EP0645508A2 - Plate-forme d'échafaudage en bois equarri - Google Patents

Plate-forme d'échafaudage en bois equarri Download PDF

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Publication number
EP0645508A2
EP0645508A2 EP94114998A EP94114998A EP0645508A2 EP 0645508 A2 EP0645508 A2 EP 0645508A2 EP 94114998 A EP94114998 A EP 94114998A EP 94114998 A EP94114998 A EP 94114998A EP 0645508 A2 EP0645508 A2 EP 0645508A2
Authority
EP
European Patent Office
Prior art keywords
strips
scaffolding
screed
profile
plank according
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.)
Granted
Application number
EP94114998A
Other languages
German (de)
English (en)
Other versions
EP0645508B1 (fr
EP0645508A3 (fr
Inventor
Walter Hiby
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.)
GUENTER RUX GmbH
Original Assignee
Guenter Rux 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6498634&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0645508(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Guenter Rux GmbH filed Critical Guenter Rux GmbH
Priority to DE9422156U priority Critical patent/DE9422156U1/de
Publication of EP0645508A2 publication Critical patent/EP0645508A2/fr
Publication of EP0645508A3 publication Critical patent/EP0645508A3/fr
Application granted granted Critical
Publication of EP0645508B1 publication Critical patent/EP0645508B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/15—Scaffolds primarily resting on the ground essentially comprising special means for supporting or forming platforms; Platforms
    • E04G1/151—Platforms made of wood, with or without reinforcements

Definitions

  • the invention relates to a scaffold plank made of rectangular sawn timber according to the preamble of claim 1.
  • Scaffolding planks made of rectangularly cut solid wood are popular with users of stand scaffolding, because on the one hand they are relatively cheaper than scaffolding planks made of other materials, e.g. B. are made of steel or aluminum and because on the other hand wood forms a comparatively safe standing and stacking area.
  • Such scaffolding planks span the distances between vertical scaffold ladders or vertical frames of, for example, tubular steel scaffolding. Selected rung or frame trusses serve as supports for the scaffold plank ends. If these ends are steamed up, a positive fit is generally sought in the covering plane, which, for. B. can be ensured by pairs of hooks that overlap the crossbeams, or by pins on the frame crossbeams used as supports, in the latter case holes being provided in the fittings in which the pins engage.
  • the cross-sectional shape is converted from the rectangular cross-section into a cross-sectional design that takes static requirements into account, which is also possible in sawn timber or in composite planks by arranging or designing the strips, e.g. B. by other material, preferably metal.
  • this cross-sectional design of the new scaffold covering screed according to the invention presupposes that the tensile forces occurring on the underside of the screed when the top of the screed is loaded are transmitted to and removed from the strips provided for reinforcement. This can be achieved by fastening the strips made of wood with the fasteners known from woodworking, but can also be made from the timber of the screed.
  • the invention takes into account the practical handling of the scaffold plank on the one hand by leaving the screed ends unchanged, so that the screed according to the invention can be used in place of the known scaffold planks in existing scaffolding and furthermore ensures the stackability of the planks which results on the one hand from the fact that preferably several strips are used and on the other hand these strips and not, as is known, the flat underside of the planks are used for support in the stack.
  • the invention has the advantage that either the load-bearing capacity of the scaffold decking is substantially maintained while maintaining the usual screed thickness. H. depending on the training, can increase by about 50%, or is able to reduce the screed thickness, until the usual and prescribed load-bearing capacity of the screed is reached.
  • the invention is preferably realized with the features of claim 2, in particular providing wooden profiled strips.
  • a different, basic embodiment of the invention provides for the strips to be worked out of the sawn timber so that they form a structural unit with the rectangular plank cross section.
  • the central symmetry means that the strip arrangement is mirrored on the longitudinal center plane of the screed, so that the screed halves are the same. Since, in this embodiment, the downward-oriented profile surfaces of the strips are also designed to be flat there is a sufficiently large support area on each profile strip, resulting in safe stacking.
  • the invention also allows the screed body, i. H. using the rectangular cross-section of the scaffold planking, essentially without considering the strip arrangement described, to further improve the load-bearing capacity.
  • This possibility is offered by claim 7. Since the sawn timber glued together forms the plank body, this can be provided on the underside with the strips according to the basic idea of the invention, the gluing of the sawn timber giving a relatively greater resistance to bending than is the case with one solid body made of uniform wood is the case.
  • a further improvement in the load-bearing capacity is provided by the features of claim 8.
  • the arrangement of a flexible traction device in addition to the described arrangement of the strips increases the resistance to deflection, so that a further traction reinforcement results from the traction device.
  • this traction device is expediently attached in the center of the screed in order to ensure the required symmetry when the screed bends.
  • the arrangement of the traction means on a bar, as u. a. is reproduced in claim 10.
  • a band-shaped traction means is suitable for this purpose, which should be arranged according to the features of claim 11 and attached to the screed.
  • the envelope profile can basically consist of the material wood. However, metallic materials are expedient, for which light metals are also suitable.
  • the envelope profile itself has great bending stiffness and tensile strength due to its high section modulus, which results from the formation of a profile chamber and the material distributed around it. Its more or less complete filling of the profile chamber with the cross-section of the last in connection with the fastening means that connect the envelope profile with the cross-section of the last leads to a stabilization of the overall cross-section and to a composite effect which considerably improves the statics of the scaffold plank. If the envelope profile consists of a material that is harder than the last material, in particular metallic material, the risk of damage when stacking the scaffolding planks is considerably reduced by the contact surface formed by the envelope profile.
  • This basic embodiment according to claim 17 can be further developed. It has proven to be advantageous to design the envelope profile according to claim 18.
  • the envelope profile according to claim 18 there is a comparatively simple, i.e. H. either commercially available or from a sheet metal cut-out U-profile, which covers the strips on several longitudinal surfaces. It depends on strength considerations whether only one bar of the scaffold plank according to the invention or, in the case of several bars, some or all of the bars are reinforced with such an envelope profile.
  • the cross section of the strips can be adapted to the materials used and selected according to the structural requirements.
  • a preferred embodiment describes claim 20, according to which the strip cross-section is square.
  • Such strips can be easily made of wood and metal.
  • the inventive concept relating to the envelope profile is preferably applied to such strip cross sections according to the features of claim 21.
  • the U-profile described above is suitable for rectangular to square strips.
  • the wrapping of even one bar is too complex.
  • the embodiments according to claim 22 are provided. This makes it possible to use envelope profiles with cross-sectional dimensions that are smaller than the strip cross-sections. Then, however, taking into account symmetrical screed loads, the arrangement of such envelope profiles as specified in claim 22 must be made.
  • the cross sections can be seen from the perspectively illustrated ends of scaffolding planks 1.
  • a plank body 2 with a rectangular cross section 3 made of sawn timber can be distinguished from strips 4 and 5.
  • the different embodiments of the invention essentially differ from one another in the structure of the screed body 2 and / or the arrangement and number of the strips.
  • These strips run essentially over the length between the plank end faces, which form the ends of the planks and show cross section 3 in the exemplary embodiment in FIG. 1. They protrude from the plane of the flat underside 6 of the screed body 2.
  • the screed ends When the screed ends are supported on a support (not shown) of the scaffold, they serve as reinforcement against deflection under the screed load, which is applied to the top 7 of the screed by deposited objects or the weight of the person entering the largest screed.
  • the strips are arranged in all cases so that there is a mirror symmetry in the longitudinal direction of the scaffolding planks. In the embodiment of FIG. 1, the strips are located on the longitudinal edges 8 and 9 of the scaffold plank shown.
  • the strips also serve to support the scaffold plank in a stack of several planks of the same design lying vertically one above the other and horizontally, ie. H. of planks, which are designed according to the embodiments, which are shown for example in the drawing.
  • the profile strips as well as the strips of the exemplary embodiment according to FIG. 1 drawn at 4 and 5 consist of a full profile, which in the case of FIG. 1 is essentially rectangular and arranged such that the strips 4, 5 each have a their longer profile sides 10 and 11 are attached to the underside 6 of the screed body 2.
  • the inspection strips of a screed are identical in shape and area. Your profile is generally designated 12.
  • the plank body 2 consists of sawn timber in all cases. Embodiments of the invention are shown in the exemplary embodiments, in which the strips likewise consist of wood.
  • Fig. 2 three strips 14 to 16 are provided, which form a structural unit with the screed body in that they are glued to cut wood strips 17, 18 in such a way that the profile surfaces 19 to 21 of the strips 14 to 16 with the top of the screed 7 are aligned.
  • Embodiments are not shown, the cross section of which corresponds approximately to the cross section of the exemplary embodiment according to FIG. 1, but the profiled strips 4, 5 are milled out of the underside of a sawn timber which forms the overall cross section of the scaffold covering plank.
  • the profiled strips made of wood are glued to the plank body 2 over their entire length.
  • Embodiments are not shown in which the profiled strips are connected to the sawn timber of the plank body 2 at a plurality of points distributed over their length by fastening means.
  • the fastening means used for this purpose can consist of nails, screws or other means known from the building joinery.
  • the centrally symmetrical arrangement preferably follows with a plurality of strips, as have been explained above using the exemplary embodiments of FIGS. 1 and 2.
  • their number is increased again, which results in four profile strips 22 to 25, which are arranged and fastened as shown in FIG. 1.
  • all strips Due to their rectangular to square cross-section, all strips have a flat profile surface 26a which is oriented at the bottom, as illustrated by the example of strip 14 in the exemplary embodiment in FIGS. 2 to 26.
  • These profile surfaces lie in a common plane, are therefore aligned with one another and form the support surface with which the screed 1 is supported in a pile of screeds. This results in a secure support in the pile of screeds, which prevents the screed from tilting in the pile.
  • ropes or rods can also be considered, which can expediently be made from steel, but also from any other materials which are suitable for reducing tensile stresses.
  • the traction means 29 is arranged in the center of the screed, which results from the symmetry of the screed load. Since only additional tensile reinforcement and experience has shown that the screed load is greatest in the middle, the central arrangement of the tensile reinforcement results from these considerations. In a departure from the exemplary embodiment shown, however, several tensile reinforcements can also be provided or arranged in all or individual strips 26 to 28.
  • the drawstring has a rectangular cross section and is expediently arranged with one of its broad sides 30 so that its plane is parallel to the plane of the screed body 2.
  • the ends are provided with fittings 31 to 32, which ensure a positive fit with the supports of the scaffold, not shown.
  • the fitting 31 is a hollow body 32 made of sheet metal, which is slipped over the end of the screed and used to produce the positive connection the support 2 has hook elements 33, 34 which are open at the bottom.
  • the U-shaped fitting body 35 is provided with perforations 36, 37 which also penetrate the screed body 2 and receive mandrels which protrude upward from the supports of the scaffold.
  • the strips 4, 5 end in front of the inner edges of the fittings 32, 33 and are provided with a fillet 38 there to ensure a suitable transition.
  • the chamfer 38 can also be replaced by a simple bevel.
  • the embodiment according to FIG. 7 essentially corresponds to the embodiment according to FIG. 2, which serves to reproduce a screed reinforced with an envelope profile.
  • the cross-section 39 protruding downward from the screed of the bar 15 lying in the plane of symmetry is reinforced with an envelope profile 40.
  • This envelope profile is a U-profile folded from sheet metal and accordingly has a profile web 41 and two parallel profile flanges 42, 43 in one unit. At certain intervals, screw nails 44, 45 penetrate the profile flanges 42, 43 and are in cross section 39.
  • the embodiment according to FIG. 8 differs from this embodiment by a likewise U-shaped envelope profile 46, which has a smaller cross section than the envelope profile 40 in the embodiment according to FIG. 7. Its flanges 42, 43 are elongated compared to the flanges in the embodiment according to FIG. 7.
  • the cross-section 39 has one of two parallel grooves 47, 48 for receiving the flanges 42 and 43, into which the flanges 42 and 43 are inserted, as a result of which the envelope profile 46 is sunk under the underside 49 of the strip 15.
  • the screw nails 50 are driven through the profile flange 41 into the cross section 39.
  • FIG. 9 which likewise follows the embodiment according to FIG.
  • the strips 14 to 16 are connected to one another by a plurality of crossbars, one of which is shown at 52 in FIG. 9.
  • These crossbars consist of a band steel section 53 which is nailed to the undersides 57 to 59 of the strips 14 to 16 with the aid of screw nails 54 to 56.
  • the arrangement of the crossbars 52 prevents the screed from bending in the transverse direction.
  • the design in steel strip leads to a flat underside 60 of the cross bar 52, which promotes the stackability of the scaffolding planks.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Bridges Or Land Bridges (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Tables And Desks Characterized By Structural Shape (AREA)
  • Ladders (AREA)
  • Road Paving Machines (AREA)
  • Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
EP94114998A 1993-09-25 1994-09-23 Plate-forme d'échafaudage en bois équarri Expired - Lifetime EP0645508B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE9422156U DE9422156U1 (de) 1993-09-25 1994-09-23 Gerüstbelagbohle aus rechteckigem Schnittholz

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4332705 1993-09-25
DE4332705 1993-09-25

Publications (3)

Publication Number Publication Date
EP0645508A2 true EP0645508A2 (fr) 1995-03-29
EP0645508A3 EP0645508A3 (fr) 1995-07-26
EP0645508B1 EP0645508B1 (fr) 1998-03-04

Family

ID=6498634

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94114998A Expired - Lifetime EP0645508B1 (fr) 1993-09-25 1994-09-23 Plate-forme d'échafaudage en bois équarri

Country Status (7)

Country Link
EP (1) EP0645508B1 (fr)
AT (1) ATE163718T1 (fr)
CZ (1) CZ286952B6 (fr)
DE (2) DE59405361D1 (fr)
ES (1) ES2115833T3 (fr)
PL (1) PL177582B1 (fr)
SK (1) SK284368B6 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004008186B4 (de) * 2004-02-19 2006-03-16 Wilhelm Layher Vermögensverwaltungs-Gmbh Sperrholz-Metall-Platten-Verbund-Boden

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015000875A1 (de) 2015-01-23 2016-07-28 Fischerwerke Gmbh & Co. Kg Resorcinbasierte Mannichbasen und Silane in Kunstharzzusammensetzungen für Befestigungszwecke

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB154017A (en) * 1919-09-16 1920-11-25 David Craig Hamilton Improvements relating to planks for staging, scaffolding, and for other purposes
US1801904A (en) * 1929-04-08 1931-04-21 American Safety Device Co Scaffold stage
US3306397A (en) * 1965-05-24 1967-02-28 Elmer L Brumenshenkel Sectional platform or support for use with scaffolding
DE7540187U (de) * 1975-12-17 1976-05-26 Aluminium-Walzwerke Singen Gmbh, 7700 Singen Geruestbohle in verbundbauweise
FR2449177A1 (fr) * 1979-02-14 1980-09-12 Somefran Element de plancher leger d'echafaudage
DE9102737U1 (de) * 1991-03-07 1991-08-08 Günter Rux GmbH, 5800 Hagen Gerüstdiele aus Massivholz
AT401544B (de) * 1992-03-20 1996-09-25 Kaufmann Holzbauwerk Gmbh Gerüstbrett

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004008186B4 (de) * 2004-02-19 2006-03-16 Wilhelm Layher Vermögensverwaltungs-Gmbh Sperrholz-Metall-Platten-Verbund-Boden

Also Published As

Publication number Publication date
CZ233294A3 (en) 1995-05-17
CZ286952B6 (en) 2000-08-16
EP0645508B1 (fr) 1998-03-04
DE59405361D1 (de) 1998-04-09
ES2115833T3 (es) 1998-07-01
SK284368B6 (sk) 2005-02-04
PL177582B1 (pl) 1999-12-31
DE9415411U1 (de) 1995-01-19
EP0645508A3 (fr) 1995-07-26
PL305154A1 (en) 1995-04-03
SK115694A3 (en) 1995-10-11
ATE163718T1 (de) 1998-03-15

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