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
  • E04G7/00—Connections between parts of the scaffold
  • E04G7/30—Scaffolding bars or members with non-detachably fixed coupling elements
  • E04G7/302—Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members
  • E04G7/303—Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members the added coupling elements are only fixed at one of the bars or members to connect
  • E04G7/305—Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members the added coupling elements are only fixed at one of the bars or members to connect without tying means for connecting the bars or members
• • 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
  • E04G5/00—Component parts or accessories for scaffolds
  • E04G5/16—Struts or stiffening rods, e.g. diagonal rods

Definitions

• the invention relates to a scaffolding, in particular facade scaffolding according to the preamble of claim 1.
• Such facade scaffolds are e.g. known from DE 196 33 091 AI and generally serve to be erected in front of the facade of a building in order to work on it, e.g. Plastering or painting work.
• the diagonal supports which serve to stabilize the scaffold against horizontal displacements normally extend from a point directly above a cross strut to a point of the adjacent vertical strut which is located slightly below the cross strut arranged above it.
• the diagonal supports must be attached to the vertical supports so that both tensile and compressive forces can be exerted by the vertical supports on the diagonal supports.
• tilting fingers projecting forward are provided at the relevant points of the vertical supports, onto which complementary bores are pushed onto the ends of the diagonal supports.
• suitable fittings are welded onto the vertical supports at the relevant points, with which the ends of the diagonal supports can be brought into the required engagement.
• the disadvantage of the known scaffolding is that the diagonal supports exert torsional moments on the vertical supports when stressed and that special components have to be attached to the vertical supports in order to be able to fasten the diagonal supports.
• the aim of the present invention is to provide a scaffold of the type mentioned, in which no special components have to be provided on the vertical supports for the fastening of the diagonal supports and in which at least no significant torsional moments are exerted by the diagonal supports on the vertical supports.
• the idea of the invention is therefore to be seen in the fact that the ends of the diagonal supports can be attached via hooks directly to openings provided in the relevant places, in particular elongated holes of the vertical supports, the position of the openings being such that neither pulling nor pulling is carried out Compressive forces on the diagonal supports are transmitted to the vertical supports.
• the structural outlay for the scaffolding according to the invention minimized, but also the vigorous training otherwise required for absorbing torsional moments can be avoided.
• the embodiment according to claim 22 is advantageous because it can thereby prevent the hook of the diagonal support, which is to be arranged below, from being accidentally hooked into an opening of the vertical support at the top, which would then have the consequence that the hook now located on the lower side could no longer be secured by means of bolt locking by gravity.
• the embodiment according to claim 23 ensures that diagonal supports can be attached to either side of a vertical support at any height.
• FIG. 1 is a schematic perspective view of a facade scaffold under construction, which can be formed according to the invention
• FIG. 2 shows an enlarged partial view of a vertical support designed according to the invention in the horizontal direction running parallel to the building, specifically in the region of the connection of a cross strut with a base plate thereon
• Fig. 3 is a partial front view of an inventive
• FIG. 4 is a view analogous to FIG. 3, the upper fastening of the diagonal support being unlocked in preparation for dismantling the diagonal support,
• FIG. 5 shows the lower part of FIGS. 3 and 4 in the phase during the insertion or removal of the lower end of the diagonal support in or from an elongated hole of the vertical support
• FIG. 6 is a side view of a diagonal support according to the invention on a somewhat reduced scale
• FIG. 8 is a partially sectioned side view of the upper part of a further embodiment of a diagonal support suspended in a vertical support in the unlocked state
• Fig. 10 is the same view as Fig. 8 in the locked state
• FIG. 11 shows a section along line XI-XI in FIG. 10.
• FIG. 1 is a facade scaffolding on a building 37 under construction.
• the base frame 41 has no cross struts in the lower area so that a passage can be provided there, for example for pedestrians.
• support frames 43 are plugged on, which are composed of individual elements 11 ′ which form vertical supports 11 and horizontal cross struts 12.
• numerous support frames 43 are optionally interposed with the interposition of individual elements 11 'not connected with cross struts 12 such that a cross strut is at a vertical distance from floors A, B, C, D, E and F. 12 is present.
• a total of seven support frame arrangements of vertically superimposed support frames 43 with cross struts 12 each at the same height are provided at regular intervals.
• the narrow sides of rectangular base plates 13 are detachably placed on two cross struts 12 arranged alongside one another along the structure 37.
• the facade scaffolding also has two auxiliary scaffolds 44 and 45 projecting forward.
• railings 40, 47 are attached to the vertical supports 11 at a suitable height laterally and on the end faces.
• straps 42 are detachably fastened at the bottom, which should prevent tools lying on the base plates 13 from being moved laterally over the base plates 13 pushed out and can fall down from the facade scaffolding.
• the cross struts 12 consist of two mutually parallel spaced vertical supports 11 by welding or a releasable type of fastening rail profiles 14, 14 ', behind which in the manner schematically indicated in FIGS. 2 to 5 hook-shaped projections 13 'can engage at the ends of the base plates 13 in order to releasably support the base plates 13 on the cross struts 12.
• a diagonal support 27 has a downward-pointing hook 15 at its upper end and also a downward-pointing hook 15 'at its lower end.
• the vertical supports 11 have an elongated hole 16 laterally immediately below a cross strut 12 and a further elongated hole 16 ′ directly above the cross strut 12, the longitudinal directions of the elongated holes being parallel to the axis 17 of the vertical support 11.
• the lower hook 15 'and the elongated hole 16' located above each cross strut 12 are designed such that the hook 15 'can be inserted essentially horizontally into the elongated hole 16' when the vertical support 27 is folded down according to FIG. 5 and by subsequently folding up the vertical support 27 into the position according to FIGS. 3, 4, the hook 15 'is pivoted downward and in this position produces a fixed connection between the vertical support 11 and the diagonal support 27 which is subjected to tensile and compressive stress.
• the upper hook 15 is shaped so that it can be inserted horizontally into the elongated hole 16 below the cross strut 12 in the end angular position of the vertical support 27 shown in FIGS. 3 and 4 and then by lowering it over the lower edge of the elongated hole 16 in 3 and 4 can be brought into the hanging position.
• the diagonal support 27 is already sufficiently secured both against tensile forces and against compressive forces on the two vertical supports 11 connected to it, because when pressure forces are exerted, the hook 15 can at most reach the upper edge of the elongated hole 16 slide up, where it is held. When the pressure forces decrease, the hook 15 then slides back into its lower hanging position.
• a locking pin 19 is provided above the hook 15, which is slidably mounted in a guide opening 24 on the vertical support 11 towards and away from it.
• the locking pin 19 has a downwardly extending projection 28, which with a complementary stop 20 on the Fenden end of the diagonal support 27 cooperates in such a way that when the projection 28 engages behind the stop 20, a retraction of the locking pin 19 from the locking position shown in Fig. 3 is impossible.
• the abutting end faces 29, 30 of the locking pin 19 on the one hand and the stop 20 on the other hand are arranged perpendicular to the axis 31 of the locking pin 19 such that the end faces 29 are displaced in the direction of arrow P in FIG. 3 by a displacement of the end region of the locking pin 19 , 30 disengaged and thereby a return movement of the locking pin 19 is made possible.
• a transverse joint 26 is provided in the rear region of the pivot 19, on which an actuating lever having an inverted U-shaped cross section (FIG. 7) 21 is articulated, which extends obliquely downwards and to the vertical support 11 in the locking position according to FIG. 3 and has a link recess 23 at a clear distance from the transverse joint 26, which recess sits on a cross pin 22 which is fastened in the end region of the cross strut 27.
• identical recesses 23 and pins 22 should be provided in both legs of the actuating lever 21.
• the actuating lever 21 In the locked position, the actuating lever 21 is pulled down by gravity due to the fact that its area in front of the transverse joint 26 is overweight, so that a torque is exerted on the actuating lever 21 in the direction of arrow S in FIG. 3.
• the pin 22 In the locking position, the pin 22 bears against the upper end of the link recess 23. From there, the backdrop recess initially extends on a circular path around the transverse joint 26 to finally turn downward from a corner region 23 '(FIG. 3) into a substantially straight piece 23 ".
• the corner region 23' is arranged at such an angular distance from the upper end of the link recess 23 in FIG. 3 that when the actuating lever 21 is pivoted against the arrow S in Fig.
• the elongated holes 16, 16 ' lie in the plane defined by the axes 17 of the two adjacent vertical supports 11, between which a specific diagonal support 27 extends according to FIGS. 3 and 4.
• the axis 18 of the diagonal support 27 is therefore also in the relevant plane. For this reason, both tensile and compressive forces transmitted from the diagonal support 27 between the vertical supports 11 pass through the axes 17, and torsional moments around the axes 17 are avoided.
• the lower hook 15 ' engages behind the lower edge of the elongated hole 16', and an upper horizontal step 33 of the hook 15 'comes to lie directly below the upper edge of the elongated hole 16'.
• a lower recess 34 between the hook 15 'and the lower end region 27' of the diagonal support 27 comes to rest on the lower edge of the elongated hole 16 '.
• the diagonal support 27 is secured at the bottom against displacement in its longitudinal direction 28 as well as up and down.
• the upper area of the diagonal support 27 is now folded up so far that the hook 15 provided there comes to rest in front of the upper elongated hole 16.
• the hook 15 is then pushed into the elongated hole 16 when the locking pin 19 is retracted, as shown in FIG. 4, whereupon the hook hooks over the lower edge of the elongated hole 16 due to the weight, as shown in FIGS. 3 and 4.
• the locking pin 19 according to FIG. 4 is located initially in its unlocked position so that the insertion of the hook 15 into the slot 16 is not hindered.
• the actuating lever 4 is first shifted in the direction of the arrow T in FIG. 4, the locking pin being moved forward into the upper region 16 "of the elongated hole 16 into the position according to FIG. 3
• the end faces 29, 30 come into engagement again, so that a return movement of the locking pin 19 is now positively prevented.
• the actuating lever 21 is pivoted clockwise into the position shown in FIG. 3, where the cross pin 22 is located at the upper end of the link recess 23. This movement is carried out solely by the weight of the actuating lever 21, but can be supported by the operator.
• the lower elongated hole 16 ′ is longer than the upper elongated hole 16. So if the operator tries to install the diagonal support 27 in reverse, this proves to be impossible because the hook 15 'does not fit into the smaller elongated hole 16. The operator is thus forced to turn the diagonal support 27 and to position it in the correct position where the lower hook 15 'is located in the elongated hole 16' and the upper hook 15 is located in the upper elongated hole 16.
• the elongated holes 16, 16 ' are made by laser cutting, which has the advantage that the strength of the vertical supports in the region of the elongated holes 16, 16' is hardly impaired and an extremely precise positioning of the elongated holes 16, 16 'is ensured.
• elongated holes 16 are expediently provided on diametrically opposite sides of the vertical supports 11, so that diagonal supports can be attached either on one or the opposite side or on both sides of a vertical support 11.
• the locking pin 19 is fixedly connected to an actuating tab which is U-shaped in cross-section by turning it around the rear area according to FIG. 11 of the locking pin 19 and is fixedly connected to the locking pin 19, for example by means of rivets 51 (FIG. 8).
• the legs of the actuating tab 48 grip from above over the flat upper end region 27 ′ of the diagonal support 27, which carries the upper hook 15, which is suspended in an elongated hole 16.
• the two legs of the actuating tab 48 are provided with links 50, each of which has an at least substantially straight sliding area 50 'running approximately parallel to the locking track and a locking area 50''adjoining it at the rear, which also at least has is approximately rectilinear and at least essentially runs right to the Riegelbahn.
• Transverse pins 49 engage in the two scenes 50 and are fixedly connected to the flat end region 27 ′ of the diagonal support 27.
• the actuating tab 48 is shifted by hand in the direction of the vertical support 11, the locking pin 19 entering the upper elongated hole region 16 ′′ according to FIG. 9 and the scenes 50 initially shifting so far relative to the pin 49 that the pin 49 come to rest in the corner area 50 "'of the backdrop 50. Now the locking pin 19 is already in its locking position.
• the actuating tab 48 is now essentially pivoted downward about the front end of the locking pin 19, the locking area 50 "of the two links 50 sliding down on the pin 49 until the pin 49 at the upper end of the locking areas 50 "come to rest, as can be seen in Fig. 10.
• the configuration is preferably such that the movement of the actuating tab 48 from the position according to FIG. 9 into the position according to FIG. 10 takes place solely due to the gravity of the actuating lever 48 and the locking pin 19. In any case, gravity causes the once locked position is maintained according to FIG. 10.
• the locking areas 50 ′′ extend at least approximately perpendicular to the locking bar 19 or have at least one essential component perpendicular to the locking bar, movement of the locking pin 19 in the unlocking direction is blocked.
• actuating tab 48 can execute the pivoting movement from the position according to FIG. 9 into the position according to FIG. 10, between the underside of the locking pin 19 in the unlocked position according to FIG. 8 or in the not yet secured position according to FIG. 9 and the upper edge of the end region 27 'a gusset 52 may be provided which permits the pivoting movement from the position according to FIG. 9 into that according to FIG. 10.
• the unlocking from the position according to FIG. 10 takes place in reverse order, in that the actuating tab 48 is first swung up by hand into the intermediate position according to FIG. 9 and then pulled away from the vertical support 11 until the unlocked position according to FIG. 8 is reached .
• the arrangement of two or possibly several parallel pin-link arrangements has the advantage that the actuating lever or the actuating tab is clearly guided.

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• Engineering & Computer Science (AREA)
• Architecture (AREA)
• Mechanical Engineering (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Ladders (AREA)
• Movable Scaffolding (AREA)
• Mutual Connection Of Rods And Tubes (AREA)

Applications Claiming Priority (3)

Publications (2)

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ID=7823928

Family Applications (1)

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Families Citing this family (17)

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• 1997
  • 1997-03-19 DE DE19711496A patent/DE19711496A1/de not_active Withdrawn
• 1998
  • 1998-03-18 US US09/381,325 patent/US6220392B1/en not_active Expired - Lifetime
  • 1998-03-18 AU AU72080/98A patent/AU7208098A/en not_active Abandoned
  • 1998-03-18 PT PT98919114T patent/PT968342E/pt unknown
  • 1998-03-18 EP EP98919114A patent/EP0968342B1/fr not_active Expired - Lifetime
  • 1998-03-18 AT AT98919114T patent/ATE201734T1/de active
  • 1998-03-18 PL PL98335678A patent/PL196024B1/pl unknown
  • 1998-03-18 WO PCT/EP1998/001586 patent/WO1998041713A1/fr active IP Right Grant
  • 1998-03-18 TR TR1999/02299T patent/TR199902299T2/xx unknown
  • 1998-03-18 DE DE59800798T patent/DE59800798D1/de not_active Expired - Lifetime
  • 1998-03-18 ES ES98919114T patent/ES2159948T3/es not_active Expired - Lifetime

Non-Patent Citations (1)

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