KR101177448B1

KR101177448B1 - Compass

Info

Publication number: KR101177448B1
Application number: KR20100056760A
Authority: KR
Inventors: 민락용
Original assignee: 민락용
Priority date: 2010-06-15
Filing date: 2010-06-15
Publication date: 2012-08-30
Also published as: KR20110136631A

Abstract

Start the compass. The present invention includes: a first leg portion to which writing instruments are fixed; and a second leg portion hinged to the first leg portion, to which an awl shim is mounted; and a handle portion to rotate the first leg portion with respect to the second leg portion; It includes, wherein the space is formed in the second leg portion, the awl core is formed so as to protrude out through the insertion hole formed at the end of the second leg portion selectively from the inner space of the second leg portion by the pressing means, at least one When the compass is not used by the pressing means provided in the leg portion of the leg portion, the pricking phenomenon can be prevented by placing the awl core in the inner space of the leg portion.

Description

Compass

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a compass, and more particularly, to a compass which prevents a puncture during use or storage.

The compass is usually used to draw a circle or arc while narrowing and widening two legs. Such a compass is equipped with a sharp awl shim at the end of at least one leg portion of the two leg portions, so that the other leg portion can be rotated based on this to draw a desired circle or arc. However, since the end of the awl seam is always exposed to the outside of the compass, various threats such as the user may be stuck in a sharp part during operation, or may injure others around due to the carelessness of the user. Is present.

It is a main object of the present invention to provide a compass in which a pressing means is provided in at least one leg portion to prevent the phenomenon of being stuck during use or storage.

Compass according to an aspect of the present invention,

A first leg portion is fixed writing instruments; And,

A second leg portion hinged to the first leg portion and to which an awl shim is mounted; and

And a handle part for rotating the first leg part with respect to the second leg part.

A space is formed inside the second leg portion,

The awl shim is formed to protrude outwardly through an insertion hole formed at an end of the second leg portion selectively from the inner space of the second leg portion by a pressing means.

In addition, the pressing means,

A core portion coupled to the awl core, the core portion lifting and lowering from an inner space of the second leg portion;

Elastic bias means provided at one end of the core portion to elastically support movement of the core portion; And

It is installed on the other end of the core portion, the push button for pressing the core; includes.

In addition, the core portion is located along the longitudinal direction of the second leg portion in the inner space of the second leg portion,

One end portion of the core portion is coupled to the awl shim protruding to the outside through the insertion hole of the second leg portion,

At the other end of the core portion, the push button is installed to press the core portion.

Furthermore, an annular protrusion is formed at the rear of the elastic bias means along the outer surface of the core portion.

The inner surface of the second leg portion corresponding to the protrusion is provided with a jaw portion in contact with the protrusion is supported.

Furthermore, the push button is

A pressing part which is exerted from the outside and moves up and down through a pressing hole formed at the other end of the second leg part; and,

A pressing part which is formed at an end of the pressing part and presses an end of the core part;

And a plurality of protrusions bent in an opposite direction from an end of the pressing portion and formed on a surface opposite to a surface facing the pressing portion.

The protrusions may be selectively fastened to a plurality of fastening holes respectively formed in the corresponding body part, or may be simultaneously fastened to one fastening hole when the pressing part is pressed.

In addition, the push button,

Pressing portion is applied from the outside, the receiving groove is formed in the inner space of the second leg portion is formed to receive the end of the core portion;

And a sliding part integrally extending from the pressing part and protruding to an outer surface of the body part through a sliding groove formed in the body part.

A locking jaw portion is formed below the sliding groove so that the sliding portion is caught when descending.

As described above, the compass of the present invention can be prevented from being stabbed by placing the awl shim in the inner space of the leg portion when the compass is not used by the pressing means provided in the at least one leg portion.

Secondly, as the awl shim is stored in the inner space in the leg portion, it prevents damage to a writing material or a storage material such as a bag in which the leg portion is stored.

Third, the operation method of the compass is simplified, it can be easily used without special training.

1 is a perspective view showing a compass according to an embodiment of the present invention,
2 is a cross-sectional view showing a state before the pressing means of the compass of FIG.
3 is a cross-sectional view showing a state after the pressing means of the compass of FIG.
4 is a cross-sectional view showing a state before the pressing means of the compass according to another embodiment of the present invention,
5 is a sectional view showing a state after the pressing means of the compass of FIG. 4 is operated.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 illustrates a compass 100 according to an embodiment of the present invention.

Referring to the drawings, the compass 100 includes a first leg portion 110, a second leg portion 120, a hinge portion 140, the handle portion 160.

A fixing part 130 to which the writing instrument 250 is fixed is provided at one end side wall of the first leg part 110. The fixing part 130 is a cylindrical insertion part 131 which provides a space into which the writing instrument 250 is inserted, and screwed to fix it after the writing instrument 250 is inserted into the insertion portion 131. It includes a screw portion 132 to be.

The second leg portion 120 is hinged to the first leg portion 110. An awl shim 170 is installed at one end of the second leg 120. The hinge part 140 adjusts the rotation angle of the second leg part 120 with respect to the first leg part 110 between the other end of the first leg part 110 and the other end of the second leg part 120. Is hinged.

Under the hinge portion 140, the angle of rotation of the second leg portion 120 relative to the first leg portion 110 hinged to the lower angle, or vice versa, in order to increase the rotation angle adjustment unit 150 It is installed. The rotation angle adjusting unit 150 is installed on the first leg portion 110, the screw portion 151 installed in the horizontal direction through the second leg portion 120 and the outer peripheral surface of the screw portion 151 And a rotation screw part 152 that adjusts the rotation angle of the first leg part 110 and the second leg part 120 by rotating from side to side.

The upper portion of the hinge portion 140 is provided with a handle portion 160 for supporting the first leg portion 110 to rotate relative to the second leg portion 120. The handle 160 is fixed to the other end of the first leg portion 110 and the other end of the second leg portion 120 at the same time, the awl core 170 of the second leg portion 120 It is possible to rotate the first leg portion 110 as a reference point.

Here, the second leg portion 110 is provided with a pressing means so as to selectively project the awl shim 170 from the inside of the second leg portion 120 to the outside.

This will be described in more detail as follows.

2 shows a state before the pressing means 200 of the compass 100 of FIG. 1 is operated, and FIG. 3 shows a state after the pressing means 200 of the compass 100 of FIG. 1 has been operated. It is shown.

2 and 3, the second leg portion 120 has a body portion 122 in which an inner space 121 is formed. The second leg portion 120 is a hollow rectangular pillar, a hollow circular pillar, but is not necessarily limited thereto. An insertion hole 124 is formed in one end 123 of the body portion 122. The awl shim 170 may protrude from the inside of the second leg portion 120 to the outside through the insertion hole 124. To this end, the inner space 121 is communicable with respect to the insertion hole 124.

The pressing means 200 is a core portion 210 coupled to the awl core 170, the elastic bias means 220 provided on the outer surface of the core portion 210, the pressing portion provided on the other end of the core portion 210 Button 230.

The core portion 210 is disposed through the internal space 121 formed in the body portion 122. The core portion 210 is positioned in the longitudinal direction of the body portion 122. The awl core 170 is coupled to one end of the core portion 210. The awl shim 170 may be separately attached to an end of the core 210, but is preferably integrally formed with respect to the core 210.

The elastic bias means 220 is provided on the outer surface of the core portion 210 adjacent to the awl core 141. The elastic bias means 220 is preferably made of a material having an elastic force, for example, a spring to elastically support the core portion 210.

An annular protrusion 211 is provided at the rear of the elastic biasing unit 220 along the outer surface of the core portion 210. A jaw portion 125 is formed on an inner surface of the body portion 122 corresponding to the protrusion portion 211. The lower surface of the protrusion 211 is elastically in contact with the upper surface of the jaw portion 125 when the elastic bias means 220 is released.

Push buttons 230 are installed at the other end of the core portion 210. The push button 230 is installed to selectively press the other end of the core portion 210 so that the core portion 210 can move up and down through the internal space 121 of the body portion 122.

To this end, the push button 230 is provided with a pressing portion 231 to which pressure is applied from the outside. The pressing portion 231 is a cylindrical shape, but is not limited thereto. The pressing portion 231 is capable of lifting and lowering through the pressing hole 126 formed at the other end of the body portion 122 when pressed.

The pressing portion 232 is formed at the end of the pressing portion 231 to be located in the internal space 121 of the body portion 122. The pressing portion 232 is in the shape of a strip and extends integrally from the pressing portion 231. The pressing unit 232 may press the other end of the core portion 210 when the end portion 232a presses the pressing portion 231.

The end portion 232a of the pressing portion 232 is formed with a fastening portion 233 which is bent in the opposite direction and extends in the direction in which the pressing portion 231 is installed. The fastening part 233 is integrally formed from the pressing part 232. The fastening part 233 is connected to each other with respect to the pressing part 232, and is spaced apart from each other along a longitudinal direction. The fastening portion 233 is in the shape of a strip, and a plurality of protrusions 233a protrude from the surface opposite to the pressing surface 232.

The protrusion 233a is formed at intervals along the longitudinal direction of the fastening part 233. A plurality of fastening holes 127 into which the plurality of protrusions 233a are selectively inserted are formed in the body 122 corresponding to the protrusion 233a. The fastening holes 127 are formed at intervals along the length direction of the body portion 122.

The plurality of protrusions 233a may be fastened to the plurality of fastening holes 127, respectively, or may be simultaneously fastened to one fastening hole 127 when pressing the pressing part 231. To this end, the front surface of the protrusion 233a is tapered, and the fastening portion 233 having the protrusion 233a has a predetermined elastic force when the pressing portion 231 presses the front surface of the protrusion 233a. The fastening part 233 having the protrusion 233a by being caught by the body part 122 having the fastening hole 127 may be retracted into the internal space 121 of the body part 122.

Alternatively, the push button 230 presses the core portion 210 coupled to the awl shim 170 so that the awl shim 170 is inserted into the insertion hole 124 from the inner space 121 of the body portion 122. Any structure that can selectively protrude to the outside through) is not limited to any one structure.

For example, by installing a push button on the outer wall of the body portion 122, by pressing in the direction in which the body portion 122 is located to raise or lower the core portion 210, or the side wall of the body portion 122 By installing a push button, the core portion 210 may be moved up and down in a sliding manner.

The operation of the pressing means 200 of the compass 100 having the above structure will be described with reference to FIGS. 2 and 3 as follows.

When using the compass 100, the pressing portion 231 provided in the push button 230 is pressed from the outside. Accordingly, the pressing portion 231 is lowered in the downward direction of the body portion 122 through the pressing hole 126.

When the pressing part 231 is lowered, the pressing part 232 integrally extending from the pressing part 231 is also lowered in the downward direction of the body part 122. The lower end portion 232a of the pressing portion 232 presses the other end of the core portion 210.

Accordingly, the core portion 210 also descends downward of the body portion 122. When the core portion 210 is lowered, the awl core 170 installed at the end of the core portion 210 is exposed to the outside through the insertion hole 124 formed in one end 123 of the body portion 122. do.

At this time, when pressing the pressing part 231, the protrusion 233a of the fastening part 233 is caught in the front surface of the body portion 122 is formed with the fastening hole 127, the internal space of the body portion 122 After retreating to 121, the plurality of protrusions 233a are positioned together at one fastening hole 127 located in front of the plurality of fastening holes 127 as the pressing part 232 advances. At the same time, the elastic bias means 220 wound on the outer surface of one end of the core portion 210 controls the length of the awl core 170 is exposed to the outside by elastically supporting the awl core 170. Done.

On the contrary, after the work of the compass 100 is completed, when the awl shim 170 is positioned in the internal space 121 in the body 122, the pressing part 231 is pressed again from the outside. When the pressing part 231 is pressed, the plurality of protrusions 233a of the fastening part 233 are retracted into the internal space 121. At the same time, the resilient biasing means 220 wound on the outer surface of one end of the core portion 210 is released from the elastic support of the awl core 170 so that the core portion 210 retreats backward. do.

When the core portion 210 is retracted, the bottom surface of the protrusion portion 211 formed along the outer surface of the core portion 210 limits the movement distance of the core portion 210 by contacting the upper surface of the jaw portion 125. Done. At the same time, the plurality of protrusions 233a are fastened to the plurality of fastening holes 127 formed to be spaced apart from the corresponding body portion 121 to set their positions.

4 shows a state before the pressing means 500 of the compass 400 according to another embodiment of the present invention, Figure 5 shows the pressing means 500 of the compass 400 of FIG. The state after it is shown.

Here, the same reference numerals as in the above-described drawings indicate the same members having the same function, and will be described only for the main features of the present embodiment.

4 and 5, the compass 400 includes a first leg part 110 and a second leg part 420.

The second leg part 420 has a body part 422 having an internal space 421 formed therein. Tip portion 423 is screwed to the end of the body portion 422. The tip portion 423 has an insertion hole 424 is formed. The insertion hole 424 may communicate with the internal space 421. The inner space 421 is provided with a pressing means 500 which can selectively project the awl shim 470 from the inside of the second leg portion 420 to the outside.

The pressing means 500 is a core portion 510 coupled with the awl core 470, the elastic bias means 520 provided on the outer surface of the core portion 510, and the pressing portion provided on the other end of the core portion 510 Button 530.

The core 510 is disposed through an internal space 421 formed in the body 422. The awl shim 470 is coupled to one end of the core 510.

The elastic bias means 520 is provided on the outer surface of the core portion 510 adjacent to the awl core 470. The elastic bias means 520 is preferably made of a spring.

A protrusion 511 is provided at the rear of the elastic biasing means 520 along the outer surface of the core 510. A jaw portion 425 is formed on an inner surface of the body portion 422 corresponding to the protrusion portion 511. The lower surface of the protrusion 511 elastically contacts the upper surface of the jaw portion 425 when the elastic biasing means 520 is released.

The other end of the core portion 510 is provided with a push button 530. The push button 530 selectively presses the other end of the core 510 to allow the core 510 to move up and down through the internal space 421.

To this end, the push button 530 is provided with a pressing portion 531 to which pressure is applied from the outside. An accommodating groove 532 is formed at an end of the pressing part 531 to accommodate an end of the core 510. The pressing portion 531 is formed with a sliding portion 533 integrally extending in the horizontal direction therefrom. The sliding part 533 protrudes from the inner space 421 to the outer surface of the body part 422 through a sliding groove 427 formed in the body part 422. A locking jaw portion 428 is formed below the sliding groove 427 so that the sliding portion 533 is caught when descending.

When using the campus 400 having the configuration described above, the sliding portion 533 is pressed downward. Accordingly, the sliding part 533 is lowered through the sliding groove 427.

When the sliding part 533 is lowered, the core part 510 supported by the pressing part 531 is also lowered in the downward direction of the body part 422. When the core 510 is lowered, the awl core 470 installed at the end of the core 510 protrudes to the outside through the insertion hole 424 formed in the tip 423. In this case, when the sliding part 533 is caught by the locking jaw portion 428 to the side, the awl shim 470 maintains the state exposed to the outside of the body portion 422.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

100 ... compass 110 ... first leg
120 second leg part 121 body part
125 Chin 130
140 ... Hinge 150 ... Spacing adjustment
170 ... Aug core 200 ... Push means
210 ... deep 220 ... elastic bias means
221 Protrusion 230 Push Button
231 Pushing section 232 Pressing section
233 ... 250 fasteners
500 .... Press means

Claims

A first leg portion is fixed writing instruments; And,
A second leg portion hinged to the first leg portion and to which an awl shim is mounted; and
And a handle part for rotating the first leg part with respect to the second leg part.
A space is formed inside the second leg portion,
And the awl shim is formed so as to protrude outward from the inner space of the second leg portion by means of pressing means through an insertion hole formed at an end of the second leg portion.

The method of claim 1,
The pressing means,
A core portion coupled to the awl core, the core portion lifting and lowering from an inner space of the second leg portion;
Elastic bias means provided at one end of the core portion to elastically support movement of the core portion; And
And a push button installed at the other end of the core portion and pressing the core portion.

The method of claim 2,
The core portion is located along the longitudinal direction of the second leg portion in the inner space of the second leg portion,
One end portion of the core portion is coupled to the awl shim protruding to the outside through the insertion hole of the second leg portion,
Compass, characterized in that the push button is installed on the other end of the core portion to press the core portion.

The method of claim 2,
At the rear of the elastic bias means is formed an annular projection along the outer surface of the core portion,
Compass, characterized in that the jaw portion is formed in the inner surface of the second leg portion corresponding to the protrusion is supported in contact with the protrusion.

The method of claim 2,
The push button,
A pressing part which is exerted from the outside and moves up and down through a pressing hole formed at the other end of the second leg part; and,
A pressing part which is formed at an end of the pressing part and presses an end of the core part;
And a plurality of protrusions bent in an opposite direction from an end of the pressing portion and formed on a surface opposite to a surface facing the pressing portion.
The protrusions are selectively fastened to the plurality of fastening holes respectively formed in the body portion corresponding thereto, or the compass characterized in that is installed to be fastened to one fastening hole at the same time when pressing the pressing portion.

The method of claim 2,
The push button,
Pressing portion is applied from the outside, the receiving portion is formed in the inner space formed in the body portion of the second leg portion is formed receiving groove for receiving the end of the core portion;
And a sliding part integrally extending from the pressing part and protruding to an outer surface of the body part through a sliding groove formed in the body part.
Compass, characterized in that the locking jaw portion is formed below the sliding groove to be caught when the sliding portion is lowered.