EP0558394A1 - Befestigungseinrichtung für Leiterzubehör - Google Patents

Befestigungseinrichtung für Leiterzubehör Download PDF

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Publication number
EP0558394A1
EP0558394A1 EP93400451A EP93400451A EP0558394A1 EP 0558394 A1 EP0558394 A1 EP 0558394A1 EP 93400451 A EP93400451 A EP 93400451A EP 93400451 A EP93400451 A EP 93400451A EP 0558394 A1 EP0558394 A1 EP 0558394A1
Authority
EP
European Patent Office
Prior art keywords
upright
ladder
accessories
slide
ladders
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
EP93400451A
Other languages
English (en)
French (fr)
Other versions
EP0558394B1 (de
Inventor
Bernard Grange
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.)
Tubesca SA France
Original Assignee
Tubesca SA France
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 Tubesca SA France filed Critical Tubesca SA France
Publication of EP0558394A1 publication Critical patent/EP0558394A1/de
Application granted granted Critical
Publication of EP0558394B1 publication Critical patent/EP0558394B1/de
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
    • E06C1/00—Ladders in general
    • E06C1/02—Ladders in general with rigid longitudinal member or members
    • E06C1/04—Ladders for resting against objects, e.g. walls poles, trees
    • E06C1/08—Ladders for resting against objects, e.g. walls poles, trees multi-part
    • E06C1/10—Sections fitted end to end
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/08—Special construction of longitudinal members, or rungs or other treads

Definitions

  • the invention relates to a device for fixing accessories on a ladder.
  • the accessories to be fixed on the ladders are well known. They consist, for example, of parts of hooks, of slides, of articulation ... used for the coupling of ladders or of tool or object support for the user.
  • the accessory parts are generally fixed to the ladder uprights directly by screwing, riveting, welding on the upright or by fitting in the end of the uprights or even threading on the rung.
  • the object of the invention is to provide a fixing of the ladder accessories which is rigid and which can be carried out at a variable and adjustable height of the ladder by the user.
  • a device for attaching accessories to a ladder characterized in that it involves at least one slide element fixed longitudinally on a ladder upright, and various accessories for ladders shaped to slide by their base on said slide element, said accessories being able to be fixed at the desired height of use on said slide element by conventional mechanical fixing means, optionally unlockable, such as a retractable stop engaged in a catch of the upright, a welding point, a local deformation, the installation of a screw, a rivet etc.
  • Standard accessories can therefore be used with the various ranges of ladders fitted with the fixing device according to the invention.
  • the accessory fixing device advantageously involves two slide elements per upright, these elements being the height of the uprights and arranged opposite on the uprights, respectively on the upper and lower faces of the upright relative to the user .
  • the sliding elements can have a profile with two opposite external wings.
  • the external face of the profile can have a rounded configuration favorable to gripping the ladder.
  • these slide profiles have symmetry with respect to a median longitudinal plane.
  • This arrangement also contributes to improving the rigidity of the fitted ladders.
  • the sliding elements will be mounted on the short sides of the rectangle, respectively forming the upper and lower faces of the upright relative to the user. .
  • slide elements can be obtained from manufacturing with the upright, for example by molding, extrusion of material or the like.
  • the invention also relates to the scales obtained and the corresponding suitable accessories.
  • FIG. 1 represents a ladder upright 1 according to the invention and a corresponding accessory shown partially and intended to be mounted on this ladder. Only the attachment base 5 of the accessory to the upright has been shown, the upper part 7 shown partially corresponding to the conventional functional part of the accessory.
  • This part may consist, for example, of a ladder slide element (Figure 2), hinge or pad attachment ( Figure 3), a transformable ladder end element (Figure 4), an element hook (engaged on the rungs) (figure 5) or in a stop element for hanging objects (figure 6) etc ...
  • the ladder according to the invention comprises two identical uprights 1 obtained from aluminum alloy extrusion (only one of which is shown). These uprights are connected by rungs or bars 9.
  • the uprights are of generally rectangular section.
  • the opposite small sides of the rectangle are each shaped with two longitudinally profiled outer wings 11 whose upper edge 13 is rounded and whose inner surface 15 (horizontal) is flat, these wings defining a slide profile for the accessories whose base 5 is hollowed out in a complementary manner and with little play.
  • the assembly is formed symmetrically with respect to a vertical longitudinal median plane of the upright (mixed line). The accessory is therefore received sliding with little play by the profile of the upright, on its height and with the possibility of mounting on a small side or the other of the upright.
  • the accessory is mounted on its slide from the end of the upright on the short side of the desired upright and then moved slidingly on the upright to the desired height of use. Then, it is fixed in position at this height by a conventional fixing means, such as a screw applied to the middle part of the base of the accessory (FIG. 4) or to its vertical lateral part (FIG. 3) and in taken in the amount.
  • a conventional fixing means such as a screw applied to the middle part of the base of the accessory (FIG. 4) or to its vertical lateral part (FIG. 3) and in taken in the amount.
  • FIG. 7 shows an example of a longitudinal coupling of two simple scales according to the invention. These scales were joined end to end by four identical pieces of sleeves 17 (FIGS. 9a, 9b) threaded over part of the profiled uprights of the scales. These sleeve parts are each shaped with two opposite sliding grooves 19 provided to cooperate with the sliding wings on the two short sides of the upright. They are locked in position on the uprights using conventional fasteners, such as screws 21 fixed laterally to the uprights or a deformation of local material forming a displacement stop for the sleeve over the length of the uprights.
  • conventional fasteners such as screws 21 fixed laterally to the uprights or a deformation of local material forming a displacement stop for the sleeve over the length of the uprights.
  • sleeve pieces can also be shaped with a certain length, without being limited by the location of the rungs as in conventional sleeves, so that they are able to withstand the rigidity necessary for the middle part of the assembly. of the two coupled scales, especially when the scales are long.
  • a foot 23 (Figures 10a, 10b) to adapt to the elevation of the terrain is mounted at the bottom of the lower ladder.
  • the classic feet are mounted on an intermediate support fixed to the upright.
  • the foot being shaped according to a profile capable of sliding on the wings of the upright, this intermediate support piece is unnecessary.
  • the height adjustment can be carried out by stopping the sliding foot at a desired coarse height, for example by tightening a side wheel 25 engaged on preformed holes at regular intervals on the upright then by actuating an end screw jack 27 to obtain a fine adjustment.
  • FIG. 8 A V-shaped coupling of simple ladders according to the invention is shown in FIG. 8. This coupling is carried out using articulation accessories 29 (FIG. 11a and 11b) fixed to the upper ends of the sliding elements of the uprights.
  • ladder and spacer arm 31 connected substantially to the middle part of the scales.
  • Side legs 33 are further mounted at the bottom of one of the scales to improve the stability of the coupling.
  • the spacer arms 31 are fixed to the uprights by jaw-shaped parts identical to the articulation accessories and mounted and fixed at a fixed height on the inner slide element of the ladder uprights.
  • the lateral stability feet 33 can be adjusted on site by adjusting the sliding of the support jaws integral with the sliding elements at the bottom of the uprights of the ladder concerned.
  • a work or support plan 35 has been mounted on one of the scales.
  • This plan will also be fixed to the uprights by means of jaws received on one or both of the opposite sliding elements of the uprights. These jaws can slide on the uprights to adapt to the desired height of the plane and be fixed in position by an automatic clamping means on the wings of the profiles of the upright.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ladders (AREA)
  • Programmable Controllers (AREA)
  • Steps, Ramps, And Handrails (AREA)
EP93400451A 1992-02-27 1993-02-22 Befestigungseinrichtung für Leiterzubehör Expired - Lifetime EP0558394B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9202287A FR2688025B1 (fr) 1992-02-27 1992-02-27 Dispositif de fixation d'accessoires pour echelles.
FR9202287 1992-02-27

Publications (2)

Publication Number Publication Date
EP0558394A1 true EP0558394A1 (de) 1993-09-01
EP0558394B1 EP0558394B1 (de) 1996-07-17

Family

ID=9427096

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93400451A Expired - Lifetime EP0558394B1 (de) 1992-02-27 1993-02-22 Befestigungseinrichtung für Leiterzubehör

Country Status (7)

Country Link
EP (1) EP0558394B1 (de)
AT (1) ATE140511T1 (de)
DE (1) DE69303637T2 (de)
DK (1) DK0558394T3 (de)
ES (1) ES2090899T3 (de)
FR (1) FR2688025B1 (de)
GR (1) GR3020579T3 (de)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3856112A (en) * 1971-08-31 1974-12-24 A Stewart Safety accessories for ladders
DE2626425A1 (de) * 1976-06-12 1977-12-22 Brucklacher Fa Fritz Sicherheitsvorrichtung zur sicherung einer person beim auf- und absteigen an einer leiter
US4085818A (en) * 1976-05-20 1978-04-25 Swager William E Plastic ladder and safety device
US4269284A (en) * 1978-09-25 1981-05-26 Swager William E Sliding clamp and adaptor
DE3431146A1 (de) * 1984-08-24 1986-03-06 Karl 4400 Münster Kemper Treppenleiter mit fallsicherung
GB2181477A (en) * 1985-10-11 1987-04-23 Joseph Dunmore Ladder platform
FR2606649A1 (fr) * 1986-11-18 1988-05-20 Froment Sa Chariot pour l'assujettissement d'un harnais de securite

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3856112A (en) * 1971-08-31 1974-12-24 A Stewart Safety accessories for ladders
US4085818A (en) * 1976-05-20 1978-04-25 Swager William E Plastic ladder and safety device
DE2626425A1 (de) * 1976-06-12 1977-12-22 Brucklacher Fa Fritz Sicherheitsvorrichtung zur sicherung einer person beim auf- und absteigen an einer leiter
US4269284A (en) * 1978-09-25 1981-05-26 Swager William E Sliding clamp and adaptor
DE3431146A1 (de) * 1984-08-24 1986-03-06 Karl 4400 Münster Kemper Treppenleiter mit fallsicherung
GB2181477A (en) * 1985-10-11 1987-04-23 Joseph Dunmore Ladder platform
FR2606649A1 (fr) * 1986-11-18 1988-05-20 Froment Sa Chariot pour l'assujettissement d'un harnais de securite

Also Published As

Publication number Publication date
ATE140511T1 (de) 1996-08-15
DE69303637D1 (de) 1996-08-22
GR3020579T3 (en) 1996-10-31
ES2090899T3 (es) 1996-10-16
FR2688025B1 (fr) 1998-11-20
DE69303637T2 (de) 1996-12-19
DK0558394T3 (da) 1996-08-19
EP0558394B1 (de) 1996-07-17
FR2688025A1 (fr) 1993-09-03

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