KR100943637B1 - Detachable compass - Google Patents

Abstract

PURPOSE: A removable compass is provided to easily adjust numerical values by performing functions of the compass when a pair of the removable compasses are installed on a measuring ruler, and to improve portability and stability of the removable compass. CONSTITUTION: A removable compass comprises the following: a measuring ruler(1) used for adjusting the length; a first compass main body(110a) with writing instruments and attached on one side of the measuring ruler; a second compass main body(110b) with a compass needle portion(300) and separated from the first compass main body with the constant distance on one side of the measuring ruler; a first removing button(120) attaching and detaching the measuring ruler; a second removing button(130) attaching and detaching the writing instrument and the compass needle portion; a fitting groove capable of inserting the measuring ruler on the compass body; and a first penetration hole on which the writing instrument or the compass needle portion is fixed.

Description

Removable Compass {DETACHABLE COMPASS}

The present invention relates to a removable compass, and more particularly, to make the size of the circle small or large according to the length of the measuring instrument installed to enable the function of the compass in a state in which the pair of removable compasses detachably installed on the measuring instrument. It can be used to increase availability and to be easily detached and to increase convenience. Also, the safety device is installed on the rotary support needle to increase the safety. The present invention relates to a removable compass that is configured to be used in a drawing paper or a steel sheet or a slab, etc., thereby increasing its utilization.

In general, a compass is a mechanism used when constructing a circle or the like and has two legs that can freely adjust the gap according to a user's discretion. These compasses are mainly used to draw circles or arcs, and are called as so-called iron, embossed, and embossed.

One of the two legs of the compass serves as a central axis for drawing a circle, and the other one serves as a rotation axis for drawing a circle around the central axis. At this time, the writing axis for drawing a circle or an arc is configured on the rotation axis.

First, an example of a conventional compass 10 that is commonly used with reference to FIG. 1 is as follows.

As shown in the drawing, the conventional compass 10 has a head portion 12 having a rotary knob 11 formed thereon, one end of which is fixed to the head portion 12, and a rotating support 21 on the other end thereof. The center stage 20 is formed, and one end is fixed to the head portion 12, the other end is composed of a rotary table 30 is formed with a writing instrument 31.

The compass 10 configured as described above supports the rotary support guide 21 on the drawing paper, and draws a circle having a desired size by the writing instrument 31 while holding and rotating the rotary knob 11.

And the writing instrument 31 may be used, such as a pencil or a pencil lead as needed, in this case, the fixture 30 is integrally used to fix the pencil or to fix the pencil lead to the swivel table (30). The fixture 32 is configured to be modified in various ways depending on the type of writing instruments used.

In addition, the conventional compass 10 is, as shown in Fig. 1 (a), the interval formed with a screw thread penetrating one side thereof to adjust the distance between the center stage 20 and the rotating table 30 according to the size of the circle to draw The control rod 40 and the adjusting nut 41 is configured to include, or as shown in (b) of Figure 1 (b) is configured in the absence of the adjusting rod 40, which is due to the structure of the head portion 12.

Therefore, the conventional compass 10 is limited to the size of the circle that can be drawn by the length of the center bar 20, the rotating table 30 and the interval adjusting rod 40 is limited to a large circle as the user wants Problems arise that are difficult to construct.

In addition, as shown, the compass 10 is configured in a state in which the rotary support needle 21 formed at the end of the center stage 20 is exposed to the outside. As a result, when a student is carried in a bag or pencil case, it is easy to get stuck and it is very burdensome to carry a compass.

In addition, the compass 10 is used as a child's learning aid, the rotary support 21 used for the compass 10 is always a sharp needle-like shape so as to be easily fixed on the drawing paper of the compass Problems arise when inexperienced users or children are injured in the learning process or in other situations.

In addition, since the compass 10 is fixed to the rotary support 21 by a shaft, it is difficult to draw a circle on a hard object such as a stone plate or a steel plate, which causes a problem in that it is restricted in use.

The present invention is to solve the above problems, it is possible to perform the function of the compass in a state in which the detachable pair of detachable compasses detachably installed on the measurer to easily adjust the numerical value according to the user's desired size An object of the present invention is to provide a detachable compass that enables the construction of a circle.

And it aims at providing the detachable compass which attached the 1st, 2nd detachable button to both ends and was easily detachable by one touch.

In addition, by forming a protective cap of the size that can be wrapped to protect the rotating support needles, such as the rotating support of the compass provided with a protective cap that can prevent injuries in the course of learning or other situations It is an object to provide a removable compass.

In addition, an object of the present invention is to provide a detachable compass configured to be safely and conveniently carried, and to be easily stored and moved, having a compass body storage unit for accommodating and storing the first and second compass bodies separated from the measurer.

In addition, the lower end of the protective cap is further provided with a rotary support friction material that can be rotated on a solid ground to provide a removable compass that can be used both in drawing paper or steel plates or slabs.

In order to achieve the above object, the removable compass according to the present invention includes: a measurer having a length; and a first compass body detachably provided at one side of the measurer and having a writing instrument; and the first compass at one side of the measurer. A second compass body detachably provided at a distance from the body and having a compass needle; and a first detachable button formed at one side of the first and second compass bodies to detach and attach the measurer; And a second detachable button formed on the other side of the first detachable button and detachable from a writing instrument or a compass needle.

The first button elastic body is provided between the first and second detachable buttons to provide elasticity.

In addition, the first and second compass body has a hollow cylindrical shape of the fitting groove of the size that can be fitted to the measurer on one side; And a first through hole which can be fixed through the writing instrument or the compass needle at a distance from the fitting groove.

In addition, the first detachable button is provided with a fitting groove that can be inserted into the measuring groove to be fitted into the fitting groove on the side.

In addition, the second detachable button is provided with a second through hole penetrating from one side so that any one of the writing instrument or the compass needle portion can be fitted.

In addition, the compass needle is detachably installed on the second compass body, having a columnar shape on the lower side of the needle holder is provided with a 'b' shaped first fixing groove; and fixed to the lower end of the needle holder A rotary support needle which is installed to overlap with the circumference of the rotary support needle to a lower end of the needle holder; And a hollow cylindrical shape having an upper end and a lower end, and the protective cap elastic body is installed to be trapped therein, and may include a protective cap protruding from the inner side of the protective cap fixing jaw.

In addition, the compass needle is detachably installed on the second compass body, having a columnar shape in the lower side of the needle holder is provided with a second fixing groove of the 'c' shape; and fixed to the lower end of the needle holder A rotary support needle which is installed to overlap the circumference of the rotary support needle to a lower end of the needle holder; And a hollow cylindrical shape having an upper end and a lower end, and the protective cap elastic body is installed to be trapped therein, and may include a protective cap protruding from the inner side of the protective cap fixing jaw.

In addition, the compass needle is detachably installed on the second compass body, the needle holder having a columnar shape and the third fixing groove of the 'Z' shape is provided on the side of the lower portion; and fixed to the lower end of the needle holder A rotary support needle which is installed to overlap the circumference of the rotary support needle to a lower end of the needle holder; And the upper and lower ends to form a hollow cylindrical shape, the protective cap elastic body is installed to be trapped inside, it may be configured to include a protective cap protruding the protective cap fixing jaw on the inner side.

In addition, the lower end of the protective cap is configured to further comprise a rotation support friction material made of any one of rubber or silicone having a frictional force.

In addition, the rotation support friction material 342 may form an arc having a hollow cross section.

In addition, at least one or more first locking projections are formed on the inner surfaces of the first and second compass bodies to prevent the first or second detachable button or the first button elastic body from being dislocated. It is composed.

In addition, the outer surface of the first or the second detachable button is at least one or more second locking projections are formed to further include the first or second detachable button so as not to be out of position.

In addition, the upper cylinder is fixed to the upper end of the needle holder fixed in the shape of a cylindrical opening; And a compass body storage portion formed of a storage cap that is detachably fitted to open and close the opened upper surface of the storage container.

And the compass body storage portion may be made integral with the needle holder.

In addition, any one of the upper end of the opening of the reservoir or the lower end of the cap for the reservoir is configured to be further provided with a pressing member made of any one material of rubber or silicone having elasticity.

In addition, a second button elastic body is provided between the first and second detachable buttons for giving elasticity to the second detachable button; And a fixing plate fixedly installed between the second button elastic body and the first button elastic body to support the first and second button elastic bodies.

And the first and second button-elastic body is configured to further comprise any one of a spring or plate spring.

According to the detachable compass according to the present invention as described above, it is possible to perform the function of the compass in a state in which the detachable compass consisting of a pair detachably attached to the measuring device to facilitate the adjustment of the numerical value to increase the simplicity of operation and the measurer installed According to the length of the user can create a circle of the desired size, which increases the availability and efficiency.

In addition, there is an effect of maximizing convenience by mounting the first and second detachable buttons at both ends so as to be easily detachable by one touch.

In addition, when not drawing, the pointed rotating support needle is positioned to be included inside the protective cap to protect it from being exposed to the outside and to prevent unintentional injury from users or inexperienced children during learning or in other situations. It can be effective.

In addition, the first and second compass body separated from the measuring device is provided with a compass body storage portion that can accommodate and store therein, so that the user can conveniently carry the compass has the effect of increasing storage and mobility.

In addition, the lower end of the protective cap is provided with a rotating support friction material that can be rotated on a solid ground, so that it can be used both in drawing paper or steel sheets or slabs, thereby increasing the utilization efficiency.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the removable compass according to the present invention.

2 is a perspective view showing a state in which the removable compass according to an embodiment of the present invention coupled in a configurable state, Figure 3 is an exploded view of a portion of Figure 2, Figure 4 is a cross-sectional view cut to the longitudinal section of FIG. to be.

As shown in the drawings, the removable compass according to the present invention is the first, second compass body (110a. 100b) and the first detachable button 120, the second detachable button 130 and the first button elastic body ( 140).

The first and second compass bodies (110a, 110b) is a cylindrical shape of any one of a hollow circular or rectangular or polygonal penetrated in the longitudinal direction, the material is preferably made of hard plastic or metal. And one side of the first and second compass body (110a, 110b) is provided with a fitting groove 111 in the width direction so that the measuring device (1) used for measuring the length can be inserted and withdrawn. In addition, the first through hole 112 penetrates at one side with the fitting groove 111 at a predetermined distance from the fitting groove 111.

The first detachable button 120 is inserted into one side portion of the first and second compass bodies 110a and 110b, and the fitting groove 121 is provided on the outer circumferential surface of the first detachable button 120. When the first detachable button 120 is installed in the first and second compass bodies 110a and 110b, the fitting groove 121 forms the same position in a vertical line with the fitting groove 111. Install. One end of the first detachable button 120 is formed to be exposed to the outside through a penetrated portion of the first and second compass bodies 110a and 110b.

The second detachable button 130 is inserted into the other one side of the first and second compass bodies 110a and 110b to correspond to the first detachable button 120 and penetrates vertically through the body. The second through hole 131 is formed. The second through hole 131 has a width that is wider than that of the first through hole 112, and the second detachable button 130 is installed on the first and second compass bodies 110a and 110b. When the second through hole 131 is installed so as to be in the same position in a vertical line with the first through hole 112. In addition, one end of the second detachable button 130 protrudes to the outside through a penetrated portion of the first and second compass bodies 110a and 110b in a form corresponding to the first detachable button 120. It is formed to be exposed in a state.

In addition, the first button elastic body 140 is preferably formed in a spring shape made of a material such as metal or plastic having elasticity and the first installed in the first and second compass bodies 110a and 110b in a corresponding form. And are installed to be sandwiched between the two detachable buttons 120 and 130, and the first and second detachable buttons 120 and 130 receive pressure from the outside to form an inner side of the first and second compass bodies 110a and 110b. Even if it moves to, it gives elasticity so that it can be restored to its original position.

The compass needle part 300 is inserted into the first through hole 112 so that the compass needle part 300 is detachably installed. The method of detaching the compass needle part 300 from the first through hole 112 is illustrated in FIG. 15. Will be described later in detail with.

 5 is a view showing a structure of the first fixing groove and the operating state of the protective cap according to an embodiment of the present invention, Figure 6 is a structure and a protective cap of the second fixing groove according to another embodiment of the present invention 7 is a view showing the operating state, Figure 7 is a view showing the structure of the third fixing groove and the operating state of the protective cap according to another embodiment of the present invention, Figure 8 is according to another embodiment of the present invention It is sectional drawing which showed the state which the rotation support friction material is installed.

The compass needle part 300 detachably attached to the first through hole 112 includes a needle holder 310, a rotation supporting needle 320, a protective cap elastic body 330, and a protective cap 340.

As shown in FIG. 5. The needle holder 310 is preferably made of any one material of metal or plastic. And the needle holder 310 is a portion that serves as the body so that the compass needle 300 can be fixed in the state fitted in the first through hole 112 and the circumference of the outer peripheral surface corresponding to the body of the general writing instruments It has a shape and the lower portion is formed in a layer so that the length of the circumference of the outer peripheral surface is shorter than the upper portion. The lower side surface of the needle holder 310 is provided with a first fixing groove (311a) of the 'b' shape having a predetermined length and vertically formed so that the upper end is horizontally bent.

In addition, the rotation support needle 320 is fixed to the lower end of the needle holder 310 is fixed to the drawing paper when the removable compass of the present invention draws the drawing paper serves as an axis for rotation.

In addition, the protective cap elastic body 330 is made of a spring shape of a material such as metal or plastic having elasticity. The protective cap elastic body 330 is provided to the lower end of the needle holder 310 in the form surrounding the rotary support needle 320.

In addition, the protective cap 340 has a hollow cylindrical shape that is vertically penetrated, the outlet 344 of the lower than the inlet 343 of the upper end is formed smaller and the protective cap fixing jaw 341 protruding on the inner side It is provided. The protective cap 340 surrounds the protective cap elastic body 330 in all directions, and the lower end of the protective cap elastic body 330 prevents the protective cap elastic body 330 from leaving downward due to a narrower outlet 344 than the inlet 343. The cap elastic body 330 is accommodated therein to be fixedly installed at the lower end of the needle holder 310. The protective cap fixing jaw 341 protruding in the protective cap 340 is installed to be caught by the first fixing groove 311a provided in the needle holder 310 so that the first fixing groove 311a is The protective cap 340 to provide a moving path.

Referring to the detailed description of the state of use of the protective cap 340, usually the protective cap 340 is the protective cap elastic member 330 receives the elasticity of the protective cap fixing jaw 341 is the first fixed As a result, the protective cap 340 maintains a shape that surrounds the rotary support needle 320 so that the rotary support needle 320 is not exposed to the outside. Do not

On the other hand, when the user wants to draw a circle using the removable compass of the present invention by exposing the rotating support needle 320 to the outside of the user to lift the protective cap 340 up of the first fixing groove (311a) Follow the instructions to move. Subsequently, when the protective cap fixing jaw 341 moves to the upper end of the first fixing groove 311a, the protective cap 340 is rotated to the right, so that the protective cap fixing jaw 341 is the first fixing groove ( 311a) by allowing the protective cap 340 to be fixed to the horizontally bent portion of the top. Then the rotary support needle 320 is exposed to the outside through the outlet 344 formed on the lower end of the protective cap 340.

As shown in Figure 6 will be described a modified example of the needle holder 310 according to another embodiment of the present invention.

The first fixing groove 311a of the needle holder 310 may be deformed into a second fixing groove 311b having a 'c' shape having a predetermined length, forming a vertical groove and having horizontally bent upper and lower ends. Can be.

As shown in Figure 7 will be described another modified example of the needle holder 310 according to another embodiment of the present invention.

The first fixing groove 311a of the needle holder 310 has a top and bottom horizontally, and has a zigzag-shaped 'Z' shaped third fixing groove 311c formed of a groove connecting the top and bottom diagonally. Can be transformed into

As shown in Figure 8, the lower end of the protective cap 340 is preferably provided with a rotating support friction material 342 made of any one material of rubber or silicon having a friction force.

In addition, when the rotary support friction material 342 is cut in the shape of the hemispherical suction plate, the cross-section is preferably formed to have a suction function by forming a hollow arc. This reveals that the removable compass of the present invention loses its center and shakes when drawing a circle around the rotary support friction material 342.

9 is a cross-sectional view illustrating a state in which a locking protrusion is installed according to another embodiment of the present invention, and FIG. 10 is a cross-sectional view illustrating a state in which a locking protrusion is installed according to another embodiment of the present invention.

According to the drawings will be described modified examples according to another embodiment of the present invention.

As shown in FIG. 9, at least one first catching jaw 113 is preferably protruded from the inner surfaces of the first and second compass bodies 110a and 110b. The first catching jaw 113 is the first or second detachable button (120, 130) or the first or second detachable button (120, 130) at a position where the first button elastic body 140 is installed. Alternatively, the first button-elastic body 140 may be protruded to prevent it from being moved out of position. In addition, the first or second detachable button (120, 130) is caught on the first latching jaw 113, the first or second detachable button (120, 130) in order to maintain the position It is preferable that the first locking grooves 122 are formed to control the first locking jaws 113 so that they cannot be moved beyond a predetermined distance.

As shown in FIG. 10, it is preferable that at least one or more second locking jaws 123 protrude from the outer surfaces of the first or second detachable buttons 120 and 130. The second catching jaw 123 is protruded to prevent the first or second detachable buttons 120 and 130 from being deviated from the position. For this reason, the first and second compass bodies 110a, so that the second catching groove 114 for controlling the second catching jaw 123 so as not to move by a predetermined distance or more, correspond to the second catching jaw 123. It is preferable to be provided in the inner side of 110b).

FIG. 11 is a view illustrating a compass body storage unit and a state of use thereof according to another embodiment of the present invention, and FIG. 12 illustrates a state in which a crimping member is installed in the compass body storage unit according to another embodiment of the present invention. The figure shown.

As shown in Figure 11, the upper end of the needle holder 310, the compass body storage unit 400 is fixedly installed, the compass body storage unit 400 is composed of a storage container 410 and the cap for storage container 420 It is preferably made of a material such as metal or plastic.

The storage container 410 has a cylindrical shape with only an upper surface opened and fixed to the upper end of the needle holder 310. The storage container 410 and the needle holder 310 are manufactured to be separated to reduce manufacturing costs. In some cases, the needle holder 310 and the reservoir 410 may be manufactured in one piece.

In addition, the receiving container 430 having a predetermined space is formed inside the storage container 410 to accommodate and store the first and second compass body (110a, 110b) and accessories installed therein for convenient storage and portability. .

In addition, the storage cap 420 is formed in a plate shape and is provided with a handle 421 protruding at the top and the bottom is formed in a layered structure to shorten the length of the circumference. The container cap 420 is installed to be detached to the open upper surface of the storage container 410 is inserted into the lower end of the layer into the receiving portion 430 and the body portion over the top of the storage container 410 It is fitted to be opened and closed to the top of the storage container 410 in the form of losing.

As shown in Figure 12, the upper end of the reservoir 410 and the lower portion of the container cap 420, the pressure in the form of a ring of any one material of rubber or silicone having elasticity and friction to the layer layered It is preferable that the member 440 is installed. The storage cap 420 is installed by fitting the storage cap 420 to the storage container 410 by the pressing member 440 so as to strengthen the pressing force so that the storage container cap 420 can be operated without the user's manipulation. Do not separate easily from

FIG. 13 is a cross-sectional view illustrating a state in which a fixing plate is installed according to another embodiment of the present invention, and FIG. 14 is a cross-sectional view illustrating a state in which a plate spring is installed in FIG. 13.

As shown in the drawings, a modified example according to another embodiment of the present invention will be described.

As shown in FIG. 13, the first and second compass bodies 110a and 110b have a plate-shaped fixing plate 160 between the first and second detachable buttons 120 and 130. 2 is preferably installed so as to divide the interior of the compass body (110a, 110b) in two horizontally. When the fixing plate 160 is installed, the first and second button elastic bodies 140 and 150 are installed to correspond to each other with the fixing plate 160 interposed therebetween. The first button elastic body 140 installed as described above provides elasticity to the first detachable button 120 and the second button elastic body 150 imparts elasticity to the second detachable button 130. The reason for installing the fixing plate 160 as described above is that the first and second button elastic bodies 140 and 150 are installed by installing two first and second button elastic bodies 140 and 150, respectively. To increase the effect of the elasticity is transmitted to the removable button (120, 130).

As shown in FIG. 14, the first and second compass bodies 110a and 110b in which the fixing plate 160 is installed have a plate-shaped third and a third, instead of spring-like first and second button elastic bodies 140 and 150. The four-button elastic bodies 170 and 180 may be provided.

15 is a cross-sectional view showing an operating state of the removable compass according to an embodiment of the present invention, Figure 16 is a view showing a state of constructing a circle around the support shaft for rotation in accordance with an embodiment of the present invention, Figure 17 is a view showing a state of constructing a circle around the axis of rotation support friction material according to another embodiment of the present invention.

Referring to Figure 15 will be described a method of operating a removable compass according to the present invention.

In order to fit the compass needle part 300 to the removable compass of the present invention, one end of the second detachable button 130 protrudes to the outside and the user applies pressure to the inside of the compass body 110b. When inserted, the compass needle part 300 simultaneously penetrates the second through hole 131 and the first through hole 112 while the second through hole 131 and the first through hole 112 vertically coincide with each other. It is fitted in one state. Then, the pressure applied to the second detachable button 130 is released so that the second detachable button 130 is elastic by the first button-elastic body 140 to return to the original position. The compass needle part 300 inserted into the through hole 131 and the first through hole 112 has the second through hole 131 and the first through hole 112 staggered from each other. It is fixed by the friction force generated in the compass needle 300.

When the compass needle part 300 is separated from the detachable compass of the present invention, the second detachable button 130 is pressurized in the same manner as the method of fitting the compass needle part 300 described above. The compass needle part 300 may be removed.

In addition, the method of fitting the measurer 1 to the removable compass of the present invention also similar to the method of fitting the compass needle 300 described above, the user protrudes to the outside of the first detachable button 120 exposed to one end portion. Applying pressure, the fitting groove 111 and the fitting groove 121 are horizontally positioned in a straight line so that the measurer 1 is simultaneously fitted to the fitting groove 111 and the fitting groove 121. After the pressure applied to the first detachable button 120 is removed, the detachment groove 111 and the fitting groove 121 are staggered so that the measurer 1 is fixed by the friction force generated in the measurer 1.

In addition, the method of separating the measurer 1 from the detachable compass of the present invention also separates the measurer 1 while applying pressure to the first detachable button 120 in the same manner as the above-described measurer 1. Just do it.

In addition, two detachable compasses of the present invention are attached to the measurer 1 in pairs to perform a compass function, and one detachable compass is installed to be detachably fitted with the compass needle part 300 and the other detachable compass In the state where the writing instrument is detachably fitted, a pair of detachable compasses are installed to be detachably fitted to the measurer 1 and used.

As illustrated in FIG. 16, when drawing a circle on a drawing paper, one detachable compass is installed to detach the compass needle part 300 so that the rotation supporting needle 320 is external to the protective cap 340. It is possible to construct the circle by inserting the detachable compass of the present invention to the measurer in accordance with the scale of the measurer while being operated to be exposed to the other detachable compass and installing the writing instrument detachably.

As shown in Figure 17, when drawing a circle on a rigid object, such as iron plate or slab, one of the removable compasses to install the compass needle portion 300 to be detachably installed by the rotary support needle 320 is protected Fixed in the state accommodated in the cap 340 and the other one of the removable compass installed in the state in which the writing instrument is detachably fitted in accordance with the scale of the measuring instrument to install the removable compass of the present invention to the measurer to install the protective cap (340) What is necessary is just to construct a circle using the rotation support friction agent 342 provided in the lower end as a support shaft.

The scope of protection of the present invention should be interpreted by the claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

1 is a front view showing a compass according to the prior art,

Figure 2 is a perspective view showing a state in which the removable compass according to an embodiment of the present invention combined state;

3 is an exploded view showing only a part of FIG. 2;

4 is a cross-sectional view cut into Figure 2,

5 is a view showing the structure of the first fixing groove and the operating state of the protective cap according to an embodiment of the present invention,

Figure 6 is a view showing the structure of the second fixing groove and the operating state of the protective cap according to another embodiment of the present invention,

7 is a view showing the structure of the third fixing groove and the operating state of the protective cap according to another embodiment of the present invention,

8 is a cross-sectional view showing a state in which the rotational support friction material is installed according to another embodiment of the present invention;

9 is a cross-sectional view illustrating a state in which a locking protrusion is installed according to another embodiment of the present invention;

10 is a cross-sectional view showing a state in which a locking projection is installed according to another embodiment of the present invention;

11 is a view showing a compass body storage unit and its use state according to another embodiment of the present invention,

12 is a view showing a state in which the pressing member is installed in the compass body storage unit according to another embodiment of the present invention,

13 is a cross-sectional view showing a state in which the fixing plate is installed according to another embodiment of the present invention,

14 is a view showing a state in which the leaf spring is installed in FIG.

15 is a cross-sectional view showing an operating state of the removable compass according to an embodiment of the present invention,

16 is a view showing a state of constructing a circle around the axis of rotation support needle according to an embodiment of the present invention,

Figure 17 is a view showing a state of constructing a circle around the rotation support friction material according to an embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

110a, b: first and second compass bodies 111: fitting groove

112: first through hole 120: first detachable button

121: fitting groove 130: second detachable button

131: second through hole 140: first button-elastic body

300: compass needle 310: needle holder

320: rotating support needle 330: protective cap elastomer

340: protective cap 400: compass body storage

410: storage container 420: storage cap

Claims (17)

A measurer 1 having a length; A first compass body (110a) detachably provided at one side of the measurer (1) and having a writing instrument; A second compass body (110b) detachably provided at a distance from the first compass body (110a) on one side of the measurer (1) and having a compass needle (300); A first detachable button 120 formed at one side of the first and second compass bodies 110a and 110b to attach and detach the measurer 1; And Is formed on the other side of the first detachable button 120, and comprises a second detachable button 130 for attaching and detaching a writing instrument or compass needle 300, The first and second compass body (110a, 110b) is a hollow cylindrical shape of the fitting groove 111 of the size that can be fitted to the measurer on one side, and Removable compass, characterized in that the first penetrating hole 112 is further provided with a writing instrument or a compass needle portion 300 at a distance from the fitting groove (111). The method of claim 1, Removable compass, characterized in that the first button elastic body 140 is fitted between the first and second detachable buttons (120, 130) to further provide elasticity. delete The method of claim 1, Removable compass, characterized in that the first detachable button 120 is provided with a fitting groove 121 on which one side to which the detachable measurer (1) is fitted. The method of claim 1, Removable compass, characterized in that the second removable button 130 is provided with a second penetrating hole (131) penetrating from one side so that any one of the writing instruments or the compass needle portion 300 can be fitted. The method of claim 1, The compass needle part 300 is detachably installed on the second compass body 110b, and has a columnar shape and a needle fixing stand 310 having a first fixing groove 311a having a '-' shape on the side of the lower part. )Wow, Rotation support needle 320 is fixed to the lower end of the needle holder 310; Protective cap elastic body 330 is installed to overlap the circumference of the rotary support needle 320 to the lower end of the needle holder 310, and The upper and lower ends form a hollow cylindrical shape, and the protective cap elastic body 330 is installed to be trapped therein, and includes a protective cap 340 having a protruding cap fixing jaw 341 formed on an inner side thereof. Removable compass. The method of claim 1, The compass needle part 300 is detachably installed on the second compass body 110b, has a columnar shape, and a needle fixing stand 310 having a second fixing groove 311b having a 'c' shape on the side of the lower part. )Wow, Rotation support needle 320 is fixed to the lower end of the needle holder 310; Protective cap elastic body 330 is installed to overlap the circumference of the rotary support needle 320 to the lower end of the needle holder 310, and The upper and lower ends form a hollow cylindrical shape, and the protective cap elastic body 330 is installed to be trapped therein, and includes a protective cap 340 having a protruding cap fixing jaw 341 formed on an inner side thereof. Removable compass. The method of claim 1, The compass needle part 300 is detachably installed on the second compass body 110b, has a columnar shape, and a needle fixing stand 310 having a third fixing groove 311c having a 'Z' shape on a side of the lower part. )Wow, Rotation support needle 320 is fixed to the lower end of the needle holder 310; Protective cap elastic body 330 is installed to overlap the circumference of the rotary support needle 320 to the lower end of the needle holder 310, and The upper and lower ends form a hollow cylindrical shape, and the protective cap elastic body 330 is installed to be trapped therein, and includes a protective cap 340 having a protruding cap fixing jaw 341 formed on an inner side thereof. Removable compass. The method according to claim 7 or 8, Removable compass, characterized in that the lower end of the protective cap 340 is further provided with a friction support friction material 342 made of any one of rubber or silicone having a friction force. The method of claim 9, The rotating support friction material 342 is a removable compass, characterized in that for forming an arc having a hollow cross section. The method of claim 1, At least one first catching jaw 113 is protruded from the inner side surfaces of the first and second compass bodies 110a and 110b for the first or second detachable buttons 120 and 130 or the first button. Removable compass characterized in that it further comprises preventing the positional displacement of the elastic body (140). The method of claim 1, At least one second catching jaw 123 is protruded from an outer surface of the first or second detachable buttons 120 and 130 so that the first or second detachable buttons 120 and 130 are out of position. Removable compass, characterized in that it further comprises not to. The method according to any one of claims 6 to 8, An upper surface of which is fixed to the upper end of the needle holder 310 is opened cylindrical storage container 410, and Removable compass, characterized in that it further comprises a compass body storage portion 400 made of a storage cap 420 that is fitted to be detachably inserted to open and close the opened upper surface of the storage container (410). The method of claim 13, The compass body storage unit 400 is a removable compass, characterized in that made in one piece with the needle holder (310). The method of claim 13, Removable, characterized in that the pressing member 430 made of any one material of the rubber or silicon having elasticity is further installed at any one of the upper end of the opening or the lower end of the storage cap 420 of the storage container 410. compasses. The method of claim 1, A second button-elastic body 150 provided between the first and second detachable buttons 120 and 130 to give elasticity to the second detachable button 130, and The fixing plate 160 is fixedly installed between the second button elastic body 150 and the first button elastic body 140 to support the first and second button elastic bodies 140 and 150. Removable compass characterized by the above. The method of claim 16, The first and second button elastic body (140, 150) is a removable compass, characterized in that made of any one of a spring or plate spring.

Images