FR2580744A1 - Improved washer for screw or nut - Google Patents
Improved washer for screw or nut Download PDFInfo
- Publication number
- FR2580744A1 FR2580744A1 FR8506089A FR8506089A FR2580744A1 FR 2580744 A1 FR2580744 A1 FR 2580744A1 FR 8506089 A FR8506089 A FR 8506089A FR 8506089 A FR8506089 A FR 8506089A FR 2580744 A1 FR2580744 A1 FR 2580744A1
- Authority
- FR
- France
- Prior art keywords
- washer
- screw
- nut
- face
- coated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 4
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 3
- 230000000295 complement effect Effects 0.000 claims description 2
- 229920003002 synthetic resin Polymers 0.000 claims 1
- 239000000057 synthetic resin Substances 0.000 claims 1
- 239000004809 Teflon Substances 0.000 abstract description 6
- 229920006362 Teflon® Polymers 0.000 abstract description 6
- 239000004826 Synthetic adhesive Substances 0.000 abstract description 2
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000004821 Contact adhesive Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- PTISTKLWEJDJID-UHFFFAOYSA-N sulfanylidenemolybdenum Chemical compound [Mo]=S PTISTKLWEJDJID-UHFFFAOYSA-N 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
- F16B43/00—Washers or equivalent devices; Other devices for supporting bolt-heads 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
- F16B41/00—Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins
- F16B41/002—Measures against loss of bolts, nuts or pins
-
- 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
- F16B43/00—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts
- F16B43/002—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts with special provisions for reducing friction
-
- 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
- F16B11/00—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding
- F16B11/006—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding by gluing
-
- 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
- F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
- F16B2200/79—Friction-reducing coatings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bolts, Nuts, And Washers (AREA)
Abstract
Description
Rondelle perfectionnée pour vis ou écrou.Improved washer for screw or nut.
La présente invention concerne le domaine de l'assemblage de pièces mécaniques par vis, ou boulons, ou goujons et écrous, où une rondelle est intercalée sous la tête de vis ou d'écrou et un des éléments à assembler.The present invention relates to the field of assembly of mechanical parts by screws, or bolts, or studs and nuts, where a washer is interposed under the head of screw or nut and one of the elements to be assembled.
Il est connu que dans les assemblages par vis ou boulons, une part importante de l'énergie nécessaire pour assurer le serrage jusqu'au blocage complet est perdue du fait des frottements. Ces frottements sont générés dans les filets et la face d'appui de la tête de vis ou de l'écrou.It is known that in assemblies by screws or bolts, a large part of the energy necessary to ensure tightening until complete blocking is lost due to friction. These frictions are generated in the threads and the bearing face of the screw head or the nut.
Pour améliorer le rendement des systèmes vis et écrou dans les assemblages, une solution consiste à apporter un agent lubrifiant (graisse, sulfure de molybdène, etc ...) à l'interface des pièces en contact. Cette solution a un effet, mais temporaire. Une autre solution décrite dans le brevet français nO 2.390.621 consiste à réaliser un écrou en 2 éléments, elle ffi l'inconvénient d'être plus onéreuse.To improve the performance of the screw and nut systems in assemblies, one solution consists in providing a lubricating agent (grease, molybdenum sulphide, etc.) at the interface of the parts in contact. This solution has an effect, but temporary. Another solution described in French Patent No. 2,390,621 consists in making a nut in 2 elements, it has the disadvantage of being more expensive.
L'objet de l'invention est une rondelle intercalaire, laquelle par un revêtement rapproprié sur une de ses faces apporte une diminution du frottement et, sur l'autre face, par un revêtement différent, permet par adhésion, le maintien de la rondelle à la vis ou l'écrou, ou à la pièce à assembler.The object of the invention is an intermediate washer, which by a suitable coating on one of its faces brings a reduction in friction and, on the other face, by a different coating, allows by adhesion, the maintenance of the washer at the screw or nut, or to the part to be assembled.
La planche unique montre,
Fig. I : une vue en coupe d'un assemblage de 2 pièces A et B.The single plate shows,
Fig. I: a sectional view of an assembly of 2 parts A and B.
Fig. I bis : une vue en coupe de la rondelle 2.Fig. I bis: a sectional view of the washer 2.
Fig. II : une vue en coupe d'un assemblage de-2 pièces A' et B' par une
vis à portée tronconique.Fig. II: a sectional view of an assembly of 2 parts A ′ and B ′ by a
screw with frustoconical reach.
Fig. III : une vue en coupe d'une rondelle à profil torique.Fig. III: a sectional view of a toric profile washer.
Ces figures sont transposables, compte tenu de l'analogie, aux assemblages par boulons et écrous.These figures can be transposed, taking into account the analogy, to assemblies by bolts and nuts.
La rondelle métallique 2 objet de l'invention, fig. I et fig. I bis, a un diamètre intérieur 5 qui permet le passage du boulon ou de la vis avec le jeu nécessaire à son montage aisé et une forme extérieure 6 circulaire ou polygonale dont la dimension est au moins égale au plus grand diamètre 7 de la face d'appui de l'écrou ou de la vis 1 fig. I. L'épaisseur e de la rondelle dépendra du matériau utilisé pour sa réalisation, lequel pourra varier en fonction des contraintes d'assemblage, des conditions d'environnement (milieu oxydant ou non, etc ...) et de la nature des pièces à assembler.The metal washer 2 object of the invention, fig. I and fig. I bis, has an internal diameter 5 which allows the passage of the bolt or the screw with the clearance necessary for its easy mounting and an external circular or polygonal shape 6 whose dimension is at least equal to the largest diameter 7 of the face d 'support of the nut or screw 1 fig. I. The thickness e of the washer will depend on the material used for its production, which may vary depending on assembly constraints, environmental conditions (oxidizing medium or not, etc.) and the nature of the parts to assemble.
La rondelle sureau moins une de ses faces 4 est revêtue d'une couche mince de polytétrafluoréthylène (P.T.F.E.) plus couramment appelé "téflon", déposé selon les procédés connus. Les propriétés de bas coefficient de frottement du téflon permettent une importante réduction de la force de frottement générée sur la face 4. La face "téflonnée" sera plus particulièrement orientée pour coopérer dans l'assemblage soit avec la face de la pièce à assembler B, soit avec la face de l'écrou ou de la tête de vis 1 selon la meilleure qualité de l'état de surface de l'une ou l'autre.The elder washer at least one of its faces 4 is coated with a thin layer of polytetrafluoroethylene (P.T.F.E.) more commonly called "teflon", deposited according to known methods. The properties of low coefficient of friction of teflon allow a significant reduction in the friction force generated on face 4. The "teflon" face will be more particularly oriented to cooperate in assembly either with the face of the part to be assembled B, either with the face of the nut or of the screw head 1 according to the best quality of the surface condition of one or the other.
La forme de la surface de la face d'appui 4 de la rondelle est parfaitement complémentaire à la forme de la face d'appui correspondante de la pièce ou de la tête de vis ou de l'écrou. Ainsi, cette forme peut avoir ungprofil plan, fig. I, conique, fig. II, ou de toute autre configuration ; la fig. III montre une rondelle à profil torique à titre d'exemple.The shape of the surface of the bearing face 4 of the washer is perfectly complementary to the shape of the corresponding bearing face of the part or of the screw head or of the nut. Thus, this shape can have a flat profile, fig. I, conical, fig. II, or any other configuration; fig. III shows an O-ring washer as an example.
La rondelle décrite peut, si une seule face 4 est revêtue de téflon, tel que montré sur les fig. I et I bis,-avoir sur la face opposée un revêtement d'un adhésif synthétique montré 3 fig. I. Si la face téflonnée est la face 3' fig. II, ou 30 fig. III, la face revêtue de résine sera la face opposée 4' fig. II ou 40 fig. III. Cet adhésif par contact assurera le maintien de la rondelle sur un des éléments, soit la pièce B fig. II, soit la tête de vis fig. I. The washer described can, if only one face 4 is coated with Teflon, as shown in FIGS. I and I bis, - have on the opposite side a coating of synthetic adhesive shown in 3 fig. I. If the teflon face is the face 3 'fig. II, or 30 fig. III, the face coated with resin will be the opposite face 4 'fig. II or 40 fig. III. This contact adhesive will maintain the washer on one of the elements, ie part B fig. II, or the screw head fig. I.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8506089A FR2580744A1 (en) | 1985-04-18 | 1985-04-18 | Improved washer for screw or nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8506089A FR2580744A1 (en) | 1985-04-18 | 1985-04-18 | Improved washer for screw or nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2580744A1 true FR2580744A1 (en) | 1986-10-24 |
Family
ID=9318520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8506089A Withdrawn FR2580744A1 (en) | 1985-04-18 | 1985-04-18 | Improved washer for screw or nut |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2580744A1 (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0279046A2 (en) * | 1987-02-14 | 1988-08-24 | Hünnebeck-RöRo Gesellschaft mit beschränkter Haftung | Anchoring nut for a shuttering anchor |
| FR2721075A1 (en) * | 1994-06-14 | 1995-12-15 | Procidec | Assembly fixing with attached washer |
| FR2753752A1 (en) * | 1996-09-26 | 1998-03-27 | Dubuis | SYSTEM FOR FIXING AN ELECTRICAL CONNECTION TERMINAL |
| WO2001065128A1 (en) * | 2000-03-01 | 2001-09-07 | Reinhold Pieper | Disc-shaped security element |
| GB2388172A (en) * | 2002-09-13 | 2003-11-05 | Adrian Oldham | Self adhesive fastener |
| WO2007090188A1 (en) * | 2006-02-01 | 2007-08-09 | Saint-Gobain Performance Plastics Corporation | Shaped composites and method of making thereof |
| CZ302768B6 (en) * | 2008-11-25 | 2011-10-26 | CVUT v Praze, Fakulta strojní | Bolted connection securing system |
| EP2383446A1 (en) * | 2010-04-27 | 2011-11-02 | Bayerische Motoren Werke Aktiengesellschaft | Assembly for fixing an exhaust manifold to a cylinder head and motor unit |
| ES2401386R1 (en) * | 2011-04-28 | 2013-05-27 | Airbus Operations Sl | ANTI-ROTATION SYSTEM FOR BULONS IN AERONAUTICAL STRUCTURE EARS |
| EP2183344B1 (en) * | 2007-07-19 | 2015-10-28 | Hendrikus Antonius Van Dijk | Candle provided with a foil, and method and apparatus for manufacturing a candle |
| EP2316724A3 (en) * | 2009-10-30 | 2017-05-17 | Airbus Operations, S.L. | Floating joint system for panels on a support structure |
| CN113389786A (en) * | 2021-07-09 | 2021-09-14 | 中国工程物理研究院机械制造工艺研究所 | Flexible body pasting device and method |
| US11852184B2 (en) | 2020-08-21 | 2023-12-26 | Rtx Corporation | Fastener element bonded to another fastener element |
-
1985
- 1985-04-18 FR FR8506089A patent/FR2580744A1/en not_active Withdrawn
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0279046A2 (en) * | 1987-02-14 | 1988-08-24 | Hünnebeck-RöRo Gesellschaft mit beschränkter Haftung | Anchoring nut for a shuttering anchor |
| EP0279046A3 (en) * | 1987-02-14 | 1989-03-22 | Hünnebeck-RöRo Gesellschaft mit beschränkter Haftung | Anchoring nut for a shuttering anchor |
| FR2721075A1 (en) * | 1994-06-14 | 1995-12-15 | Procidec | Assembly fixing with attached washer |
| FR2753752A1 (en) * | 1996-09-26 | 1998-03-27 | Dubuis | SYSTEM FOR FIXING AN ELECTRICAL CONNECTION TERMINAL |
| WO1998013901A1 (en) * | 1996-09-26 | 1998-04-02 | Societe Dubuis | System for fixing an electric terminal connector |
| US6244517B1 (en) | 1996-09-26 | 2001-06-12 | Dubuis, Societe Anonyme | System for fixing an electric terminal connector |
| WO2001065128A1 (en) * | 2000-03-01 | 2001-09-07 | Reinhold Pieper | Disc-shaped security element |
| GB2388172A (en) * | 2002-09-13 | 2003-11-05 | Adrian Oldham | Self adhesive fastener |
| GB2388172B (en) * | 2002-09-13 | 2004-04-21 | Adrian Oldham | Self adhesive fasteners |
| JP2009525211A (en) * | 2006-02-01 | 2009-07-09 | サン−ゴバン パフォーマンス プラスティックス コーポレイション | Molded composite and method for producing the same |
| WO2007090188A1 (en) * | 2006-02-01 | 2007-08-09 | Saint-Gobain Performance Plastics Corporation | Shaped composites and method of making thereof |
| KR101020599B1 (en) | 2006-02-01 | 2011-03-09 | 생-고뱅 퍼포먼스 플라스틱스 코포레이션 | Shaped composites and method of making thereof |
| JP4669048B2 (en) * | 2006-02-01 | 2011-04-13 | サン−ゴバン パフォーマンス プラスティックス コーポレイション | Molded composite and method for producing the same |
| US7966855B2 (en) | 2006-02-01 | 2011-06-28 | Saint-Gobain Ceramics & Plastics, Inc. | Shaped composites and method of making thereof |
| EP2183344B1 (en) * | 2007-07-19 | 2015-10-28 | Hendrikus Antonius Van Dijk | Candle provided with a foil, and method and apparatus for manufacturing a candle |
| CZ302768B6 (en) * | 2008-11-25 | 2011-10-26 | CVUT v Praze, Fakulta strojní | Bolted connection securing system |
| EP2316724A3 (en) * | 2009-10-30 | 2017-05-17 | Airbus Operations, S.L. | Floating joint system for panels on a support structure |
| EP2383446A1 (en) * | 2010-04-27 | 2011-11-02 | Bayerische Motoren Werke Aktiengesellschaft | Assembly for fixing an exhaust manifold to a cylinder head and motor unit |
| ES2401386R1 (en) * | 2011-04-28 | 2013-05-27 | Airbus Operations Sl | ANTI-ROTATION SYSTEM FOR BULONS IN AERONAUTICAL STRUCTURE EARS |
| US11852184B2 (en) | 2020-08-21 | 2023-12-26 | Rtx Corporation | Fastener element bonded to another fastener element |
| CN113389786A (en) * | 2021-07-09 | 2021-09-14 | 中国工程物理研究院机械制造工艺研究所 | Flexible body pasting device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |