KR20170045049A - Fasteners with a magnet - Google Patents

Fasteners with a magnet Download PDF

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Publication number
KR20170045049A
KR20170045049A KR1020150144965A KR20150144965A KR20170045049A KR 20170045049 A KR20170045049 A KR 20170045049A KR 1020150144965 A KR1020150144965 A KR 1020150144965A KR 20150144965 A KR20150144965 A KR 20150144965A KR 20170045049 A KR20170045049 A KR 20170045049A
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KR
South Korea
Prior art keywords
groove
ring member
coupling ring
magnet
coupled
Prior art date
Application number
KR1020150144965A
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Korean (ko)
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KR101868361B1 (en
Inventor
손정희
우승완
Original Assignee
손정희
우승완
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Priority to KR1020150144965A priority Critical patent/KR101868361B1/en
Publication of KR20170045049A publication Critical patent/KR20170045049A/en
Application granted granted Critical
Publication of KR101868361B1 publication Critical patent/KR101868361B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00—Locking of screws, bolts or nuts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
    • F16B35/06—Specially-shaped heads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B37/00—Nuts or like thread-engaging members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B37/00—Nuts or like thread-engaging members
    • F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
    • F16B37/041—Releasable devices

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)

Abstract

The present invention can easily couple magnets and fasteners to a fastener such as a nut or a bolt in order to improve the coupling force with the object to be coupled, The present invention relates to a fastener having a magnet whose structure is improved so that it can be maintained.
A fastener having a magnet according to the present invention comprises: a bolt having a head part and a threaded part formed to extend to one side of the head part; An accommodating groove portion formed concavely on one side of the head portion; A magnet member coupled to be received in the receiving groove; And a coupling ring member fitted to the outer circumferential surface of the magnet member and coupled to the inner circumferential surface of the receiving groove portion via coupling means.

Description

FASTENERS WITH A MAGNET}

The present invention relates to a fastener having a magnet, and more particularly, to a fastener having a magnet and a fastener such as a nut or a bolt, To a fastener having a magnet having an improved structure so as to firmly hold the coupling between the magnet and the fastener after the fastening.

Generally, since it is common to join a plurality of members with bolts and nuts in a living area or an industrial field to make a target, the bolts / nuts are loosened And is trying to prevent the phenomenon.

Prior art for this purpose is disclosed in Publication No. 10-2008-0007062 "Nut loosening prevention device ".

In addition to this, many inventions and designs and bolts and nuts to prevent bolt / nut loosening have been developed and used as products.

The loosening phenomenon of the bolt and nut is a phenomenon in which the nut, which is short in length and is not pressed, is released from the bolt due to vibration or the like.

Therefore, when bolts and nuts are attached, they rotate in the same direction, so that loosening of the bolts / nuts can be suppressed.

Another prior art for solving this problem is disclosed in Korean Patent Laid-Open No. 10-2008-0021745 entitled " Magnet for Fixing a Bolt / Nut "(Published Date: Mar. 07, 2008), a bolt hole A ring magnet is attached to the annular face of one side of the annular face with one of the markings of the belt or point or arrow and the annular magnet is attached to the back of the bolt head or the back face of the bolt or the magnet is inserted into the annular magnet, It forms a nut.

Meanwhile, another prior art of a fastener to which magnets are coupled is disclosed in Korean Registered Utility Model Registration No. 20-0395383 entitled " fastener using magnets "(registered on September 21, 2005) Wherein the bolt and the nut each include a magnet in a fastener comprising a bolt and a nut fastened to the threaded portion.

In addition, an anchoring portion is formed on the lower surface of the head portion of the bolt so that the magnet is sandwiched therebetween, and a stopping jaw is formed on the entrance side of the anchoring portion so that the magnet does not come off.

However, in the prior art, when an adhesive is used in the process of bonding a magnet to a bolt or a nut, there is a possibility that foreign matter enters the bonding portion or is separated according to the volume change due to the temperature change. It is difficult to assemble the magnet to the hooking jaw portion in the process of coupling, and the magnet may be easily detached from the groove portion.

Korean Patent Laid-Open No. 10-2008-0021745 entitled "Magnet for Fixing a Bolt / Nut" (Published Date: Mar. 07, 2008) Korean Registered Utility Model Registration No. 20-0395383 entitled "Fastener using magnets" (Registered on September 2, 2005)

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and its object is to provide a magnet and a fastening hole in a structure for coupling a magnet to a fastener such as a nut or a bolt to improve the coupling force with the object. And it is an object of the present invention to provide a fastener having a magnet whose structure is improved so as to firmly hold the coupling between the magnet and the fastener after the fastening.

According to an aspect of the present invention, there is provided a bolt having a head portion, a screw portion extending to one side of the head portion, and a flange portion extending outward from a connection portion between the head portion and the screw portion; An accommodating groove portion formed concavely on one side of the flange portion; A magnet member coupled to be received in the receiving groove; And a coupling ring member fitted to the outer circumferential surface of the magnet member and coupled to the inner circumferential surface of the receiving groove portion via coupling means.

The coupling ring member has a through hole formed at the center thereof to receive the outer circumference of the magnet member and protrudes toward the center from the inner side surface of the through hole to form a locking protrusion interfering with a rim portion of the magnet member.

Wherein the engaging means comprises a female screw thread formed on an inner circumferential surface of the receiving groove and a male screw thread formed on the outer circumference of the engaging ring member so as to correspond to the female screw thread.

Wherein the engaging means comprises: a fitting groove formed by a concave groove formed on an inner circumferential surface of the receiving groove portion and having a vertical groove formed to be open to the outside and a horizontal groove formed to open laterally from the end of the vertical groove; A locking protrusion formed to protrude from the outer circumference of the coupling ring member to enter the vertical groove of the fitting groove when the coupling ring member enters the receiving groove and to be fitted into the horizontal groove upon rotation of the coupling ring member; Respectively.

The coupling ring member further includes a handle formed to protrude from one side surface.

The coupling ring member further includes a recessed groove formed at one side thereof.

And the coupling ring member is made of a metal material which reacts with the magnetic force of the magnet member.

According to another aspect of the present invention, there is provided an electronic apparatus comprising: a head; a bolt having a threaded portion extending to one side of the head; An accommodating groove portion formed concavely on one side of the head portion; A magnet member coupled to be received in the receiving groove; And a coupling ring member fitted to the outer circumferential surface of the magnet member and coupled to the inner circumferential surface of the receiving groove portion via coupling means.

According to another aspect of the present invention, there is provided a nut comprising: a nut having a fastening hole formed with a female screw so as to penetrate and fasten an end of a bolt at a center thereof and having an extended protrusion extending outwardly on one side; A recessed groove formed on one side of the extended protrusion; A magnet member coupled to be received in the recess; And a coupling ring member which is engaged with the outer circumferential surface of the magnet member and is coupled to the inner circumferential surface of the holder groove portion through coupling means.

According to another aspect of the present invention, there is provided a nut comprising: a nut having a fastening hole formed at a center thereof with a female screw threaded through an end of the bolt; A recessed groove formed on one side of the nut; A magnet member coupled to be received in the recess; And a coupling ring member which is engaged with the outer circumferential surface of the magnet member and is coupled to the inner circumferential surface of the holder groove portion through coupling means.

The present invention relates to a bolt 100 or a bolt 100 facing a surface of a material P to be bonded in order to prevent loosening of the bolt 100 due to vibration transmitted from the object P, The coupling member 400 coupled to the magnet member 300 is coupled to the coupling groove 400 in the housing groove 210 or the recessed groove 12 formed on one side by the screw coupling method, The magnet member 300 can be coupled to the coupling member such as the bolt 100 or the nut 10 without forming a screw thread on the magnet member 300. Thus, The magnet member 300 can be easily and firmly coupled to the bolt 100 or the nut 10 and the fastener can be fixed to the engaged member P using the magnetic force of the magnet member 300. [ So that it is possible to prevent the bolt 100 from loosening even if vibration is generated It can have a useful effect in.

1 is a perspective view showing a first embodiment of a fastener having a magnet according to the present invention;
2 is a sectional view of Fig. 1;
3 is a sectional view of the coupling state of Fig. 1;
4 is a cross-sectional view showing a state in which the engagement jaw is formed on the coupling ring member of the present invention.
5 is a perspective view showing a modified example in which a gripping groove is formed in the coupling ring member of the present invention.
Fig. 6 is a sectional view of Fig. 5; Fig.
Figure 7 is a use state view of a variant of the present invention;
8 is a cross-sectional view showing a state in which a coupling ring is formed in a coupling ring member according to a modification of the present invention.
9 is a perspective view showing a second embodiment of a fastener having a magnet according to the present invention.
10 is a sectional view of Fig.
11 is a perspective view showing a third embodiment of a fastener having a magnet according to the present invention.
12 is a sectional view of Fig. 11;
13 and 14 are a perspective view and a cross-sectional view showing a fourth embodiment of a fastener having a magnet according to the present invention.
15 and 16 are a perspective view and a cross-sectional view showing a fifth embodiment of a fastener having a magnet according to the present invention;

1 to 8, a fastener having a magnet according to the present invention includes a head part 110, a thread part 120 formed to extend to one side of the head part 110, A bolt 100 having a flange portion 130 extending outward from a connection portion between the head portion 110 and the screw portion 120; A receiving groove 210 formed concavely on one side of the head 110; A magnet member 300 coupled to be received in the receiving groove 210; And a coupling ring member 400 which is fitted on the outer circumferential surface of the magnet member 300 and is coupled to the inner circumferential surface of the receiving groove 210 through coupling means.

More specifically, the bolt 100 includes a threaded portion 120 having a thread on an outer peripheral surface thereof, a head portion 110 having a diameter larger than the diameter of the threaded portion 120, The flange portion 130 has a structure in which the receiving groove 210 is concavely formed on the surface of one side of the flange 130 facing the threaded portion 120.

The magnet member (300) has an annular structure in which a hollow is formed at the center so that the threaded portion (120) of the bolt (100) penetrates.

The coupling ring member 400 has a structure in which a through hole 405 through which the outer periphery of the magnet member 300 is inserted is formed at the center.

It is preferable that the coupling ring member 400 has a thickness corresponding to the thickness of the magnet member 300. That is, one side surface of the magnet member 300 disposed in the receiving groove 210 by the coupling ring member 400 is positioned at a position close to the surface of the object P to be coupled through the bolt 100 The magnetic force of the magnet member 300 is caused to react with the object P to be bonded and the bolt 100 can be prevented from being loosened even if vibration is generated from the object P to be bonded.

4 and 8, the coupling ring member 400 is formed to protrude from the inner side of the through hole 405 to the central side, and is engaged with the engaging jaws (not shown) interfering with the rim portion of the magnet member 300 And the engaging step 420 has an advantage that it is possible to prevent the outward deviation of the magnet member 300 coupled to the receiving groove 210.

The coupling ring member 400 is preferably made of a metal material capable of reacting with the magnetic force of the magnet member 300. In this case, the coupling ring member 400, which is a metal material, is attached to the magnet member 300 by the magnetic force of the magnet member 300, thereby preventing the magnet member 300 from coming off.

The engaging means includes a female thread 215 formed on the inner circumferential surface of the receiving groove 210 and a male thread 415 formed to correspond to the female thread 215 around the outer circumference of the coupling ring 400. [ The coupling ring member 400 is coupled to the receiving groove 210 in a screwing manner so that the magnet member 300 is received in the receiving groove 210 by rotating the coupling ring member 400 in the receiving groove 210, And is assembled to be accommodated in the groove portion 210.

The coupling ring member 400 further includes a handle 410 formed to protrude from one side of the coupling ring member 400 using the coupling means described above, .

5 and 6, the coupling ring member 400 may further include a gripping groove 450 recessed on one side of the handle 410. As shown in FIG.

The gripping grooves 450 are recessed in one side and are rotated into a gripping groove 450 by rotating another tool in a state where the gripping grooves 450 are introduced into the gripping grooves 450 by using a separate tool, 210).

The present invention having such a configuration is configured such that when the outer circumferential periphery of the magnet member 300 is fitted in the through hole 405 of the coupling ring member 400 and the coupling protrusion 420 is formed on the inner surface of the through hole 405 One side edge of the magnet member 300 is brought into close contact with the engaging jaw 420 to limit the one-way movement of the magnet member 300. [

Thereafter, when the coupling ring member 400 to which the magnet member 300 is coupled is rotated while being introduced into the receiving groove 210, the male thread 415 formed on the outer periphery of the coupling ring member 400 is inserted into the receiving groove 210 The magnet member 300 is engaged with the coupling ring member 400 and the coupling ring member 400 is screwed into the female screw thread 215 formed on the inner circumferential surface of the bolt 100. As a result, And is accommodated in the receiving groove 210 in a state of being fitted in the receiving groove 210.

The annular magnet member 300 is assembled such that the outer peripheral edge of the annular magnet member 300 is accommodated in the receiving groove 210 in a state where the outer peripheral edge of the annular magnet member 300 is inserted into the through hole 405 in the coupling ring member 400, And is exposed toward the opened direction of the groove portion 210. [

Thereafter, one side of the magnet member 300 is disposed at a position close to the surface of the object P to be engaged with the bolt 100, and the magnet member 300, The magnet member 300 attached to the receiving groove 210 of the bolt 100 is brought into contact with the magnet member 300 while the magnetic member 300 is brought into contact with the object P in response to the object P, It is possible to prevent the bolt 100 from being loosened even if vibration is transmitted to the bolt 100 through the object P by means of improving the coupling force between the bolt 100 and the object P, (P) can be maintained.

Therefore, in order to prevent loosening of the bolt 100 due to vibration transmitted from the object P, the object of the present invention is to prevent the loosening of the bolt 100, The coupling member 400 coupled to the magnet member 300 is screwed into the receiving groove 210 formed on one side of the flange portion 130 so that the magnet member 300 is coupled to the coupling ring member 400, It is possible to connect the magnet member 300 to the flange portion 130 of the bolt 100 without forming a screw thread on the magnet member 300 so that the breakage of the magnet member 300 The magnet member 300 can be easily and firmly coupled to the receiving groove 210 of the flange portion 130 and the flange portion 130 of the bolt 100 130 can be brought into close contact with the surface of the object P to cause the vibration of the bolt 100 to be loosened It has the advantage that can be prevented.

9 and 10 are views showing a second embodiment of a fastener having a magnet according to the present invention and have coupling means different from those of the screw fastening coupling means of the preceding embodiment, A vertical groove 222 formed to be concave on an inner circumferential surface of the vertical groove 222 and open to the outside and a horizontal groove 224 formed to open laterally from an end of the vertical groove 222; The coupling ring member 400 protrudes from the outer circumference of the coupling ring member 400 and enters the vertical groove 222 of the fitting groove 220 when the coupling ring member 400 enters the receiving groove 210, And a locking protrusion 430 fitted into the horizontal groove 224 when the member 400 rotates.

The engaging means of the second embodiment of the present invention is characterized in that when the engaging ring member 400 is horizontally inserted into the receiving groove 210, the engaging protrusion 430 formed on the outer periphery of the engaging ring member 400 is inserted into the fitting groove 220 And then the engaging ring member 400 is rotated so that the engaging protrusion 430 is coupled into the horizontal groove 224, the engaging protrusion 430 is moved in the horizontal groove 224 It is possible to prevent the coupling ring member 400 from flowing in the longitudinal direction of the bolt 100 and to prevent the coupling ring member 400 from being separated from the receiving groove 210.

Accordingly, the second embodiment of the present invention is capable of firmly holding the coupling ring member 400 and the receiving groove 210 in an engaging manner with the engaging protrusion 430, not the screw fastening method.

FIGS. 11 and 12 are views showing a third embodiment of the present invention, which is also applicable to a bolt other than a flange bolt unlike the previous embodiment. The structure for this is a head part 110, A bolt 100 having a threaded portion 120 formed to extend to one side of the base 110; A receiving groove 210 formed concavely on one side of the head 110; A magnet member 300 coupled to be received in the receiving groove 210; And a coupling ring member 400 which is fitted on the outer circumferential surface of the magnet member 300 and is coupled to the inner circumferential surface of the receiving groove 210 through coupling means.

Since the structure of the coupling means is the same as that of the foregoing embodiment, the overlapping description will be omitted. The bolt 100 coupled to the object P to be coupled with the magnet member 300 is firmly fastened Is the same as in the previous embodiment.

13 and 14 are views showing a fourth embodiment of the present invention, in which a fastening hole 11 having a female screw formed to penetrate and fasten an end of a bolt 100 is formed at the center, and an extension A nut (10) having a projection (13); An artificial groove 12 formed concavely on one side of the extended protrusion 13; A magnet member (300) coupled to be received in the recess (12); And a coupling ring member (400) which is fitted to the outer circumferential surface of the magnet member (300) and is coupled to the inner circumferential surface of the orbit groove portion (12) through coupling means.

The fourth embodiment of the present invention shows that the magnet member 300 can be applied to the flange nut 10 instead of the bolt 100 of the previous embodiment.

The engaging means is formed with a female screw portion 12a on the inner circumferential surface of the recessed groove portion 12 and a male screw is formed around the outer circumference of the engaging ring member 400 so as to be screwed together.

The fourth embodiment of the present invention can be applied to the above-described components (the latching jaw 420, the latching protrusion 430, and the fitting groove 220).

15 and 16 illustrate a fifth embodiment of the present invention. In the fifth embodiment of the present invention, a nut 10 having a fastening hole 11 formed with a female screw so that the end portion of the bolt 100 passes through the center thereof, ; A recessed groove 12 formed at one side of the nut 10; A magnet member (300) coupled to be received in the recess (12); And a coupling ring member (400) which is fitted to the outer circumferential surface of the magnet member (300) and is coupled to the inner circumferential surface of the orbit groove portion (12) through coupling means.

The fifth embodiment of the present invention shows that the magnet member 300 can be applied to the general nut 10, not the flange nut.

Therefore, in the embodiments of the present invention, in order to prevent loosening of the bolt 100 and the object P due to the vibration transmitted from the object P, 100 or the coupling ring member 400 coupled with the magnet member 300 in the receiving recessed portion 210 or the recessed portion 12 formed on one side of the nut 10 by the screw engagement method, Can be coupled to a fastener such as a bolt and a nut via the coupling ring member 400 so that the fastener can be firmly brought into close contact with the surface of the object P by using the magnetic force of the magnet member 300 So that it is possible to prevent loosening of the fastener even if vibration is generated.

10: nut 11: fastening hole
12: Antech groove part 12a: Female thread part
13: extension protrusion 100: bolt
110: head part 120:
130: flange portion 210: receiving groove
215: female thread 300: magnet member
400: coupling ring member 405: through hole
410: handle portion 415: male threads
420: hanging chin 430:
450: gripping groove P: engaged member

Claims (10)

A head portion 110 and a flange portion 130 extending outward from a connection portion between the head portion 110 and the screw portion 120. [ A bolt 100;
A receiving groove 210 formed on one side of the flange 130;
A magnet member 300 coupled to be received in the receiving groove 210;
And a coupling ring member (400) fitted to the outer circumferential surface of the magnet member (300) and coupled to an inner circumferential surface of the receiving groove portion (210) through coupling means. The method according to claim 1,
A through hole 405 is formed at the center of the coupling ring member 400 to receive the outer circumference of the magnet member 300,
And a locking protrusion (420) protruding from an inner side surface of the through hole (405) toward the center to interfere with a rim portion of the magnet member (300). The method according to claim 1,
The coupling means includes a female thread (215) formed on the inner peripheral surface of the receiving groove (210)
And a male thread (415) formed to correspond to the female thread (215) around the outer periphery of the coupling ring member (400). The method according to claim 1,
The coupling means includes a vertical groove 222 formed to be concave on the inner circumferential surface of the receiving groove 210 and formed to open outwardly and a horizontal groove 224 formed to open laterally from the end of the vertical groove 222 A fitting groove 220 made of a metal material;
The coupling ring member 400 protrudes from the outer circumference of the coupling ring member 400 and enters the vertical groove 222 of the fitting groove 220 when the coupling ring member 400 enters the receiving groove 210, And a locking protrusion (430) fitted into the horizontal groove (224) when the member (400) rotates. The method according to claim 1,
Wherein the coupling ring member (400) further comprises a handle (410) formed to protrude from one side surface of the coupling ring member (400). The method according to claim 1,
Wherein the coupling ring member (400) further comprises a grasping groove (450) formed at one side thereof. The method according to claim 1,
Wherein the coupling ring member (400) is made of a metal material that reacts with the magnetic force of the magnet member (300). A bolt 100 having a head part 110 and a screw part 120 formed to extend to one side of the head part 110;
A receiving groove 210 formed concavely on one side of the head 110;
A magnet member 300 coupled to be received in the receiving groove 210;
And a coupling ring member (400) fitted to the outer circumferential surface of the magnet member (300) and coupled to an inner circumferential surface of the receiving groove portion (210) through coupling means. A nut 10 having a fastening hole 11 formed with a female screw so as to penetrate and fasten an end of the bolt 100 and having an extended protrusion 13 extending outwardly on one side;
An artificial groove 12 formed concavely on one side of the extended protrusion 13;
A magnet member (300) coupled to be received in the recess (12);
And a coupling ring member (400) fitted to the outer circumferential surface of the magnet member (300) and coupled to an inner circumferential surface of the orbit groove portion (12) through coupling means. (10) having a fastening hole (11) formed with a female screw so that an end of the bolt (100) penetrates and is fastened at the center;
A recessed groove 12 formed at one side of the nut 10;
A magnet member (300) coupled to be received in the recess (12);
And a coupling ring member (400) fitted to the outer circumferential surface of the magnet member (300) and coupled to an inner circumferential surface of the orbit groove portion (12) through coupling means.
KR1020150144965A 2015-10-16 2015-10-16 Fasteners with a magnet KR101868361B1 (en)

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Application Number Priority Date Filing Date Title
KR1020150144965A KR101868361B1 (en) 2015-10-16 2015-10-16 Fasteners with a magnet

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KR20170045049A true KR20170045049A (en) 2017-04-26
KR101868361B1 KR101868361B1 (en) 2018-06-18

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019098688A1 (en) * 2017-11-17 2019-05-23 (주)파인드몰드 Fastening device having loosening prevention function

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR970002693Y1 (en) * 1994-04-30 1997-04-01 Samsung Heavy Ind Indexing equipment
KR970014203U (en) * 1995-09-27 1997-04-28 Courageous bolt
KR200184119Y1 (en) * 2000-01-08 2000-06-01 주식회사대길통상 Hexagon flange torque shear bolt
KR200395383Y1 (en) 2005-06-30 2005-09-08 윤재일 Jointer using magnet
KR20080021745A (en) 2008-02-18 2008-03-07 임성황 The magnet drawing bolt or nut
KR20090004993U (en) * 2007-11-21 2009-05-26 한진복 Vacuum adhesion pad
KR20120014723A (en) * 2010-08-10 2012-02-20 윤재일 Sealable fastening device using bolt and nut
KR101166673B1 (en) * 2012-04-20 2012-07-24 주식회사 비엠티 Ferrule protect device for part heat treatment

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR970002693Y1 (en) * 1994-04-30 1997-04-01 Samsung Heavy Ind Indexing equipment
KR970014203U (en) * 1995-09-27 1997-04-28 Courageous bolt
KR200184119Y1 (en) * 2000-01-08 2000-06-01 주식회사대길통상 Hexagon flange torque shear bolt
KR200395383Y1 (en) 2005-06-30 2005-09-08 윤재일 Jointer using magnet
KR20090004993U (en) * 2007-11-21 2009-05-26 한진복 Vacuum adhesion pad
KR20080021745A (en) 2008-02-18 2008-03-07 임성황 The magnet drawing bolt or nut
KR20120014723A (en) * 2010-08-10 2012-02-20 윤재일 Sealable fastening device using bolt and nut
KR101166673B1 (en) * 2012-04-20 2012-07-24 주식회사 비엠티 Ferrule protect device for part heat treatment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019098688A1 (en) * 2017-11-17 2019-05-23 (주)파인드몰드 Fastening device having loosening prevention function
KR20190056711A (en) * 2017-11-17 2019-05-27 (주)파인드몰드 Fastening device with a locking feature

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