EP2899355A1 - Joint strip and method for its production - Google Patents

Joint strip and method for its production Download PDF

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Publication number
EP2899355A1
EP2899355A1 EP14152343.1A EP14152343A EP2899355A1 EP 2899355 A1 EP2899355 A1 EP 2899355A1 EP 14152343 A EP14152343 A EP 14152343A EP 2899355 A1 EP2899355 A1 EP 2899355A1
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EP
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Prior art keywords
sealing lip
plastic material
strip
last
joint
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EP14152343.1A
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German (de)
French (fr)
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EP2899355B1 (en
Inventor
Silvan Becker
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Weroform GmbH
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Weroform GmbH
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Priority to EP14152343.1A priority Critical patent/EP2899355B1/en
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    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B1/00—Border constructions of openings in walls, floors, or ceilings; Frames to be rigidly mounted in such openings
    • E06B1/62—Tightening or covering joints between the border of openings and the frame or between contiguous frames
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B1/00—Border constructions of openings in walls, floors, or ceilings; Frames to be rigidly mounted in such openings
    • E06B1/62—Tightening or covering joints between the border of openings and the frame or between contiguous frames
    • E06B2001/624—Tightening or covering joints between the border of openings and the frame or between contiguous frames with parts to be embedded in the stucco layer or otherwise linked to this layer

Definitions

  • the invention relates to a joint strip for arranging at a transition between a wall layer, in particular a plaster layer, and a building component, in particular a window or door frame, with a last body having a plant side for application to the building component and a connection side for connection to the wall layer , and a sealing lip, which is arranged along the contact side on the strip body and designed for sealing engagement with the building component, according to the preamble of claim 1.
  • the invention further relates to a method for producing a joint strip with a strip body, which has a plant side for application to the building component and a connection side for connection to a wall layer, and a sealing lip, which along the contact side arranged on the strip body and for sealing engagement with a Building component is formed, according to the preamble of claim 10.
  • joint strips are typically arranged at the transition between a plaster of a building wall and a window or door frame, or other building component. Between plaster and such building components, it may come to joints and cracks due to the different thermal expansion of the materials. To counteract this and to ensure a clean transition, joint strips are provided with a sealing lip at such locations, which rests against the visible side of the joint strip on the building component. The sealing lip thus prevents the penetration of moisture and dirt into the transition area between the building component and the plaster layer.
  • a closing strip known which has such a sealing lip.
  • this known end strip of the last body and the sealing lip of the same plastic material are formed. Since the strip body is due to the function of a dimensionally stable plastic material to manufacture, the sealing lip formed from the same plastic material has only limited flexibility. The sealing lip can thus follow changes in the joint thickness and joint changes, which can occur for example due to temperature changes, only limited.
  • From the EP 1 285 143 B1 is a generic profile strip, in which a last body is formed of a dimensionally stable plastic material and a sealing lip made of a softer plastic material is attached.
  • the sealing lip thus has a higher flexibility and can better adapt to changing joints. Overall, so an improved sealing function is achieved.
  • the protruding on the profile strip soft sealing lip is sensitive and can be deformed or damaged in particular during storage and transport of the profile strip in an undesirable manner. Moldings with damaged light lips are impaired in their sealing function and may need to be disposed of as scrap.
  • the invention has for its object to provide a joint strip with a sealing lip, which on the one hand ensures a good sealing function and on the other hand, especially in terms of storage and transport, is particularly robust.
  • a further object of the invention is to provide an efficient method for producing such a grooved strip.
  • the joint strip according to the invention is characterized in that the sealing lip is formed of a first dimensionally stable plastic material and that the sealing lip is connected to the last body via a joint portion which is flexible.
  • a first aspect of the invention is thus to form the sealing lip as well as the last body of dimensionally stable plastic material.
  • the sealing lip is not formed of a soft elastic plastic material, so that the risk of deformation or tearing of a soft sealing lip during storage, transport and processing is largely avoided.
  • the flexibility of the relatively rigid sealing lip is achieved according to a further aspect of the invention in that a flexible joint section is provided between the sealing lip and the last body. This allows a flexible, elastic and / or prestressed mounting of the sealing lip on the last body. This flexible and thus more sensitive joint portion is thus arranged protected between the dimensionally stable sealing lip and the dimensionally stable strip body, so that it is well protected despite its increased flexibility against interference from the outside.
  • the sealing lip is used primarily to protect against weathering, in particular UV radiation, which is harmful for a foam as a sealing element in the joint. In view of this protective effect against dust, water and / or light, the sealing lip may also be referred to as a protective lip.
  • a preferred embodiment of the invention is that the hinge portion is formed of a second soft elastic plastic material.
  • the joint portion is thus made of a different plastic material.
  • the joint portion may additionally or alternatively also be formed with a thickness range thinned in relation to the sealing lip, so that the flexibility achieved by this defined thin point is increased or further increased.
  • the joint strip which are preferably suitable for an extrusion process.
  • the first dimensionally stable plastic material is a rigid PVC and the second soft elastic plastic material is a soft PVC.
  • the sealing lip and the last body are formed from the same plastic material.
  • a desired bias of the sealing lip against the building component in a preferred manner can be achieved in that the sealing lip is arranged at an angle to the plant side.
  • the sealing lip is preferably arranged at an angle of greater than 90 ° relative to the lower contact side of the joint strip.
  • a sealing strip with adhesive surface for attachment to the building part is provided on the contact side of the strip body.
  • the sealing strip may in particular be a foamed sealing material, preferably a PE foam.
  • the sealing strip may be provided as a band material, which is glued to the contact side of the last body.
  • the adhesive surface for attachment to the building part can be protected by a cover, which is subtracted immediately before applying and sticking to the building part of the sealing strip.
  • a trigger web is arranged along a visible side of the last body.
  • the trigger bar can in particular form a trigger edge for the plaster.
  • trigger edges may be provided, which serve on the one hand for applying a reinforcing plaster and on the other for applying a final noble plaster.
  • the trigger web as well as the other webs of the strip body can be provided for improved connection with the plaster with grooves, grooves, projections, recesses or other form elements.
  • one or more webs may be provided with a fabric or mesh to ensure a large area connection with the plaster layer.
  • a detachable protective flap is provided on the last body in the region of the sealing lip.
  • the protective tab may be provided with a protective film or be designed for attachment of such a protective film. After completing the plastering work, the protective strip can be separated from the last body and loosened.
  • the protective tab is connected via a separable connection portion with the last body and that the separable connection portion is formed from the second soft elastic plastic material.
  • the connecting section could be formed by a simple wall thinning.
  • the inventive method is characterized in that the last body and the sealing lip are extruded from dimensionally stable plastic material and a hinge portion between the last body and the sealing lip is formed from a soft elastic plastic material by coextrusion.
  • a further development of the method according to the invention is that the last body is extruded with a removable protective tab and that by coextrusion between the protective tab and the last body a separable connection portion of soft elastic plastic material is formed.
  • the protective flap is also particularly flexible and can be easily adapted to different forms of a covered building component.
  • the connecting portion is particularly easily severable. The severing can be done depending on the selected wall thickness in the connecting section with a cutting tool or directly by hand.
  • a particularly economical process variant is achieved according to the invention in that the strip body and the sealing lip of the same first dimensionally stable plastic material and the hinge portion and the connecting portion are formed from the same second soft elastic plastic material.
  • the first dimensionally stable plastic material and the second soft elastic plastic material are used in the extrusion.
  • the dimensionally stable plastic material, such as rigid PVC also has some flexibility and elasticity, but which is significantly less than the flexibility and elasticity of the second soft elastic plastic material, such as soft PVC.
  • the joint portion and the connecting portion may be spaced from each other or formed in a manner favorable in terms of manufacturing technology.
  • An inventive grooved strip 10 shown in the figure has a last body 12.
  • the last body 12 comprises a lower, directed to the building component not shown investment web 14, to which at a connecting side 18 for connection to a plaster of a wall layer, a first grooming ridge 27, a second central Anputzsteg 28 and directed to a visible side 17 Abzugsssteg 26th are formed.
  • the trigger web 26 forms a rigid trigger edge along which the plaster can be removed.
  • a sealing strip 30 made of a foamed plastic material is attached, in particular adhesively bonded, to an installation side 16 of the last body 12 directed towards the building component.
  • the sealing strip 30 has an adhesive surface 32, which is covered by a, not shown, peelable protective film. After removal of the protective film, the joint strip 10 can be attached via the adhesive surface 32 to the building component, not shown, in particular a door or window stock.
  • the last body 12 is extruded from a first dimensionally stable plastic material, preferably rigid PVC.
  • a sealing lip 20 is arranged along the contact side 16 in the corner to the visible side 17, a sealing lip 20 is arranged.
  • the sealing lip 20, also called protective lip, is formed from the first dimensionally stable plastic material and has a tapered to the free end lip tip 22, which is formed bent at its free end.
  • the sealing lip 20 is extruded from the dimensionally stable plastic material via a strip-shaped hinge portion 24 on the last body 12.
  • the flexible, elastic hinge portion 24 is formed of a second soft elastic plastic material, preferably soft PVC, co-extrusion and thus provides a flexible hinge point for the relatively rigid sealing lip 20.
  • the sealing lip 20 protects the sealing strip 30 from external weathering, in particular UV radiation and to prevent entry of dust, water and / or light into the joint, to a harmful extent.
  • an arcuate protective flap 40 is extruded via a connecting portion 42.
  • the arcuate protection tab 40 is also formed from the first dimensionally stable plastic material, while for ease of severing the connection portion 42, this connection portion 42 is coextruded from the second flexible plastic material.
  • the protective flap 40 is used to attach a cover, not shown, which is used in particular the protection of the building component, ie a door or a window when plastering. After completion of the plaster work, the protective flap 40 along the separable connection portion 42 of the last body 12, for example by means of a cutting knife, are separated.

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)

Abstract

Die Erfindung betrifft eine Fugenleiste und ein Verfahren zum Herstellen einer Fugenleiste, welche für ein Anordnen an einem Übergang zwischen einer Wandschicht und einem Gebäudebauteil vorgesehen ist. Die Fugenleiste umfasst einen Leistengrundkörper der eine Anlageseite zum Anlegen an das Gebäudebauteil und eine Verbindungsseite zum Verbinden mit der Wandschicht aufweist, und eine Dichtlippe, welche entlang der Anlageseite an dem Leistengrundkörper angeordnet und zum dichtenden Anlegen an das Gebäudebauteil ausgebildet ist. Erfindungsgemäß ist vorgesehen, dass die Dichtlippe aus einem ersten formstabilen Kunststoffmaterial gebildet ist und dass die Dichtlippe mit dem Leistengrundkörper über einen Gelenkabschnitt verbunden ist, welcher flexibel ausgebildet ist.The invention relates to a joint strip and a method for producing a joint strip, which is provided for placing at a transition between a wall layer and a building component. The joint strip comprises a last body which has an abutment side for application to the building component and a connection side for connection to the wall layer, and a sealing lip which is arranged along the abutment side on the last body and is designed for sealing engagement with the building component. According to the invention it is provided that the sealing lip is formed from a first dimensionally stable plastic material and that the sealing lip is connected to the last body via a hinge portion which is flexible.

Description

Die Erfindung betrifft eine Fugenleiste zum Anordnen an einem Übergang zwischen einer Wandschicht, insbesondere einer Putzschicht, und einem Gebäudebauteil, insbesondere einem Fenster- oder Türstock, mit einem Leistengrundkörper, der eine Anlageseite zum Anlegen an das Gebäudebauteil und eine Verbindungsseite zum Verbinden mit der Wandschicht aufweist, und einer Dichtlippe, welche entlang der Anlageseite an dem Leistengrundkörper angeordnet und zum dichtenden Anlegen an das Gebäudebauteil ausgebildet ist, gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a joint strip for arranging at a transition between a wall layer, in particular a plaster layer, and a building component, in particular a window or door frame, with a last body having a plant side for application to the building component and a connection side for connection to the wall layer , and a sealing lip, which is arranged along the contact side on the strip body and designed for sealing engagement with the building component, according to the preamble of claim 1.

Die Erfindung betrifft weiterhin ein Verfahren zum Herstellen einer Fugenleiste mit einem Leistengrundkörper, der eine Anlageseite zum Anlegen an das Gebäudebauteil und eine Verbindungsseite zum Verbinden mit einer Wandschicht aufweist, und einer Dichtlippe, welche entlang der Anlageseite an dem Leistengrundkörper angeordnet und zum dichtenden Anlegen an ein Gebäudebauteil ausgebildet ist, gemäß dem Oberbegriff des Anspruchs 10.The invention further relates to a method for producing a joint strip with a strip body, which has a plant side for application to the building component and a connection side for connection to a wall layer, and a sealing lip, which along the contact side arranged on the strip body and for sealing engagement with a Building component is formed, according to the preamble of claim 10.

Derartige Fugenleisten werden typischerweise am Übergang zwischen einem Putz einer Gebäudewand und einem Fenster- oder Türstock, oder einem anderen Gebäudebauteil angeordnet. Zwischen Putz und derartigen Gebäudebauteilen kann es aufgrund der unterschiedlichen Wärmedehnungen der Materialien zu Fugen- und Rissbildungen kommen. Um dem entgegenzuwirken und einen sauberen Übergang zu gewährleisten, werden an derartigen Stellen Fugenleisten mit einer Dichtlippe vorgesehen, welche an der Sichtseite der Fugenleiste an dem Gebäudebauteil anliegt. Die Dichtlippe verhindert so das Eindringen von Feuchtigkeit und Schmutz in den Übergangsbereich zwischen Gebäudebauteil und Putzschicht.Such joint strips are typically arranged at the transition between a plaster of a building wall and a window or door frame, or other building component. Between plaster and such building components, it may come to joints and cracks due to the different thermal expansion of the materials. To counteract this and to ensure a clean transition, joint strips are provided with a sealing lip at such locations, which rests against the visible side of the joint strip on the building component. The sealing lip thus prevents the penetration of moisture and dirt into the transition area between the building component and the plaster layer.

Aus der DE 198 19 605 A1 ist eine Abschlussleiste bekannt, welche eine solche Dichtlippe aufweist. Bei dieser bekannten Abschlussleiste sind der Leistengrundkörper und die Dichtlippe aus demselben Kunststoffmaterial gebildet. Da der Leistengrundkörper funktionsbedingt aus einem formstabilen Kunststoffmaterial zu fertigen ist, hat auch die aus demselben Kunststoffmaterial gebildete Dichtlippe nur eine begrenzte Flexibilität. Die Dichtlippe kann somit Änderungen der Fugendicke und auch Fugenveränderungen, welche etwa durch Temperaturveränderungen auftreten können, nur eingeschränkt folgen.From the DE 198 19 605 A1 is a closing strip known, which has such a sealing lip. In this known end strip of the last body and the sealing lip of the same plastic material are formed. Since the strip body is due to the function of a dimensionally stable plastic material to manufacture, the sealing lip formed from the same plastic material has only limited flexibility. The sealing lip can thus follow changes in the joint thickness and joint changes, which can occur for example due to temperature changes, only limited.

Aus der EP 1 285 143 B1 geht eine gattungsgemäße Profilleiste hervor, bei welcher ein Leistengrundkörper aus einem formstabilen Kunststoffmaterial gebildet ist und eine Dichtlippe aus einem weicheren Kunststoffmaterial angebracht ist. Die Dichtlippe weist somit eine höhere Flexibilität auf und kann sich so ändernden Fugenverläufen besser anpassen. Insgesamt wird so also eine verbesserte Dichtfunktion erreicht.From the EP 1 285 143 B1 is a generic profile strip, in which a last body is formed of a dimensionally stable plastic material and a sealing lip made of a softer plastic material is attached. The sealing lip thus has a higher flexibility and can better adapt to changing joints. Overall, so an improved sealing function is achieved.

Allerdings ist die an der Profilleiste vorstehende weiche Dichtlippe empfindlich und kann insbesondere bei der Lagerung und beim Transport der Profilleiste in unerwünschter Weise verformt oder beschädigt werden. Profilleisten mit beschädigten Lichtlippen sind in ihrer Dichtfunktion beeinträchtigt und müssen gegebenenfalls als Ausschuss entsorgt werden.However, the protruding on the profile strip soft sealing lip is sensitive and can be deformed or damaged in particular during storage and transport of the profile strip in an undesirable manner. Moldings with damaged light lips are impaired in their sealing function and may need to be disposed of as scrap.

Der Erfindung liegt die Aufgabe zugrunde, eine Fugenleiste mit einer Dichtlippe anzugeben, welche einerseits eine gute Dichtfunktion sicherstellt und andererseits, insbesondere hinsichtlich Lagerung und Transport, besonders robust ist. Die Erfindung hat weiterhin die Aufgabe, ein effizientes Verfahren zum Herstellen einer derartigen Fugenleiste bereitzustellen.The invention has for its object to provide a joint strip with a sealing lip, which on the one hand ensures a good sealing function and on the other hand, especially in terms of storage and transport, is particularly robust. A further object of the invention is to provide an efficient method for producing such a grooved strip.

Die Aufgabe wird zum einen durch eine Fugenleiste mit dem Merkmalen des Anspruchs 1 und zum anderen durch ein Verfahren mit den Merkmalen des Anspruchs 10 gelöst. Bevorzugte Ausgestaltungen der Erfindung sind in den jeweils abhängigen Ansprüchen angegeben.The object is achieved on the one hand by a joint strip with the features of claim 1 and on the other hand by a method having the features of claim 10. Preferred embodiments of the invention are specified in the respective dependent claims.

Die erfindungsgemäße Fugenleiste ist dadurch gekennzeichnet, dass die Dichtlippe aus einem ersten formstabilen Kunststoffmaterial gebildet ist und dass die Dichtlippe mit dem Leistengrundkörper über einen Gelenkabschnitt verbunden ist, welcher flexibel ausgebildet ist.The joint strip according to the invention is characterized in that the sealing lip is formed of a first dimensionally stable plastic material and that the sealing lip is connected to the last body via a joint portion which is flexible.

Ein erster Aspekt der Erfindung besteht also darin, die Dichtlippe genauso wie den Leistengrundkörper aus formstabilem Kunststoffmaterial zu bilden. Die Dichtlippe wird nicht aus einem weichelastischen Kunststoffmaterial gebildet, so dass die Gefahr eines Verformens oder Einreißens einer weichen Dichtlippe bei Lagerung, Transport und Verarbeitung in hohem Maße vermieden ist.A first aspect of the invention is thus to form the sealing lip as well as the last body of dimensionally stable plastic material. The sealing lip is not formed of a soft elastic plastic material, so that the risk of deformation or tearing of a soft sealing lip during storage, transport and processing is largely avoided.

Die Flexibilität der relativ starren Dichtlippe wird gemäß einem weiteren Aspekt der Erfindung dadurch erreicht, dass zwischen der Dichtlippe und dem Leistengrundkörper ein flexibler Gelenkabschnitt vorgesehen ist. Dieser erlaubt eine flexible, elastische und/oder vorgespannte Lagerung der Dichtlippe am Leistengrundkörper. Dieser flexiblere und damit empfindlichere Gelenkabschnitt ist also zwischen der formstabileren Dichtlippe und dem formstabileren Leistengrundkörper geschützt angeordnet, so dass dieser trotz seiner erhöhten Flexibilität gegen Beeinträchtigung von außen gut geschützt ist.The flexibility of the relatively rigid sealing lip is achieved according to a further aspect of the invention in that a flexible joint section is provided between the sealing lip and the last body. This allows a flexible, elastic and / or prestressed mounting of the sealing lip on the last body. This flexible and thus more sensitive joint portion is thus arranged protected between the dimensionally stable sealing lip and the dimensionally stable strip body, so that it is well protected despite its increased flexibility against interference from the outside.

Die Dichtlippe dient maßgeblich dem Schutz vor Witterungseinflüssen, insbesondere auch UV-Strahlung, welche etwa für einen Schaumstoff als Abdichtelement in der Fuge schädlich ist. Im Hinblick auf diese Schutzwirkung gegen Staub, Wasser und/oder Licht kann die Dichtlippe auch als Schutzlippe bezeichnet werden.The sealing lip is used primarily to protect against weathering, in particular UV radiation, which is harmful for a foam as a sealing element in the joint. In view of this protective effect against dust, water and / or light, the sealing lip may also be referred to as a protective lip.

Eine bevorzugte Ausführungsform der Erfindung besteht darin, dass der Gelenkabschnitt aus einem zweiten weichelastischen Kunststoffmaterial gebildet ist. Der Gelenkabschnitt wird also aus einem unterschiedlichen Kunststoffmaterial hergestellt. Der Gelenkabschnitt kann dabei zusätzlich oder alternativ auch mit einem gegenüber der Dichtlippe verdünnten Dickenbereich ausgebildet sein, so dass durch diese definierte Dünnstelle die Flexibilität erreicht oder weiter erhöht wird.A preferred embodiment of the invention is that the hinge portion is formed of a second soft elastic plastic material. The joint portion is thus made of a different plastic material. The joint portion may additionally or alternatively also be formed with a thickness range thinned in relation to the sealing lip, so that the flexibility achieved by this defined thin point is increased or further increased.

Grundsätzlich können zur Herstellung der Fugenleiste verschiedenste geeignete Kunststoffmaterialien eingesetzt werden, welche vorzugsweise für ein Extrusionsverfahren geeignet sind. Als eine besonders vorteilhafte Materialwahl ist es nach der Erfindung vorgesehen, dass das erste formstabile Kunststoffmaterial ein Hart-PVC und das zweite weichelastische Kunststoffmaterial ein Weich-PVC ist.In principle, a wide variety of suitable plastic materials can be used for producing the joint strip, which are preferably suitable for an extrusion process. As a particularly advantageous choice of material, it is provided according to the invention that the first dimensionally stable plastic material is a rigid PVC and the second soft elastic plastic material is a soft PVC.

Grundsätzlich können für die einzelnen Abschnitte der Fugenleiste jeweils unterschiedliche Kunststoffmaterialien zum Einsatz kommen. Aus fertigungstechnischer Sicht ist es bevorzugt, dass die Dichtlippe und der Leistengrundkörper aus dem gleichen Kunststoffmaterial gebildet sind. Beim Einbau der Fugenleiste kann eine gewünschte Vorspannung der Dichtlippe gegen das Gebäudebauteil in bevorzugter Weise dadurch erreicht werden, dass die Dichtlippe angewinkelt zur Anlageseite angeordnet ist. Die Dichtlippe ist dabei vorzugsweise in einem Winkel von größer 90° gegenüber der unteren Anlageseite der Fugenleiste angeordnet.In principle, different plastic materials can be used for the individual sections of the joint strip. From a production point of view, it is preferred that the sealing lip and the last body are formed from the same plastic material. When installing the joint strip a desired bias of the sealing lip against the building component in a preferred manner can be achieved in that the sealing lip is arranged at an angle to the plant side. The sealing lip is preferably arranged at an angle of greater than 90 ° relative to the lower contact side of the joint strip.

Für eine gute Abdichtung bei gleichzeitiger Kompensation von Spaltänderungen ist es nach einer weiteren Ausführungsform der Erfindung vorteilhaft, dass an der Anlageseite des Leistengrundkörpers ein Abdichtstreifen mit Klebefläche zum Anbringen auf dem Gebäudeteil vorgesehen ist. Der Abdichtstreifen kann insbesondere ein geschäumtes Dichtmaterial, vorzugsweise ein PE-Schaum, sein. Der Abdichtstreifen kann als ein Bandmaterial vorgesehen sein, welches an der Anlageseite des Leistengrundkörpers aufgeklebt ist. Die Klebefläche zum Anbringen an dem Gebäudeteil kann über eine Abdeckfolie geschützt sein, welche unmittelbar vor Aufbringen und Aufkleben auf das Gebäudeteil vom Abdichtstreifen abgezogen wird.For a good seal with simultaneous compensation of gap changes, it is advantageous according to a further embodiment of the invention that a sealing strip with adhesive surface for attachment to the building part is provided on the contact side of the strip body. The sealing strip may in particular be a foamed sealing material, preferably a PE foam. The sealing strip may be provided as a band material, which is glued to the contact side of the last body. The adhesive surface for attachment to the building part can be protected by a cover, which is subtracted immediately before applying and sticking to the building part of the sealing strip.

Weiterhin ist es nach einer Variante der Erfindung vorteilhaft, dass entlang einer Sichtseite des Leistengrundkörpers ein Abzugssteg angeordnet ist. Der Abzugssteg kann insbesondere eine Abzugskante für den Putz bilden. Am Abzugssteg können auch mehrere, insbesondere zwei, Abzugskanten vorgesehen sein, welche zum einen zum Aufbringen eines Armierungsputzes und zum anderen zum Aufbringen eines abschließenden Edelputzes dienen. Der Abzugssteg sowie auch die weiteren Stege des Leistengrundkörpers können für eine verbesserte Verbindung mit dem Putz mit Nuten, Rillen, Vorsprüngen, Ausnehmungen oder anderen Formelementen versehen sein. Auch können ein oder mehrere Stege mit einem Gewebe oder Netz versehen sein, um eine großflächige Verbindung mit der Putzschicht zu gewährleisten.Furthermore, it is advantageous according to a variant of the invention that a trigger web is arranged along a visible side of the last body. The trigger bar can in particular form a trigger edge for the plaster. At the trigger web also several, in particular two, trigger edges may be provided, which serve on the one hand for applying a reinforcing plaster and on the other for applying a final noble plaster. The trigger web as well as the other webs of the strip body can be provided for improved connection with the plaster with grooves, grooves, projections, recesses or other form elements. Also, one or more webs may be provided with a fabric or mesh to ensure a large area connection with the plaster layer.

Zum Schutz der Dichtlippe sowie des Gebäudebauteiles beim Verputzen ist es nach einer weiteren Ausführung der erfindungsgemäßen Fugenleiste vorteilhaft, dass an dem Leistengrundkörper im Bereich der Dichtlippe eine abtrennbare Schutzlasche vorgesehen ist. Die Schutzlasche kann mit einer Schutzfolie versehen oder zur Anbringung einer derartigen Schutzfolie ausgebildet sein. Nach Abschluss der Putzarbeiten kann die Schutzlasche vom Leistengrundkörper abgetrennt und gelöst werden.To protect the sealing lip and the building component during plastering, it is advantageous for a further embodiment of the joint strip according to the invention that on the last body in the region of the sealing lip a detachable protective flap is provided. The protective tab may be provided with a protective film or be designed for attachment of such a protective film. After completing the plastering work, the protective strip can be separated from the last body and loosened.

Dabei ist es nach einer Weiterbildung der Erfindung besonders vorteilhaft, dass die Schutzlasche über einen trennbaren Verbindungsabschnitt mit dem Leistengrundkörper verbunden ist und dass der trennbare Verbindungsabschnitt aus dem zweiten weichelastischen Kunststoffmaterial gebildet ist. Grundsätzlich könnte der Verbindungsabschnitt durch eine einfache Wandverdünnung gebildet sein. Durch die Verwendung des zweiten weichelastischen Kunststoffmateriales für den Verbindungsabschnitt kann dieser besonders leicht, etwa durch ein Messer, durchtrennt werden. Dies erlaubt ein einfaches und sauberes Abtrennen der Schutzlasche vom Leistengrundkörper.It is particularly advantageous according to a development of the invention that the protective tab is connected via a separable connection portion with the last body and that the separable connection portion is formed from the second soft elastic plastic material. In principle, the connecting section could be formed by a simple wall thinning. By using the second soft-elastic plastic material for the connecting portion of this can be particularly easily, for example, cut through a knife. This allows a simple and clean separation of the protective strap from the last body.

Das erfindungsgemäße Verfahren ist dadurch gekennzeichnet, dass der Leistengrundkörper und die Dichtlippe aus formstabilem Kunststoffmaterial extrudiert werden und ein Gelenkabschnitt zwischen dem Leistengrundkörper und der Dichtlippe aus einem weichelastischen Kunststoffmaterial durch Koextrudieren gebildet wird. Durch dieses Verfahren kann insbesondere die zuvor beschriebene Fugenleiste in wirtschaftlicher Weise auf einer Extrusionsmaschine hergestellt werden.The inventive method is characterized in that the last body and the sealing lip are extruded from dimensionally stable plastic material and a hinge portion between the last body and the sealing lip is formed from a soft elastic plastic material by coextrusion. By this method, in particular the above-described joint strip can be produced in an economical manner on an extrusion machine.

Eine Weiterbildung des erfindungsgemäßen Verfahrens besteht darin, dass der Leistengrundkörper mit einer abtrennbaren Schutzlasche extrudiert wird und dass durch Koextrudieren zwischen der Schutzlasche und dem Leistengrundkörper ein trennbarer Verbindungsabschnitt aus weichelastischem Kunststoffmaterial gebildet wird. Hierdurch ist die Schutzlasche ebenfalls besonders flexibel und kann leicht an unterschiedliche Formen eines abzudeckenden Gebäudebauteiles angepasst werden. Durch die Verwendung eines weichelastischen Kunststoffmateriales ist der Verbindungsabschnitt besonders leicht durchtrennbar. Das Durchtrennen kann dabei abhängig von der gewählten Wanddicke im Verbindungsabschnitt mit einem Schneidwerkzeug oder unmittelbar von Hand erfolgen.A further development of the method according to the invention is that the last body is extruded with a removable protective tab and that by coextrusion between the protective tab and the last body a separable connection portion of soft elastic plastic material is formed. As a result, the protective flap is also particularly flexible and can be easily adapted to different forms of a covered building component. By using a soft elastic plastic material, the connecting portion is particularly easily severable. The severing can be done depending on the selected wall thickness in the connecting section with a cutting tool or directly by hand.

Eine besonders wirtschaftliche Verfahrensvariante wird nach der Erfindung dadurch erreicht, dass der Leistengrundkörper und die Dichtlippe aus dem gleichen ersten formstabilen Kunststoffmaterial und der Gelenkabschnitt und der Verbindungsabschnitt aus dem gleichen zweiten weichelastischen Kunststoffmaterial gebildet werden. Für die Herstellung der Fugenleiste werden also bei der Extrusion nur zwei unterschiedliche Kunststoffmaterialien, nämlich das erste formstabile Kunststoffmaterial und das zweite weichelastische Kunststoffmaterial verwendet. Es ist darauf hinzuweisen, dass die Begriffe formstabiles Kunststoffmaterial und weichelastisches Kunststoffmaterial in ihren Eigenschaften relativ zueinander zu verstehen sind. Das formstabile Kunststoffmaterial, wie etwa Hart-PVC, weist auch eine gewisse Flexibilität und Elastizität auf, welche jedoch merklich geringer ist als die Flexibilität und Elastizität des zweiten weichelastischen Kunststoffmateriales, wie etwa Weich-PVC. Der Gelenkabschnitt und der Verbindungsabschnitt können beabstandet zueinander oder in fertigungstechnisch günstiger Weise zusammenhängend ausgebildet sein.A particularly economical process variant is achieved according to the invention in that the strip body and the sealing lip of the same first dimensionally stable plastic material and the hinge portion and the connecting portion are formed from the same second soft elastic plastic material. For the production of the grooved bar so only two different plastic materials, namely the first dimensionally stable plastic material and the second soft elastic plastic material are used in the extrusion. It should be noted that the terms dimensionally stable plastic material and soft elastic plastic material are to be understood in their properties relative to each other. The dimensionally stable plastic material, such as rigid PVC, also has some flexibility and elasticity, but which is significantly less than the flexibility and elasticity of the second soft elastic plastic material, such as soft PVC. The joint portion and the connecting portion may be spaced from each other or formed in a manner favorable in terms of manufacturing technology.

Die Erfindung wird nachfolgend anhand eines bevorzugten Ausführungsbeispieles weiter beschrieben, welches in der einzigen Figur dargestellt ist.The invention will be further described with reference to a preferred embodiment, which is shown in the single figure.

Eine in der Figur dargestellte erfindungsgemäße Fugenleiste 10 weist einen Leistengrundkörper 12 auf. Der Leistengrundkörper 12 umfasst dabei einen unteren, zum nicht dargestellten Gebäudebauteil gerichteten Anlagesteg 14 auf, an welchen sich an einer Verbindungsseite 18 zur Verbindung mit einem Putz einer Wandschicht ein erster Anputzsteg 27, ein zweiter mittiger Anputzsteg 28 sowie ein zu einer Sichtseite 17 gerichteter Abzugssteg 26 ausgebildet sind. Der Abzugssteg 26 bildet eine starre Abzugskante, entlang welcher der Putz abgezogen werden kann.An inventive grooved strip 10 shown in the figure has a last body 12. The last body 12 comprises a lower, directed to the building component not shown investment web 14, to which at a connecting side 18 for connection to a plaster of a wall layer, a first grooming ridge 27, a second central Anputzsteg 28 and directed to a visible side 17 Abzugsssteg 26th are formed. The trigger web 26 forms a rigid trigger edge along which the plaster can be removed.

An einer zum Gebäudebauteil gerichteten Anlageseite 16 des Leistengrundkörpers 12 ist ein Abdichtstreifen 30 aus einem geschäumten Kunststoffmaterial angebracht, insbesondere aufgeklebt. Der Abdichtstreifen 30 weist eine Klebefläche 32 auf, welche durch eine nicht dargestellte, abziehbare Schutzfolie abgedeckt ist. Nach Abziehen der Schutzfolie kann die Fugenleiste 10 über die Klebefläche 32 an dem nicht dargestellten Gebäudebauteil, insbesondere einem Tür- oder Fensterstock, angebracht werden.A sealing strip 30 made of a foamed plastic material is attached, in particular adhesively bonded, to an installation side 16 of the last body 12 directed towards the building component. The sealing strip 30 has an adhesive surface 32, which is covered by a, not shown, peelable protective film. After removal of the protective film, the joint strip 10 can be attached via the adhesive surface 32 to the building component, not shown, in particular a door or window stock.

Der Leistengrundkörper 12 ist aus einem ersten formstabilen Kunststoffmaterial, vorzugsweise Hart-PVC, extrudiert. Entlang der Anlageseite 16 im Eckbereich zur Sichtseite 17 ist eine Dichtlippe 20 angeordnet. Die Dichtlippe 20, auch Schutzlippe genannt, ist aus dem ersten formstabilen Kunststoffmaterial gebildet und weist eine sich zum freien Ende verjüngende Lippenspitze 22 auf, welche an ihrem freien Ende gebogen ausgebildet ist.The last body 12 is extruded from a first dimensionally stable plastic material, preferably rigid PVC. Along the contact side 16 in the corner to the visible side 17, a sealing lip 20 is arranged. The sealing lip 20, also called protective lip, is formed from the first dimensionally stable plastic material and has a tapered to the free end lip tip 22, which is formed bent at its free end.

Damit die Lippenspitze 22 der Dichtlippe 20 unter einer elastischen Vorspannung an einer Außenseite des Gebäudebauteiles zur Anlage kommt, ist die Dichtlippe 20 aus dem formstabilen Kunststoffmaterial über einen streifenförmigen Gelenkabschnitt 24 an dem Leistengrundkörper 12 anextrudiert. Der flexible, elastische Gelenkabschnitt 24 ist aus einem zweiten weichelastischen Kunststoffmaterial, vorzugsweise Weich-PVC, im Koextrusionsverfahren ausgebildet und stellt so eine flexible Gelenkstelle für die relativ starre Dichtlippe 20 dar. Die Dichtlippe 20 schützt den Abdichtstreifen 30 vor äußeren Witterungseinflüssen, insbesondere UV-Strahlung und soll Eintritt von Staub, Wasser und/oder Licht in die Fuge, in schädlichem Umfang, verhindern.So that the lip tip 22 of the sealing lip 20 comes to rest under an elastic bias on an outer side of the building component, the sealing lip 20 is extruded from the dimensionally stable plastic material via a strip-shaped hinge portion 24 on the last body 12. The flexible, elastic hinge portion 24 is formed of a second soft elastic plastic material, preferably soft PVC, co-extrusion and thus provides a flexible hinge point for the relatively rigid sealing lip 20. The sealing lip 20 protects the sealing strip 30 from external weathering, in particular UV radiation and to prevent entry of dust, water and / or light into the joint, to a harmful extent.

An der Sichtseite 17 des Abzugssteges 26 ist eine bogenförmige Schutzlasche 40 über einen Verbindungsabschnitt 42 anextrudiert. Gemäß der Erfindung ist bei dem dargestellten Ausführungsbeispiel die bogenförmige Schutzlasche 40 ebenfalls aus dem ersten formstabilen Kunststoffmaterial gebildet, während für ein leichtes Durchtrennen des Verbindungsabschnittes 42 dieser Verbindungsabschnitt 42 aus dem zweiten weichelastischen Kunststoffmaterial koextrudiert ist.On the visible side 17 of the trigger web 26 an arcuate protective flap 40 is extruded via a connecting portion 42. According to the invention, in the illustrated embodiment, the arcuate protection tab 40 is also formed from the first dimensionally stable plastic material, while for ease of severing the connection portion 42, this connection portion 42 is coextruded from the second flexible plastic material.

Die Schutzlasche 40 dient zur Befestigung einer nicht dargestellten Abdeckfolie, welche insbesondere dem Schutz des Gebäudebauteiles, also einer Tür oder eines Fensters, beim Verputzen dient. Nach Abschluss der Verputzungsarbeiten kann die Schutzlasche 40 entlang des trennbaren Verbindungsabschnittes 42 vom Leistengrundkörper 12, etwa mittels eines Schneidmessers, abgetrennt werden.The protective flap 40 is used to attach a cover, not shown, which is used in particular the protection of the building component, ie a door or a window when plastering. After completion of the plaster work, the protective flap 40 along the separable connection portion 42 of the last body 12, for example by means of a cutting knife, are separated.

Claims (12)

Fugenleiste zum Anordnen an einem Übergang zwischen einer Wandschicht, insbesondere einer Putzschicht, und einem Gebäudebauteil, insbesondere einem Fenster- oder Türstock, mit - einem Leistengrundkörper (12), der eine Anlageseite (16) zum Anlegen an das Gebäudebauteil und eine Verbindungsseite (18) zum Verbinden mit der Wandschicht aufweist, und - einer Dichtlippe (20), welche entlang der Anlageseite (16) an dem Leistengrundkörper (12) angeordnet und zum Anlegen an das Gebäudebauteil ausgebildet ist,
dadurch gekennzeichnet, - dass die Dichtlippe (20) aus einem ersten formstabilen Kunststoffmaterial gebildet ist und - dass die Dichtlippe (20) mit dem Leistengrundkörper (12) über einen Gelenkabschnitt (24) verbunden ist, welcher flexibel ausgebildet ist. Joint strip for arranging at a transition between a wall layer, in particular a plaster layer, and a building component, in particular a window or door frame, with - A last body (12) having an abutment side (16) for application to the building component and a connection side (18) for connection to the wall layer, and a sealing lip (20) which is arranged along the abutment side (16) on the last body (12) and is designed to be applied to the building component,
characterized, - That the sealing lip (20) is formed of a first dimensionally stable plastic material and - That the sealing lip (20) with the last body (12) via a hinge portion (24) is connected, which is flexible. Fugenleiste nach Anspruch 1,
dadurch gekennzeichnet,
dass der Gelenkabschnitt (24) aus einem zweiten weichelastischen Kunststoffmaterial gebildet ist.Grout bar according to claim 1,
characterized,
that the hinge portion (24) is formed from a second soft-elastic plastic material. Fugenleiste nach Anspruch 2,
dadurch gekennzeichnet,
dass das erste formstabile Kunststoffmaterial ein Hart-PVC und das zweite weichelastische Kunststoffmaterial ein Weich-PVC ist.Joint strip according to claim 2,
characterized,
that the first dimensionally stable plastic material is a rigid PVC and the second soft elastic plastic material is a soft PVC. Fugenleiste nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet,
dass die Dichtlippe (20) und der Leistengrundkörper (12) aus dem gleichen Kunststoffmaterial gebildet sind.Joint molding according to one of claims 1 to 3,
characterized,
that the sealing lip (20) and the strip body (12) made of the same plastics material are formed. Fugenleiste nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet,
dass die Dichtlippe (20) angewinkelt zur Anlageseite (16) angeordnet ist.Joint molding according to one of claims 1 to 4,
characterized,
that the sealing lip (20) angled to the contact side (16) is arranged. Fugenleiste nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet,
dass an der Anlageseite (16) des Leistengrundkörpers (12) ein Abdichtstreifen (30) mit Klebefläche (32) zum Anbringen auf dem Gebäudebauteil vorgesehen ist.Joint molding according to one of claims 1 to 5,
characterized,
that is provided for mounting on the building member on the contact side (16) of the strip base body (12) a sealing strip (30) having an adhesive surface (32). Fugenleiste nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet,
dass entlang einer Sichtseite (17) des Leistengrundkörpers (12) ein Abzugssteg (26) angeordnet ist.Grout bar according to one of claims 1 to 6,
characterized,
in that a trigger web (26) is arranged along a visible side (17) of the last body (12). Fugenleiste nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet,
dass an dem Leistengrundkörper (12) im Bereich der Dichtlippe (20) eine abtrennbare Schutzlasche (40) vorgesehen ist.Grout bar according to one of claims 1 to 7,
characterized,
in that a detachable protective flap (40) is provided on the last body (12) in the region of the sealing lip (20). Fugenleiste nach Anspruch 8,
dadurch gekennzeichnet,
dass die Schutzlasche (40) über einen trennbaren Verbindungsabschnitt (42) mit dem Leistengrundkörper (12) verbunden ist und
dass der trennbare Verbindungsabschnitt (42) aus dem zweiten weichelastischen Kunststoffmaterial gebildet ist.Grout bar according to claim 8,
characterized,
that the protective flap (40) by a breakable connecting portion (42) connected to the strip base body (12) and
in that the separable connection section (42) is formed from the second soft-elastic plastic material. Verfahren zum Herstellen einer Fugenleiste (10), insbesondere nach einem der Ansprüche 1 bis 9, mit - einem Leistengrundkörper (12), der eine Anlageseite (16) zum Anlegen an ein Gebäudebauteil und eine Verbindungsseite (18) zum Verbinden mit einer Wandschicht aufweist, und - einer Dichtlippe (20), welche entlang der Anlageseite (16) an dem Leistengrundkörper (12) angeordnet und zum dichtenden Anlegen an das Gebäudebauteil ausgebildet ist, dadurch gekennzeichnet,
dass der Leistengrundkörper (12) und die Dichtlippe (20) aus formstabilem Kunststoffmaterial extrudiert werden und ein Gelenkabschnitt (24) zwischen dem Leistengrundkörper (12) und der Dichtlippe (20) aus einem weichelastischen Kunststoffmaterial durch Koextrudieren gebildet wird.A method for producing a joint strip (10), in particular according to one of claims 1 to 9, with - A last body (12) having an abutment side (16) for application to a building component and a connecting side (18) for connection to a wall layer, and a sealing lip (20) which is arranged along the abutment side (16) on the last body (12) and is designed for sealing engagement with the building component, characterized,
in that the last base body (12) and the sealing lip (20) are extruded from dimensionally stable plastic material and a joint portion (24) between the last base body (12) and the sealing lip (20) is formed from a flexible plastic material by coextrusion. Verfahren nach Anspruch 10,
dadurch gekennzeichnet,
dass der Leistengrundkörper (12) mit einer abtrennbaren Schutzlasche (40) extrudiert wird und
dass durch Koextrudieren zwischen der Schutzlasche (40) und dem Leistengrundkörper (12) ein trennbarer Verbindungsabschnitt (42) aus weichelastischem Kunststoffmaterial gebildet wird.Method according to claim 10,
characterized,
in that the strip body (12) is extruded with a detachable protective flap (40) and
in that a separable connection section (42) made of flexible plastic material is formed by co-extruding between the protective strip (40) and the last body (12). Verfahren nach Anspruch 10 oder 11,
dadurch gekennzeichnet,
dass der Leistengrundkörper (12) und die Dichtlippe (20) aus dem gleichen ersten formstabilen Kunststoffmaterial und der Gelenkabschnitt (24) und der Verbindungsabschnitt (42) aus dem gleichen zweiten weichelastischen Kunststoffmaterial gebildet werden.Method according to claim 10 or 11,
characterized,
in that the last base body (12) and the sealing lip (20) of the same first dimensionally stable plastic material and the hinge portion (24) and the connecting portion (42) are formed from the same second flexible plastic material.
EP14152343.1A 2014-01-23 2014-01-23 Joint strip and method for its production Revoked EP2899355B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3179024A1 (en) * 2015-12-09 2017-06-14 Roman Zahner Connecting moulded part, in particular embrasure connecting moulded part
CN109537746A (en) * 2018-12-27 2019-03-29 上海建工五建集团有限公司 Assembled architecture component piece scissors divide storehouse plugging construction tool and its method

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DE19819605A1 (en) 1998-05-02 1999-11-04 Maisch F Protektorwerk Seal between window frame and soffit
DE20107557U1 (en) * 2001-04-30 2001-08-02 Lorentz, Doris, 66333 Völklingen Cleaning bar for the wall cleaning process in the reveal area
EP1285143B1 (en) 2000-05-16 2003-08-06 Konrad Lehrhuber Shaped bar for establishing a junction between a structural member and a building surface
DE202005006102U1 (en) * 2005-04-16 2005-08-18 Beck, Walter, Dipl.-Ing. Expansion joint sealing device, comprises profiled strip held in place by elastic spacer part
EP2492428A2 (en) * 2011-02-25 2012-08-29 August Braun Staff angle and building corner with staff angle

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DE202004017341U1 (en) 2004-11-08 2005-01-20 Beck, Walter, Dipl.-Ing. Profile strip for making a transition between a component and a building surface

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19819605A1 (en) 1998-05-02 1999-11-04 Maisch F Protektorwerk Seal between window frame and soffit
EP1285143B1 (en) 2000-05-16 2003-08-06 Konrad Lehrhuber Shaped bar for establishing a junction between a structural member and a building surface
DE20107557U1 (en) * 2001-04-30 2001-08-02 Lorentz, Doris, 66333 Völklingen Cleaning bar for the wall cleaning process in the reveal area
DE202005006102U1 (en) * 2005-04-16 2005-08-18 Beck, Walter, Dipl.-Ing. Expansion joint sealing device, comprises profiled strip held in place by elastic spacer part
EP2492428A2 (en) * 2011-02-25 2012-08-29 August Braun Staff angle and building corner with staff angle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3179024A1 (en) * 2015-12-09 2017-06-14 Roman Zahner Connecting moulded part, in particular embrasure connecting moulded part
CN109537746A (en) * 2018-12-27 2019-03-29 上海建工五建集团有限公司 Assembled architecture component piece scissors divide storehouse plugging construction tool and its method
CN109537746B (en) * 2018-12-27 2024-04-02 上海建工五建集团有限公司 Assembled building component joint shear type separate bin plugging construction tool and method thereof

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