EP1733107B1

EP1733107B1 - Standing formwork hatches

Info

Publication number: EP1733107B1
Application number: EP05722098A
Authority: EP
Inventors: Arnfinn Saervoll
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-03-11
Filing date: 2005-03-10
Publication date: 2011-08-17
Anticipated expiration: 2025-03-10
Also published as: EP1733107A1; NO20041047L; ATE520843T1; NO20041047D0; WO2005088034A1; NO321441B1

Abstract

Pallet for transporting formwork hatches, where a V-cushion (12) being a link between a crane hook and the pallet, a supporting V-cushion (12) fastened in two tubular sleeve (2) by means of a bolt (5), each hatch secured sideways by at least one vertical tubular support (4), each hatch having a stop list (3) at each side and at each end of the cleading, each hatch having a tubular sleeve (2) at each side of the centre V-cushion (12), the two external hatches of the pallet always having the cleading facing each other and the pallet side inside the hatch side, the distance between two tubular sleeves (2) are adapted hatches with the cleading facing each other, thus to avoid that the pallet occupies storing space, tubular sleeves (2) being fastened at the bottom and the top of a square tube, the tubular sleeves (2) forming feet (6) for interconnecting pallets by inserting tubular supports (4) through the tubular sleeves (2), and that the hatches are self-supporting on the pallet by H-cushion (12) is flush with the cleading at both ends.

Description

The present invention is related to a pallet for standing formwork hatches.
Traditional system formworks of steel are difficult to handle mainly because of heavy weight, and of the same reason all assembling are executed with a crane. Formwork equipment spread across an unnecessary large area at the building site indicates a poor storage routine. Disorder at the building site makes an overview of equipment difficult, and also contributes to impel the first impression of the building site.
A disadvantage with crane transport in connection with formwork assembling is among other things that the parts are hoisted/transported as small items, often with only one hatch size at the time. At the building site the formwork hatches are often transported across large distances. Transporting formwork in small unit by crane across large distances takes time and must often be done at a cost of other work. Lacking crane capacity at a building site may soon mean reduced progress and larger cost incur.
Transport of formwork constitute a substantial cost, externally by the fact that formwork is often transported across large distances to and from the building site, and internally at the building site in that formwork equipment is transported in small units by crane in connection with intermediate storage, assembling, dismountling, loading on truck etc.
With the hatch pallet according to the present invention the above mentioned disadvantages and limitations are avoided as well as further advantages are achieved. This is achieved by the system according to the present invention as disclosed with the features stated in the claim.
Far simpler and less space demanding is to use a pallet with standing hatches for this system. With this arrangement a formwork can be stored, lifted and transported standing. All formworks can be executed with practically only two hatch sizes.
According to the present invention a completely and more rational transport of formworks hatches is possible than by prior system, in that the hatches may be transported standing on pallet, hoisted and transported by a crane, truck and fork lift, among other things. Standing hatches may better utilize a storing space and can also be made more complete with associated scaffold floor, scaffold brackets, framework for corner hatch etc.
Standing hatches on a pallet must be self supporting. Self supporting hatches which also may be laid on top of each other are made possible by making the V-cushion of a hatch which flushes with a cleading in both ends.
In the drawing figure 1 shows the pallet according to the present invention in perspective, figure 2 shows a suspending pallet suspended in hanging hatches, seen from the front, figure 3 shows a suspending pallet fasten to suspending hatches, seen from one side, figure 4 shows stacked pallets, figure 5 shows a pallet with a hand based hatches, figure 6 shows a pallet with bottom hatches, figure 7 shows a pallet with suspending corner hatches, figure 8 shows a suspending main hatch mounted with standing bottom hatch, figure 9 shows a detail of flange clamps for fastening of a bottom hatch to a main hatch by means of profile splices, figure 10 shows a pallet with top hatches, figure 11 shows a pallet with a main hatch with a framework for corner hatch and framework for wall adaptation at the opposite side, figure 12 shows a pallet with a hatch made ready for cleaning, and figure 13 shows a pallet with a laid down hatch for a cover formwork for instance.
The formwork comprises main hatches, bottom hatches and top hatches. The main hatches have modulated hatch sizes and stay hole rows horizontally and vertically. The bracing system is arranged by three layers of profiles, of which two of the layers are horizontal. Channel profiles 10 are laid above horizontal stay hole rows, V-cushions 12 are laid over the vertical stay hole rows and H-cushions are again laid above horizontal stay hole rows. V-cushions 12 are flush with a hatches cleading at the bottom and the top, scaffold floor in two pieces are laid on top of the formwork. (With the H-cushion the external corner hatch is braced and with the H-cushion the distance between vertical stay rows may be varied). The main hatches with bottom and top hatches all consist of only to hatch sizes. Also bottom and to hatches have length and design making them able to be stored and transported on the same type of pallet as the main hatches. The main hatches have stored hatch locks flush mounted in the channel profile 10, stored scaffold floor inserted between V-cushion and cleading and stored scaffold brackets suspended on top of the V-cushions longitudinal side. By making the V-cushion flush with the cleading at bottom and top, makes the hatch self supporting and the scaffold floor get a firm support. Self supporting hatches are necessary for this type of pallet storing, also in respect of storing, scaffolding etc. V-cushion 12 makes possible a simple and quick connecting crane fastening.
Self supporting hatches are made possible by making V-cushions 12 flush with a cleading. Pallet with standing hatches, few hatch sizes and with mounted equipment, hatch locks, alignment profiles 8, scaffold floor and scaffold brackets simplify the overview of the planning as well as the assembling.
In order to make the hatches in place during transport on truck, the bottom panel is mounted with stop lists 3 abutting and slanting towards the two external V-cushions 12 of the hatches. In the direction of driving the pallets have stop lists 3 at both sides of the cleading continuously for each hatch.
In order to make a pallet with hatches not taking up storing space two hatches with cleading are standing towards each other, as shown in figure 2. By making the pallet foot 6 of the same height underneath the pallet as the stop lists 3 and the tubular sleeves 2 above the pallet compact storing of stacked pallet is achieved.
Interconnection of the pallet and crane hook can be done by one or several V-cushions. The most efficient way is that the pallet with the entire load is hoisted by means of a hatch's centre V-cushion 12 in the centre of the pallet using only one hook fastening without spreader.
Standing hatches on pallets is a new principle and has an important function in connection with the rent and a stock hold as well as for planning work and assembling work. Pallets with standing hatches may be transported by a truck, crane and fork lift. Standing hatches take up much less room than laid down hatches, are better weather protected, may be stored and transported with associated scaffold floor, scaffold brackets, hatch locks and alignment profiles. With standing hatches on a pallet a storing routine for improved order, consciously or unconsciously, will be achieved. With standing hatches on a pallet a better utilization of the crane capacity will be achieved due to larger load per hoist. A pallet of different hatch sizes may easily be selected on a pallet with standing hatches. Simple cleaning and lubrication of standing hatches on a pallet are possible. With standing bottom hatches 14 on a pallet suspending main hatch may simply be mounted and dismantled. Standing lightweight hatches will consciously or unconsciously be spared for the rough treatment which heavy hatches with steel frame often are exposed to. Simple securing of truck load with standing hatches on a pallet is possible due to the fact that only the pallet and not the hatches then should be fastened.
With the present invention standing hatches may be transported by means of crane, truck and fork lift. The crane and hand based hatches on the same pallet may easily be chosen and remote. Released tubular supports 4 may be stored lengthways of the pallet and released pallets may be stacked and bind in larger units by means of tubular supports 4, which are inserted in the feet 6 by means of the spline at both ends, before they are lifted. At the building side standing hatches may easily be built higher, laid down for use for cover formwork, prepared with formwork oil in connection with assembling/building and cleaned in connection with dismounting/demolishing. Standing hatches will also take up less room and are better protected against continual/damaging humidity than laid down hatches.
The pallet is made for three module-width hatches. Since the hatches V-cushions 12 are flush with the cleading in both ends, the hatches are self-standing in addition to the fact that two hatches may easily be stacked on top of each other.
In hatch has a tubular sleeve 2 at each side of the centre V-cushion. Each hatch is side supported by means of tubular supports 4 which can be inserted in one of two tubular sleeves 2. A hatch's V-cushion 12 between tubular sleeves 2 may be fastened to the hatch pallet by means of an inserted bolt 5. The hatch pallet is hoisted in that the V-cushion of a hatch is the link between the crane hook and pallet.
The pallet has stop list 3 abutting the hatches two external V-cushions 12 in order to prevent the hatch moving sideways, and two stop lists at both sides of the cleading to prevent that the hatch is moving in the direction of driving during truck transport.
The pallet has two rows of tubular sleeves, on row at each side of a hatch's centre V-cushion 12. A hatch is fastened to the pallet by means of a bolt passing through two tubular supports, stop lists 3, or two tubular sleeves 2 and with V-cushion 12 therein between. A V-cushion fastened to a pallet is also fastened to a crane hook or to a yoke. Each hatch is supported by means of vertical tubular support 4 inserted in an appropriate tubular sleeve 2. The tubular sleeves 2 fastened in the bottom and sealing of a square tube 1, provide a strong bottom fastening.
Stacked pallets may be combined to larger units by means of tubular supports 4 which are inserted and locked to the unit's lower and upper leg by means of bolts 5. Stored tubular supports 4 may be kept in voids or holes 7 in the pallet's side.
Figure 1 shows that the hatch pallet has to rows of tubular sleeves 2 recessed in a centred square tube 1. Each hatch is centred by means of a stop list 3 abutting the inside of the V-cushion 12 and the cleading at each side of a pallet. The tubular support 4 of the pallet inserted in the feet 6 may also be used for combining several pallets stacked on top of each other. By this compact storing of stacked pallets, is achieved. This is achieved by making the foot 6 of the pallet protruding at the same distance beneath the pallet as stop lists 3 and tubular sleeves 2 are protruding above the pallet. Strong side supports is achieved by fastening the tubular sleeves 2 to the bottom and top of the square tube 1.
Figure 3 shows a suspending pallet fastened to suspending hatches and which in turn are fastened to yoke, another and perhaps better solution would be that only the pallet's transverse, centred V-cushion 12 is fastened to the pallet, thereby to avoid use of a spreader.
Figure 2 shows the centre V-cushion 12 of a hatch fastened to the pallet's two side laying tubular sleeves 2 by means of a bolt 5, as seen from the short side of the pallet. The short side has bearing holes 7 for the tubular supports 4.
Figure 4 shows a ready made unit with hatch pallets. The pallets are interconnected by means of two tubular supports 4 inserted in the feet 6 of the pallet and secured by a bolt 5 in each end. The mounted lock bolt 5 for the hook fastening is moved up one step. The tubular supports 4 for the pallets are mounted lengthwise of the pallet.
Figure 5 shows a pallet with lightweight hatches which are side supported, fasten to the pallet and hoisted in the same way as the large hatches. The lightweight hatches are combined with hatch locks and with the alignment profiles 8 for the formwork and flange clamps at top and bottom.
Figure 6 shows a pallet with bottom hatches. Stacked bottom hatches are side supported by means of a rod lowered down in the V-cushions 12. The pallets are lifted by the centre rod 15 of the hatches which then is fastened to the two tubular sleeves 2 of the pallet.
Figure 7 shows a pallet with standing corner hatches interconnected by means of the profile in between the support profiles of the hatches.
Figure 8 shows a suspending large hatch mounted with standing bottom hatch 14.
The bottom hatch is fastened to the large hatch by means of transverse profile and flange clamps.
Figure 9 shows in detail transverse V-cushion 12 and a profile 11 interconnected by means of flange clamps 9.
Figure 10 shows a pallet with top hatches. Due to the top hatches' supporting profiles each two of them are mounted bottom side against bottom side. The top hatches are side supported and lifted by means of rods inserted between the supporting profiles of the hatches.
Figure 11 shows a mounted large hatch with mounted framework for external corner hatch 13 at one side, and with framework 16 for adaptation of a wall length at the opposite side.
Figure 12 shows a mounted framework which is prepared with oil, if necessary, before mounting or cleaned in connection with demolition work.
Figure 13 shows a standing hatch on a pallet bent down and a laying hatch on a pallet bent up. The laying hatch may be used for cover formwork, for example.

Claims

Pallet for transporting formwork hatches, characterized in that a V-cushion (12) is a link between a crane hook and the pallet, a supporting V-cushion (12) being fastened in two tubular sleeves (2) by means of a bolt (5), that each hatch is secured sideways by at least one vertical tubular support (4), that each hatch has a stop list (3) at each side and at each end of the cleading, that each hatch has a tubular sleeve (2) at each side of the center V-cushion (12), that the two external hatches of the pallet always have the cleading facing each other and that the side of the pallet is inside the side of the hatch, that the distance between two tubular sleeves (2) is adapted to two hatches with the cleading facing each other, thus avoiding that the pallet occupies storing space, that tubular sleeves (2) are fastened at the bottom and the top of a square tube, that the tubular sleeves (2) are forming feet (6) for interconnecting pallets by inserting tubular supports (4) through the tubular sleeves (2) and that the hatches are self supporting on the pallet since the V-cushion (12) is flush with the cleading at both ends.