EP0957231A1 - Leiter - Google Patents

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Publication number
EP0957231A1
EP0957231A1 EP99303668A EP99303668A EP0957231A1 EP 0957231 A1 EP0957231 A1 EP 0957231A1 EP 99303668 A EP99303668 A EP 99303668A EP 99303668 A EP99303668 A EP 99303668A EP 0957231 A1 EP0957231 A1 EP 0957231A1
Authority
EP
European Patent Office
Prior art keywords
ladder
safety device
side arms
section
main body
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.)
Withdrawn
Application number
EP99303668A
Other languages
English (en)
French (fr)
Inventor
Neophytos Charalambous
Anastasios Georgoudakis
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0957231A1 publication Critical patent/EP0957231A1/de
Withdrawn legal-status Critical Current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
    • E06C7/48—Ladder heads; Supports for heads of ladders for resting against objects

Definitions

  • This invention relates to a ladder. and in particular is concerned with a safety device for attachment to a ladder.
  • Stabiliser devices for attachment to the side rails. or stiles, of a ladder so as to reduce the likelihood of the base of a ladder sliding along the ground are known, for example, from the GB-A-2250312, GB-A-2195693, GB-A-2166793, and US-A-4655322.
  • the present invention is concerned primarily with enhancing the security against slippage of the upper end of a ladder against an upright surface, such as a substantially vertical wall.
  • This invention is also concerned with providing a device that safely allows the upper end of a ladder to be spaced off an upright surface.
  • a safety device for attachment to a ladder, preferably at the upper end thereof so as securely to space the ladder from a generally upright surface, the device comprising a generally elongate body portion and a pair of side arms extending transversely, preferably substantially at 90°, at opposite ends thereof, wherein the side arms are adjustable in length and/or in separation, preferably both.
  • the device of the invention in a preferred form, thus allows the spacing of the ladder from the surface to be varied, and in particular so that it can be selected in accordance with the height of the upper end of the ladder off the ground. It will be appreciated that the spacing of the upper end of the ladder off the wall facilitates work being carried out on the guttering, roof or bay window, for example, of a building.
  • each side arm is variable independently of the length of the other, and this allows the ladder to be safely mounted when located, for example, at the corner or edge of a building.
  • the variation in length may be provided by a slidable extension of each side arm.
  • the spacing apart of the side arms is variable, and each side arm may be moved independently of the other with respect to the body portion. This serves to provide for a variable spacing apart of the contacts between the side arms and the wall, to achieve the required stability of an associated ladder.
  • the body portion is slidably mounted on a transverse extension of each of the side arms, so as, in use, to provide this accommodation.
  • each side arm comprises a slidably-mounted portion, so as, in use, to vary the spacing of the ladder from the upright surface.
  • the co-operating slidably-mounted portions of the device are secured in place by a pin passing therethrough, which is preferably spring-loaded and held captive in a mounting bracket.
  • the co-operating slidably-mounted portions of the device are preferably telescopically arranged one within the other.
  • the device is preferably made of steel, which may be rendered substantially rust free, or of aluminium.
  • the body portion and the side arms are provided as box-section components.
  • each clamping arrangement comprises a pair of brackets mounted on the body portion and defining a channel therewith for receiving, in use, the rung of the ladder, and a closure for retaining the rung in the channel.
  • the device is advantageously provided with non slip portions at its regions of contact with the ladder and with the upright surface. These regions may be provided by a rigid backing plate secured to the device that carries a resilient, for example rubber. pad.
  • the spacing apart and length of such gripping portions on the body of the device are advantageously so as to accommodate ladders of various widths between the side arms.
  • a safety device for attachment to a ladder. preferably to the upper end thereof so as securely to space the ladder from a generally upright surface, the device comprising a generally elongate body portion and a pair of side arms extending transversely, preferably substantially at 90°, at opposite ends thereof, the device comprising means, preferably a clamping arrangement, for securing the device to a rung of the ladder.
  • a ladder comprising a pair of elongate side rails and a plurality of rungs secured therebetween at spaced-apart intervals, the ladder having a safety device in accordance with the present invention secured to one of the rungs thereof, the safety device locating the ladder between the side arms with the side rails being supported by the body portion. preferably in abutment therewith, and preferably being supported by the side arms.
  • the safety device is formed from rectangular stainless steel box sections comprising a main body component 2 of side 3.8 cms (1.5 inches) and length 51 cms (20 inches) and a pair of side arms 4 of side 3.1 cms (1.25 inches) and length 30 cms (12 inches).
  • Each side arm 4 has a box section extension 6 extending at 90° therefrom, that extends by a telescopic sliding motion into opposing ends of the main component 2.
  • Each side arm 4 is open at one end and closed at its other end by a push-fit plastic end cover 5.
  • Each side arm 4 is provided with an extension 10 that is telescopically slidable through the open end thereof.
  • the device thus forms a generally H-configuration in plan. the corners of which are reinforced by metal fillets 8.
  • the body section 2 has an aperture 15 in its upper surface adjacent each end thereof.
  • each side arm 4 has an aperture 17 in its upper surface adjacent each free end thereof, and each side arm extension 6 and side arm insert 10 has three apertures 19 and 21 respectively in its upper surface spaced apart along the lengths thereof.
  • An inverted U-shaped mounting bracket 12 is welded onto the upper surface of each side arm 4 adjacent its open end, and on to the centre body portion 2 adjacent each of its ends.
  • a hole extends through each of the brackets 12 and mates with a hole 17. 15 respectively in the adjacent upper surface of the associated box section.
  • Each bracket 12 retains a spring loaded pin 14 that projects through its associated box-section for engagement with one of the holes 19, 21 in the extensions 6 and inserts 10 respectively.
  • Each insert 10 of the side arms 4 is terminated by a steel backing plate 16 that carries a resilient rubber pad 18 on its outer surface.
  • the plate 16 is threadedly engaged with a captive nut 23 within the side arm inserts 10.
  • Two pairs of metal brackets 20 are welded to the upper and lower surfaces of the main body section 2 spaced apart symmetrically of the mid point along its length. As can be seen from Figure 3, the brackets 20 receive therebetween the upper rung 22 that extends between the side rails 26 of a ladder 24.
  • Each pair of brackets 20 is fitted with a metal retaining clamp 28, which has a non-slip resilient rubber pad insert 30, that interconnects the open ends of the brackets 20 to secure the ladder rung 22 therebetween.
  • the clamp 28 mechanically interlocks with one of the brackets 20, and at its other end the clamp 28 is secured to the other bracket by a ring bolt 32 that engages a nut 33, which may be captively held on the lower bracket 20.
  • each pair of brackets 20 may be formed into a unitary U-shaped component that is welded on three sides, top, bottom and back, to the main body section 2.
  • the resilient pads 18 of the device can be arranged to contact a wall 40 ( Figure 3) at various spacings apart and at various distances from the ladder 24.
  • the upper end of the ladder 24 can be spaced off the wall 40, and the resilient pads 18 of the device ensure large non-slip surfaces of contact with the wall 40.
  • the ladder 24 itself is secured to the device over four regions of contact each with its respective non-slip surface, 30, 34.
  • the device may easily be removed from the ladder 24, by release of the two ring bolts 32, for ease of storage or for transfer to a different ladder.
  • the safety device may alternatively and conveniently be left on a ladder for storage, by withdrawing the side arms 4 from the body 2, rotating them through 90° and re-inserting them, so that the side arms 4 extend parallel to the side rails 26 of the ladder 24. Additional holes could be provided in a side surface of the box-section 2 for re-engagement by the securing pins 14 in this configuration. It is preferred, however, in order to provide a stronger device, that the side arms 4 are retained in the section 2 in their storage configuration by means of a plastic bung that interengages their adjacent ends within the body 2. The bung may be retained in the end of one of the side arms.
  • the safety device in operation is such that a ladder is arranged to be supported at a safe, inclined angle to a wall.
  • the arrangement of box sections 2 and 4 lies substantially horizontally, and the ladder 24 is inclined to the wall 40 at least in part due to the angle of the wedge-shaped rubber gripping components 34.
  • a modified safety arrangement will now be described with reference to Figures 4 and 5.
  • Figure 4 shows a modified side arm 4A for co-operation with the main body section 2 of the embodiment of Figures 1 to 3.
  • the side arm 4A differs substantively from the side arm 4 described above only in that its square-sided transverse extension 6A that fits inside the section 2 is orientated such that its major surfaces are rotated by about 35° respect to the major surfaces of the longitudinal portion 50.
  • these components do not lie substantially in the same plane.
  • the gripping components corresponding to the components 34 of Figures 1 to 3 thus do not need to be wedge-shaped in order to provide the required inclination of the ladder to the wall when the ladder is secured, as before, to the main body section 2.
  • modified longitudinal extension 10A shown in Figure 5, that is telescopically mountable within the longitudinal portion 50 of the modified side arm 4A, is angled at its free end that, in operation, faces a wall, the angling being complementary to that of the side arms 4A with respect to the main body section 2 in order to provide a flat surface facing the wall.
  • the free ends 52 of the extensions 10A are covered with slip-resistant material, similar to the resilient pads 18.
  • the safety device may also conveniently act as a support for a hook to carry a paint pot, paint kettle, or other equipment.
  • the hook may be attached to, or integral with, the body portion of the device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ladders (AREA)
EP99303668A 1998-05-12 1999-05-11 Leiter Withdrawn EP0957231A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9810140 1998-05-12
GB9810140A GB2337787A (en) 1998-05-12 1998-05-12 Ladder stand - off

Publications (1)

Publication Number Publication Date
EP0957231A1 true EP0957231A1 (de) 1999-11-17

Family

ID=10831901

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99303668A Withdrawn EP0957231A1 (de) 1998-05-12 1999-05-11 Leiter

Country Status (2)

Country Link
EP (1) EP0957231A1 (de)
GB (1) GB2337787A (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2831203A1 (fr) * 2001-10-24 2003-04-25 Patrick Andre Gostiaux Ecarteur d'echelle
WO2004035982A2 (en) 2002-10-15 2004-04-29 Trade Associates, Inc. Ladder stabilizer attachment apparatus and methods
WO2006104395A1 (en) * 2005-03-27 2006-10-05 David Laurance Drury Ladder support
EP1706573A4 (de) * 2003-12-12 2010-06-09 Trade Associates Inc Leiterstabilisierungsbefestigungs-vorrichtung und -verfahren
US7789199B2 (en) 2002-10-15 2010-09-07 Trade Associates, Inc. Ladder stabilizer attachment apparatus and methods
US9534443B1 (en) 2011-12-27 2017-01-03 Robert C. Bogart Ladder and related methods
EP3819457A1 (de) * 2019-11-08 2021-05-12 Wolfgang Wille Leitersicherung zum schachteinstieg

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2487064B (en) * 2011-01-06 2014-04-30 Gordon Peter Cornfield Stabilising frame for the top of ladders
CA2936214A1 (en) * 2016-07-14 2018-01-14 Richard Milton Ladder safety device

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2327317A (en) * 1941-10-09 1943-08-17 Fred D Randall Attachment for ladders
DE2851987A1 (de) * 1978-12-01 1980-06-12 Walter Kuemmerlin Stuetzvorrichtung fuer leitern
GB2115474A (en) * 1982-02-06 1983-09-07 Samuel David Smith Ladder attachments
US4655322A (en) 1986-07-09 1987-04-07 Mittanck Leon R Clamp for safety leg of a ladder, and ladder equipped therewith
GB2166793B (en) 1984-11-10 1987-09-23 Ian Simpson Stabilizing means for ladders
FR2600115A1 (fr) * 1986-06-11 1987-12-18 Spie Trindel Stabilisateur d'echelle
GB2195693A (en) 1986-10-02 1988-04-13 Stabilad Ltd Ladder stabiliser
GB2250312A (en) 1990-11-08 1992-06-03 Abru Aluminium Ltd A stabiliser device for a ladder
FR2699221A1 (fr) * 1992-12-14 1994-06-17 Mondelin Roger Dispositif adaptable sur échelle autorisant la pose des papiers peints et produits similaires.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2144168A (en) * 1983-07-21 1985-02-27 Alexander Benjamin Mar Fleming Ladder stabiliser
US5121814A (en) * 1990-04-06 1992-06-16 Southern Don L Adjustable ladder stand-off brace for corner walls
GB9519203D0 (en) * 1995-09-20 1995-11-22 Elliott Colin Ladder capacity arm

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2327317A (en) * 1941-10-09 1943-08-17 Fred D Randall Attachment for ladders
DE2851987A1 (de) * 1978-12-01 1980-06-12 Walter Kuemmerlin Stuetzvorrichtung fuer leitern
GB2115474A (en) * 1982-02-06 1983-09-07 Samuel David Smith Ladder attachments
GB2166793B (en) 1984-11-10 1987-09-23 Ian Simpson Stabilizing means for ladders
FR2600115A1 (fr) * 1986-06-11 1987-12-18 Spie Trindel Stabilisateur d'echelle
US4655322A (en) 1986-07-09 1987-04-07 Mittanck Leon R Clamp for safety leg of a ladder, and ladder equipped therewith
GB2195693A (en) 1986-10-02 1988-04-13 Stabilad Ltd Ladder stabiliser
GB2250312A (en) 1990-11-08 1992-06-03 Abru Aluminium Ltd A stabiliser device for a ladder
FR2699221A1 (fr) * 1992-12-14 1994-06-17 Mondelin Roger Dispositif adaptable sur échelle autorisant la pose des papiers peints et produits similaires.

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2831203A1 (fr) * 2001-10-24 2003-04-25 Patrick Andre Gostiaux Ecarteur d'echelle
WO2004035982A2 (en) 2002-10-15 2004-04-29 Trade Associates, Inc. Ladder stabilizer attachment apparatus and methods
EP1558828A4 (de) * 2002-10-15 2009-06-24 Trade Associates Inc Leiterstabilisierungsbefestigungs-vorrichtung und -verfahren
US7789199B2 (en) 2002-10-15 2010-09-07 Trade Associates, Inc. Ladder stabilizer attachment apparatus and methods
EP1706573A4 (de) * 2003-12-12 2010-06-09 Trade Associates Inc Leiterstabilisierungsbefestigungs-vorrichtung und -verfahren
WO2006104395A1 (en) * 2005-03-27 2006-10-05 David Laurance Drury Ladder support
US9534443B1 (en) 2011-12-27 2017-01-03 Robert C. Bogart Ladder and related methods
EP3819457A1 (de) * 2019-11-08 2021-05-12 Wolfgang Wille Leitersicherung zum schachteinstieg

Also Published As

Publication number Publication date
GB2337787A (en) 1999-12-01
GB9810140D0 (en) 1998-07-08

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