EP1669538A1 - Echelle avec structure anti-glissement - Google Patents

Echelle avec structure anti-glissement Download PDF

Info

Publication number
EP1669538A1
EP1669538A1 EP05111745A EP05111745A EP1669538A1 EP 1669538 A1 EP1669538 A1 EP 1669538A1 EP 05111745 A EP05111745 A EP 05111745A EP 05111745 A EP05111745 A EP 05111745A EP 1669538 A1 EP1669538 A1 EP 1669538A1
Authority
EP
European Patent Office
Prior art keywords
ladder
supplementary
bar
arm
spring
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
EP05111745A
Other languages
German (de)
English (en)
Other versions
EP1669538B1 (fr
Inventor
Antoon Teel
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 EP1669538A1 publication Critical patent/EP1669538A1/fr
Application granted granted Critical
Publication of EP1669538B1 publication Critical patent/EP1669538B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • E06C7/423—Ladder stabilising struts

Definitions

  • the present invention relates to a ladder according to the precharacterising clause of Claim 1.
  • the aim of the present invention is to provide a ladder with which slipping is prevented in an effective manner under all circumstances.
  • the supplementary bar is fitted such that it can be moved relative to the lower end of the ladder.
  • This supplementary bar is braced against the ground concerned.
  • One (or more) supplementary arm(s) extends/extend from the supplementary bar towards the ladder, which arm functions as a strut and provides stability to the structure.
  • the supplementary arm can provide adjustment in the event of possible sinking and/or repositioning. It has been found that in this way slipping of the bottom of the stiles is effectively prevented.
  • a supplementary arm of variable length on both sides, differences in height left and right of the centrally positioned ladder are compensated, as a result of which unsafe situations are prevented.
  • the width of the supplementary bar is at least the same as the width of the ladder close to the lower end thereof.
  • the reaction bar can extend at an angle to the horizontal, but is preferably arranged essentially approximately horizontally in the use position.
  • the supplementary arm is fastened to the ladder at a distance of between 80 and 160 cm from the bottom of the ladder. This fastening is preferably effected on the outside of the stile.
  • both the supplementary arm and the supplementary bar are of adjustable length and width, respectively, in order to provide optimum adjustment to the prevailing conditions.
  • variable length of the supplementary arm that alters during use can be achieved by making this supplementary arm in two parts that can slide relative to one another and fitting a spring between them.
  • This spring is preferably made such that it drives the two parts apart, that is to say drives the supplementary arm away from the lower end of the ladder.
  • the length of the supplementary arm is adjusted by sliding the two parts relative to one another such that there is no tension or only slight tension. Thereafter locking of the parts relative to one another is established in such a way that these two parts can only telescope against the resistance of the spring.
  • this spring is automatically tensioned and continually presses the supplementary bar against the ground in an optimum manner, as a result of which a particularly stable entity is obtained.
  • the spring has a spring constant of approximately 2 - 3 N/mm. Assuming a tension of 300 N in the spring when the ladder is placed, optimum adjustment to the prevailing conditions is provided. Slightly different values can optionally be chosen if the weight of the user differs substantially from the average weight of a user.
  • the invention also relates to means for preventing shifting of a ladder, comprising a supplementary bar to which a supplementary arm and a reaction bar are fastened, wherein the free ends of both the supplementary arm and the reaction bar are made for fastening to a ladder in a pivoting manner, wherein the supplementary arm consists of two parts that can move relative to one another under the influence of spring force.
  • the fastening in a pivoting manner can in principle be any fastening known in the state of the art, but preferably comprises a ball joint at the fastening to the ladder, so that the arms can diverge sideways.
  • the supplementary arms engage on the second or third rung from the bottom. If the supplementary arm engages on a higher rung the stability of the structure will be reduced.
  • the spring concerned can be a helical spring, gas spring or the like.
  • Fig. 1 the ladder according to the present invention is indicated by 1. This is placed against an exterior wall 2.
  • the ladder has a length of approximately 7 m, but it will be understood that this length can vary depending on the structure of the ladder (extendable or non-extendable).
  • Ladder 1 consists of two opposing stiles 4, between which rungs extend.
  • a supplementary bar 10 consisting of two adjustable parts 11 and 12 that can slide relative to one another. These parts are secured in a specific position relative to one another and locked with bolt 13.
  • a supplementary arm 14 is connected to supplementary bar 10 via pivot joints 19.
  • Supplementary arm 14 also consists of two telescopic parts 15, 16.
  • Reaction bar 20 consists of parts 21 and 22, which can be secured in a position relative to one another with a pin 25. That is to say, after setting, the position of the parts 21 and 22 relative to one another no longer changes.
  • Part 21 is connected to the stile 4 via a ball joint.
  • Supplementary arm 14 is connected to the stile 4 and 3, respectively, via pivot joints 18.
  • the distance between pivot point 18 and the lower end of the ladder is between 80 and 160 cm.
  • Opposing pivot joints, such as pivot joints 18 can be connected using a threaded rod 35, shown diagrammatically. Ball joints can also be used instead of simple pivot joints.
  • a reaction bar 20 is fastened at a low level via pivot joint 27 to either side of each stile 3 and 4, respectively.
  • the reaction bar 20 consists of two telescopic parts 21, 22 that can slide relative to one another. Part 22 is connected to the supplementary arm 14 in a pivoting manner at 26.
  • the spring 23 has a spring constant between 2 and 3 N/mm.
  • the spring can be moved from a relaxed state to a tensioned state.
  • the relaxed state is shown in Fig. 3b, a bolt 17 being in contact with the free end of spring 23 without any substantial pressure.
  • the tensioned state is shown in Fig. 3a.
  • Both supplementary arms can have the same type of spring, but it is also possible to fit different springs.
  • the width of the supplementary bar 10 is set. Preferably this is as wide as possible.
  • the maximum width (B) can be 2 m or more.
  • the position of the parts relative to one another can optionally be fixed using pin 13.
  • the rearwards position of the supplementary bar 10 can also be set by mutual adjustment of the parts 21 and 22 of the reaction bar 20. This position of the parts relative to one another is then fixed by inserting pin 25.
  • pin 17 does not have to be in part 15. That is to say, part 16 can move freely relative to part 15 and when the ladder is placed the supplementary bar will drop to the ground under its own weight.
  • Pin 17 is then put into part 15 in this position, in which the free end of spring 23 is in contact with pin 17 or is situated a very small distance therefrom. The correct position can be assured by, for example, colouring the appropriate end of spring 23, by which means the position of that end can be seen through the openings in part 15.
  • reaction bar 20 and supplementary bar 10 By correctly sizing the different lengths of the supplementary arm 14, reaction bar 20 and supplementary bar 10, only a limited relative movement between part 16 and part 15 is needed. According to an advantageous embodiment the relative movement is a few centimetres, with a maximum of approximately 11 cm.
  • the structure that is intended to prevent slipping can be so made that the reaction bar 20 can easily be detached, either at pivot joint 26 or at pivot joint 27, as a result of which the supplementary arm 14 can be folded down alongside the stiles 3, 4 and thus can be provided as a compact entity for transport.
  • the height of pivot point 18 can be made adjustable.
  • the structure according to the invention can simply be removed from the ladder to enable space-saving storage.
  • the pin part of the pivot joints can remain on the ladder, whilst the eye part can be removed in a simple manner. Obviously the same applies if ball joint connections are used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ladders (AREA)
EP05111745A 2004-12-08 2005-12-06 Echelle avec structure anti-glissement Not-in-force EP1669538B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL1027692A NL1027692C2 (nl) 2004-12-08 2004-12-08 Ladder met wegglijden tegengaande constructie.

Publications (2)

Publication Number Publication Date
EP1669538A1 true EP1669538A1 (fr) 2006-06-14
EP1669538B1 EP1669538B1 (fr) 2008-06-25

Family

ID=34974665

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05111745A Not-in-force EP1669538B1 (fr) 2004-12-08 2005-12-06 Echelle avec structure anti-glissement

Country Status (4)

Country Link
EP (1) EP1669538B1 (fr)
AT (1) ATE399249T1 (fr)
DE (1) DE602005007685D1 (fr)
NL (1) NL1027692C2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2995766A1 (fr) 2014-09-11 2016-03-16 Willem Fledderus Échelle de préhension

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4130181A (en) * 1977-05-25 1978-12-19 Mccallum William J P Ladder support system
US5165501A (en) * 1991-07-25 1992-11-24 Donahey Howard E Ladder support attachment
US6053284A (en) * 1997-02-18 2000-04-25 Fountain; John W. Support frame for a ladder

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9116598U1 (de) * 1991-12-02 1993-05-27 Böhle, Christian, 3548 Arolsen Vorrichtung zum Stützen einer Teleskopleiter
DE29821356U1 (de) * 1998-11-30 1999-03-04 Laug, Horst, 49809 Lingen Stabilisierungsstützen für Bock- und Anlegeleitern

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4130181A (en) * 1977-05-25 1978-12-19 Mccallum William J P Ladder support system
US5165501A (en) * 1991-07-25 1992-11-24 Donahey Howard E Ladder support attachment
US6053284A (en) * 1997-02-18 2000-04-25 Fountain; John W. Support frame for a ladder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2995766A1 (fr) 2014-09-11 2016-03-16 Willem Fledderus Échelle de préhension

Also Published As

Publication number Publication date
NL1027692C2 (nl) 2006-06-09
EP1669538B1 (fr) 2008-06-25
ATE399249T1 (de) 2008-07-15
DE602005007685D1 (de) 2008-08-07

Similar Documents

Publication Publication Date Title
US5590739A (en) Adjustable extension stepladder
US8657070B2 (en) Ladder step attachment device
US4941547A (en) Safety featured ladder scaffolding
US5460241A (en) Ladder accessory
US6655497B1 (en) Stabilizer for ladders
US20100213007A1 (en) Ladder system
US6799660B1 (en) Step ladder device
US6779632B1 (en) Adjustable leveling stepladder
US20050139425A1 (en) Ladder stabilizer
US20070240939A1 (en) Ladder Stabilizers
US20020134619A1 (en) Ladder stabilizing apparatus
US20080029341A1 (en) Ladder stabilizing attachments
US7377360B1 (en) Ladder standoff device
US9187954B1 (en) Angle configuring stabilizing assembly for extension ladders
US5577574A (en) Adjustable stepladder
US4421206A (en) Ladder
US6408983B1 (en) Ladder stabilizing device
US7255198B1 (en) Tripod extension stepladder
EP1669538B1 (fr) Echelle avec structure anti-glissement
US20070158138A1 (en) Ladder stabiliser
CA2598594A1 (fr) Stabilisateur d'echelle
AU765707B2 (en) Ladder stile extender
US20080196973A1 (en) Ladder levelling apparatus
US5915498A (en) Ladder with nesting lateral support braces
US5226504A (en) Self adjusting ladder stabilizer

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): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

17P Request for examination filed

Effective date: 20061214

17Q First examination report despatched

Effective date: 20070117

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 602005007685

Country of ref document: DE

Date of ref document: 20080807

Kind code of ref document: P

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080625

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080625

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080625

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080625

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080625

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080925

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081025

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080625

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080625

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080625

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080625

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081006

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080925

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080625

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080625

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20090326

BERE Be: lapsed

Owner name: TEEL, ANTOON

Effective date: 20081231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20081231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080625

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20081231

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20090831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090701

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20081206

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20091222

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20081231

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20091231

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080625

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081226

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20081206

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080625

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080926

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091231

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091231

REG Reference to a national code

Ref country code: NL

Ref legal event code: V1

Effective date: 20110701

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20101206

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080625

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101206

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110701