EP1936108A2 - Bras pour une échelle ou un échafaudage - Google Patents

Bras pour une échelle ou un échafaudage Download PDF

Info

Publication number
EP1936108A2
EP1936108A2 EP07024363A EP07024363A EP1936108A2 EP 1936108 A2 EP1936108 A2 EP 1936108A2 EP 07024363 A EP07024363 A EP 07024363A EP 07024363 A EP07024363 A EP 07024363A EP 1936108 A2 EP1936108 A2 EP 1936108A2
Authority
EP
European Patent Office
Prior art keywords
boom
ladder
strut
sliding sleeves
pivot
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP07024363A
Other languages
German (de)
English (en)
Other versions
EP1936108B1 (fr
EP1936108A3 (fr
Inventor
Eberhard Lang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hymer Leichtmetallbau GmbH and Co KG
Original Assignee
Hymer Leichtmetallbau GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hymer Leichtmetallbau GmbH and Co KG filed Critical Hymer Leichtmetallbau GmbH and Co KG
Publication of EP1936108A2 publication Critical patent/EP1936108A2/fr
Publication of EP1936108A3 publication Critical patent/EP1936108A3/fr
Application granted granted Critical
Publication of EP1936108B1 publication Critical patent/EP1936108B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/42—Ladder feet; Supports therefor
    • E06C7/423—Ladder stabilising struts
    • 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
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/24—Scaffolds primarily resting on the ground comprising essentially special base constructions; comprising essentially special ground-engaging parts, e.g. inclined struts, wheels
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C1/00—Ladders in general
    • E06C1/02—Ladders in general with rigid longitudinal member or members
    • E06C1/14—Ladders capable of standing by themselves
    • E06C1/16—Ladders capable of standing by themselves with hinged struts which rest on the ground
    • E06C1/20—Ladders capable of standing by themselves with hinged struts which rest on the ground with supporting struts formed as poles
    • E06C1/22—Ladders capable of standing by themselves with hinged struts which rest on the ground with supporting struts formed as poles with extensible, e.g. telescopic, ladder parts or struts
    • 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
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/24—Scaffolds primarily resting on the ground comprising essentially special base constructions; comprising essentially special ground-engaging parts, e.g. inclined struts, wheels
    • E04G2001/248—Inclined struts

Definitions

  • the invention relates to a boom for a ladder or scaffolding according to the preamble of claim 1.
  • pivotable boom - in the form of a rod - to arrange.
  • the invention relates to according to all the above-mentioned ladders and scaffolding, in which it is possible to pivotally attach a lateral boom rod.
  • the boom To move the boom to a working position (spread apart from the ladder or scaffold), the boom must be swung sideways and lengthened to allow a support point on the ground remote from the ladder or scaffolding.
  • the boom If the boom is to be pivoted in and brought into a non-active rest position, then it must be pivoted to the ladder or the scaffold and its length shortened.
  • each one part of the wire hanger is pivotally mounted on the boom and the opposite part of the wire hanger can be suspended or removed from the ladder.
  • the invention is therefore based on the object, a boom for a ladder, a scaffold or the like educate so that it provides both a Schwenkwinkelbegrenzung the boom to the outside and inward, which works much more reliable and easier than the known solutions.
  • the invention is characterized by the technical teaching of claim 1.
  • the pivot limiting for the boom consists in particular two aligned superimposed sliding sleeves, which are penetrated by the boom and which are arranged displaceably on the boom, that in each case a boom strut with one end pivotally connected to the sliding sleeve and with its other end pivotally connected to a ladder part.
  • boom struts are now fixed and no longer removable, each attached to a ladder part and are pivotally mounted there.
  • the respective sliding sleeve is in the upper third of the boom, and the boom struts are arranged approximately parallel to the longitudinal axis of the ladder struts of the ladder part.
  • the boom is pivoted slightly outwards by means of a spring or by manual force.
  • the sliding sleeves fall by gravity down and slide along the longitudinal axis down due to gravity on a dead center on the longitudinal axis of the boom.
  • the swung-out position can only be reversed by moving with hand force on the boom struts or the sliding sleeves against the previous displacement movement of the sliding sleeves up to move these sliding sleeves back over the dead center on the boom and this while the boom in the direction of its rest position against to move and lay the ladder.
  • Such a boom assembly can be attached to any ladder, scaffolding, podium, podium ladder and the like.
  • the invention is therefore not limited to the arrangement of a particular ladder or a particular scaffolding.
  • the invention provides several embodiments, and for such a change in length, it is important that the boom is pulled out to achieve its working position or extended in length to a support length, with the support length can adapt to the level of the ground.
  • the boom At rest, the boom is shortened in length so as not to exceed the outer dimensions of the ladder or ladder parts.
  • variable length devices are z.
  • clamping devices that can change a telescopic boom in length or spring clamps or wedge clamps orJnabsteckvorraumen, so that the boom rod consists of two telescoping telescoping tube parts, the length adjustment by inserting a stake in two oppositely aligned holes arranged in the one another reaching pipe parts is achieved.
  • the boom In addition to the change in length by the intermeshing of telescoping tubes is provided in another embodiment, the boom also foldable or to make variable in length in other ways.
  • a stepladder 1 which consists of two ladder parts 3, 4, which are pivotally connected to each other at its upper portion by a bearing block 7.
  • a pivot bearing 6 for the attachment of the upper end of a boom 5 is shown.
  • FIG. 1 only a single boom 5 shown, although in practice always on both sides of a ladder or scaffolding such a boom 5 is arranged.
  • the ladder is not only on the two pivotally hinged to each other ladder parts 3, 4, but also on the left and right of the ladder parts 3, 4 splayed out boom fifth
  • the invention provides that the boom 5 passes through two sliding sleeves 13, 14, which are thus arranged displaceably and with a corresponding sliding play on the boom 5.
  • the sliding sleeves 13, 14 are preferably designed as pipe clamps, to which the invention is not limited. It is important that the profile of the sliding sleeves 13, 14 is adapted to the profile of the boom 5. Accordingly, the boom 5 could for example also consist of an oval profile or another profile, and the profile of the sliding sleeves 13, 14 would then adapted to this profile.
  • the sliding sleeves are not only arranged longitudinally displaceable on the boom 5, but also rotatable.
  • the profile shape of the sliding sleeves 13, 14 may be adapted to the profile of the boom 5 accordingly.
  • FIG. 1 shows the swung working position of the boom brace.
  • FIG. 2 shows that the two sliding sleeves 13, 14 in the direction of arrow 19 from a raised rest position to the working position FIG. 1 and 2 were moved automatically and gravitationally, according to FIG. 2 the two sliding sleeves 13, 14 have been moved so far in the direction of arrow 19 in the boom that they have overcome a dead center 20 and create below this dead center on a stop rivet 21.
  • Each sliding sleeve 13, 14 is in this case connected to a pivot bearing 17, 18, on which one end of a cantilever strut 11, 12 is pivotally hinged.
  • the other end of the respective cantilever strut 11, 12 is pivotally connected to a pivot hook 16, which is bent and with his bent end engages in a arranged on the inside of the respective conductor part 3, 4 hinge plate 15.
  • the bend of the swivel hook 16 and its pivotable mounting on both sides - on the one hand on the boom strut 11, 12 and on the other hand on the hinge plate 15 - has the purpose that in the pivoted state of the boom 5, when this is approximately parallel to the longitudinal axis of the ladder parts 3, 4 directed , the two boom struts 11, 12 are pivoted in front of the ladder parts 3, 4 and therefore create on the outside of the ladder parts 3, 4 and can not get into the space between the ladder parts 3, 4.
  • FIG. 3 shows as a preferred embodiment, an automatic or at least partially automatic swinging out of the boom under spring force.
  • a biasing spring 8 is arranged, with its one end on the pivot bearing 6 and with its other end 9 on the pivotable Part of the boom 5 supporting load.
  • the invention also relates to a solution in which the biasing spring 8 can be omitted. If the biasing spring 8 is omitted, the necessary pivotal movement in the direction of the arrow 25 must be carried out completely by hand.
  • the sliding sleeve 13 shifts from its rest position 13 'in the direction of arrow 22 (here, for example clockwise), while the sliding sleeve from its rest position 14' in the position 14 in the direction of arrow 23 (here counterclockwise, for example) twisted, so that the Turning directions of the two sliding sleeves 13, 14 are opposite to each other.
  • FIG. 4 shows at the same time that in the rest position, the respective cantilever strut 11 ', 12' is aligned exactly parallel to the longitudinal axis of the conductor parts 3, 4.
  • the previously described overcoming the dead center 20 is according to FIG. 1 defined by the angle 24 between the longitudinal axis of the boom strut 11, 12 and the longitudinal axis of the boom 5 is less than 90 degrees to achieve the desired self-locking.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Ladders (AREA)
EP07024363A 2006-12-21 2007-12-15 Bras pour une échelle ou un échafaudage Active EP1936108B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006060730A DE102006060730B4 (de) 2006-12-21 2006-12-21 Ausleger für eine Leiter oder ein Arbeitsgerüst

Publications (3)

Publication Number Publication Date
EP1936108A2 true EP1936108A2 (fr) 2008-06-25
EP1936108A3 EP1936108A3 (fr) 2010-01-06
EP1936108B1 EP1936108B1 (fr) 2011-08-17

Family

ID=39106291

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07024363A Active EP1936108B1 (fr) 2006-12-21 2007-12-15 Bras pour une échelle ou un échafaudage

Country Status (4)

Country Link
EP (1) EP1936108B1 (fr)
AT (1) ATE520856T1 (fr)
DE (1) DE102006060730B4 (fr)
ES (1) ES2371667T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018138464A1 (fr) * 2017-01-24 2018-08-02 Binks John Vincent Améliorations apportées à des stabilisateurs d'escabeau

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4641729A (en) 1985-10-31 1987-02-10 Beck Andrew C Method and apparatus for stabilizing a ladder
DE10104689A1 (de) 2001-01-29 2001-08-09 Horst Laug Stabilisierungsstütze für Leitern

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2997127A (en) * 1959-10-07 1961-08-22 Wojtowicz Michael Stepladder with improved stabilizing legs
US3327810A (en) * 1966-05-10 1967-06-27 Up Right Inc Self-supported ladder
US5511632A (en) * 1994-07-25 1996-04-30 Ermis; Jerry J. Ladder with auxiliary support
DE29821356U1 (de) * 1998-11-30 1999-03-04 Laug, Horst, 49809 Lingen Stabilisierungsstützen für Bock- und Anlegeleitern

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4641729A (en) 1985-10-31 1987-02-10 Beck Andrew C Method and apparatus for stabilizing a ladder
DE10104689A1 (de) 2001-01-29 2001-08-09 Horst Laug Stabilisierungsstütze für Leitern

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018138464A1 (fr) * 2017-01-24 2018-08-02 Binks John Vincent Améliorations apportées à des stabilisateurs d'escabeau

Also Published As

Publication number Publication date
ES2371667T3 (es) 2012-01-09
DE102006060730A1 (de) 2008-07-03
ATE520856T1 (de) 2011-09-15
EP1936108B1 (fr) 2011-08-17
EP1936108A3 (fr) 2010-01-06
DE102006060730B4 (de) 2009-09-24

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