EP1498557A1 - Tête de support à montants emboutis - Google Patents

Tête de support à montants emboutis Download PDF

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Publication number
EP1498557A1
EP1498557A1 EP03011188A EP03011188A EP1498557A1 EP 1498557 A1 EP1498557 A1 EP 1498557A1 EP 03011188 A EP03011188 A EP 03011188A EP 03011188 A EP03011188 A EP 03011188A EP 1498557 A1 EP1498557 A1 EP 1498557A1
Authority
EP
European Patent Office
Prior art keywords
crosshead
base plate
stanchions
blank
long
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP03011188A
Other languages
German (de)
English (en)
Inventor
Artur Schwörer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Peri GmbH
Original Assignee
Peri GmbH
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 Peri GmbH filed Critical Peri GmbH
Priority to EP03011188A priority Critical patent/EP1498557A1/fr
Publication of EP1498557A1 publication Critical patent/EP1498557A1/fr
Withdrawn legal-status Critical Current

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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
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
    • E04G11/48—Supporting structures for shutterings or frames for floors or roofs
    • E04G11/483—Supporting heads

Definitions

  • the invention relates to a crosshead of a carrier slab formwork, comprising a base plate and four stanchions, wherein the stakes of a Stand the top of the base plate.
  • a generic crosshead is for example from the company publication "PERI program overview”, 2002 edition, the company PERI GmbH, 89259 Weissenhorn, page 286, known.
  • Crossheads of the prior art consistist essentially of one planar base plate and four equally long, approximately perpendicular from the top of the crosshead protruding braces, stanchions.
  • At the bottom of the Base plate means for attaching the crosshead to a top plate provided a prop.
  • the posts are welded onto the base plate. They serve the Position fixing of supports placed on the base plate.
  • the carriers should in particular against lateral slippage (i.e. Longitudinal direction and thus down from the base plate) and also against a Tilting the carriers are secured around their longitudinal axis.
  • crossheads The production of known crossheads is very complicated. The items The crosshead usually becomes a crosshead with the base plate welded. After welding are often mechanical Reworking of the welds necessary. Then he receives this Crosshead corrosion protection by, for example, a paint or a galvanizing. Also required is an extensive Quality control to z. B. to detect faulty welds.
  • the crosshead according to the invention can very quickly in two substantially Operations are made, namely by cutting out a Blanks and embossing (cold working) of the blank. In the latter embossing become the stanchions of the flat blank by plastic deformation in the bent position. An existing surface refinement (Galvanizing) of the blank is retained after the stamping of the stakes.
  • the production of crossheads according to the invention can be short Cycle times, which in particular can be significantly less than a minute, respectively.
  • the inventively embossed stanchions have an equally large mechanical strength such as welded stanchions.
  • a preferred embodiment of the crosshead according to the invention provides that the crosshead two opposing, long stanchions and two opposite short stakes, wherein the Extension of the short stakes in a direction perpendicular to the Top of the base plate away less than half the extent of the long stakes in the direction perpendicular from the top of the base plate away amounts.
  • the stakes have nail holes, especially in the area of their from the Top of the base plate opposite ends.
  • the nail holes can with Fastening means, in particular nails, for fixing straps, especially wooden beams, to be used at the crosshead.
  • At least two Stakes especially two long stakes, embossed beads on.
  • the Beading serve to stiffen the stanchions by deformation hardening.
  • the beads can in the same work process, in which also the stakes be pivoted, are introduced into the blank. However, too a separate previous embossing step for the beads conceivable. By the Stiffening can be saved at the stakes material, without the To reduce strength.
  • the base plate at least one breakthrough opening, in particular four Breakthrough openings, wherein the breakthrough opening (s) a in the direction from the top of the base plate into the base plate has tapered diameter (have).
  • the breakthrough openings For example, you can take countersunk screws that connect to a voltage applied to the underside of the base plate top plate of a support produce. The shape of the apertures allows the wearer to The base can just rest. In the holes arranged Locking pins, bolts with transverse joint, tilt fingers, screws, etc. are in the breakthrough opening sunk and stand from the top of the Base plate not off.
  • this embodiment is in at least one breakthrough opening provided a locking pin, the is held captive in the opening.
  • the locking pin, Bolt with transverse joint, tilt finger, etc. can not be lost then and is always available for its use at a suitable location. Its handling can in particular be done easily with one hand.
  • a preferred embodiment of the crosshead according to the invention sees in that the base plate on its side facing away from the stanchions a Centering curvature has. With the centering curvature of the Phillips easily with respect to one at the bottom of the Aligned base plate to be arranged perforated plate of a prop become. Also, by the Zentri mecanicsvölbung a fixation of reached relative position. An accidental tilting of the crosshead and Head plate of the support is prevented. Preferably is the Centering curvature approximately in the middle of the base plate.
  • this embodiment is the Centering curvature formed substantially conical.
  • a rotationally symmetrical centering curvature allows a free orientation of the Crosshead relative to the underlying top plate of the prop. This Degree of freedom may be, for example, for the orientation of the wearer, or else for actuating a locking mechanism between the crosshead and the Headstock of a prop can be used.
  • Another advantageous embodiment is an embodiment which is characterized is characterized in that the base plate at least two has opposite angled flaps, in particular four having angled flaps.
  • the cloths stiffen the base plate, especially against bending. This allows the base plate at the same Strength thinner.
  • the lobes are preferred the common blank of base plate and stakes in the same Work step as the stakes pronounced.
  • the Flap on side slits allow attachment of the crosshead on a headstock of a prop.
  • This is done by external edges of the top plate of a prop be pivoted in the side slots.
  • Particularly preferred are two Side slits provided in two opposing lobes, wherein these lobes are formed on the longer sides of the base plate.
  • the production is simplified within just two steps and makes the production of crossheads considerably less expensive.
  • the Sheet metal strip is made of thin metal, in particular galvanized steel from about 3 to 5 mm thickness. Laser cutting can be easily controlled with CAD be flexible with respect to the blanks to be produced and needed no edge finishing.
  • any Breakthrough openings or slots are introduced into the blank.
  • Step b) can also be achieved by imprinting Design measures, such as beading in the stanchions, centering curvatures or lobes are introduced to the base plate. This can be done despite detailed functional design of the crosshead with only one Cutting and a stamping step to be done.
  • Welding points necessary are none are preferred Welding points introduced later.
  • FIG. 1 shows a schematic oblique view of a crosshead 1 according to the invention a carrier slab formwork.
  • the crosshead 1 can be placed with the underside of a base plate 3 on a top plate, not shown, a prop and serves to support not shown support and to fix.
  • Either a single carrier with its longitudinal direction in the direction of arrow 2 extending on a top 21 of the base plate 3 of the crosshead 1 is stored, or two carriers with their longitudinal directions in the direction of arrows 4 and 5 extending are placed on the top 21 of the base plate 3 side by side.
  • To fix the position of the carrier of the crosshead 1 has four stakes, namely two long stanchions 6, 7 and two short stanchions 8, 9.
  • the long stanchions 6, 7 are diagonally opposite, as well as the short stakes 8, 9 are opposite. Any support can be moved on the base plate 3 only minimally transversely to its longitudinal direction, since the stanchions 6-9 and an optionally second, adjacent carrier limit the freedom of movement of the wearer. Also, a tilting of a carrier about its longitudinal axis is limited by a respective long stanchion 6, 7; in the case of two parallel carriers, one long stanchion each and the other carrier.
  • the stakes 6-9 are together with the base plate 3 of a single, flat blank has been made.
  • the stakes 6-9 were replaced by a Cold deformation of extending in the plane of the base plate 3 extensions the base plate 3 made by the projections each bent upwards were.
  • the transition areas of base plate 3 and stakes 6-9 are therefore each formed as bending edges.
  • the long stanchions 6, 7 are each stiffened by beads 10, 11.
  • the beads 10, 11 are as impressions in the material of the long stanchions 6, 7 formed on the inside each have a recess and the outside one each Buckling at the long stakes 6, 7 form.
  • the beads 10, 11 extend into the base plate 3 inside.
  • the stiffening effect is based on work hardening by plastic deformation. It can be used to save material.
  • All stakes 6-9 also have over their outer ends Nail holes 20, by means of which wooden support on the crosshead 1 in addition can be fixed or fastened by nails, in particular by a Movement of the carrier along its longitudinal direction or in one direction perpendicular to prevent the top 21 of the base plate 3 away.
  • the short stanchions are outward equipped side wings, which are approximately parallel to the Arrow directions 4,5 and 2 run and each have nail holes.
  • a stiffening of the base plate 3 was by an angling of Outside areas of the base plate 3 reached down.
  • On the long and narrow sides of the base plate 3 are each lobes 12, 13, 14, 15th angled, wherein the flap 13 of the rear long side (longitudinal side) in the Figure 1 is largely hidden.
  • the flaps 12, 13 on the long sides have side slots 16, 17, each in the direction of the long side the base plate 3 extend. Through these side slots 16, 17 can corners a head plate of a prop to protrude to the crosshead 1 to a prop releasably secure.
  • In the attached state are also safety pins or screws through phased breakthrough openings 18 in the base plate 3 and corresponding holes in the column head out.
  • FIG. 1 shows a securing pin 19, which is held captive in a breakthrough opening 18 and for fixing and securing a crosshead 1 to be used on a prop can.
  • the crosshead 1 has no welds or welds.
  • FIG. 2 shows a plan view of a blank 25 from which the crosshead of FIG. 1 can be made by stamping.
  • the blank 25 is cut from a band plate and consists of a base plate 3 and four extensions, namely two long extensions 26, 27 and two short extensions 28, 29th
  • the long Extensions 26, 27 and the short extensions 28, 29 in the direction of the Drawing plane and bent to the center of the base plate 3. This results in a corresponding plastic deformation of the material of Blanks 25 one.
  • the blank 25 is typically made of galvanized steel or another metal.
  • the erected extensions 26-29 represent the Rungen of the cross head dar.
  • An inventive crosshead with a base plate and four stakes is manufactured by the fact that the stakes by bending an approximately level, metallic blanks are formed.
  • the cold-formed Transition areas of stanchions and base plate are mechanically strong and do not require elaborate quality control such as testing of Welds.
  • On welding operations can in the manufacture of the Crosshead are omitted according to the invention, whereby the Production is simplified and cheaper.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
EP03011188A 2003-05-27 2003-05-27 Tête de support à montants emboutis Withdrawn EP1498557A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP03011188A EP1498557A1 (fr) 2003-05-27 2003-05-27 Tête de support à montants emboutis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03011188A EP1498557A1 (fr) 2003-05-27 2003-05-27 Tête de support à montants emboutis

Publications (1)

Publication Number Publication Date
EP1498557A1 true EP1498557A1 (fr) 2005-01-19

Family

ID=33462078

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03011188A Withdrawn EP1498557A1 (fr) 2003-05-27 2003-05-27 Tête de support à montants emboutis

Country Status (1)

Country Link
EP (1) EP1498557A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3228777A1 (fr) 2016-04-08 2017-10-11 DOKA GmbH Tete de retenue destinee a etre reliee a une extremite d'un element de support pour un support de coffrage
EP3719238A1 (fr) 2019-04-03 2020-10-07 DOKA GmbH Tête de retenue, support de coffrage et coffrage de plafond

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2019044A1 (de) * 1969-04-26 1970-11-12 Mills Scaffold Company Ltd., London Baugerüstelement
US3785110A (en) * 1971-01-14 1974-01-15 Illinois Tool Works Modular ceiling connector
DE3147081A1 (de) * 1981-05-30 1982-12-30 Udo 4836 Herzebrock Rose "geruest fuer betonschalungen"
AT385548B (de) * 1985-05-03 1988-04-11 E & G Kronsteiner Fa Vorrichtung zum abstuetzen von traegern fuer deckenschalungen
EP0678637A1 (fr) * 1994-04-21 1995-10-25 DOKA Industrie GmbH Méthode et dispositif de coffrage pour dalles
DE19605824C1 (de) * 1996-02-16 1997-10-02 Doka Ind Gmbh Kopfverbindung für eine Rohrstütze
EP0878595A1 (fr) * 1997-05-16 1998-11-18 Peri Gmbh Plaque de support pour coffrage de dalles

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2019044A1 (de) * 1969-04-26 1970-11-12 Mills Scaffold Company Ltd., London Baugerüstelement
US3785110A (en) * 1971-01-14 1974-01-15 Illinois Tool Works Modular ceiling connector
DE3147081A1 (de) * 1981-05-30 1982-12-30 Udo 4836 Herzebrock Rose "geruest fuer betonschalungen"
AT385548B (de) * 1985-05-03 1988-04-11 E & G Kronsteiner Fa Vorrichtung zum abstuetzen von traegern fuer deckenschalungen
EP0678637A1 (fr) * 1994-04-21 1995-10-25 DOKA Industrie GmbH Méthode et dispositif de coffrage pour dalles
DE19605824C1 (de) * 1996-02-16 1997-10-02 Doka Ind Gmbh Kopfverbindung für eine Rohrstütze
EP0878595A1 (fr) * 1997-05-16 1998-11-18 Peri Gmbh Plaque de support pour coffrage de dalles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3228777A1 (fr) 2016-04-08 2017-10-11 DOKA GmbH Tete de retenue destinee a etre reliee a une extremite d'un element de support pour un support de coffrage
EP3719238A1 (fr) 2019-04-03 2020-10-07 DOKA GmbH Tête de retenue, support de coffrage et coffrage de plafond

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