KR101845989B1 - Loosing prevntion washer assembly - Google Patents

Abstract

The present invention relates to a loosening prevention washer assembly which comprises a pressurization piece (110), a deformation inclination piece (120), and a contact piece (130), and securely maintains a coupling state of a bolt and a nut without being loosened with a simple composition in which a plurality of loosening prevention protruding pieces (200) are arranged in the deformation inclination piece (120).

Description

{LOOSING PREVNTION WASHER ASSEMBLY}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an anti-loosening washer assembly, and more particularly, to an anti-loosening washer assembly capable of reliably holding a bolt nut in a relatively simple structure without loosening.

The washer is formed in the form of a thin and thin metal plate, and is positioned between the lower surface of the head of the bolt when the object is fixed using the bolt, or between the nut and the object to be fixed fastened to the body of the bolt.

Such a washer can be used for the purpose of forming a flat surface when the surface to be tightened by the bolt is not flat.

And, the washer can be used for the purpose of preventing a groove in the surface if the nut is used alone.

Further, the washer can be used for the purpose of preventing the nut from penetrating when the material is soft like wood.

In addition, the washer is also used for the purpose of preventing the loosening of the fastening force due to vibration. Such a washer includes a spring washer and the like.

However, conventionally, there is a problem that the effect of preventing loosening of the fastening force of the bolt through the spring washer or the like is not satisfied.

In view of the above, a terminal structure having a bolt loosening preventing washer and a bolt loosening prevention function of Patent No. 10-0881671 and a bolt loosening preventing washer and a bolt loosening prevention preventing bolt of Patent No. 10-0881673 Terminal structure with function "and the like.

The prior art has a configuration in which a plurality of pressing members are provided on a flat washer having a rectangular flat plate and are fastened in a state where pressure is applied to the pressing members at the time of bolt fastening, thereby preventing the bolt from being loosened.

However, all of the prior arts have a larger square-shaped area than a conventional disc-shaped washer, and have a plurality of pressing members provided in a washer for preventing loosening, and a plurality of pressing members provided with an upwardly bent portion and a downwardly bent portion, It has a complicated structure.

Since the washer is exposed to an excessively large area outside the head portion of the bolt when the bolt is fastened, it is not good for aesthetics, and unnecessary waste of raw materials due to the manufacturing of the square washer is inevitable, will be.

Particularly, the prior art has a problem that the economic efficiency is very low in the fastener market such as bolt nuts and washers which must maximize the effect at a minimum cost through cost reduction. Therefore, the unit cost of mounting and construction increases exponentially There is a possibility of becoming.

Patent No. 10-0881671 Patent No. 10-0881673

SUMMARY OF THE INVENTION It is an object of the present invention to provide an anti-loosening washer assembly capable of reliably maintaining a fastened state of a bolt nut without being loosened by a relatively simple structure.

To achieve the above object, according to the present invention, there is provided a press-forming apparatus comprising: a pressing piece having an area of a predetermined size to which a lock nut is contacted and having a first through- A truncated cone-shaped warp piece extending downward from an outer edge of the pressing piece and having an inclined angle with respect to the pressing piece as the locking nut is screwed to the body of the bolt, A contact piece extending along the outer edge of the deformed inclined piece and disposed in parallel with the pressing piece; And a plurality of locking nuts which are formed radially on the outer circumferential surface of the deformed inclined piece about the through hole and which are in close contact with the outer surface of the lock nut to be released from the lock nut when the lock nut is screwed toward the head portion side of the bolt, And an anti-loosening washer assembly including the anti-loose washer.

Here, a hermetic member having a communication hole, which is mounted on a lower surface of the pressing piece to allow elastic deformation and communicates with the first through-hole at the upper surface of the pressing piece to which the lock nut is contacted, Further comprising a flat washer which is disposed in contact with the first through hole and is disposed in a straight line with the second through hole being disposed in a straight line with the first through hole, And the hermetic member is in contact with the flat washer when the hermetic member is pressed close to one surface of the fixation target member.

The unlocking protrusion includes a first inclined surface formed to be inclined upwards at a first angle from the deformed inclined piece and a second inclined surface extending downwardly inclined from the end of the first inclined surface to be larger than the first angle with respect to the deformed inclined piece The first inclined surface and the second inclined surface are sequentially disposed along a direction of screw rotation so that the lock nut is fastened to the body portion of the bolt.

The length from the outer edge of each of the first inclined surface and the second inclined surface to the deformed inclined piece is longer than the length from the inner edge of each of the first inclined surface and the second inclined surface to the deformed inclined piece .

The first angle made by the first inclined surface with respect to the deformed inclined piece is smaller than the second angle made with respect to the deformed inclined piece by the second inclined surface, the first angle is 10 to 30 degrees, And the second angle is 40 to 60 degrees.

According to the present invention having the above-described configuration, the following effects can be achieved.

First, the present invention provides a presser comprising: a pressing piece forming an area having a predetermined size in which a lock nut is contacted and having a first through hole through which a body of a bolt penetrates; A truncated cone-shaped warp piece extending downward from an outer edge of the pressing piece and having an inclined angle with respect to the pressing piece as the locking nut is screwed to the body of the bolt, A contact piece extending along the outer edge of the deformed inclined piece and disposed in parallel with the pressing piece; And a plurality of locking nuts which are formed radially on the outer circumferential surface of the deformed inclined piece about the through hole and which are in close contact with the outer surface of the lock nut to be released from the lock nut when the lock nut is screwed toward the head portion side of the bolt, The release preventing function can be reliably performed even with a relatively simple structure, and a reliable fastening state between the lock nut and the bolt body portion can be maintained.

In particular, the present invention improves work productivity by reducing unnecessary use of raw materials compared to the prior arts and relieving the lock nut from the complicated structure more than necessary, thereby preventing the loosening of the lock nut from being maintained and adhered tightly. Will be able to plan.

In addition, according to the present invention, the operator can intuitively grasp the skill of the present invention regardless of proficiency, and can easily and quickly perform the fastening work efficiently, thereby greatly improving the convenience of the work.

According to the present invention, there is provided a sealing apparatus comprising: a hermetic member having a communication hole communicating with the first through-hole at the center thereof, the hermetic member being mounted on a lower surface of the pressing piece, Further comprising a flat washer which is disposed in contact with one surface of the fixation target member and has a second through hole disposed in a straight line and aligned with the first through hole at a center thereof, And the hermetic member is brought into contact with the flat washer when the pressing piece is pressed close to one surface of the fixation target member, thereby preventing the release washer from loosening, Maintenance will be able to further amplify the unwinding ability.

The release preventing protrusion according to the present invention may further include a first inclined surface formed to be inclined upwards at a first angle from the deformed inclined piece and a second inclined surface extending downwardly inclined from the end of the first inclined surface, Wherein the first inclined surface and the second inclined surface are sequentially disposed along a direction of screw rotation so that the lock nut is engaged with the body portion of the bolt, It is possible to provide a reliable product to a consumer by forming a loosening prevention structure with the convenience of fastening.

According to the present invention, the length from the outer edge of each of the first inclined surface and the second inclined surface to the deformed inclined piece can be set so that the length from the inner edge of each of the first inclined surface and the second inclined surface to the inclined inclined surface The lock nut can be prevented from being loosened during the fastening process and can be reliably advanced to the fastened state, and at the same time, the convenience of fastening is ensured and at the same time, a reliable loosening preventing structure is formed, It will be possible to provide reliable products to consumers.

The first angle made by the first inclined surface with respect to the deformed inclined piece according to the present invention is smaller than the second angle made with respect to the deformed inclined piece by the second inclined surface, And the second angle is appropriately applied and modified in the range of 40 to 60 degrees, thereby improving the convenience of fastening and preventing loosening, thereby helping to maintain a firm and secure fastened state.

1 (a) is a conceptual view of a side sectional view, and FIG. 1 (b) is a plan view of a planar washer assembly according to an embodiment of the present invention.
FIG. 2 is a schematic view of a disassembly side sectional view schematically showing a state in which an unlocking washer assembly according to an embodiment of the present invention is fastened to a fixing target member by a bolt and a lock nut
3 (a) and 3 (b) show a state in which the unlocking washer assembly according to an embodiment of the present invention is fastened to the object to be fastened by the bolt and the lock nut, The side cross-sectional conceptual diagram
FIG. 4 is a plan view showing a state in which the lock nut is fastened in an unlocking state by an unlocking washer assembly according to an embodiment of the present invention, as viewed from the viewpoint of FIG. 3 (b)
FIG. 5 is a side elevational view showing the perspective of the unlocking prevention stone, which is a main part of the unlocking washer assembly according to the embodiment of the present invention, viewed from the viewpoint of FIG. 1 (b)
6 is a perspective view showing the overall appearance of the anti-loose stone member, which is a main part of the anti-loose washer assembly according to the embodiment of the present invention.
7 is a perspective view showing the overall appearance of the anti-loose stone member, which is a main part of the unlocking washer assembly according to another embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish them, will become apparent by reference to the embodiments described in detail below with reference to the accompanying drawings.

However, the present invention is not limited to the embodiments described below, but may be embodied in various other forms.

The present embodiments are provided so that the disclosure of the present invention is thoroughly disclosed and that those skilled in the art will fully understand the scope of the present invention.

And the present invention is only defined by the scope of the claims.

Thus, in some embodiments, well known components, well known operations, and well-known techniques are not specifically described to avoid an undesirable interpretation of the present invention.

In addition, throughout the specification, like reference numerals refer to like elements, and the terms (mentioned) used herein are intended to illustrate the embodiments and not to limit the invention.

In this specification, the singular forms include plural forms unless the context clearly dictates otherwise, and the constituents and acts referred to as " comprising (or having) " do not exclude the presence or addition of one or more other constituents and actions .

Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs.

Also, commonly used predefined terms are not ideally or excessively interpreted unless they are defined.

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

First, FIG. 1 shows a general configuration of an unclamping washer assembly according to an embodiment of the present invention. FIG. 1 (a) is a side sectional schematic view, and FIG. 1 (b) is a planar schematic view.

2 is a schematic exploded side sectional view schematically showing a state in which the unlocking washer assembly according to the embodiment of the present invention is fastened to the fixing target member 700 by the bolt 400 and the lock nut 300 .

3 shows a process in which the unlocking washer assembly according to an embodiment of the present invention is fastened to the fixing target member 700 by the bolts 400 and the lock nuts 300. FIG. Fig. 3 (b) is a side cross-sectional view showing the fastened state. Fig.

4 is a plan view showing a state in which the lock nut 300 is fastened in the unlocking state by the unlocking washer assembly according to an embodiment of the present invention, as viewed from the time point IV in FIG. 3 (b).

5 is a side elevational view showing a side view of the release preventing protrusion 200, which is a main part of the release preventing washer assembly according to an embodiment of the present invention, as viewed from the V view of FIG. 1 (b).

6 is a perspective view showing the overall appearance of the release preventing protrusion 200, which is a main part of the release preventing washer assembly according to the embodiment of the present invention, and FIG. 7 is a perspective view of the release preventing washer assembly according to another embodiment of the present invention. Which is a main part of the release preventing projection 200 shown in FIG.

The curved arrows indicated by the one-dot chain line in FIG. 1 (b), FIG. 6, and FIG. 7 indicate the directions in which the lock nut 300 is screwed so as to be locked with respect to the body 410 of the bolt 400, Indicates a direction in which the lock nut 300 is screwed so as to be released relative to the body portion 410 of the bolt 400. As shown in Fig.

In Fig. 3 (a), "ⓧ" on the left side of the figure indicates a direction away from the ground surface of the reader, and "⊙" on the right side of the figure indicates a direction approaching the reader from the ground. 6A and 6B and the curved arrows indicated by the dashed lines shown in FIGS. 6A and 6B and FIG. 7B.

In addition, the unlocking washer 100 according to the preferred embodiment of the present invention includes the bolts 400 and the first and second members 710 and 720 for maintaining the laminated state of the first member 710 and the second member 720, Lock nut 300 and the like.

The unlocking washer 100 according to an embodiment of the present invention includes a pressing piece 110, a deformed inclined piece 120 and a contact piece 130 as shown in the drawing, It can be understood that the loosening preventing pieces 200 are arranged.

First, the pressing piece 110 forms an area having a predetermined size in which the lock nut 300 is contacted, and a first through hole 111 through which the body 410 of the bolt 400 passes is provided at the center.

The lock nut 300 is screwed to the body portion 410 of the bolt 400 while the lock nut 300 is screwed to the body portion 410 of the bolt 400. When the lock nut 300 is screwed to the body portion 410 of the bolt 400, The inclination angle with respect to the pressing piece 110 is varied.

The contact piece 130 extends along the outer edge of the deformed inclined piece 120 and is disposed in parallel with the pressing piece 110 to form a contact surface with a flat washer 600 to be described later, Thereby preventing the lock nut 300 from being loosened.

The plurality of unlocking protrusions 200 are radially formed on the outer circumferential surface of the deformed inclined piece 120 with respect to the through hole so that the lock nut 300 is moved in a screwing direction toward the head portion 420 side of the bolt 400 The lock nut 300 is tightly attached to the outer surface of the lock nut 300 to restrict the release of the lock nut 300.

Therefore, in the unlocking washer 100, the pressing piece 110 through which the first through hole 111 is passed is protruded upward by the deformed inclined piece 120, and the contact piece 120, which is the edge portion, .

The pressing piece 110 is inserted into the flat washer 600 or the fixing target member 700 to be described later by the locking nut 300. The pressing piece 110 is elastically deformed and elastically restored to a predetermined degree, The resilient repulsive force that pushes the lock nut 300 away from the flat washer 600 or one surface of the fixation target member 700 is generated.

Therefore, the deformed inclined piece 120 is primarily for helping to maintain a strong fastening force of the lock nut 300 with respect to the body portion 410 of the bolt 400. [

1 to 3, the present invention may further include a hermetic member 500 for improving the anti-loosening performance and hermeticity of the hermetic member 500 according to the close frictional force, The flat washer 600 may be further provided.

The hermetic member 500 is mounted on the lower surface of the pressing piece 110 with respect to the upper surface of the pressing piece 110 to which the lock nut 300 is to be contacted to allow the elastic deformation and communicates with the first through hole 111 at the center And a communication hole (510).

The flat washer 600 is disposed in contact with one surface of the fixation target member 700 and has a second through hole 610 formed through the center thereof in a straight line with the first through hole 111.

3 (a), the lock nut 300 is screwed as close as possible to the head portion 420 side of the bolt 400, The airtightness member 500 is brought into contact with the flat washer 600. As shown in Fig.

3 (a), when the threaded washer 100 and the lock nut 300 are fastened to the body 410 of the bolt 400, the lock nut 300 is unlocked And is not in contact with the protrusion 200.

However, when the worker applies the fastening force to continuously rotate the lock nut 300 with respect to the body portion 410, the pressing piece 110 gradually descends toward the fixation target member 700, and at the same time, The inclination angle with respect to the fixed object member 700 is also reduced as shown in Fig. 3 (b).

Since the hermetic member 500 disposed on the lower surface of the pressing piece 110 comes into close contact with the flat washer 600 closely attached to the lower surface of the contact piece 130, frictional force is generated. It is possible to provide a certain degree of help to prevent the body 300 from being unwound from the body portion 410.

1 (b) and FIGS. 4 to 7, it can be understood that the release preventing protrusion 200 includes the first and second inclined surfaces 210 and 220.

The first inclined surface 210 is formed to be inclined upward at a first angle? 1 from the deformed inclined piece 120 and the second inclined surface 220 is formed to extend downwardly inclined from the end of the first inclined surface 210, 2 that is larger than the first angle? 1 with respect to the flake 120. The second angle?

The first inclined surface 210 and the second inclined surface 220 are sequentially disposed along the direction of screw rotation so that the lock nut 300 is fastened to the body 410 of the bolt 400.

At this time, when the lock nut 300 is fastened to the body 410 of the bolt 400 and is screwed as far as the head 420 of the bolt 400 as shown in FIG. 4, the first inclined surface 210 and the second The inner edge 201 of each of the slopes 220, that is, the inner edge 201 of the anti-loose protuberance 200, is fitted to the outer surface of the lock nut 300 having a polygonal columnar shape or to the outer surface of the head of the bolt 400 When it comes into contact, it is in the loosening prevention state.

Therefore, the outer surface of the lock nut 300 is prevented from being unwound in the reverse direction of the fastening direction by closing the fastening state when the outer circumferential surface of the lock nut 300 abuts against the inner edge 201 of the release preventing projection 200 as described above.

Here, the inner edge of each of the first inclined surface 210 and the second inclined surface 220 refers to an edge near the first through hole 111 as shown in Figs. 1 (b) and 4, that is, Refers to the edge through which the imaginary line (l) passing through both side edges of each of the first inclined surface 210 and the second inclined surface 220 from the central portion of the first inclined surface 210 and the second inclined surface 220 passes first.

One end of the first inclined surface 210 which is inclined upward with respect to the deformed inclined piece 120 is bent in the locking direction when the lock nut 300 is rotated in the locking direction with respect to the body 410 of the bolt 400 As shown in FIG.

The deformed inclined piece 120 side end portion 221 of the second inclined surface 220 formed to be inclined downward from the other end of the first inclined surface 210 is formed in a state in which the lock nut 300 is inserted into the body portion of the bolt 400 410 will be the contact inlet 221 in the unwinding direction when rotated in the unwinding direction.

The first angle? 1 formed by the first inclined surface 210 with respect to the deformed inclined piece 120 is a second angle? 1 formed by the second inclined surface 220 with respect to the deformed inclined piece 120 2 and the second angle? 2 within the range of 40 to 60 degrees, respectively, within a range of 10 to 30 degrees, and an application and a deformation design may be possible.

Here, if the first angle [theta] 1 is less than 10 degrees, even if the second angle [theta] 2 is made as large as possible, the loosening preventing function of the loosening preventing flap 200 can not be performed smoothly.

At this time, when the first angle? 1 exceeds 30 degrees, a large torque is required to rotate the lock nut 300 in the locking direction with respect to the body portion 410 of the bolt 400, The lock nut 400 and the lock nut 300 are overloaded.

If the second angle? 2 is less than 40 degrees, the release preventing function of the release preventing protrusion 200 can not be smoothly performed, and the lock nut 300 can be easily loosened.

If the second angle? 2 exceeds 60 degrees, the lock nut 300 may not be loosened when it is loosened from the body 410 of the bolt 400.

The length h1 from the outer edge 202 of each of the first inclined surface 210 and the second inclined surface 220, that is, the outer edge 202 of the anti-loose piece 200 to the deformed inclined piece 120, And the length h2 from the inner edge 201 to the deformed inclined piece 120 of the release preventing protrusion 200 as shown in Figs. 6 and 7.

The third angle? 3 (see FIG. 6 and FIG. 7) formed by the outer edge 202 of the anti-loose piece 200 with respect to the deformed inclined piece 120 is appropriately selected within the range of 10 to 30 degrees Application and deformation design will be possible.

When the third angle? 3 is less than 10 degrees, when the lock nut 300 is screwed in the unlocking direction with respect to the body 410 of the bolt 400, the lock nut 300 may be easily rotated and loosened.

When the third angle? 3 exceeds 30 degrees, when the lock nut 300 is screwed in the locking direction with respect to the body 410 of the bolt 400 or when the screw is rotated in the unlocking direction, excessive torque The bolt 400 and the lock nut 300 may be overloaded.

6, the release preventing protrusion 200 may be welded to the deformed inclined piece 120, or may be formed by cutting a part of the outer circumferential surface of the deformed inclined piece 120 as shown in FIG. 7 will be.

7, the lock nut 300 rides on the first inclined surface 210 to protrude from the second inclined surface 220 so that the second inclined surface 220 faces the first inclined surface 210, Since the elastic deformation of a certain degree is allowed in the process of being fastened in the locking direction in which it slides down, the fastening in the locking direction can be achieved.

The process of forming the release preventing protrusion 200 will be briefly described below.

First, the worker inserts the outer edge 202 of the anti-loose protuberance 200, the one end 211 of the first inclined surface 210 formed to be inclined upward with respect to the deformed inclined piece 120, the first inclined surface 210, A part of the outer circumferential surface of the deformed inclined piece 120 is incised so as to be inclined so as to correspond to the end portion 221 of the second inclined surface 220 which is formed to be inclined downward from the other end of the deformed inclined piece 120.

The operator then folds the first inclined surface 210 and the second inclined surface 220 to form the first inclined surface 210 and the second inclined surface 220 by bending the connecting edge 215 of the first inclined surface 210 and the second inclined surface 220, ) Is completed.

Hereinafter, the operation and effect of the unclamping washer assembly according to the preferred embodiment of the present invention will be described as follows.

The present invention provides a presser foot 110 having a first through hole 111 through which a body portion 410 of a bolt 400 passes, ; The inclined angle of the lock nut 300 with respect to the pressing piece 110 is varied as the pressing nut 110 is slidably extended from the outer edge of the pressing piece 110 and the pressing nut 110 is screwed on the body 410 of the bolt 400, A truncated cone shaped warp piece 120; A contact piece 130 extending along the outer edge of the deformed inclined piece 120 and disposed in parallel with the pressing piece 110; And the lock nut 300 is radially formed on the outer circumferential surface of the deformed inclined piece 120 about the through hole and when the lock nut 300 is screwed toward the head portion 420 side of the bolt 400, And a plurality of loosening preventing protrusions (200) tightly attached to the lock nut (300) so as to restrict the loosening of the lock nut (300). The loosening preventing function can be reliably performed even with a relatively simple structure, It will be possible to maintain a secure fastened state between the body 300 of the bolt 400 and the body portion 410 of the bolt 400.

Particularly, according to the present invention, unlike the prior art, unnecessary use of raw materials and more complicated structures than necessary can be avoided and the lock nut 300 can be reliably prevented from being loosened by keeping the lock nut 300 in a fixed state. And work productivity can be improved.

In addition, according to the present invention, the operator can intuitively grasp the skill of the present invention regardless of proficiency, and can easily and quickly perform the fastening work efficiently, thereby greatly improving the convenience of the work.

According to the present invention, the lock nut (300) is mounted on the lower surface of the pressing piece (110) with respect to the upper surface of the pressing piece (110) to be contacted to allow elastic deformation and communicates with the first through hole And a second through hole 610 disposed in contact with one surface of the fixation target member 700 and disposed in a straight line with the first through hole 111 through the through hole 510 The lock nut 300 is screwed as close as possible to the head portion 420 side of the bolt 400 so that the pressing piece 110 contacts the surface of the fixation target member 700 The hermetic member 500 is brought into contact with the flat washer 600 so that the frictional force of the hermetic member 500 relative to the flat washer 600 It is possible to further amplify the loosening preventing ability by maintaining the tight contact state.

The release preventing protrusion 200 according to the present invention includes a first inclined surface 210 formed upwardly inclined at a first angle? 1 from the deformed inclined piece 120 and a second inclined surface 210 inclined upward from the end of the first inclined surface 210 And a second inclined surface 220 extending obliquely and forming a second angle? 2 larger than the first angle? 1 with respect to the deformed inclined piece 120. The first inclined surface 210 and the second inclined surface 220 Is arranged sequentially along the direction of screw rotation so that the lock nut 300 is fastened to the body 410 of the bolt 400. This provides convenience of fastening and provides a reliable loosening preventing structure, To the consumer.

The outer edge 202 of each of the first inclined surface 210 and the second inclined surface 220, that is, the outer edge 202 of the anti-loose-proof piece 200 to the deformed inclined piece 120, The length h1 is formed to be longer than the length h2 from the inner edge 201 of the anti-loose piece 200 to the deformed inclined piece 120 so that the lock nut 300 is idle during the fastening process It is possible to provide a reliable product and to provide the user with a reliable product by forming a reliable anti-loosening structure at the same time as facilitating the fastening.

The first angle? 1 formed by the first inclined surface 210 with respect to the deformed inclined piece 120 is greater than the second angle? 1 formed by the second inclined surface 220 with respect to the deformed inclined piece 120 2 and the first angle? 1 is 10 to 30 degrees and the second angle? 2 is appropriately applied and modified in the range of 40 to 60 degrees, thereby improving the convenience of fastening and preventing loosening It can help to maintain a firm and firm connection.

As described above, it is understood that the present invention is based on a technical idea to provide a loosening preventing washer assembly that can reliably maintain a fastened state of a bolt nut without being loosened in a relatively simple structure.

It will be apparent to those skilled in the art that many other modifications and applications are possible within the scope of the basic technical idea of the present invention.

100 ... anti-loosening washer
110 ... pressurizing piece
111 ... 1st hole
120 ... deformed warp yarn
130 ... contact piece
200 ... Anti-loose stone
201 ... the inner edge of the anti-loose stone (200)
202 ... outer edge of the anti-loose protuberance (200)
210 ... first inclined surface
211 ... contact opening in the locking direction (one end of the first inclined surface 210)
215 ... the edge of the connecting portion between the first inclined surface 210 and the second inclined surface 220
220 ... second slope
221 ... contact inlet in the unwinding direction (end portion of the second inclined surface 220 on the deformation piece 120 side)
300 ... Lock nut
400 ... bolts
410 ... body portion
420 ... head portion
500 ... airtight member
510 ... communication hole
600 ... Flat washer
610 ... second through hole
700 ... fixed object member
710 ... first member
720 ... second member
h1 ... the length from the outer edge of each of the first inclined surface 210 and the second inclined surface 220 to the deformed inclined piece 120
h2 ... the length from the inner edge of each of the first inclined surface 210 and the second inclined surface 220 to the deformed inclined piece 120
ℓ ... virtual line
? 1 ... first angle
? 2 ... second angle
? 3 ... third angle

Claims (5)

A pressing piece which forms an area of a certain size in which the lock nut is contacted and has a first through hole through which the body of the bolt passes;
A truncated cone-shaped warp piece extending downward from an outer edge of the pressing piece and having an inclined angle with respect to the pressing piece as the locking nut is screwed to the body of the bolt,
A contact piece extending along the outer edge of the deformed inclined piece and disposed in parallel with the pressing piece; And
The lock nut is radially formed on the outer circumferential surface of the deformed inclined piece about the first through hole, and when the lock nut is screwed toward the head portion of the bolt, the lock nut is tightly fitted to the outer surface of the lock nut, A plurality of release preventing protrusions;
≪ / RTI >
A plurality of said release preventing protrusions
A first inclined surface formed to be inclined upward at a first angle from the deformed inclined piece,
And a second inclined surface extending downward from the end of the first inclined surface to form a second angle larger than the first angle with respect to the deformed inclined piece, wherein the first inclined surface and the second inclined surface are inclined with respect to the lock nut And sequentially arranged along a direction of screw rotation to be fastened to the body portion of the bolt,
Wherein the release preventing protrusion is formed by cutting a part of an outer peripheral surface of the deformed inclined piece,
Wherein a part of the outer circumferential surface of the deformed inclined piece has an outer edge of the release preventing stone piece, one end of a first inclined surface which is inclined upward with respect to the deformed inclined piece, and a second inclined surface which is inclined downward from the other end of the first inclined surface And is inclinedly projected so as to correspond to the end portion on the side of the deformed inclination of the end portion,
Wherein the first inclined surface and the second inclined surface are formed by bending corners of a connecting portion between the first inclined surface and the second inclined surface,
Wherein the locking nut is allowed to elastically deform to a certain degree in a locking direction in which the locking nut slides on the first inclined surface and slides down the second inclined surface, When the lock nut is fastened to the body portion of the bolt and is screwed to the head portion side of the bolt, the inner edge of the anti-loose stone piece (the inside edge of each of the first inclined surface and the second inclined surface Wherein the outer surface of the lock nut is in contact with the outer surface of the lock nut or the outer surface of the head of the bolt.
The method according to claim 1,
A sealing member mounted on the lower surface of the pressing piece against the upper surface of the pressing piece to which the lock nut is contacted and having a communicating hole communicating with the first through hole at the center thereof,
Further comprising: a flat washer which is disposed in contact with one surface of the fixation target member and through which a second through hole is disposed at a center and aligned with the first through hole,
Wherein the hermetic member is in contact with the flat washer when the lock nut is screwed to the head portion side of the bolt so that the pressing piece is pressed to contact one surface of the fixation target member.
delete The method according to claim 1,
The length from the outer edge of each of the first inclined face and the second inclined face to the deformed inclined piece is longer than the length from the inner edge of each of the first inclined face and the second inclined face to the deformed inclined piece Release Release Washer Assembly.
The method according to claim 1,
The first angle made by the first inclined surface with respect to the deformed inclined piece is smaller than the second angle made with respect to the deformed inclined piece by the second inclined surface,
Wherein the first angle is 10 to 30 degrees,
And the second angle is 40 to 60 degrees.

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