EP0173227B1 - Anchor element for the fastening of step irons in wall surfaces - Google Patents

Anchor element for the fastening of step irons in wall surfaces Download PDF

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Publication number
EP0173227B1
EP0173227B1 EP85110429A EP85110429A EP0173227B1 EP 0173227 B1 EP0173227 B1 EP 0173227B1 EP 85110429 A EP85110429 A EP 85110429A EP 85110429 A EP85110429 A EP 85110429A EP 0173227 B1 EP0173227 B1 EP 0173227B1
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EP
European Patent Office
Prior art keywords
anchor
annular ribs
ribs
anchor sleeve
sleeve
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EP85110429A
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German (de)
French (fr)
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EP0173227A3 (en
EP0173227A2 (en
Inventor
Heinrich Stephan Zenhäusern
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Individual
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Priority to AT85110429T priority Critical patent/ATE40177T1/en
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    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C9/00—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes
    • E06C9/02—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes rigidly mounted
    • E06C9/04—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes rigidly mounted in the form of climbing irons or the like

Definitions

  • the invention relates to an anchoring element which can be fastened in wall surfaces for a climbing device with an internal reinforcement made of metal with at least one installation end and with an anchoring sleeve made of plastic which is firmly seated at the installation end and which has a front end cone, a middle one which adjoins the end cone and with Has transverse ribs provided anchoring part and on the end opposite the end cone, an elastic sealing collar is freely displaceable.
  • the wall surfaces can consist of masonry, concrete, wood or comparable materials.
  • the anchoring element which is fastened by drilling into boreholes in the wall surfaces or by inserting it into the concrete mass to be cast, should also lie close to the wall surface with the intentional collar of the anchoring sleeve in order to prevent corrosive or decomposing media from penetrating into the hole wall surrounding the anchoring sleeve.
  • the invention is therefore based on the object of specifying an anchoring element of the type described at the outset which ensures a secure seal even with different shapes or radii of the wall surfaces.
  • the sealing collar around the anchoring sleeve can be it on a flat or be it on a curved wall surface, can be adapted or deformed in accordance with the course of the wall and can be effectively and permanently sealed in this position.
  • the sealing collar can represent a stop for a prefabricated manhole shape.
  • the circular ribs and grooves of the retaining members define a large number of parallel planes, all of which are perpendicular to the axis of the anchoring sleeve, while the planes determined by the individual inner ribs and grooves of the elastomer sleeve can also run obliquely to the axis of the anchoring sleeve, depending on the position of the elastomer sleeve ( Figure 7).
  • the retaining elements have the function of sealing ribs in particular: opposite the wall surfaces if they are partly in the fastening hole for the anchoring sleeve, and opposite the elastomer sleeve if they are at least partially enclosed by the latter.
  • the retaining members have an outer diameter that is slightly, e.g. by 1 to 2 mm, larger than that of the immediately adjacent transverse rib or transverse rib segments of the anchoring part, the triangular profile of the retaining elements in radial section corresponding to that of the transverse ribs on the anchoring part.
  • the retaining elements consist of two groups of circular lips with different fineness and if the outer diameter of both groups is the same.
  • the first group consisting of e.g. can consist of three to five circular, continuous circular ribs, has a coarser division in the axial direction of e.g. 3 to 5 mm with a depth of the intermediate grooves of 1.5 to 3 mm.
  • the first group is preferably also used for sealing against the wall surface or the fastening hole.
  • the second group e.g. can consist of a large number of geometrically similar circular lips, has a finer pitch in the axial direction, so that e.g.
  • This second group is preferably used for adjustment and sealing against the elastomer sleeve.
  • the inner reinforcement before applying the plastic protective sheath, e.g. by means of an injection molding process, if necessary also in such a way that the connecting arms between the cranked tread piece and the fastening legs essentially on both the tread piece axis and the leg axes, such as known per se, are oriented vertically (see CH-PS 289 007). Any errors in the cold-formed internal reinforcement can be recognized immediately.
  • the internal reinforcement can also be used in certain Cases are made of cast iron.
  • the uniform wall thickness of the protective jacket can be kept relatively low. Polyethylene or polypropylene is preferably selected as the sheathing plastic.
  • transverse ribs of the anchoring part by a plurality of rib segments which follow one another in the circumferential direction at short intervals, as is known per se from DE-PS 22 54 550.
  • the main advantage associated with this is that due to the subdivision of the transverse ribs into rib segments, a harder elastic starting material for the entire plastic protective jacket can be selected than would be the case with continuous transverse ribs on the anchoring part.
  • the rib segments can be individually deformed and are thus better anchored in the wall hole without their deformation having any effect on adjacent segments.
  • the rib segments show a triangular profile, the back of which is perpendicular and the base of which is or lies parallel to the axis of the leg or anchoring sleeve.
  • the third side of the triangular profile is inclined from the outside inwards and from the back to the front to the axis of the leg.
  • a position of the connecting arms between the tread piece and the fastening legs perpendicular to the leg axes creates the prerequisite for a safe, error-free driving of the anchoring sleeves of the stirrup into the wall holes, which are known to be somewhat smaller in diameter.
  • the U-shaped stirrup 1 Seen from the outside, the U-shaped stirrup 1 according to FIG. 1 consists of two mutually parallel, horizontal fastening legs 2, 3 and a central, horizontally oriented, horizontal tread piece 4 that is bent downwards relative to the fastening legs 2, 3.
  • the cross section of the stirrup 1 is essentially circular.
  • the stirrup 1 has a tubular or solid rod-shaped, rigid inner reinforcement 5 made of metal or a metal alloy and a protective sheath 6 surrounding the inner reinforcement 5 made of plastic, as well as, in each leg end area, an anchoring sleeve firmly seated on the inner reinforcement 5 7.
  • This anchoring sleeve 7, which is also made of plastic, has an end cone 8 at the front, a central, optionally tapering slightly towards the front, adjoining the end cone 8, provided with transverse ribs 9, anchoring part 10 and a sealing collar 11 placed at the rear.
  • the protective cover 6 and the anchoring cover 7, with the exception of the sealing collar 11, are designed as a one-piece protective jacket 12 which surrounds the correspondingly pre-shaped inner reinforcement 5 and which, for has been applied by an injection molding process.
  • the anchoring sleeve 7 behind the anchoring part 10 has a section provided with two groups of retaining members 13 and 18, on which the sealing collar 11 designed as a soft elastomer sleeve lies tightly and is freely adjustable and in the set position by the retaining members 13 and / or 18 is held.
  • the retention members 13 of one group are formed by a plurality of closely spaced, alternating circular ribs and grooves, which are continuous around the circumference of the anchoring sleeve 7 and perpendicular to it Rotate axis.
  • a number of annular ribs 15 are provided, which cooperate elastically with the retaining members 13 and / or 18 to form a sealing toothing.
  • the transverse ribs 9 of the anchoring part 7 are formed by a plurality of rib segments 16 which follow one another in the circumferential direction at short intervals, the individual rib segments lying on circles being arranged parallel to one another.
  • the rib segments 16 of adjacent transverse ribs 9 are arranged at an angle to one another, so that a gap 17 between two adjacent segments 16 of the same transverse rib 9 is covered by a segment 16 of the adjacent transverse rib 9.
  • the retaining members 18 are provided, which are likewise formed by a plurality of continuously rotating, annular ribs, the outer diameter of which is slightly larger than that of the immediately adjacent transverse rib 9.
  • the retention members 18 of the other group cover an area which is approximately a quarter to a third of the length of the area occupied by the transverse ribs 9.
  • the retention members 13 directly adjoin the adjacent retention members 18.
  • the outer diameter of the retaining members 13 is preferably the same size as that of the retaining members 18, so that — as already mentioned — the sealing collar 11 can also sit sealingly on the retaining members 18.
  • the sealing collar 11 has a wide sealing flange 19 with a flat front surface 20 (in a relaxed state).
  • the fastening limbs 2, 3 are connected to the transverse tread piece 4 via perpendicular, downwardly bent, vertical connecting arms 21, 22, which is also essentially perpendicular to the connecting arms 21, 22.
  • each vertical connecting arm 21, 22 which has a flat stop surface 25 or 26 which is perpendicular to the axis of the leg and which corresponds to that (26 or 25) of the other connecting arm (22 or 21) associated stop (24 or 23) and serves as a protective cushion for hammer blows.
  • the stirrup described is torsion-resistant and corrosion-resistant in itself and also against the wall surfaces surrounding it. It can be hammered into wall surfaces made of concrete, masonry, wood or comparable material with appropriate holes, or can be inserted in prefabricated manhole shapes using the wet process or installed on the construction site. Due to the previous shape of the inner reinforcement made of steel, chrome steel or aluminum (alloy) and the subsequent sheathing with e.g. molten polyethylene by means of high pressure, a homogeneous, tight-fitting elastic jacket is obtained which is neither brittle, so sensitive to impact, nor can it be infiltrated by corrosive media.
  • the anchoring sleeve 7 according to FIG. 4 is designed as an individual part and can be used both in connection with a stirrup 1 according to FIGS. 1 to 3 and in connection with a ladder console 30 according to FIG. 6.
  • the anchor sleeve 7 has a longitudinal bore 27 for pressing in or knocking in the installation end 5a of the internal reinforcement 5.
  • the outside diameter of the retaining members 18 corresponds, so that the sealing collar 11 can at least partially also be supported or fixed in a sealing manner on the cylinder surface 28 (see FIG. 7).
  • the cylinder surface 28 merges by means of a transition cone 29 into the end face of the anchoring sleeve 7, in which the opening of the longitudinal bore 27 is located.
  • FIG. 6 shows how the end of the inner reinforcement 5 facing away from the installation end 5a can be designed as a pipe clamp 31 for the clamping of a ladder stile 32, which is indicated by dashed lines.
  • the pipe clamp 31 consists in a conventional manner of a half-shell 31 a fixedly connected to the inner reinforcement 5 and a movable half-shell 31 b which can be braced by means of a tension screw 33.
  • a complete anchoring element is created by driving the inner reinforcement 5 into the anchoring sleeve 7.
  • the sealing collar 11 ( Figure 5) can then be opened from the front, i.e. Slide over the end cone 8.
  • the cylindrical wall surface 34 of a shaft which is perpendicular to the plane of the drawing, is indicated by a dashed circular line, to which the axis of the anchoring sleeve 7 runs eccentrically or on a chord. It can be seen in which elastic deformation compared to the initial shape shown in FIG. 5, the sealing collar 11 can be applied to this wall surface 34 in order to ensure a tight and optically clean closure.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Reinforcement Elements For Buildings (AREA)

Abstract

1. Step iron anchor element which can be fastened in wall surfaces (34) and has an internal reinforcement (5) of metal, with at least one insert end (5a) and an anchor sleeve (7) of plastic which sits firmly on the insert end, said anchor sleeve having a frontal terminating cone (8), a central anchoring portion (10) which is a continuation of the terminating cone and is provided with transverse ribs (9), an elastic sealing collar (11) being arranged to be freely displaceable on the end of said anchor sleeve that is opposite the terminating cone (8), characterised in that a) the end of the anchor sleeve (7) is provided with a series of adjacent, continuously encircling annular ribs (13, 18) and annular grooves which form retention members, and b) the sealing collar (11) is a flexible elastomer collar which fits snugly on the annular ribs (13, 18) and on its inside face likewise has a series of annular ribs (15) which cooperate elastically with the annular ribs (13, 18) of the anchor sleeve (7) to form a sealing system of teeth.

Description

Die Erfindung betrifft ein in Wandflächen befestigbares Verankerungselement für eine Steigvorrichtung mit einer Innenbewehrung aus Metall mit mindestens einem Einbau-Ende sowie mit einer am Einbau-Ende fest aufsitzenden Verankerungshülse aus Kunststoff, die einen vorderen Abschlusskonus, einen mittleren, sich an den Abschlusskonus anschliessenden und mit Querrippen versehenen Verankerungsteil aufweist und auf deren dem Abschlusskonus entgegengesetztem Ende ein elastischer Abdichtkragen frei verschiebbar angeordnet ist.The invention relates to an anchoring element which can be fastened in wall surfaces for a climbing device with an internal reinforcement made of metal with at least one installation end and with an anchoring sleeve made of plastic which is firmly seated at the installation end and which has a front end cone, a middle one which adjoins the end cone and with Has transverse ribs provided anchoring part and on the end opposite the end cone, an elastic sealing collar is freely displaceable.

Ein derartiges Verankerungselement ist durch die Veröffentlichung «MSU-Steigbügel. Sicherheits-Besteigungselemente für den Hoch- und Tiefbau» in «Betonwerk + Fertigteil-Technik» Band 48 (April 1982) Seiten A68 bis A69 bekannt. Dabei sind allerdings zwischen dem Abdichtkragen und der Verankerungshülse keine besonderen Rückhalteorgane und keine besonderen Abdichtmittel angeordnet, die den Abdichtkragen kräftig gegen die - meist zylindrische - Wandfläche (Schacht- oder Turmwand) pressen und eine Abdichtung bewirken. Für verschieden stark gekrümmte Wandflächen müsste infolgedessen eine Vielzahl von der Wölbung angepassten Abdichtkragen vorgesehen werden, was zu einer umfangreichen Lagerhaltung an Steigbügeln und Abdichtkragen führen würde.Such an anchoring element is through the publication «MSU stirrups. Safety climbing elements for building construction and civil engineering »in« Concrete Plant + Precast Technology »Volume 48 (April 1982) Pages A68 to A69 known. However, there are no special retaining elements and no special sealing means between the sealing collar and the anchoring sleeve that press the sealing collar firmly against the - usually cylindrical - wall surface (shaft or tower wall) and effect a seal. As a result, a large number of sealing collars adapted to the curvature would have to be provided for differently curved wall surfaces, which would lead to extensive storage of stirrups and sealing collars.

Die Wandflächen können hierbei aus Mauerwerk, Beton, Holz oder vergleichbaren Werkstoffen bestehen. Das durch Einschlagen in Bohrlöcher in den Wandflächen oder durch Einsetzen in die zu giessende Betonmasse befestigte Verankerungselement soll auch mit dem Absichtkragen der Verankerungshülse dicht an der Wandfläche anliegen, um auch hier ein Eindringen korrodierender bzw. zersetzender Medien in die die Verankerungshülse umgebende Lochwandung zu verhindern.The wall surfaces can consist of masonry, concrete, wood or comparable materials. The anchoring element, which is fastened by drilling into boreholes in the wall surfaces or by inserting it into the concrete mass to be cast, should also lie close to the wall surface with the intentional collar of the anchoring sleeve in order to prevent corrosive or decomposing media from penetrating into the hole wall surrounding the anchoring sleeve.

Der Erfindung liegt daher die Aufgabe zugrunde, ein Verankerungselement der eingangs beschriebenen Gattung anzugeben, das auch bei unterschiedlichen Formen bzw. Radien der Wandflächen eine sichere Abdichtung gewährleistet.The invention is therefore based on the object of specifying an anchoring element of the type described at the outset which ensures a secure seal even with different shapes or radii of the wall surfaces.

Diese Aufgabe wird erfindungsgemäss dadurch gelöst, dass

  • a) das Ende der Verankerungshülse mit einer Rückhalteorgane bildenden Reihe nebeneinander liegender, kontinuierlich umlaufender Kreisringrippen und -rillen versehen ist, und
  • b) der Abdichtkragen als weichelastische, auf den Kreisringrippen dicht aufliegende Elastomermanschette ausgebildet ist, die auf der Innenseite gleichfalls eine Reihe von Kreisringrippen aufweist, die unter Bildung einer abdichtenden Verzahnung elastisch mit den Kreisringrippen der Verankerungshülse zusammenwirken.
According to the invention, this object is achieved in that
  • (a) the end of the anchoring sleeve is provided with a row of juxtaposed, continuously circumferential circular ring ribs and grooves, and
  • b) the sealing collar is designed as a soft elastic elastomer sleeve which lies tightly on the circular ring ribs and likewise has a series of circular ring ribs on the inside which cooperate elastically with the circular ring ribs of the anchoring sleeve to form a sealing toothing.

Dadurch kann der Abdichtkragen um die Verankerungshülse herum, sei es an einer ebenen, sei es an einer gewölbten Wandfläche, dem Wandverlauf entsprechend angepasst bzw. verformt und in dieser Lage wirkungsvoll und dauerhaft abgedichtet gehalten werden. Ausserdem kann der Abdichtkragen einen Anschlag für eine Vorfabrikations-Schachtform darstellen.As a result, the sealing collar around the anchoring sleeve, be it on a flat or be it on a curved wall surface, can be adapted or deformed in accordance with the course of the wall and can be effectively and permanently sealed in this position. In addition, the sealing collar can represent a stop for a prefabricated manhole shape.

Die Kreisringrippen und -rillen der Rückhalteorgane bestimmen eine Vielzahl paralleler Ebenen, die sämtlich senkrecht auf der Achse der Verankerungshülse stehen, während die durch die einzelnen Innenrippen und -rillen der Elastomermanschette bestimmten Ebenen je nach Lage der Elastomermanschette auch schräg zur Achse der Verankerungshülseverlaufen können (Figur 7).The circular ribs and grooves of the retaining members define a large number of parallel planes, all of which are perpendicular to the axis of the anchoring sleeve, while the planes determined by the individual inner ribs and grooves of the elastomer sleeve can also run obliquely to the axis of the anchoring sleeve, depending on the position of the elastomer sleeve (Figure 7).

Die Rückhalteorgane haben dabei insbesondere auch die Funktion von Dichtungsrippen: Gegenüber den Wandflächen, wenn sie sich zum Teil im Befestigungsloch für die Verankerungshülse befinden, und gegenüber der Elastomermanschette, wenn sie mindestens teilweise von dieser umschlossen sind. Zum Zwecke der besseren Abdichtung gegenüber dem Befestigungsloch haben die Rückhalteorgane einen Aussendurchmesser, der geringfügig, z.B. um 1 bis 2 mm, grösser ist als jener der unmittelbar benachbarten Querrippen- bzw. Querrippensegmente des Verankerungsteils, wobei das Dreiecksprofil der Rückhalteorgane im Radialschnitt jenen der Querrippen am Verankerungsteil entspricht.The retaining elements have the function of sealing ribs in particular: opposite the wall surfaces if they are partly in the fastening hole for the anchoring sleeve, and opposite the elastomer sleeve if they are at least partially enclosed by the latter. For the purpose of better sealing against the fastening hole, the retaining members have an outer diameter that is slightly, e.g. by 1 to 2 mm, larger than that of the immediately adjacent transverse rib or transverse rib segments of the anchoring part, the triangular profile of the retaining elements in radial section corresponding to that of the transverse ribs on the anchoring part.

Es ist weiterhin vorteilhaft, wenn die Rückhalteorgane aus zwei Gruppen von Kreisringlippen mit unterschiedlicher Feinheit bestehen und wenn der Aussendurchmesser beider Gruppen gleich ist. Die erste Gruppe, die aus z.B. drei bis fünf ringförmig umlaufenden, ununterbrochenen Kreisringrippen bestehen kann, hat in Achsrichtung eine gröbere Teilung von z.B. 3 bis 5 mm bei einer Tiefe der dazwischen liegenden Rillen von 1,5 bis 3 mm. Die erste Gruppe dient bevorzugt auch zur Abdichtung gegenüber der Wandfläche bzw. dem Befestigungsloch. Die zweite Gruppe, die z.B. aus einer Vielzahl geometrisch ähnlicher Kreisringlippen bestehen kann, hat eine in Achsrichtung feinere Teilung, so dass z.B. auf eine axiale Länge von 30 mm 20 bis 40, vorzugsweise etwa 30 Kreisringlippen fallen, wobei die Tiefe der dazwischen liegenden Rillen etwa 0,20 bis 0,80 mm betragen kann. Diese zweite Gruppe dient bevorzugt zur Verstellung und Abdichtung gegenüber der Elastomermanschette.It is also advantageous if the retaining elements consist of two groups of circular lips with different fineness and if the outer diameter of both groups is the same. The first group consisting of e.g. can consist of three to five circular, continuous circular ribs, has a coarser division in the axial direction of e.g. 3 to 5 mm with a depth of the intermediate grooves of 1.5 to 3 mm. The first group is preferably also used for sealing against the wall surface or the fastening hole. The second group, e.g. can consist of a large number of geometrically similar circular lips, has a finer pitch in the axial direction, so that e.g. to an axial length of 30 mm 20 to 40, preferably about 30 circular ring lips, the depth of the grooves lying between them being about 0.20 to 0.80 mm. This second group is preferably used for adjustment and sealing against the elastomer sleeve.

Bei einer baulichen Vereinigung des Verankerungselements mit weiteren Teilen einer Innenbewehrung zu einem kompletten Steigbügel ergeben sich weitere Vorteile:When the anchoring element is structurally combined with other parts of an internal reinforcement to form a complete stirrup, there are further advantages:

Es wird möglich, die Innenbewehrung noch vor dem Aufbringen des Kunststoff-Schutzmantels, z.B. mittels eines Spritzgussverfahrens, zu verformen, gegebenenfalls auch derart, dass die Verbindungsarme zwischen dem abgekröpften Trittstück und den Befestigungsschenkeln sowohl auf die Trittstückachse als auch auf die Schenkelachsen im wesentlichen, wie an sich bekannt, senkrecht ausgerichtet sind (siehe CH-PS 289 007). Etwaige Fehler an der kaltverformten Innenbewehrung können dabei sofort erkannt werden. Die Innenbewehrung kann auch in bestimmten Fällen aus Gusseisen bestehen. Dabei kann die gleichmässige Wandstärke des Schutzmantels verhältnismässig gering gehalten werden. Als Ummantelungskunststoff wird vorzugsweise Polyäthylen oder Polypropylen gewählt. Insbesondere ist es möglich, die Verankerungshülse einstückig und aus dem gleichen Kunststoff wie der Schutzmantel zusammen mit diesem durch Umspritzen aufzubringen.It is possible to deform the inner reinforcement before applying the plastic protective sheath, e.g. by means of an injection molding process, if necessary also in such a way that the connecting arms between the cranked tread piece and the fastening legs essentially on both the tread piece axis and the leg axes, such as known per se, are oriented vertically (see CH-PS 289 007). Any errors in the cold-formed internal reinforcement can be recognized immediately. The internal reinforcement can also be used in certain Cases are made of cast iron. The uniform wall thickness of the protective jacket can be kept relatively low. Polyethylene or polypropylene is preferably selected as the sheathing plastic. In particular, it is possible to apply the anchoring sleeve in one piece and from the same plastic as the protective sheath together with it by overmolding.

Zwar sind Vollkunststoff-Steigbügel bereits aus der US-PS 4 100 997 bekannt. Diese müssen jedoch aufgrund ihres Ausgangsmaterials klobiger und massiver gebaut sein und können auch kein nach unten abgekröpftes Trittstück aufweisen. Um ein seitliches Ausgleiten des Benutzers vom Trittstück zu verhindern, sind an den Trittstückenden nach oben vorstehende Anschläge angeformt, die jedoch wieder die Gefahr des Hängenbleibens von Hosenbeinen und anderen Kleidungsstücken beim Abwärtssteigen des Benutzers mit sich bringen. Bei dem bekannten Steigbügel ist ausserdem ein Schutz des Mauerwerks im Lochrandbereich nicht gewährleistet.All-plastic stirrups are already known from US Pat. No. 4,100,997. However, these have to be bulky and solid due to their starting material and also cannot have a step piece that is bent downwards. In order to prevent the user from sliding sideways off the step piece, protruding stops are integrally formed on the end piece of the step piece, but this again entails the risk of getting caught on trouser legs and other items of clothing when the user descends. In the case of the known stirrups, protection of the masonry in the perforated area is also not guaranteed.

Es ist besonders vorteilhaft, die Querrippen des Verankerungsteils durch eine Vielzahl in Umfangsrichtung desselben in kurzen Abständen aufeinander folgender Rippensegmente zu bilden, wie dies an sich bereits durch die DE-PS 22 54 550 bekannt ist. Der damit verbundene wesentliche Vorteil ist darin zu sehen, dass aufgrund der Unterteilung der Querrippen in Rippensegmente ein härteres elastisches Ausgangsmaterial für den gesamten Kunststoff-Schutzmantel gewählt werden kann, als dies bei kontinuierlichen Querrippen am Verankerungsteil der Fall wäre. Im vorliegenden Falle sind die Rippensegmente einzeln verformbar und verankern sich so besser im Mauerloch, ohne dass ihre Verformung eine Rückwirkung auf benachbarte Segmente hätte. In einem durch die Schenkelachse geführten Axialschnitt zeigen die Rippensegmente ein Dreiecksprofil, dessen Rückseite senkrecht und dessen Basisseite parallel zur Schenkel- bzw. Verankerungshülsenachse steht bzw. liegt. Die dritte Seite des Dreiecksprofils ist dabei von aussen nach innen und von hinten nach vorne zur Schenkelachse geneigt.It is particularly advantageous to form the transverse ribs of the anchoring part by a plurality of rib segments which follow one another in the circumferential direction at short intervals, as is known per se from DE-PS 22 54 550. The main advantage associated with this is that due to the subdivision of the transverse ribs into rib segments, a harder elastic starting material for the entire plastic protective jacket can be selected than would be the case with continuous transverse ribs on the anchoring part. In the present case, the rib segments can be individually deformed and are thus better anchored in the wall hole without their deformation having any effect on adjacent segments. In an axial section through the leg axis, the rib segments show a triangular profile, the back of which is perpendicular and the base of which is or lies parallel to the axis of the leg or anchoring sleeve. The third side of the triangular profile is inclined from the outside inwards and from the back to the front to the axis of the leg.

Durch eine zu den Schenkelachsen senkrechte Lage der Verbindungsarme zwischen dem Trittstück und den Befestigungsschenkeln wird die Voraussetzung für ein sicheres, fehlerfreies Einschlagen der Verankerungshülsen des Steigbügels in die bekanntlich im Durchmesser etwas kleiner gehaltenen Mauerlöcher geschaffen. Um eine auf die Schenkelachse genau senkrecht stehende Schlagebene- bzw. -fläche am Steigbügelselbst zu definieren, ist es vorteilhaft auf der den Verankerungshülsen abgewandten Seite jedes Verbindungsarms einen parallel zum Verbindungsarm ausgerichteten Anschlag anzuformen, der eine ebene, auf der Schenkelachse senkrecht stehende Anschlagfläche aufweist, die mit jener des dem anderen Verbindungsarm zugeordneten Anschlags fluchtet.A position of the connecting arms between the tread piece and the fastening legs perpendicular to the leg axes creates the prerequisite for a safe, error-free driving of the anchoring sleeves of the stirrup into the wall holes, which are known to be somewhat smaller in diameter. In order to define a striking plane or face on the stirrup itself that is exactly perpendicular to the leg axis, it is advantageous to form on the side of each connecting arm facing away from the anchoring sleeves a stop which is aligned parallel to the connecting arm and which has a flat stop face which is perpendicular to the leg axis. which is aligned with that of the stop associated with the other connecting arm.

Weitere vorteilhafte Ausgestaltungen des Erfindungsgegenstandes ergeben sich aus den übrigen Unteransprüchen.Further advantageous embodiments of the subject matter of the invention emerge from the remaining subclaims.

Zwei Ausführungsbeispiele des Erfindungsgegenstandes werden nachstehend anhand der Figuren 1 bis 7 näher erläutert.Two exemplary embodiments of the subject matter of the invention are explained in more detail below with reference to FIGS. 1 to 7.

Es zeigen:

  • Figur 1 zwei erfindungsgemässe Verankerungselemente an einem Steigbügel in perspektivischer Ansicht,
  • Figur 2 eine Draufsicht auf eines der Einbau-Enden des Steigbügels nach Figur 1,
  • Figur 3 einen Axialschnitt durch den Gegenstand von Figur 2 entlang der Linie 111-111 in Figur 2,
  • Figuren 4, 5 und 6 perspektivische Ansichten einer einzelnen Verankerungshülse (Figur 4), einer Elastomermanschette (Figur 5) und einer Innenbewehrung, deren eines Ende als Rohrschelle für die Aufnahme eines Leiterholms ausgebildet ist (Figur 6), und
  • Figur 7 einen Axialschnitt durch eine Verankerungshülse nach Figur 4 mit einer schräg aufgeschobenen Elastomermanschette nach Figur 5.
Show it:
  • FIG. 1 shows two anchoring elements according to the invention on a stirrup in a perspective view,
  • FIG. 2 shows a plan view of one of the installation ends of the stirrup according to FIG. 1,
  • 3 shows an axial section through the object of FIG. 2 along the line 111-111 in FIG. 2,
  • Figures 4, 5 and 6 are perspective views of a single anchoring sleeve (Figure 4), an elastomer sleeve (Figure 5) and an inner reinforcement, one end of which is designed as a pipe clamp for receiving a ladder bar (Figure 6), and
  • 7 shows an axial section through an anchoring sleeve according to FIG. 4 with an obliquely pushed-on elastomer sleeve according to FIG. 5.

Der U-förmige Steigbügel 1 nach Figur 1 besteht, von aussen gesehen, aus zwei zueinander parallelen, horizontalen Befestigungsschenkeln 2, 3 und einem mittleren, gegenüber den Befestigungsschenkeln 2, 3 nach unten abgekröpften, quergerichteten, horizontalen Trittstück 4.Seen from the outside, the U-shaped stirrup 1 according to FIG. 1 consists of two mutually parallel, horizontal fastening legs 2, 3 and a central, horizontally oriented, horizontal tread piece 4 that is bent downwards relative to the fastening legs 2, 3.

Der Querschnitt des Steigbügels 1 ist im wesentlichen kreisförmig. Der Steigbügel 1 besitzt eine der äusseren Form entsprechend ausgebildete rohr- oder vollstabförmige, steife Innenbewehrung 5 aus Metall oder einer Metall-Legierung und eine die Innenbewehrung 5 umgebende Schutzhülle 6 aus Kunststoff, sowie, in jedem Schenkelendbereich, eine auf der Innenbewehrung 5 fest aufsitzende Verankerungshülse 7. Diese Verankerungshülse 7, die gleichfalls aus Kunststoff besteht, hat vorne einen Abschlusskonus 8, einen mittleren, gegebenenfalls nach vorne leicht konisch sich verjüngenden, an den Abschlusskonus 8 anschliessenden, mit Querrippen 9 versehenen Verankerungsteil 10 und einem rückwärtig gelegten Abdichtkragen 11.The cross section of the stirrup 1 is essentially circular. The stirrup 1 has a tubular or solid rod-shaped, rigid inner reinforcement 5 made of metal or a metal alloy and a protective sheath 6 surrounding the inner reinforcement 5 made of plastic, as well as, in each leg end area, an anchoring sleeve firmly seated on the inner reinforcement 5 7. This anchoring sleeve 7, which is also made of plastic, has an end cone 8 at the front, a central, optionally tapering slightly towards the front, adjoining the end cone 8, provided with transverse ribs 9, anchoring part 10 and a sealing collar 11 placed at the rear.

Wie aus den Figuren 1 bis 3 ersichtlich, sind die Schutzhülle 6 und die Verankerungshülle 7 mit Ausnahme des Abdichtkragens 11 als einstückiger Schutzmantel 12 ausgebildet, der die entsprechend vorgeformte Innenbewehrung 5 umgibt und auf letztere, z.B. durch einen Spritzgussvorgang aufgebracht worden ist. An ihrem Umfang weist die Verankerungshülse 7 hinter dem Verankerungsteil 10 ein mit zwei Gruppen von Rückhalteorganen 13 und 18 versehenes Teilstück auf, an dem der als weiche Elastomermanschette ausgebildete Abdichtkragen 11 dicht anliegt und frei verstellbar angeordnet ist und in der eingestellten Lage von den Rückhalteorganen 13 und/oder 18 gehalten wird.As can be seen from FIGS. 1 to 3, the protective cover 6 and the anchoring cover 7, with the exception of the sealing collar 11, are designed as a one-piece protective jacket 12 which surrounds the correspondingly pre-shaped inner reinforcement 5 and which, for has been applied by an injection molding process. On its periphery, the anchoring sleeve 7 behind the anchoring part 10 has a section provided with two groups of retaining members 13 and 18, on which the sealing collar 11 designed as a soft elastomer sleeve lies tightly and is freely adjustable and in the set position by the retaining members 13 and / or 18 is held.

Die Rückhalteorgane 13 der einen Gruppe sind durch eine Vielzahl eng aneinander liegender, einander abwechselnder Kreisringrippen- und -rillen gebildet, die kontinuierlich um den Umfang der Verankerungshülse 7 und senkrecht zu deren Achse umlaufen. An der Innenseite des Abdichtkragens 11 ist eine Anzahl von Kreisringrippen 15 vorgesehen, die unter Bildung einer abdichtenden Verzahnung elastisch mit den Rückhalteorganen 13 und/oder 18 zusammenwirken.The retention members 13 of one group are formed by a plurality of closely spaced, alternating circular ribs and grooves, which are continuous around the circumference of the anchoring sleeve 7 and perpendicular to it Rotate axis. On the inside of the sealing collar 11, a number of annular ribs 15 are provided, which cooperate elastically with the retaining members 13 and / or 18 to form a sealing toothing.

Die Querrippen 9 des Verankerungsteils 7 werden durch eine Vielzahl in Umfangsrichtung in kurzen Abständen aufeinander folgender Rippensegmente 16 gebildet, wobei die einzelnen auf Kreisen liegenden Rippensegmente parallel zueinander angeordnet sind. Ausserdem sind die Rippensegmente 16 benachbarter Querrippen 9 zueinander winkelversetzt angeordnet, so dass jeweils eine Lücke 17 zwischen zwei benachbarten Segmenten 16 derselben Querrippe 9 durch ein Segment 16 der benachbarten Querrippe 9 abgedeckt ist.The transverse ribs 9 of the anchoring part 7 are formed by a plurality of rib segments 16 which follow one another in the circumferential direction at short intervals, the individual rib segments lying on circles being arranged parallel to one another. In addition, the rib segments 16 of adjacent transverse ribs 9 are arranged at an angle to one another, so that a gap 17 between two adjacent segments 16 of the same transverse rib 9 is covered by a segment 16 of the adjacent transverse rib 9.

Zwischen den Rückhalteorganen 13 und den Querrippen 9 des Verankerungsteils 10 sind die Rückhalteorgane 18 vorgesehen, die gleichfalls durch mehrere, kontinuierlich umlaufende, ringförmige Rippen gebildet werden, deren Aussendurchmesser geringfügig grösser als jener der unmittelbar benachbarten Querrippe 9 ist. Die Rückhalteorgane 18 der anderen Gruppe bedecken einen Bereich, der in der Länge etwa ein Viertel bis ein Drittel der Länge des durch die Querrippen 9 eingenommenen Bereichs beträgt. Die Rückhalteorgane 13 schliessen direkt an die benachbarten Rückhalteorgane 18 an. Dabei ist der Aussendurchmesser der Rückhalteorgane 13 vorzugsweise gleich gross wie jener der Rückhalteorgane 18, so dass-wie bereits gesagt - der Abdichtkragen 11 auch auf den Rückhalteorganen 18 dichtend aufsitzen kann. Am vorderen Teil hat der Abdichtkragen 11 einen breiten Dichtungsflansch 19 mit (in entspanntem Zustand) ebener Frontfläche 20.Between the retaining members 13 and the transverse ribs 9 of the anchoring part 10, the retaining members 18 are provided, which are likewise formed by a plurality of continuously rotating, annular ribs, the outer diameter of which is slightly larger than that of the immediately adjacent transverse rib 9. The retention members 18 of the other group cover an area which is approximately a quarter to a third of the length of the area occupied by the transverse ribs 9. The retention members 13 directly adjoin the adjacent retention members 18. The outer diameter of the retaining members 13 is preferably the same size as that of the retaining members 18, so that — as already mentioned — the sealing collar 11 can also sit sealingly on the retaining members 18. At the front part, the sealing collar 11 has a wide sealing flange 19 with a flat front surface 20 (in a relaxed state).

Die Befestigungsschenkel 2, 3 sind über senkrecht dazu verlaufende, nach abwärts gebogene, vertikale Verbindungsarme 21, 22 mit dem querverlaufenden Trittstück 4 verbunden, das im wesentlichen ebenfalls senkrecht auf den Verbindungsarmen 21, 22 steht.The fastening limbs 2, 3 are connected to the transverse tread piece 4 via perpendicular, downwardly bent, vertical connecting arms 21, 22, which is also essentially perpendicular to the connecting arms 21, 22.

Auf der den Verankerungshülsen 7 abgewandten Seite ist auf jedem senkrechten Verbindungsarm 21, 22 ein parallel dazu ausgerichteter Anschlag 23, 24 angeformt, der eine ebene, auf der Schenkelachse senkrecht stehende Anschlagfläche 25 oder 26 aufweist, die mit jener (26 oder 25) des dem anderen Verbindungsarm (22 oder 21) zugeordneten Anschlags (24 oder 23) fluchtet und als Schutzpolster für Hammerschläge dient.On the side facing away from the anchoring sleeves 7, a parallel stop 23, 24 is formed on each vertical connecting arm 21, 22, which has a flat stop surface 25 or 26 which is perpendicular to the axis of the leg and which corresponds to that (26 or 25) of the other connecting arm (22 or 21) associated stop (24 or 23) and serves as a protective cushion for hammer blows.

Der beschriebene Steigbügel ist verwindungssteif und korrosionsbeständig in sich selbst und auch gegenüber den ihn umgebenden Wandflächen. Er kann in Wandflächen aus Beton, Mauerwerk, Holz oder vergleichbares Material mit entsprechenden Bohrungen eingeschlagen oder im Nassverfahren in vorfabrizierten Schachtformen eingelegt oder auf der Baustelle eingebaut werden. Durch die vorherige Formgebung der aus Stahl, Chromstahl oder Aluminium(-legierung) bestehenden Innenbewehrung und das nachträgliche Ummanteln mit z.B. geschmolzenem Polyäthylen mittels Hochdruck wird ein homogener eng anliegender elastischer Mantel erhalten, der weder spröde, also schlagempfindlich, ist, noch von korrodierenden Medien unterwandert werden kann.The stirrup described is torsion-resistant and corrosion-resistant in itself and also against the wall surfaces surrounding it. It can be hammered into wall surfaces made of concrete, masonry, wood or comparable material with appropriate holes, or can be inserted in prefabricated manhole shapes using the wet process or installed on the construction site. Due to the previous shape of the inner reinforcement made of steel, chrome steel or aluminum (alloy) and the subsequent sheathing with e.g. molten polyethylene by means of high pressure, a homogeneous, tight-fitting elastic jacket is obtained which is neither brittle, so sensitive to impact, nor can it be infiltrated by corrosive media.

In den Figuren 4 bis 7 werden für gleiche Teile oder Elemente gleiche Bezugszeichen verwendet.4 to 7, the same reference numerals are used for the same parts or elements.

Die Verankerungshülse 7 nach Figur 4 ist in diesem Fall als Einzelteil ausgebildet und sowohl im Zusammenhang mit einem Steigbügel 1 nach den Figuren 1 bis 3 als auch im Zusammenhang mit einer Leiterkonsole 30 nach Figur 6 einsetzbar. Zum Einpressen bzw. Einschlagen des Einbau-Endes 5a der Innenbewehrung 5 besitzt die Verankerungshülse 7 eine Längsbohrung 27. Hinter den Rückhalteorganen 18 befindet sich an der Stelle, an der sich in Figur 1 die Rückhalteorgane 13 befinden, eine Zylinderfläche 28, deren Durchmesser mit dem Aussendurchmesser der Rückhalteorgane 18 übereinstimmt, so dass der Abdichtkragen 11 sich mindestens teilweise auch auf der Zylinderfläche 28 dichtend abstützen bzw. festsetzen kann (siehe Figur 7). Die Zylinderfläche28 geht mittels eines Übergangskonus 29 in die Stirnseite der Verankerungshülse 7 über, in der sich die Öffnung der Längsbohrung 27 befindet.In this case, the anchoring sleeve 7 according to FIG. 4 is designed as an individual part and can be used both in connection with a stirrup 1 according to FIGS. 1 to 3 and in connection with a ladder console 30 according to FIG. 6. The anchor sleeve 7 has a longitudinal bore 27 for pressing in or knocking in the installation end 5a of the internal reinforcement 5. Behind the retaining members 18 there is a cylinder surface 28, the diameter of which corresponds to that at which the retaining members 13 are located in FIG The outside diameter of the retaining members 18 corresponds, so that the sealing collar 11 can at least partially also be supported or fixed in a sealing manner on the cylinder surface 28 (see FIG. 7). The cylinder surface 28 merges by means of a transition cone 29 into the end face of the anchoring sleeve 7, in which the opening of the longitudinal bore 27 is located.

Figur 6 zeigt, in welcher Weise das dem Einbau-Ende 5a abgekehrte Ende der Innenbewehrung 5 als Rohrschelle 31 für die Einspannung eines Leiterholms 32 ausgebildet sein kann, der durch gestrichelte Linien angedeutet ist. Die Rohrschelle 31 besteht in herkömmlicher Weise aus einer fest mit der Innenbewehrung 5 verbundenen Halbschale 31 a und einer dagegen mittels einer Zugschraube 33 verspannbaren beweglichen Halbschale 31 b. Durch Eintreiben der Innenbewehrung 5 in die Verankerungshülse 7 entsteht ein komplettes Verankerungselement. Der Abdichtkragen 11 (Figur 5) lässt sich dann von vorn, d.h. über den Abschlusskonus 8 aufschieben.FIG. 6 shows how the end of the inner reinforcement 5 facing away from the installation end 5a can be designed as a pipe clamp 31 for the clamping of a ladder stile 32, which is indicated by dashed lines. The pipe clamp 31 consists in a conventional manner of a half-shell 31 a fixedly connected to the inner reinforcement 5 and a movable half-shell 31 b which can be braced by means of a tension screw 33. A complete anchoring element is created by driving the inner reinforcement 5 into the anchoring sleeve 7. The sealing collar 11 (Figure 5) can then be opened from the front, i.e. Slide over the end cone 8.

In Figur 7 ist die senkrecht zur Zeichenebene stehende zylindrische Wandfläche 34 eines Schachtes durch eine gestrichelte kreisförmige Linie angedeutet, zu der die Achse der Verankerungshülse 7 exzentrisch bzw. auf einer Sehne verläuft. Es ist erkennbar, in welcher elastischen Verformung gegenüber der in Figur 5 gezeigten Ausgangsform sich der Abdichtkragen 11 an diese Wandfläche 34 anlegen lässt um einen dichten und optisch sauberen Abschluss zu gewährleisten.In FIG. 7, the cylindrical wall surface 34 of a shaft, which is perpendicular to the plane of the drawing, is indicated by a dashed circular line, to which the axis of the anchoring sleeve 7 runs eccentrically or on a chord. It can be seen in which elastic deformation compared to the initial shape shown in FIG. 5, the sealing collar 11 can be applied to this wall surface 34 in order to ensure a tight and optically clean closure.

Claims (6)

1. Step iron anchor element which can be fastened in wall surfaces (34) and has an internal reinforcement (5) of metal, with at least one insert end (5a) and an anchor sleeve (7) of plastic which sits firmly on the insert end, said anchor sleeve having a frontal terminating cone (8), a central anchoring portion (10) which is a continuation of the terminating cone and is provided with transverse ribs (9), an elastic sealing collar (11) being arranged to be freely displaceable on the end of said anchor sleeve that is opposite the terminating cone (8), characterised in that
a) the end of the anchor sleeve (7) is provided with a series of adjacent, continuously encircling annular ribs (13, 18) and annular grooves which form retention members, and
b) the sealing collar (11) is a flexible elastomer collar which fits snugly on the annular ribs (13, 18) and on its inside face likewise has a series of annular ribs (15) which cooperate elastically with the annular ribs (13, 18) of the anchor sleeve (7) to form a sealing system of teeth.
2. Anchor element according to Claim 1, characterised in that the external diameter of the annular ribs (13, 18) is slightly greater than that of the neighbouring transverse ribs (9) of the anchoring portion (10), and in that when seen in axial section the annular ribs (13, 18) have a triangular profile which corresponds to the profile of the transverse ribs (9) of the anchoring portion (10).
3. Anchor element according to Claim 1, characterised in that two groups of annular ribs (13, 18) of different fineness are provided and that the external diameter of both groups is the same.
4. Anchor element according to Claim 1, characterised in that to the rear of the annular ribs (13, 18) the anchor sleeve (7) -viewed from the anchoring portion (10) - has a cylinder surface (28) whose diameter is substantially the same as the external diameter of the annular ribs (13, 18).
5. Anchor element according to Claim 1, wherein the internal reinforcement (5) comprises two parallel attachment legs (2, 3), each with an insert end (5a), and a central, crosswise oriented tread member (4), bent down at right angles to the attachment legs, and forms a stirrup covered with a protecting sheath (6) of plastic, an anchor sleeve being disposed on each insert end and the protecting sheath (6) and the anchor sleeves (7), apart from the sealing collar (11), being constructed as a one-piece protecting jacket (12) and surrounding the performed internal reinforcement, characterised in that the tread member (4) merges into the attachment legs (2,3) by way of a respective connecting arm (21, 22) which is aligned substantially vertically both on the attachment leg and on the tread member (4).
6. Anchor element according to Claim 5, characterised in that on the side remote from the anchor sleeves (7) there is formed on each connecting arm (21) a stop (23) parallel to said arm, said stop having a plane stop surface (25) which runs perpendicular to the axis of the leg and is flush with the stop surface of the stop (24) associated with the other connecting arm (22).
EP85110429A 1984-08-22 1985-08-20 Anchor element for the fastening of step irons in wall surfaces Expired EP0173227B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85110429T ATE40177T1 (en) 1984-08-22 1985-08-20 ANCHORING ELEMENT FOR MOUNTING CLIMBING DEVICES IN WALL SURFACES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3430848 1984-08-22
DE19843430848 DE3430848A1 (en) 1984-08-22 1984-08-22 STIRRUPS FOR FASTENING IN WALL AREAS

Publications (3)

Publication Number Publication Date
EP0173227A2 EP0173227A2 (en) 1986-03-05
EP0173227A3 EP0173227A3 (en) 1986-10-22
EP0173227B1 true EP0173227B1 (en) 1989-01-18

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ID=6243611

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85110429A Expired EP0173227B1 (en) 1984-08-22 1985-08-20 Anchor element for the fastening of step irons in wall surfaces

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EP (1) EP0173227B1 (en)
AT (1) ATE40177T1 (en)
DE (2) DE3430848A1 (en)

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Publication number Priority date Publication date Assignee Title
DE9016700U1 (en) * 1990-12-10 1991-02-28 Chemieschutz Gesellschaft für Säurebau mbH, 6140 Bensheim Installation aid for crampons
JP2622826B2 (en) 1995-05-22 1997-06-25 三山工業株式会社 Footwear for manholes
JP2747811B2 (en) * 1995-07-14 1998-05-06 三山工業株式会社 Footwear for manholes
JP2933218B1 (en) * 1998-09-09 1999-08-09 三山工業株式会社 Ladder with reflector
US6068083A (en) * 1999-03-19 2000-05-30 Miyama Kogyo Kabushiki Kaisha Foothold
US5967256A (en) * 1999-03-19 1999-10-19 Miyama Kogyo Kabushiki Kaisha Foothold
US6125967A (en) * 1999-04-30 2000-10-03 Miyama Kogyo Kabushiki Kaisha Foothold
US6588783B2 (en) * 2001-11-07 2003-07-08 Thomas Fichter Apparatus for assisting entry into high road clearance vehicles
US20080116652A1 (en) 2006-11-21 2008-05-22 Xtreme Metal Fab., Inc. Vehicle side step
US8448967B2 (en) 2010-01-25 2013-05-28 Xtreme Metal Fab., Inc. Vehicle side step
US8985606B2 (en) 2011-03-09 2015-03-24 Thomas Fichter Moveable step for assisting entry into vehicles
USD864069S1 (en) 2018-10-01 2019-10-22 N-Fab, Inc. Vehicle step assembly
USD864068S1 (en) 2018-10-01 2019-10-22 N-Fab, Inc. Running board

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Publication number Priority date Publication date Assignee Title
CH289007A (en) * 1950-12-04 1953-02-28 Zenhaeusern Heinrich Crampon.
CH505276A (en) * 1970-08-27 1971-03-31 Zenhaeusern Heinrich Access equipment anchored in masonry
AT315754B (en) * 1971-11-19 1974-06-10 Zenhaeusern Heinrich Holder for climbing elements or the like.

Also Published As

Publication number Publication date
DE3567693D1 (en) 1989-02-23
DE3430848A1 (en) 1986-03-06
EP0173227A3 (en) 1986-10-22
ATE40177T1 (en) 1989-02-15
EP0173227A2 (en) 1986-03-05

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