PL117356B1 - Peg - Google Patents

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Publication number
PL117356B1
PL117356B1 PL1978210743A PL21074378A PL117356B1 PL 117356 B1 PL117356 B1 PL 117356B1 PL 1978210743 A PL1978210743 A PL 1978210743A PL 21074378 A PL21074378 A PL 21074378A PL 117356 B1 PL117356 B1 PL 117356B1
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PL
Poland
Prior art keywords
dowel
fastening screw
pin
ellipse
slots
Prior art date
Application number
PL1978210743A
Other languages
Polish (pl)
Other versions
PL210743A1 (en
Inventor
Artur Fischer
Original Assignee
Artur Fischer
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Artur Fischer filed Critical Artur Fischer
Publication of PL210743A1 publication Critical patent/PL210743A1/en
Publication of PL117356B1 publication Critical patent/PL117356B1/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B13/00Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/02Dowels 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)
  • Joining Of Building Structures In Genera (AREA)
  • Prostheses (AREA)
  • Taps Or Cocks (AREA)

Description

Przedmiotem wynalazku jest kolek z dwiema przeciwleglyimi, przebiegajacymi w kieroniku osio¬ wym i zanikajacymi po obu koncach kolka szcze¬ linami oraz -z dwoma zetonami, przy czym kazde zebro biegnie wzdluz jednej, ze szczelin, z prze¬ chodzacym 'wzdluznie' przez srodek kolka otwo¬ rem o srednicy, odpowiadajacej w przyblizeniu srednicy rdzenia przewidzianej do wkrecania w koleik sruiby mocujacej.Z opisu patentowego RFN DT-AS l 6215 336 zna¬ ny jest koleik, iktórego srednica zewnetrzna odpo¬ wiada srednicy sruiby mocujacej. Umocowanie przedmiotu iza pomoca takiego kolka umozliwia montaz przelotowy,, przy którym srednica wywier¬ conego otwonu, przechodzacego przez element bu¬ dowlany i przez sciane, odpowiada srednicy sru¬ by mocujacej, i kolka. W Itwardym murze zage¬ szcza sie, wskutek tego i zaklinowuje material kol¬ ka miedzy zwojami gwintu sruiby mocujacej z ijed¬ nej strony i scianka wywierconego otworu z dru¬ giej, wywolujac szczególnie diuze sily /trzymajace.Dzieki szczelinom zmniejsza sie opór przy wkre¬ caniu sruby (mocujacej!, powieksza sie zas mozli¬ wosc roztloczenda srodkowej czesci kolka, co umoz¬ liwia takie jego zakotwienie w miekszych ma¬ terialach budowlanych, które opiera sie nawet znacznym siiom wyciagajacym. Zebra, które daja moznosc wtloczenia kolka, wzglednie jego przy¬ warcia do wywierconego otworu, nie dopuszczaja, 10 1S 20 30 by przy wkrecaniu sruby mocujacej' kolek sie w otworze obrócil.•W przypadku wywiercenia otworów mniejszych, na przyklad wskutek zuzytego narzedzia, wyste¬ puja trudnosci z umieszczeniem kolka razem z nieznacznie odkrecona sruba mocujaca w otwo¬ rze ze wzgliedu na wzmozone na calej powierzchni tarcie, powiekszane idodatkowoi przez zelbra. Je¬ zeli srednice otworów sa wieksze, powstaje nie¬ bezpieczenstwo, ze przy wkrecaniu sruiby mocuja¬ cej kolek zacznie sie w otworze oibracac. W tych wypadkach zabezpieczenie kolka przed obracaniem sie zalezy od tego, czy (dzieki zebrom kolek zosta¬ nie skutecznie rozparty w wywierconym otworze.Montaz i 'zakotwienie znanego kolka jest wiec zwiazane rz bardzo zaciesnionymi tolerancjami.Celem wynalazku jest rozluznienie tolerancji wywiercanych otworów na tyla aby dawaly moz¬ liwosc montazu i zakotwienia zgodnie z przepisa¬ mi.Cel ten wedlug wynalazku uzyskuje sie w ten sposób, ze kolek ma eliptyczny profil zewnetrzny, przy czym wielka os elipsy jest nieco wieksza od wkrecanego- w kolek odcinka sruby mocujacej, zas os miala elipsy równa ternu odcinkowi lub mniejsza od; niego, zas szczeliny i zebra znajduja sie po stronach malej osi elipsy.Tak uksztaltowany koleik jest spllaszczony po stronach,, gdziie znajduja sie zebrai,, wskutek czego zostaja one przy wbijaniu (kolka wtlaczane w 117 3563 scianke otworu przy znacznie zmniejszonym tar¬ ciu. Dzieki eliptycznemu ksztaltowi zewnetrznego profiln kolka zmniejsza sie grubosc jego scianki w tym zakresie, a tym samym zwiekszanej spre¬ zystosc,, ulatwiajaca wygiecie sie; scianki kotka ku srodkowi. Ta sprezystosc, zwiekszona dodatkowo przez szczeliny, daje moznosc znacznie latwiej¬ szego wcisniecia nawet wiekszej osi elipsy w cia- sniejsza srednice otworu. Nierówna grulbosc scian¬ ki kolka nie pogarsza jednak wartosci zakotwie¬ nia^ 'poniewaz caly material kolka zostaje, dzieki stosunkowi osi, równomiernie rozdzielony i zakli¬ nowany w wywierconym otworze ,pod dzialaniem zwojów gwintu sruby mocujacej.¦W otworach wiekszych powstaje, wskutek elip¬ tycznego ksztaltu kolka, oprócz styku ciernego zeber, dodatkowo styk cierny w zakresie wielkiej osi elipsy. Wskutek zwiekszonego tarcia zmniej¬ sza sie znacznie niebezpieczenstwo, ze w wywier¬ conych otworach o wdekszyim przekroju kolek zacznie sie obracac razem iz Wkrecana snulba.Ksztalt kolka wedlug wynalazku zwieksza tym samym zakres tolerancji* w ramach której jest mozflliwy montaz i zakotwienie kolka bez zmniej¬ szania jego sily trzymajacej.Korzystnie, stosunek miedzy wielka i mala osia ellipsy wynosi 1:0,94 do 0,96.(Przedmiot wynalazku uwidoczniony jest w przy¬ kladzie wykonania na ryisunku, na którym fig. 1 przedjstawJa kolek w przekroju czastkowym z wkrecona sruba mocujacaj, fig. 2 — widok czo¬ lowy kolka wedlug fig. 1.Zakotwienie kolka 1 wymaga, by w scianie oraz w elemencie budowlanymi, który ma byc umocowany, zostal wywiercony otwór o srednicy, odpowiadajacej w przyblizeniu srednicy ze¬ wnetrznej sruby mocujacej 2. W przedluzeniu na¬ gwintowanego odcinka 3 strulby mocujace} Z, odpo¬ wiadajacego mniej, wiecej dlugosci kolka, ciagnie sie do lba 4 snujby trzpien iuie nagwintowany 5, którego dlugosc równa sie najkorzystniej niezbed¬ nej do zakotwienia kolka 1 glebokosci wkrecania, 356 4 a itym isamym równiez w przyblizeniiu dlugosci kolka. Alby kolek tworzyl ze sruba zwarta calosc, koniec 6 sruby, mocujacej 2 zostaje wkrecony w stozkowe rozszerzenie 7 kolka 1.Oprócz szczelin 8 (zabezpieczaja kolek przed cJbracaniiem sie w otworze przebiegajace wzdluznie przy krawedziach (szczelin zebra 9 o profilu trój¬ katnym, który usiztywnia kolek w kierunku obro¬ tu, jednoczesnie zas przy zakotwieniu w twardym 10 materiale lafrwo lamie sie i wciska w szczeliny.Szczeliny 8 zanikajace przy obu koncach, umozli¬ wiaja rozparcie kolka w murze miekkimi i po¬ wiekszaja sile trzymajaca. fW przedstawionym na fig. 2 kolku o ksztalcie 15 eliptycznym jego profilu zewnetrznego powstaje róznica w grubosci scianki, wynoszaca przy wy¬ maganym stosunku miedzy wielka i mala osia elipsy i wymiainze kolka 6 mm okolo 0,15 mm.Ksztalt eliptyczny ulatwia wkladanie kolka w 20 wywiercone otwory o zbyt malej srednicy z jed¬ nej strony, z drugiej zas zwieksza zabezpieczenie kolka przed obracaniem sie w otworach wiek¬ szych.(Zastrzezenia patentowe 26 1. Kolek z dwiema przeciwleglymi, przebiegaja¬ cymi w kierunku osiowym i zanikajacymi przy obu koncach kolka szczelinami oraz z dwoma zebrami, biegnacymi wzdluz szczelin, z przechodza- 30 cym wzdluznie przez srodek kolka otworem o srednicy, odpowiadajacej w przyblizeniu sred¬ nicy rdzenia sruby mocujacej przewidzianej do wkrecenia w kolek, znamienny tym, ze ma profil zewnetrzny w iksztaleie elipsy, której os wielka 35i jest nieco wieksza od wkrecanego w kolek odcin¬ ka sroby mocujacej, zas os mala jest równa temu odcinkowi lub mniejsza od niego, przy czym szcze¬ liny i zebra znajduja sie od strony malej osi eli¬ psy.M B. Kolek wedlug zastrz, 1, znamienny tym, ze stosunek miedzy wielka i mala osia elipsy wynosi od 1:0,94 do 0,96.117 356 FIG. 1 ifr^ /n- ! u, 1 t^-7 4 6 r"9 il_-8 FIC. 2 PL PL PL PL PL PL PL The subject of the invention is a wheel with two opposite slots running in the axial direction and disappearing at both ends of the wheel, and with two ribs, each rib running along one of the slots, with the wheel passing 'longitudinally' through the center of the wheel. a hole with a diameter approximately corresponding to the diameter of the core intended for screwing the fastening screw into the rail. From the German patent description DT-AS l 6215 336 there is known a rail whose external diameter corresponds to the diameter of the fastening screw. Fixing the object with such a dowel allows for pass-through installation, where the diameter of the drilled hole passing through the building element and the wall corresponds to the diameter of the fastening screw and dowel. In a hard wall, the dowel material compacts and wedges between the threads of the fastening screw on one side and the wall of the drilled hole on the other, generating particularly high holding forces. Thanks to the slots, the resistance when screwing in is reduced. tightening the screw (fastening!), and the possibility of expanding the central part of the dowel increases, which enables its anchoring in softer building materials, which resists even significant pulling forces. Ribs that make it possible to press the dowel in, relative to its ¬ connections to the drilled hole, prevent the dowel from turning in the hole when screwing in the fastening screw. • In case of drilling smaller holes, for example due to a worn tool, it is difficult to place the dowel together with a slightly unscrewed screw fastening in the hole due to the increased friction over the entire surface, which is additionally increased by the ribs. If the diameters of the holes are larger, there is a risk that when the fastening screw is screwed in, the pin will start to rotate in the hole. In these cases, the protection of the dowel against rotation depends on whether it is effectively supported in the drilled hole thanks to the dowel ribs. The assembly and anchoring of the known dowel is therefore associated with very tight tolerances. The aim of the invention is to loosen the tolerances of the drilled holes at the back so that made it possible to assemble and anchor in accordance with the regulations. According to the invention, this goal is achieved by the fact that the dowel has an elliptical external profile, with the major axis of the ellipse being slightly larger than the section of the fastening screw screwed into the dowel, and the axis had ellipse equal to this segment or smaller than it, and the slots and ribs are located on the sides of the minor axis of the ellipse. The rail shaped in this way is flattened on the sides where the ribs are located, as a result of which they remain during driving (pins pressed into the wall hole with significantly reduced friction. Thanks to the elliptical shape of the external profile of the pin, its wall thickness is reduced in this respect, and thus its elasticity is increased, making it easier to bend; the walls of the cat towards the center. This elasticity, additionally increased by the slots, makes it much easier to squeeze even a larger axis of the ellipse into a narrower hole diameter. However, the uneven wall thickness of the dowel does not impair the anchoring value because the entire material of the dowel is, thanks to the axis ratio, evenly distributed and wedged in the drilled hole by the action of the threads of the fastening screw. In larger holes it is formed due to elliptical ¬ tical shape of the pin, in addition to the friction contact of the ribs, additionally friction contact within the major axis of the ellipse. Due to the increased friction, the risk that in drilled holes with a larger cross-section the dowels will start to rotate together with the screwed-in splint is significantly reduced. The shape of the dowel according to the invention thus increases the tolerance range* within which it is possible to assemble and anchor the dowel without any reduction. reduction of its holding force. Preferably, the ratio between the major and minor axes of the ellipse is 1:0.94 to 0.96. (The subject of the invention is shown in an embodiment in the drawing, in which Fig. 1 shows a pin in a partial section with a screwed fastening screw, Fig. 2 - front view of the dowel according to Fig. 1. Anchoring the dowel 1 requires that a hole be drilled in the wall and in the building element to be fastened with a diameter approximately corresponding to the outer diameter of the fastening screw. 2. In the extension of the threaded section 3, the fastening struts Z, corresponding to more or less the length of the dowel, extends to the head 4 to form a threaded pin 5, the length of which preferably equals the screw-in depth necessary to anchor the dowel 1, 356 4 and the same is also approximately the length of the dowel. In order for the pin to form a compact whole with the screw, the end 6 of the fastening screw 2 is screwed into the conical extension 7 of the pin 1. In addition to the slots 8 (which prevent the pin from rotating in the hole, there are slots running along the edges of the pin 9, which stiffen the dowel in the direction of rotation, and at the same time, when anchored in a hard material, the pin breaks and presses into the slots. The slots 8 disappearing at both ends make it possible to expand the dowel in the wall with soft materials and increase the holding force. f In the case shown in Fig. 2 of the elliptical shape of its external profile, a difference in wall thickness is created, amounting to approximately 0.15 mm with the required ratio between the major and minor axis of the ellipse and the pin exchange of 6 mm. The elliptical shape makes it easier to insert the pin into drilled holes of too small a size. diameter on the one hand, and on the other hand, it increases the protection of the pin against rotation in larger holes. (Patent claims 26 1. A pin with two opposite slots running in the axial direction and disappearing at both ends of the pin and with two ribs , running along the slots, with a hole passing longitudinally through the center of the dowel, with a diameter approximately corresponding to the diameter of the core of the fastening screw intended for screwing into the dowel, characterized in that it has an external profile in the shape of an ellipse, the major axis of which 35i is slightly larger than the section of the fastening screw screwed into the pin, and the minor axis is equal to this section or smaller than it, with the slots and the rib being located on the side of the minor axis of the pin. M B. The pin according to claim 1, characterized in that the ratio between the major and minor axes of the ellipse is from 1:0.94 to 0.96.117 356 FIG. 1 ifr^ /n- ! u, 1 t^-7 4 6 r"9 il_-8 FIC. 2 PL PL PL PL PL PL PL

Claims (1)

Zastrzezenia patentowe 26Patent claims 26 1. Kolek z dwiema przeciwleglymi, przebiegaja¬ cymi w kierunku osiowym i zanikajacymi przy obu koncach kolka szczelinami oraz z dwoma zebrami, biegnacymi wzdluz szczelin, z przechodza- 30 cym wzdluznie przez srodek kolka otworem o srednicy, odpowiadajacej w przyblizeniu sred¬ nicy rdzenia sruby mocujacej przewidzianej do wkrecenia w kolek, znamienny tym, ze ma profil zewnetrzny w iksztaleie elipsy, której os wielka 35i jest nieco wieksza od wkrecanego w kolek odcin¬ ka sroby mocujacej, zas os mala jest równa temu odcinkowi lub mniejsza od niego, przy czym szcze¬ liny i zebra znajduja sie od strony malej osi eli¬ psy. M B. Kolek wedlug zastrz, 1, znamienny tym, ze stosunek miedzy wielka i mala osia elipsy wynosi od 1:0,94 do 0,96.117 356 FIG. 1 ifr^ /n- ! u, 1 t^-7 4 6 r"9 il_-8 FIC. 21. A dowel with two opposite slots running in the axial direction and disappearing at both ends of the dowel, and with two ribs running along the slots, with a hole passing longitudinally through the center of the dowel with a diameter approximately corresponding to the diameter of the screw core fastening screw intended to be screwed into the stud, characterized in that it has an external profile in the shape of an ellipse, the major axis of which 35i is slightly larger than the section of the fastening screw screwed into the stud, and the minor axis is equal to this section or smaller than it, and especially ¬ ropes and zebra are located on the side of the minor axis of the eli¬ dog. M B. Circle according to claim 1, characterized in that the ratio between the major and minor axes of the ellipse is from 1:0.94 to 0.96.117 356 FIG. 1 ifr^ /n- ! u, 1 t^-7 4 6 r"9 il_-8 FIC. 2
PL1978210743A 1977-11-08 1978-11-06 Peg PL117356B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772749837 DE2749837A1 (en) 1977-11-08 1977-11-08 DUEBEL

Publications (2)

Publication Number Publication Date
PL210743A1 PL210743A1 (en) 1979-09-24
PL117356B1 true PL117356B1 (en) 1981-07-31

Family

ID=6023237

Family Applications (1)

Application Number Title Priority Date Filing Date
PL1978210743A PL117356B1 (en) 1977-11-08 1978-11-06 Peg

Country Status (25)

Country Link
JP (1) JPS5474181A (en)
AR (1) AR215762A1 (en)
AU (1) AU509832B2 (en)
BE (1) BE871839A (en)
BR (1) BR7807320A (en)
CH (1) CH632812A5 (en)
CS (1) CS204039B2 (en)
DD (1) DD139744A5 (en)
DE (1) DE2749837A1 (en)
DK (1) DK480478A (en)
ES (1) ES239127Y (en)
FI (1) FI783409A (en)
FR (1) FR2408058A1 (en)
GB (1) GB2007323B (en)
GR (1) GR63563B (en)
HU (1) HU174729B (en)
IL (1) IL55878A0 (en)
IT (1) IT1192284B (en)
NL (1) NL7810466A (en)
NO (1) NO144649C (en)
PL (1) PL117356B1 (en)
PT (1) PT68762A (en)
SE (1) SE426730B (en)
YU (1) YU259178A (en)
ZA (1) ZA786252B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5888215A (en) * 1981-11-17 1983-05-26 松下電工株式会社 Nut cylinder for expansion bolt
GB2139307B (en) * 1983-05-06 1986-11-26 Pandrol Ltd Fastening rail-supporting members to railway sleepers
DE3621831A1 (en) * 1986-06-28 1988-01-14 Fischer Artur Werke Gmbh SPREADING DOWEL

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE195091C (en) *
NL13388C (en) * 1900-01-01
GB1247193A (en) * 1968-09-06 1971-09-22 Rawlplug Co Ltd Improvements in wall plugs
FR2086936A5 (en) * 1970-04-14 1971-12-31 Bolivia Ets
DE2255598A1 (en) * 1972-11-13 1974-05-16 Peter Trieb DOWEL
DE2314520A1 (en) * 1973-03-23 1974-10-03 Albert Berner EXPANSION DOWEL
IT1051518B (en) * 1975-12-19 1981-05-20 Allfix Italy Spa WALL DOWEL

Also Published As

Publication number Publication date
DK480478A (en) 1979-05-09
BE871839A (en) 1979-03-01
BR7807320A (en) 1979-07-24
ES239127Y (en) 1979-06-16
SE7811103L (en) 1979-05-09
YU259178A (en) 1982-06-30
PL210743A1 (en) 1979-09-24
IT1192284B (en) 1988-03-31
NL7810466A (en) 1979-05-10
GB2007323B (en) 1982-03-10
HU174729B (en) 1980-03-28
NO144649C (en) 1981-10-07
DE2749837A1 (en) 1979-05-10
DD139744A5 (en) 1980-01-16
GR63563B (en) 1979-11-17
NO783712L (en) 1979-05-09
IT7829496A0 (en) 1978-11-07
AU4123478A (en) 1979-05-17
SE426730B (en) 1983-02-07
CS204039B2 (en) 1981-03-31
FR2408058A1 (en) 1979-06-01
FI783409A (en) 1979-05-09
GB2007323A (en) 1979-05-16
AR215762A1 (en) 1979-10-31
AU509832B2 (en) 1980-05-29
NO144649B (en) 1981-06-29
IL55878A0 (en) 1979-01-31
PT68762A (en) 1978-12-01
CH632812A5 (en) 1982-10-29
FR2408058B1 (en) 1982-04-23
ZA786252B (en) 1979-10-31
ES239127U (en) 1978-12-16
JPS5474181A (en) 1979-06-14

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