WO1999001674A1 - Washer for locking of nut and locking structure of nut - Google Patents
Washer for locking of nut and locking structure of nut Download PDFInfo
- Publication number
- WO1999001674A1 WO1999001674A1 PCT/JP1997/002337 JP9702337W WO9901674A1 WO 1999001674 A1 WO1999001674 A1 WO 1999001674A1 JP 9702337 W JP9702337 W JP 9702337W WO 9901674 A1 WO9901674 A1 WO 9901674A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- nut
- washer
- tightened
- bolt
- pressure
- Prior art date
Links
- 238000003780 insertion Methods 0.000 claims abstract description 4
- 230000037431 insertion Effects 0.000 claims abstract description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 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
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/24—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object
Definitions
- the present invention relates to a washer for preventing loosening of a standard nut used together and a structure for preventing a nut from being loosened using the washer.
- a nut body incorporating an elastic body such as a metal elastic plate, a nylon plate, or a spring is generally known.
- the present invention is to provide a hash capable of exerting a powerful locking effect on a conventional standard nut at a cost that is almost the same as that of a conventional washer by modifying the washer used simultaneously. Its primary purpose.
- Another important object of the present invention is to provide a nut locking structure using the above-mentioned washer.
- the present invention takes the following technical measures. That is, in the locker for preventing loosening according to the present invention, at least one surface of the upper and lower surfaces of the ring-shaped washer body 2 having the bolt 1 and the through hole 1 penetrating the shaft core is gently inclined in one direction. The structure was formed on the surface.
- the washer of the present invention when the nut B is screwed together with the washer A to the bolt D and tightened to the member C to be tightened with a predetermined torque, the lower surface of the nut B Is in close contact with the upper surface of the washer A, and the inclined seating surface 3 is pressed against the upper surface of the member C to be tightened.
- the angle is set within the range of possible angles.
- At least one of the upper and lower seating surfaces 3 of the upper and lower surfaces of the ring-shaped washer body 2 having the bolt insertion holes 1 penetrating the shaft core is formed as a gentle inclined surface which is inclined in one direction to form the washer A.
- the nut B is screwed to the bolt D and tightened to the tightened member C with a predetermined torque, so that the lower surface of the nut B is tightly attached to the upper surface of the nut A.
- the inclined seat surface 3 of the shaft is pressed against the upper surface of the member C to be tightened, thereby simultaneously generating the pressure in the axial direction of the bolt and the surface pressure against the member C to be tightened to prevent the nut from loosening. It is also characterized by a nut-preventing structure.
- FIG. 1 is a partial cross-sectional front view showing an embodiment of a locker for preventing loosening according to the present invention.
- FIG. 2 is a plan view of the above-mentioned pusher.
- FIG. 3 is a sectional view showing a process of using the above-mentioned washer.
- FIG. 4 is a sectional view showing the use state of the above-mentioned washer. Detailed description of the invention
- reference numeral A denotes a washer according to the present invention, in which a washer body 2 formed of a ring body made of a metal plate is provided with a bolt insertion hole 1 that penetrates a shaft c. 3 is formed on an inclined surface that is gently inclined in the direction of the arrow.
- the angle of inclination that is, the angle of the seat surface varies depending on the size, but is preferably about 1.0 to 3.0 degrees.
- the predetermined tightening torque referred to above is equivalent to the standard tightening torque of the standard nut, or refers to a torque added by about 10% to the standard tightening torque. 0 to 50 O kgf.cm.
- the washer A configured as described above is used together with the nut B as shown in FIG. After the nut B is screwed along the bolt D toward the member C to be tightened to bring the washer A into contact with the upper surface of the member C to be tightened, the nut B is further tightened to a predetermined torque.
- the nut B is fixed in the inclined posture along the inclined seat surface 3 of the washer A while filling the gap between the bolt and the nut, and the gap between the nuts.
- the screw on the upper side of the nut B and the screw on the lower side press the bolt side in the cutting direction, and at the same time, the inclined seat surface 3 is tightened. Pressure contact with the upper surface of member C by surface contact. Due to this internal stress, the engagement between the nut B and the screw of the bolt D is firmly locked, so that the nut B can be prevented from becoming loose.
- the inventor of the present invention has an outer diameter of 26 im, an inner diameter of 12.2, a maximum thickness of 2.8 mm, and a minimum thickness of 1.8 mm (in this case, the seat angle is 2.3 degrees).
- An iron shell for M12 nuts was created, and a third-party test center was asked to perform a nut loosening vibration test.As a result, all four standard nuts loosened within 20 seconds. All four nuts were able to withstand more than 14 minutes of vibration. In this case, the tightening torque of the nut was 50 O kgf .cm.
- the present invention is not necessarily limited to the structures of these embodiments.
- the inclined surface is provided on the lower surface of the washer body.
- the washer material is not limited to metal materials such as iron and stainless steel, and a small-sized one can be formed of a synthetic resin material.
- the shape of the washer is not limited to a circle, but may be any shape such as a hexagon or a quadrangle. May be formed.
- the present invention has the structural requirements, achieves the object of the present invention, and can be appropriately modified and implemented within the range of achieving the following effects.
- the inclined surfaces are formed on at least one of the upper and lower surfaces of the washer body, the production can be simplified, and the price is almost the same as that of the conventional standard dozer.
- it can be provided with a standard nut, it can be used together with a standard nut to generate internal stress in the bolt axis direction inside the nut body and surface pressure on the bearing surface, so that a reliable locking effect is exhibited.
- the bolts of the nuts can be lightly screwed in exactly the same way as the standard nuts, so that there are various excellent effects such as good work efficiency.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19701207A DE19701207A1 (en) | 1997-01-15 | 1997-01-15 | Washer to secure nut and bolt has wedge-shaped cross-section |
AU33589/97A AU3358997A (en) | 1997-01-15 | 1997-07-04 | Washer for locking of nut and locking structure of nut |
PCT/JP1997/002337 WO1999001674A1 (en) | 1997-01-15 | 1997-07-04 | Washer for locking of nut and locking structure of nut |
KR1020007000039A KR20010015543A (en) | 1997-07-04 | 1997-07-04 | Washer for locking of nut and locking structure of nut |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19701207A DE19701207A1 (en) | 1997-01-15 | 1997-01-15 | Washer to secure nut and bolt has wedge-shaped cross-section |
PCT/JP1997/002337 WO1999001674A1 (en) | 1997-01-15 | 1997-07-04 | Washer for locking of nut and locking structure of nut |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999001674A1 true WO1999001674A1 (en) | 1999-01-14 |
Family
ID=26033123
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1997/002337 WO1999001674A1 (en) | 1997-01-15 | 1997-07-04 | Washer for locking of nut and locking structure of nut |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU3358997A (en) |
DE (1) | DE19701207A1 (en) |
WO (1) | WO1999001674A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8293035B2 (en) | 2006-10-12 | 2012-10-23 | Air Products And Chemicals, Inc. | Treatment method, system and product |
US8715772B2 (en) | 2005-04-12 | 2014-05-06 | Air Products And Chemicals, Inc. | Thermal deposition coating method |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19905706C2 (en) * | 1999-02-11 | 2003-02-27 | Nedschroef Plettenberg Gmbh | Combination nut with inclined washer |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52169669U (en) * | 1976-06-17 | 1977-12-23 | ||
JPS5999106A (en) * | 1982-11-30 | 1984-06-07 | 三井造船株式会社 | Method of using inclined washer or inclined liner |
JPH01173516U (en) * | 1988-05-30 | 1989-12-08 |
-
1997
- 1997-01-15 DE DE19701207A patent/DE19701207A1/en not_active Withdrawn
- 1997-07-04 WO PCT/JP1997/002337 patent/WO1999001674A1/en not_active Application Discontinuation
- 1997-07-04 AU AU33589/97A patent/AU3358997A/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52169669U (en) * | 1976-06-17 | 1977-12-23 | ||
JPS5999106A (en) * | 1982-11-30 | 1984-06-07 | 三井造船株式会社 | Method of using inclined washer or inclined liner |
JPH01173516U (en) * | 1988-05-30 | 1989-12-08 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8715772B2 (en) | 2005-04-12 | 2014-05-06 | Air Products And Chemicals, Inc. | Thermal deposition coating method |
US8293035B2 (en) | 2006-10-12 | 2012-10-23 | Air Products And Chemicals, Inc. | Treatment method, system and product |
Also Published As
Publication number | Publication date |
---|---|
DE19701207A1 (en) | 1998-07-16 |
AU3358997A (en) | 1999-01-25 |
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