NO126877B - - Google Patents
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- Publication number
- NO126877B NO126877B NO17039967A NO17039967A NO126877B NO 126877 B NO126877 B NO 126877B NO 17039967 A NO17039967 A NO 17039967A NO 17039967 A NO17039967 A NO 17039967A NO 126877 B NO126877 B NO 126877B
- Authority
- NO
- Norway
- Prior art keywords
- hardness
- masonry
- screw
- bossing
- hole
- Prior art date
Links
- 239000000463 material Substances 0.000 claims description 26
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 4
- 239000004800 polyvinyl chloride Substances 0.000 claims description 4
- 239000004567 concrete Substances 0.000 description 5
- 238000000605 extraction Methods 0.000 description 5
- 239000004566 building material Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-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
- F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
- F16B13/02—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose in one piece with protrusions or ridges on the shaft
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dowels (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Retaining Walls (AREA)
Description
Murbøssing av den art som har langsgående utsparinger og som består av elastisk eller plastisk ettergivende materiale. Masonry bushings of the type that have longitudinal recesses and that consist of elastic or plastically yielding material.
Oppfinnelsen angår en murbossing av den art som har langsgående utsparinger og som består av elastisk eller plasti.sk ettergivende materiale, spesielt polyvinylklorid, og som er innrettet til å anbringes i et hull og å omslutte et fast-gjorelsesorgan, spesielt en skrue. The invention relates to a masonry boss of the kind which has longitudinal recesses and which consists of elastic or plastically yielding material, especially polyvinyl chloride, and which is arranged to be placed in a hole and to enclose a fixing means, especially a screw.
Slike murbossinger har vanligvis utvendige og innvendige riller, slik at de kan trykkes sammen og utvides. Der bores vanligvis et hull, hvis diameter er litt mindre enn mur-bossingens utvendige diameter, slik at murbdssingen sammen-trykkes lett ved innsetting i hullet. Der anvendes,som regel en skrue med tilspisset grov gjengning, en såkalt treskrue eller en fransk skrue, som ved innskruing utvider murbossingen suksessivt, hvorved dens materiale blir sammenpresset mot hullveggen og trenger inn i fordypninger i denne, hvorved der fås en effektiv fastholdning av murbossingen og dermed av skruen. Such masonry bosses usually have external and internal grooves, so that they can be pressed together and expanded. A hole is usually drilled there, the diameter of which is slightly smaller than the outside diameter of the masonry boss, so that the masonry boss is compressed easily when inserted into the hole. As a rule, a screw with a pointed coarse thread, a so-called wood screw or a French screw is used, which when screwed in successively expands the masonry boss, whereby its material is compressed against the hole wall and penetrates into recesses in it, whereby an effective retention of the masonry boss is obtained and thus off the screw.
Da skruen består av sterkere materiale enn murbossingen, har man hittil anvendt forholdsvis hardt og dermed sterkt materiale til murbossingene, for at deres styrke skulle svare mest mulig til styrken av skruene, slik at der derved skulle oppnås maksimal styrke, og der er da herved oppnådd særdeles gode resultater. As the screw consists of a stronger material than the masonry bosses, relatively hard and therefore strong material has been used for the masonry bosses so that their strength should correspond as closely as possible to the strength of the screws, so that maximum strength would thereby be achieved, and this has been achieved extremely good results.
Det har imidlertid nå ifolge oppfinnelsen overraskende vist seg at der kan oppnås enda bedre resultater når der anvendes blotere materiale til murbossingene. Ifolge oppfinnelsen består en murbossing av den innledningsvis angitte art i det minste i de utvendige deler av et materiale, som ved værelsestemperatur (20°C) har en hardhet på 59 til 69 shore hardness D2 (ASTM D 676-58 T og D 1484-57 T normer, med belastning 5 kg), fortrinnsvis omkring 64 shore hardness D2.Det har overraskende vist seg at med murbossinger av sådant materiale, spesielt polyvinylklorid, vil uttrekksforsok i betong gi som resultat at skruen trekkes over. Ved uttrekksforsok i svake bygningsmaterialer, f.eks. med en trykkstyrke på 30-50 kg pr. cm<2>fås resultater, som overraskende er bedre enn man kunne forvente i betraktning av bygningsmaterialets styrke. However, according to the invention, it has now surprisingly turned out that even better results can be achieved when plainer material is used for the masonry bosses. According to the invention, a wall bossing of the type indicated at the outset consists at least in the external parts of a material, which at room temperature (20°C) has a hardness of 59 to 69 shore hardness D2 (ASTM D 676-58 T and D 1484- 57 T norms, with a load of 5 kg), preferably around 64 shore hardness D2. It has surprisingly turned out that with masonry bosses made of such material, especially polyvinyl chloride, extraction attempts in concrete will result in the screw being pulled over. In case of pull-out attempts in weak building materials, e.g. with a compressive strength of 30-50 kg per cm<2> results are obtained, which are surprisingly better than one might expect considering the strength of the building material.
Materialet kan ifolge oppfinnelsen ved 50°C ha en hardhet på 33 til 43 shore hardness D2, og ved avkjoling til væi&ses-temperatur får det igjen den ovenfor angitte hardhet på 59 til 69 shore hardness D2. Ved utnyttelse av denne særlig lave hardhet ved forhoyet temperatur oppnås særlig gode resultater. According to the invention, the material can have a hardness of 33 to 43 shore hardness D2 at 50°C, and upon cooling to water temperature, it regains the above stated hardness of 59 to 69 shore hardness D2. By utilizing this particularly low hardness at an elevated temperature, particularly good results are achieved.
På tegningen er vist en murbossing ifolge oppfinnelsen,The drawing shows a wall boss according to the invention,
idet figuren viser et tverrsnitt i murbtissingen.as the figure shows a cross-section in the brick biting.
Murbossingen har omtrent sirkulær ytre omkrets, og den harThe masonry boss has an approximately circular outer circumference, and it has
et omtrentlig sylindrisk hull, hvorfra strekker seg radiale utsparinger utover. I den omtrentlig sylindriske ytre overfla-te er utformet forholdsvis flate utsparinger, hvorved er dan-net tre massive lengdeklosser 1 og tynne harmonikaaktige forbindelsesdeler 2. an approximately cylindrical hole, from which radial recesses extend outward. Relatively flat recesses are formed in the approximately cylindrical outer surface, whereby three massive longitudinal blocks 1 and thin harmonica-like connecting parts 2 are formed.
Murbbssingen kan med fordel være fremstilt ved ekstrudering, The mortar lining can advantageously be produced by extrusion,
■lik at den har samme tverrsnitt i hele sin lengde. Den består av polyvinylklorid med en hardhet på omkring 64 shore ■like that it has the same cross-section throughout its length. It consists of polyvinyl chloride with a hardness of around 64 Shore
hardness D2.hardness D2.
Ved anvendelse av murbossingen bores i en mur et hull, hvis diameter er litt mindre enn ytterdiameteren av murbossingen. Murbossingen innsettes i hullet, hvorved den trykkes litt sammen, idet delene 2 boyes. Deretter innskrues en skrue When using the wall bossing, a hole is drilled in a wall, the diameter of which is slightly smaller than the outer diameter of the wall bossing. The masonry bossing is inserted into the hole, whereby it is slightly pressed together, as the parts 2 are bowed. A screw is then screwed in
med grov tilspisset gjengning, en såkalt treskrue eller en fransk skrue. Denne vil inngripe med innersiden av de massive lengdeklosser 1 og vil suksessivt trykke disse utover, slik at de presses mot hullveggen. Når skruen har den rette storrelse, vil det skje en kraftig komprimering av materialet, slik at hullet utfylles fullstendig, og materialet vil trenge inn i fordypninger i hullveggen, hvorved der fås en kraftig motstand mot uttrekking av murbossingen. Dessuten fås en kraftig sammenpressing av murbossingsmaterialet omkring skruen, slik at der fås en kraftig motstand mot uttrekking with coarse pointed threading, a so-called wood screw or a French screw. This will engage with the inside of the massive longitudinal blocks 1 and will successively press these outwards, so that they are pressed against the hole wall. When the screw is the right size, a strong compression of the material will take place, so that the hole is completely filled, and the material will penetrate into depressions in the hole wall, whereby a strong resistance to the extraction of the masonry boss is obtained. In addition, a strong compression of the masonry bossing material around the screw is obtained, so that a strong resistance to extraction is obtained
av skruen. Når murbossingsmaterialet har en kraftig for-minsket hardhet ved forhoyet temperatur, f.eks. omkring 38 shore hardness D2 ved 50°C, kan dette forhold utnyttes til å bevirke en særlig god inntrengning i fordypninger i hullveggen, slik at der fås en særlig hdy motstand mot uttrekking av hullet. Når murbossingen senere avkjbles, får materialet igjen den opprinnelige hardhet og dermed styrke. Murbossingen kan istedenfor fremstilles ved sprbytestopning, hvorved den kan utfores med varierende tverrsnitt. Den kan således ved den ene ende ha en krage eller annen utvidelse. Dens innvendige diameter kan eventuelt avta fra den ene ende til den annen, f.eks. svarende til skruens konisitet. Ved sproytestopning kan murbossingen utformes spesielt til bruk ved innstbpning i betong, i hvilket tilfelle den kan være forsynt med utvendige fremspring. of the screw. When the wall bossing material has a greatly reduced hardness at elevated temperature, e.g. around 38 shore hardness D2 at 50°C, this ratio can be used to effect a particularly good penetration into depressions in the hole wall, so that a particularly high resistance to extraction of the hole is obtained. When the masonry bosses are later decoupled, the material regains its original hardness and thus strength. The masonry bossing can instead be produced by sprbyte filling, whereby it can be made with varying cross-sections. It can thus have a collar or other extension at one end. Its internal diameter may possibly decrease from one end to the other, e.g. corresponding to the taper of the screw. In the case of spray plugging, the masonry bossing can be specially designed for use when embedding in concrete, in which case it can be provided with external projections.
Murbbssingen kan være utfort av materiale med forskjellig hardhet. Det kan således være fordelaktig at de innerste deler av murbbssingen består av forholdsvis hardt materiale, mens de utvendige deler består av forholdsvis blott materiale. Herved kan der fås en særlig god innpressing ay materialet The masonry can be made of material with different hardness. It can thus be advantageous that the innermost parts of the mortar seam consist of relatively hard material, while the outer parts consist of relatively bare material. In this way, a particularly good pressing into the material can be achieved
i fordypninger i hullets vegg, og sa mtidig har de indre deler stor styrke og derav fblgende stor motstand mot uttrekking av skruen. En sådan murbossing av materiale med forskjellig hardhet kan forholdsvis lett fremstilles ved ekstrudering. Også ved sprbytestopning vil «fer være mulig-het for å fremstille en murbossing' av materiale med forskjel- -lig hardhet i forskjellige deler av bossingen. Murbbssingen kan ha andre tverrsnitt enn det viste. in depressions in the wall of the hole, and so the inner parts have great strength and consequently great resistance to the extraction of the screw. Such wall bossing of material with different hardness can be produced relatively easily by extrusion. Also with sprbyte filling, it will be possible to produce a masonry bossing of material with different hardness in different parts of the bossing. The masonry can have different cross-sections than shown.
Den beskrevne murbossing har vist seg meget fordelaktigThe wall bossing described has proven to be very beneficial
i murer av harde sterke materialer, så som betong, hvor der er oppnådd så gode resultater med hensyn til uttrek-kingsstyrke at den anvendte skrue overtrekkes uten at murbbssingen lbsnes. Ved murer av svakere materiale, f.eks. med en trykkstyrke på 30-35 kg pr. cm 2, f.eks. lecabetong og gassbetong, er der oppnådd, resultater, som er bedre enn man kunne forvente i betraktning av murmaterialets styrke. Med hensyn til hardhetens definisjon skal henvises til fblgende. B.P. anvender ASTM D 1706 og Solvie anvender ASTM D 676-58T og ASTM D 1484-57T. For det anvendte hardhetsprbveapparat henvises til DIN 53505 og ASTM D 676. in walls of hard, strong materials, such as concrete, where such good results have been achieved with regard to pull-out strength that the screw used is overtightened without loosening the masonry. For walls of weaker material, e.g. with a compressive strength of 30-35 kg per cm 2, e.g. aerated concrete and aerated concrete, results have been achieved which are better than one might expect considering the strength of the masonry material. With regard to the definition of hardness, reference should be made to the following. BP uses ASTM D 1706 and Solvie uses ASTM D 676-58T and ASTM D 1484-57T. For the hardness tester used, reference is made to DIN 53505 and ASTM D 676.
Claims (2)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK581466 | 1966-11-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO126877B true NO126877B (en) | 1973-04-02 |
Family
ID=8145437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO17039967A NO126877B (en) | 1966-11-09 | 1967-11-04 |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE1625406A1 (en) |
| GB (1) | GB1211245A (en) |
| NO (1) | NO126877B (en) |
| SE (1) | SE300911B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0041958A1 (en) * | 1979-12-07 | 1981-12-23 | HUBER & SUHNER AG KABEL-, KAUTSCHUK-, KUNSTSTOFF-WERKE | Anti-noise plug |
| DK366481A (en) * | 1981-05-18 | 1982-11-19 | Expandet Screw Anchors | ROD SHAPED SCREW ASSEMBLY |
| DE3206290A1 (en) * | 1982-02-22 | 1983-09-01 | Hilti AG, 9494 Schaan | SPREADING ANCHOR |
| US6679662B2 (en) * | 1995-10-01 | 2004-01-20 | Fischerwerke Artur Fischer Gmbh & Co. Kg | Expansible plug |
| DE19600931A1 (en) * | 1996-01-12 | 1997-07-17 | Fischer Artur Werke Gmbh | Wall plug for anchoring e.g. screw or similar component in a wall |
| CR11560A (en) * | 2010-07-08 | 2010-07-29 | Roberto Lang Ortiz Luis | PLASTIC PLASTIC FASTENING EXPANSION CLAMP FOR ANCHORING SCREWS IN CONCRETE, BLOCK, BRICK OR STONE |
-
1967
- 1967-11-04 NO NO17039967A patent/NO126877B/no unknown
- 1967-11-07 GB GB5053067A patent/GB1211245A/en not_active Expired
- 1967-11-08 DE DE19671625406 patent/DE1625406A1/en active Pending
- 1967-11-09 SE SE1535167A patent/SE300911B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB1211245A (en) | 1970-11-04 |
| DE1625406A1 (en) | 1970-05-21 |
| SE300911B (en) | 1968-05-13 |
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