US 2026/0125914 A1Published application

Scaffold, in particular mobile scaffold

AssigneeWilhelm Layher Verwaltungs-GmbH

InventorWolf Christian BEHRBOHM

Life of this patent

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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.

Claims20

Dependent claims

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.

28 more elements

Dependencies are inferred from the claim text.

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Abstract

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.

28 more elements