GB2041138A - Nut fastener - Google Patents
Nut fastener Download PDFInfo
- Publication number
- GB2041138A GB2041138A GB8003226A GB8003226A GB2041138A GB 2041138 A GB2041138 A GB 2041138A GB 8003226 A GB8003226 A GB 8003226A GB 8003226 A GB8003226 A GB 8003226A GB 2041138 A GB2041138 A GB 2041138A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nut
- coating
- nut fastener
- fastener
- clip
- 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- Withdrawn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
- 238000000576 coating method Methods 0.000 claims abstract description 35
- 239000011248 coating agent Substances 0.000 claims abstract description 27
- 239000004033 plastic Substances 0.000 claims abstract description 23
- 229920003023 plastic Polymers 0.000 claims abstract description 23
- 229910052751 metal Inorganic materials 0.000 claims abstract description 15
- 239000002184 metal Substances 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 13
- 238000006748 scratching Methods 0.000 claims abstract description 5
- 230000002393 scratching effect Effects 0.000 claims abstract description 5
- 230000007797 corrosion Effects 0.000 claims description 8
- 238000005260 corrosion Methods 0.000 claims description 8
- 229910000639 Spring steel Inorganic materials 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 239000010410 layer Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 2
- 239000004952 Polyamide Substances 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 238000007743 anodising Methods 0.000 claims description 2
- 238000009833 condensation Methods 0.000 claims description 2
- 230000005494 condensation Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims description 2
- 230000007547 defect Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000005555 metalworking Methods 0.000 claims description 2
- 229910052750 molybdenum Inorganic materials 0.000 claims description 2
- 239000011733 molybdenum Substances 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 claims description 2
- 239000011241 protective layer Substances 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
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
- F16B37/00—Nuts or like thread-engaging members
- F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
- F16B37/044—Nut cages
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bolts, Nuts, And Washers (AREA)
- Connection Of Plates (AREA)
- Clamps And Clips (AREA)
Abstract
A nut fastener comprises a one- piece clamping device (10) which, in use, engages the edge of a flat structural part, for example, sheet metal. The fastener holds a nut (12) for a screw on bolt to be inserted through a hole in the structural part into the nut (12). The fastener is coated with plastics material (18) to reduce the risk of scratching of any coating of the structural part. <IMAGE>
Description
SPECIFICATION
Nut fastener
The invention relates to a nut fastener com- prising a one-piece or multipart flexible clamping device which, in use grips the edge of a flat structural part and which holds a nut for a screw or bolt to be inserted through a hole in the structural part and into the nut.
Nut fasteners of this type are known in numerous variations in one-piece and multipart design (see for example German AS 2 059 006, German OS 23 13 753, German
OS 24 18 124, German OS 24 08 837 and
German PS 1110 956). They are used in the sheet-metal working industry, in particular in the motor-vehicle industry and in aircraft construction, for the purpose of quickly and reliably connecting parts to relatively thin sheet metal.
The known clamping devices normally consist of steel and in the assembled condition are widely exposed to corrosion. This danger is particularly great if the sheet metal and supports to which the nut fasteners are clamped consist of a different material, for example aluminium, and humidity or moisture, for example as a result of condensation, occur at the connection point.
Previously it was thought that this defect could be overcome by providing the sheet metal or supports with a protective surface, for example by anodizing. According to the shape of the nut fastener, this surface coating is often scratched during installation of the nut fastener and then becomes ineffective at the critical location. Correspondingly it would be assumed, conversely, that any protective layer on the nut fastener would also be damaged. It has thus been proposed to manufacture the nut fastener of stainless spring steel.
Unfortunately, this material can be machined only with difficulty, so that these nut fasteners are relatively expensive. Furthermore, in this way the problem of possible damage to an anodized coating is still not solved.
Finally, it is known to connect the nut fastener with a special plastics part which one one side is pressed against the support and thus prevents scratching and corrosion on this side. This procedure is also relatively expensive and complicated, and does not offer the necessary overall protection.
The invention provides a nut fastener comprising a one-piece or multipart flexible clamping device which, in use, grips the edge of a flat structural part and holds a nut for a screw or bolt to be inserted through a hole in the structural part, characterised in that the nut fastener is provided with a coating of plastics material. An advantage of the nut fastener described above is that even in embodiments consisting of conventional, easily treated spring steel, no corrosion takes place and damage to the surface of the sheet metal and supports is effectively prevented.
The nut fastener described above not only utilises the enveloping and insulating properties of the plastics coating but also takes advantage of the fact that plastics coatings are usually outwardly rounded even at sharp edges of the coated articles. Depending on the coating process, the plastics coating may even be especially thick at the edges. In this way damage to an anodized coating is immediately prevented in the present context.
The proposed plastics coating also does not counteract the spring properties of the clamping device of the nut fasteners, since the plastics material itself is flexible.
In a preferred embodiment of the invention, the plastics coating is applied using the fluidized-bed coating process. A process of this type is known, for in which there is used a polyamide 1 line powder. In addition to this there are, of course, other known possibilities of effecting the coating.
One example of embodiment of the invention is described below and illustrated in the drawings which show a nut fastener and nut in top view in Fig. 1, side view in Fig. 2 and enlarged partial section in Fig. 3.
The illustrated nut fastener is a one-piece clip 10 which is so designed that, it forms a resilient clamping device and, retains a nut 12 with a certain amount of axial play and secured against rotation.
The arm of the clip 10 opposite the nut 1 2 is bent to form a lug or tongue 14 with a centering projection 1 6 which engages in a bore in a metal sheet or support to which the nut fastener is clamped. In the usual embodiment the clip 10 contains of readily machined spring steel, whereas for the nut 1 2 stainless steel is normally used, which is conventionally passivated, silver-plated or molybdenum coated.
To protect the clip 10 from corrosion and to prevent any scratching of an anodized coating on the sheet metal, for example by the sharp edges of the centering projection 16, the entire clip 10 is coated with plastics material.
This layer is designated 1 8 in the enlarged partial section through the lug 1 4 and, preferably, is produced using the fluidized-bed coating process. The clip 10 is here already in its final shape. The nut 1 2 can be engaged in its positive mounting after the coating of the clip 1 0. The plastics coating 1 8 allows both the elastic mobility of the tabs on the clip 10 holding the nut 1 2 and the flexing of the arms of the clip during its fitting on to a metal sheet.
1. A nut fastener comprising a one-piece or multipart flexible clamping device which, in use grips the edge of a flat structural part and holds a nut for a screw or bolt to be inserted
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (3)
1. A nut fastener comprising a one-piece or multipart flexible clamping device which, in use grips the edge of a flat structural part and holds a nut for a screw or bolt to be inserted through a hole in the structural part, characterised in that the nut fastener is provided with a coating of plastics material.
2. A nut fastener as claimed in claim 1, characterised in that the coating of plastics material consists of a layer of powder fused by applying heat.
3. A nut fastener substantially as hereinbefore described with reference to and as shown in the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE7902931 | 1979-02-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB2041138A true GB2041138A (en) | 1980-09-03 |
Family
ID=6700696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8003226A Withdrawn GB2041138A (en) | 1979-02-03 | 1980-01-31 | Nut fastener |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR2448067A1 (en) |
| GB (1) | GB2041138A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6474917B2 (en) * | 2000-06-22 | 2002-11-05 | Jacques Gauron | Clip nuts |
| WO2003042557A1 (en) * | 2001-10-30 | 2003-05-22 | Newfrey Llc | Floating nut cage fastener |
| US7021875B2 (en) | 2001-10-30 | 2006-04-04 | Newfrey Llc | Coated, weldable fastener, a method of preventing adherence of a second coating to a fastener portion, and a method fastening |
| US7083479B2 (en) | 2001-02-16 | 2006-08-01 | Newfrey Llc | Fastener for an electric contact |
| DE102009036820A1 (en) | 2009-08-04 | 2011-02-10 | Illinois Tool Works Inc., Glenview | Fastener for pre-assembly of a fastener on a component |
-
1980
- 1980-01-31 GB GB8003226A patent/GB2041138A/en not_active Withdrawn
- 1980-02-01 FR FR8002529A patent/FR2448067A1/en active Granted
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6474917B2 (en) * | 2000-06-22 | 2002-11-05 | Jacques Gauron | Clip nuts |
| US6918725B2 (en) * | 2000-06-22 | 2005-07-19 | Marketing Masters, Inc. | Clip nuts with plastic clips |
| US7083479B2 (en) | 2001-02-16 | 2006-08-01 | Newfrey Llc | Fastener for an electric contact |
| WO2003042557A1 (en) * | 2001-10-30 | 2003-05-22 | Newfrey Llc | Floating nut cage fastener |
| US7021875B2 (en) | 2001-10-30 | 2006-04-04 | Newfrey Llc | Coated, weldable fastener, a method of preventing adherence of a second coating to a fastener portion, and a method fastening |
| DE102009036820A1 (en) | 2009-08-04 | 2011-02-10 | Illinois Tool Works Inc., Glenview | Fastener for pre-assembly of a fastener on a component |
| WO2011015350A1 (en) | 2009-08-04 | 2011-02-10 | Illinois Tool Works, Inc. | Fastening means for the pre-assembly of a joining means on a structural element |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2448067A1 (en) | 1980-08-29 |
| FR2448067B3 (en) | 1982-01-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4619723B2 (en) | Female mounting assembly and fitting assembly | |
| US1934223A (en) | Mounting for rear-vision mirrors | |
| US2250280A (en) | Electrical bond | |
| GB2041138A (en) | Nut fastener | |
| US5248119A (en) | Clamp body for fixing small-diameter pipe | |
| US4614451A (en) | Turnbuckle clamp assembly with orientation washer | |
| US10737371B2 (en) | Sprinkler wrench protective cover | |
| JPH09503850A (en) | Tightening collar | |
| WO2020014079A1 (en) | Nut cap | |
| ES2045279T3 (en) | COATING BY PVD SYSTEM, AS WELL AS THE PROCEDURE FOR ITS APPLICATION. | |
| US11589718B2 (en) | Mounting method and/or apparatus for mounting a toilet seat | |
| KR19980702619A (en) | Clip-on sheet metal nut with center strip | |
| CA2182029A1 (en) | Tube clip | |
| HUT69588A (en) | Clamp structure | |
| GB2138529A (en) | Wheel Hub Nut | |
| US4852423A (en) | Cap attaching structure of handle grip | |
| KR20090037135A (en) | A painting mask for shok absorber | |
| KR920006384B1 (en) | Method of fixing pipe with plate-like support | |
| US1919767A (en) | Bracket | |
| US4667988A (en) | Clamping element | |
| GB2033462A (en) | Clip | |
| US6431782B1 (en) | Corrosion-protected aggregate and method for producing such a component | |
| CN213102791U (en) | Oil casing spraying tool for protecting air tightness screw thread | |
| GB2034798A (en) | Clip with double clamping action | |
| CN112567162B (en) | Retainer for clamp assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |