WO2006089513A1 - Schraube und schutzabdeckung - Google Patents
Schraube und schutzabdeckung Download PDFInfo
- Publication number
- WO2006089513A1 WO2006089513A1 PCT/DE2006/000247 DE2006000247W WO2006089513A1 WO 2006089513 A1 WO2006089513 A1 WO 2006089513A1 DE 2006000247 W DE2006000247 W DE 2006000247W WO 2006089513 A1 WO2006089513 A1 WO 2006089513A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- screw
- head
- protective cover
- glued
- plastic
- Prior art date
Links
- 230000001681 protective effect Effects 0.000 title claims abstract description 54
- 238000001125 extrusion Methods 0.000 claims description 9
- 238000003466 welding Methods 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 2
- 238000007765 extrusion coating Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 239000000243 solution 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
- F16B33/00—Features common to bolt and nut
- F16B33/004—Sealing; Insulation
-
- 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
- F16B37/14—Cap nuts; Nut caps or bolt caps
-
- 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
- F16B43/001—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts for sealing or insulation
Definitions
- the present invention relates to a screw with an internal drive head and a protective cover suitable therefor.
- Such screws are often recessed in recesses in a component, so that the screw head does not protrude so far and disturbs. It then creates a narrow slit between the screw head and the component in which dirt and / or moisture can accumulate. In particular, when screw and component made of different metals, this can cause a considerable electrochemical corrosion, which can lead to a hard corroding the screw, whereby the screw can not be solved without destruction, for example, when required for repairs.
- the protective cover can also serve to protect the component, for example, from falling rocks.
- the present object is achieved by a protective cover for attachment to a head of a screw with internal drive, in which the protective cover consists of a a cylindrical holding portion, whose inner diameter is selected so that it can be placed on the head of the screw and glued there, and a protective section which extends radially or obliquely at the drive-side end of the holding portion radially upward or downward outwardly ,
- a protective cover has the advantage that it can also be retrofitted, possibly even after setting the screw on the screw head and can be used in conjunction with all commercially available screws with internal drive.
- the protective cover according to the invention is preferably made of plastic, a particularly simple production is possible if it is designed as a plastic injection molded part.
- the present object is achieved by a screw with a head with internal drive and an external thread, in which a protective cover is provided, which extends from the thread facing away from the end of the head radially or obliquely radially upwardly or downwardly inclined outwardly.
- this protective cover can then be designed as a perforated disc welded or glued to the head of the screw. It is particularly preferred when the weld or adhesive seam along the edge facing away from the thread of the head is arranged.
- the protective cover may advantageously be formed as a perforated disc and be clipped into a horizontal groove on the circumferential surface of the cylindrical screw head circumferential groove.
- the protective cover can additionally be glued, soldered or welded.
- the protective cover is particularly preferred to carry out the protective cover as a plastic extrusion coating of the screw head.
- the invention provides that the outer surface of the screw head is roughened or knurled in the area of plastic extrusion.
- the outer surface of the screw head may be provided in the plastic extrusion with a horizontal circumferential groove.
- Figure 1 shows a protective cover according to the invention, which is either glued to the screw head or designed as Kunststoffumsprit- tion;
- Figure 2 is welded to the screw head or glued protective cover and
- Figure 3 is a clipped into a groove on the screw head protective cover.
- All three embodiments of the present invention are based on a commercially available screw 10 with a screw head 12 and an adjoining external thread, wherein the head with an internal drive 14 (here a hexagon socket, but it can equally use any other internal drive use) is provided.
- This screw is recessed into a recess in a component 20 at least partially with the head, so that the screw head does not bother. The result is thus a gap 22 between the screw head 12 and the component 20.
- the object of the present invention is now to prevent 22 dirt, foreign bodies or moisture from accumulating in this gap.
- a protective cover is attached to the head 12 of the screw 10 to solve this problem.
- the cover may also serve to protect the component 20.
- FIG. 1 shows a protective cover 100 that consists of a cylindrical holding section 102 and a protective section 110 exists.
- the inner diameter of the holding portion 102 is selected so that the protective cover 100 can be placed on the head 12 of the screw 10 and glued there.
- the inner diameter of the cylindrical holding portion 102 should therefore be minimally larger than the outer diameter of the screw head 12.
- the SSenkbpf 12 may be provided on its outer surface with roughening or knurling to improve the durability of the bond.
- the holding section 102 merges into a protective section 110 which extends radially or obliquely upwards or downwards in a disk-shaped outward direction.
- the diameter of this protective section 110 can be selected as needed. If large parts of the component 20 are to be protected, the diameter of the protective section 110 can also amount to a multiple of the diameter of the screw head 12.
- the protective cover 100 is made of plastic, and a particularly simple production is possible if the protective cover 100 is designed as a plastic injection molded part.
- this protective cover is that it can be glued on commercially available screws later, possibly even after setting the screw.
- the same configuration can also be achieved when the protective cover 100 is designed as a plastic extrusion of the screw head. In this case, the subsequent installation of the protective cover 100 is saved. It is particularly preferred if the outer circumferential surface of the screw head 12 is roughened or knurled in the region of the plastic extrusion. The durability of the plastic extrusion coating on the screw head is thereby significantly improved. sert. The same success can also be achieved by providing the screw head 12 with a horizontally encircling groove in the region of the plastic extrusion.
- a disadvantage of this embodiment of the invention according to Figure 1 is that the recess in the component 20, in which the screw head 12 is recessed, must be increased according to the present invention. However, this is sometimes not possible for reasons of space, sometimes undesirable for reasons of cost, if this would require a re-construction of the component 20, or if the cover should be made of a different material than plastic.
- the present invention therefore proposes the two further embodiments according to FIG. 2 and FIG. 3 for the screw 10 according to the invention, if the opening for the screw head 12 in the component 20 is to remain unchanged.
- a protective cover 200 is attached to the screw head 12. This extends in the illustrated embodiment again radially outward and obliquely downward.
- the protective cover can also be designed differently here, for example, extending horizontally outward or inclined obliquely upwards.
- the protective cover 200 may be formed as welded to the head 12 of the screw 10 metallic perforated disc or as a glued metallic or plastic produced perforated disc. It is particularly preferred in this case if the weld or adhesive seam is arranged along the edge of the head facing away from the thread.
- this perforated disc can be further facilitated if the corresponding end of the head has a slight constriction 202 or a phase with a slightly smaller diameter than the other outer diameter of the head 12.
- the protective cover 300 may be formed as a perforated disc and be clipped into a horizontally on the lateral surface of the cylindrical screw head 12 circumferential groove 302.
- the perforated disc 300 can then additionally be glued, soldered or welded in order to ensure a better grip on the screw head 12.
- a seal may be provided on the underside of the protective cover in the region opposite the component 20, wherein the contact pressure for the seal when tightening the screw can be achieved by slight deformation of the protective cover.
- the embodiment according to FIG. 1 is preferred since a corresponding plastic injection-molded part has greater elasticity.
- a corresponding welding of a metallic protective cover 200, 300 can be produced, for example, by resistance welding or friction welding.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112006001051T DE112006001051A5 (de) | 2005-02-24 | 2006-02-13 | Schraube und Schutzabdeckung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202005003163.1 | 2005-02-24 | ||
DE200520003163 DE202005003163U1 (de) | 2005-02-24 | 2005-02-24 | Schraube und Schutzabdeckung |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006089513A1 true WO2006089513A1 (de) | 2006-08-31 |
Family
ID=34626077
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2006/000247 WO2006089513A1 (de) | 2005-02-24 | 2006-02-13 | Schraube und schutzabdeckung |
Country Status (2)
Country | Link |
---|---|
DE (2) | DE202005003163U1 (de) |
WO (1) | WO2006089513A1 (de) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE460851C (de) * | 1928-06-04 | Voigt & Haeffner Akt Ges | Anordnung zum Befestigen von leitungsfuehrenden Teilen an geerdeten Teilen u. dgl. | |
GB614602A (en) * | 1946-07-17 | 1948-12-17 | English Electric Co Ltd | Improvements in terminal clamping screws |
GB858227A (en) * | 1958-05-21 | 1961-01-11 | Vernon Gerald Ralph Dixon | Improvements in or relating to covers for the heads of screws, nails or the like |
GB916161A (en) * | 1957-10-31 | 1963-01-23 | Sidney Geoffrey Young | Improvements in or relating to fixing devices |
US3159073A (en) * | 1961-03-23 | 1964-12-01 | Hi Shear Corp | Fastener protective sealing means |
DE4342461A1 (de) * | 1993-12-13 | 1995-06-14 | Hirschmann Richard Gmbh Co | Schraubverbindung |
CH687099A5 (de) * | 1993-03-11 | 1996-09-13 | Johann Gottlieb Aellig | Abdeckelement fuer Schrauben. |
-
2005
- 2005-02-24 DE DE200520003163 patent/DE202005003163U1/de not_active Expired - Lifetime
-
2006
- 2006-02-13 WO PCT/DE2006/000247 patent/WO2006089513A1/de not_active Application Discontinuation
- 2006-02-13 DE DE112006001051T patent/DE112006001051A5/de not_active Withdrawn
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE460851C (de) * | 1928-06-04 | Voigt & Haeffner Akt Ges | Anordnung zum Befestigen von leitungsfuehrenden Teilen an geerdeten Teilen u. dgl. | |
GB614602A (en) * | 1946-07-17 | 1948-12-17 | English Electric Co Ltd | Improvements in terminal clamping screws |
GB916161A (en) * | 1957-10-31 | 1963-01-23 | Sidney Geoffrey Young | Improvements in or relating to fixing devices |
GB858227A (en) * | 1958-05-21 | 1961-01-11 | Vernon Gerald Ralph Dixon | Improvements in or relating to covers for the heads of screws, nails or the like |
US3159073A (en) * | 1961-03-23 | 1964-12-01 | Hi Shear Corp | Fastener protective sealing means |
CH687099A5 (de) * | 1993-03-11 | 1996-09-13 | Johann Gottlieb Aellig | Abdeckelement fuer Schrauben. |
DE4342461A1 (de) * | 1993-12-13 | 1995-06-14 | Hirschmann Richard Gmbh Co | Schraubverbindung |
Also Published As
Publication number | Publication date |
---|---|
DE202005003163U1 (de) | 2005-05-25 |
DE112006001051A5 (de) | 2008-02-07 |
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