HRP20010432A2

HRP20010432A2 - Anchoring screw for sleepers

Info

Publication number: HRP20010432A2
Application number: HR20010432A
Authority: HR
Inventors: Joerg Blume
Original assignee: Schraubenwerk Zerbst Gmbh
Priority date: 1998-12-23
Filing date: 2001-06-08
Publication date: 2002-06-30
Also published as: CN1132977C; BG63880B1; EP1141486A1; CZ20011911A3; HK1042125B; EP1141486B1; AU2276700A; DE59905367D1; BG105551A; CN1331770A; WO2000039399A1; DE19859696C1; ATE239137T1; HRP20010432B1; HK1042125A1; CZ294805B6

Abstract

Disclosed is an anchoring screw for systems that secure rails. The rails are mounted using extended screw heads on a stable substructure such as concrete sleepers or concrete carriage-ways. According to the invention, the novel anchoring screw has four basic features: i.e. a shortened rail screw thread (1) that corresponds to approximately one third of the entire length of the screw; a shank section without a thread (3) and which is joined to the head of the screw (2), whereby the diameter thereof matches the external diameter of the thread of the rail screw; a metric thread in the end region of the upper part of the shank of the anchoring screw, whereby the diameter of the upper shank section (4) is smaller than the above-mentioned upper part of the screw (1,3); a screw head (2) with a diameter that is smaller than the maximum diameter of the shank of the screw. The metric thread in the upper part (4) of the screw enables axial forces to be transmitted via suitable connector elements.

Description

Izum se odnosi na sidreni vijak za pragove i slično za pričvršćenje kolosijeka. The invention relates to an anchor bolt for sleepers and the like for attaching the track.

Pri tome se tračnice pomoću dugačkog tijela vijka montiraju na stabilan donji stroj, primjerice betonske pragove ili betonske kolnike. In this case, the rails are mounted on a stable lower machine, for example concrete sleepers or concrete pavements, using the long body of the screw.

Za fiksiranje kolosijeka koji se sastoji od tračnica i pragova, na čvrsti nosivi sloj iz primjerice betona ili asfalta, poznata su različita vijčana pričvršćenja. Glavnu funkciji kod takovih vijčanih pričvršćenja preuzima sidreni vijak, od kojeg su poznati različiti oblici izvedbe (DE 33 24 225 C2, DE 39 09 826 A1, DE 41 13 381 A1, DE 44 08 986 A1). Various screw fastenings are known for fixing the track, which consists of rails and sleepers, to a solid bearing layer made of, for example, concrete or asphalt. The main function of such screw fastenings is taken over by the anchor screw, of which different versions are known (DE 33 24 225 C2, DE 39 09 826 A1, DE 41 13 381 A1, DE 44 08 986 A1).

U DE 33 24 225 C2 opisuje se smještaj pričvršćenja za tračnice na pragove, kod kojeg vijak ima cilindrično tijelo s dugačkim navojem za usidrenje u pragu. DE 33 24 225 C2 describes the placement of rail fasteners on sleepers, where the bolt has a cylindrical body with a long thread for anchoring in the sleeper.

Predmet DE 39 09 826 A1 je klasičan vijak za drvene pragove s modificiranim dvovojnim navojem. Takvi vijci za pragove imaju dugi navoj, koji u gornjem dijelu vijka prelazi u cilindrično tijelo vijka bez navoja. Item DE 39 09 826 A1 is a classic screw for wooden sleepers with a modified double thread. Such threshold screws have a long thread, which in the upper part of the screw passes into the cylindrical body of the screw without a thread.

Iz DE 44 08 986 A1 poznato je pričvršćenje kolosijeka na čvrsti nosivi sloj, kod kojeg se cilindrični vijci s metričkim navojem umeću u krajnje područje tijela vijka u steznoj napravi. From DE 44 08 986 A1 it is known to attach the track to a solid bearing layer, in which cylindrical screws with a metric thread are inserted into the end area of the screw body in the clamping device.

Usidrenje prema DE 41 13 381 A1 također služi za pričvršćenje dugog tijela s navojem u materijale kao što je beton i sl. Ti vijci imaju dugi navoj, koji završava u konus s navojem. Gornji dio tijela vijka izveden je bez navoja. The anchoring according to DE 41 13 381 A1 is also used to fasten a long threaded body in materials such as concrete, etc. These screws have a long thread, which ends in a threaded cone. The upper part of the screw body is made without threads.

Čvrstoća usidrenja vijka u provrtu postiže se tako, da se na navoje natakne žičana spirala. The anchoring strength of the screw in the hole is achieved by putting a wire spiral on the threads.

Kod sidrenih vijaka za pragove i sl. uobičajena je glava vijka koja strši izvan promjera tijela vijka i služi za prijenos aksijalnih sila. In the case of anchor bolts for thresholds, etc., a bolt head that protrudes beyond the diameter of the bolt body and serves to transmit axial forces is common.

Zadatak izuma je, da se uz što manji trošak postigne velika sigurnost pričvršćenja. The task of the invention is to achieve high security of attachment with as little expense as possible.

Taj zadatak rješava se ovim izumom s obilježjima glavnog zahtjeva, a podzahtjevi pokazuju daljnje povoljne izvedbe izuma. This task is solved by this invention with the features of the main claim, and the sub-claims show further advantageous embodiments of the invention.

Prema koncepciji izuma, novi sidreni vijak ima četiri slijedeća osnovna obilježja: According to the concept of the invention, the new anchor screw has the following four basic characteristics:

• skraćeni navoj vijka za pragove, koji čini samo trećinu ukupne duljine vijka, • shortened thread of the screw for the thresholds, which makes up only a third of the total length of the screw,

• na ovaj dio se, prema glavi vijka, nastavlja dio tijela vijka bez navoja s promjerom koji odgovara vanjskom promjeru navoja vijka za pragove, • on this part, towards the head of the screw, a part of the body of the screw without thread continues with a diameter corresponding to the outer diameter of the thread of the threshold screw,

• metrički navoj na kraju gornjeg dijela tijela sidrenog vijka s promjerom tog gornjeg dijela tijela vijka, koji je nešto manji od gore opisanog donjeg dijela vijka, • metric thread at the end of the upper part of the body of the anchor bolt with the diameter of that upper part of the bolt body, which is slightly smaller than the lower part of the bolt described above,

• glava vijka s promjerom koji je manji od najvećeg promjera tijela vijka. • a screw head with a diameter that is smaller than the largest diameter of the screw body.

Duljina dijela vijka s metričkim navojem koji obuhvaća glavu vijka i završetak tijela, iznosi oko trećinu cjelokupne duljine vijka. The length of the part of the screw with a metric thread, which includes the head of the screw and the end of the body, is about a third of the entire length of the screw.

Pomoću metričkog navoja u gornjem dijelu vijka i prikladnih spojnih elemenata prenose se aksijalne sile. Axial forces are transmitted by means of a metric thread in the upper part of the screw and suitable connecting elements.

Dio tijela sidrenog vijka koji je bez navoja i koji se nastavlja na skraćeni navoj vijka za pragove prilikom montaže vijka barem djelomično se umeće u provrt betonskih kolnika, betonskih pragova itd. Na taj način to područje tijela vijka preuzima veliki dio poprečnih sila koje se pojavljuju. The part of the body of the anchor bolt that is unthreaded and which continues to the shortened thread of the sleeper bolt during the installation of the bolt is at least partially inserted into the bore of concrete pavements, concrete sleepers, etc. In this way, this area of the bolt body takes over a large part of the transverse forces that occur.

U daljnjem tekstu dat je opis jednog primjera izvedbe pomoću slijedećih crteža: In the following text, a description of one example of performance is given using the following drawings:

Slika 1 prikazuje bokocrt, odnosno cjelokupni pogled na sidreni vijak prema izumu, Figure 1 shows a side view, i.e. an overall view of the anchor screw according to the invention,

Slika 2 prikazuje pogled na glavu vijka i Figure 2 shows a view of the screw head and

Slika 3 prikazuje karakteristični profil navoja vijka za pragove. Figure 3 shows the characteristic thread profile of the sill bolt.

Kod primjera izvedbe koji je opisan i prikazan na slikama 1 i 2, novi sidreni vijak ima ukupnu duljinu od 258 + 5 mm. In the design example described and shown in Figures 1 and 2, the new anchor bolt has a total length of 258 + 5 mm.

Ona se, na slici 1 promatrano slijeva udesno, raščlanjuje na slijedeće dijelove: Viewed from left to right in Figure 1, it is broken down into the following parts:

• glavu vijka 2 koja ne strši izvan promjera tijela, s promjerom ključa glave od 17 – 0,8 mm; • screw head 2 that does not protrude beyond the diameter of the body, with a head spanner diameter of 17 – 0.8 mm;

• dio 4 s metričkim navojem M22 koji se nastavlja na glavu vijka 2, pri čemu glava vijka 2 i dio tijela 4 zajedno imaju duljinu od 80 + 5 mm; • part 4 with a metric thread M22 that continues to the head of the screw 2, whereby the head of the screw 2 and the body part 4 together have a length of 80 + 5 mm;

• dva dijela tijela, pri čemu dio 4.1 ima vanjski promjer 22 + 0,84 mm dijela 4, a dio 3 ima vanjski promjer 24 + 0,84 mm dijela tijela sa navojem vijka za pragove 1. Dijelovi 4.1 i 3 imaju ukupnu duljinu l = 95 mm, od čega duljina z dijela 3 iznosi 40 – 5 mm; • two body parts, where part 4.1 has an outer diameter of 22 + 0.84 mm of part 4, and part 3 has an outer diameter of 24 + 0.84 mm of the body part with the screw thread for the frets 1. Parts 4.1 and 3 have a total length of l = 95 mm, of which the length z of part 3 is 40 – 5 mm;

• dio tijela vijka s navojem vijka za pragove 1 duljine 83 + 5 mm. • part of the screw body with screw thread for thresholds 1 length 83 + 5 mm.

Unutarnji promjer navoja vijka za pragove 1 iznosi 16 + 0,5 mm. The inner diameter of the thread of the screw for the thresholds 1 is 16 + 0.5 mm.

Iz slike 3, povećanog prikaza detalja X sa slike 1 profila navoja vijka za pragove, razvidni su kutevi α ≈ 50o, β ≈ 45o, γ ≈ 5o. Korak γ između dva navoja iznosi oko 12,5 mm. From Fig. 3, an enlarged view of detail X from Fig. 1 of the thread profile of the threshold screw, the angles α ≈ 50o, β ≈ 45o, γ ≈ 5o can be seen. The step γ between the two threads is about 12.5 mm.

POPIS POZIVNIH OZNAKA NA SLIKAMA LIST OF CALL SIGNS IN PICTURES

1 Navoj vijka za pragove 1 Threshold bolt thread

2 Glava vijka 2 Screw head

3 Dio tijela vijka bez navoja 3 Part of the bolt body without thread

4 Dio tijela navoja s metričkim navojem 4 Thread body part with metric thread

4.1 Dio tijela vijka s jednakim vanjskim promjerom bez navoja 4.1 Part of the bolt body with equal outer diameter without thread

Claims

1. Anchor screw for thresholds and the like for attaching rails, i.e. tracks on a stable lower machine, for example made of concrete or asphalt, characterized by the fact that the screw in the axial direction has the following four parts: a) a shortened part (1) with a thread for thresholds, the length of which is about a third of the entire length of the screw, b) part (3) of the body without a thread that continues towards the head of the screw (2), whereby the diameter of that part (3) of the body corresponds to the outer diameter of the thread of the part (1) of the screw for the thresholds, c) part (4) with a metric thread in the uppermost part of the screw body, whereby the diameter of that part (4) of the screw body is slightly smaller than the diameter of the lower part of the screw body according to a) and b), d) screw head (2).

2. Anchor screw according to patent claim 1, characterized in that the length of the screw head (2) and the length of the part (4) of the body with a metric thread is about a third of the entire length of the screw.

3. Anchor screw according to claims 1 or 2, characterized in that the diameter of the screw head (2) is smaller than the largest diameter of the screw body.

4. Anchor screw according to one of patent claims 1 to 3, characterized in that with a total screw length of 258 mm • the length of the part (1) with the screw thread for the sills is about 83+ 5 mm • the length of part (3) of body z without thread is about 40 – 5 mm, a • the length of the part (4) of the screw body with a metric thread together with the screw head (2) is about 80 + 5 mm, where the screw head (2) has a length of about 20 mm.

5. Anchor screw according to one of patent claims 1 to 4, characterized in that the screw has the following diameters in individual parts • part (1) with screw thread for thresholds: inner diameter = 16 + 0.5 mm outer diameter = 24 + 0.5 mm • part (3) z without thread: 24 + 0.84 mm • body part between part (3) z without thread and screw head (2): 22 + 0.84 mm, on which there is part (4) with metric thread M22, • the screw head (2) has a key opening of 17 – 0.8 mm.

6. Anchor screw according to one of patent claims 1 to 5, characterized in that the screw thread for the sleepers (1) has • distance γ between two threads, which is about 12.5 mm. • angles of the longitudinal section of the coil α ≈ 50o β ≈ 45o γ ≈ 5o.