WO2006043066A1 - Support d'échelle - Google Patents

Support d'échelle Download PDF

Info

Publication number
WO2006043066A1
WO2006043066A1 PCT/GB2005/004045 GB2005004045W WO2006043066A1 WO 2006043066 A1 WO2006043066 A1 WO 2006043066A1 GB 2005004045 W GB2005004045 W GB 2005004045W WO 2006043066 A1 WO2006043066 A1 WO 2006043066A1
Authority
WO
WIPO (PCT)
Prior art keywords
ladder
region
support according
support
rail
Prior art date
Application number
PCT/GB2005/004045
Other languages
English (en)
Inventor
William Kelsall
Original Assignee
William Kelsall
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 William Kelsall filed Critical William Kelsall
Priority to GB0709625A priority Critical patent/GB2434174B/en
Publication of WO2006043066A1 publication Critical patent/WO2006043066A1/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

Definitions

  • the present invention relates to a ladder support for the stabilisation of ladders.
  • One way to achieve this is for one person to hold the foot of the ladder, so that another person may climb it and work safely near its top.
  • US patent application publication 2004/0089501 discloses a ladder support attachment including a pair of hooks for attachment to a rung of a ladder, a stop member adjacent the hooks which in use rests against rails of the ladder, and a pair of legs separating a linear support member from the stop member, which support member in use rests horizontally against a vertical object.
  • a ladder can be positioned such that it defines a predetermined angle with respect to the vertical object, and this document suggests an angle of about 75.5° recommended by the US Occupational Safety and Health Administration.
  • the predetermined angle is defined by the distance between the stop member and the hooks.
  • a ladder must not be rested against a window, for example, since the force exerted on the window by the ladder may be sufficient to break or damage it. Instead, the ladder must be rested to one side of, below or above the window, where a brick wall or other suitable object can withstand the force.
  • Another object of the present invention is a ladder support which provides stabilisation in a greater variety of situations.
  • Another object of the present invention is to provide a ladder support which is easier to use than the prior art ladder support described above.
  • horizontal defines a line or plane being parallel with the horizon, with the term “vertical” being used correspondingly .
  • a ladder support comprising an abutment region to rest on an object against which a ladder structure is to be positioned and, remote from the region, an attachment for securing at least one rail of the ladder of the ladder structure to hold the rail(s), when the ladder is attached to the support, at a predetermined angle with respect to the abutment region corresponding to the ladder being at an angle of incline in the region of 70° to 80° with the horizontal .
  • the angle of incline is in the range 70° to 75°, particularly 71° to 75°.
  • the support includes one or more of the following features :-
  • the attachment comprises at least one bracket which has, adjacent an end remote from the region, means for securing a rail at a predetermined angle;
  • the attachment comprises at least one arm which engages with a rail of the ladder to hold the rail at the predetermined angle; • The attachment comprises two arms to hold a rail of the ladder therebetween at the predetermined angle;
  • the two arms are adjustably positioned relative to one another;
  • the attachment comprises two brackets, each with two arms to engage a rail therebetween; •
  • the attachment means comprises a bar to extend between the rails and hold the rails at the predetermined angle;
  • the bar is beatable within a rung of the ladder; • The attachment is adjustably locatable along the main dimension of the region;
  • the main dimension of the region is substantially greater than a typically separation of the rails of a ladder
  • the region has a resiliently deformable layer on a side to rest against an object
  • the layer comprises a neoprene material
  • the abutment region is of flat planar form
  • the abutment region comprises at least one abutment point or edge
  • the predetermined angle is 71 ° or thereabouts.
  • the present invention also provides a ladder having a ladder support comprising a flat planar abutment region to rest on an object against which the ladder is to be positioned and, remote from the region, an attachment for securing at least one rail of the ladder of the ladder structure to hold the rail(s) at a predetermined angle with respect to the region corresponding to the ladder being at an angle of incline in the region of 70° to 80° with the horizontal.
  • the ladder support is fixed to the ladder.
  • a planar surface constituted by the region ensures that the force applied by the ladder is dispersed over the object, such that the support may be rested against such objects as windows without causing damage thereto. Moreover, the incline of the ladder at the predetermined angle ensures that the majority of the mass of the ladder and anything on it acts downwardly, rather than towards/against the object.
  • such a ladder support ensures that the ladder is held at a desired angle simply by placing the region flush against the vertical object; the ladder does not have to be incrementally adjusted while examining the position of the support relative to the ground. Furthermore, in the present invention, the engagement between the ladder support does not inhibit or impede access to the ladder, so that there is no restriction to the ladder, its rungs or its rails as a person climbs up it.
  • the present invention also provides a ladder support comprising an abutment region to rest on an object against which a ladder structure is to be positioned and an attachment for securing a ladder, wherein the attachment is adjustably locatable along the main dimension of the region.
  • the present invention provides an arrangement which allows ready, fast and easy adjustment of the elements of the ladder support and/or ladder, enabling it to be used in a wide variety of situations.
  • the ladder support allows the ladder to be placed immediately adjacent an obstruction or a jutting-out wall, e.g. a bay window.
  • an obstruction or a jutting-out wall e.g. a bay window.
  • the ladder can be placed adjacent another, vertical wall at right angles to the first wall simply by adjusting and fixing the abutment region to be to one side.
  • the support may be integral with the ladder, or may be separate; it may be fixed or removably attachable to, and/or adjustably positioned relative to, the ladder.
  • Figure 1 is a perspective view of a ladder support which is a first embodiment of the invention
  • Figure 2 is a front elevation of part of the ladder support of Figure 1
  • Figure 3 is a side elevation of a ladder support which is a second embodiment of the invention.
  • Ladder support 100 as shown in Figures 1 and 2 includes a flat plate 112 defining a continuous planar surface 114 on which is a neoprene layer 116 of material.
  • neoprene layer 116 On the side of plate 112 remote from neoprene layer 116 are longitudinal flange sections 118 and 120 forming a rail 122 and longitudinal edges 124 and 126.
  • the support 100 includes two brackets 128, 130 spaced apart along rail 122, and base 132, 134 of each bracket is secured by a nut-and-bolt 136, 138 (the latter not shown) arrangement to rail 122.
  • each bracket 128, 130 there are provided two spaced-apart side arms 144, 146, 148, 150, each of which is in a plane at a predetermined angle ⁇ to base 132, 134 and hence also to plate 112 when the plate 112 and respective bracket 128, 130 are secured together.
  • the angle ⁇ corresponds to an angle of incline of the ladder with the horizontal being in the range 70° to 80° preferably 70° to 75°; advantageously 71° or thereabouts.
  • a bar 152 is passed through a rung 153 of ladder 154 and through apertures 156, 158 (not visible) in respective brackets 128, 130 between the side arms 144, 146, 148, 150, and secured thereto by means of nuts 160.
  • the side arms engage the sides of the rails and therefore ensure that the rails of the ladder are maintained at that angle relative to the planar surface of plate 112.
  • ladder support 100 is attached to an upper portion of ladder 154 and then the ladder is positioned with neoprene layer 116 of plate 112 lying against a generally vertical surface, so that the ladder assumes an angle of incline dictated by ladder support 100 (and more specifically the ⁇ angle between plate 112 and side arms 144, 150), typically being the optimum angle of inclination for a ladder.
  • Side arms 146 and 150 can be adjustably positioned and secured by a slidable arrangement of elongate apertures 162, 164 and nut-and-bolt fixings 166, 168 so that brackets 128, 130 can accommodate a variety of sizes of ladder rail.
  • Brackets 128, 130 can be positioned at any appropriate location along plate 122 in order to accommodate an appropriate width of ladder, and also to enable the pair of brackets to be placed centrally of the length of plate 112, or at one end of plate 112, or somewhere in between, as desired.
  • the ladder support is suitable for use in wide variety of situations in spite of the proximity of hazards, obstacles or obstructions on the surface against which the ladder is to be supported, by quick and easy adjustment of the relative positioning of the brackets 128, 130 on plate 122.
  • the need of a person on the ladder to stretch sideways is reduced or obviated, thereby reducing the risk of making the ladder unstable.
  • the lateral dimension of the plate is substantially greater than the width of the rails of ladder 150 thereby reducing the unit area forces of the ladder exerted on the support surface, enabling the ladder to be used in otherwise impractible situations.
  • FIG. 3 shows a ladder support 200 being a second embodiment of the invention.
  • the ladder support 200 includes two in-use vertically-spaced abutment points 216, 218.
  • the abutment points 216, 218 are separated by a distance which is sufficiently large as compared to the length of the ladder that when both abutment points 216, 218 rest on a generally vertical surface (such as a wall), the ladder (when attached) cannot be rotated about a pivot point defined by one of the abutment points 216, 218 without the separation of one of the abutment points 216, 218 from the surface being readily apparent.
  • the ladder support 200 includes a bracket arrangement 228 which engages the rails of a ladder.
  • the bracket 228 maintains the rails at the predetermined angle ⁇ with respect to a plane in which both abutment points 216, 218 lie.
  • both abutment points 216, 218 abut a generally vertical surface, the rails of the ladder are maintained at a desired angle of inclination.
  • the abutment points 216, 218 may be an integral part of a ladder.

Landscapes

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

Abstract

Support d'échelle comprenant une surface d'alignement qui, quand on la place de niveau contre un objet tel qu'un mur, assure que l'échelle tenue dans le support est maintenue dans une position angulaire prédéterminée par rapport à cet objet, dans la zone des 70° à 80° avec l'horizontale.
PCT/GB2005/004045 2004-10-21 2005-10-20 Support d'échelle WO2006043066A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0709625A GB2434174B (en) 2004-10-21 2005-10-20 A ladder support

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0423350.8A GB0423350D0 (en) 2004-10-21 2004-10-21 A ladder support
GB0423350.8 2004-10-21

Publications (1)

Publication Number Publication Date
WO2006043066A1 true WO2006043066A1 (fr) 2006-04-27

Family

ID=33484924

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2005/004045 WO2006043066A1 (fr) 2004-10-21 2005-10-20 Support d'échelle

Country Status (2)

Country Link
GB (2) GB0423350D0 (fr)
WO (1) WO2006043066A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2797037A (en) * 1953-07-06 1957-06-25 Niedojadlo Frank Mounting and supporting devices for ladders
GB2161528A (en) * 1984-07-14 1986-01-15 Duraflex Products Limited Ladder brace
US4823912A (en) * 1988-06-06 1989-04-25 Gould William E Multipurpose ladder fixture
US5117941A (en) * 1991-04-01 1992-06-02 Eugene Gruber Ladder bracket
US5855252A (en) * 1995-01-30 1999-01-05 Vrolyks; Jan William Ladder safety attachment
US20020134619A1 (en) * 2001-03-23 2002-09-26 Schwenke Donald R. Ladder stabilizing apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2797037A (en) * 1953-07-06 1957-06-25 Niedojadlo Frank Mounting and supporting devices for ladders
GB2161528A (en) * 1984-07-14 1986-01-15 Duraflex Products Limited Ladder brace
US4823912A (en) * 1988-06-06 1989-04-25 Gould William E Multipurpose ladder fixture
US5117941A (en) * 1991-04-01 1992-06-02 Eugene Gruber Ladder bracket
US5855252A (en) * 1995-01-30 1999-01-05 Vrolyks; Jan William Ladder safety attachment
US20020134619A1 (en) * 2001-03-23 2002-09-26 Schwenke Donald R. Ladder stabilizing apparatus

Also Published As

Publication number Publication date
GB2434174B (en) 2008-05-21
GB2434174A (en) 2007-07-18
GB0709625D0 (en) 2007-06-27
GB0423350D0 (en) 2004-11-24

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