WO2009019162A1 - Accessoire d'échelle - Google Patents

Accessoire d'échelle Download PDF

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Publication number
WO2009019162A1
WO2009019162A1 PCT/EP2008/059878 EP2008059878W WO2009019162A1 WO 2009019162 A1 WO2009019162 A1 WO 2009019162A1 EP 2008059878 W EP2008059878 W EP 2008059878W WO 2009019162 A1 WO2009019162 A1 WO 2009019162A1
Authority
WO
WIPO (PCT)
Prior art keywords
ladder
accessory
fastening
fastening beam
hand
Prior art date
Application number
PCT/EP2008/059878
Other languages
English (en)
Inventor
Per-Olof Eriksson
Marcus Holmberg
Original Assignee
Telesteps Ab
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 Telesteps Ab filed Critical Telesteps Ab
Priority to DK08786519.2T priority Critical patent/DK2181234T3/da
Priority to ES08786519.2T priority patent/ES2646613T3/es
Priority to CN200880101819.XA priority patent/CN101772613B/zh
Priority to EP08786519.2A priority patent/EP2181234B1/fr
Publication of WO2009019162A1 publication Critical patent/WO2009019162A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/48—Ladder heads; Supports for heads of ladders for resting against objects
    • 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
    • E06C1/34—Ladders attached to structures, such as windows, cornices, poles, or the like
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/48—Ladder heads; Supports for heads of ladders for resting against objects
    • E06C7/482—Supports specially adapted for resting the ladder against or in a corner

Definitions

  • the present invention relates to a ladder accessory comprising a bent component connected to a fastening beam extending in an angle close to perpendicular to a plane of the bent component.
  • Ladders are a common means used to enable a user to reach higher, for example on a wall, a telephone post, or the like. Most ladders comprise two uprights, or ladder bars, which are interconnected by ladder steps. During use, the user climbs the ladder by stepping up on the ladder steps.
  • the most common setup is to lean an upper portion of the ladder bars towards a surface, e.g. a wall, an outer corner of the wall, an inner corner of the wall, a telephone post, or the like. Due to the different shapes of e.g. a flat wall and a telephone post, an ordinary ladder will not be able to lean in a steady way against both kinds of surfaces.
  • a flat wall and a telephone post Due to the different shapes of e.g. a flat wall and a telephone post, an ordinary ladder will not be able to lean in a steady way against both kinds of surfaces.
  • Another drawback with ladders used on a flat surface is the fact that the ladder bars are leaning towards the area t
  • several attempts have been made to reduce the problem of leaning the ladder against surfaces having different shapes, and hence increase the flexibility of the ladder.
  • US 6 691 825 describes a ladder accessory having two arms extending from a centre portion of a ladder step to give support for a ladder leaning towards an outer corner of a wall.
  • the arms of US 6 691 825 can be mounted in two different ways to achieve two different positions, namely for enabling steady support for corners and for posts.
  • US 6 691 825 does, however, fail to describe a solution to the problem of increasing a working area for a use of the ladder.
  • US 4 502 566 describes a ladder accessory adapted to increase the working area for a person standing on a ladder leaning towards a wall.
  • This ladder accessory can only be used in one (or possibly two) position(s), and has hence a rather limited use.
  • US 6 408 083 discloses a ladder accessory for being attached to an upper portion of the ladder bars of a ladder.
  • the ladder accessory will help a user standing on the ladder to be suspended from the wall.
  • the ladder accessory of US 6 408 083 can only be used in one position.
  • US 5 850 894 relates to a ladder kit comprising two supports (20) which are rotatable around a joint (30). The rotatability of the joint makes it possible to adjust the angle between the axis of the ladder stiles and the supports. It is not possible to adjust the width between the supports.
  • WO 2004/042182 discloses a ladder stabilizing device including securing means (1) engaged to a ladder side rail (2) by clamping at any one of a plurality of locations along the side rail, and a support strut (8) for locating against a structure and lockably engagable with the said securing means (1) in multiple positions with respect to the securing means.
  • the device according to this document is adapted to be fitted to a ladder having stiles with a square cross section. For stiles having different cross sections, the proposed fastening means (1) will not provide a sturdy enough fastening.
  • WO 94/29561 (by the same applicant as US 5 850 894) relates to a similar product as described in US 5 850 894.
  • US 2005/0023084 relates to a ladder support comprising an elongate beam extending through the axis of the stiles of the ladder.
  • the elongate arm has a telescoping function, and the ends of the arm are provided with support feet (46) that can be leaned towards e.g. a wall.
  • the telescoping function of the elongate arm makes it possible to adjust the distance between the support feet. It is, however, not possible to adjust the distance between the ladder and the wall.
  • US 6 405 828 describes a ladder accessory resembling the one described in US 5 850 894, but the joint enabling rotation is situated very close to the support feet.
  • the object of the present invention is to provide a ladder accessory that combines many of the features of the ladders described above, which can be used in many different positions, and which is easy to retrofit on existing ladders.
  • the invention solves the above and other problems by providing a ladder accessory for a ladder having stiles with a circular cross-section, the ladder accessory comprising a bent component connected to a fastening beam extending in an angle close to perpendicular to a plane of the bent component.
  • An outer diameter of the fastening beam is such that it fits within a ladder bar of a ladder.
  • a beam connecting the bent component and the fastening beam could be provided.
  • the fastening beam could be provided with locking means enabling the fastening beam to be fastened to the ladder bar.
  • the locking means could allow the fastening beam to be rotated to enable fastening in different positions.
  • the locking means could comprise holes arranged in the fastening beam.
  • the holes could be adapted to lock the fastening beam by interacting with pins.
  • the pins could be attached to sledges, which are slidably mounted on a top rung of the ladder.
  • the fastening means could also comprise a threaded bolt, extending through the centre of the fastening beam and engaging an end piece, provided with a beveled surface, said beveled surface cooperating with a corresponding beveled surface of the fastening beam, such that the fastening beam is fastened by friction as the threaded bolt is tightened.
  • an angle between the fastening beam and the beam could be 95-115 degrees.
  • Fig. Ia is a perspective view showing a first embodiment of a left-hand ladder accessory according to the present invention
  • Fig. Ib is an end view of the first embodiment of the left-hand ladder accessory of Fig. Ib,
  • Fig. Ic is a side view of the first embodiment of the ladder accessory of Figs. Ia and Ib,
  • Fig. Id is an end view showing a right- and left-hand ladder accessories according to the first embodiment fastened to a top portion of a ladder
  • Fig. Ie is a perspective view of a second embodiment of the ladder accessory ofFig. 1,
  • Fig. If is a side view of the second embodiment of the ladder accessory,
  • Fig. Ig is a front view of the second embodiment of the ladder accessory
  • Fig. Ih is a top view of the second embodiment of the ladder accessory
  • Fig. 2 is a perspective view showing a first use of right-hand and left-hand ladder accessories according to the first embodiment of the present invention
  • Fig. 3 is a perspective view showing a second use of right-hand and left-hand ladder accessories according to the first embodiment of the present invention
  • Fig. 4 is a perspective view showing a third use of right-hand and left-hand ladder accessories according to the first embodiment of the present invention
  • Fig. 5 is a perspective view showing a fourth use of right-hand and left-hand ladder accessories according to the first embodiment of the present invention.
  • Fig. 6 is a perspective view showing a fifth use of right-hand and left-hand ladder accessories according to the first embodiment of the present invention.
  • Fig. 7 is a perspective view showing a sixth use of right-hand and left-hand ladder accessories according to the first embodiment of the present invention.
  • Fig. 8 is a perspective view showing a seventh use of right-hand and left-hand ladder accessories according to the first embodiment of the present invention
  • Fig. 9 is a perspective view showing a eighth use of right-hand and left-hand ladder accessories according to the first embodiment of the present invention
  • Fig. 10 is a perspective view showing a ninth use of right-hand and left-hand ladder accessories according to the first embodiment of the present invention.
  • a left-hand ladder accessory IOOL according to a first embodiment of the present invention comprises a bent portion 110, having first and second shanks 120, 130 interconnected by a curved portion 140.
  • the ends of the bent portion 110 could comprise end caps 150, 150'.
  • a first end 160' of a beam 160 is fastened such that the beam 160 extends perpendicular from the shank on which it is fastened.
  • a second end 160" of the beam 160 is joined to a first end 170' of a fastening beam 170.
  • the fastening beam 170 extends in a direction that is slightly offset from a perpendicular direction as compared to the plane of the bent portion 110, i.e. an angle ⁇ (shown in Fig. Ic) is slightly more than 90°, e.g. 90°-120°.
  • the offset from the perpendicular direction should roughly correspond to the angle of inclination of a ladder leaning towards a wall (the ladder being denoted 300 in Figs. 2- 11).
  • an angle CC indicating the angle between the fastening beam 170 and the shank 130, is shown.
  • the angle CC is preferably somewhat larger than 90°, e.g. 95°- 115°.
  • the ladder accessory IOOL comprises some kind of fastening means; in the embodiment shown in Figs. Ia, Ib and Ic, the fastening means are holes 180, which are adapted to receive a pin, in a way to be described below with reference to Fig. Id.
  • a set of ladder accessories comprising a right-hand ladder accessory IOOR according to the first embodiment and a left-hand ladder accessory IOOL according to the first embodiment is shown mounted on a ladder 300.
  • the ladder accessories are fastened to ladder bars 310, 320 of the ladder 300, partly by insertion of the fastening beams 170 of the respective ladder accessories IOOR and IOOL into a top portion of the ladder bars 310, 320, and partly due to interaction between the holes 180 and pins 500, 500' which are mounted on sledges 510, 510', respectively.
  • the sledges are slidably mounted on a top rung 330, which interconnects the two ladder bars 310, 320. The slidability of the sledges allows the interaction between the pins 500, 500' and the holes 180 to be controlled; by moving the sledges away from the fastening beams, i.e.
  • the pins 500, 500' are retracted from the holes 180, which interrupts the interconnection between the pins and the holes; in this position, the fastening beams 170 of the ladder accessories IOOR and IOOL will not be locked by the interaction with the pins 500, 500', and can hence be withdrawn from, or rotated within, the ladder bars 310, 320.
  • a second embodiment of a left-hand ladder accessory IOOL' is shown.
  • the second embodiment resembles the first embodiment, but the shank 130 is provided with a crossbeam 135, an axis of which extending perpendicular to the axis of the shank 130.
  • the ends of the crossbeam 135 are provided with end caps 150.
  • the design of the left-hand ladder accessory IOOL' according to the second embodiment is identical with the design of the ladder accessory IOOL according to the first embodiment, except for the angle CC of the first embodiment being narrower than an angle ⁇ ' of the second embodiment. Moreover, the holes 180 of the second embodiment are placed on three levels.
  • Fig. Ig This angle refers to the angle between the fastening beam 170 and the shank 120.
  • the angle ⁇ ' is of course also present for the first embodiment, and it may be close to 90 degrees.
  • each fastening beam 170 There are several holes 180 provided in each fastening beam 170; hence, it is possible to adjust an angle between the beam 160 and the rung 330. This makes it possible to adapt position of the ladder accessory for various uses; those uses are described below with reference to Figs. 2-11.
  • the fastening beam 170 is provided with some kind of locking means that allows the fastening beam 170 to be fastened in the ladder bar 310 or 320 of the ladder 300.
  • Such means could e.g. be the holes 180 provided over a circumference of the fastening beam 170.
  • the fastening of the fastening beam to the top ladder bar 310 or 320 might be provided by a threaded bolt (not shown), extending through the centre of the fastening beam 170.
  • the threaded bolt may be threadingly engaged to an end piece (not shown), provided with a beveled surface.
  • the second end 170" of the fastening beam is provided with a corresponding beveled surface.
  • This surface may be arranged by the cutting of the fastening beam 170, such that the beveled surface is the cut end of the fastening beam 170. In other embodiments, the beveled surface might be arranged by welding a plate to the cut end.
  • a fastening means according to this embodiment resembles the mechanism used to fasten the steering bar of a bicycle to the front fork. In order to lock the fastening beam according to this embodiment of the invention to either of the ladder bars 310 or 320, the end piece 200, partly threaded onto the threaded bolt, and the end 170" of the fastening beam 170 are inserted into either of the ladder bars 310 or 320.
  • the bolt is rotated such that the threads of the bolt and the end piece interact to pull the end piece and the beveled surface towards one another.
  • the beveled surface of the end piece and the beveled surface will interact such that the end piece will be pressed against an inner surface (not shown) of the ladder bars, and the pressure will provide the locking action.
  • a first use of the pair of the right-hand and left-hand ladder accessories IOOL and IOOR, respectively, is shown.
  • the left-hand ladder accessory IOOL is fastened to the left-hand ladder bar 320
  • the right-hand ladder accessory IOOR is fastened to the right-hand ladder bar 310.
  • the end caps 150, 150' lean against a straight wall.
  • the angle between the rung 330 and the beams 160 is about 90 degrees (seen from above); hence, the ladder will be supported a certain distance, equaling at least the length of either of the shanks 120 or 130 plus the length of the beams 160, from the wall.
  • the end caps 150, 150' will lean on the wall with a distance from one another that is larger than the distance between the ladder bars 310, 320.
  • the combination of a large distance between the support points, the ladder bars and the wall will provide a large undisturbed working area for a person standing on the ladder.
  • the first use could be valuable e.g. for performing paint jobs on a wall. It may also be possible to use the end caps 150, 150' that do not rest against the wall for hanging e.g. cans containing e.g. paint.
  • Fig. 3 shows a second use of a pair of ladder accessories IOOR and 10OL.
  • the mounting of the ladder accessories is identical for the second use and the first use, but according to the second use, the ladder accessories are used to provide a steady support for a ladder leaning towards an outer corner of a e.g. a wall. Due to the dimensions of the ladder accessories, all end caps 150, 150' will be in engagement with the walls forming the corner; although this feature is not entirely necessary to achieve a steady support, the more support points, the steadier the ladder will lean towards the corner of the wall.
  • Fig. 4 shows a third use of a pair of left-hand and right-hand ladder accessories according to the present invention.
  • the beams 160 are mounted in-line with the rung 330 of the ladder.
  • This use is adapted for a flat wall, and provides a wide working area for a user; compared to the first use a person working on the ladder will come closer to the wall, and still have a large distance between the support points between the end caps and the wall.
  • the shanks 120, 130 whose corresponding end caps 150, 150' are not in contact with the wall can be used for support for a user and also for hanging working tools.
  • Fig. 5 shows a fourth use of the pair of ladder accessories of the present invention.
  • the angle of the ladder accessories is set to be about in- between the angle used in the first and the third use; by such setting, there will be an as large distance as possible between the end caps 150, 150', and the distance between the wall, which preferably is flat for this use, and the top of the ladder will be roughly half of the distance achieved with the first use.
  • a fifth use of the ladder accessory pair of the present invention is shown.
  • the beams 160 are angled away from the wall; hence, the ladder will lean on the wall in a way that does not differ from how a ladder without ladder accessories will lean on the wall.
  • the ladder accessories will extend in a direction away from the wall and will serve as a support for a user.
  • a sixth setting, or use, of the ladder accessory pair suitable for e.g. a telephone post P is shown.
  • the ladder accessories are angled such that a narrow angle, e.g. 45 degrees, between the beams 160 and the rung 330 is achieved. Consequently, the shanks 120, 130 of the right-hand and left-hand ladder accessories IOOR and IOOL will delimit an area roughly corresponding to e.g. a telephone post or the like.
  • the sixth use is extremely beneficial in combination with a telescopic ladder; if a telescopic ladder is used, it is possible to arrange the ladder accessories around the telephone post when the ladder is unextended, and thereafter raise the ladder by using the telescopic function of the ladder.
  • the uses one to six have all the same basic setup, namely that the left-hand ladder accessory is fastened to the left-hand ladder bar and the right-hand ladder accessory is fastened to the left-hand ladder bar.
  • three uses, denoted seven to nine, wherein the right-hand ladder accessory is fastened to the left-hand ladder bar and the left-hand ladder bar is fastened to the right-hand ladder bar will be described. It should be noted that it is not necessary to actually switch the positions of the ladder accessories; it is simply enough to turn the ladder 180 degrees, such that the formerly right-hand ladder bar will end up to the left, and become the new left-hand ladder bar, and vice versa.
  • a seventh use of the ladder accessories according to the present invention is shown.
  • the angle between the beams 160 and the ladder steps roughly corresponds to the angle used for the sixth setting, i.e. 45 degrees, but, as mentioned, for the seventh use, the ladder accessories are used such that the right-hand ladder accessory IOOR is mounted on the left-hand ladder bar 320 and the left-hand ladder accessory IOOL is mounted on the right-hand ladder bar 310.
  • the result will be that the ladder accessories will form a support partly encircling the telephone post or the like.
  • the seventh use does not provide an as good support as the sixth use, but is more convenient, since it is possible to retract the ladder accessories from the post without altering the setting of the ladder accessories.
  • the sixth use cannot be used if the right-hand ladder accessory IOOR and the left-hand ladder accessory IOOL are mounted on the same height; if so, the ladder accessories will collide.
  • an eighth use of the pair of ladder accessories is shown.
  • the eighth use resembles the seventh use, but either of the ladder accessories is angled away from the post to offer a means for e.g. hanging of tools, paint cans or the like.
  • a ninth use of the pair of ladder accessories is shown.
  • the ninth use makes it possible to lean the ladder provided with the ladder accessories towards an inner corner of the wall.
  • the ladder accessories are mounted such that the beam 160 extends perpendicular as compared to the ladder steps of the ladder.
  • the holes 180 of the fastening beam 170 are provided such that the pins 500, 500' are able to extend through the entire width of the fastening beam 160, i.e. such that the pins 500, 500' are aligned to penetrate two holes 180 located on opposite sides of the fastening beam 170.
  • the holes 180 are provided in 45-degree intervals, i.e. such that it is possible to fasten the ladder accessory in any 45-degree angle compared to the rung 330.
  • the holes 180 could be arranged on different levels; in a preferred embodiment, four primary holes, mutually separated by 90 degrees, are provided on a first level, and four secondary holes, also mutually separated by 90 degrees, but separated 45 degrees as compared to the primary holes, are provided on a second level.
  • two or more sets of holes 180 could be provided on different heights; by providing several sets of holes 180, it is possible to fasten the ladder accessories of different heights, which e.g. will facilitate the seventh use as described above.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Ladders (AREA)

Abstract

L'invention concerne un accessoire d'échelle (100) comprenant un élément plié (110, 120, 130) raccordé à une traverse de fixation (170) s'étendant dans un angle presque perpendiculaire à un plan de l'élément plié. Un diamètre externe de la traverse de fixation est tel que la traverse peut s'insérer à l'intérieur d'un barreau d'échelle (310, 320) d'une échelle (300).
PCT/EP2008/059878 2007-08-07 2008-07-28 Accessoire d'échelle WO2009019162A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DK08786519.2T DK2181234T3 (da) 2007-08-07 2008-07-28 Sæt af stigetilbehørsdele
ES08786519.2T ES2646613T3 (es) 2007-08-07 2008-07-28 Un conjunto de accesorios de escalera
CN200880101819.XA CN101772613B (zh) 2007-08-07 2008-07-28 梯子配件
EP08786519.2A EP2181234B1 (fr) 2007-08-07 2008-07-28 Ensemble d'accessoires d'échelle

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE0701833-6 2007-08-07
SE0701833 2007-08-07
SE0702193-4 2007-09-28
SE0702193 2007-09-28

Publications (1)

Publication Number Publication Date
WO2009019162A1 true WO2009019162A1 (fr) 2009-02-12

Family

ID=39811693

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/059878 WO2009019162A1 (fr) 2007-08-07 2008-07-28 Accessoire d'échelle

Country Status (5)

Country Link
EP (1) EP2181234B1 (fr)
CN (1) CN101772613B (fr)
DK (1) DK2181234T3 (fr)
ES (1) ES2646613T3 (fr)
WO (1) WO2009019162A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011043663A1 (fr) 2009-10-07 2011-04-14 Lampe Holding B.V. Echelle portable comportant un dispositif de recul
EP3839196A1 (fr) * 2019-12-16 2021-06-23 Massimo Martini Échelle agricole

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1918293A (en) 1931-03-02 1933-07-18 Ernest L Seiler Rungless ladder
US2388892A (en) 1944-05-08 1945-11-13 Columblan Rope Company Ladder
CH241854A (fr) 1944-09-19 1946-04-15 Tschaeppaet Hans Echelle démontable.
US2744674A (en) 1954-09-21 1956-05-08 John E Smith Sectional ladder
US4502566A (en) 1983-03-28 1985-03-05 Little Giant Industries, Inc. Wall stand-off apparatus
EP0232206A2 (fr) 1986-02-05 1987-08-12 Anaplastiki Ltd. Dispositif de sécurité pour l'appui d'échelles et d'échaffaudage sur des poteaux, arbres, colonnes, ou façades d'édifices
WO1994029561A2 (fr) 1993-06-15 1994-12-22 Edwin Busenhart Echelle avec appui, dispositif de fixation, appui et systeme modulaire de construction d'echelles legeres
US5850894A (en) 1992-06-16 1998-12-22 Busenhart; Edwin Ladder, kit, and positioning support for ladder
US6405828B1 (en) 2000-09-01 2002-06-18 William A. Redding Protective ladder attachment
US6409083B1 (en) 1997-03-20 2002-06-25 Euchner Gmbh & Co. Safety switch
US6691825B2 (en) 2002-04-24 2004-02-17 Voy Haig Adjustable ladder stabilizer and tool holder
WO2004042182A1 (fr) 2002-11-05 2004-05-21 Rjs Engineering Services Pty Ltd Dispositif de stabilisation d'echelle
US20050023084A1 (en) 2002-08-09 2005-02-03 Lazarus Mark J. Safety device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2230346Y (zh) * 1995-05-31 1996-07-03 西安供电局 升降梯防滑夹
DE20310659U1 (de) * 2003-07-11 2003-09-18 Scherer, Reinhold, 57482 Wenden Leitersystem für Beladung von Fahrzeugdächern (z.B. PKW, Van's, Geländewagen, Wohnwagen, Busse, Wohnmobile)

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1918293A (en) 1931-03-02 1933-07-18 Ernest L Seiler Rungless ladder
US2388892A (en) 1944-05-08 1945-11-13 Columblan Rope Company Ladder
CH241854A (fr) 1944-09-19 1946-04-15 Tschaeppaet Hans Echelle démontable.
US2744674A (en) 1954-09-21 1956-05-08 John E Smith Sectional ladder
US4502566A (en) 1983-03-28 1985-03-05 Little Giant Industries, Inc. Wall stand-off apparatus
EP0232206A2 (fr) 1986-02-05 1987-08-12 Anaplastiki Ltd. Dispositif de sécurité pour l'appui d'échelles et d'échaffaudage sur des poteaux, arbres, colonnes, ou façades d'édifices
US5850894A (en) 1992-06-16 1998-12-22 Busenhart; Edwin Ladder, kit, and positioning support for ladder
WO1994029561A2 (fr) 1993-06-15 1994-12-22 Edwin Busenhart Echelle avec appui, dispositif de fixation, appui et systeme modulaire de construction d'echelles legeres
US6409083B1 (en) 1997-03-20 2002-06-25 Euchner Gmbh & Co. Safety switch
US6405828B1 (en) 2000-09-01 2002-06-18 William A. Redding Protective ladder attachment
US6691825B2 (en) 2002-04-24 2004-02-17 Voy Haig Adjustable ladder stabilizer and tool holder
US20050023084A1 (en) 2002-08-09 2005-02-03 Lazarus Mark J. Safety device
WO2004042182A1 (fr) 2002-11-05 2004-05-21 Rjs Engineering Services Pty Ltd Dispositif de stabilisation d'echelle

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011043663A1 (fr) 2009-10-07 2011-04-14 Lampe Holding B.V. Echelle portable comportant un dispositif de recul
EP2711496A2 (fr) 2009-10-07 2014-03-26 Lampe Holding B.V. Échelle potable avec dispositif vertical
US8844675B2 (en) 2009-10-07 2014-09-30 Lampe Holding B.V. Portable ladder with a stand off device
US9488003B2 (en) 2009-10-07 2016-11-08 Lampe Holding B.V. Portable ladder with a stand off device
EP3839196A1 (fr) * 2019-12-16 2021-06-23 Massimo Martini Échelle agricole

Also Published As

Publication number Publication date
CN101772613B (zh) 2013-08-21
DK2181234T3 (da) 2017-11-20
CN101772613A (zh) 2010-07-07
EP2181234A1 (fr) 2010-05-05
ES2646613T3 (es) 2017-12-14
EP2181234B1 (fr) 2017-08-23

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