EP1975368A2 - Echelle pliable destinée à la descente dans des puits d'ascenseur - Google Patents

Echelle pliable destinée à la descente dans des puits d'ascenseur Download PDF

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Publication number
EP1975368A2
EP1975368A2 EP08003881A EP08003881A EP1975368A2 EP 1975368 A2 EP1975368 A2 EP 1975368A2 EP 08003881 A EP08003881 A EP 08003881A EP 08003881 A EP08003881 A EP 08003881A EP 1975368 A2 EP1975368 A2 EP 1975368A2
Authority
EP
European Patent Office
Prior art keywords
ladder
legs
side rails
profile
pits according
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
EP08003881A
Other languages
German (de)
English (en)
Other versions
EP1975368A3 (fr
EP1975368B1 (fr
Inventor
Georg Wallraff
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.)
W+w Aufzugkomponenten U Co KG GmbH
Original Assignee
W+w Aufzugkomponenten U Co KG GmbH
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 W+w Aufzugkomponenten U Co KG GmbH filed Critical W+w Aufzugkomponenten U Co KG GmbH
Priority to PL08003881T priority Critical patent/PL1975368T3/pl
Priority to EP14000502.6A priority patent/EP2740880B1/fr
Publication of EP1975368A2 publication Critical patent/EP1975368A2/fr
Publication of EP1975368A3 publication Critical patent/EP1975368A3/fr
Application granted granted Critical
Publication of EP1975368B1 publication Critical patent/EP1975368B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C1/00Ladders in general
    • E06C1/02Ladders in general with rigid longitudinal member or members
    • E06C1/38Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
    • E06C1/383Foldable ladders in which the longitudinal members are brought together on folding
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C7/00Component parts, supporting parts, or accessories
    • E06C7/08Special construction of longitudinal members, or rungs or other treads
    • E06C7/082Connections between rungs or treads and longitudinal members
    • E06C7/084Rungs comprising projecting tabs or flanges
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C7/00Component parts, supporting parts, or accessories
    • E06C7/18Devices for preventing persons from falling
    • E06C7/188Accessories for temporary stabilising a ladder, e.g. temporary attaching devices
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C7/00Component parts, supporting parts, or accessories
    • E06C7/48Ladder heads; Supports for heads of ladders for resting against objects

Definitions

  • the invention has for its object to make the ladder so that their space requirement is further reduced in the folded state.
  • the invention provides that the legs of the stages in the folded ladder state not receiving side member are shorter than the legs of the steps receiving side rail, whereby the space required for the folded ladder in dependence on the degree of shortening of these legs is further reduced. It should be noted that in elevator shaft pits only a very small storage space is available, so that even slight changes in the space required for the folded ladder are advantageous.
  • the U-profile legs of the steps are inclined at an equal angle with respect to the U-profile base surface forming the step tread surface, and that the articulation points of the steps on the side rails in the area adjacent to the front step side U-profile legs of the steps have a smaller distance from the U-profile base surface than the articulation points in the area adjacent to the rear step side U-profile legs.
  • the inclination of the U-profile legs of the steps relative to the U-profile base surface is thus at an assumed angle of the guide against a wall surface of about 70 ° also 70 °.
  • the adjoining the front step side U-profile legs preferably have a lower height than the rear U-profile legs.
  • the problem arises that the tread surface protrudes one step when folding into the space of the longitudinal axis of the next higher level.
  • Another problem is the not insignificant finger-shear hazard when unfolding the ladder between the step and the top-down pivoting ladder stile.
  • the application and securing device fits universally on shaft access with different pit depth, a sufficient number of pilot holes are present in the ladder beams.
  • the device is mounted here in the course of installation at the appropriate location. Alternatively, it is also possible to attach an additional rail to the spars, with which the application or suspension device can be adjusted continuously.
  • the Anlegeblech is movably connected to both spars and folds out together with the steps.
  • An Anlegeblech with locking pin prevents both a lateral slipping, as well as a Nachhinten fallen.
  • This variant is universally suitable for all types of door thresholds, also for example for revolving doors, which have no guide groove in the door sill.
  • the locking of the Ladder at the exit point takes place here through a hole in the Anlegeblech and a second hole in the door sill. It is also advantageous that the introduction of the hole in the door threshold determines the subsequent installation position, so that for example the door frame can be defined by the user as a handle.
  • Hooks These are hung in the slot of manhole sliding door thresholds.
  • An optional enhancement is to make the hooks retractable. As a result, the required space in the storage position is reduced again.
  • Fold-in hanging plate The attachment plate is movably connected to both bars and folds out together with the steps.
  • the in the FIGS. 1 to 3 shown ladder has two side rails 1, 2 in the form of U-profiles. At the two side rails 1, 2 stages 3 are hinged such that the side rails 1, 2 by pivoting about the pivot axes between the steps and the side rails relative to each other towards or away from each other adjustable, ie collapsible or be unfolded.
  • the legs 1.1 of the side member 1 have a lower height than the legs 2.1 of the second side member 2.
  • one of the two side rails 1, 2 is preferably in the upper spar portion a hole 12, preferably in the form of a normal keyhole, for attaching the folded ladder to a arranged in the shaft wall hook to be mounted.
  • the levels 3 are according to FIG. 9 the shape of U-profiles with respect to the base surface 3.1 at an angle ⁇ parallel to each other obliquely presented legs 3.2 and 3.3 respectively.
  • the angle ⁇ has a corresponding value in accordance with, for example, an angle of inclination ⁇ of the conductors against a support surface or the like in the range of about 70 ° in order to obtain a nearly horizontal tread surface when the conductor is in the shaft;
  • the step depth determining width a 1 of the U-profile base 3.1 is of the order of about 80 mm;
  • the height c 1 of the leg 3.2 is for example about 18 mm and the height b 1 of the leg 3.3 is for example about 44 mm.
  • the dimensions of the side rails 1, 2 forming U-profiles are adapted to the dimensions of the stages, such that the stages taking into account their own dimensions and the position of the pivot points on the side rails in particular in the side rail 2 with respect to the legs 1.1 of Side bars 1 higher U-profile legs 2.1 are collapsible.
  • As articulation points in the area of the side rails 1, 2 are bores 6 in the U-profile legs of the two side rails. These bores 6 essentially define the articulation points of the steps 3 on the side rails 1, 2.
  • the U-profile legs 3.1 and 3.3 are provided with holes 5 (diameter eg 8 mm).
  • the articulation points 5 in the region of the U-profile legs 3.2 adjacent to the front step side have a smaller distance from the step tread area 3.1 than the articulation points 5 in the region of the U-profile legs 3.3 adjoining the rear step side in order to adjust the inclination of the U-profile legs 3.2; 3.3 to allow the unfolding or folding of the ladder.
  • hinge pin 7 For articulating the level 3 on the side rails 1, 2 either relatively short hinge pin 7 or a continuous hinge axis 7.1 may be provided.
  • the steps 3 are each at the ends of the U-profile base, ie the tread surface 3.1 and the U-profile leg 3.3 with partly intermeshing recesses 3.11, 3.12; 3.31; 3.32 provided.
  • the assumed or required conductor-Anlegewinkel and the local position of the through holes 5; 6 certain position of the hinge pin 7 or hinge axes 7.1 is when folding the ladder has the problem that the tread surface of a stage in the space of the next higher level and in the space of the hinge axis thereof protrudes.
  • recesses are mainly in the area of the ends of the U-profiles forming the steps.
  • a compromise must be made, taking into account that the recesses are on the one hand large enough to fold the ladder and off the finger-shear hazard, and on the other hand, not endanger the stability of the individual stages by excessively large recesses or impaired.
  • the recesses provided in the U-profile forming the steps 3 have, for example, the following dimensions: (1) At the U-profile leg 3.3 adjacent recess 3.11 in the base area 3.1: Length in profile longitudinal direction - a 4 about 40 - 45 mm Depth perpendicular to the profile longitudinal direction - a 5 about 30 - 32 mm (2) Recess 3.12: Length in profile longitudinal direction - b 4 about 20 mm Depth perpendicular to the profile longitudinal direction Bevel in the middle area - a 2 + a 3 about 50 mm with possible (3) Recess 3.31 in the leg 3.3: Length in profile longitudinal direction - b 5 about 40 - 45 mm Depth from inner leg side perpendicular to the profile longitudinal direction - b 6 about 25 mm (4) Cut 3.32: Length in thigh longitudinal direction - b 4 about 20 mm Depth perpendicular to the leg longitudinal direction - b 2 about 12 mm.
  • the material thickness of the step profile is preferably on the order of about 2-3 mm.
  • the material thickness of the side rail profiles 1, 2 is preferably on the order of about 2-3 mm.
  • FIG. 5 shows a securing device which is formed by a substantially L-shaped angle section 4, whose one leg is articulated with its ends to the side rails 1.2 and the second leg is directed away from the side rails 1.2 backwards, wherein the free Longitudinal side of the second leg a downward angled fuse strip 4.1 connects.
  • FIG. 6 is in the second leg a bore 4.2 for inserting a preferably attached to the angle profile locking pin 8 is attached.
  • the securing device is formed at least by a hinged to a side rail folding hook 4 ', wherein according to FIG. 8 a rail 9 provided with a guide groove 9 for the folding hook 4 'is mounted. According to FIG. 7 is provided on the folding hook 4 'of a guide stop 10 to ensure the securing position of the folding hook 4'.
  • the difference of 20 mm results from the distance of the hole in the locking plate and the distance to the locking plate-laying leg.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ladders (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
EP08003881.3A 2007-03-28 2008-03-03 Echelle pliable destinée à la descente dans des puits d'ascenseur Active EP1975368B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL08003881T PL1975368T3 (pl) 2007-03-28 2008-03-03 Drabina składana o płaskich szczeblach do schodzenia w szybach dźwigowych
EP14000502.6A EP2740880B1 (fr) 2007-03-28 2008-03-03 Echelle pliable destinée à la descente dans des puits d'ascenseur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007014826A DE102007014826B3 (de) 2007-03-28 2007-03-28 Zusammenklappbare Stufen-Anlegeleiter zum Abstieg in Aufzugschachtgruben

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP14000502.6A Division EP2740880B1 (fr) 2007-03-28 2008-03-03 Echelle pliable destinée à la descente dans des puits d'ascenseur
EP14000502.6A Division-Into EP2740880B1 (fr) 2007-03-28 2008-03-03 Echelle pliable destinée à la descente dans des puits d'ascenseur

Publications (3)

Publication Number Publication Date
EP1975368A2 true EP1975368A2 (fr) 2008-10-01
EP1975368A3 EP1975368A3 (fr) 2012-10-31
EP1975368B1 EP1975368B1 (fr) 2014-10-15

Family

ID=39529605

Family Applications (2)

Application Number Title Priority Date Filing Date
EP14000502.6A Active EP2740880B1 (fr) 2007-03-28 2008-03-03 Echelle pliable destinée à la descente dans des puits d'ascenseur
EP08003881.3A Active EP1975368B1 (fr) 2007-03-28 2008-03-03 Echelle pliable destinée à la descente dans des puits d'ascenseur

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP14000502.6A Active EP2740880B1 (fr) 2007-03-28 2008-03-03 Echelle pliable destinée à la descente dans des puits d'ascenseur

Country Status (4)

Country Link
EP (2) EP2740880B1 (fr)
DE (1) DE102007014826B3 (fr)
ES (2) ES2585577T3 (fr)
PL (1) PL1975368T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108756717A (zh) * 2018-06-15 2018-11-06 佛山科学技术学院 一种具有加固接力器的折叠梯

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD966556S1 (en) 2019-12-13 2022-10-11 Murphy Ladder Llc Ladder

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS594000U (ja) 1982-06-30 1984-01-11 四国化成工業株式会社 折り畳み自在梯子
EP1749966A2 (fr) 2005-08-02 2007-02-07 Laddaloc Pty Ltd Echelle pliable

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1165588A (en) * 1915-05-25 1915-12-28 Lee O Garraway Folding step-ladder.
AU7905575A (en) * 1974-03-14 1976-09-16 Hickman Designs Ltd Ladder
DE2902993A1 (de) * 1978-02-06 1979-08-09 Primerano Verbesserung bei den leitern
FR2563566B1 (fr) * 1984-04-25 1987-06-26 Stoltz Gerard Escabeau repliable
JPS6152494A (ja) * 1984-08-22 1986-03-15 山崎産業株式会社 脚立
JPS62160099U (fr) * 1986-04-01 1987-10-12
US4998982A (en) * 1988-12-16 1991-03-12 Arnold William F Metal ladder construction with reinforced side rails
CN2068576U (zh) * 1990-05-29 1991-01-02 刘振毅 家用折叠式梯子
FR2725971A1 (fr) * 1994-10-06 1996-04-26 Hognon Sa Dispositif d'acces au fonds de cuvette des ascenseurs
US6536558B2 (en) 2001-02-16 2003-03-25 Harold E. Price Folding ladder
DE102004030897A1 (de) * 2004-06-25 2006-11-23 Stingl Systems Gmbh Leiter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS594000U (ja) 1982-06-30 1984-01-11 四国化成工業株式会社 折り畳み自在梯子
EP1749966A2 (fr) 2005-08-02 2007-02-07 Laddaloc Pty Ltd Echelle pliable

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108756717A (zh) * 2018-06-15 2018-11-06 佛山科学技术学院 一种具有加固接力器的折叠梯

Also Published As

Publication number Publication date
EP2740880A1 (fr) 2014-06-11
EP1975368A3 (fr) 2012-10-31
PL1975368T3 (pl) 2015-03-31
EP2740880B1 (fr) 2016-05-04
EP1975368B1 (fr) 2014-10-15
DE102007014826B3 (de) 2008-12-18
ES2585577T3 (es) 2016-10-06
ES2524874T3 (es) 2014-12-15

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