EP1818452A1 - Système de fixation de rails, vis et vis-cheville pour ce système - Google Patents
Système de fixation de rails, vis et vis-cheville pour ce système Download PDFInfo
- Publication number
- EP1818452A1 EP1818452A1 EP06027127A EP06027127A EP1818452A1 EP 1818452 A1 EP1818452 A1 EP 1818452A1 EP 06027127 A EP06027127 A EP 06027127A EP 06027127 A EP06027127 A EP 06027127A EP 1818452 A1 EP1818452 A1 EP 1818452A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- screw
- thread
- anchor
- internal thread
- plug
- Prior art date
- Legal status (The legal status 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 status listed.)
- Withdrawn
Links
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B9/00—Fastening rails on sleepers, or the like
- E01B9/02—Fastening rails, tie-plates, or chairs directly on sleepers or foundations; Means therefor
- E01B9/04—Fastening on wooden or concrete sleepers or on masonry without clamp members
- E01B9/14—Plugs, sleeves, thread linings, or other inserts for holes in sleepers
- E01B9/18—Plugs, sleeves, thread linings, or other inserts for holes in sleepers for concrete sleepers
Definitions
- the invention relates to a rail fastening comprising a screwed into a concrete element such as a concrete sleeper consisting of plastic screw plugs and screwed into this screw, wherein the screw plug at least in its lower region has an internal thread and an external thread and the internal thread has a shape that on the External thread of the screw is at least partially adaptable.
- the invention relates to a screw plug for screwing and unscrewing in a concrete element such as a concrete sleeper in the superstructure, wherein the screw plug at least in its lower region has an internal thread and an external thread and the internal thread to external thread of a screwable screw is at least partially adaptable a rail is fastened.
- the invention relates to a screw for screwing in a screwed into a concrete element such as concrete sleeper and screw-out for fixing a rail.
- a Kunststoffschraubdübel for attaching a rail on a threshold is from the EP-B-0 785 308 known.
- the dowel body to the external thread of the sleeper screw adapted form of substantially uniform Has wall thickness which is dimensioned so that the outer diameter of the plug is at least 1.05 times and at most 1.2 times the dowel inner diameter.
- the sleeper screw has a rounded external thread to prevent destruction of the anchor.
- the dowel secure fastening of the screw in the threshold to be made possible at the same time should be an electrical insulation of the sleeper screw against the threshold, as well as the GB-A-865.120 provides.
- the ratio of inner to outer diameter is about 1.33.
- a disadvantage of the known Dübelschraubenan isten for securing a rail on a slab or concrete sleeper is that due to the uniform wall thickness of the dowel stress concentration in the dome area of the internal thread of the dowel takes place, so that with multiple screwing in and out of the screw destruction of the dowel can occur. It is also disadvantageous that the thread shape of the screws used is similar to a wood screw, the same if the edges are rounded.
- the DE-A-10 24 993 refers to an attachment for rails and backing plates on concrete sleepers, which provides a dowel, the internal thread is offset relative to the external thread in the axial direction upwards so that over the supporting thread flanks of the sleeper screws more material is present, as below the non-supporting thread flanks.
- Subject of the DE-C-198 59 696 is a screw with rounded caps.
- a dowel screw assembly is in the DE-A-35 03 139 described in which the dowel includes a non-supporting upper area. Furthermore, it is provided that a packer is introduced between the dowel and screw, which fills the gap between the screw shaft and dowel sleeve and seals to compensate for tolerances in the screw.
- An anchor with sections of right and left hand thread is from the DE-C-5 34 990 known.
- a dowel after the FR-A-1 484 186 has a thread with symmetrical flanks, which have the same wall thicknesses throughout.
- a rail nail after the US-A-1 048 590 is slotted and has a thread that has a trapezoid geometry.
- the GB-A-865 120 refers to a rail mounting with one of a rubber overmolded screw refers.
- the sleeve surrounding the screw in the non-screwed state has a substantially uniform thickness.
- the present invention is based on the object, a rail fastening and a screw plug and a screw for this educate such that a uniform load distribution with tightened screw, in particular to avoid load peaks in the dowel.
- a broad area concerns the screw flanks on the force-transmitting Flankenwandung the anchor should be made possible, at the same time cavities between dowels and screw to be minimized to reduce the accumulation of water and thus the formation of frost in frost.
- the possibility should be created, because the beginning of the load entry of the screw in the concrete element to move it as deeply as possible.
- the object is achieved by a rail fastening of the type mentioned above essentially in that both the thread of the screw and the internal thread of the screw anchor are trapezoidal in that the flank angle ⁇ s of the thread of the screw is 80 ° ⁇ ⁇ s ⁇ 100 °, in that the wall of the screw anchor varies in such a way that the force-transmitting first flank wall has a thickness D w and the adjacent second flank wall has a thickness d w with D w ⁇ 1.5 • d w , wherein the screw plug outer diameter D Da is the screw plug inner diameter D Di behaves like D Da : D Di ⁇ 1.25: 1.
- flanks of the screws are on the force-transmitting flanks of the anchor over a larger compared to a wood screw thread area, so that the formation of cavities in the anchor is greatly reduced. Due to the trapezoid geometry, when the screw is tightened, the distance between the screw surface and the dowel inner surface in the areas which do not transmit force is the same or substantially the same.
- the reinforced walls of the force-transmitting regions of the dowel permit targeted flow of the plastic material in order to achieve a uniform distribution of stress over the entire force-transmitting surface. Stress concentrations in the anchorage of the internal thread are avoided. This is reinforced in particular by the fact that the flank surfaces of the force-transmitting flank walls of the internal thread of the screw dowel diverge in the direction of the valley of the internal thread and enclose an angle between 6 ° and 10 °, preferably in about 8 °.
- the mutually facing flanks of screw thread and internal thread of the screw plug include an angle ⁇ with 1 ° ⁇ ⁇ ⁇ 3 °, in particular ⁇ ⁇ 3 °, starting from the valley of the internal thread.
- a parallel displacement of the inner contour of the dowel in the lower threads is such that the wall thickness increases from thread to thread, so that consequently with screwed, but not yet under tension screw essentially a touch only in the last thread he follows.
- the targeted flow of the plastic material of the dowel then results in a flat concern of the screw on all force-transmitting edges of the dowel.
- the load entry which initially takes place in the lower area of the plug, leads to the risk of the concrete element being damaged, as is the concrete sleeper, being minimized or excluded.
- the relevant construction causes a non-tensioned screw essentially a punctiform contact between the screw flank and the force-transmitting edge of the anchor.
- flank angle ⁇ Di of the internal thread of the screw plug is 95 ° ⁇ ⁇ Di ⁇ 90 °, in particular ⁇ Di ⁇ 92 °.
- the flank angle ⁇ DA of the external thread of the screw plug should in this case be 82 ° ⁇ ⁇ DA ⁇ 86 °, in particular ⁇ DA ⁇ 84 °.
- the screw plug outer diameter D Da should behave like the screw plug inner diameter D Di such as 1.30: 1 ⁇ D Da : D Di ⁇ 1.27: 1.
- the maximum wall thickness change ⁇ D between the upper and lower regions of the thread of the screw anchor should be ⁇ 0.25 mm, in particular not more than 0.2 mm. It is provided in particular that a change in wall thickness of the force-transmitting flank wall of the dowel from inner dome to outer dome is not carried out over all threads, but only in the lower threads, preferably in the lower four to five threads.
- flank angle ⁇ s of the screw should be equal or approximately equal to 90 °. Accordingly, the flank angle of the internal thread of the screw anchor can be formed, provided that the wall thickness over the entire load-bearing flank are equal or substantially equal.
- the internal thread of the screw plug and / or the external thread of the screw has at least one longitudinally extending line-shaped or strip-shaped flattening or depression, such as a slot or groove.
- the thread of the screw preferably has a pitch S s of 12.0 mm ⁇ S s ⁇ 13.0 mm, in particular S s ⁇ 12.5 mm.
- the core diameter D SK should be in the range between 15 and 17 mm, preferably 16 mm.
- Aussendruchmesser D SA is preferably a range of values between 23 mm and 25 mm, in particular in the range of 24 mm indicate.
- the trapezoidal thread of the screw is further characterized in that the width B ST of the valley in the range between 2.1 and 2.5 mm, in particular about 2.3 mm and the width B SK of the dome in the range between 2.0 mm and 2.4 mm, in particular 2.2 mm. Regardless of this, the width B SK of the dome should be less than the width B ST of the valley. A deviation between 0.05 mm and 0.2 mm, preferably in the range of 0.1 mm shall be indicated.
- the distance between the valleys of the external thread of the screw anchor should be in the range of 20 mm and the distance between the studs of the internal thread of the screw plug in the range of 17 mm.
- the width B DT of the valleys of the internal thread of the screw anchor varies from the beginning of the thread to the end of the thread when the wall thicknesses vary, that is, from the crest of the internal thread increases in the direction of the valley. This change occurs increasingly when in addition there is an overall increase in wall thickness from thread to thread.
- flanks of the external thread of the screw plug With respect to the flanks of the external thread of the screw plug is to be noted that these merge without pronounced dome, so no extending along the longitudinal axis extending plateau.
- a screw plug for screwing and unscrewing in a concrete element such as a concrete sleeper in the superstructure wherein the screw plug has at least in its lower Beriech an internal thread and an external thread and the internal thread has a shape that is adapted to external thread of a screw rotatable screw on a rail is fastened, is characterized in that the internal thread of the screw plug is trapezoidal in that the flank angle ⁇ Di of the internal thread of the screw is 90 ° ⁇ ⁇ Di ⁇ 95 °, that the wall of the screw plug varies such that the force-transmitting first flank wall a Thickness D w and the adjacent second flank wall has a thickness d w with D w ⁇ 1.5 • d w , wherein the screw dowel outer diameter D Da to synchrondübel inner diameter D Di behaves like D Da : D Di ⁇ 1.25: 1.
- the screw anchor outer diameter D Da to the screw anchor inner diameter D Di behaves as 1.30: 1 ⁇ D Da : D Di ⁇ 1.27: 1.
- a targeted flow of the plastic material of the dowel to achieve a uniform distribution of stress on the force-transmitting wall can be achieved when the thickness of the force-transmitting flank wall viewed from the inner thread side decreases from the valley towards the dome.
- the wall thickness D w of the load-transmitting flank wall of the screw plug should furthermore be greater in the lower region of the thread than in the upper region, wherein preferably only some of the threads show a corresponding change in wall thickness.
- the lower four to five threads should have larger wall thicknesses than the upper threads. It can be provided that the wall thickness of the lower threads increases from thread to thread.
- the internal thread of the screw dowel has at least one extending in the longitudinal direction line or strip-shaped flattening or recess such as slot or groove
- at least the upper thread or the upper threads do not have a corresponding change in shape.
- a screw for screwing in a screwed in a concrete element such as a concrete sleeper and screw-out for attaching a rail is characterized in that the thread of the screw is trapezoidal and that the flank angle ⁇ s is 80 ° ⁇ ⁇ s ⁇ 100 °.
- flank angle ⁇ s should be equal to or approximately equal to 90 °, the flanks of the thread of the screw extending symmetrically to the longitudinal axis of the screw outgoing normal.
- the thread of the screw has at least one longitudinal flattening or recess such as slot or groove. Regardless, the thread of the screw has rounded caps.
- Preferred dimensions of the screw with respect to the pitch S S , the core diameter D SK and the outer diameter D SA are 12.0 mm ⁇ S s ⁇ 13.0 mm and 15 mm ⁇ D SK ⁇ 17 mm and 23 mm ⁇ D SA ⁇ , respectively 25 mm.
- the valleys extending to the flanks of the thread of the screw should each have a width B ST with 2.1 mm ⁇ B ST ⁇ 2.4 mm and the crests each have a width B SK with 2.1 mm ⁇ B SK ⁇ 2.3 mm have, wherein the width of the dome is smaller than that of the valley.
- the figures show a plastic dowel with a screw that can be screwed into it, by means of which a rail is fastened, in particular, on a concrete sleeper.
- a tension clamp is usually stretched over the screw, which in turn is supported on the foot of a rail for holding down this.
- the tension clamp itself can start from an angled guide plate, which is penetrated by the screw.
- the shaft 12 has a trapezoidal thread 14 with rounded tips, used.
- the pitch S s of the thread is approximately 12.5 mm.
- the flank angle ⁇ s is approximately 90 °, the flanks 16, 18 extending symmetrically to the longitudinal axis 20 of the screw 10 outgoing normal.
- An existing between the flanks 16, 18 valley 18 has a width B ST of about 2.3 mm.
- the flanks 16, 18 merge into plateaus 24, which have a width B SK of approximately 2.2 mm.
- the thread 14 is flattened in the lower threads or has groove-like recesses, which are indicated by the open ovals or circles 26, 28. In these areas, therefore, the thread 14 is partially interrupted, so that when screwing into a dowel, a pressure equalization between the individual threads can be done.
- the screw 10 is immersed in a medium such as antifreeze or anticorrosion agent before screwing into a dowel or covered with this, so that it can not be compressed when screwing into the dowel.
- the outermost thread does not have a corresponding groove or flattening so that as a result the medium remains between the threads and the dowel.
- FIGS. 5 to 13 show two embodiments of preferred anchors, which are usually cast in a concrete sleeper and into which the screw according to FIGS. 1 to 4 can be screwed or screwed out of it.
- the respective dowel not only required for the screw internal thread, but also an external thread to be unscrewed from the concrete sleeper or screwed into a concrete sleeper can.
- dowel 30 has a thread 32 with internal thread 34 and external thread 36.
- the wall of the thread 32 varies in such a way that the force-transmitting edge wall 38, 40 as the first flank wall have a greater thickness than the adjacent second wall 42, are not transmitted via the forces.
- the thickness D w of the force-transmitting wall 38, 40 to the thickness d d of the second flank wall 42 behaves in particular as 2.5 • d d ⁇ D w ⁇ 1.8 • d w .
- the inner flanks 44, 46, 48, 50 merge into one another via valleys 52 running parallel or approximately parallel to the longitudinal axis of the plug.
- the outer edges 56, 58, 60 of the external thread 36 are also spaced on the inside by valleys 62, whereas on the outside a transition takes place without a plateau-shaped dome is formed.
- the pitch S D of the external thread is approximately 12.5 mm.
- the ratio of the outer diameter D DA to the inner diameter D Di is at least 1.25: 1, but the ratio is preferably in the range between 1.30: 1 and 1.27: 1.
- the inner flank angle ⁇ Di can be approximately 92 ° and the flank angle ⁇ DA of the external thread 36 be approximately 84 °. Further, further includes the outer edge 58 of the force-transmitting wall 40 to the longitudinal axis of the dowel an angle ⁇ DA1 of about 51 °.
- angle ⁇ DA2 between the outer edge 56 of the non-transmitting Flankenwandung 42 and the longitudinal axis of the dowel 32 amounts to approximately 45 ° at a presumed outer flank angle ⁇ DA of about 84 °.
- the inner edge 46 and 50 of the force-transmitting flank wall 40 includes to the longitudinal axis of the plug 32 an angle ⁇ Di1 , which is preferably 43 °.
- inner and outer edges 46, 58 of the force-transmitting flank wall 40 form an angle ⁇ of approximately 8 °.
- the strength of the flank wall 40 increases starting from the valley 62 to the outer tip 63.
- Fig. 7 a section of the lower threads of the screw plug 30 is shown enlarged.
- the flank angle and the course of the flanks the same conditions as in the region of the upper threads of FIG. 6.
- the designated by the reference numerals 64, 66 portions of Flankenwandung over which forces are not transmitted the same wall thicknesses as the flank wall 42nd according to Fig. 6, wherein preferably a wall thickness in the range of 1 mm is to be specified.
- Inner and outer edges run parallel and close to the longitudinal axis of the dowel 30 an angle of preferably 45 °.
- the force-transmitting edge wall 68, 70 formed thicker than the wall 40.
- the inner and outer edges 72, 74 are also conical to each other and include the angle ⁇ .
- the thickness D W2 in the force-transmitting edge walls 68, 70 is greater than D W1 , with a deviation in the range of 10% can.
- the thickness D W2 may be 2 mm, whereas the wall thickness d w of the non-transmitting flank wall 40, 64, 66 amounts to approximately 1 mm.
- FIGS. 8 to 10 illustrate that between the dome 24 of the screw 10 and the valleys 52 of the internal thread 34 is formed a constant gap. When tightening the screw 10 this remains essentially because the flanks of the screw 10 on the force-transmitting inner edges 46, 50, 72, 74, 76, the internal thread 34 lie flat. As a result, only a small volume is available for receiving liquid.
- the width B DT of the valley 52 of the upper threads may, for. B. be in the range of 1.5 mm. Due to the increase in wall thickness in the lower threads (FIG. 7), the width of the valleys is shortened in accordance with the increase in wall thickness, such as from a comparison of FIGS. 6 and 7 results. Accordingly, the width of the B DK in the upper threads is smaller than in the lower threads, as also Figs. 6 and 7 illustrate.
- FIGS. 11 to 13 show a further embodiment of a dowel 79 which, with respect to the geometric data with respect to the inner and outer flank angles and the wall thicknesses of the threads in the upper part of the dowel 79, matches that of the dowel 30, so that in this respect like reference numerals are used for like elements.
- the lower flank wall 78, 80 varies in the successive threads in their thickness such that from thread to thread an increase takes place, quasi the inner edge is moved parallel from one thread to the other thread to increase the wall thickness, so that, as a result, the lowermost portion 80 has a greater thickness than the previous portion 78 of the flank wall.
- a wall thickness gain of thread to thread of about 0.05 mm, so over the last four threads a wall thickness increase between the first and the last thread of 2 mm should be done, just to name numbers.
- the screw touches 10 in the screwed, but not force-transmitting state substantially exclusively the lowest inner edge 82 of the internal thread, whereas to the inner edges 84, 86 of the other force-transmitting portions 78 of the flank, an optionally minimal gap.
- the invention is not limited to the fact that the force-transmitting flank walls are thicker in the direction of the valleys of the internal thread. Rather, a constant wall thickness can also be present. It is essential, however, that the wall thicknesses of the force-transmitting flank walls is considerably greater than that of the non-transmitting flank walls.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Connection Of Plates (AREA)
- Joining Of Building Structures In Genera (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200610001144 DE102006001144A1 (de) | 2006-01-06 | 2006-01-06 | Schienenbefestigung sowie Schraube und Schraubdübel für diese |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1818452A1 true EP1818452A1 (fr) | 2007-08-15 |
Family
ID=37686146
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06027127A Withdrawn EP1818452A1 (fr) | 2006-01-06 | 2006-12-30 | Système de fixation de rails, vis et vis-cheville pour ce système |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1818452A1 (fr) |
DE (1) | DE102006001144A1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008018438A1 (de) * | 2008-04-08 | 2009-10-15 | Adolf Würth GmbH & Co. KG | Schraube |
RU2767115C1 (ru) * | 2021-11-09 | 2022-03-16 | Акционерное общество "РС-Комплект" | Соединение рельсового скрепления с основанием рельсового пути |
CN114908622A (zh) * | 2022-03-31 | 2022-08-16 | 广州南科铁路器材有限公司 | 一种铁路提速道岔岔枕失效螺栓重锚的检修方法 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3079243B1 (fr) * | 2018-03-20 | 2020-05-08 | Vape Rail International En Abrege V.R.I. | Ensemble d'ancrage pour un rail de voie ferree et procede de fabrication de cet ensemble d'ancrage |
Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1048590A (en) | 1911-06-23 | 1912-12-31 | Joseph F Russell | Railway-spike. |
DE534990C (de) | 1931-10-07 | Friedrich Sammet Dr Ing | Duebel zum Eingiessen, Einpressen oder Einschlagen | |
US1948889A (en) | 1930-04-16 | 1934-02-27 | Simon Ernst | Dowel pin, stud, or the like |
GB558097A (en) * | 1942-02-25 | 1943-12-21 | Bunyan John | Improvements in or relating to the securing of rails or the like to railway sleepers or like surfaces |
FR1011101A (fr) * | 1948-12-07 | 1952-06-19 | Traverses En Beton Arme Sa | Dispositif d'attache isolante des rails |
DE951936C (de) | 1951-03-31 | 1956-11-08 | Antonin Brogiotti Dr Ing | Holzschraube, insbesondere Schwellenschraube |
DE1024993B (de) | 1955-09-03 | 1958-02-27 | August Henkes | Befestigung fuer Schienen und Unterlagsplatten auf Betonschwellen |
GB865120A (en) | 1958-05-07 | 1961-04-12 | Samuel Tippett | Improvements relating to the holding down of rails on sleepers |
FR1484186A (fr) | 1966-06-17 | 1967-06-09 | Vape Sa Ets | Gaine isolante de tirefonds |
DE1575322B1 (de) | 1966-11-24 | 1971-04-08 | Vossloh Werke Gmbh | Schraubduebel aus Kunststoff,insbesondere fuer die Befestigung von Schwellenschrauben in Betonschwellen |
US4040327A (en) | 1974-09-20 | 1977-08-09 | Agency Of Industrial Science And Technology | High fatigue screw threads |
DE3503139A1 (de) | 1985-01-31 | 1986-08-14 | Wayss & Freytag Ag, 6000 Frankfurt | Kunststoffduebel fuer betonschwellen |
US5624219A (en) | 1994-12-29 | 1997-04-29 | Hamanaka Nut Manufacturing Co., Ltd. | High-strength bolt and high-strength nut |
DE19859696C1 (de) | 1998-12-23 | 2000-03-30 | Schraubenwerk Zerbst Gmbh | Verankerungsschraube für Schwellen und dgl. |
EP0785308B1 (fr) | 1996-01-17 | 2003-04-23 | Vossloh-Werke GmbH | Cheville hélicoidale en plastique |
-
2006
- 2006-01-06 DE DE200610001144 patent/DE102006001144A1/de not_active Withdrawn
- 2006-12-30 EP EP06027127A patent/EP1818452A1/fr not_active Withdrawn
Patent Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE534990C (de) | 1931-10-07 | Friedrich Sammet Dr Ing | Duebel zum Eingiessen, Einpressen oder Einschlagen | |
US1048590A (en) | 1911-06-23 | 1912-12-31 | Joseph F Russell | Railway-spike. |
US1948889A (en) | 1930-04-16 | 1934-02-27 | Simon Ernst | Dowel pin, stud, or the like |
GB558097A (en) * | 1942-02-25 | 1943-12-21 | Bunyan John | Improvements in or relating to the securing of rails or the like to railway sleepers or like surfaces |
FR1011101A (fr) * | 1948-12-07 | 1952-06-19 | Traverses En Beton Arme Sa | Dispositif d'attache isolante des rails |
DE951936C (de) | 1951-03-31 | 1956-11-08 | Antonin Brogiotti Dr Ing | Holzschraube, insbesondere Schwellenschraube |
DE1024993B (de) | 1955-09-03 | 1958-02-27 | August Henkes | Befestigung fuer Schienen und Unterlagsplatten auf Betonschwellen |
GB865120A (en) | 1958-05-07 | 1961-04-12 | Samuel Tippett | Improvements relating to the holding down of rails on sleepers |
FR1484186A (fr) | 1966-06-17 | 1967-06-09 | Vape Sa Ets | Gaine isolante de tirefonds |
DE1575322B1 (de) | 1966-11-24 | 1971-04-08 | Vossloh Werke Gmbh | Schraubduebel aus Kunststoff,insbesondere fuer die Befestigung von Schwellenschrauben in Betonschwellen |
US4040327A (en) | 1974-09-20 | 1977-08-09 | Agency Of Industrial Science And Technology | High fatigue screw threads |
DE3503139A1 (de) | 1985-01-31 | 1986-08-14 | Wayss & Freytag Ag, 6000 Frankfurt | Kunststoffduebel fuer betonschwellen |
US5624219A (en) | 1994-12-29 | 1997-04-29 | Hamanaka Nut Manufacturing Co., Ltd. | High-strength bolt and high-strength nut |
EP0785308B1 (fr) | 1996-01-17 | 2003-04-23 | Vossloh-Werke GmbH | Cheville hélicoidale en plastique |
DE19859696C1 (de) | 1998-12-23 | 2000-03-30 | Schraubenwerk Zerbst Gmbh | Verankerungsschraube für Schwellen und dgl. |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008018438A1 (de) * | 2008-04-08 | 2009-10-15 | Adolf Würth GmbH & Co. KG | Schraube |
RU2767115C1 (ru) * | 2021-11-09 | 2022-03-16 | Акционерное общество "РС-Комплект" | Соединение рельсового скрепления с основанием рельсового пути |
CN114908622A (zh) * | 2022-03-31 | 2022-08-16 | 广州南科铁路器材有限公司 | 一种铁路提速道岔岔枕失效螺栓重锚的检修方法 |
Also Published As
Publication number | Publication date |
---|---|
DE102006001144A1 (de) | 2007-07-12 |
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