WO1996035033A1 - Dispositif de coffrage - Google Patents

Dispositif de coffrage Download PDF

Info

Publication number
WO1996035033A1
WO1996035033A1 PCT/DE1995/000568 DE9500568W WO9635033A1 WO 1996035033 A1 WO1996035033 A1 WO 1996035033A1 DE 9500568 W DE9500568 W DE 9500568W WO 9635033 A1 WO9635033 A1 WO 9635033A1
Authority
WO
WIPO (PCT)
Prior art keywords
formwork
support
formwork panel
cross
support arms
Prior art date
Application number
PCT/DE1995/000568
Other languages
German (de)
English (en)
Inventor
Tobias Erz
Original Assignee
Tobias Erz
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tobias Erz filed Critical Tobias Erz
Priority to PCT/DE1995/000568 priority Critical patent/WO1996035033A1/fr
Publication of WO1996035033A1 publication Critical patent/WO1996035033A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/14—Conveying or assembling building elements
    • E04G21/16—Tools or apparatus
    • E04G21/18—Adjusting tools; Templates
    • E04G21/1841—Means for positioning building parts or elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/14—Conveying or assembling building elements
    • E04G21/16—Tools or apparatus
    • E04G21/18—Adjusting tools; Templates
    • E04G21/1841—Means for positioning building parts or elements
    • E04G21/1858—Templates for window or door openings, e.g. in a masonry wall
    • E04G21/1866—Templates for window or door openings, e.g. in a masonry wall for making arches

Definitions

  • the invention is based on a formwork device, in particular for creating arched lintels in doors and windows according to the preamble of the main claim.
  • a considerable amount of formwork is required in the production of arched sills.
  • a wooden structure is created, which is covered by a formwork panel on the concrete side and this formwork panel is supported downwards by segments sawn out of panels.
  • This type of formwork is so-called lost formwork, ie after the concrete has dried, the formwork is broken up, with only a few parts being used again can be.
  • This type of vaulting is not only costly in terms of the cost of materials, but also in terms of time. This is especially true when there are a large number of vaults to be produced in this way, possibly with different dimensions.
  • a known formwork device (DE-GM 92 11 195) consists of a plurality of superimposed slats as a formwork panel and a mechanical tensioning element by means of which the slats are held in the curved position.
  • This formwork device has the disadvantage that it is no less expensive than the usual wooden construction, and an additional substructure is always required to keep this arch element in its working position.
  • cross beams are arranged under the curved formwork panel according to the expected load from the concrete, which are designed as truss girders and rest on support arms, which are designed as threaded bolts with connecting straps are bt.
  • Such a formwork device can be reused after disassembly and cleaning, but it is extremely expensive, especially with regard to its assembly. An additional substructure towards the floor is also required here.
  • the inventive device has the characterizing features of the main claim in contrast, the advantage that the curvature of the formwork panel can be changed by simply adjusting the support arms, which is advantageous both during assembly and during disassembly.
  • the chal device has its own substructure, which can have one or more central supports and can be supported on the floor or a window sill or a lower limit of a window opening, there is a large degree of independence from the position of the vertical opening limit of the opening to be arched , since in contrast to such formwork devices which must rest on the side posts, the load is carried from the substructure to the floor in the formwork device according to the invention.
  • the formwork panel preferably having the width of the lintel to be created, so that the side panels can be attached to both sides of the formwork panel and perpendicularly to it.
  • a formwork device can advantageously also be used for the production of a vault in which several such formwork devices are provided next to each other and further formwork panels forming the actual formwork are placed on the associated formwork panels. With a certain width of the associated formwork panels, they can also be arranged next to one another in an abutting manner and serve directly for the formwork.
  • the individual formwork devices can be adapted to the same curvature the length adjustment of the support arms can be made easily.
  • the formwork device can also be used for (simpler) cork floors.
  • the sheet is pressed down in the middle and the outer support arms are brought up.
  • the outer support arms support the formwork sheet and the cork floor to the side.
  • a length-adjustable center support which can be changed in length and to which a cross support is fastened horizontally, the free ends of which serve as support arms pointing in the horizontal direction, for the cross-member having the connection means. While these crossbeams serve as anchors for the curvature of the formwork panel and are thus subjected to tension after the assembly of the formwork device, the other support arms are bent to the underside of the formwork panel in order to then be pressurized in the event of concreting.
  • the invention can also be used in a more cost-effective version without a center support, in that the cross member including the clamping plate is screwed to the wall, for example by means of an angle, for example fastened to the wall with a screw clamp, after which the formwork plate can then be drawn in.
  • the central support with its upper free end serves as a central support arm.
  • the center support is designed so that its length by moving the middle S support arm is extendable, as well as a lower portion on which a foot can be arranged.
  • the cross support can thus assume the height that is intended, for example in the case of circular vaults further down on the central support and in the case of circular segment falls further up.
  • clamps are provided on the cross support for fastening the other support arms, so that part of the support load is transferred from this cross support to the central support.
  • the particular advantage is that the angle that the support arms make in relation to the curved formwork panel can be perpendicular to it, i.e. radially to the circle, which optimally absorbs the load and avoids the risk of the support arm ends slipping on the formwork panel.
  • the clamps can be designed as simple rings through which the tubular support arms are inserted and can be tightened radially by wing screws running in the clamp wall.
  • a clamping plate is used as the connecting means, the formwork panel being clampable between the cross member and the clamping plate.
  • the sheet metal sheet consists of several interconnectable individual sheets. , whereby the Transporter and the storage of the individual sheets is greatly simplified.
  • hinges are provided at the front ends of the formwork panel as connecting means to the cross members, the formwork panel consisting of at least two parts that overlap in sections.
  • This configuration is particularly advantageous in the case of circular segment vaults, in which, depending on the width of the window, the two oppositely hinged S c holding plates overlap in sections in the central region.
  • simple bands can be provided at least at the end of the upper formwork panel.
  • the supports that is to say the support arms, cross support, central support, etc., consist of tubes of different cross-section which can be telescoped for the length change and can then be locked.
  • a change in length can also exist via corresponding rows of holes between the parts to be connected, via which these parts are then screwed together.
  • Wing screws penetrating radially through the outer tube can serve as a lock between the telescopically interacting parts.
  • the formwork panel is made of spring steel, preferably stainless steel. This not only results in a long useful life, but also simplifies cleaning of cement and concrete residues and also ensures an even curve causing elasticity.
  • the formwork panel can also consist of the usual formwork plywood or else of plastic.
  • At least one angle piece is arranged as a vertical stop on the cross member or formwork panel.
  • This angle piece can either be supported on one of the already existing side posts of the opening to be arched or on the side form panels.
  • Last but not least, such an elbow can also be used to support lateral formwork panels.
  • the elbow can be connected directly to the side post by dowelling or by tightening using a device that encompasses the post.
  • all supports can be removed to form a transport package, so that as long as the formwork device is not used, it can be stored in a simplified manner.
  • the formwork device characterized in that the width of the formwork surfaces can be changed by several parts lying on top of one another and being displaceable relative to one another transversely to the lintel to be boarded. If necessary, the crossbeams can also be changed in length to reinforce them.
  • Fig. 1 shows the first variant in perspective
  • Fig. 2 shows a detail of Fig. 1 on an enlarged scale
  • Fig. 3 shows the second variant of the embodiment.
  • the formwork device consists of a central support 1 into which a footrest 2 is telescopically inserted and displaceable in length and can be tightened via a wing screw 3.
  • the footrest 2 has a cross 4.
  • a central support arm 5 is telescopically inserted, which can also be tightened via a wing screw 6.
  • a transverse support 7 is screwed to it, in the two ends of which telescopic horizontal support arms 8 are inserted so as to be adjustable in length, which in turn can be locked by wing screws 6.
  • 8 horizontal cross members 9 are attached to the outer ends of the horizontal support arms.
  • a curved formwork panel 11 is held by the cross member 9 and is supported in the middle by the middle support arm.
  • further support arms 12 are arranged in the case of the exemplary embodiment 2 support arms, which run radially to the formwork panel 11, that is to say meet it at right angles, and which have the end facing away from the formwork panel 11 via clips 13 on the cross support 7 are attached.
  • the support arms 12 can be moved in the clamps 13 and locked by wing screws 14.
  • Clamping plates 15 which can be screwed to the crossbeams, are used to fasten the formwork panel 11 to the crossbeam 9.
  • the formwork panel 11 is only pushed and clamped between the cross member 9 and the clamping plate 15 for fastening it.
  • the free ends 16 of the formwork panel 11 project more or less downward beyond the cross member 9 in accordance with the circular diameter of the curvature.
  • FIGS. 2 and 3 in which a circular segment vault is produced by the formwork device, two formwork panels 11 arranged one above the other are provided, which are connected with their bound ends via hinges 17 to the cross member 9. Depending on the width of the window, the overlap of the formwork panels 11 is different.
  • the free end of the upper formwork panel 1 1 can be connected to the underlying formwork panel 1 1 using a simple band clamp 1 8.
  • the cross member 9 has an outwardly protruding angle piece 19 with which the formwork device can be supported on already existing door or window posts.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Abstract

Ce dispositif de coffrage, servant notamment à former des linteaux arqués de portes et fenêtres, comprend une structure prenant appui sur le sol et constituée d'un montant central (1) auquel sont reliés des bras de support (5, 8, 12) qui permettent de soutenir et de fixer au moins une planche de coffrage (11).
PCT/DE1995/000568 1995-05-03 1995-05-03 Dispositif de coffrage WO1996035033A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/DE1995/000568 WO1996035033A1 (fr) 1995-05-03 1995-05-03 Dispositif de coffrage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/DE1995/000568 WO1996035033A1 (fr) 1995-05-03 1995-05-03 Dispositif de coffrage

Publications (1)

Publication Number Publication Date
WO1996035033A1 true WO1996035033A1 (fr) 1996-11-07

Family

ID=6918205

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1995/000568 WO1996035033A1 (fr) 1995-05-03 1995-05-03 Dispositif de coffrage

Country Status (1)

Country Link
WO (1) WO1996035033A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2405438A (en) * 2003-08-28 2005-03-02 Simon Bond Arch forming device
WO2012049699A3 (fr) * 2010-10-12 2012-08-02 Arco Sistem Ensemble de construction d'arc réglable et réutilisable pour la construction d'arcs ordinaires
CN110043053A (zh) * 2018-01-15 2019-07-23 上海宝冶集团有限公司 多牛腿定位方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1911327A1 (de) * 1969-03-06 1970-09-24 Herbert Lehmann Bogenlehre zur rationellen Herstellung von Boegen aller Art
DE2334020A1 (de) * 1973-07-04 1975-01-23 Manfred Rupflin Verstellbare mauerbogenschalung
GB1432142A (en) * 1972-04-20 1976-04-14 British Steel Corp Support device suitable for use in the construction of a brick arch
FR2457360A1 (fr) * 1979-05-21 1980-12-19 Esposito Antonin Coffrage telescopique pour linteaux en arcs de cercle surbaisses

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1911327A1 (de) * 1969-03-06 1970-09-24 Herbert Lehmann Bogenlehre zur rationellen Herstellung von Boegen aller Art
GB1432142A (en) * 1972-04-20 1976-04-14 British Steel Corp Support device suitable for use in the construction of a brick arch
DE2334020A1 (de) * 1973-07-04 1975-01-23 Manfred Rupflin Verstellbare mauerbogenschalung
FR2457360A1 (fr) * 1979-05-21 1980-12-19 Esposito Antonin Coffrage telescopique pour linteaux en arcs de cercle surbaisses

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2405438A (en) * 2003-08-28 2005-03-02 Simon Bond Arch forming device
WO2012049699A3 (fr) * 2010-10-12 2012-08-02 Arco Sistem Ensemble de construction d'arc réglable et réutilisable pour la construction d'arcs ordinaires
CN110043053A (zh) * 2018-01-15 2019-07-23 上海宝冶集团有限公司 多牛腿定位方法
CN110043053B (zh) * 2018-01-15 2021-10-01 上海宝冶集团有限公司 多牛腿定位方法

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