EP0161250A1 - Schraube - Google Patents
SchraubeInfo
- Publication number
- EP0161250A1 EP0161250A1 EP84900074A EP84900074A EP0161250A1 EP 0161250 A1 EP0161250 A1 EP 0161250A1 EP 84900074 A EP84900074 A EP 84900074A EP 84900074 A EP84900074 A EP 84900074A EP 0161250 A1 EP0161250 A1 EP 0161250A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- screw
- thread
- further characterised
- head
- threaded
- 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- Withdrawn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
- 229910000760 Hardened steel Inorganic materials 0.000 claims description 2
- 239000002023 wood Substances 0.000 abstract description 17
- 238000005520 cutting process Methods 0.000 abstract description 2
- 238000003780 insertion Methods 0.000 description 9
- 230000037431 insertion Effects 0.000 description 9
- 238000010079 rubber tapping Methods 0.000 description 8
- 239000002184 metal Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 240000000731 Fagus sylvatica Species 0.000 description 1
- 235000010099 Fagus sylvatica Nutrition 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000011093 chipboard Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011122 softwood Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc 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
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
-
- 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
- F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
- F16B25/001—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by the material of the body into which the screw is screwed
- F16B25/0015—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by the material of the body into which the screw is screwed the material being a soft organic material, e.g. wood or plastic
-
- 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
- F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
- F16B25/0036—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw
- F16B25/0042—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw
- F16B25/0047—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw the ridge being characterised by its cross-section in the plane of the shaft axis
Definitions
- GB-A-1357720 It is also known from GB-A-1357720 to provide a self- tapping screw having a single or multi-start helical thread wherein the included angle of the thread profile at its crest is 40° but wherein the axis of symmetry of the thread profile is inclined towards the screw head by at least 5° from the perpendicular to the screw axis.
- Such a type of self-tapping screw is also known to be used in chipboard and is provided with a helix angle of between 10° and 12°.
- a hardened steel screw having a head at one end, an entry portion at the other end and a threaded shank portion extending from the entry portion towards the head characterised in that the thread profile is of helical form wherein the helix angle is 20 or more, the included angle of the thread profile at its crest is 40° or less and the thread profile is symmetrical about an axis perpendicular to the longitudinal axis of the screw.
- Screws produced in accordance with the invention are always hardened, either case hardened or through hardened, in order to give them sufficient torsional strength for use in their various applications i.e. in both hard and soft woods, man-made board materials, plastics or metals. It is of course conventional practice to harden self-tapping screws but wood screws are not usually hardened and reference may be had to Figure 4 which shows the relationship between torsional strength and nominal screw diameter (i.e. screw gauge number) for hardened and nonhardened screws.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Geometry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Dispersion Chemistry (AREA)
- Wood Science & Technology (AREA)
- Connection Of Plates (AREA)
- Joining Of Building Structures In Genera (AREA)
- Materials For Medical Uses (AREA)
- Polyesters Or Polycarbonates (AREA)
- Heterocyclic Compounds That Contain Two Or More Ring Oxygen Atoms (AREA)
- Transmission Devices (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8236024 | 1982-12-17 | ||
| GB8236024 | 1982-12-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0161250A1 true EP0161250A1 (de) | 1985-11-21 |
Family
ID=10535066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP84900074A Withdrawn EP0161250A1 (de) | 1982-12-17 | 1983-11-28 | Schraube |
Country Status (11)
| Country | Link |
|---|---|
| EP (1) | EP0161250A1 (de) |
| KR (1) | KR840007454A (de) |
| ES (1) | ES285333Y (de) |
| GB (1) | GB2131907B (de) |
| HK (1) | HK77787A (de) |
| IT (2) | IT8368312A0 (de) |
| NO (1) | NO842746L (de) |
| NZ (1) | NZ206599A (de) |
| SG (1) | SG51387G (de) |
| WO (1) | WO1984002380A1 (de) |
| ZA (1) | ZA839333B (de) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT389923B (de) * | 1988-01-29 | 1990-02-26 | Sfs Stadler Ag | Selbstbohrende und -gewindeschneidende schraube zum eindrehen in gasbeton |
| GB8912483D0 (en) * | 1989-05-31 | 1989-07-19 | Unifix Ltd | A fastening device |
| US5244327A (en) * | 1992-04-29 | 1993-09-14 | Whitesell Neil L | Trailer bed fastener |
| GB2325288A (en) * | 1997-05-14 | 1998-11-18 | Europ Ind Services Limited | Threaded fastener, and method and rolling dies for making it |
| US6702537B2 (en) * | 2001-01-12 | 2004-03-09 | Illinois Tool Works Inc. | High profile thread forming screw |
| DE10228505A1 (de) * | 2002-06-20 | 2004-01-08 | Swg Schraubenwerk Gaisbach Gmbh | Holzbauschraube und Verfahren zu ihrer Herstellung |
| AU2010200536B2 (en) * | 2010-02-12 | 2016-09-01 | Illinois Tool Works Inc. | Self-drilling screw |
| ITTV20120113A1 (it) * | 2012-06-12 | 2013-12-13 | Scarpa Calzaturificio Spa | Scarpone da sci |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2350346A (en) * | 1943-04-14 | 1944-06-06 | Clifford R Gaskell | Self-tapping screw |
| FR1440812A (fr) * | 1965-04-22 | 1966-06-03 | Visserie Boulonnerie Japy Soc | Vis notamment pour panneaux en matière reconstituée |
| GB1233175A (de) * | 1967-07-10 | 1971-05-26 | ||
| ES182479Y (es) * | 1972-03-15 | 1974-04-01 | Tornillo para madera. | |
| US3937119A (en) * | 1974-12-23 | 1976-02-10 | Illinois Tool Works, Inc. | Masonry anchor device |
| DE3003280A1 (de) * | 1980-01-30 | 1981-08-06 | Frank 5758 Fröndenberg Knoche | Selbstschneidende bzw. selbstfurchende schraube |
| FR2526498B1 (fr) * | 1982-05-10 | 1986-01-03 | Canalisations Ste Gle | Lyre de fixation rapide de profiles tubulaires dans des materiaux friables |
-
1983
- 1983-11-28 EP EP84900074A patent/EP0161250A1/de not_active Withdrawn
- 1983-11-28 GB GB08331727A patent/GB2131907B/en not_active Expired
- 1983-11-28 WO PCT/GB1983/000304 patent/WO1984002380A1/en not_active Application Discontinuation
- 1983-12-15 ZA ZA839333A patent/ZA839333B/xx unknown
- 1983-12-16 ES ES1983285333U patent/ES285333Y/es not_active Expired
- 1983-12-16 IT IT8368312A patent/IT8368312A0/it unknown
- 1983-12-16 KR KR1019830005967A patent/KR840007454A/ko not_active Application Discontinuation
- 1983-12-16 IT IT8354049U patent/IT8354049V0/it unknown
- 1983-12-16 NZ NZ206599A patent/NZ206599A/en unknown
-
1984
- 1984-07-05 NO NO842746A patent/NO842746L/no unknown
-
1987
- 1987-06-12 SG SG513/87A patent/SG51387G/en unknown
- 1987-10-22 HK HK777/87A patent/HK77787A/xx not_active IP Right Cessation
Non-Patent Citations (1)
| Title |
|---|
| See references of WO8402380A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| KR840007454A (ko) | 1984-12-07 |
| GB2131907A (en) | 1984-06-27 |
| NZ206599A (en) | 1985-08-16 |
| GB2131907B (en) | 1986-10-29 |
| GB8331727D0 (en) | 1984-01-04 |
| ES285333U (es) | 1985-09-01 |
| WO1984002380A1 (en) | 1984-06-21 |
| HK77787A (en) | 1987-10-30 |
| ZA839333B (en) | 1984-08-29 |
| NO842746L (no) | 1984-07-05 |
| ES285333Y (es) | 1989-08-01 |
| IT8354049V0 (it) | 1983-12-16 |
| IT8368312A0 (it) | 1983-12-16 |
| SG51387G (en) | 1987-08-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4572720A (en) | Wood screw | |
| US10954990B2 (en) | Low energy screws for wood and similar materials | |
| US4527932A (en) | Self-tapping screw | |
| US4329099A (en) | Self-drilling and self-extruding fastener | |
| US4028987A (en) | Self-drilling screws | |
| US7255523B2 (en) | Dual threaded screw for composite materials | |
| US4544313A (en) | Self-tapping screw | |
| US6050765A (en) | Fastener for logs and fastening technique therefor | |
| US3492908A (en) | Thread swaging screw or bolt | |
| CN1267795A (zh) | 具有主螺纹和副螺纹的紧固件 | |
| US5400845A (en) | Technique for fastening logs and fastener therefor | |
| GB2127927A (en) | Wood screws | |
| EP0161250A1 (de) | Schraube | |
| EP0281203B1 (de) | Schraube | |
| SE453772B (sv) | Borrskruv | |
| EP3719330A1 (de) | Schraube mit diskontinuität an zwischengewindeabschnitt | |
| US11248644B2 (en) | Nail screw | |
| AU2010200536B2 (en) | Self-drilling screw | |
| US2827820A (en) | Self-tapping screws | |
| EP0121108A1 (de) | Selbstbohrende und selbstverdrängende Schraube | |
| GB2072781A (en) | Woodscrew | |
| CA1275840C (en) | Drill screw | |
| EP1262669B1 (de) | Spanlos loch- und gewindeformende Schraube | |
| GB1564904A (en) | Self tapping screw | |
| DE2800620A1 (de) | Bohrschraube |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 19850104 |
|
| AK | Designated contracting states |
Designated state(s): AT BE CH DE FR LI LU NL SE |
|
| 17Q | First examination report despatched |
Effective date: 19860911 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 19870122 |
|
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: SEYMOUR, JAMES LAWRENCE Inventor name: HARDWICK, GEORGE EDWARD |