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US-20260125914-A1 - SCAFFOLD, IN PARTICULAR MOBILE SCAFFOLD

US20260125914A1US 20260125914 A1US20260125914 A1US 20260125914A1US-20260125914-A1

Abstract

A scaffold, in particular a mobile scaffold, is constructed with at least two vertical ladders, with at least one horizontal scaffold floor, and with at least one advanced side protection double guardrail for protecting persons against falling from the scaffold floor. The at least one side protection double guardrail cannot be dismantled without dismantling the first ladder or the second ladder.

Inventors

  • Wolf Christian BEHRBOHM

Assignees

  • WILHELM LAYHER VERWALTUNGS-GMBH

Dates

Publication Date
20260507
Application Date
20231113
Priority Date
20221214

Claims (20)

  1. 1 . A scaffold, particularly a mobile scaffold ( 10 ), constructed with at least two vertical ladders ( 13 . 1 , 13 . 2 ), at least one horizontal scaffolding floor ( 17 . 2 , 17 . 3 ) and at least one side protection railing ( 11 ) for protection of persons from falling down from the scaffolding floor ( 17 . 2 , 17 . 3 ), wherein each ladder ( 13 . 1 , 13 . 2 ) of the at least two ladders ( 13 . 1 , 13 . 2 ) comprises at least two parallel struts ( 15 . 1 , 15 . 2 ) and a plurality of rungs ( 16 ) which each extend between a first vertical strut ( 15 . 1 ) and a second vertical strut ( 15 . 2 ) of the at least two vertical struts ( 15 . 1 , 15 . 2 ) of the respective ladder ( 13 . 1 , 13 . 2 ) at vertical rung spacings ( 33 ) from one another and which are each fixedly connected with the first vertical strut ( 15 . 1 ) and the second vertical strut ( 15 . 2 ) of the respective ladder ( 13 . 1 , 13 . 2 ), and wherein a first vertical ladder ( 13 . 1 ) and a second vertical ladder ( 13 . 2 ) of the at least two ladders ( 13 . 1 , 13 . 2 ) are vertically erected at a ladder horizontal spacing ( 34 ) from one another, and wherein the at least one scaffolding floor ( 17 . 1 , 17 . 3 ) extends between the first ladder ( 13 . 1 ) and the second ladder ( 13 . 2 ) and is detachably secured to both the first ladder ( 13 . 1 ) and the second ladder ( 13 . 2 ), and wherein secured to the first ladder ( 13 . 1 ) and to the second ladder ( 13 . 2 ) is a side protection double railing ( 11 ) which is mountable or mounted in advance and extends between the first ladder ( 13 . 1 ) and the second ladder ( 13 . 2 ) and which comprises an upper strut ( 35 ) extending above the at least one scaffolding floor ( 17 . 2 , 17 . 3 ), a lower strut ( 36 ) arranged at least partly or substantially or completely above the at least one scaffolding floor and a plurality of connecting struts ( 37 . 1 , 37 . 2 , 37 . 3 ) each fixedly connected with the lower strut ( 36 ) and the upper strut ( 35 ), wherein either the upper strut ( 35 ) of the side protection double railing ( 11 ) has a first upper strut end ( 41 . 1 ) with a first upper strut suspension unit ( 42 . 1 ) with a first upper strut suspension claw ( 43 . 1 ), which has first upper strut suspension claw sides ( 44 . 1 . 1 , 44 . 1 . 2 ) facing away from one another and is open towards its first upper strut suspension claw sides ( 44 . 1 . 1 , 44 . 1 . 2 ) and in a first plug-on direction ( 45 . 1 ) and by means of which the upper strut ( 35 ) is secured to a first rung ( 16 . 8 . 1 ) of the rungs ( 16 ) of the first ladder ( 13 . 1 ) to be detachable and to be pivotable in a first vertical pivot plane relative to the first ladder ( 13 . 1 ), and wherein the upper strut ( 35 ) of the side protection double railing ( 11 ) has a second upper strut end ( 41 . 2 ), which extends away from the first upper strut end ( 41 . 1 ), with a second upper strut suspension unit ( 42 . 2 ) with a second upper strut suspension claw ( 43 . 1 ), which has second upper strut suspension claw sides ( 44 . 2 . 1 , 44 . 2 . 2 ) facing away from one another and is open towards its second upper strut suspension claw sides ( 44 . 2 . 1 , 44 . 2 . 2 ) and in a second plug-on direction ( 45 . 2 ) and by means of which the upper strut ( 35 ) is secured to a second rung ( 16 . 8 . 2 ) of the rungs ( 16 ) of the second ladder ( 13 . 2 ) to be detachable and to be pivotable in a second vertical pivot plane relative to the second ladder ( 13 . 2 ), and wherein the upper strut ( 35 ) of the side protection double railing ( 11 ) has an upper strut length ( 48 ) greater than a first rung horizontal spacing ( 49 . 1 ) which the first rung ( 16 . 8 . 1 ) of the first ladder ( 13 . 1 ) and the second rung ( 16 . 8 . 2 ) of the second ladder ( 13 . 2 ) have from one another, and wherein the upper strut ( 35 ) of the side protection double railing ( 11 ) at least in the region of the first upper strut end ( 41 . 1 ) thereof engages over the first rung ( 16 . 8 . 1 ) of the first ladder ( 13 . 1 ), and wherein the upper strut ( 35 ) of the side protection railing ( 11 ) at least in the region of the second upper strut end ( 14 . 1 . 2 ) thereof engages over the second rung ( 16 . 8 . 2 ) of the second ladder ( 13 . 2 ), and wherein the lower strut ( 36 ) of the side protection double railing ( 11 ) has a lower strut length ( 50 ) greater than a second rung horizontal spacing 49 . 2 ) which a third rung ( 16 . 7 . 3 ) of the rungs ( 16 ) of the first ladder ( 13 . 1 ) and a fourth rung ( 16 . 7 . 4 ) of the rungs ( 16 ) of the second ladder ( 13 . 2 ) have from one another, and wherein the third rung ( 16 . 7 . 3 ) of the first ladder ( 13 . 1 ) is arranged at a first rung vertical spacing ( 33 ) below the first rung ( 16 . 8 . 1 ) of the first ladder ( 13 . 1 ), and wherein the fourth rung ( 16 . 7 . 4 ) of the second ladder ( 13 . 1 ) is arranged at a second rung vertical spacing ( 33 ) below the second rung ( 16 . 8 . 2 ) of the second ladder ( 13 . 2 ), and wherein the lower strut ( 36 ) of the side protection double railing ( 11 ) has a first lower strut end ( 51 . 1 ) and a second lower strut end ( 51 . 2 ) extending away therefrom, and wherein the lower strut ( 36 ) of the side protection double railing ( 11 ) at least in the region of the first lower strut end ( 51 . 1 ) thereof engages under the third rung ( 16 . 7 . 3 ) of the first ladder ( 13 . 1 ), and wherein the lower strut ( 36 ) of the side protection double railing ( 11 ) at least in the region of the second lower strut end ( 51 . 2 ) thereof engages under the fourth rung ( 16 . 7 . 4 ) of the second ladder ( 13 . 2 ), and wherein the upper strut ( 35 ) of the side protection double railing ( 11 ) at least in the region of the first upper strut end ( 41 . 1 ) thereof and at least in the region of the second upper strut end ( 41 . 2 ) thereof and the lower strut ( 36 ) of the side protection double railing ( 11 ) at least in the region of the first lower strut end ( 51 . 1 ) thereof and at least in the region of the second lower strut end ( 51 . 2 ) thereof and the first rung ( 16 . 8 . 1 ) and the third rung ( 16 . 7 . 3 ) of the first ladder ( 13 . 1 ) and the second rung ( 16 . 8 . 2 ) and the fourth rung ( 16 . 7 . 4 ) of the second ladder ( 13 . 2 ) are so configured and arranged in adaptation to one another that the side protection double railing ( 11 ) is incapable of demounting without demounting of the first ladder ( 13 . 1 ) or the second ladder ( 13 . 2 ), or the lower strut of the side protection double railing has a first lower strut end with a first lower strut suspension unit with a first lower strut suspension claw, which comprises first lower strut suspension claw sides facing away from one another and is open towards its first lower strut suspension claw sides and in a third plug-on direction and by means of which the lower strut is secured to a third rung of the rungs of the first ladder to be detachable and to be pivotable in a third vertical pivot plane relative to the first ladder, and wherein the lower strut of the side protection double railing has a second lower strut end, which extends away from the first lower strut end, with a second lower strut suspension unit with a second lower strut suspension claw, which has second lower strut suspension claw sides facing away from one another and is open towards its second lower strut suspension claw sides and in a fourth plug-on direction and by means of which the lower strut is secured to a fourth rung of the rungs of the second ladder to be detachable and to be pivotable in a fourth vertical pivot plane relative to the second ladder, and wherein the lower strut of the side protection double railing has a lower strut length greater than a third rung horizontal spacing which the third rung of the first ladder and the fourth rung of the second ladder have from one another, and wherein the lower strut of the side protection double railing at least in the region of the first lower strut end thereof engages over the third rung of the first ladder, and wherein the lower strut of the side protection railing at least in the region of the second lower strut end thereof engages over the fourth rung of the second ladder, and wherein the upper strut of the side protection double railing has an upper strut length greater than a fourth rung horizontal spacing which a first rung of the rungs of the first ladder and a second rung of the rungs of the second ladder have from one another, and wherein the first rung of the first ladder is arranged at a third rung vertical spacing above the third rung of the first ladder, and wherein the second rung of the second ladder is arranged at a fourth rung vertical spacing above the fourth rung of the second ladder, and wherein the upper strut of the side protection double railing has a first upper strut end and a second upper strut end extending away therefrom, and wherein the upper strut of the side protection double railing at least in the region of the first upper strut end thereof engages under the first rung of the first ladder, and wherein the upper strut of the side protection double railing at least in the region of the second upper strut end thereof engages under the second rung of the second ladder, and wherein the lower strut of the side protection double railing at least in the region of the first lower strut end thereof and at least in the region of the second lower strut end thereof and the upper strut of the side protection double railing at least in the region of the first upper strut end thereof and at least in the region of the second supper strut end thereof and the second rung and the fourth rung of the first ladder and the first rung and third rung of the second ladder are so configured and arranged in adaptation to one another that the side protection double railing is incapable of demounting without demounting of the first ladder or the second ladder.
  2. 2 . The scaffold according to claim 1 , wherein either the upper strut ( 36 ) of the side protection double railing ( 11 ) at least in the region of the first upper strut end ( 41 . 1 ) thereof and the lower strut ( 36 ) of the side protection double railing ( 11 ) at least in the region of the first lower strut end ( 51 . 1 ) thereof have from one another a first strut vertical spacing ( 52 . 1 ) which is only slightly larger than the first rung vertical spacing ( 33 ) and wherein the upper strut ( 35 ) of the side protection double railing ( 11 ) at least in the region of the second upper strut end ( 41 . 2 ) thereof and the lower strut ( 36 ) of the side protection double railing ( 11 ) in the region of the second lower strut end ( 51 . 2 ) thereof have from one another a second strut vertical spacing ( 52 . 2 ) which is only slightly larger than the second rung vertical spacing ( 33 ) or the upper strut of the side protection double railing at least in the region of the first upper strut end thereof and the lower strut of the side protection double railing at least in the region of the first lower strut end thereof have from one another a third strut vertical spacing which is only slightly larger than the third rung vertical spacing and wherein the upper strut of the side protection double railing at least in the region of the second upper strut end thereof and the lower strut of the side protection double railing in the region of the second lower strut end thereof have from one another a fourth strut vertical spacing which is only slightly larger than the fourth rung vertical spacing.
  3. 3 . The scaffold according to claim 2 , wherein either the first strut vertical spacing ( 52 . 1 ) is configured to be so adapted to the first rung vertical spacing ( 33 ) that the first upper strut suspension claw ( 43 . 1 ) is liftable upwardly ( 63 ) at most to such an extent from the first rung ( 16 . 8 . 1 ) of the first ladder ( 13 . 1 ) that the first upper strut suspension claw ( 43 . 1 ) is incapable of removal from the first rung ( 16 . 8 . 1 ) of the first ladder ( 13 . 1 ) and wherein the second strut vertical spacing ( 52 . 2 ) is configured to be so adapted to the second rung vertical spacing ( 33 ) that the second upper strut suspension claw ( 43 . 2 ) is liftable upwardly at most to such an extent from the second rung ( 16 . 8 . 2 ) of the second ladder ( 13 . 2 ) that the second upper strut suspension claw ( 43 . 2 ) is incapable of removal from the second rung ( 16 . 8 . 2 ) of the second ladder ( 13 . 2 ) or the third strut vertical spacing is configured to be so adapted to the third rung vertical spacing that the first lower strut suspension claw is liftable upwardly at most to such an extent from the third rung of the first ladder that the first lower strut suspension claw is incapable of removal from the third rung of the first ladder and wherein the fourth strut vertical spacing is configured to be so adapted to the fourth rung vertical spacing that the second lower strut suspension claw is liftable upwardly at most to such an extent from the third rung of the first ladder that the second lower strut suspension claw is incapable of removal from the third rung of the first ladder.
  4. 4 . The scaffold according to claim 1 , wherein either the first lower strut end ( 51 . 1 ) of the lower strut ( 36 ) extends in a first space ( 53 . 1 ) bounded by two directly successive rungs ( 16 . 7 . 3 ., 16 . 6 . 5 ) of the first ladder ( 13 . 1 ) and by the associated two vertical struts ( 15 . 1 , 15 . 2 ) of the first ladder ( 13 . 1 ) and the second lower strut end ( 51 . 2 ) of the lower strut ( 36 ) extends in a second space ( 53 . 2 ) bounded by two directly successive rungs ( 16 . 7 . 4 , 16 . 6 . 6 ) of the second ladder ( 13 . 2 ) and by the associated two vertical struts ( 15 . 1 , 15 . 2 ) of the second ladder ( 13 . 1 ) or the first upper strut end of the upper strut extends in a third space bounded by two directly successive rungs of the first ladder and by the associated two vertical struts of the first ladder and the second upper strut end of the upper strut extends in a fourth space bounded by two directly successive rungs of the second ladder and by the associated two vertical struts of the second ladder.
  5. 5 . The scaffold according to claim 1 , wherein either the lower strut ( 36 ) has between the two lower strut ends ( 51 . 1 , 51 . 2 ) thereof a lower strut middle part ( 38 ) which contains a lower strut centre center ( 54 ) of the lower strut ( 36 ) and which has lower strut middle part ends ( 55 . 1 , 55 . 2 ), which face away from one another and from which in each instance a lower strut part ( 56 . 1 , 56 . 2 ) of the lower strut ( 36 ) is cranked over in a first transverse direction ( 62 . 1 ) towards the upper strut ( 35 ) and/or in a second transverse direction ( 62 . 2 ) away from the respective upper strut end ( 41 . 1 , 41 . 2 ) of the upper strut ( 35 ) or towards the respectively associated vertical strut ( 15 . 1 , 15 . 2 ) of the first and second ladders ( 13 . 1 , 13 . 2 ) or the upper strut between the two upper strut ends thereof has an upper strut middle part which contains an upper strut center of the upper strut and which has upper strut middle part ends, which face away from one another and from which in each instance an upper strut part of the upper strut is cranked over in a third transverse direction towards the lower strut and/or in a fourth transverse direction away from the respective lower strut end of the lower strut or towards the respectively associated vertical strut of the first and second ladders.
  6. 6 . The scaffold according to claim 5 , wherein either the lower strut ( 36 ) has in the region of each of the two lower strut ends ( 51 . 1 , 52 . 2 ) thereof a respective lower strut end part ( 57 . 1 , 57 . 2 ) which in each instance is cranked over from the lower strut middle part ( 38 ) twice or in more than two directions or the upper strut has in the region of each of the two upper strut ends thereof a respective upper strut end part which is cranked over in each instance from the upper strut middle part twice or in more than two directions.
  7. 7 . The scaffold according to claim 5 , wherein either the lower strut middle part ( 38 ) extends rectilinearly along a lower strut middle part longitudinal axis ( 40 ) of the lower strut middle part ( 38 ) parallelly to an upper strut longitudinal axis ( 39 ) of the upper strut ( 35 ) along which the upper strut ( 35 ) extends, wherein the upper strut longitudinal axis ( 39 ) extends in a first plane ( 60 . 1 ) containing the lower strut middle part longitudinal axis ( 40 ) or the upper strut middle part extends rectilinearly along an upper strut middle part longitudinal axis of the upper strut middle part parallelly to a lower strut longitudinal axis of the lower strut along which the lower strut extends, wherein the lower strut longitudinal axis extends in a second plane containing the upper strut middle part longitudinal axis.
  8. 8 . The scaffold according to claim 7 , wherein either each lower strut end part ( 57 . 1 , 57 . 2 ) extends rectilinearly along a lower strut end part longitudinal axis ( 61 . 1 , 61 . 2 ), which extends parallelly to the lower strut middle part longitudinal axis ( 40 ) of the lower strut middle part ( 38 ), of the respective lower strut end part ( 57 . 1 , 57 . 2 ), or each upper strut end part extends rectilinearly along an upper strut end part longitudinal axis, which extends parallelly to the upper strut middle part longitudinal axis of the upper strut middle part, of the respective upper strut end part.
  9. 9 . The scaffold according to claim 6 , wherein either each lower strut end part ( 57 . 1 , 57 . 2 ) is arranged to be laterally offset in a fifth transverse direction ( 62 . 5 ) with respect to the lower strut middle part ( 38 ) or each upper strut end part is arranged to be laterally offset in a sixth transverse direction with respect to the upper strut middle part.
  10. 10 . The scaffold according to claim 1 , wherein either the upper strut ( 35 ) is formed with a straight upper strut rod element ( 58 ) which extends along an upper strut longitudinal axis ( 39 ) of the upper strut ( 35 ) or along the upper strut longitudinal axis ( 39 ) of the upper strut ( 35 ) and which has a first upper strut rod element end ( 59 . 1 ), which is connected with the first upper strut suspension unit ( 42 . 1 ) or to which the first upper strut suspension unit ( 42 . 1 ) is secured and which has a second upper strut rod element end ( 59 . 2 ) which extends away from the first upper strut rod element end ( 59 . 1 ) in an opposite direction and which is connected with the second upper strut suspension unit ( 42 . 2 ) or to which the second upper strut suspension unit ( 42 . 2 ) is secured or the lower strut is formed with a straight lower strut rod element which extends along a lower strut longitudinal axis of the lower strut or along the lower strut longitudinal axis of the lower strut and which has a first lower strut rod element end, which is connected with the first lower strut suspension unit or to which the first lower strut suspension unit is secured and which has a second lower strut rod element end which extends away from the first lower strut rod element end in an opposite direction and which is connected with the second lower strut suspension unit or to which the second lower strut suspension unit is secured.
  11. 11 . The scaffold according to claim 1 , wherein the upper strut length ( 48 ) of the upper strut ( 35 ) is approximately the same as the lower strut length ( 50 ) of the lower strut ( 36 ).
  12. 12 . The scaffold according to claim 1 , wherein either the first lower strut end ( 51 . 1 ) of the lower strut ( 36 ) has a first lower strut securing unit ( 70 . 1 ) with a first lower strut claw ( 71 . 1 ) for reception of the first or second vertical strut ( 15 . 1 , 15 . 2 ) of the first ladder ( 13 . 1 ) and with a first locking element ( 72 . 1 ) for locking the first lower strut claw ( 71 . 1 ) with an associated vertical strut ( 15 . 1 , 15 . 2 ) of the first ladder ( 13 . 1 ) and the second lower strut end ( 51 . 2 ) of the lower strut ( 36 ) has a second lower strut securing unit ( 70 . 2 ) with a second lower strut claw ( 71 . 2 ) for reception of the first or second vertical strut ( 15 . 1 , 15 . 2 ) of the second ladder ( 13 . 2 ) and with a second locking element ( 72 . 2 ) for locking the second lower strut claw ( 71 . 2 ) to an associated vertical strut ( 15 . 1 , 15 . 2 ) of the second ladder ( 13 . 2 ), wherein the first lower strut claw ( 71 . 1 ) has first lower strut claw sides ( 71 . 1 . 1 , 71 . 1 . 2 ) facing away from one another and is open towards its first lower strut claw sides ( 71 . 1 . 1 , 71 . 1 . 2 ) and in a fifth plug-on direction ( 45 . 5 ) and the second lower strut claw ( 71 . 2 ) has second lower strut claw sides ( 71 . 2 . 1 , 71 . 2 . 2 ) facing away from one another and is open towards its second lower strut claw sides ( 71 . 2 . 1 , 71 . 2 . 2 ) and in a sixth plug-on direction ( 45 . 6 ), and wherein the first locking element ( 72 . 1 ) is transferrable to a first open setting in which the first lower strut claw ( 71 . 1 ) can be plugged in the fifth plug-on direction ( 45 . 5 ) onto the associated vertical strut ( 15 . 1 , 15 . 2 ) of the first ladder ( 13 . 1 ) and is transferrable from the first open setting to a first locking setting ( 76 . 1 ) in which the first lower strut claw ( 71 . 1 ) is mechanically positively lockable to the associated vertical strut ( 15 . 1 , 15 . 2 ) of the first ladder ( 13 . 1 ) against removal from the associated vertical strut ( 15 . 1 , 15 . 2 ) of the first ladder ( 13 . 1 ) and the first lower strut claw ( 71 . 1 ) is detachably securable or detachably secured to the associated vertical strut ( 15 . 1 , 15 . 2 ) of the first ladder ( 13 . 1 ) by means of the first locking element ( 72 . 1 ) disposed in its first locking setting ( 76 . 1 ), and the second locking element ( 72 . 2 ) is transferrable to a second open setting in which the second lower strut claw ( 72 . 2 ) can be plugged in the sixth plug-on direction ( 45 . 6 ) onto the associated vertical strut ( 15 . 1 , 15 . 2 ) of the second ladder ( 13 . 2 ) and is transferrable from the second open setting to a second locking setting ( 76 . 2 ) in which the second lower strut claw ( 71 . 2 ) is mechanically positively lockable to the associated vertical strut ( 15 . 1 , 15 . 2 ) of the second ladder ( 13 . 2 ) against removal from the associated vertical strut ( 15 . 1 , 15 . 2 ) of the second ladder ( 13 . 2 ) and the second lower strut claw ( 71 . 2 ) is detachably securable or detachably secured to the associated vertical strut ( 15 . 1 , 15 . 2 ) of the second ladder ( 13 . 2 ) by means of the second locking element ( 72 . 2 ) disposed in its second locking setting ( 76 . 2 ) or the first upper strut end of the upper strut has a first upper strut securing unit with a first upper strut claw for reception of the first or second vertical strut of the first ladder and with a third locking element for locking the first upper strut claw to an associated vertical strut of the first ladder and the second upper strut end of the upper strut has a second upper strut securing unit with a second upper strut claw for reception of the first or second vertical strut of the second ladder and with a fourth locking element for locking the second upper strut claw to an associated vertical strut of the second ladder, wherein the first upper strut claw has first upper strut claw sides facing away from one another and is open towards its first upper strut claw sides and in a seventh plug-on direction and the second upper strut claw has second upper strut claw sides facing away from one another and is open towards its second upper strut claw sides and in an eighth plug-on direction, and wherein the third locking element is transferrable to a third open setting in which the first upper strut claw can be plugged in the seventh plug-on direction onto the associated vertical strut of the first ladder and is transferrable from the third open setting to a third locking setting in which the first upper strut claw is mechanically positively lockable to the associated vertical strut of the first ladder against removal from the associated vertical strut of the first ladder and the first upper strut claw is detachably securable or detachably secured to the associated vertical strut of the first ladder by means of the third locking element disposed in its third locking setting and the fourth locking element is transferrable to a fourth open setting in which the second upper strut claw can be plugged in the eighth plug-on direction onto the associated vertical strut of the second ladder and is transferrable from the fourth open setting into a fourth locking setting in which the second upper strut claw is mechanically positively lockable to the associated vertical strut of the second ladder against removal from the associated vertical strut of the second ladder and the second upper strut claw is detachably securable or detachably secured to the associated vertical strut of the second ladder by means of the fourth locking element disposed in its fourth locking setting.
  13. 13 . The scaffold according to claim 12 , wherein either the first lower strut claw ( 71 . 1 ) of the first lower strut securing unit ( 70 . 1 ) is open in the fifth plug-on direction ( 45 . 5 ) perpendicularly to the first plug-on direction ( 45 . 1 ) in which the first upper strut suspension claw ( 43 . 1 ) of the first upper strut suspension unit ( 42 . 1 ) is open and the second lower strut claw ( 71 . 2 ) of the second lower strut securing unit ( 70 . 2 ) is open in the sixth plug-on direction ( 45 . 6 ) perpendicularly to the second plug-on direction ( 45 . 2 ) in which the second upper strut suspension claw ( 43 . 2 ) of the second upper strut suspension unit ( 42 . 2 ) is open or the first upper strut claw of the first upper strut securing unit is open in the seventh plug-on direction perpendicularly to the third plug-on direction in which the first lower strut suspension claw of the first lower strut suspension unit is open and the second upper strut claw of the second upper strut securing unit is open in the eighth plug-on direction perpendicularly to the fourth plug-on direction in which the second lower strut suspension claw of the second lower strut suspension unit is open.
  14. 14 . The scaffold according to claim 1 , wherein either the first upper strut end or the first upper strut suspension unit of the upper strut has a fifth locking element for locking the first upper strut suspension claw to the first rung of the first ladder and the second upper strut end or the second upper strut suspension unit of the upper strut has a sixth locking element for locking the second upper strut suspension claw to the second rung of the second ladder, wherein the first upper strut suspension claw has first upper strut suspension claws facing away from one another and is open towards its first upper strut suspension claw sides and in the first plug-on direction and wherein the second upper strut suspension claw has second upper strut claw sides facing away from one another and is open towards its second upper strut suspension claw sides and in the second plug-on direction, and wherein the fifth locking element is transferrable to a fifth open setting in which the first upper strut suspension claw can be plugged in the first plug-on direction onto the first rung of the first ladder and is transferrable from the fifth open setting to a fifth locking setting in which the first upper strut suspension claw is locked to the first rung of the first ladder against removal from the first rung of the first ladder and wherein the sixth locking element is transferrable to a sixth open setting in which the second upper strut suspension claw can be plugged in the second plug-on direction onto the second rung of the second ladder and is transferrable from the sixth open setting to a sixth locking setting in which the second upper strut suspension claw is locked to the second rung of the second ladder against removal from the second rung of the second ladder or the first lower strut end or the first lower strut suspension unit of the lower strut has a seventh locking element for locking the first lower strut suspension claw to the third rung of the first ladder and the second lower strut end or the second lower strut suspension unit of the lower strut has an eighth locking element for locking the second lower strut suspension claw to the fourth rung of the first ladder, wherein the first lower strut suspension claw has first lower strut suspension claw sides facing away from one another and is open towards its first lower strut suspension claw sides in the third plug-on direction, and wherein the second lower strut suspension claw has second lower strut suspension claw sides facing away from one another and is open towards its second lower strut suspension claw sides in the fourth plug-on direction, and wherein the seventh locking element is transferrable to a seventh open setting in which the first lower strut suspension claw can be plugged in the third plug-on direction onto the third rung of the first ladder and is transferrable from the seventh open setting to a seventh locking setting in which the first lower strut claw is locked to the third rung of the first ladder against removal from the third rung of the first ladder, and wherein the eighth locking element is transferrable to an eighth open setting in which the second lower strut suspension claw can be plugged in the fourth plug-on direction onto the fourth rung of the second ladder and is transferrable from the eighth open setting to an eighth locking setting in which the second lower strut claw is locked to the fourth rung of the second ladder against removal from the fourth rung of the second ladder.
  15. 15 . The scaffold according to claim 1 , wherein either the first upper strut suspension claw ( 43 . 1 ) of the upper strut ( 35 ) of the side protection double railing ( 11 ) is open downwardly ( 64 ) in the first plug-on direction ( 45 . 1 ) and the second upper strut suspension claw ( 43 . 2 ) of the upper strut ( 35 ) of the side protection double railing ( 11 ) is open downwardly ( 64 ) in the second plug-on direction ( 45 . 2 ) or the first lower strut suspension claw of the lower strut of the side protection double railing is open downwardly in the third plug-on direction and the second lower strut suspension claw of the lower strut of the side protection double railing is open downwardly in the fourth plug-on direction.
  16. 16 . The scaffold according to claim 1 , wherein either the first plug-on direction ( 45 . 1 ) in which the first upper strut suspension claw ( 43 . 1 ) of the upper strut ( 35 ) of the side protection double railing ( 11 ) is open and the second plug-on direction ( 45 . 2 ) in which the second upper strut suspension claw ( 43 . 2 ) of the upper strut ( 35 ) of the side protection double railing ( 11 ) is open are the same or parallel to one another or the third plug-on direction in which the first lower strut suspension claw of the lower strut of the side protection double railing is open and the fourth plug-on direction in which the second lower strut suspension claw of the lower strut of the side protection double railing is open are the same or parallel to one another.
  17. 17 . The scaffold according to claim 1 , wherein either the first upper strut suspension claw of the upper strut of the side protection double railing is open in the first plug-on direction towards the second upper strut end of the upper strut of the side protection double railing or towards the second upper strut suspension claw of the upper strut of the side protection double railing and the second upper strut suspension claw of the upper strut of the side protection double railing is open in the second plug-on direction towards the first upper strut end of the upper strut of the side protection double railing or towards the first upper strut suspension claw of the upper strut of the side protection double railing or the first lower strut suspension claw of the lower strut of the side protection double railing is open in the third plug-on direction towards the second lower strut end of the lower strut of the side protection double railing or towards the second lower strut suspension claw of the lower strut of the side protection double railing and the second lower strut suspension claw of the lower strut of the side protection double railing is open in the fourth plug-on direction towards the first lower strut end of the lower strut of the side protection double railing or towards the first lower strut suspension claw of the lower strut of the side protection double railing.
  18. 18 . The scaffold according to claim 1 , wherein either the first plug-on direction in which the first upper strut suspension claw of the upper strut of the side protection double railing is open and the second plug-on direction in which the second upper strut suspension claw of the upper strut of the side protection double railing is open are different or include a fifth angle with one another or the third plug-on direction in which the first lower strut suspension claw of the lower strut of the side protection double railing is open and the fourth plug-on direction in which the second lower strut suspension claw of the lower strut of the side protection double railing is open are different or include a sixth angle with one another.
  19. 19 . The scaffold according to claim 18 , wherein either the fifth angle is 90 degrees or the sixth angle is 90 degrees.
  20. 20 . The scaffold according to claim 18 , wherein either the first upper strut suspension claw of the upper strut of the side protection double railing is downwardly open in the first plug-on direction and the second upper strut suspension claw of the upper strut of the side protection double railing is open in the second plug-on direction towards the first upper strut end of the upper strut of the side protection double railing or towards the first upper strut suspension claw of the upper strut of the side protection double railing or the first lower strut suspension claw of the lower strut of the side protection double railing is downwardly open in the third plug-on direction and the second lower strut suspension claw of the lower strut of the side protection double railing is open in the fourth plug-on direction towards the first lower strut end of the lower strut of the side protection double railing or towards the first lower strut suspension claw of the lower strut of the side protection double railing.

Description

The invention relates to a scaffold, particularly a mobile scaffold, with the features of the preamble of claim 1. TECHNOLOGICAL BACKGROUND AND PRIOR ART A mobile scaffold and a method for mounting and demounting this mobile scaffold have become known from DE 10 2008 051 135 A1 and the parallel EP 2 175 087 A1 of the Applicant. Such a mobile scaffold can also be termed a mobile work platform. At the time of construction of this mobile scaffold a side protection railing consisting of individual scaffold struts is mounted in advance, or two such side protection railings are respectively mounted in advance at a horizontal spacing from one another, on horizontal rungs of support frames, which are also termed ladders. The or each individual support strut extends rectilinearly along its support strut longitudinal axis and has support strut ends which extend in opposite directions away from one another and which are each constructed as a detent claw. Detent claws of that kind have become known from, for example, DE 37 02 152 A1 and the parallel EP 0 276 489 as well as from DE 38 22 215 A1 and the parallel EP 0 348 885 A2. They enable a mechanically positive and secure fixing of the components having these detent claws, such as scaffolding floors, diagonal struts and/or horizontal struts, to other scaffolding struts having a round cross-section, wherein in the fixed state they are pivotable relative to these other scaffolding struts. In order to construct or assemble the mobile scaffold the starting point is from a first level, preferably from a first scaffolding floor, of a lower storey, which is constructed from a vertically erected first support frame and a second support frame, which is vertically erected at a horizontal spacing therefrom, and from a first scaffolding floor. Each support frame is a ladder consisting of two support struts and of a plurality of horizontal rungs, which extend between the two support struts parallelly and at equal spacings from one another and which are each rigidly connected with the two support struts. Starting from the first storey initially either with the assistance of two first scaffolding struts, which can be or are later installed as diagonals for diagonal stiffening of the mobile scaffold, or with the assistance of an auxiliary component, which comprises one or more support frame suspension hooks and which at the time of assembly of the mobile scaffold functions or function as a support frame suspension device, a third support frame constructed as a third ladder with a plurality of horizontal rungs is suspended in a vertical intermediate assembly setting either at the two first scaffolding struts or at the auxiliary component, wherein the two first scaffolding struts or the auxiliary component is or are supported at the already erected lower, first support frame, which is constructed as a first ladder with a plurality of horizontal rungs. Two individual second scaffolding struts which each extend rectilinearly and which also each have a suspension unit in the form of a detent claw at scaffolding strut ends thereof extending in opposite directions away from one another are subsequently mounted as follows: Initially, a first second scaffolding strut of the two individual second scaffolding struts is releasably suspended by the first detent claw of its two detent claws at an uppermost rung of an upper, fourth support frame, which is constructed as a fourth ladder with a plurality of horizontal rungs and which was already erected on the lower, second support frame constructed as a third ladder with a plurality of horizontal rungs. The first second scaffolding strut is subsequently suspended by the second detent claw of its two detent claws at an uppermost rung of the third support frame present in its intermediate assembly setting, for which purpose this was transferred beforehand from its vertical intermediate assembly setting—still vertically supported either at the two first scaffolding struts or at the auxiliary component—to an inclined intermediate assembly setting by pivotation relative to the first support frame about a horizontal pivot axis. The second second scaffolding strut of the two individual second scaffolding struts is subsequently or even beforehand releasably suspended by the first detent claw of its two detent claws at the uppermost rung of the upper, fourth support frame. The second second scaffolding strut of the two second scaffolding struts is subsequently suspended by the second detent claw of its two detent claws at the uppermost rung of the third support frame disposed in its inclined intermediate assembly setting. Subsequently thereto the third support frame in its inclined intermediate assembly setting is guided upwardly together with the two individual second scaffolding struts secured thereto to be pivotable relative to this and erected on the already mounted, lower first support frame. The two individual second scaffolding struts thereby each pas