WO2005103512A1 - 緩み止めナット - Google Patents
緩み止めナット Download PDFInfo
- Publication number
- WO2005103512A1 WO2005103512A1 PCT/JP2004/004540 JP2004004540W WO2005103512A1 WO 2005103512 A1 WO2005103512 A1 WO 2005103512A1 JP 2004004540 W JP2004004540 W JP 2004004540W WO 2005103512 A1 WO2005103512 A1 WO 2005103512A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- nut
- panel
- bolt
- leg
- locking
- Prior art date
Links
- 230000002093 peripheral effect Effects 0.000 claims abstract description 5
- 230000002265 prevention Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000002788 crimping Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
- F16B39/12—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts
- F16B39/14—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts made of thin sheet material or formed as spring-washers
-
- 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
- F16B37/12—Nuts or like thread-engaging members with thread-engaging surfaces formed by inserted coil-springs, discs, or the like; Independent pieces of wound wire used as nuts; Threaded inserts for holes
-
- 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
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
- F16B39/34—Locking by deformable inserts or like parts
Definitions
- the present invention relates to a locking nut. More specifically, the present invention relates to a locking nut for preventing a nut screwed to a bolt from falling off by an elastic force of a panel. Background art
- a fall prevention device 101 as shown in FIG. 12 (a) as a preventive device for preventing nuts from falling off is made of an elastic metal or resin or the like. It consists of coil panel part 103 and power.
- the inner diameter of the coil spring portion is configured to be slightly smaller than the outer diameter of the leg portion of the port to which the fall-off prevention device is attached.
- the coil spring is deformed in the direction in which the inner diameter of the coil spring portion increases, and the wire of the coil panel portion is deformed. Insert from the end of the bolt leg along the screw groove provided on the leg, and drop off to the bolt leg Wear protective equipment.
- the fall prevention device must be installed after the nut is tightened, which doubles the work process and is extremely complicated.
- the locking nut 104 shown in (b) is composed of a nut body 105 and two or more elastic rings fixedly mounted on the inner peripheral surface of the nut body 105. 106.
- This ring 106 has an engagement piece 107 formed on its inner peripheral surface to protrude radially inward, and a spacer 108 is interposed between these rings 106.
- the engagement piece 107 of the ring 106 engages with the thread 110 of the bolt 109 to prevent the screw from loosening.
- the present invention has been made in view of the above points, and it is possible to prevent the nut from being loosened by inserting the element wire of the coil panel provided in the nut into the bolt screw groove. At the same time, it is intended to provide a reusable nut for locking.
- a locking nut is provided with a first panel portion, a nut extending continuously from the first panel portion, and arranged outside the first panel portion.
- the locking device includes a locking portion protruding from a circumcircle of a leg of the port, and the second panel portion is configured to rotate the nut body in a detaching direction with a predetermined stress or more. It is configured to lock with the locking portion.
- the nut body when the nut body is rotated in the detaching direction by a predetermined rotational force or more, the inner diameter of the second panel portion is reduced, and the inner side surface at the lower end of the second panel portion and the first spring portion are rotated.
- the latching part of the nut is pressed against each other, and the rotational force applied to the nut body in the detaching direction is applied to the first panel part via the second panel part in the direction of expanding the wire.
- the nut can be removed because it is transmitted as an acting force.
- FIG. 1 is a schematic perspective view for explaining an example of a locking nut to which the present invention is applied.
- FIG. 2 is an explanatory cross-sectional view for explaining a configuration of a strand of a locking nut to which the present invention is applied.
- FIG. 3 is a schematic view showing an example of attachment of the second panel portion and the nut body to which the present invention is applied.
- FIG. 4 is a schematic diagram for explaining the attachment of the locking nut to which the present invention is applied.
- FIG. 5 is a schematic diagram for explaining a fastening state of a locking nut to which the present invention is applied.
- FIG. 6 is a schematic diagram for explaining a state in which a follow-up torque is applied to the first spring portion after fastening the locking nut to which the present invention is applied.
- FIG. 7 is a schematic perspective view for explaining another example of the first screw portion of the locking stopper -y to which the present invention is applied.
- FIG. 8 is a schematic diagram for explaining a state in which the lock stopper -yh to which the present invention is applied is removed.
- FIG. 9 shows the locking hand of the first panel of the locking nut to which the present invention is applied. It is a schematic diagram for showing an example of a step.
- FIG. 10 is a schematic view showing another example of the locking means of the first spring portion of the locking nut according to the present invention.
- FIG. 11 is a schematic view showing another example of the locking means of the first spring portion of the locking nut according to the present invention.
- FIG. 12 is an explanatory view showing an example of a conventional drop prevention device.
- FIG. 13 is an explanatory diagram showing an example of a conventional locking nut. BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 1 is a schematic perspective view for explaining an example of a locking nut to which the present invention is applied
- FIG. 2 is a cross-sectional explanatory view for explaining a configuration of a strand in FIG.
- the locking nut 1 shown here comprises a nut body 2, a first spring portion 3, and a second panel portion 4.
- the first panel portion 3 is wound clockwise from the lower end toward the upper end, and the inner diameter of the first spring portion 3 other than the lower end is slightly smaller than the outer diameter of the bolt leg. Formed by small monsters.
- the inner diameter of the lower end of the first panel portion 3 is formed to be slightly larger than the outer diameter of the leg portion of the bolt.
- the second panel portion 4 extends continuously from the first panel portion, and is wound counterclockwise from the upper end to the lower end.
- the lower end of the second spring portion 4 is connected and fixed to the upper edge of the nut body 2.
- the number of turns at the lower end of the first spring portion is not limited to this embodiment, and the number of turns is not limited as long as the lower end of the first panel portion can be locked by contraction of the inner diameter of the second spring portion. Any number is acceptable.
- the number of turns of the second spring portion is not limited to this embodiment.
- the nut body 2 is provided with a groove 6 along the circumference of the upper end of the screw hole 5 of the nut body 2.
- a wire is inserted into the groove 6 at the lower end of the second spring 4 and the second spring 4 is connected by caulking the entire circumference of the circular groove 6 as shown in Fig. 3 (b). That is what you do.
- the second panel part is strengthened by strengthening several points on the circumferential edge of the groove.
- the second spring portion can be connected by crimping the circumferential edge of the groove at several places. However, as shown in FIG. 3 (c), the lower end of the second panel portion 4 is bent at a substantially right angle.
- the second spring portion 4 can be connected more firmly by inserting it into a hole formed in the outer wall of the groove portion 6 and fixing it, and then crimping it at several places.
- the second spring portion does not necessarily need to be connected by caulking, and various methods such as connection by adhesion or connection by welding are conceivable, and the most suitable method is adopted according to the situation. Is preferred.
- the nut is attached to the leg 8 of the bolt 7 as shown in Figs. 4 (a) and (b).
- the tip body 9 of the leg portion 8 enters from the lower end of the first panel portion 3, and the nut body 2 is further rotated while being in contact with the inner diameter of the first panel portion 3.
- the inner diameter of the first panel portion 3 is elastically deformed in a direction to enlarge, and the element wire of the first panel portion 3 is fitted from the distal end portion 9 of the port 7 along the thread groove of the leg portion 8.
- the strand of the first spring part 3 is Turn the lower end surface of the nut body 2 into the screw groove of the leg 8 of 7 until the lower end surface of the nut body 2 comes in contact with the fixed object 10 to fasten and fix the fixed object 10.
- the first panel portion is elastically deformed in the direction in which the inner diameter increases, the wire that fits into the thread groove formed in the leg portion of the bolt is likely to float, and the first spring portion and the leg portion The frictional force between the parts is reduced and the fitting can be done smoothly, and the mounting up to the final tightening can be done by hand.
- the first spring portion having an inner diameter smaller than the outer diameter of the port leg is fitted in an enlarged state, the restoring force of the first panel portion and the port leg are reduced.
- the wire of the first panel is firmly fixed to the bolt leg due to the frictional force between the nut and the bolt, and the wire fixed to the bolt restricts the rotation of the nut body in the detaching direction.
- the first spring part is pulled in the direction in which the inner diameter contracts, so that the strand of the first panel part is formed more strongly on the bolt leg.
- the screw is pressed against the slope of the thread groove to prevent rotation.
- FIG. 7 is a schematic perspective view for explaining another example of the locking nut to which the present invention is applied.
- the upper end of the first panel portion 3 is wound in a hexagonal shape.
- the upper end of the first spring portion 3 can be easily grasped and fastened.
- the structure is such that rotation in the direction can be facilitated.
- the upper end of the first panel portion is wound in a hexagonal shape so that it can be easily grasped by a hand or a tool, and need not necessarily be wound in a hexagonal shape. That is, any shape may be used as long as the upper end of the first panel portion can be easily turned in the fastening direction.
- the 1st panel part can be removed by hand because the rotating force is applied in the direction to enlarge the inner diameter by applying the rotating force in the detaching direction with the lower end gripped.
- rotation is prevented because the applied rotational force pulls the inner diameter in a direction to contract.
- the locking nuts cannot be removed.
- the reason why the inner diameter of the lower end of the first panel portion is wound larger than the outer diameter of the leg portion of the bolt as shown in an example of the locking nut to which the present invention is applied is because the diameter of the second panel portion is reduced.
- the lower end of the first panel portion is gripped by the above, and any locking means may be used as long as only the lower end can be locked, for example, as shown in FIGS. 9 (a) and 9 (b).
- the lower end of the first panel part 3 is bent in the circumferential direction to form a locking piece 11, and the second panel part 4 falls off at the tip of the locking piece 11 while being locked by the reduced diameter.
- a mechanism for rotating the first panel unit 3 so as to push it out in the direction may be used.
- the lower end of the first panel portion 3 is bent in the circumferential direction, and the front end thereof is bent upward in a right-angled manner, and the engaging piece is formed.
- a configuration may be adopted in which the strand of the second panel portion 4 due to the reduced diameter is easily locked to the locking piece 11.
- the lower end of the first panel portion 3 is bent in the circumferential direction, and the end is bent downward at right angles to form the locking piece 11.
- the configuration may be such that the strands of the second panel portion 4 due to the reduced diameter are easily locked to the locking pieces 11 similarly to the configuration shown in FIG. 10.
- the nut for preventing loosening of the present invention can surely prevent the nut from being loosened after fastening, and has an excellent effect for fastening iron bridges and towers that are always subject to shocks such as vibration.
- the lower end of the first panel portion is locked by the second panel portion by applying rotational force with a jig, and then the rotational force is further increased.
- the first spring portion can be smoothly separated.
- the locking nut of the present invention does not plastically deform the first panel portion and the second panel portion when the bolt is attached to or detached from the bolt, so that the bolt and the nut are re-installed. It makes it possible to use it.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
- Clamps And Clips (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2004/004540 WO2005103512A1 (ja) | 2004-03-30 | 2004-03-30 | 緩み止めナット |
US10/593,658 US20070140810A1 (en) | 2004-03-30 | 2004-03-30 | Self-locking nut |
JP2006500400A JP4280773B2 (ja) | 2004-03-30 | 2004-03-30 | 緩み止めナット |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2004/004540 WO2005103512A1 (ja) | 2004-03-30 | 2004-03-30 | 緩み止めナット |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005103512A1 true WO2005103512A1 (ja) | 2005-11-03 |
Family
ID=35197050
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/004540 WO2005103512A1 (ja) | 2004-03-30 | 2004-03-30 | 緩み止めナット |
Country Status (3)
Country | Link |
---|---|
US (1) | US20070140810A1 (ja) |
JP (1) | JP4280773B2 (ja) |
WO (1) | WO2005103512A1 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011090234A1 (ko) * | 2010-01-21 | 2011-07-28 | 주식회사 임진에스티 | 세이퍼락 너트 |
JP2011231904A (ja) * | 2010-04-30 | 2011-11-17 | Yamada Seimitsu Seisakusho:Kk | ボルト・ナットの緩止具 |
JP2012007641A (ja) * | 2010-06-23 | 2012-01-12 | Ishitoku Rashi Co Ltd | 締結装置 |
JP5200190B2 (ja) * | 2010-05-21 | 2013-05-15 | 泰治郎 添田 | 脱落防止具 |
JP2018044604A (ja) * | 2016-09-14 | 2018-03-22 | 有限会社Sit | 脱落防止具 |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009048160B4 (de) * | 2009-10-02 | 2019-05-16 | Böllhoff Verbindungstechnik GmbH | Einformbare Drahtgewindeeinsätze, Bauteil mit einformbarem Drahtgewindeeinsatz sowie Herstellungsverfahren eines Bauteils mit einformbarem Drahtgewindeeinsatz |
US20110176887A1 (en) * | 2010-01-21 | 2011-07-21 | Im Young Woo | Saferlock nut |
DE202011052036U1 (de) * | 2011-11-18 | 2013-02-20 | Jörg Schwarzbich | Toleranzausgleichselement |
DE202012102440U1 (de) * | 2012-07-03 | 2013-10-07 | Jörg Schwarzbich | Toleranzausgleichselement |
US10368870B2 (en) | 2013-11-08 | 2019-08-06 | C.R. Bard, Inc. | Surgical fastener |
US9615830B2 (en) * | 2013-11-08 | 2017-04-11 | C.R. Bard, Inc. | Surgical fastener |
US9675353B2 (en) | 2013-11-08 | 2017-06-13 | C.R. Bard, Inc. | Surgical fasteners and associated deployment devices |
US9445814B2 (en) | 2013-11-08 | 2016-09-20 | C.R. Bard, Inc. | Surgical fastener |
DE102016124716A1 (de) * | 2016-12-16 | 2018-06-21 | Sfs Intec Holding Ag | Mutter mit drahtgewindeeinsatz |
DE102016125664A1 (de) | 2016-12-23 | 2018-06-28 | Böllhoff Verbindungstechnik GmbH | Bestigungseinleger für ein Bauteil aus Kunststoff-,Schaum- oder Verbundmaterial |
CN108266448A (zh) * | 2018-04-09 | 2018-07-10 | 四川艾尔诺航空金属器材有限公司 | 一种带自固定弹簧自锁螺母 |
JP7045065B2 (ja) * | 2018-07-20 | 2022-03-31 | 有限会社Sit | 脱落防止具 |
DE102020105838A1 (de) * | 2020-03-04 | 2021-09-09 | Böllhoff Verbindungstechnik GmbH | Montiersicherung, Gewindebolzen mit Montiersicherung, ein Bauteil mit installiertem Gewindebolzen sowie ein Herstellungsverfahren für die Montiersicherung und ein Montageverfahren des Gewindebolzens mit Montiersicherung |
CN112283229A (zh) * | 2020-10-28 | 2021-01-29 | 江苏固德建筑机械有限公司 | 一种建筑不锈钢沉头螺丝 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5737714A (en) * | 1980-08-20 | 1982-03-02 | Seiko Epson Corp | Magnetic head for vertical magnetic recording and reproduction |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US809880A (en) * | 1906-01-09 | Tom Alfred Woolldridge | Flexible coupling. | |
US582424A (en) * | 1897-05-11 | Nut-lock | ||
US988911A (en) * | 1909-07-31 | 1911-04-04 | Alfred Ernest Terry | Screw locking nut. |
US1622203A (en) * | 1924-12-23 | 1927-03-22 | Napier & Son Ltd | Locking device for adjustable rods, spindles, and the like |
US2138919A (en) * | 1935-12-26 | 1938-12-06 | William P Herman | Plug socket construction |
US2201930A (en) * | 1938-01-04 | 1940-05-21 | Kastar Inc | Self-locking bolt for automobile license plates |
US2575731A (en) * | 1948-06-12 | 1951-11-20 | Santa Antonio | Elastic fastening means for spectacle lenses |
US2982323A (en) * | 1950-06-02 | 1961-05-02 | Vossloh Friedrich Karl | Coiled spring washer having coils bearing opposed vertices and troughs |
FR1222386A (fr) * | 1958-05-05 | 1960-06-09 | écrou à blocage automatique | |
US4377360A (en) * | 1980-05-05 | 1983-03-22 | Wire Products Company, Inc. | Channel nut and method of making same |
US4581871A (en) * | 1984-01-16 | 1986-04-15 | Illinois Tool Works Inc. | Fastener and nosepiece for installing lath |
US20080008557A1 (en) * | 2006-07-10 | 2008-01-10 | Henry R. Bucciero | Threaded fastener members formed from spiral wound wire |
-
2004
- 2004-03-30 US US10/593,658 patent/US20070140810A1/en not_active Abandoned
- 2004-03-30 JP JP2006500400A patent/JP4280773B2/ja not_active Expired - Lifetime
- 2004-03-30 WO PCT/JP2004/004540 patent/WO2005103512A1/ja active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5737714A (en) * | 1980-08-20 | 1982-03-02 | Seiko Epson Corp | Magnetic head for vertical magnetic recording and reproduction |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011090234A1 (ko) * | 2010-01-21 | 2011-07-28 | 주식회사 임진에스티 | 세이퍼락 너트 |
JP2011231904A (ja) * | 2010-04-30 | 2011-11-17 | Yamada Seimitsu Seisakusho:Kk | ボルト・ナットの緩止具 |
JP5200190B2 (ja) * | 2010-05-21 | 2013-05-15 | 泰治郎 添田 | 脱落防止具 |
JP2012007641A (ja) * | 2010-06-23 | 2012-01-12 | Ishitoku Rashi Co Ltd | 締結装置 |
JP2018044604A (ja) * | 2016-09-14 | 2018-03-22 | 有限会社Sit | 脱落防止具 |
Also Published As
Publication number | Publication date |
---|---|
JP4280773B2 (ja) | 2009-06-17 |
US20070140810A1 (en) | 2007-06-21 |
JPWO2005103512A1 (ja) | 2007-08-16 |
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