EP0658408B1 - Schalung zur Herstellung von Betontreppen - Google Patents
Schalung zur Herstellung von Betontreppen Download PDFInfo
- Publication number
- EP0658408B1 EP0658408B1 EP94119562A EP94119562A EP0658408B1 EP 0658408 B1 EP0658408 B1 EP 0658408B1 EP 94119562 A EP94119562 A EP 94119562A EP 94119562 A EP94119562 A EP 94119562A EP 0658408 B1 EP0658408 B1 EP 0658408B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shuttering
- axes
- tread
- positioning elements
- guide
- 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.)
- Expired - Lifetime
Links
- 238000009416 shuttering Methods 0.000 title claims abstract 15
- 230000001154 acute effect Effects 0.000 claims abstract description 4
- 238000006073 displacement reaction Methods 0.000 claims description 21
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims 4
- 238000010168 coupling process Methods 0.000 claims 4
- 238000005859 coupling reaction Methods 0.000 claims 4
- 238000000465 moulding Methods 0.000 abstract 1
- 238000009415 formwork Methods 0.000 description 30
- 210000001503 joint Anatomy 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/22—Moulds for making units for prefabricated buildings, i.e. units each comprising an important section of at least two limiting planes of a room or space, e.g. cells; Moulds for making prefabricated stair units
- B28B7/225—Moulds for making units for prefabricated buildings, i.e. units each comprising an important section of at least two limiting planes of a room or space, e.g. cells; Moulds for making prefabricated stair units for making stairs or stair units comprising more than one step
Definitions
- the invention relates to a formwork for the production of concrete stairs, which the features of the preamble of the claim 1 has.
- this type of formwork (DE-A-2243250 or DE-U-93 01 085) must follow a change in the tread width for the purpose of adapting the slope to the new one Tread width the angular position of the step formwork elements be corrected what the conversion of the formwork to others Step dimensions somewhat difficult.
- the invention is therefore based on the object of an improved To create formwork of the type mentioned.
- This Task solves a formwork with the features of claim 1, there in the inventive design of the two adjustment devices for the tread width and the step height adjustment corrections are no longer required. For one Changing the tread width only requires one adjustment device, for a change in the step height only the other adjustment device to be operated.
- a formwork for the production of concrete stairs that require a change the tread size, i.e. the tread width, and the Allowed step height, has a standing on a floor 1 Frame 2, in the exemplary embodiment of steel rails is formed.
- the frame 2 forms a flat, in the embodiment horizontal surface.
- On the inside of this carrier 3 is in the area an upper bearing rail 4 of its upper end section and a lower bearing rail 5 at a distance from the lower end arranged.
- Both bearing rails 4 and 5 are in the embodiment Flat rails, the ones facing the other bearing rails Narrow side tapers like a wedge.
- the non-longitudinally movable holder 6 is located itself at one end of the 6 formed by the holder Line. All holders 6 have one at the level of the lower bearing rail 5 parallel to the top of the frame 2 lower leg 7, which with a in the longitudinal direction Bearing rail 5 extending transverse part 7 'is rigidly connected, on the sliding supports 6 on the supports 3 facing side two rollers 8 are overhung.
- Somewhat below the upper bearing rail 4 is parallel to the provided lower leg 7 extending upper leg 9, the rigid with the lower leg 7 by a vertical Traverse 10 and also rigidly connected to a cross member 9 ' is. As with the cross member 7 'are on the cross member 9' the side facing the carriers 3 overhung two upper rollers 12 stored.
- the holder 6 thus have a C-like Shape.
- a guide 13 which the Reliability of the holder 6 in the horizontal direction relative not affected each other.
- an upright first sliding frame 14 in horizontal Direction so guided longitudinally.
- Fig. 1 shows, stands of the two longitudinal spars 14 'of the first sliding frame 14, which engage in the guides 13 on the side facing away from the cross members 10 in the horizontal direction a first cam plate 15 each, all with an identically designed and arranged control slot 15 ' are provided.
- the two fixing bolts 16 engage with their end sections not only in the control slots 15 ', but also in control slots 18 'of two cam plates 18 each, which one of the two longitudinal spars 19 'arranged upright protrude second sliding frame 19 in the horizontal direction.
- the control slots 18 ' have in the embodiment same curved shape as the control slots 15 '.
- the parallel second sliding frame arranged to the first sliding frame 14 19, whose distance from the former from the positions the cam plates 15 and 18 with respect to the fixing bolts 16 depends, is longitudinally movable and movable between the free end sections of upper and lower Swivel arms 20 mounted.
- each of the upper swing arms 20 and on the lower swivel arm 20 aligned with it is in each case the tread delimiting one of the steps of the stairs to be made Tread formwork wall 23 in the axis 22 adjacent area firmly connected.
- the two swivel arms 20 of each holder 6, each of which forms a first positioning element, carry one in the area of their free end Roll 21, which is longitudinally displaceable in the adjacent Reach longitudinal spar 19 '.
- the tread formwork walls 23 bump along the second sliding frame 19 facing away from the long side 23 'on the corresponding Long side of the associated abutment formwork wall 26 or go over here in the last.
- a seal 27 is provided, which usually press on the top of a flat Formwork floor 28 is applied, the height adjustable and transverse to Longitudinal direction of the slidable lock on the frame 2 is arranged. To relieve the seals 27 Formwork floor 28 before adjusting the tread formwork walls 23 and / or the abutment formwork walls 26 lowered and then raised again.
- a scissor drive 29 is provided in the embodiment between the trusses 10 and the beams 3 is arranged.
- Each of the scissor drive's cross joints 29 is pivotally connected to one of the cross members 10. The scissor drive ensures that the distances between two adjacent trusses 10 of the same size in all holders 6 are and that in case of a change all holders 6 with the exception of 3, the stationary holder 6 shown on the right in the required Dimensions shifted in the longitudinal direction of the bearing rails 4 and 5 will.
- two racks 30 in the exemplary embodiment and 31 are provided which extend in the direction of displacement and with a gear 32 or a smaller in diameter Gear 33 mesh, both rotatably on a drive shaft 39 are arranged.
- the rack is 30 articulated with the movable end of the scissor drive 29, the Rack 31 articulated with the second sliding frame 19th connected.
- This carriage 34 carries a second rotary drive, on the arranged parallel to the drive shaft 39 of the other rotary drive Drive shaft 39 two gears 35 and 36 fixed are, the latter of which has a smaller diameter the first one.
- gear 35 meshes a rack 37 which at one end at one stationary trestle 38 is articulated, which is why a rotary movement of the gear 35 causes a longitudinal displacement of the carriage 34.
- a toothed rack meshes with the gear 36, which is smaller in diameter 37 ', which on the other hand is pivotable with the first sliding frame 14 is connected.
- Formwork wall 40 is in a vertical position on a support structure 41 set which is transverse to the longitudinal extension of the stairs to be made slidably arranged on the frame 2 and in a position in which the front formwork wall 40 lies tightly against the formwork floor 28, by means of a Locking device 42 lockable with the formwork floor 28 is.
- the carriage 34 and the two drive shafts 39 and 39 ' can be locked in any selectable position.
- the parallel to the stationary guide rail 43 shown guide rail 44 which can only be moved transversely to its longitudinal extent, represents the lateral displacement of the second sliding frame 19. Its longitudinal displaceability is determined by a a dash-dotted line rod 45 and the cam plates fixed to the two end portions of the rod 45 18 represents.
- the first sliding frame 14 is shown as a rod 46 at its end portions the cam plates 15 are set, the Control curve are supported at a fixed base 47. 6 also shows, the gears 35 and 36th instead of on the carriage 34 on the trestle 38, as this will make it work undergoes no change.
- the tread should be compared to the setting 6 are reduced, then the gears 32nd and 33 counterclockwise when looking in accordance with Fig. 6 rotated. This moves the rack 30 with it coupled end of the scissors drive 29 against the unmovable End. This reduces the distance between two adjacent axes 22 and to the same extent the tread dimension, 6 in a representation according to the length of the swivel arm 20 from the axis 22 to the intersection with the Swivel arm 24 corresponds. Because if only the scissors drive 29 would be operated, the step height would decrease, are by means of the rack 31 and the rod 45 Cam plates 18 also to the right when looking 6 shifted, but in a smaller Dimensions than the rack 30.
- the swivel arms 20 and 24 in 6 clockwise in a viewing direction according to FIG will. This is achieved by moving the cam plates 15 to the right when looking in accordance with Fig. 6, because this makes the guide rail 44 transverse to it Longitudinal extension against the stationary guide rail 43 is moved. The enlargement of the tread size that occurs here to compensate again becomes the Carriage 34 moves in the same direction. As a consequence, that the two racks 30 and 31 6 to the right, when looking in accordance with FIG. 6, thereby reducing the tread size to the extent is achieved by reducing the step height has been enlarged. The same applies to a shift of the cam plates 18 to the left for the purpose of Increasing the step height causes the reduction in Tread by shifting the cam plates 18 compensated in the same direction, so that also in this If only the step height is changed.
- FIGS. 1 to 5 is the rack 30 at the smallest distance from the car 34 having holder 6 articulated, which is why in connection with the scissors drive 29 here also a longitudinal displacement of the rack 30 for a change in the distance of the axes 22 from one another leads. Since the rack 31 simultaneously the second Shift frame 19 with its cam plates 18, what a transverse displacement of the fixing bolts 16 and this transversely displaces the second sliding frame 19 results in a change the step height is kept constant. Corresponding applies to a change in step height, including the rack 37 'to the left or right when looking in accordance with Fig. 2 must be moved because of the centering pin 16 the second sliding frame 19 depending on the sliding direction move towards or away from the axes 22.
- tread formwork walls 23 and the abutment formwork walls 26 changes in the tread size or can adjust the step height
- they are how 5 shows a two-part design in the exemplary embodiment. Only parts 23 'and 26' which are adjacent to axis 22 Collide the longitudinal edge and join together here or are integrally formed, are fixed to the Swivel arms 20 and 24 connected. The other two parts 23 '' and 26 '', which on the through the crossing swivel arms collide defined edge and here with each other are connected or formed in one piece, lie loosely on the Swivel arms 20 and 24 so that they in the longitudinal direction of them load-bearing swivel arms are displaceable.
- sections 23 '' and 26 '' can on the intersecting swivel arms defined edge are held in plant, for example by means of elongated clamping elements 55, which on the other hand are connected to a rod 56, which on the swivel arms in is supported in the manner shown in Fig. 5.
- Fig. 7 differs only by other drive means for longitudinal displacement the holder 6, not shown, which as in the first Embodiment by a scissors drive 129 together are connected, and for the transverse displacement of the only existing Sliding frame 144 in which the rollers 21 are longitudinally displaceable are guided, which are provided on the pivot arms 20 are.
- Carriage 134 which corresponds to carriage 34, is longitudinally displaceable on the bearing rails 104 and 105 of the not shown Carrier 3 stored.
- a first working cylinder 130 is provided, on the one hand on carriage 134 and on the other hand at the movable end of the scissor drive 129 is articulated. It replaces the rack 30 and that Gear 32 and its rotary drive.
- a second cylinder 137 moves the carriage 134 relative to the trestle 138.
- Cam plates is with the movable end of the scissors drive one only in the longitudinal direction of the first working cylinder 130 slidable cam plate 118 is provided.
- cam plate 115 which only in the direction of displacement of the carriage 134 is movable by the latter
- One is located on the control curve 118 'of the control cam plate 118
- Role of a fixedly arranged first control piston 150 which controls a third working cylinder 151, on the one hand to a fixed component of the formwork and on the other on the sliding frame which can be moved transversely to its longitudinal direction 144 is articulated for the rollers 21. So that the movement of the third working cylinder 151 in both directions of movement corresponds to the movements of the control piston 150 are both the control piston 150 and the third working cylinder 151 double acting and with each other via two lines 152 connected.
- the third working cylinder 151 is over two Control lines 153 a double-acting second Control piston 154 connected, the one on the control curve 115 ' the cam plate 115 has adjacent roller. That's why is the position of the second control piston 154 inevitably on the third working cylinder 151 transferred. So you can also with this Embodiment a change in tread size without one Changing the step height and changing the step height without make a change in tread size.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Moulds, Cores, Or Mandrels (AREA)
Description
Es zeigen
- Fig. 1
- eine schematisch dargestellte Ansicht eines ersten Ausführungsbeispiels bei einer Blickrichtung in der Längsrichtung der Schalung,
- Fig. 2
- einen schematisch dargestellten Schnitt nach der Linie II-II der Fig. 1,
- Fig. 3
- einen unvollständig dargestellten Schnitt nach der Linie III-III der Fig. 1,
- Fig. 4 und 5
- je einen vergrößert dargestellten Ausschnitt aus Fig. 3,
- Fig. 6
- eine Darstellung des Funktionsprinzips der beiden Verstellvorrichtungen,
- Fig. 7
- eine schematische Darstellung der beiden Verstellvorrichtungen eines zweiten Ausführungsbeispiels.
Claims (10)
- Schalung zur Herstellung von Betontreppen mit den Schalungswänden für die Auftrittsfläche und die Stoßfläche je einer Stufe zugeordneten Positionierelementen (20,24), die oberhalb eines Schalungsbodens (28) in einer zickzackförmigen Reihe im Wechsel aufeinanderfolgend angeordnet, je um eine zum Schalungsboden lotrechte Achse (22) schwenkbar in einer Halterung (6) gelagert und sowohl hinsichtlich ihrer Winkellage als auch hinsichtlich des Abstandes der benachbarten Achsen (22) voneinander zur Einstellung der Stufenhöhe und der Auftrittsbreite mittels einer ersten (14,15,29,34 bis 38; 118,137,154) und einer zweiten (18,19,29 bis 33; 115,129,139,134,150) Verstellvorrichtung gemeinsam verstellbar und in wählbaren Stellungen feststellbar sind, wobei die zweite Verstellvorrichtung (18,19,29 bis 33; 115,129,130,134,150) für eine Änderung der Auftrittsbreite ohne eine Änderung der Stufenhöhe ausgebildet ist, dadurch gekennzeichnet, daß auch die erste Verstellvorrichtung (14,15,29,34 bis 38; 118,137,154) für eine Änderung der Stufenhöhe ohne eine Änderung der Auftrittsbreite ausgebildet ist.
- Schalung nach Anspruch 1, dadurch gekennzeichnet, daß ein Schwenkantrieb (14, 15, 18, 19) vorgesehen ist, der einerseits mit jeder der Achsen (22) und/oder deren Positionierelementen gekuppelt und andererseits mittels des Antriebsteils (30 bis 37, 39, 39') beider Verstellvorrichtungen betätigbar ist, daß der Schwenkantrieb für jede der Achsen (22) einen Schwenkarm (20) aufweist, alle Schwenkarme einen spitzen Winkel gleicher Größe mit der Verschieberichtung der Achsen (22) einschließen und in gleichem Abstand von der zugeordneten Achse (22) schwenkbar und längsverschiebbar in einer zur Verschieberichtung der Achsen (22) parallelen Führung (19', 44, 144) geführt sind, deren Abstand von der Führung (4, 5) der Achsen (22) zum Zwecke der Verschwenkung der Schwenkarme (20) veränderbar ist, und daß für eine Querverschiebung der geradlinigen Führung (19', 44, 144) der Schwenkarme (20) zwei in Längsrichtung dieser Führung verschiebbare Schieber (14, 19) mit wenigstens je einer die Querverschiebung bestimmenden Steuerkurve (15, 18; 115, 118) vorgesehen sind.
- Schalung nach Anspruch 2, dadurch gekennzeichnet, daß der Schwenkarm (20) sich in der Erstreckungsrichtung eines der beiden Positionierelemente erstreckt oder eines der Positionierelemente (20, 24) bildet.
- Schalung nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß jede Steuerkurve (15') des einen Schiebers (14) auf einer Steuerkurve (18') des anderen Schiebers (19) zum Zwecke der Addition der von den beiden Steuerkurven (15', 18') bestimmten Querverschiebungsbeträge abgestützt ist.
- Schalung nach Anspruch 2 oder 3, gekennzeichnet durch eine Addition der durch die Steuerkurven (115', 118') festgelegten Querverschiebungsbeträge mit Hilfe wenigstens eines hydraulischen Arbeitszylinders (151) und diesen steuernder, hydraulischer, die Steuerkurven (115', 118') abtastender Steuerkolben (150, 154).
- Schalung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Achsen (22) in einer geraden Führung (4, 5; 104, 105) geführt und mit einer die Abstände zwischen unmittelbar benachbarten Achsen (22) gleich groß sowie bei einer Änderung um den gleichen Betrag verändernden Koppeleinrichtung (29; 129) verbunden sind.
- Schalung nach Anspruch 6, dadurch gekennzeichnet, daß die Koppeleinrichtung als Scherentrieb (29; 129) ausgebildet ist.
- Schalung nach einem der Ansprüche 2 bis 5 und 6 oder 7, dadurch gekennzeichnet, daß die beiden Verstellvorrichtungen einen in Richtung der Führung (4, 5; 43) für die Achsen (22) bewegbaren und in wählbaren Positionen feststellbaren Wagen (34; 134) aufweisen, an den über je eine in beiden Bewegungsrichtungen formschlüssige Mitnahmevorrichtung (30, 31, 37') sowohl die Koppeleinrichtung (29; 129) als auch der Schwenkantrieb angekoppelt sind.
- Schalung nach Anspruch 8, dadurch gekennzeichnet, daß die Mitnahmevorrichtungen als Koppelstangen (30, 31, 37') ausgeführt sind, die wenigstens auf einem Teil ihrer Länge als Zahnstangen ausgebildet sind, und daß diese Zahnstangen mit je einem Zahnrad (32, 33, 36) von zwei Drehantrieben in Eingriff stehen, von denen wenigstens der eine (32, 33) auf dem Wagen (34) angeordnet ist.
- Schalung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß von den Positionierelementen (20, 24) mit Ausnahme der die beiden Enden der Reihe bildenden Positionierelementen jeweils das der Auftrittsfläche zugeordnete Positionierelement (20) mit dem unmittelbar benachbarten, der Stoßfläche zugeordneten Positionierelement (24) unter Einschluß eines Winkels von 90° einstückig ausgebildet oder starr verbunden ist und daß diese Paare von Positionierelementen (20, 24) im Bereich der Winkelspitze von der zugeordneten Achse (22) getragen werden.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4342684A DE4342684C1 (de) | 1993-12-15 | 1993-12-15 | Schalung zur Herstellung von Betontreppen |
| DE4342684 | 1993-12-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0658408A1 EP0658408A1 (de) | 1995-06-21 |
| EP0658408B1 true EP0658408B1 (de) | 1998-09-16 |
Family
ID=6505024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP94119562A Expired - Lifetime EP0658408B1 (de) | 1993-12-15 | 1994-12-10 | Schalung zur Herstellung von Betontreppen |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0658408B1 (de) |
| AT (1) | ATE171100T1 (de) |
| DE (1) | DE4342684C1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19816720C1 (de) * | 1998-04-16 | 1999-07-22 | Harald Schahl | Einstellbare Schalungsvorrichtung zur Herstellung einer Treppe |
| GB2347106B (en) * | 1999-02-23 | 2003-07-02 | Tarmac Uk Ltd | Apparatus for moulding a staircase |
| US8262055B2 (en) | 2006-09-12 | 2012-09-11 | Any Step Technology Limited | Stair forming apparatus and related methods |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2243250C3 (de) * | 1972-09-02 | 1982-03-11 | Heinrich 7434 Riederich Druba | Form zum Herstellen von Treppenläufen aus Beton |
| DE9301085U1 (de) * | 1992-12-10 | 1993-05-19 | Schahl, Harald, 7065 Winterbach | Schalung zur Herstellung von Betontreppen |
-
1993
- 1993-12-15 DE DE4342684A patent/DE4342684C1/de not_active Expired - Fee Related
-
1994
- 1994-12-10 EP EP94119562A patent/EP0658408B1/de not_active Expired - Lifetime
- 1994-12-10 AT AT94119562T patent/ATE171100T1/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| EP0658408A1 (de) | 1995-06-21 |
| ATE171100T1 (de) | 1998-10-15 |
| DE4342684C1 (de) | 1995-04-13 |
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