EP1231356A2 - Echelle avec dispositif pour compensation du niveau - Google Patents

Echelle avec dispositif pour compensation du niveau Download PDF

Info

Publication number
EP1231356A2
EP1231356A2 EP01128781A EP01128781A EP1231356A2 EP 1231356 A2 EP1231356 A2 EP 1231356A2 EP 01128781 A EP01128781 A EP 01128781A EP 01128781 A EP01128781 A EP 01128781A EP 1231356 A2 EP1231356 A2 EP 1231356A2
Authority
EP
European Patent Office
Prior art keywords
ladder
clamping device
clamping
strut
receptacle
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
EP01128781A
Other languages
German (de)
English (en)
Other versions
EP1231356B1 (fr
EP1231356A3 (fr
Inventor
Rudolf Pfeifer
Manfred Klaas
Edgar Kunz
Norbert Dross
Ulrich Weigel
Martin Gaubatz
Gerhard Müller
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.)
Hailo Werk Rudolf Loh GmbH and Co KG
Original Assignee
Hailo Werk Rudolf Loh 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
Priority claimed from DE10109947A external-priority patent/DE10109947A1/de
Application filed by Hailo Werk Rudolf Loh GmbH and Co KG filed Critical Hailo Werk Rudolf Loh GmbH and Co KG
Publication of EP1231356A2 publication Critical patent/EP1231356A2/fr
Publication of EP1231356A3 publication Critical patent/EP1231356A3/fr
Application granted granted Critical
Publication of EP1231356B1 publication Critical patent/EP1231356B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E06C7/44—Means for mounting ladders on uneven ground

Definitions

  • the present invention relates to a ladder comprising two parallel bars, between these two bars in the transverse direction Running ladder rungs and a lower one in the transverse direction Stand part with two supporting points on the surface Feet at the ends, one device for one Level compensation is provided, provided both support points of the Are at different heights.
  • the object of the present invention is to provide a ladder to create the type mentioned, which is a facility for has a level compensation that is permanently trouble-free works and by operating them the stability of the ladder is not affected.
  • a head of the invention provides the solution to this problem genus mentioned at the beginning with the characteristic features of the main claim.
  • an arcuate strut is provided that part of the wider lower part of the ladder.
  • the two ends this arcuate strut form the two support points with the Feet with which the ladder stands on the ground.
  • This arcuate strut is on one opposite the ladder stiles Slidable curve line.
  • a clamping device provided by means of which the arcuate strut on the neighboring lowest ladder rung can be set.
  • the clamping force of this clamping device is designed so that it from the side, d. H. with the ladder set up essentially acts horizontally on the arched strut. Training the Clamping device is also such that when tightening the arcuate strut is not bent or shifted.
  • a preferred embodiment of the invention provides, for example, to form the clamping device in two parts with two approximately similar shaped halves. These two halves can be activated by pressing one Actuator with the ladder set up essentially pressed horizontally against each other. These two halves preferably form a receptacle for the in the closed state called arcuate strut. In the released position of the Clamping device is this arcuate strut in this The picture can be moved freely along the curved line, while the arcuate strut in the clamping position by the clamping force of the two halves pressed against each other.
  • the clamping device is preferably at the lowest Ladder rung fixed so when moving the arcuate Strive to set the appropriate level adjustment position the clamping device in its position opposite the lowest Ladder rung remains.
  • the Clamping device has an upper receptacle, which is the lowest The ladder rung surrounds it in a form-fitting manner and attached to it is. This means that the clamping device is also in the released position is immovable along the rung.
  • the two Halves preferably in their upper area on the recording is fixed on the lowest rung and in its lower Area they have the receptacle for the arched strut, in of the arcuate strut after loosening the clamp is movable.
  • a particularly preferred variant of the invention provides that Actuator for the clamp one by foot actuable operating lever is. This is how it is operated the clamping device particularly convenient because the Operator does not have to bend down.
  • Such an operating lever For example, in the released position, it can be roughly horizontal Position and through about 90 ° from this horizontal position Foot pressure moved from above into an approximately vertical clamping position become.
  • a possible constructive education of this Clamping mechanism provides that the operating lever is one Eccentric lever is, or includes an eccentric element, which is such has the effect that the two profile halves of the Clamping device are pressed against each other and thereby one Exercise a positive or frictional connection on the curved strut, making it immovable.
  • the operating lever with the In this variant, the eccentric element can also be pulled by Can easily be released upwards. Then the arcuate strut moved to the desired position and then the operating lever is pressed by foot from above moved back into the clamping position.
  • the arcuate strut can be a tubular strut, for example, which is flat oval, oval or round in cross section.
  • the inclusion of the Clamping device, preferably through the two profile halves is then formed according to this cross section Pipe brace shaped.
  • the inclusion of the two profile halves for the lower rung is usually approximately rectangular, as such Ladder rungs are also roughly rectangular in outline.
  • the Clamping device can for example consist of two extruded Profile halves are produced, which are each similarly shaped.
  • the eccentric element of the actuating lever can be so, for example be designed so that the operating lever when flipped from the released in the clamping position by changing the center distance an eccentric head exerts a pull on a tension element which has an abutment on one of the two profile halves. This will help Push the operating lever down one of the two Profile halves tightened and pressed against the other profile half.
  • FIG. 1 The illustration shows a conductor 10 of the type on which, for example, the present invention is applicable.
  • This conductor 10 has two articulated rung parts on the in the set up position of the conductor 10 at an acute angle to each other take in.
  • this one rung part consists of parallel bars 11, 12 between which cross bars 13 run in the transverse direction.
  • this one rung part consists of parallel bars 11, 12 between which cross bars 13 run in the transverse direction. in the lower end area of the rung part is on the two spars 11, 12 a facility for leveling is provided if both support points of the rung part on the ground in of different heights.
  • an arcuate strut 14 present, which, as you can see, is wider in the transverse direction than that Rung part and together with the two foot parts 15, 16 its ends forms a lower part of the ladder 10.
  • a clamping device 20 is provided, after releasing the arcuate strut 14 opposite the two ladder bars 11, 12 can be moved on an arc line following its contour up to one Position in which the required level compensation results, so that the rung part with the two spars 11, 12 vertically is aligned.
  • the Clamping device 20 actuated so that the arcuate strut 14th in this position.
  • the exact function of the mechanism of the Clamping device 20 is described below with reference to FIG further drawings Figures 3 to 5 explained in more detail.
  • FIG 3 shows an enlarged perspective view of part of the lower area of the ladder 10, in which one of the spars 12 of the Head 10 can recognize as well as part of the arcuate strut 14 and the bottom rung of the ladder 13.
  • This device also includes an operating lever 21 which is shown in Figure 3 in the released approximately horizontal position.
  • This operating lever 21 can now be operated with the foot and off the approximately horizontal to a vertical position down can be pivoted, which ensures that the two Profile halves 22, 23 are pressed against each other. This creates a frictional engagement on the arcuate strut 14 which is then tight is enclosed and no longer across the spars 11, 12th is movable.
  • the clamping action of the clamping device 20 at Operation of the operating lever 21 is based on a Eccentric mechanism, the following with reference to the Figures 4 and 5 is explained in more detail.
  • each of the two profile halves 22, 23 consists in principle three sections, namely a section 26, which is approximately half Rectangle forms a central recessed portion 27 in whose area at one profile half 22 of the actuating lever 21 is articulated and a third section 28, which corresponds approximately half an oval.
  • the two opposite Sections 26 of both profile halves 22, 23 form an inside Rectangular receptacle 25 for how to get from Figure 3 and Figure 5 recognizes rectangular ladder rung 13.
  • the two opposite Sections 28 of the two profile halves 22, 23 form an inside flat oval shaped receptacle 24 for the in outline also flat oval arcuate tubular strut 14, which can be seen in cross section in Figure 5 can recognize.
  • these two Limit recordings 25 and 24 on the inside and in the both sections 30 and 29 abut both profile halves 22, 23 in the clamping position.
  • These sections 30, 31, 32, 29 thus form, so to speak, the abutments, where the two opposite profile halves 22, 23 support.
  • Both profile halves are predominantly longitudinal with respect to one through the clamping device level symmetrically, with Exception of one end in area 29.
  • the two Profile halves 22, 23 shaped somewhat differently and have Formations 38, 39, which are shaped so that both profile halves interlock in the area of these formations.
  • the one of the two projections 39 on one profile half 22 is approximately cylindrical or circular in the side view and the other the two projections 38 of the other profile half 23 is in the Side view ring-shaped, the interior being shaped so that it the other projection 39 positively receives.
  • the projection 38 overlaps the projection 39 of the other profile half 22, so that a joint is formed on this side of the clamping device 20. This ensures that when the operating lever 21 is flipped in the clamping position, the two profile halves 22, 23 on one side where the projections 38, 39 are held together are, while opening the clamping device in FIG.
  • the operating lever 21 has an eccentric head 33, how to Figure 5 can recognize.
  • the actuating lever 21 is therefore at one of the two profile halves 22 mounted eccentrically and pivotably.
  • the Eccentric head 33 is articulated to one end 37 of one Bolt 34.
  • a screw can also be used instead become.
  • the bolt 34 then has, for example, a head 35 or it a screw with screw head or nut is used.
  • the Mother 35 has the area 36 in the middle section of the second Profile half 23 as an abutment. Now the operating lever 21 with the eccentric head 33 in the direction of the arrow in Figure 5 in the vertical, d.
  • the two Profile halves 22, 23 in the area of the receptacle 25 also in the released Position of the clamping device connected to the rung 13 are so that when moving the tubular strut 14 in the the two halves of the profile with the clamping device cannot move with them, but on the lower one Ladder rung 13 are held.
  • the eccentricity results from the fact that the contact area of the Eccentric head 33 from the pivot axis of the actuating lever 21 in the clamping position shown in Figure 5 a slightly larger Distance has as the support area, which is when the Operating lever 21 results in 90 ° in the released position. there the actuating lever 21 moves with the eccentric head 33 when Closing the clamping device via a dead center.
  • a major advantage of the clamping device according to the invention is that the clamping force on the arcuate strut 14 through Friction in the receptacle 24 is generated all around, but at Tightening the clamping device does not produce any force component that the tubular strut 14 moves against the rung 13 because one such displacement of the tubular strut 14 on the rung 13 to a deformation of the strut 14 or generation of a game leads in their storage, which is problematic.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ladders (AREA)
  • Filters And Equalizers (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
EP01128781A 2001-02-09 2001-12-04 Echelle avec dispositif pour compensation du niveau Expired - Lifetime EP1231356B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10106448 2001-02-09
DE10106448 2001-02-09
DE10109947A DE10109947A1 (de) 2001-02-09 2001-03-01 Leiter mit einem Niveauausgleich
DE10109947 2001-03-01

Publications (3)

Publication Number Publication Date
EP1231356A2 true EP1231356A2 (fr) 2002-08-14
EP1231356A3 EP1231356A3 (fr) 2003-01-15
EP1231356B1 EP1231356B1 (fr) 2008-03-05

Family

ID=26008478

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01128781A Expired - Lifetime EP1231356B1 (fr) 2001-02-09 2001-12-04 Echelle avec dispositif pour compensation du niveau

Country Status (4)

Country Link
EP (1) EP1231356B1 (fr)
AT (1) ATE388299T1 (fr)
DE (1) DE50113693D1 (fr)
DK (1) DK1231356T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8162273B2 (en) 2007-06-15 2012-04-24 Ronald Paul Jones Adjustable support structure
EP2634361A1 (fr) 2012-03-02 2013-09-04 Hailo-Werk Rudolf Loh GmbH & Co. KG Échelle et pied d'échelle doté d'un ancrage glissant et pivotant
WO2015112681A1 (fr) * 2014-01-23 2015-07-30 Bigfoot Ladder Systems, Llc Ensemble de mise à niveau et de stabilisation d'échelle

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202008015903U1 (de) 2008-12-02 2009-02-19 Hailo-Werk Rudolf Loh Gmbh & Co. Kg Rollen für eine Leiter und Anordnung aus einer Sprossenleiter und solcher Rollen
DE102015010255A1 (de) 2015-08-07 2017-02-09 Hymer-Leichtmetallbau Gmbh & Co. Kg Leiterfuß für Leitern, Gerüste, Arbeitsbühnen und dergleichen

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2320144A (en) * 1942-10-06 1943-05-25 Johnson Eric Auxiliary ladder leg
GB643565A (en) * 1947-12-02 1950-09-20 Bernhard Volkery Clamps
US3173512A (en) * 1962-06-12 1965-03-16 Sturdy Leonard Frederick Ladder levelling device
FR2621952A1 (fr) * 1987-10-14 1989-04-21 Fameca Sa Dispositif compensateur de niveau pour echelle
DE9002445U1 (de) * 1990-03-02 1991-03-28 Hymer-Leichtmetallbau, 7988 Wangen Leiterfuß für Leitern
EP0677663A1 (fr) * 1994-04-13 1995-10-18 Jani-Jack Limited Pinces
EP0894937A1 (fr) * 1997-07-29 1999-02-03 Hailo-Werk Rudolf Loh GmbH & Co. KG Echelle appuyée

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2320144A (en) * 1942-10-06 1943-05-25 Johnson Eric Auxiliary ladder leg
GB643565A (en) * 1947-12-02 1950-09-20 Bernhard Volkery Clamps
US3173512A (en) * 1962-06-12 1965-03-16 Sturdy Leonard Frederick Ladder levelling device
FR2621952A1 (fr) * 1987-10-14 1989-04-21 Fameca Sa Dispositif compensateur de niveau pour echelle
DE9002445U1 (de) * 1990-03-02 1991-03-28 Hymer-Leichtmetallbau, 7988 Wangen Leiterfuß für Leitern
EP0677663A1 (fr) * 1994-04-13 1995-10-18 Jani-Jack Limited Pinces
EP0894937A1 (fr) * 1997-07-29 1999-02-03 Hailo-Werk Rudolf Loh GmbH & Co. KG Echelle appuyée

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8162273B2 (en) 2007-06-15 2012-04-24 Ronald Paul Jones Adjustable support structure
EP2634361A1 (fr) 2012-03-02 2013-09-04 Hailo-Werk Rudolf Loh GmbH & Co. KG Échelle et pied d'échelle doté d'un ancrage glissant et pivotant
WO2015112681A1 (fr) * 2014-01-23 2015-07-30 Bigfoot Ladder Systems, Llc Ensemble de mise à niveau et de stabilisation d'échelle
CN106133267A (zh) * 2014-01-23 2016-11-16 比格福特兰德系统有限公司 梯子平衡与稳定组件
EP3097247A4 (fr) * 2014-01-23 2017-10-11 Bigfoot Ladder Systems, LLC Ensemble de mise à niveau et de stabilisation d'échelle
CN108266116A (zh) * 2014-01-23 2018-07-10 比格福特兰德系统有限公司 梯子平衡与稳定组件
US10161185B2 (en) 2014-01-23 2018-12-25 Bigfoot Ladder Systems, Llc Ladder leveling and stabilizing assembly
US11242713B2 (en) 2014-01-23 2022-02-08 Bigfoot Ladder Systems, Llc Ladder leveling and stabilizing assembly

Also Published As

Publication number Publication date
DK1231356T3 (da) 2008-06-30
EP1231356B1 (fr) 2008-03-05
DE50113693D1 (de) 2008-04-17
EP1231356A3 (fr) 2003-01-15
ATE388299T1 (de) 2008-03-15

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