EP2995766A1 - Griffleiter - Google Patents

Griffleiter Download PDF

Info

Publication number
EP2995766A1
EP2995766A1 EP15020156.4A EP15020156A EP2995766A1 EP 2995766 A1 EP2995766 A1 EP 2995766A1 EP 15020156 A EP15020156 A EP 15020156A EP 2995766 A1 EP2995766 A1 EP 2995766A1
Authority
EP
European Patent Office
Prior art keywords
ladder
feet
main plane
support surface
foregoing
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Withdrawn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
EP15020156.4A
Other languages
English (en)
French (fr)
Inventor
Willem Fledderus
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 EP2995766A1 publication Critical patent/EP2995766A1/de
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/42—Ladder feet; Supports therefor
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/42—Ladder feet; Supports therefor
    • E06C7/46—Non-skid equipment

Definitions

  • the invention relates to a ladder which is set obliquely against a wall or other object.
  • the invention also relates to the use of a ladder on a sloping roof or other object.
  • hooks which engage the ground only when the ladder is already slipping (see BE1018435 and GB632311 ).
  • the invention often also still has to be adjusted or mounted on site when the ladder is used.
  • the ladder also has to be placed exactly at the correct angle, which can be difficult in practice.
  • Solutions which function only when the ladder is already slipping away offer less security and safety and do not work properly, for instance when the ground surface is very slippery.
  • the rubber mat is effective, but is also rather inconvenient to use.
  • the invention described hereinbelow consists of a ladder (1) with two extra-long elements (referred to below as ladder feet) with which the ladder rests on the ground and which, instead of being located directly under the ladder, are attached asymmetrically at the bottom of the ladder, wherein these ladder feet (3) are located with the support surface substantially transversely of the main plane of the ladder on the side of the ladder with which the ladder is placed against an object, i.e. they protrude on the side where the ladder normally speaking makes the smallest angle with the ground surface (see fig. 1 a) .
  • Support surface (2) is thus situated here at a distance (x) from the main plane (1) of the ladder (see fig. 1 b) .
  • the ladder Even if it has a tendency to slip somewhat, for instance on smooth surfaces, the ladder will not easily slide any further; it will then in fact have to be elevated slightly counter to its own weight because of the position of the feet.
  • the feet may be secured to the lower horizontal element of the ladder which runs parallel to the rungs ( fig. 1,2 and 4 ) or, in the case of other ladders, secured to the two stiles. ( fig. 3 ).
  • the advantage is a simple and reliable construction integrated into the ladder, wherein the ladder can be placed immediately with no additional supplementary support surfaces as is the case in known ladders, and wherein the ladder is immediately safeguarded in any position of the ladder because, in contrast to known ladders with supplementary support surfaces, the whole weight of the ladder and a possible load, say at least 80% of the weight, is wholly supported from the start by the support surfaces of said ladder feet which form part of the ladder itself.
  • the invention can also be embodied by applying for instance a U-shaped lower horizontal element of the ladder, wherein the outer ends protrude further to the rear (object side) and to which outer ends ladder feet are attached, wherein the ladder feet are thus disposed at said distance from the main plane of the ladder so that the same effect is also obtained (see fig. 4 ).
  • the ladder base can also be widened by partially sliding two additional parts (1 and 2) out of the lower horizontal element, which parts are also provided with said ladder feet and can be secured by locks (3) (see fig. 5 ).
  • said ladder feet can also serve as a safeguard by having them rest on a horizontal element of the roof, for instance on a tile lath, after the tiles have been pushed slightly upward, or in a gutter (see fig. 6 ).
  • the part resting on the horizontal part of the roof must here lie substantially transversely of the main plane of the ladder and be of sufficient length; in the prototype the outer ends of the ladder feet were located 15 cm from the centre of the ladder, although another dimension is also possible.
  • the ladder feet themselves can also be made pivotable, whereby they protrude less during transport and storage.
  • fig. 7 Also possible is an embodiment of the ladder according to the invention according to fig. 7 wherein the lower horizontal element of the ladder, optionally provided with ladder feet, is connected pivotally to the ladder (1) so that it can be located at a distance from the main plane of the ladder ( fig. 7a ), but can also pivot back into the main plane of the ladder ( fig. 7b ).
  • the advantage hereof is that when it is folded in line with the ladder, there are no protruding parts at all on the ladder.
  • the effect here is basically that the lower part of the ladder folds backwards.
  • the angle (y) through which the lower horizontal element can pivot may vary, wherein the most ideal angle seems to be about 20 or 25 degrees so that the ladder does not tend to tilt toward the user when he/she sets foot on the lowest rung.
  • the hinge piece (3) of the invention can for instance be embodied as a bent piece of sheet with a thickness of 2 to 3 mm.
  • This hinge piece is attached to the lower rung for instance by means of a long bolt M12 (5) therethrough.
  • the lower, already existing or new horizontal element (2) can be mounted on hinge piece (3) by means of two bolts, for instance M6 (6).
  • strips (4) can for instance be used of 1.5 or 2 mm thickness, which can slide on the outer side through the stiles (in the case of I-profile stiles) or along the stiles of the ladder.
  • Both strips are pulled downward by a spring and bounded by a slotted hole through which the long bolt M12 passes.
  • pivoting part (3) By pulling the strips slightly upward the pivoting part (3) is unlocked and can be moved into a different position.
  • the two parts 3 and 4 can be made of steel or aluminum sheet which only needs bending and no further welding work, which can be a great advantage in respect of production costs.
  • Part 3 is bounded when pivoting to the rear in that it comes up against the stiles of the ladder.
  • the ladder does in fact come a little off the ground here, so that the weight rests only on the horizontal element and so the ladder is immediately secured against slipping.
  • the support surface can be pivoted toward the main plane of the ladder so that the ladder can be used in normal position, wherein horizontal element 2 is pivoted to a position just below the ladder stiles and the invention is locked.
  • the invention does not in fact take up any extra space because the other parts of the (extendable) ladder can slide in between both sides of the hinge part.
  • the invention can be made from steel, aluminum, plastic or other material. Owing to its simplicity the invention will not break easily and thus provides optimal safety.
  • the invention can be applied in all its embodiments to existing as well as new ladders.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ladders (AREA)
EP15020156.4A 2014-09-11 2015-09-10 Griffleiter Withdrawn EP2995766A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1040946 2014-09-11
NL1041405 2015-07-21

Publications (1)

Publication Number Publication Date
EP2995766A1 true EP2995766A1 (de) 2016-03-16

Family

ID=54359694

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15020156.4A Withdrawn EP2995766A1 (de) 2014-09-11 2015-09-10 Griffleiter

Country Status (1)

Country Link
EP (1) EP2995766A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2564255A (en) * 2017-05-31 2019-01-09 Rojak Design Ltd Ladder stabiliser

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB632311A (en) 1947-01-13 1949-11-21 Sidney Victor Lester Improvements relating to ladders
US3083788A (en) * 1961-11-24 1963-04-02 Bauer Mfg Company Ladder leveling apparatus
GB2216168A (en) 1988-02-18 1989-10-04 Barrie Weatherall Ladder stabiliser
US20050092551A1 (en) * 2003-10-31 2005-05-05 Caldwell Mark J. Ladder safe base and method for utilization thereof
EP1669538A1 (de) 2004-12-08 2006-06-14 Antoon Teel Leiter mit Rutschverhinderungsstruktur
BE1018435A3 (nl) 2007-06-04 2010-11-09 Missotten Marc Ladderbeveiliging.
GB2489328A (en) 2011-03-22 2012-09-26 Easi Dec Access Systems Ltd Ladder with selectively actuable roof ridge hook

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB632311A (en) 1947-01-13 1949-11-21 Sidney Victor Lester Improvements relating to ladders
US3083788A (en) * 1961-11-24 1963-04-02 Bauer Mfg Company Ladder leveling apparatus
GB2216168A (en) 1988-02-18 1989-10-04 Barrie Weatherall Ladder stabiliser
US20050092551A1 (en) * 2003-10-31 2005-05-05 Caldwell Mark J. Ladder safe base and method for utilization thereof
EP1669538A1 (de) 2004-12-08 2006-06-14 Antoon Teel Leiter mit Rutschverhinderungsstruktur
BE1018435A3 (nl) 2007-06-04 2010-11-09 Missotten Marc Ladderbeveiliging.
GB2489328A (en) 2011-03-22 2012-09-26 Easi Dec Access Systems Ltd Ladder with selectively actuable roof ridge hook

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2564255A (en) * 2017-05-31 2019-01-09 Rojak Design Ltd Ladder stabiliser
GB2564255B (en) * 2017-05-31 2023-01-25 Rojak Design Ltd Ladder stabiliser

Similar Documents

Publication Publication Date Title
US9404305B1 (en) Portable and adaptable platform
US8464833B2 (en) Adjustable hang ladder with fall arresting and cushioning arrangement
US11180956B2 (en) Ladder docking device
US9551182B2 (en) Ladder security bracket and safety system
US5941343A (en) Ladder safety accessory
US20070240935A1 (en) Ladder step attachment device
US8215452B2 (en) Extendable ladder for trailer, motor home, or other vehicle
US20190264451A1 (en) Standing seam mounting brackets
EP2757212A1 (de) Vorrichtung zur Montage eines Sicherheitsgeländers auf einer Schalung für Bodenplatten
WO2015142992A1 (en) Ladders with integrated support
US6994188B2 (en) Ladder support attachment
EP2995766A1 (de) Griffleiter
US232556A (en) Scaffold
US20200224437A1 (en) Latchable scaffold planks
US20140027605A1 (en) Ladder support
AU2002249004A1 (en) Ladder support bracket
US20080230316A1 (en) Self-adjusting ladder leveling device
US20090014240A1 (en) Ladder support
CA3175641A1 (en) Ladder guard
US20160108628A1 (en) Aluminum roof scaffolding plank
JP4641871B2 (ja) 屋根工事用足場
JP2012087524A (ja) 梯子アタッチメント
AU2015215915B2 (en) Securing Device for a Ladder
US20070267251A1 (en) Safety Device for a Ladder
US20050284698A1 (en) Ladder support

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20160917