protractor measures the angle formed between one end point of a predetermined reference line and a specific point in order to achieve an angle by using an angle scale displayed by uniformly dividing 180° on a curved portion of a thin plate having a semicircular shape. Used.

In this case, the angle is simply checked by measuring how many degrees, but in many cases, the angle formed between the reference line and the specific point is determined by connecting one end point of the reference line with a specific point measured to form the desired angle. Indicate.

Like this, although a general protractor is a good teaching tool that makes it easy to know the angle, measure the angle, and draw the angle, it is difficult to find the reference line of 0° to measure the angle, it is difficult to read the angle, and it is difficult to read the angle. The disadvantage is that it is difficult to measure the angle.

Registered Patent Publication No. 10-1377365 (Registration date: March 17, 2014) Registered Patent Publication No. 10-1527435 (Registration date: June 12, 2015)

In the embodiment of the present invention, it can be said that it is very easy to find a reference line of 0°, and it is possible to easily distinguish between an acute angle and an obtuse angle with only a protractor, and it can be said that it is optimized to recognize and measure an angle of 180° or more through assembly of a 90° basic protractor. have. This 360° assembly-type protractor provides an assembly-type protractor with creativity, ease of learning, and practicality differentiated from conventional protractors.

The assembly-type protractor according to an embodiment of the present invention includes a plurality of protractor units that are separated by a predetermined angle unit based on 360 degrees, and are mutually assembled by having at least one of a physical detachment means and a magnetic detachment means.

In addition, among the two protractor units, a coupling groove and a coupling protrusion formed on each side of the two protractor units that are in contact with each other and complementarily formed along the length direction of the side portion are further provided so that the protractor unit may be coupled to each other.

In addition, the coupling groove may be formed to be processed in a direction parallel to the protractor unit from a side center of the protractor unit, and the coupling protrusion may be formed to protrude in a direction parallel to the protractor unit from a side center of the protractor unit.

In addition, magnets disposed so as to allow mutual attraction to act on the inner side of the coupling groove and the inner side of the coupling protrusion may be further provided.

In addition, the coupling groove is formed by processing in a direction parallel to the protractor unit from an upper end of the side of the protractor unit, and the coupling protrusion is formed to protrude in a direction parallel to the protractor unit from an upper end of the side of the protractor unit, and A departure prevention groove may be formed inside, and a separation prevention protrusion having a structure complementary to the separation prevention groove may be formed outside the coupling protrusion.

In addition, magnets disposed so as to allow mutual attraction to act on the inner side of the coupling groove and the inner side of the coupling protrusion may be further provided.

In addition, slide grooves and slide protrusions formed on each side of the two protractor units that are in contact with each other during assembly and complementarily formed along the length direction of the side portions may be further provided so that the protractor units may be coupled to each other.

In addition, pairs of the coupling groove and the coupling protrusion may be formed to have different planar shapes to provide assembly regularity of the protractor unit.

In addition, the protractor unit is divided into a sector-shaped first protractor unit, a second protractor unit, a third protractor unit, and a fourth protractor unit divided in units of 90 degrees to form a circle shape capable of measuring 360 degrees when assembled. Can be.

According to the present invention, it is very easy to find a reference line of 0°, and it is possible to easily distinguish between an acute angle and an obtuse angle only with a protractor, and it can be said that it is optimized to recognize and measure an angle of 180° or more through assembly of a 90° basic protractor. Such a 360° assembly-type protractor can provide an assembly-type protractor with creativity, ease of learning, and practicality differentiated from conventional protractors.

1 is a view showing an assembled state of an assembled protractor according to an embodiment of the present invention.
2 and 3 are views showing a state in which the assembled protractor according to an embodiment of the present invention is separated.
4 is a cross-sectional view taken along line II′ shown in FIG. 1.
5 is a cross-sectional view showing a magnet added to the configuration shown in FIG. 4.
FIG. 6 is a cross-sectional view taken along line II′ shown in FIG. 1 and showing a configuration of a type different from that shown in FIG. 4.
7 is a cross-sectional view showing a magnet added to the configuration shown in FIG. 6.
8 is a view showing that it is not easy to engage with a coupling groove in a state in which the coupling protrusion according to an embodiment of the present invention is damaged.
9 is a view showing a method of combining the protractor unit through a slide groove and a slide protrusion after completely removing the coupling protrusion in the case shown in FIG. 8.
10 is a cross-sectional view taken along line II-II' shown in FIG. 9;
11 is a view showing a storage method of the assembled protractor according to an embodiment of the present invention.

The terms used in the present specification will be briefly described, and the present invention will be described in detail.

The terms used in the present invention have been selected from general terms that are currently widely used while considering functions in the present invention, but this may vary depending on the intention or precedent of a technician working in the field, the emergence of new technologies, and the like. In addition, in certain cases, there are terms arbitrarily selected by the applicant, and in this case, the meaning of the terms will be described in detail in the description of the corresponding invention. Therefore, the terms used in the present invention should be defined based on the meaning of the term and the overall contents of the present invention, not a simple name of the term.

When a part of the specification is said to "include" a certain component, it means that other components may be further included rather than excluding other components unless otherwise stated. In addition, terms such as "... unit" and "module" described in the specification mean a unit that processes at least one function or operation, which may be implemented as hardware or software or a combination of hardware and software. .

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art may easily implement the present invention. However, the present invention may be implemented in various different forms and is not limited to the embodiments described herein. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and similar reference numerals are assigned to similar parts throughout the specification.

1 is a view showing an assembled state of an assembled protractor according to an embodiment of the present invention, FIGS. 2 and 3 are views showing a state in which the assembled protractor according to an embodiment of the present invention is separated, and FIG. 4 is 1 is a cross-sectional view taken along line I-I' shown in FIG. 1, and FIG. 5 is a cross-sectional view showing a magnet added to the configuration shown in FIG. 4, and FIG. 6 is a cross-sectional view taken along line I-I' shown in FIG. As a cut-away cross-sectional view, it is a cross-sectional view showing a configuration of a type different from the configuration shown in FIG. 4, and FIG. 7 is a cross-sectional view showing a magnet added to the configuration shown in FIG. 6, and FIG. 8 is a combination according to an embodiment of the present invention. It is a view showing that it is not easy to combine with the coupling groove in a state where the protrusion is damaged, and FIG. 9 shows a method of combining the protractor unit through the slide groove and the slide protrusion after completely removing the coupling protrusion in the case shown in FIG. FIG. 10 is a cross-sectional view taken along line II-II' shown in FIG. 9, and FIG. 11 is a view showing a storage method of an assembled protractor according to an embodiment of the present invention.

1 and 2, the assembled protractor 1000 according to an embodiment of the present invention is separated by a predetermined angle unit based on 360 degrees, and includes at least one of a physical detachment means and a magnetic detachment It includes a plurality of protractor units 100 that can be assembled.

The protractor unit 100 is divided into a sector-shaped first protractor unit 110, a second protractor unit 120, a third protractor unit 130, and a fourth protractor unit 140 divided by 90 degrees. If the first to fourth protractor units 110, 120, 130, and 140 are all assembled, they may be formed in a circle shape capable of measuring 360 degrees, but in this embodiment, the first to fourth protractor units 110, 120, 130, and 140) are not limited thereto, and this is only an example, and a protractor unit consisting of a size divided into an angle smaller than 90 degrees or a larger angle unit and the number accordingly may be configured. However, hereinafter, in order to help understanding the invention, the protractor unit 100 will be described with the first to fourth protractor units 110, 120, 130, and 140 as representative examples.

The protractor unit 100 may be assembled in the order of a first protractor unit 110, a second protractor unit 120, a third protractor unit 130, and a fourth protractor unit 140 in units of 90 degrees. That is, as shown in FIG. 2, the second protractor unit 120 is assembled to the first protractor unit 110 (①), and the third protractor unit 130 is assembled to the second protractor unit 120 ( ②), at the same time as the fourth protractor unit 140 is assembled to the third protractor unit 130 (③), and the fourth protractor unit 140 is assembled (④) with the first protractor unit 120 as shown in FIG. It can be assembled with a 360 degree protractor in a circle shape as shown.

The first protractor unit 110, the second protractor unit 120, the third protractor unit 130, and the fourth protractor unit 140 are formed on each side of the two protractor units that are in contact with each other during assembly, and The first protractor unit 110, the second protractor unit 120, the third protractor unit 130 and the fourth are further provided with a coupling groove 200 and a coupling protrusion 300 formed complementarily along the longitudinal direction of the The protractor unit 140 may be coupled to each other.

More specifically, as shown in FIG. 2, the coupling groove 200 and the coupling protrusion 300 are the first side portion 111 of the first protractor unit 110 and the second protractor unit 120. It may be formed on the second side portion 121, the third side portion 131 of the third protractor unit 130, and the fourth side portion 141 of the fourth protractor unit 140, respectively.

The coupling groove 200 may include a first coupling groove 210, a second coupling groove 220, a third coupling groove 230, and a third coupling groove 240, and the coupling protrusion 300 A first coupling protrusion 310, a second coupling protrusion 320, a third coupling protrusion 330, and a fourth coupling protrusion 340 may be included.

The first coupling groove 210 and the first coupling protrusion 310 form a pair, the second coupling groove 220 and the second coupling protrusion 320 form a pair, and the third coupling groove 230 And the third coupling protrusion 320 may form a pair, and the fourth coupling groove 240 and the fourth coupling protrusion 320 may form a pair, and each pair is formed to have a different planar shape, The groove and the protrusion may be divided into two protractor units to be combined one by one.

For example, as shown in FIG. 2, the first coupling groove 210 formed in the first protractor unit 110 and the first coupling protrusion 310 formed in the second protractor unit 120 are coupled to each other, 2 The second coupling groove 220 formed in the protractor unit 120 and the third coupling protrusion 330 formed in the third protractor unit 130 are mutually coupled, and a third coupling protrusion formed in the third protractor unit 130 (320) and the third coupling groove 230 formed in the third protractor unit 130 are mutually coupled, and the fourth coupling protrusion 340 formed in the fourth protractor unit 140 and the first protractor unit 110 The formed fourth coupling grooves 240 may be coupled to each other.

As described above, the coupling groove 200 and the coupling protrusion 300 are formed to have different planar shapes, for example, the first coupling groove 210 and the first coupling protrusion 310 are the same as the semicircular shape. Is formed in a shape, the second coupling groove 220 and the second coupling protrusion 320 are formed in the same shape as a rectangular shape, and the third coupling groove 230 and the third coupling protrusion 330 are the same as a trapezoidal shape. It is formed in a shape, the fourth coupling groove 240 and the fourth coupling protrusion 340 may be formed in the same shape as a triangular shape. In this way, since the first to fourth protractor units 110, 120, 130, and 140 have to be assembled in a certain order as the shapes are different for each pair of grooves and protrusions, the assembly regularity of the protractor unit 100 I can.

Meanwhile, grooves and protrusions having the same shape may be formed together on one side of the protractor unit. In this case, grooves and protrusions having the same shape may be complementarily formed in other protractor units to be coupled thereto.

For example, as shown in FIG. 3, a first coupling groove 210 and a first coupling protrusion 310 are formed in the first side 111 of the first protractor unit 110, and the second protractor unit ( The first coupling groove 210 and the first coupling protrusion 310 are formed in the second side portion 121 of the 120) so that the first coupling groove 210 of the first protractor unit 110 is formed in the second protractor unit 120 The first coupling protrusion 310 of the first protractor unit 110 may be coupled to the first coupling groove 210 of the second protractor unit 120 at the same time as being coupled with the first coupling protrusion 310 of ).

In addition, a second coupling groove 220 and a second coupling protrusion 320 are formed in the second side portion 121 of the second protractor unit 120, and the third side portion 131 of the third protractor unit 130 The second coupling groove 220 and the second coupling protrusion 320 are formed in the second coupling groove 220 of the second protractor unit 120 to the second coupling protrusion 320 of the third protractor unit 130 At the same time as being combined with the second coupling protrusion 320 of the second protractor unit 120 may be coupled to the second coupling groove 220 of the third protractor unit 130.

In addition, a third coupling groove 230 and a third coupling protrusion 330 are formed in the third side portion 131 of the third protractor unit 130, and the third side portion 131 of the fourth protractor unit 140 The third coupling groove 230 and the third coupling protrusion 330 are formed in the third coupling groove 230 of the third protractor unit 130 so that the third coupling protrusion 330 of the fourth protractor unit 140 At the same time as being combined with the third coupling protrusion 330 of the third protractor unit 130 may be coupled to the third coupling groove 230 of the fourth protractor unit 140.

In this case, the fourth coupling groove 240 and the fourth coupling protrusion 340 formed in the fourth side portion 141 of the fourth protractor unit 140 in the same manner are the first side portions 111 of the first protractor unit 110. ) May be coupled to the fourth coupling protrusion 340 and the fourth coupling groove 240.

Such a coupling groove 200 is formed in a direction parallel to the protractor unit 100 from the center of the side of the protractor unit 100, and the coupling protrusion 300 is formed from the center of the side of the protractor unit 100. ) May be formed to protrude in a direction parallel to.

For example, as shown in FIG. 4, the first coupling groove 210 is formed by being processed in a direction parallel to the first protractor unit 110 toward the side center of the first protractor unit 110, and the first The coupling protrusion 310 may be formed in a structure complementary to the first coupling groove 210 and may be inserted into the first coupling groove 210.

At this time, the assembly-type protractor 1000 may further include magnets 400 disposed to interact with each other in the inner side of the coupling groove 200 and the inner side of the coupling protrusion 300, respectively.

For example, as shown in FIG. 5, a groove magnet 410 is embedded in the first coupling groove 210, and a protruding magnet 420 is formed in the first coupling protrusion 310 to form a first When the coupling groove 210 and the first coupling protrusion 310 are coupled, the groove magnet 410 and the protrusion magnet 420 are arranged so that mutual attraction acts, so that the first coupling groove 210 and the first coupling protrusion ( 310) Can increase the cohesion of the liver.

On the other hand, the coupling groove 200 and the coupling protrusion 300 may be formed in a type different from the above-described type, more specifically, the coupling groove 200 is the protractor unit 100 from the upper side of the protractor unit 100 ) And formed in a parallel direction, and the coupling protrusion 300 may be formed to protrude in a direction parallel to the protractor unit from the upper end of the side of the protractor unit 100, and at this time, a separation prevention groove 211 inside the coupling groove 200 ) Is formed, and a departure prevention protrusion 311 having a complementary structure to the separation prevention groove 211 may be formed outside the coupling protrusion 300.

For example, the first coupling groove 210 is formed in a direction parallel to the first protractor unit 110 from the top of the side of the first protractor unit 110 to form a step shape with an open top, and the first coupling The protrusion 310 may be formed to protrude in a direction parallel to the second protractor unit 120 from the upper end of the side of the second protractor unit 120, and at this time, a separation prevention groove 211 inside the first coupling groove 210 Is formed, and a departure prevention protrusion 311 having a complementary structure to the separation prevention groove 211 may be formed outside the first coupling protrusion 310.

At this time, the assembly-type protractor 1000 may further include magnets 400 disposed to interact with each other in the inner side of the coupling groove 200 and the inner side of the coupling protrusion 300, respectively.

For example, as shown in FIG. 7, a groove magnet 410 is embedded in the first coupling groove 210, and a protruding magnet 420 is formed inside the first coupling protrusion 310 to form a first When the coupling groove 210 and the first coupling protrusion 310 are coupled, the groove magnet 410 and the protrusion magnet 420 are arranged so that mutual attraction acts, so that the first coupling groove 210 and the first coupling protrusion ( 310) Can increase the cohesion of the liver.

On the other hand, the coupling protrusion 300 of the present embodiment may be damaged during use due to the protruding structure. In this case, even if it is inserted into the coupling groove 200 as shown in FIG. 8, coupling between the protractor units 100 is easy. I can't. In this case, as shown in FIG. 9, the coupling protrusion 300 is removed, and the protractor unit 100 is formed using the slide groove 500 and the slide protrusion 600 formed along each side of the protractor unit 100. Can be combined.

Referring to the first and second protractor units 110 and 120 as an example, the slide groove 500 and the slide protrusion 600 are, as shown in FIGS. 9 and 10, the first and second protractor units 110 The first and second protractor units 110 are formed on each of the side portions that are in contact with each other during assembly of, 120), and are complementarily formed along the length direction of the side, so that the slide protrusion 600 is inserted along the slide groove 500, 120) can be combined with each other.

This assembly-type protractor 1000 is divided into, for example, first to fourth protractor units 110, 120, 130, and 140, as shown in FIG. The fourth protractor units 110, 120, 130, and 140 are stacked and stored in the case 10, making it easy to carry and store.

What has been described above is only one embodiment for implementing the assembly-type protractor according to the present invention, and the present invention is not limited to the above embodiment, and deviates from the gist of the present invention as claimed in the following claims. Without this, anyone of ordinary skill in the field to which the present invention pertains will have the technical spirit of the present invention to the extent that various changes can be implemented.

1000: buildable protractor
100: protractor unit
110: first protractor unit
111: first side
120: second protractor unit
121: second side
130: third protractor unit
131: third side
140: fourth protractor unit
141: fourth side
200: mating groove
210: first coupling groove
211: departure prevention groove
220: second coupling groove
230: third coupling groove
240: fourth coupling groove
300: coupling protrusion
310: first coupling protrusion
311: departure prevention projection
320: second coupling protrusion
330: third coupling protrusion
340: fourth coupling protrusion
400: magnet
410: home magnet
420: protruding magnet
500: slide groove
600: slide protrusion

Claims (9)

It includes a plurality of protractor units that are separated by a predetermined angle unit based on 360 degrees and are mutually assembled by having at least one of a physical detachment means and a magnetic detachment means,
Among the two protractor units, a coupling groove and a coupling protrusion formed on each side of the two protractor units in contact with each other and complementarily formed along the length direction of the side portion are further provided so that the protractor unit is mutually coupled,
Pairs of the coupling groove and the coupling protrusion are formed to have different planar shapes to provide assembly regularity of the protractor unit,
The protractor unit,
Assembled type, characterized in that it is divided into a sector-shaped first protractor unit, a second protractor unit, a third protractor unit, and a fourth protractor unit separated by 90 degrees, and is formed in a circle shape capable of measuring 360 degrees when assembled. Protractor.
delete The method of claim 1,
The coupling groove is formed in a direction parallel to the protractor unit from the center of the side of the protractor unit,
The coupling protrusion is assembled protractor, characterized in that protruding from the center of the side of the protractor unit in a direction parallel to the protractor unit.
The method of claim 3,
An assembly-type protractor, characterized in that further provided with magnets disposed so as to allow mutual attraction to act on the inner side of the coupling groove and the inner side of the coupling protrusion.
The method of claim 1,
The coupling groove is formed in a direction parallel to the protractor unit from the upper end of the side of the protractor unit,
The coupling protrusion is formed to protrude in a direction parallel to the protractor unit from the upper end of the side of the protractor unit,
A departure preventing groove is formed inside the coupling groove,
An assembly-type protractor, characterized in that a separation prevention protrusion having a structure complementary to the separation prevention groove is formed outside the coupling protrusion.
The method of claim 5,
An assembly-type protractor, characterized in that further provided with magnets disposed so as to allow mutual attraction to act on the inner side of the coupling groove and the inner side of the coupling protrusion.
The method of claim 1,
Among the two protractor units, a slide groove and a slide protrusion formed on each side of the two protractor units that are in contact with each other during assembly and complementarily formed along the length direction of the side are further provided, and the protractor units are coupled to each other.
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