DE1684140A1 - Connection element for scaffolding - Google Patents

Description

1684 HO

(British 35719/65 - priority 19.8.1965

George Charles Boyd Auger

Colin Kämet Lancelot Grant

London, E ^

Hamburg, -Jen 15 August 1966

yerbJ.ndungse.i.ement ^ for scaffolding M

The present invention relates to connecting elements for scaffolding, to a plurality of struts together at their ends to be connected, said struts extending from the junction so apart, that two or more 'levels of the framework are formed connected respectively to each other.

For scaffolding, tubular steel or aluminum struts are preferably used, but they are also made of plastic or made of glass fiber reinforced plastic or any other material, which can be both tensile and can also absorb compressive forces.

One of the main difficulties in scaffolding is that between the ends of several struts, usually the ends of twelve struts directed apart, one satisfactory To create a connection. Bas welding the ends of the diverging struts is neither practical

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still economical; furthermore, the replacement of a defective strut requires considerable difficulties. So far have been Connecting elements for connecting the ends of diverging struts in the form of cylindrical center pieces used, the several serrated slots or Kellflachen which extend radially inward from the outer circumference of the cylindrical center piece and which is parallel to the axis of the cylindrical /, MittelstücKes run from one end to the other. The ends of the struts are fitted into these openings, soft have tubular deformed parts at their ends which fit into correspondingly shaped and slotted elements will. After the deformed ends of the struts are inserted into the corresponding grooves, they are held in place by cover disks which over the ends of the slots at each end of the cylindrical middle section through a Screw are fastened through an axial hole in the Middle piece is guided and attached at this point. With such an arrangement one can see the ends from radially from the Central piece connecting diverging struts at the junction in a plane perpendicular to its axis and one can further connect strivings whenever they lie in an axial plane «simply by the ends are deformed accordingly so that guide grooves are obtained at a suitable angle.

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In the case of a scaffold, all struts that come from a connection point should be strive apart in the ideal case ^ diverge from a single common point, so that the pressure and ZugkruTte from a strut nn this connection point the others are transmitted without any torsional or Shear lifts occur. With a center piece or connector ea is of the kind described above in many forms very difficult to achieve this effect, since the axial ! length is limited by weight and cost. Similar Qesichta points limit the radius and 3ornlt the number of Notches that can be cut into the center piece around its perimeter. The Grooves can only be made in a limited number.

Another known connecting element uses a spherical member from which several tubular extensions extend. The tubular struts are attached to this central piece, indene mm, the ends on the herverstehenden extensions Ec'.i * OLT and the barks d ^ jin ralt sirer screw fastened passing ..urch the strut and through the extension piece. With connecting elements of this type, it is possible to achieve that all the protruding extensions provide a clearance. However, these connection openings have the disadvantage that the volume of the sphere must be very large, so that sufficient protruding extensions can be provided

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Nan, for example, such a piece of aluminum For sixty-one pieces of tubular struts, one would have to make spherical middle sections with a weight of about 100 legs. Such middle pieces can be removed during assembly of the scaffolding are difficult to handle and are also difficult to handle the material used is quite expensive.

A connecting element is now required to remedy this disadvantage proposed for scaffolding, with which the above Disadvantages are avoided, with a much more economical connecting element, both with respect to the Weight as well as in terms of costs is created " which is easy to use for scaffolding.

IrflndungegeaXe is proposed "in connection element for scaffolding % \ m connecting several struts at one connection point in the scaffolding, the connecting element consisting of several flat webs intersecting one another, a set of these webs being arranged in a first plane and each plan area has, to which one end of a strut can be attached in a plane of the scaffolding, while the other webs form further such seats in further eberia perpendicular to this first plane that are equiangularly spaced from one another, so that this first plane through a strut line of each of these further Levels leads and that

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all other levels meet on a line which lies on the axis of symmetry of this first level, with these other webs have splash areas to which the ends of the struts can be attached at the junction, which this one level with the other level of the east associate.

Each set of ridges can be in the shape of a full M.

Disc or other symmetrical planar element of various shapes, e.g. rectangular or be rhombus-shaped. In a simple embodiment according to the invention, one disc is the first level of the connector and two more Slices, which must be arranged so that they can be placed in a · « Are at an angle of 90 ° to each other and are concentric and perpendicular to the first plane. Such a connector enables four struts to be attached in one level of the framework and four connecting struts from ™ above and below, which are connected at their other ends to two other levels of the framework. A middle piece with three further panes, six struts can connect to one another in one level of the framework and also six struts from above and below .. Such middle pieces usually have a weight of only 16 to 20 kg, around 6-sölllge Tube struts to connect with each other, while at the Ubliebift Middle pieces those with a weight of 100 kg and more should be used.

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In another embodiment of the middle piece, the first set of webs can form a full-length disk or some other symmetrical planar element, and three further sets of webs can then be seen, each of which forms the eastern part of half of this planar link which is formed by the first set of S ⁴ ; ege », each set forming an angle of 120 ° to one another and connected to the axis of symmetry of the complete planar limb. With such a middle piece, three connecting struts can be attached from above and below and either three or six struts can be attached in the plane of the OerUstes, whereby in the latter case there are two plan overhangs for each web of the first set.

The flange areas on the webs can be designed in such a way that a strut is attached by means of a hole, which leads through the strut, in which a screw and a nut or bolt attached when assembling will. Optionally, the ends of the struts can also be welded to the flanges in this position · One special preferred foi * m of the attachment of the struts, which a Allowing easy assembly, and securing the struts well to the center piece, consists in having straight ribs and incised notches on the edge of each Steges ^ in the flange area so that the end of a Strut «which also have corresponding notches or ribs

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provided let. Engaged with these indentations will. The struts can be securely attached in dlecen recesses, if necessary with screwed-on caps or tabs that reach past the end of the notch, and if multiple wells in the same general level meet, so an .olnz? .ge cap was allowed for everyone Striving is enough.

The invented MQe body can consist of a number Identical individual elements consist, with each element consists of three webs, one of which belongs to the first sentence and another to two of the further sentences of jetties. Since each unit is composed of three bars, but each bar is double, it can be seen that the Number of units is two thirds of the bars, if the complete middle stuok by connecting all units is formed. The ends of the struts can very easily be attached to such a middle section by Each end wedged between the two parts of a web, then all three links, for example, with a bolt connected to each other · which runs through all three links. Om a Mltteletuck from three identical plans Rectangular limbs «you need eight identical units, each unit from three plates in Fora .von right angled isosceles triangles formed 1st, and the panels having a unitary structure with their

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Form right angled corners together and make each panel perpendicular stands by the other two. A middle section of this Kind can be made of aluminum, v .., bel min die The required strength is already obtained for middle pieces with a weight of 8 kg and this middle piece for 6-inch pieces Hohre can use.

Preferably, the units should be dealt with; In this form, three webs are formed as a single sheet of material, the middle part of the arc forming a connecting piece from which the webs are bent so that they have the required angle to one another. Since such a unit is cut from a sheet or sheet metal, it is not necessary to weld the webs to one another, which is a considerable advantage. The used material can have any shape, but if the unit consists of an arch in the form of an equilateral triangle and the three corners are bent at an angle of 125 ° to the connecting piece in the form of an equilateral triangle in the middle, see below one obtains a gown member which is constructed from eight such units and which has the general configuration of an element which also has. ·; consists of three complete flat parts as described above.

Of course, take the Mltteistüoke at the extreme or innermost; Level of a scaffold only the connecting struts

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on that come from one side. An invention is therefore unambiguous Middle pieces, which have a complete i> itz webs for the Have the level of the scaffolding, but only half the number of the ridges in another set so that there are no more ridges on one side of the first set of the There are bridges. Such middle pieces or connecting pieces are particularly suitable for scaffolding ("space deck" Gerüsfce), which have only two levels of struts.

The invention also includes such connectors or center pieces in which any set of webs in a plane is modified somewhat so that they have no plane of symmetry or no center of symmetry. If one odsr more Bridges in one set differ slightly from the others, so this irregularity can be of one or more Bridges are ignored, since one can theoretically change the symmetry by adding or subtracting from the shape of the irregular Can restore webs.

The present invention also encompasses the complete framework or parts of such frameworks when they are combined with the inventive Connecting elements have been made when the ends of the struts are attached to the pool are fastened by screws, welding or bolts. Although screws or bolts are preferred, the central parts or connecting elements can be welded particularly well

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because there is very great contact between the areas of the piano and the edges of the linden of the struts. When welding, it is usually easier to finish larger sections of the scaffolding a.-n Beden and then to screw them in place.

In the following, the invention should be detailed with reference to drawings be explained; show it:

Pig. 1 - a perspective view of a connecting element according to the invention;

Pig. Fig. 2 is a perspective view of a further form of connecting element;

FIG. J) - a connection element in a perspective illustration according to FIG. 1, but with a different form of the connection means; FIG.

FIG. 4 shows a plan view of a modified connecting element according to FIG. 1, where it can be seen how FIG Units of the connector to produce the seed connector are matched can;

Fig. 5 is a perspective view of a unit of the connector shown in Pig * 4;

Fig. 6 - a modified unit of a connecting element according to FIG. 5;

PIg. 7 - another form of compound compounds element as in PIg. 4 shown;

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Pig. · - one · Unit that is connected to a pe- • aHG KIk. 7 can be used;

PIg. ^f J - a view of a connecting element, which, special ?; suitable for a "üpnce-d-ck"framework;

FlK. 10 - a composite part, which in connection joins the connector according to Pig. <J in the production »of such a framework can be used.

Pns in pip * ge / eipte connecting element 1 consists of a eini'.H'hen uniform 0u3stUck, which the phone of three

> iiii: If netralen uiitereinrvnder nchn ^ ldeiuien, ncheibenf ( "rni ^ s I'lnVtt" :: Γ, 'and ^ besitrt, where d ^J e »xhnit t. chse of the third J * and 4 renkrecht .u? the level of the other * 'l * it * e stands V. Each achfiibenrC'rmipe Pln ^ -tt "is ijcmit divided by the other two plates into four parts, and i was in four right-angled sections 5» so thin that the connecting element inageoont twelve flanges 5, each of which has the oeotnlt of a QO ° sector and wcbel every flange has an opening t> which runs along the center line 7 which divides this sector-shaped flange 5 into two parts or two sectors. This can be done on each such flange one end of a strut can be attached, which has the shape of a tube, the end of which is flattened and tu an angle of 45 ° ru of the strut axis on both rare fe-eechnitten Is:, so that the strut has a right-angled Sp

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which fits on one of the sector-shaped flanges 5; Furthermore, the strut has an opening along the strut axis, so that when the pointed end of the struts lies against the other two disc-shaped plates, the opening in the strut coincides with the opening 6 in the plan and strut and MlttelstUck by a bolt or a Screw can be connected to each other through the two openings. The end of the strut can be fork-shaped so that the two parts can be attached before fastening run forward on both sides of the flange.

With such a simple but effective arrangement you can all struts that extend from the connector 3, one essentially have a common center from which they diverge. Nevertheless, the struts simply assemble or disassemble and transfer them the compressive forces on the middle piece mainly above the stop between the pointed end of the strut and the other disc-shaped plates while the tensile forces over the bolt or screw are transferred, which of course must be formed from such a material, that withstands the occurring shear forces; these forces are in each case due to the frictional engagement between the end of the Struts and the flange to which it is attached, diminished.

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A very significant advantage of the present design is that the struts in ier optimal direction of the scaffolding in a particularly preferred scaffolding Striving apart from one another - there are never four strivings in it Level each disc-shaped platto and each of these four Striving is perpendicular to and diametrically opposed to the suffering of others opposite to the fourth, while the fourth strut in the Layers of every other disk-shaped plate lies, like those plates in the planes perpendicular to each other and perpendicular to the first-mentioned plane. So you have four Struts that lie in a horizontal plane, for example, while four struts from this horizontal plane extend upwards at an angle of 45 °, while the other on four struts at an angle of 45 ° downwards range, with the struts directed upwards and downwards lying in vertical planes, give way to the right ones Divide the angle between the vertical planes, in which corresponding opposing pairs of the horizontal Striving lie. With such an arrangement, it is possible to build a scaffolding, with dam one in every level is given a rectangular configuration by the struts that connect the connectors together, the connectors in a plane directly above the Center of the rectangles are arranged, which are formed in the next lower level.

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The connecting piece 8 shown in FIG. 2 corresponds essentially to the connecting piece 1 according to FIG. 1, but now not three but four diametrically intersecting disc-shaped plates 9,10,11 and 12 are provided, of which three plates 10,11,12 intersect along a common diametrical axis, but each at an angle of 60 ° to the the other two, the fourth plate being perpendicular to the axis of the intersection of the other three and each of these intersecting at its center of the radius. If the fourth plate 9 lies in a horizontal plane, there are six 60 ° sectors in the form of flanges 13 in the horizontal plane, each of which has openings 16 at points along the center lines 18, which are the 60 ° sectors or flanges subdivide; there are also six flanges in the form of 90 ° sectors 14 above the horizontal plane and six further flanges 15 in the form of 90 ° sectors below the horizontal plane, all of these flanges being in the form of 90 ° sectors, namely the flanges 14 and 15 have openings at points 16 which lie along the smock line 17 which divides these flanges. With such a connector you can connect a total of eighteen struts that strut apart from the connector, six of these struts have an angle of 60 ° to each other and lie in the horizontal plane, while aechs struts from this horizontal plane at an angle of

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45 ° upwards and another six struts under one Lead an angle of 45 ° downwards, whereby the struts pointing upwards and downwards are in vertical planes, which divide the angles of 60 ° between the vertical planes in which opposite pairs of the horizontal struts lie. With such an arrangement can a framework is made »in which a triangular formation is obtained in every plane, namely through the struts, which connect the connectors to one another, the connectors in a plane directly above the The center of the triangle «are formed in the next lower level.

The middle section 19 inclined in Pig · J> corresponds to that in Pig. 1, but a different connection method is now used for the struts. In this illustration, the corners of the connecting piece are shown cut for better understanding. The connecting piece 1 consists of three square plates A, B and C, each of which is divided into quarter sections, three of which are recognizable for each plate or disc and are designated with the index 1,2 and> accordingly. The corners of each square plate part A, B, C are cut away so that a cross-shaped end 20 is formed at the connection points where four sectors meet, such as A1, A2, B2, BJ.

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The connector 19 has in each edge where the struts are to be connected a ribbed and notched recess 21 into which the end of a strut can be pushed; the strut has a corresponding notched or ribbed shape at this end. When four adjacent struts have been inserted, they can be held at one end by a plate which is placed over the cross-shaped end 20 and is held in the bore 2 <i by a screw.

Such a connecting piece 19 can be used very well in the construction of scaffolding with different spacing, since the struts can be easily and quickly connected to one another.

Pig. 4 shows a modified version of that in Pig. I shown connecting piece, which differs from this only in that each of the three disc-shaped plates 2, 3 and 4 according to Pig. 1 are divided in the plane of the plates into two separate but overlapping plates, so that overall the connector according to Pig. K consists of eight identical units 23, one of which is in Pig. 5 shown 1st. 5 clearly shows that the connecting piece can easily be assembled from individual units by screwing or bolting the individual units to one another, specifically by means of the openings 6,

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namely at the point in time at which the ends of the struts In attached to their position.

Fig. 6 shows such a unit for a connecting element according to Flg. 4; this figure also clearly shows how the weight of the connector can be reduced by forming the side surfaces 2B, ^ B and 4B, which to the flanges 5 (Fig. 1}, when all these units are put together, as triangular surfaces and not as 90 ° segments of a circle like plates 2A, JA and 4A in Fig. 5. Plates 2B, JB and 4B are further reduced in size at midpoint 24 where a triangular section of material has been removed and at the other two cusps of the triangles, making here one Minimum weight is reached; nevertheless, these elements are large and strong enough to attach the end of a strut to them wear three points where the holes 6A, 6B and 6C are present.

The struts, which with a middle piece according to Fig. 4 and Flg. or according to Fig. 6 "can be flattened again so that they can be pushed between the flanges of two units of the connector and held there by the bolts or screws, which" through "the openings in the two flanges and in the End of the struts are guided, and the struts between

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these two splashes are pressed in. The shape of the flattened end of the strut must of course be such that it fits into fits the area formed by each flange.

Correspondingly, you can also use a connector according to FIG Form the shape shown in FIG. 4 so that it has the shape of the connecting piece shown in FIG. In this case 31 Of course, you need twelve units to complete the whole To obtain connector; the individual units look like the unit shown in FIG. 5, where however, instead of the angle of 90 ° between the surfaces 3A and 4A, there is an angle of 60 °.

The in Flg. 3 connector 19 shown on IKSt Wish auoh from eight identical units, whereby Each unit consists of three firmly connected sectors resembling sectors A2, B2 and C2 with the center of the notch 21 cut down in each side. Such units can be welded or bolted together, lying sectors are connected to each other.

Another embodiment of a composite connecting piece with an embodiment according to FIG. 1 1st in Fig. * 7 shown. This composite connector consists of eight identical units 26, which in Fig.

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have shown form. Each Einho 'c ? * I is originally formed from a flat sheet of metal in foim: equilateral drelocks! I: U. ΙΊο .1 '·· ?! "ilo-.i liifcon · - 'crcr'..-.; z:. " \. n I ^ rt-icc. ·; γ »· 3« inJ ':: »con ni. "", l-nzc ic: r ο tin ΜλΙ «ι · γ. '·.»; ::., bor. _c * coo>;: -n, hi. · el «; cir« i ür; on Uer ι "¹; ^a nsc '.. e. "j *: .- ¹ U .i'i.icer. of« * vn Γ 5 °: ■>; cor small G.'Vzi ^ ri'Ohe '.ι: ' · t.- -ir.ev gloici ; r; et t l. \ * 3: i LT ^ Äi '^ ks.'"biKien. ιι ~ · ~ Cie i :: - ^: - -l ^! i; .>"'ers.iektivr ¹ w'c i'i»''i;'.'{.- · ^Λ el - "' ^ Λ .j:" iivii ^ «'-> -i - -" · '-'rrin Man dir: ΊΙ'.η · ;! ur Herctollurv, four "'. content?'"". * .: cf; tnr": i ;,: "o koiiicw three I rather JO in Jed" the triangular? o *. Pl-jK-chtcile S? stamped will.

Eight lines in the shape of a flute. ti result in a complete binding piece, if you put them together. 7, which can be used for an OertLnt. 3a G? ri '^ tbftu be the flattened line. . JerJtreten ^ viici.on the flanges 28 of two over ^r .. t .rrer units 2 (> gel eg * ima between two dier.en by ^ -. H> ^ ei2er ittols Huttor ι and screws or by Bulzsn. When the. ° t 'are evenly attached to all the flansor.on, a stable and complete connecting piece is formed. The units Tc gerK2 Fi ^ :. 8, the dr.s ruRrrrx-.enosed connecting piece Γ.5: 8 Fig. T result, have some extra advantages over the arrangement shown in Fig. 5, namely the former results in a very stable construction so that S ™ can reduce the weight even further

168A140

Construction is such that the ends of the attached Struts not cut, frozen or conical have to be, but just let it fit in, by flattening the ends and attaching Li'chor. Furthermore is it possible. Each unit 26 can be manufactured without welding or other fasteners while it is being connected the three flanges ^ A, 2A and 4A for the production of the in Fig. unit 23 shown is required.

Understandably, the twelve pr: re faces 28 according to FIG. 7 are only arranged at right angles to one another, since the base areas of the triangles 29 of each unit 2 are all equilateral triangles. If it is desired that the struts which connect a plane with the adjacent plane should emerge from the connecting piece at an angle other than K $ ° to the plane itself, the connecting element 26 must be shaped so that the triangular Base area is not equilateral but only isosceles.

All of the connecting pieces described relate to two special forms of scaffolding or framework scaffolding. The connection pieces can also be used for other scaffolding shapes can be used, but the connecting piece then something can be modified. With so-called top scaffolding, which consist of two layers «become two different connectors used, which one

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rectangular arrangement of struts in one plane, e.g. in the lower level and another rectangular arrangement of struts in the other upper level. The length the struts in the upper level is equal to the diagonal of the pike corners in the lower level and the struts in the The upper level are set diagonally to the lower rectangles, with the upper connecting pieces above the center of the lower rectangles.

Pig. 9 shows a connector 3 to which four Struts in the upper level and four connecting struts from the lower level. The level struts are attached to the connector 31 via the four holes 32 attached «while the connecting struts over the three Holes 33 are attached. This connector can be used upon request form with depressions on the edge, as shown in Flg. 3 is shown, or it can be made up of four identical ones Create units that are back to back with each other are screwed, with the connecting struts being clamped between these backs, namely with the planar struts between the connector 31 and a lower plate of the gleiohan shape like the base of the connecting element it 31 trapped boil. The special construction of the blending tea 31 is required as the plan struts and the Strive for connection in the same vertical planes

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- 22 run the link.

Another form of a union: it is for the lower level required because there are only two connecting struts to each connecting element in a vertical Level, which are at an angle of 45 ° or 135 ° to the two perpendicular planes in which they plan

Striving lie. Such a connecting element is in Fig. 10 and consists of three rectangular plates J, K, L, two of which are curved around their diagonals, like this that they each form two contiguous triangular plates Kl, K2 and Ll or L2 at right angles to one another. the flat struts are fastened between the plate J and the triangular parts K2 and L2 by fasteners, which lead through the holes 3 ^, while the connecting struts in a similar manner between the triangular plates Kl and Ll are attached by means of the holes j55 »Of course this connecting element can also be shaped as an individual element, as shown for example in Fig. 9, and it can then also have edges with depressions to the To attach the ends of the struts.

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Claims (1)

168 A HO 73 (British 55719/65 - prio August 19, 1965 4399) George Charles Boyd Auger London on ,, E ngland Colin Kasset Lancelot Grant London ,, Etagland Haaburg, August 15, 1966 Godparents ta η a ρ r * ic he /1. perbverbindaeloingnt for scaffolding to multiple struts to connect to a connection point in a scaffolding, characterized in that the connecting element from several flat bars that cross each other ordered, with a first set of these webs in a is arranged on the first level and each flange herelohe has «to which one of the connecting struts can be attached in a plane of the framework, while the other webs further seats in mutually equiangular ett spaced apart further planes form perpendicular to the first plane, so that this Level through a «syewtria line. Each of the other two Levels hoof t and d * 8 all other levels on one line see meet, turn on the syaeaetrieachae of the first Level reads and that the other bridges have splash areas "at which" at one end of the struts at the 168 A UQ Can attach connection point, which the one level connects with the other level of the framework. 2. Connecting element according to claim 1, characterized in that it consists of several identical compliance, Each unit has three bars, one from the first set of bars and one from each two other sets of ridges and that the number of units is two thirds of the number of ridges in the full fastener. 3. The connecting element according to claim 2, characterized in that the three webs of each unit have been formed from a single sheet of material, the central part of this bend forming the connecting piece from which the webs are bent so that they are in the required At an angle to each other. ₃ %. Connecting element according to claim 1 - J, characterized in that each set of webs is a symmetrical plane Forms limb of circular rectangular oblong or acute-angled pore. 5. Connecting element according to claims 1-4, characterized in that two further sets of webs are provided SlJDd. . "■ ' 10S8TÖ / O662 BATH ORIGINAL 1684H0 6. Connecting element according to claims 1-4, characterized in that that drsi provided further sets of webs are. 7. Connecting element according to claim 6, characterized in that » that the four other sets of Siegen under each other look at an equal angle of 120 °. 8. Connecting element according to claim 1-7 * characterized in that that two or more paddling areas are provided for each jetty »ind. 9. Connecting element according to claims 1-8, characterized in that the flange areas have at least one hole have to attach the end of a strut by means of bolts or screws. 10. Connecting element according to claim 1-8, characterized in that there are provided in the edge of each land in Flanschbarelch straight notches with corrugated walls, so that the end of the strut can be pushed with a corresponding notch in one end of the notch. 11. Connecting element according to claim 10, characterized in that that end pieces or caps are provided which are fastened over the open ends of the notches in the webs can be. 109810/0662 12. Connecting element according to claim "1 - -IJ, characterized in that dc.3 ec consists of:" complete set of webs in the first plane and the llliirte of webs in the other cia ^ z, so that there is on one side of the first set of webs no webs are present. 109810/0662 BATH ORIGINAL Vr. tar side