KR101163487B1

KR101163487B1 - Saperlock nut

Info

Publication number: KR101163487B1
Application number: KR1020100057580A
Authority: KR
Inventors: 임영우
Original assignee: 임영우
Priority date: 2010-01-21
Filing date: 2010-06-17
Publication date: 2012-07-19
Also published as: KR20110085832A; WO2011090234A1

Abstract

The present invention relates to a safety lock nut for preventing the nut that is fastened to the helix of the bolt arbitrarily loosened, in particular when the nut is fastened or loosened when the nut is fastened to penetrate the helix of the bolt It is easy to fasten and loosen in the absence, and in the state that the nut is screwed to the spiral shaft, the tightening force is firm, so that the nut does not loosen arbitrarily from the spiral shaft even if external vibration occurs. As for
It has a concave indentation which is concaved inwardly from the upper surface in the center, a spiral hole having a smaller inner diameter in the center of the lower surface of the concave portion, and has a stepped surface so that the upper end of the coil spring can be fixed to one side of the upper surface. A winding portion, a nut formed in a horizontal state on one side of the lower end of the concave portion, and made of a long hole communicating with the outside to allow the lower end of the coil spring to pass therethrough;
The upper end of the coil is inserted into the concave part of the nut and has an upper coil part fixed in a state of being wound around the winding part, and the lower end of the coil part is formed of a bent end that is bent outward so as to fit in the long hole. In forming the safety lock nut which consists of a coil spring,
The outer circumferential surface of the nut is formed as a hexagon nut part having a hexagonal shape in the lower part from the lower surface of the long hole, and the upper surface portion of the hexagon nut part is formed as a circular nut part having a circular shape.

Description

SAPERLOCK NUT}

The present invention relates to a safety lock nut for preventing the nut that is fastened to the helix of the bolt arbitrarily loosened, in particular when the nut is fastened or loosened when the nut is fastened to penetrate the helix of the bolt It is easy to fasten and loosen in the absence, and in the state that the nut is screwed to the spiral shaft, the tightening force is firm, so that the nut does not loosen arbitrarily from the spiral shaft even if external vibration occurs. It is about.

In general, bolts and nuts are used to join two objects, which are usually separated by two or more, in various fields, such as electric vehicle and automobile accessory assembly, electronic component assembly, furniture assembly, and structure assembly in construction sites. It is widely used.

As described above, the simple fastening structure of the bolt and nut has a disadvantage in that the fastening force is weakened by external shock or vibration.

In other words, the screw's screw shaft is in the state of being fastened to the screw thread formed in the nut. When vibration or shock is applied from the outside during use, the nut screwed on the screw shaft is loosened arbitrarily. There is a disadvantage in that the two structures are fastened and secured by space, and in severe cases, the bolts and nuts are completely loosened, so that the structure is broken and the collapse is made.

As described above, in order to prevent loosening of the nut, which is screwed into the screw shaft of the bolt, even if an external shock or vibration occurs, various technologies can be used at home or abroad. Development of anti-loosening nut has been in use until now.

Patent No. 902061 (Power Clutch Nut) developed and registered by the applicant of the present invention among the various anti-loosening nuts as described above has been introduced and is currently used.

The above conventional power clutch nut is simply bent so that the upper and lower ends face outward in a state in which the coil springs inserted in the recess grooves formed inside the nut have the same diameter. If you want to fasten the helix shaft of the bolt to the nut to be fixed in the state that is caught in the engaging groove provided on the top of the nut, the bent end of the lower end is located in the long hole formed to open outward from the lower side of the recess groove Alternatively, if you want to disassemble the bolts and nuts that are fastened, if the socket is made to cover the nut to cover the nut, the push pin provided on one side of the socket is exposed to the outside through the long hole The bending end is pushed in the direction that the coil spring is unwound so it is closely wound on the spiral shaft Fastening force of the coil spring which will be relatively loose to give a spiral shaft and a nut, which is fastened along the weakening.

However, the conventional nut as described above has the same diameter of the coil spring that tightly surrounds the outer circumference of the spiral shaft, so that the coil spring can only be released within the moving range of the bent end that flows within the long hole range. The lower coil spring near the bent end of the coil spring may loosen from the spiral shaft, but the upper coil spring is not released from the spiral shaft. In other words, the spiral shaft is damaged by the coil spring which is not released from the spiral shaft.

In addition, the coil spring as described above has a relatively high elasticity, so other tools, etc., cannot push the bent end located in the long hole. Therefore, the socket must be used to move the bent end while being covered by the nut. If you do not have a dedicated socket, you will not be able to loosen the nut.

In addition, when vibration occurs while the nut is fastened to the spiral shaft, the nut is not loosened arbitrarily by the tightening force of the coil spring that is tightly wrapped around the outer circumference of the spiral shaft, and the upper end of the coil spring is bent outward. In the bent end is fixed in a state that is caught in the locking groove of the nut, when the vibration is relatively severe, such a phenomenon that the bent portion of the bent end is broken, in this case the nut from the spiral shaft There are many defects such as not being able to release.

Therefore, the present invention is tightly fixed and fixed in the state that the nut is screwed to the screw shaft of the bolt, so that the bolt and nut does not loosen arbitrarily even when shock or vibration occurs from the outside during use, and the nut on the screw shaft formed on the bolt To loosen the bolts and nuts that are screwed together or to loosen the bolts and nuts that are screwed together, the coil springs can be fixed so that the bolts and nuts can be easily tightened and loosened. The purpose is to.

In addition, when the tightening and loosening of the bolt and nut is to be performed, the present invention allows the gap between the coil springs to be maximized even when the gap between the coil springs is minimized, thereby easily tightening without damaging the spiral shaft wound on the coil springs. And for the purpose of allowing the annealing to be performed.

The present invention for realizing this object is a concave indentation to be inwardly in the center of the upper surface in the center, a spiral hole having a smaller inner diameter in the center of the lower surface of the concave portion, the upper end of the coil spring wound on one side of the upper surface A winding portion having a stepped surface so as to be fixed, and a nut formed in a horizontal state on one side of the lower end of the concave inlet to communicate with the outside so that the lower end of the coil spring can pass therethrough;
The upper end of the coil is inserted into the concave part of the nut and has an upper coil part fixed in a state of being wound around the winding part, and the lower end of the coil part is formed of a bent end that is bent outward so as to fit in the long hole. In forming the safety lock nut which consists of a coil spring,
The outer circumferential surface of the nut is formed as a hexagon nut portion having a hexagonal shape in the lower portion from the lower surface of the long hole, and the upper surface portion of the hexagon nut portion is formed as a circular nut portion having a circular shape.
In addition, it characterized in that it further comprises an extension extending in a vertical state between the coil portion to form the coil spring, and the upper coil portion extending to the upper end of the coil portion.

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In addition, the concave indentation portion which is concaved inwardly from the upper surface in the center, the spiral hole having a smaller inner diameter in the center of the lower surface of the concave portion, and the stepped surface so that the upper end of the coil spring can be fixed to the upper side. A nut formed of a long hole having a coiled portion having a horizontal state on one side of the lower end of the concave portion so as to communicate with the outside so that the lower portion of the coil spring can pass therethrough;
The upper end of the coil is inserted into the concave part of the nut and has an upper coil part fixed in a state of being wound around the winding part, and the lower end of the coil part is formed of a bent end that is bent outward so as to fit in the long hole. In forming the safety lock nut which consists of a coil spring,
The outer circumferential surface of the nut is formed as a hexagon nut part having a hexagonal shape in the lower part from the lower surface of the long hole, and the upper surface portion of the hexagon nut part is formed as a circular nut part having a circular shape, and the circular nut part It is characterized in that the incision groove is formed vertically from the upper surface as a starting point.

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According to the present invention, the bent end portion of the lower end is inserted into the guide hole in a state in which a nut is formed in a hexagonal nut part having a spiral hole and a circular nut part having a recess hole and a guide hole, and the coil spring is placed in the recess hole. The upper coil part is formed to be fixed to the wound surface of the circular nut part, so that when the bolt is fastened to the nut and to release them, the upper part of the coil spring is wound in the coil part as it is being wound. As the fixed coupling is made in the state of being mounted on the stepped side of the part and wound by the winding surface, the vibration and shock are not intensively applied to any part of the coil spring even when the shock and vibration are applied to the coil spring from the outside. The coil spring is not cut by vibration and shock as it is evenly distributed and extinguished throughout. There is an effect that can be used in the state.

In addition, if the outer peripheral surface of the nut is formed by dividing the hexagon nut part and the circular nut part equally, and the coil spring is wrapped in the outer circumference of the spiral shaft, the nut and the bolt are fastened and used to release the nut and the bolt. Instead of using a special tool as in the patents currently acquired by the applicant of the present application, the coil spring wound around the spiral shaft is loosened by using a socket having a covering groove that can be covered with a hexagon nut part on the inner circumferential surface which is widely used now. The bolt and nut can be released in the unlocked state so that anyone can easily loosen it without a special tool.

1 is an exploded perspective view for showing the configuration of the present inventors locker nut.
2 is a cross-sectional view showing the configuration of the present invention the locker nut,
Figure 2a is a state diagram before the coil spring is coupled to the nut.
Figure 2b is a state in which the spiral shaft is fastened in the state that the coil spring is assembled to the nut.
3 is a front view of the present inventors locker nut,
Figure 3a is a state before the screw shaft is fastened to the nut.
Figure 3b is a state before the socket is inserted into the nut after the screw shaft is fastened to the nut.
Figure 3c is a state in which the socket is inserted to the hexagon nut portion of the nut after the screw shaft is fastened to the nut.
4 is a plan sectional view of the present inventors locker nut,
Figure 4a is a state before the screw shaft is fastened to the nut.
Figure 4b is a state in which the socket is inserted only in the circular nut portion of the nut after the screw shaft is fastened to the nut.
Figure 4c is a state in which the socket is inserted to the hexagon nut portion of the nut after the screw shaft is fastened to the nut.
5 is another embodiment of the coil spring of the present invention,
5A is a perspective view of a coil spring.
Figure 5b is a cross-sectional view of the coil spring coupled to the nut.
5C is a plan view of the coil ring.
Figure 6 is an exploded perspective view for showing another embodiment of the present invention.
7 is a cross-sectional view for illustrating the configuration of another first embodiment of the present invention.
Figure 7a is a state diagram before the coil spring is coupled to the nut.
Figure 7b is a state in which the spiral shaft is fastened in the state that the coil spring is assembled to the nut.
Fig. 7C is a plan view for showing a state in which the coil spring is released by the socket.
8 is a cross-sectional view taken along the line AA of FIG.
Figure 9a is a rear view of a nut showing another first embodiment of the coil spring of the present invention.
Figure 9b is a front view of a nut showing another second embodiment of the coil spring of the present invention.
Figure 10a is a front view of a nut showing another third embodiment of the coil spring of the present invention.
Figure 10b is a front view of a nut showing another fourth embodiment of the coil spring of the present invention.
Figure 11a ~ c is a configuration diagram showing an embodiment equipped with a locking means in the guide hole in order to be able to take the bent end of the coil spring of the present invention.
12 is a cross-sectional view for illustrating a configuration of another second embodiment of the nut of the present invention;
12A is a sectional view showing the structure of a nut.
Fig. 12B is a sectional view of the state in which the helix shaft of the bolt is fastened to the nut.
Figure 13 is an exploded perspective view showing the configuration of another third embodiment of the nut of the present invention.
14 is a cross-sectional view showing the configuration of another third embodiment of the nut of the present invention;
Fig. 14A is a state diagram before the spiral shaft is fastened.
14B is a state in which a spiral shaft is fastened.
Fig. 15 is a plan sectional view showing the construction of another third embodiment of the nut of the present invention;
Fig. 15A is a state diagram before the spiral shaft is fastened.
Figure 15b is a state in which the spiral shaft is fastened.

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

1 is an exploded perspective view for showing a state in which the present invention is applied, Figure 2 is a cross-sectional view for showing a state in which the present invention is applied, the safety lock nut 100 of the present invention is the spiral shaft 210 of the bolt 200 is The nut 300 which is fastened while penetrating, the coil spring 400 which is held in the nut and closely closes the outer circumference of the spiral shaft of the bolt penetrating the nut, and the coil spring 400 to closely hold the nut. Covered on the outer circumferential surface of the coil spring to be made to open to the outside when the fastening and loosening of the bolt is made of an unwinding means 500 to allow the bolt and nut to rotate easily.

The nut 300 has a hexagonal nut portion 310 having an outer circumferential surface having a hexagonal shape and having a spiral hole 320 in which a spiral shaft 210 of the bolt 200 can be fastened to the center thereof. Integral to the upper surface has a circular shape of the outer periphery has a circular shape and the inside has a circular nut portion 330 having a concave portion 340 has a relatively larger inner diameter than the spiral hole, the upper surface of the concave portion 340 of the circular nut portion The coil spring has a winding portion 350 having a stepped surface 360 so as to be wrapped in a state where the upper coil portion of the coil spring is placed thereon, and the lower side of the circular nut portion communicates with the concave inlet portion 340 to form the coil spring 400. Equipped with a guide hole 370 that allows the lower end of the penetrating to move freely.

In addition, the coil spring 400 is inserted into the concave portion 340 of the circular nut portion 330 to cover the spiral shaft 210 of the bolt and a plurality of coil portion 410, the upper end of the coil portion An extension portion 420 extending from the end portion in a vertical state, an upper coil portion 430 extending integrally to the end portion of the extension portion to have a slightly larger outer diameter than the outer diameter of the coil portion, and positioned at the bottom of the coil portion. End to be bent to be formed to be bent end portion 440 to be penetrated to the outside through the guide hole 370.

At this time, the outer diameter of the coil portion is separated from the inner circumference of the concave portion 340 to have a space enough to open the coil portion to the outside.

In addition, the release means 500 is provided with a socket 510 having a covering groove 520 having an inner circumferential surface of the hexagonal shape so that the outer circumferential surface of the hexagon nut portion 310 can be covered, each corner of the covering groove portion The part is provided with the semicircular recessed groove 530.

At this time, the release means 500 is to use the socket which is currently widely used as it is.

In the present invention, as shown in FIG. 2A, the safety lock nut 100 having the configuration as described above has the winding surface 350 of the coil spring 400 being vertically inserted into the recess 340 of the nut 300. It remains in state.

In this state, as shown in FIG. 2B, the coil spring 400 is inserted into the recess 340 of the nut 300, but the bent end 440 is provided at the bottom end of the coil part 410 of the coil spring. ) Is located in the guide hole 370, the upper coil portion 430 is placed on the stepped surface 360 in a state that is placed on the upper end of the circular nut portion 330 wound surface 350 is provided on the inside If it is to be wound, the winding surface is fixed to the upper coil portion 430 of the coil spring that is placed on the stepped surface 360 is fixedly coupled, the molding of the nut is completed.

In this state, the bolt 200 is fastened to the nut 300. First, before the spiral shaft 210 of the bolt 200 is fastened to the nut 300, as shown in FIGS. A portion of the inner diameter of the coil part 410 has a smaller diameter than the inner diameter of the spiral hole 320 by the tightening force of the coil part 410 itself of the spring 400, in this case the coil part 410 The bent end 440 provided at the lower end of the guide hole 370 is in a state in which it is located on the left side of the guide hole which is the winding direction of the coil unit 410.

In the state as described above to fasten the spiral shaft 210 of the bolt to the spiral hole 320 through the lower end of the nut 300, the tip portion of the spiral shaft 210 penetrating the spiral hole 320 The lowest end of the coil portion 410 of the coil spring 400 located in the concave inlet 340 is in contact with the bent end 440, and in this state is formed on the outer periphery of the spiral shaft due to the continuous rotation of the spiral shaft. As the best end portion of the spiral bone is aligned with the end portion of the coil portion 410, as shown in FIG. 3B, the coil portion 410 is forced to open in a state where the diameter is forcibly opened in accordance with the outer diameter of the spiral shaft 210. The coil unit 410 is wound around the outer circumference of the shaft 210.

At this time, when the coil portion 410 is forcibly opened by the outer diameter of the spiral shaft 210 and wound around the spiral shaft 210, the bent end portion 440 provided at the end of the coil portion 410 is guided. In the long hole 370 is to be located in the center according to the gap between the coil portion.

At the same time as the spiral shaft 210 is fastened to the spiral hole 320 of the nut 300 as described above, the coil spring 400 located in the concave inlet 340 surrounds the outer circumference of the spiral shaft 210. When the spiral shaft 210 is closely held by the tightening force, which is the tension force of the coil spring 400, vibration and shock from the outside are applied during use, or the bolt 200 is caused by artificial force. Even if you want to forcibly loosen and nut 300, the bolt and nut will not be loosened will be able to use safely.

If you want to loosen the bolt and nut is completed in the above state is to use the socket 510, which is a loosening means 500 generally used.

That is, as shown in Figure 4b the covering groove portion 520 of the socket 510 covers the circular nut portion 330, the recess groove portion provided between the covering groove portion 520 having the shape of the hexagon The cutting edge 440 of the coil spring 400 is positioned in any one of the recessed grooves 530.

As described above, when the bent end 430 is positioned in the recessed groove 530 and the covering nut 520 of the socket 510 is covered with the circular nut 330, the socket has a hexagonal shape. The hexagonal shape of the covering groove portion 520 and the hexagonal nut portion 310 integrally formed at the lower end of the circular nut portion 330 has a staggered state as shown in FIG. 4B, so that the socket 500 has a circular nut. Only the portion 330 is in the state covered.

In this state, when the bolt 200 is rotated in the state in which the bolt 200 is fixed, the socket spring 510 is rotated in the direction in which the coil spring 400 is released. As a result, the socket 510 is illustrated in FIGS. 3C and 4C. Bent end portion 440 of the coil spring 400 hanging in the recess groove 530 of the) is to be forcibly moved in the right direction of the guide hole 370, as described above due to the forced movement of the bent end coil portion 410 is to be spaced apart from the outer periphery of the spiral shaft 210 while the outside.

When the socket 500 is rotated as described above, as shown in FIG. 3C, the covering groove portion 520 having a hexagonal shape and the hexagon nut portion 310 coincide with each other. In this state, the socket 500 is shown in FIG. 4C. As described above, the covering groove 520 covers the hexagon nut portion 310.

As described above, the bent end portion 440 of the coil portion 410 is caught in the recess 530 of the socket 510, and the coil portion 410 is rotated from the outer circumference of the spiral shaft 210 by rotating the socket. When the covering groove 520 is applied to the hexagon nut part 310 in the state, even if the tension applied to the coil spring 400 is applied even if the force applied to the socket 510 is released, the socket 510 rotates randomly. If not, the coil unit 410 is to be released from the spiral shaft 210 of the nut 300 and the bolt 200 in the state unfolded from the spiral shaft 210 in an easy and undamaged state.

As described above, when the coil spring 400 is forcibly opened on the outer circumference of the spiral shaft 210 by the tension force of the spiral shaft 210, the socket 510 is forcibly opened as described above. The coil spring is finally applied to any one point, in the present invention, the outer coil portion 430 having an outer diameter somewhat wider than the coil portion in the upper coil portion 430 located at the top of the coil portion 410 that is the coil spring 400 The coil spring 410 is forced by the external pressure to be firmly fixed by being wound by the winding surface 360 while being mounted on the stepped surface 360 of the circular nut portion 330 in such a state that the coil spring is forced. It is not applied to only one of the intensive, evenly distributed evenly throughout the upper coil portion 430 having a somewhat larger outer diameter and the coil portion coils even if a strong external pressure is continuously applied The pring 400 will be able to use without being cut.

Another embodiment of the coil spring 400A of the present invention is provided with a plurality of coil parts 410A to surround the spiral shaft 210 of the bolt 200, as shown in Figure 5, the upper end of the coil portion It may be used by forming an upper coil portion 430A extending integrally with the upper coil portion 430A so as to be bent to the stepped surface 360 of the nut 300 by bending outward to have an outer diameter somewhat larger than that of the coil portion.

That is, when the coil portion 410A, which is the coil spring 400A, is positioned in the indentation portion 340 of the nut, the upper coil portion 430A extending to the upper end of the coil portion and being bent toward the outside is the nut 300. ) Will be in the state settled on the stepped surface.

In this state, when the winding part 350 extending upwardly on the outer circumference of the stepped surface is bent inward, the upper coil part 430A secured to the stepped surface 360 by the winding part is firmly secured. It is fixed.

As another first embodiment of the nut 100 of the present invention, as shown in FIGS. 6 and 7, the stepped surface 360 is provided on the circular nut part 330 on which the upper coil part 420 of the coil spring 400 is placed. Equipped with a mounting groove 380 to allow the top coil 430 to be seated in the recessed state, equipped with a cutout 390 on one side of the circular nut 330, Figure 9a As in the upper end of the coil spring 430 of the coil spring is provided with a catching portion 450 to be fitted into the incision, the bent end is located in the guide hole 370 as shown in Figure 9b 440 may be used in a state in which it is bent in two stages so that it can be stably caught without being spaced in the recessed groove 530 of the socket 510.

At this time, the cutout 390 is to allow the catching portion 450 to be caught on one surface, and at the same time the upper coil portion 430 of the coil spring 400 is wound on the stepped surface 360. When the winding is fixed to the 350, the bending point between the extension portion 420 and the upper coil portion 430 is located at the end of the cutout portion 390, as shown in FIG. Not only the tension force of the 410, but also acts together to the tension force of the extension portion 420 extending from the coil portion, the tightening force of the coil spring is further increased.

In the first embodiment of the present invention as described above, the spiral shaft of the bolt is fastened to the nut of the present invention, and the function of closely holding the spiral shaft of the coil spring in the fastened state is the same, but is fastened to the nut 300. When the bolt 200 is to be released, as shown in FIG. 4C, when the covering groove 520 of the socket 510 is covered by the circular nut 330, the bent end 440 in the recessed groove 530. The bent end portion 440 is forcibly pushed by the rotational force of the socket 510 while the coil portion 410 of the coil spring 400 is opened from the outer circumferential edge of the spiral shaft 210 in this state. Since the end 440 is bent in two stages, the bent end portion 440 bent in two stages in the recess groove 530 of the socket 510 which is widely used is stable and is in close contact with the bending end portion 440. ) Is pushed by the socket without being used All.

In addition, the upper coil part 430 provided at the upper end of the coil spring 400 which closely holds the outer circumference of the spiral shaft 210 is wound on the step surface 360 by the winding surface 350. The upper coil portion 430 is more firmly secured by the winding surface 350 in a state in which the winding surface is closely placed in the settling groove 380 provided in the stepped surface 360. The fixing surface is formed, as well as one side of the incision in a state in which the engaging surface 450 bent downward of the upper coil portion 430 is located at the incision 390 provided at one side of the circular nut part 330. Even though artificial force is applied due to external pressure, the wound surface 350 is placed in the stepped surface 360 or the settled groove 380 interposed therebetween even when artificial force is applied by the external pressure. The upper coil part 430 fixed by In the absence of developing states it will be able to use.

Another embodiment of the coil spring 400 of the nut of the present invention as shown in Figure 10a, 10b, even in a state in which the end portion of the bent end portion 430 is bent to the lower or upper portion as bent in two stages It can be used.

As another embodiment of the present invention nut as shown in Figure 11a is to be able to form a locking projection (370a) to take the bent end 440 on one side lower surface of the guide hole 370, As shown in FIGS. 11B and 11C, the locking grooves 370b and c may be formed on one side and the lower surface of the guide hole 370, respectively.

When the bolt 200 and the nut 300 are to be released, it is forcibly pushing the bent end 440 by using the socket 510, or forcibly pushing only the bent end 440 by using another tool. When the bending end portion 440 is caught by the locking protrusion 370a or the locking grooves 370b and c when the coil portion 410 is opened, the coil portion 410 is not present even when the socket 510 is not present. It is possible to maintain the state that is opened from the outer circumference of the spiral shaft 210 is to be able to easily loosen the bolt 200 and the nut (300).

Another second embodiment of the nut of the present invention, as shown in Figure 12 has a spiral hole (320A) that the outer peripheral surface has a hexagonal shape and the spiral shaft 210 of the bolt 200 can be fastened to the center A circular nut portion 330A having a hexagonal nut portion 310A having a hexagonal nut portion 310A, which is integrally extended to an upper surface of the hexagonal nut portion, has an outer circumference having a circular shape, and an inner portion having a recessed portion 340A having an inner diameter relatively wider than that of a spiral hole. A nut (300A) having a winding portion (350A) having a stepped surface (360A) on the upper surface of the recessed portion (340A) of the circular nut portion, and wrapped in an upper coil portion of the coil spring;

It is provided with a top coil portion 430A to be fixed by the winding surface in the state mounted on the stepped surface (360A) of the circular nut portion 330A, and extends in accordance with the lower portion of the top coil portion, than the top coil portion It may be formed as a coil spring 400 formed of a coil portion 410A that can surround the outer circumference of the spiral shaft in a state located in the recess 340A with a small outer diameter.

At this time, the coil portion 410A may be preferably formed within at least 1 coil to 2 coils, and the bottom surface of the coil portion 410A and the bottom surface of the recessed portion 340A may be provided with a predetermined space. A portion 410A is wound along the interval of the spiral bone of the spiral shaft 210 to be wound on the spiral shaft.

In the present invention as shown in FIG. 12A, the upper coil portion 430A, which is the coil spring 400A, is placed on the stepped surface of the circular nut portion 330 in a state in which the bolt 200 is not fastened to the spiral. The coil portion 410A, which is fixed to the winding surface 350A and wound on the winding surface 350A, is integrally extended to the lower portion of the upper coil portion 430A, and the lower portion of the coil portion 340A is located in the recess 340A. Since it is not fixed anywhere in the 300, the inner diameter of the coil portion 410A is reduced by its tension force, and the height is minimized.

In this state, as shown in FIG. 12B, the upper end surface of the spiral shaft 210 penetrating the spiral hole 320 is in contact with the lowermost end of the coil part 410A located at the recessed part 340A. If the spiral shaft 210 is rotated continuously, the end positioned at the lower end of the coil unit 410A is digging into the spiral bone starting point, which is the spiral shaft 210, and the coil unit 410A continues if such a state continues. Is forcibly opened along the outer diameter of the spiral shaft 210 and wound around the spiral shaft 210 in a state in which the interval of the coil portion 410A is widened in accordance with the interval of the spiral bone.

As another third embodiment of the nut of the present invention, as shown in Fig. 13, the outer circumferential surface has a hexagonal shape and a hexagon nut having a spiral hole 320B to which the spiral shaft 210 of the bolt 200 can be fastened at the center thereof. It has a portion 310B, integrally extending on the upper surface of the hexagon nut portion has a circular nut portion 330B having a concave portion 340B having an outer circumference of a circular shape and the inner diameter of the inside is relatively wider than the spiral hole, On the upper surface of the recessed portion 340B of the circular nut portion, the upper portion of the coil spring is provided with a winding portion 350B having a stepped surface 360B so as to be wrapped in a state where the coil spring is placed thereon, and at least three or more incisions are formed in the circular nut portion. A nut 300B having a groove 380B;

It is provided with a top coil portion 430B to be fixed by the winding surface in the state mounted on the stepped surface (360B) of the circular nut portion 330B, and extends in accordance with the lower portion of the top coil portion, than the top coil portion It may be formed as a coil spring (400B) formed of a coil portion 410B that can surround the outer periphery of the spiral shaft in a state to be in close contact with the inner circumference of the concave inlet 340B by a small outer diameter.

As described above, the nut of the present invention has a phenomenon that the coil spring 400B is retracted inward by its tension force, as shown in FIGS. 14A and 15A, before the spiral shaft 210 of the bolt is fastened. The outer diameter of the coil portion 410B is in close contact with the inner circumference of the recess 340B of the portion 330B.

At this time, the outer circumference of the spiral hole 320B is to be in a state of becoming a somewhat larger outer diameter than the inner circumference of the coil portion 410B.

When the spiral shaft 210 is fastened through the spiral hole 320B of the hexagon nut portion 310B in this state, the upper end of the spiral shaft 210 penetrating the spiral hole is located at the recess 340B. It is in contact with the lower end of the coil portion 410B of the coil spring 400B.

If the spiral shaft 210 continues to be rotated in the above state, as shown in FIGS. 14B and 15B, the spiral end portion formed on the outer periphery of the spiral shaft is aligned with the end portion of the coil portion 410B. At this time, the coil portion 410B is wound around the outer circumference of the spiral shaft 210. At this time, the coil portion 410B having the inner diameter smaller than the outer diameter of the spiral shaft 210 is wound. ) Is wound in a state of being forced open, the circular nut portion 330B is provided with a cut-out groove 380B due to a phenomenon that occurs in a state in which the coil portion 410B is in close contact with the inner circumference of the concave portion 340B. The coil part is wound around the outer periphery of the spiral shaft while having a phenomenon that it is forcibly opened together with the coil part toward the outside.

When the coil portion 410B is wound around the outer circumference of the spiral shaft 210 in the above state, the spiral shaft 210 is closely held by the tension force of the coil portion 410B, of course. The coil portion 410B is spirally wound by the force of the circular nut portion 330B, which is forcibly opened by the incision groove 380B, in the state in close contact with the outer circumference of the coil portion due to the phenomenon of coiling. ) Will hold more and more firmly.

200: Bolt 210: Spiral shaft
300: nut 310: hexagon nut part
320: spiral 330: round nut part
340: recessed part 350: wound surface
360: step surface 370: guideman
380: cut 400: coil spring
410: coil part 420: upper coil part
430: bending end 500: loosening means
510: socket 520: covering groove
530: recessed groove

Claims

Urinary indented inwardly from the upper surface in the center, spiral hole having a smaller inner diameter in the center of the lower surface of the indented portion, persimmon having a stepped surface so that the upper end of the coil spring can be fixed to the upper surface on one side Gimbu, a nut made of a long hole to be in a horizontal state on the lower end side of the concave inlet to communicate with the outside so that the lower end of the coil spring can penetrate;
The upper end of the coil is inserted into the concave part of the nut and has an upper coil part fixed in a state of being wound around the winding part, and the lower end of the coil part is formed of a bent end that is bent outward so as to fit in the long hole. In forming the safety lock nut which consists of a coil spring,
The outer peripheral surface of the nut is formed as a hexagon nut portion to have a hexagonal shape at the bottom from the lower surface of the long hole, and the upper surface portion of the hexagon nut portion is formed of a circular nut portion having a circular shape nut.

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The method of claim 1,
And an extension part extending vertically between the coil part forming the coil spring and the upper coil part extending from the upper end of the coil part.

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Urinary indented inwardly from the upper surface in the center, spiral hole having a smaller inner diameter in the center of the lower surface of the indented portion, persimmon having a stepped surface so that the upper end of the coil spring can be fixed to the upper surface on one side Gimbu, a nut made of a long hole to be in a horizontal state on the lower end side of the concave inlet to communicate with the outside so that the lower end of the coil spring can penetrate;
The upper end of the coil is inserted into the concave part of the nut and has an upper coil part fixed in a state of being wound around the winding part, and the lower end of the coil part is formed of a bent end that is bent outward so as to fit in the long hole. In forming the safety lock nut which consists of a coil spring,
The outer circumferential surface of the nut is formed as a hexagon nut part having a hexagonal shape in the lower part from the lower surface of the long hole, and the upper surface portion of the hexagon nut part is formed as a circular nut part having a circular shape, and the circular nut part The locker nut, characterized in that formed in the incision groove vertically from the upper surface as a starting point.

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