NO753743L - - Google Patents
Info
- Publication number
- NO753743L NO753743L NO753743A NO753743A NO753743L NO 753743 L NO753743 L NO 753743L NO 753743 A NO753743 A NO 753743A NO 753743 A NO753743 A NO 753743A NO 753743 L NO753743 L NO 753743L
- Authority
- NO
- Norway
- Prior art keywords
- bolt
- sleeve
- accordance
- expansion
- nut
- Prior art date
Links
- 210000002105 tongue Anatomy 0.000 claims description 2
- 238000010276 construction Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000008719 thickening Effects 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
- F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
- F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
- F16B13/045—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front having axially compressing parts allowing the clamping of an object tightly to the wall
-
- 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
- F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
- F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
- F16B13/06—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve
- F16B13/063—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander
- F16B13/066—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander fastened by extracting a separate expander-part, actuated by the screw, nail or the like
Description
Den foreliggende oppfinnelse vedrører en ekspansjonsbolt som omfatter et hode og et gjenget skaft, en konisk mutter samt en ekspansjonshylse som er slisset i lengderetningen og som passer om boltskaftet og er ekspanderbar ved inntrekking av mutteren i dens ytterende. The present invention relates to an expansion bolt which comprises a head and a threaded shaft, a conical nut and an expansion sleeve which is slotted in the longitudinal direction and which fits around the bolt shaft and is expandable by pulling in the nut at its outer end.
Ved anvendelse av ekspansjonsbolter etterstrebes blant annet å fylle ut hull med minst mulig overmål og å kunne av-slutte bolten med et hode istedenfor å fremstille den som pinneskrue med mutter. Konstruksjonen må da muliggjøre aksial forkortelse av boltens hylseparti uten nevneverdig fortykkelse av dette for at bolten skal kunne trekkes til~ dannelse av an-legg mellom hodet og den del som skal festes. Ifølge en kjent utførelsesform har man løst dette problem ved i en del av eks-pans jonshylsens lengde å erstatte denne med aksialt sammentrykk-bare plastbrikker som muliggjør fortsatt trekking av bolten etter at hylsens ekspansjon er stoppet mot hullveggen. Ulempen med dette er foruten at antall elementer som inngår i bolten blir større fremfor alt at det blir anvendt konstruksjonsele-menter med usikre langtidsegenskaper som eventuelt kan medvirke til at forbandet blir løsere. When using expansion bolts, the aim is, among other things, to fill in holes with the smallest possible oversize and to be able to end the bolt with a head instead of producing it as a stud screw with a nut. The construction must then enable axial shortening of the bolt's sleeve part without significant thickening of this, so that the bolt can be pulled to form a connection between the head and the part to be fixed. According to a known embodiment, this problem has been solved by replacing part of the expansion sleeve's length with axially compressible plastic pieces that enable continued pulling of the bolt after the sleeve's expansion has stopped against the hole wall. The disadvantage of this is that the number of elements included in the bolt becomes greater, above all, that construction elements with uncertain long-term properties are used, which may possibly contribute to the connection becoming looser.
Disse ulemper er eliminert ved ekspansjonsbolten ifølge oppfinnelsen ved at denne har fått de i kravene angitte kjenne-tegn. These disadvantages have been eliminated by the expansion bolt according to the invention in that it has been given the characteristics specified in the requirements.
Ekspansjonsbolten ifølge oppfinnelsen og de ytterligere fordeler som utmerker denne vil bli nærmere beskrevet i det etterfølgende under henvisning til den medfølgende tegning, hvori: Fig. 1 viser et sideriss av et utførelseseksempel av en ekspansjonsbolt ferdig til å innsettes i et ikke vist hull, f.eks. en vegg eller et gulv. The expansion bolt according to the invention and the further advantages which distinguish it will be described in more detail below with reference to the accompanying drawing, in which: Fig. 1 shows a side view of an embodiment of an expansion bolt ready to be inserted in a hole not shown, e.g. e.g. a wall or a floor.
Fig. 2 viser bolten etter ekspansjon og trekking. Fig. 2 shows the bolt after expansion and pulling.
Fig. 3 viser et snitt langs linjen III-III i fig. 1. Fig. 4 viser et snitt langs linjen IV-IV i fig. 1. Fig. 3 shows a section along the line III-III in fig. 1. Fig. 4 shows a section along the line IV-IV in fig. 1.
Ekspansjonsbolten som er vist på tegningen består av en egentlig bolt 10 med sekskantet hode 11 og et skaft som består av en grovere del 12 nærmest hodet og en litt tynnere del 13 som mot yttersiden er utformet med en gjenge 14 som er best synlig i fig. 2. På boltskaftets tynnere del 13 er det tredd en metallhylse 15 som passer om den tynnere del og som har samme ytterdiameter som den grovere skaftdel 12, mot hvis endeansats hylsen kan støtte. Hylsen 15 er i ytterenden opp-slisset med langsgående spor 16 som munner ut i hull 17 og er dessuten utstyrt med en gjennomgående, langsgående sliss 18 (fig. 3) som er fremkommet ved at hylsen er ombøyet av et plant metallstykke. The expansion bolt shown in the drawing consists of an actual bolt 10 with a hexagonal head 11 and a shaft which consists of a coarser part 12 closest to the head and a slightly thinner part 13 which towards the outside is designed with a thread 14 which is best visible in fig. 2. On the bolt shaft's thinner part 13, a metal sleeve 15 is threaded which fits around the thinner part and which has the same outer diameter as the coarser shaft part 12, against whose end projection the sleeve can support. The sleeve 15 is slotted at the outer end with a longitudinal groove 16 which opens into a hole 17 and is also equipped with a continuous, longitudinal slot 18 (fig. 3) which is produced by the sleeve being bent by a flat piece of metal.
Sporene 16, 18 muliggjør ekspansjon av hylsens ytre ende ifølge fig. 2 når en konisk mutter 19 som er skrudd på gjengen 14 trekkes inn i hylsen. Mutteren 19 er på den koniske flate utformet med rifler 2 0 i generatrisenes retning, og hylsens 15 ende er innvendig utformet med motsvarende konisitet og rifler (ikke vist), slik at mutteren 19 hindres i å dreie seg i forhold til hylsen ved tiltrekking. For at ikke hylsen og mutteren skal dreies i hullet er kantene på hylsen inntil den gjennomgående sliss 18 bøyet litt utover som et par lepper 21 som danner inngrep med hullveggen ved innsetting og tiltrekking av bolten. Ved grovere bolter kan det være hensiktsmessig å stanse og bøye litt ut tunger av metall inntil den langsgående sliss ved den i dreietetningen bakre kant av denne, slik at det suksessivt oppnås et fastere sperreinngrep ved tiltrekking av bolten. The grooves 16, 18 enable expansion of the sleeve's outer end according to fig. 2 when a conical nut 19 which is screwed onto the thread 14 is pulled into the sleeve. The nut 19 is designed on the conical surface with flutes 20 in the direction of the generatrix, and the end of the sleeve 15 is internally designed with corresponding taper and flutes (not shown), so that the nut 19 is prevented from turning in relation to the sleeve when tightening. In order to prevent the sleeve and the nut from turning in the hole, the edges of the sleeve up to the continuous slot 18 are bent slightly outwards as a pair of lips 21 which form an engagement with the hole wall when inserting and tightening the bolt. In the case of coarser bolts, it may be appropriate to punch and slightly bend metal tongues until the longitudinal slot at the rear edge of the pivot seal, so that a firmer locking engagement is successively achieved when the bolt is tightened.
For å muliggjøre nødvendig aksial innskruing av bolten etter hylsens ekspansjon og fastlåsing i hullet er hylsen frem-stilt sammentrykkbar aksialt. Dette er oppnådd ved at hylsen på den del som bortsett fra den gjennomgående sliss 18 ikke har slisser, er utformet med tverrgående, avlange åpninger eller spor 22. I det viste utførelseseksempel er disse spor anordnet i to aksialt atskilte rekker, og disse rekker er til dels forskjøvet slik at det oppnås en viss overlapping. Til-bakeblevne materialbroer 23 er holdt ganske smale og lar seg ved innskyvning av bolten deformere slik at hylsen trykkes sammen aksialt (fig. 2) uten nevneverdige forskyvninger i det rom som avgrenses av hullet og boltskaftets del 13 med mindre diameter og derved muliggjør innskruing av bolten lenger inn i hullet. To enable the necessary axial screwing in of the bolt after the sleeve's expansion and locking in the hole, the sleeve is designed to be axially compressible. This is achieved by the fact that the sleeve on the part which apart from the continuous slot 18 does not have slots, is designed with transverse, elongated openings or grooves 22. In the embodiment shown, these grooves are arranged in two axially separated rows, and these rows are partly shifted so that a certain overlap is achieved. Remaining material bridges 23 are kept quite narrow and allow themselves to be deformed when the bolt is pushed in so that the sleeve is pressed together axially (fig. 2) without significant displacements in the space delimited by the hole and the smaller diameter part 13 of the bolt shaft, thereby enabling the screwing in of the bolt further into the hole.
Ved innspenningen mellom ansatsen på bolten og konusen på mutteren holdes hylsen 15 sikkert på plass under alle forhold, og man behøver aldri risikere at hylsen glir av fra mutterkonusen på grunn av vibrasjoner eller tilfeldige av-lastninger, noe som derimot kan inntreffe hos konstruksjoner som mangler endeanslag for ekspansjonshylsen. When clamping between the shoulder of the bolt and the cone of the nut, the sleeve 15 is securely held in place under all conditions, and one never has to risk the sleeve slipping off the nut cone due to vibrations or accidental unloading, which, on the other hand, can occur with constructions that lack end stop for the expansion sleeve.
Claims (7)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7414179A SE386489B (en) | 1974-11-12 | 1974-11-12 | EXPANSION BOLT |
Publications (1)
Publication Number | Publication Date |
---|---|
NO753743L true NO753743L (en) | 1976-05-13 |
Family
ID=20322671
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO753743A NO753743L (en) | 1974-11-12 | 1975-11-10 |
Country Status (10)
Country | Link |
---|---|
BE (1) | BE835310A (en) |
CH (1) | CH591024A5 (en) |
DE (1) | DE2550230A1 (en) |
DK (1) | DK505175A (en) |
FI (1) | FI753129A (en) |
FR (1) | FR2291400A1 (en) |
GB (1) | GB1487030A (en) |
NL (1) | NL7512944A (en) |
NO (1) | NO753743L (en) |
SE (1) | SE386489B (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1983003645A1 (en) * | 1982-04-15 | 1983-10-27 | Douglas Owen Mcintyre | An anchor bolt |
DE3225579A1 (en) * | 1982-07-08 | 1984-01-12 | M.Meisinger KG, 8890 Aichach | HEAVY DUTY METAL DOWEL |
GB2126305B (en) * | 1982-08-27 | 1985-10-09 | Ramset Fasteners | Expansion sleeve and anchorage device incorporating the sleeve |
IT1214937B (en) * | 1985-01-31 | 1990-01-31 | Morassutti Paolo | EXPANSION DOWEL. |
GB8606440D0 (en) * | 1986-03-15 | 1986-04-23 | Johnson Metal Press Workers Lt | Fastening device |
GB8611720D0 (en) * | 1986-05-14 | 1986-06-25 | Rawlplug Co Ltd | Expansion fixing |
FR2628158B1 (en) * | 1988-03-02 | 1990-05-18 | Prospection & Inventions | EXPANSION ANKLE BY CONE |
DE4306869C2 (en) * | 1993-03-05 | 2002-01-24 | Toge Duebel A Gerhard Kg | Fastening device for fixing in a hole in solid material, in particular concrete |
DE19534365A1 (en) * | 1995-09-15 | 1997-03-20 | Fischer Artur Werke Gmbh | Expansion dowels |
AUPQ484799A0 (en) * | 1999-12-23 | 2000-02-03 | Cetram Pty Limited | Masonry anchors |
DE102007039087A1 (en) * | 2007-08-18 | 2009-02-19 | Fischerwerke Gmbh & Co. Kg | Split anchor with expanding casing, anchoring bolts and tapered insert at fixed distance from support shows decreased dependence on borehole (sic) expansion diameter and strength of anchor base |
DE102007043031A1 (en) * | 2007-09-11 | 2009-03-12 | Fischerwerke Gmbh & Co. Kg | insulation fixing |
CN109850735A (en) * | 2019-01-28 | 2019-06-07 | 康力电梯股份有限公司 | A kind of horizontal sidewalk equipped with middle part handrail regulating device |
-
1974
- 1974-11-12 SE SE7414179A patent/SE386489B/en unknown
-
1975
- 1975-11-05 NL NL7512944A patent/NL7512944A/en unknown
- 1975-11-06 BE BE161637A patent/BE835310A/en unknown
- 1975-11-07 FI FI753129A patent/FI753129A/fi not_active Application Discontinuation
- 1975-11-08 DE DE19752550230 patent/DE2550230A1/en active Pending
- 1975-11-10 GB GB46371/75A patent/GB1487030A/en not_active Expired
- 1975-11-10 FR FR7534261A patent/FR2291400A1/en not_active Withdrawn
- 1975-11-10 NO NO753743A patent/NO753743L/no unknown
- 1975-11-10 DK DK505175A patent/DK505175A/en unknown
- 1975-11-11 CH CH1456875A patent/CH591024A5/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
SE7414179L (en) | 1976-05-13 |
CH591024A5 (en) | 1977-08-31 |
BE835310A (en) | 1976-03-01 |
NL7512944A (en) | 1976-05-14 |
DK505175A (en) | 1976-05-13 |
FI753129A (en) | 1976-05-13 |
SE386489B (en) | 1976-08-09 |
DE2550230A1 (en) | 1976-05-13 |
GB1487030A (en) | 1977-09-28 |
FR2291400A1 (en) | 1976-06-11 |
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