CH568457A5 - Frame for concrete ceiling mfr - has trimming pole drawn over rails with level determined by spindle and pipe on formwork - Google Patents
Frame for concrete ceiling mfr - has trimming pole drawn over rails with level determined by spindle and pipe on formworkInfo
- Publication number
- CH568457A5 CH568457A5 CH1292873A CH1292873A CH568457A5 CH 568457 A5 CH568457 A5 CH 568457A5 CH 1292873 A CH1292873 A CH 1292873A CH 1292873 A CH1292873 A CH 1292873A CH 568457 A5 CH568457 A5 CH 568457A5
- Authority
- CH
- Switzerland
- Prior art keywords
- rails
- pull
- concrete
- leveling
- trestle
- Prior art date
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
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/10—Devices for levelling, e.g. templates or boards
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)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
Two trimming rails (1 and 2) are in the trimming frame (3) and rest on a U shaped flat iron (4) open at its top and secured by its bottom end to the end of a spindle (5). The spindle is height adjustable using a crank inside a pipe (7) and the pipe has three side supports (8) pointing downwards which rest either on the formwork or the substrate to be concreted. A trimming pole (9) is drawn over the trails (1, 2) both longitudinally and transversely to distribute the concrete and the side ends of the pole are guided at an exact height on the rails' top sides. The system avoids the need to use heavy steel rails but still maintains the necessary strength and stability requirements.
Description
Die Erfindung betrifft ein Bockgerüst für die Herstellung von Betondecken mit in höhenverstellbaren Abziehböcken eingesetzten Abziehschienen für die Führung der Abziehlatte.
An ein Bockgerüst ist die Anforderung zu stellen, dass es eine hohe Stabilität aufweist, so dass die Abziehschienen bei der Bewegung der Abziehlatte zum Verteilen bzw. Abziehen des Betons ihre genau eingestellte Lage nicht verändern, da sonst die angestrebte Gleichmässigkeit der Oberfläche der
Betondecke nicht erreicht werden kann. Hierzu ist es erforder lich, dass die drei oder vier Meter langen Abziehschienen, die nur an ihren Enden abgestützt werden, sich nicht durchbiegen oder verziehen. Ausserdem sollen sie eine glatte Oberfläche aufweisen, so dass die Abziehlatte mit geringem Widerstand auf ihnen geführt werden kann.
Bisher wurden diese Anforderungen durch schwere massive
Stahlschienen erfüllt, die jedoch den Nachteil hatten, dass sie schwer zu transportieren sind, insbesondere, da auf einer
Baustelle oft zahlreiche solche Abziehschienen verwendet werden und die auf der Baustelle meist von Hand und ausser dem von Baustelle zu Baustelle transportiert werden müssen.
Bei ihrem üblichen Querschnitt von 50 mm Höhe und 15 mm
Breite beträgt das Gewicht einer Abziehschiene von 4 m
Länge ca. 24 kg. Durch das hohe Gewicht der Abziehschienen sind diese durch ihren hohen Aufwand an Material ausserdem verhältnismässig teuer. Der vorliegenden Erfindung liegt die
Aufgabe zugrunde, diese Nachteile zu vermeiden, und es wird ein Bockgerüst vorgeschlagen, das erfindungsgemäss dadurch gekennzeichnet ist, dass die Abziehschienen aus einem Hohl profil bestehen.
Es hat sich gezeigt, dass die an ein Bockgerüst gestellten
Anforderungen bei Ausführung der Abziehschienen aus einem
Hohlprofil im gleichen Masse gut erfüllt werden, und es somit nicht erforderlich ist, aus Festigkeits- oder Stabilitätsgründen die bisher üblichen, schwer zu transportierenden, teuren, massiven Abziehschienen zu verwenden. Ein Hohlprofil mit den gleichen Aussenabmessungen wie die bisherigen massiven
Schienen hat nur ca. ein Drittel des Gewichtes von massiven
Schienen und ist ausserdem wesentlich billiger.
Die erfindungsgemässe hohle Abziehschiene kann vorteil haft an ihren Enden üblicherweise z. B. durch ein Kunststoff teil oder ein geschweisstes Abschlussteil verschlossen sein, so dass kein Beton in die Schiene eindringen kann.
Es kann ein handelsübliches, kaltgezogenes Hohlprofil verwendet werden mit den äusseren Querschnittsabmessungen 50 mm/15 mm und einer Wandstärke von 2 mm.
In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt.
Fig. 1 zeigt eine perspektivische Ansicht eines Teiles des Bockgerüstes, und
Fig. 2 eine Teildarstellung eines Querschnittes entlang der Linie I-I der Fig. 1.
Wie die Fig. 1 zeigt, sind zwei Abziehschienen 1 und 2 in Abziehböcke 3 eingesetzt, Sie liegen auf einem U-förmig gebogenen, nach oben offenen Flacheisen 4 auf, das am unteren Ende einer Spindel 5 befestigt ist. Die Spindel 5 ist beispielsweise mit Hilfe einer Kurbel 6 innerhalb eines Rohres 7 höhenverstellbar, und das Rohr hat drei seitlich angebrachte, sich nach unten erstreckende Stützen 8, die auf den nicht dargestellten, zu betonierenden Untergrund bzw. die Schalung aufgestellt werden. Ein derartiger Abziehbock 3 befindet sich an jedem Ende einer der Abziehschienen 1 und 2, und er kann in dem freien Teil des U-förmigen Bügels 4 das Ende einer sich anschliessenden Abziehschiene 1, 2 aufnehmen.
Zum Verteilen bzw. Abziehen des Betons und damit zur Herstellung einer ebenen Betonoberfläche wird die Abziehlatte 9 über die Abziehschienen 1, 2 in deren Längsrichtung sowie mit Querbewegungen gezogen, wobei ihre seitlichen Enden 10 auf der Oberseite der Abziehschienen in genau definierter Höhe geführt sind.
Fig. 2 mit der andeutungsweisen Darstellung der Abziehlatte 9 zeigt den Querschnitt der Abziehschienen 1, 2 und macht insbesondere die bedeutende Einsparung des für die Abziehschienen verwendeten Materials und die damit verbundene Gewichtsverringerung deutlich.
PATENTANSPRUCH
Bockgerüst für die Herstellung von Betondecken mit in höhenverstellbaren Abziehböcken eingesetzten Abziehschienen für die Führung der Abziehlatte (9), dadurch gekennzeichnet, dass die Abziehschienen (1, 2) aus einem Hohlprofil bestehen.
UNTERANSPRUCH
Bockgerüst nach Patentanspruch, dadurch gekennzeichnet, dass die Enden der hohlen Abziehschienen (1, 2) verschlossen sind.
**WARNUNG** Ende DESC Feld konnte Anfang CLMS uberlappen**.
The invention relates to a trestle frame for the production of concrete ceilings with screeding rails used in height-adjustable screeding stands for guiding the screeding lath.
The requirement of a trestle is that it has a high level of stability so that the leveling rails do not change their precisely set position when the leveling bar moves to distribute or remove the concrete, otherwise the desired evenness of the surface of the
Concrete ceiling cannot be reached. For this it is necessary that the three or four meter long pull-off rails, which are only supported at their ends, do not bend or warp. In addition, they should have a smooth surface so that the peel-off bar can be guided on them with little resistance.
So far these demands have been massive due to severe
Steel rails met, which however had the disadvantage that they are difficult to transport, especially since on one
Construction site often numerous such puller rails are used and which have to be transported on the construction site mostly by hand and also from construction site to construction site.
With their usual cross-section of 50 mm high and 15 mm
Width is the weight of a peeling bar of 4 m
Length approx. 24 kg. Due to the high weight of the pull-off rails, they are also relatively expensive due to their high material expenditure. The present invention is the
The object of the invention is to avoid these disadvantages, and a trestle is proposed which, according to the invention, is characterized in that the pull-off rails consist of a hollow profile.
It has been shown that those placed on a trestle
Requirements for the execution of the puller rails from one
Hollow profile can be well fulfilled to the same extent, and it is therefore not necessary to use the previously customary, difficult to transport, expensive, massive pull-off rails for reasons of strength or stability. A hollow profile with the same external dimensions as the previous massive ones
Rail is only about a third the weight of massive ones
Rails and is also much cheaper.
The inventive hollow peeler bar can advantageously at their ends usually z. B. be closed by a plastic part or a welded end part, so that no concrete can penetrate the rail.
A commercially available, cold-drawn hollow profile can be used with the external cross-sectional dimensions 50 mm / 15 mm and a wall thickness of 2 mm.
An exemplary embodiment of the invention is shown in the drawing.
Fig. 1 shows a perspective view of part of the trestle frame, and
FIG. 2 shows a partial representation of a cross section along the line I-I of FIG. 1.
As FIG. 1 shows, two peeling rails 1 and 2 are inserted into peeling stands 3; they rest on a flat iron 4, bent in a U shape and open at the top, which is attached to the lower end of a spindle 5. The spindle 5 is adjustable in height, for example with the aid of a crank 6 within a pipe 7, and the pipe has three laterally attached, downwardly extending supports 8, which are set up on the substrate (not shown) or the formwork. Such a pulling stand 3 is located at each end of one of the pulling rails 1 and 2, and it can receive the end of an adjoining pulling rail 1, 2 in the free part of the U-shaped bracket 4.
To distribute or peel off the concrete and thus to produce a flat concrete surface, the leveling lath 9 is pulled over the peeling rails 1, 2 in their longitudinal direction and with transverse movements, their lateral ends 10 being guided on the top of the peeling rails at a precisely defined height.
Fig. 2 with the suggestive representation of the pull-off lath 9 shows the cross section of the pull-off rails 1, 2 and shows in particular the significant savings in the material used for the pull-off rails and the associated weight reduction.
PATENT CLAIM
Trestle frame for the production of concrete ceilings with leveling rails inserted in height-adjustable leveling trestles for guiding the leveling lath (9), characterized in that the leveling bars (1, 2) consist of a hollow profile.
SUBClaim
A trestle according to claim, characterized in that the ends of the hollow pull-off rails (1, 2) are closed.
** WARNING ** End of DESC field could overlap beginning of CLMS **.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1292873A CH568457A5 (en) | 1973-09-11 | 1973-09-11 | Frame for concrete ceiling mfr - has trimming pole drawn over rails with level determined by spindle and pipe on formwork |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1292873A CH568457A5 (en) | 1973-09-11 | 1973-09-11 | Frame for concrete ceiling mfr - has trimming pole drawn over rails with level determined by spindle and pipe on formwork |
Publications (1)
Publication Number | Publication Date |
---|---|
CH568457A5 true CH568457A5 (en) | 1975-10-31 |
Family
ID=4387696
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH1292873A CH568457A5 (en) | 1973-09-11 | 1973-09-11 | Frame for concrete ceiling mfr - has trimming pole drawn over rails with level determined by spindle and pipe on formwork |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH568457A5 (en) |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1983000177A1 (en) * | 1981-07-10 | 1983-01-20 | Ljungkvist, Stig-Ake | Arrangement for the production of longitudinal screed slabs consisting of concrete |
FR2609081A1 (en) * | 1986-12-24 | 1988-07-01 | Douchin Eric | Device for smoothing level or sloping cement screeds |
US5212919A (en) * | 1991-01-28 | 1993-05-25 | Shaw Lee A | Nelson stud screed post assembly |
US5301485A (en) * | 1991-01-28 | 1994-04-12 | Shaw Lee A | Nelson stud screed post assembly |
US5678952A (en) * | 1995-11-16 | 1997-10-21 | Shaw; Lee A. | Concrete dowel placement apparatus |
USD419700S (en) | 1998-11-20 | 2000-01-25 | Shaw Lee A | Load transfer dowel holder |
US6210070B1 (en) | 1999-04-14 | 2001-04-03 | Ron D. Shaw | Concrete dowel slip tube with clip |
US6223495B1 (en) | 1999-02-26 | 2001-05-01 | Lee A. Shaw | Vibrating screed with rollers |
DE20300255U1 (en) | 2003-01-10 | 2003-03-20 | BISOTHERM GmbH, 56218 Mülheim-Kärlich | Building construction brick wall levelling jig cross-struts have guides |
US7874762B2 (en) | 2005-12-14 | 2011-01-25 | Shaw & Sons, Inc. | Dowel device with closed end speed cover |
CN104989104A (en) * | 2015-07-03 | 2015-10-21 | 中国十七冶集团有限公司 | Concrete leveling frame with movable pedal plate |
US9340969B1 (en) | 2014-11-13 | 2016-05-17 | Shaw & Sons, Inc. | Crush zone dowel tube |
US9617694B2 (en) | 2014-01-15 | 2017-04-11 | Shaw & Sons, Inc. | Concrete dowel system |
US10858825B2 (en) | 2015-10-05 | 2020-12-08 | Shaw & Sons, Inc. | Concrete dowel placement system and method of making the same |
US11578491B2 (en) | 2020-02-07 | 2023-02-14 | Shaw Craftsmen Concrete, Llc | Topping slab installation methodology |
US11623380B2 (en) | 2015-10-05 | 2023-04-11 | Shaw & Sons, Inc. | Concrete dowel placement system and method of making the same |
-
1973
- 1973-09-11 CH CH1292873A patent/CH568457A5/en not_active IP Right Cessation
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1983000177A1 (en) * | 1981-07-10 | 1983-01-20 | Ljungkvist, Stig-Ake | Arrangement for the production of longitudinal screed slabs consisting of concrete |
FR2609081A1 (en) * | 1986-12-24 | 1988-07-01 | Douchin Eric | Device for smoothing level or sloping cement screeds |
US5212919A (en) * | 1991-01-28 | 1993-05-25 | Shaw Lee A | Nelson stud screed post assembly |
US5301485A (en) * | 1991-01-28 | 1994-04-12 | Shaw Lee A | Nelson stud screed post assembly |
US5678952A (en) * | 1995-11-16 | 1997-10-21 | Shaw; Lee A. | Concrete dowel placement apparatus |
US5934821A (en) * | 1995-11-16 | 1999-08-10 | Shaw; Lee A. | Concrete dowel placement apparatus |
USD419700S (en) | 1998-11-20 | 2000-01-25 | Shaw Lee A | Load transfer dowel holder |
US6223495B1 (en) | 1999-02-26 | 2001-05-01 | Lee A. Shaw | Vibrating screed with rollers |
US6210070B1 (en) | 1999-04-14 | 2001-04-03 | Ron D. Shaw | Concrete dowel slip tube with clip |
DE20300255U1 (en) | 2003-01-10 | 2003-03-20 | BISOTHERM GmbH, 56218 Mülheim-Kärlich | Building construction brick wall levelling jig cross-struts have guides |
US7874762B2 (en) | 2005-12-14 | 2011-01-25 | Shaw & Sons, Inc. | Dowel device with closed end speed cover |
US9617694B2 (en) | 2014-01-15 | 2017-04-11 | Shaw & Sons, Inc. | Concrete dowel system |
US9951481B2 (en) | 2014-01-15 | 2018-04-24 | Shaw & Sons, Inc. | Concrete dowel system |
US9340969B1 (en) | 2014-11-13 | 2016-05-17 | Shaw & Sons, Inc. | Crush zone dowel tube |
US9546456B2 (en) | 2014-11-13 | 2017-01-17 | Shaw & Sons, Inc. | Crush zone dowel tube |
CN104989104A (en) * | 2015-07-03 | 2015-10-21 | 中国十七冶集团有限公司 | Concrete leveling frame with movable pedal plate |
US10858825B2 (en) | 2015-10-05 | 2020-12-08 | Shaw & Sons, Inc. | Concrete dowel placement system and method of making the same |
US11623380B2 (en) | 2015-10-05 | 2023-04-11 | Shaw & Sons, Inc. | Concrete dowel placement system and method of making the same |
US12059832B2 (en) | 2015-10-05 | 2024-08-13 | Shaw & Sons, Inc. | Concrete dowel placement system and method of making the same |
US11578491B2 (en) | 2020-02-07 | 2023-02-14 | Shaw Craftsmen Concrete, Llc | Topping slab installation methodology |
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Legal Events
Date | Code | Title | Description |
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