PL106039B1 - EXPANSION SCREW FOR FASTENING IN A HOLE - Google Patents
EXPANSION SCREW FOR FASTENING IN A HOLE Download PDFInfo
- Publication number
- PL106039B1 PL106039B1 PL1976188007A PL18800776A PL106039B1 PL 106039 B1 PL106039 B1 PL 106039B1 PL 1976188007 A PL1976188007 A PL 1976188007A PL 18800776 A PL18800776 A PL 18800776A PL 106039 B1 PL106039 B1 PL 106039B1
- Authority
- PL
- Poland
- Prior art keywords
- bolt
- sleeve
- taper
- expansion
- hole
- Prior art date
Links
- 239000000463 material Substances 0.000 claims description 12
- 230000007704 transition Effects 0.000 claims description 8
- 230000013011 mating Effects 0.000 claims description 2
- 238000004873 anchoring Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 1
- 238000007790 scraping Methods 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
- F16B13/06—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
- F16B13/065—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 the screw, nail or the like
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dowels (AREA)
- Joining Of Building Structures In Genera (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Materials For Medical Uses (AREA)
Description
Przedmiotem wynalazkujest sruba rozprezna do mocowania w otworze.The subject of the invention is an expansion bolt for fixing in a hole.
Znana jest sruba rozprezna do mocowania w otworze, z gwintowana czescia zewnetrzna do wspólpracy z nakretka, przy czym koniec wewnetrzny sruby ma ksztalt stozka wspólosiowego ze sruba, a najwezsza czesc tego stozka jest zwrócona do wewnetrznego konca sruby, zas cylindryczna czesc przejsciowa przy gwincie ma srednice mniejsza niz reszta sruby, a ponadto ta czesc przejsciowa jest luzno otoczona przez rozprezna tuleje, która jest przeznaczona do sprzegania sie ze sciana otworu, kiedy jest rozprezana przez wprowadzenie stozka w tuleje. Sruba taka ma zatem tuleje i czlon stozkowy przeznaczony do rozpierania tej tulei do scianek otworu, w którym sruba jest wprowadzona. Sila trzymajaca wywierana na tuleje, a wraz z nia na cala srube rozprezna, zalezy od stopnia zakotwienia tulei w sciankach otworu.There is an expansion bolt for fixing in a hole, with a threaded male part for mating with a nut, the internal end of the bolt having the shape of a coaxial cone with the bolt, and the tallest part this taper faces the inner end of the bolt and the cylindrical transition at the thread has Diameter smaller than the rest of the bolt, moreover, this transition piece is loosely surrounded by an expansion sleeve, which is intended to engage the wall of the opening when expanded by introducing a cone w bushings. Such a bolt thus has a bushing and a taper member intended to expose the bushing to the walls of the bore in which the bolt is introduced. The holding force exerted on the sleeves, and with it the whole bolt will expand, depends on the degree of anchoring of the sleeve in the walls of the hole.
Jezeli material sciany jest twardy i ma duza wytrzymalosc, zakotwienie tulei w sciankach bedzie male.If the wall material is hard and strong, the anchoring of the sleeve in the wall will be small.
Stozkowy czlon tulei nie moze byc wtedy przeciagany przez nia. Zwiekszenie sily ciagnionej wywieranej na srube spowoduje w koncu w tym przypadku zniszczenie sruby.The conical sleeve member may then not be pulled by it. Increasing the pull force exerted on the bolt will eventually destroy the bolt in this case.
Jezeli material scianyjest porowaty i ma mala wytrzymalosc wnikanie tulei w scianke otworu staje sie tak duze, ze stozkowy czlon tulei jest wyciagany przez tuleje. W takim przypadku sruba nie spelnia swego zadania.If the wall material is porous and has a low strength, the penetration of the sleeve into the hole wall becomes large that the tapered sleeve member is pulled through the sleeves. In this case, the screw does not fulfill its purpose.
W przypadku sruby rozpreznej do sciany z materialów porowatych o malej wytrzymalosci nacisk wywierany przez tuleje na sciany otworu musi byc rozlozony na wieksza powierzchnie niz w przypadku sruby dla sciany z twardego materialu. Wedlug wynalazku, powierzchnie przylozenia zwiekszono przez to, ze sruba rozpre zna ma kilka tulei i kilka stozków do ich rozpierania.In the case of an expansion bolt for walls made of porous materials with low pressure strength exerted by the sleeves on the walls of the hole must be distributed over a larger surface than in the case of a bolt for walls made of hard material. According to the invention, the bearing surfaces are increased by the fact that the screw The spreader has several sleeves and a few spreading cones.
Aby wszystkie tuleje dawaly zasadniczo jednakowe skladowe sily trzymajacej, wszystkie tuleje przy pokrecaniu sruby powinny sie tak samo rozprezac. Dzieki temu, ze tuleja jest wykonana z materialu o stosunkowo duzej grubosci, moze byc wciskana dosc gleboko w scianke otworu i opiera sie dzieki temu o dosc duza powierzchnie.In order for all bushings to exhibit substantially the same holding force components, all bushings at when you turn the screws, they should stretch the same. Due to the fact that the sleeve is made of the material o relatively thick, it can be pressed quite deep into the wall of the hole and thus rests against large area.
Aby uzyskac równomierne dzialanie wszystkich tulei, wszystkie one powinny miec dokladnie taka sama dlugosc, a wszystkie stozki powinny miec takie same wymiary. Wedlug wynalazku w celu uzyskania duzej2 106 039 dokladnosci wymiarów wszystkie stozki sruby rozpreznej i czesci przejsciowe usytuowane pomiedzy nimi sa wykonane jako jedna czesc z gwintem, a tuleja rozprezna ma grubosc materialu przynajmniej 0,1 raza wieksza niz zewnetrzna srednica sruby.To get all the bushings running evenly, they should all be exactly the same length, and all cones should be the same dimensions. According to the invention, to obtain large2 106 039 dimensional accuracy, all the expansion bolt cones and the transition parts between them are made in one piece with the thread and the expansion sleeve has a material thickness of at least 0.1 times as much than the outer diameter of the bolt.
Próby przeprowadzone ze srubami rozpreznymi wedlug wynalazku wykazaly, ze nawet gdy sruby te sa wprowadzone w sciany z porowatego materialu, tuleje i stozki daja razem tak duza sile trzymania, ze srube rozprezna mozna obciazyc sila ciagnaca zblizona do sily zerwania trzpienia sruby.Tests carried out with expansion bolts according to the invention have shown that even when the bolts are inserted into the walls of porous material, the sleeves and cones together give so much holding force that the bolt The expansion can be loaded with a tensile force close to the breaking force of the bolt shank.
W przypadku gdy czesc otworu na srube ma wyjatkowo duza srednice, tak ze jedna z tulei nie chwyta w otworze, z reguly inna tuleja chwyta tak, ze sruba rozprezna zostaje zamocowana. Zamocowania takiego nie moznaby uzyskac w przypadku stosowania sruby z tylko jedna tuleja i jednym stozkiem. Zatem sruba rozprezna wedlug wynalazku jest lepsza od sruby posiadajacej tylko jedna tuleje i jeden stozek.If part of the screw hole has an exceptionally large diameter, so that one of the sleeves does not catch the as a rule, another sleeve grips the bolt so that the expansion bolt is fixed. No such fastening could be obtained when using a bolt with only one sleeve and one taper. So the screw will spread according to the invention, it is superior to a bolt having only one sleeve and one taper.
Przedmiot wynalazku jest uwidoczniony w przykladzie wykonania na rysunku, na którym fig. 1 przedstawia kompletna srube rozprezna z trzema tulejami i trzema stozkami, fig. 2 — sama srube rozprezna z trzema stozkami, fig. 3 —jedna tuleje w widoku z boku, a fig. 4 jedna tuleje w widoku czolowym.The subject of the invention is illustrated in an exemplary embodiment in the drawing in which Fig. 1 shows a complete bolt expansion with three sleeves and three cones, Fig. 2 - bolt itself with with three cones, Fig. 3, one sleeve in a side view, and Fig. 4 one sleeve in a front view.
Sruba 1 z fig. 1 i 2 jest gwintowana na swym zewnetrznym koncu 2 dla wspóldzialania z nakretka (nie pokazano) a na swym wewnetrznym koncu ma postac trzech stozków 3. Stozki te sa wspólosiowe ze sruba, a ich najwezsze czesci sa zwrócone do zewnetrznego konca sruby. Kazda z najszerszych czesci stozków jest zakonczona krótka czescia cylindryczna 4, wyposazona w ostra krawedz do zgarniania luznego materialu przy wprowadzeniu sruby w otwór. Pomiedzy stozkiem 3 a sruba usytuowana jest cylindryczna czesc przejsciowa 5, której srednica jest mniejsza niz srednica sruby. Przy koncach czesci przejsciowych 5, które sa przeciwne do stozków 3 utworzone sa z nimi skierowane promieniowo wystepy 6.The screw 1 of Figs. 1 and 2 is threaded at its outer end 2 to interact with the nut (not shown) and has the form of three cones at its inner end 3. These cones are coaxial with the bolt, and their the narrowest parts face the outer end of the bolt. Each of the widest parts of the cones is ended short cylindrical part 4, equipped with a sharp edge for scraping off loose material when inserting the bolt into the hole. A cylindrical transition 5 is located between the cone 3 and the screw, whose diameter is smaller than the screw diameter. At the ends of the transition parts 5, which are opposite to of the cones 3, they are formed with radially directed projections 6.
Trzy cylindryczne czesci przejsciowe 5 sruby sa otoczone kazda tuleja 7 z materialu o równomiernej grubosci. Tuleja ma osiowa szczeline 8, która przebiega przez cala dlugosc tulei.Three cylindrical adapters 5 bolts are surrounded by each sleeve 7 of a uniform material thickness. The sleeve has an axial slot 8 which extends the entire length of the sleeve.
Jak wynika z fig. 3 tuleja ma ponadto pewna liczbe wyciec 9 w swej krawedzi, skierowanych do,stozka 3.As can be seen from Fig. 3, the sleeve also has a number of openings 9 in its edge directed towards the cone 3.
Tuleja 7 jest podzielona tymi wydeciami z utworzeniem koncówek 10, które mozna odgiac na zewnatrz do scianki otworu przy wprowadzaniu stozka w tuleje. Tuleja jest wykonana ze szczególnie grubego materialu. W opisywanym przykladzie wykonania grubosc materialu tulei jest 0,15 razy wieksza od zewnetrznej srednicy sruby.The sleeve 7 is divided by these holes to form tips 10 that can be bent outwards to the walls of the opening when introducing the cone into the sleeves. The sleeve is made of a particularly thick material. IN In the described embodiment, the thickness of the sleeve material is 0.15 times greater than the outer diameter bolts.
Twardosc materialu sciany, której sruba rozprezna wedlug wynalazku ma byc umocowana, powinna wplywac na wybór liczby tulei i stozków sruby. W pewnych przypadkach korzystne jest wybranie sruby rozpreznej z liczba tulei i stozków inna niz trzy.The material hardness of the wall to which the bolt is to be stretched according to the invention should be fixed affect the choice of number of sleeves and cones of the bolt. In some cases it is preferable to select a bolt with a number of sleeves and cones other than three.
Na figurze 2 stozki 3 sruby rozpreznej maja kat, korzystnie do 22°. Oczywiscie srube wedlug wynalazku mozna równiez wykonac z innym katem stozka.2, the cones 3 of the expansion screw have an angle, preferably up to 22 °. Of course, the bolt according to the invention can also be done with a different cone angle.
Claims (2)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7503103*[A SE384071B (en) | 1975-03-19 | 1975-03-19 | DEVICE AT AN EXPANDER BOLT |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL106039B1 true PL106039B1 (en) | 1979-11-30 |
Family
ID=20323998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL1976188007A PL106039B1 (en) | 1975-03-19 | 1976-03-17 | EXPANSION SCREW FOR FASTENING IN A HOLE |
Country Status (11)
| Country | Link |
|---|---|
| JP (1) | JPS51117265A (en) |
| CA (1) | CA1036849A (en) |
| DE (1) | DE2607451A1 (en) |
| DK (1) | DK116376A (en) |
| FI (1) | FI52899C (en) |
| FR (1) | FR2304813A1 (en) |
| GB (1) | GB1517431A (en) |
| IT (1) | IT1062926B (en) |
| NO (1) | NO142044C (en) |
| PL (1) | PL106039B1 (en) |
| SE (1) | SE384071B (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2733007C2 (en) * | 1977-07-21 | 1987-03-19 | Hilti Ag, Schaan | Adhesive anchor |
| US4366651A (en) * | 1979-10-06 | 1983-01-04 | Newport Borough Council, Of Civic Centre | Fixing devices |
| SE420009B (en) * | 1979-12-21 | 1981-09-07 | Ericsson Telefon Ab L M | EXPANDER SCREW FOR FIXING IN A SPACE |
| NO159678C (en) * | 1982-05-14 | 1989-01-25 | Weidmann H Ag | MOUNTAIN SECURING ANCHOR. |
| GB2137712A (en) * | 1983-04-08 | 1984-10-10 | Perard Torque Tension Ltd | Rock bolt assembly |
| JPS6051312U (en) * | 1983-09-16 | 1985-04-11 | 清水建設株式会社 | hole-in anchor |
| US4688977A (en) * | 1984-01-13 | 1987-08-25 | Seetaram Joan P | Stud anchor |
| DE3637658A1 (en) * | 1986-11-05 | 1988-05-19 | Hilti Ag | SPREADING DOWEL WITH TWO DIFFERENT SPREADING ACCOUNTS |
| GB2212581B (en) * | 1987-11-17 | 1991-08-14 | Dom Holdings Plc | An anchor bolt or fixing |
| DE59004679D1 (en) * | 1989-11-04 | 1994-03-31 | Upat Max Langensiepen Kg | Anchor rod. |
| DE4333498A1 (en) * | 1993-10-01 | 1995-04-06 | Upat Max Langensiepen Kg | Expansion anchor |
| DE10020482A1 (en) * | 2000-04-26 | 2001-10-31 | Fischer Artur Werke Gmbh | Anchors for soft or porous building materials |
| US20100272536A1 (en) | 2009-04-22 | 2010-10-28 | Stanley Kaplan | Double collar wedge anchor |
| CN107956777A (en) * | 2017-11-17 | 2018-04-24 | 黄传勇 | A kind of polycyclic pull explosive screw |
| EP3636940A1 (en) * | 2018-10-09 | 2020-04-15 | Hilti Aktiengesellschaft | Expansion anchor with bulged zone |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB367547A (en) * | 1934-04-27 | 1932-02-25 | Noel Phillips | Improvements in expansion sockets for bolts for building and engineering purposes |
| US2139167A (en) * | 1938-06-24 | 1938-12-06 | George W Marshall | Bolt anchor |
| US3302509A (en) * | 1964-04-03 | 1967-02-07 | Henry J Modrey | Expansion anchor |
| DE1814485C3 (en) * | 1968-12-13 | 1980-09-04 | Hilti Ag, Schaan (Liechtenstein) | Fixing dowels |
-
1975
- 1975-03-19 SE SE7503103*[A patent/SE384071B/en not_active IP Right Cessation
-
1976
- 1976-02-16 FI FI760371A patent/FI52899C/en not_active IP Right Cessation
- 1976-02-24 DE DE19762607451 patent/DE2607451A1/en not_active Ceased
- 1976-03-09 GB GB9434/76A patent/GB1517431A/en not_active Expired
- 1976-03-11 CA CA247,659A patent/CA1036849A/en not_active Expired
- 1976-03-17 PL PL1976188007A patent/PL106039B1/en unknown
- 1976-03-17 DK DK116376A patent/DK116376A/en unknown
- 1976-03-18 IT IT21379/76A patent/IT1062926B/en active
- 1976-03-18 FR FR7607847A patent/FR2304813A1/en active Granted
- 1976-03-18 NO NO760957A patent/NO142044C/en unknown
- 1976-03-18 JP JP51029791A patent/JPS51117265A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| SE384071B (en) | 1976-04-12 |
| DE2607451A1 (en) | 1976-09-30 |
| NO760957L (en) | 1976-09-21 |
| NO142044C (en) | 1980-06-18 |
| FI52899C (en) | 1977-12-12 |
| FI760371A (en) | 1976-09-20 |
| GB1517431A (en) | 1978-07-12 |
| DK116376A (en) | 1976-09-20 |
| FR2304813B1 (en) | 1980-05-30 |
| NO142044B (en) | 1980-03-10 |
| CA1036849A (en) | 1978-08-22 |
| IT1062926B (en) | 1985-02-11 |
| FR2304813A1 (en) | 1976-10-15 |
| JPS51117265A (en) | 1976-10-15 |
| FI52899B (en) | 1977-08-31 |
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