EP0352598A1 - Echelle double - Google Patents

Echelle double Download PDF

Info

Publication number
EP0352598A1
EP0352598A1 EP89113121A EP89113121A EP0352598A1 EP 0352598 A1 EP0352598 A1 EP 0352598A1 EP 89113121 A EP89113121 A EP 89113121A EP 89113121 A EP89113121 A EP 89113121A EP 0352598 A1 EP0352598 A1 EP 0352598A1
Authority
EP
European Patent Office
Prior art keywords
end wall
ladder
feet
support section
section
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
EP89113121A
Other languages
German (de)
English (en)
Other versions
EP0352598B1 (fr
Inventor
Christian Gross
Christof Petri
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.)
Hailo Werk Rudolf Loh GmbH and Co KG
Original Assignee
Hailo Werk Rudolf Loh GmbH and Co KG
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 Hailo Werk Rudolf Loh GmbH and Co KG filed Critical Hailo Werk Rudolf Loh GmbH and Co KG
Priority to AT89113121T priority Critical patent/ATE69859T1/de
Publication of EP0352598A1 publication Critical patent/EP0352598A1/fr
Application granted granted Critical
Publication of EP0352598B1 publication Critical patent/EP0352598B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E06C7/46—Non-skid equipment

Definitions

  • the invention relates to a stepladder with pairs of spars having ladder parts, in which the non-slip feet with spars having support surfaces in the folded state of the stepladder used as a single ladder are supported on the floor and the standing surfaces are in a common plane.
  • step ladders of the type mentioned at the outset such as are described in DE 36 31 673 A1
  • the feet lie in the folded state of the ladder on the floor and a common straight line running in the floor plane, which runs parallel to the pivot axis of the pairs of bars.
  • the step ladder can also be used as a single ladder without putting additional strain on the joint.
  • the use of the double rung ladder as a single ladder regularly presupposes that each foot has at least two different bases.
  • the invention has for its object to develop the generic stepladder without undue constructive effort so that the feet rest on the floor with the same support or standing surfaces, regardless of the working position of the ladder.
  • the object is achieved in that the lying on the floor, extending in the direction of the pivot axis of the pairs of spars and with respect to the pivot axis opposite end portions of the facing end faces of the feet are spaced from each other that the feet have the facing end faces Have end walls of the same height, and that each end wall is articulated to a support section having the support surface, which includes an angle with the end wall in the unloaded state of the ladder that is greater than the maximum angle of inclination of the conductor parts, and that the end wall and the support section by means of a spring body are connected, which strives to keep the angle between the end wall and the support portion large.
  • the invention is achieved in any case if the feet are designed such that the lower end sections of the mutually facing end faces define a straight line in the folded state of the double rung ladder, which runs parallel to the pivot axis of the pairs of bars and which (ideally) is identical with the joint axes of the individual feet.
  • the articulation axis of each foot lies in the line of intersection of the support surface and the surface of the face of the respective foot.
  • an expedient embodiment of the invention provides that the foot consists of a holding section which can be connected to the spar, the end wall and the support section which is articulated on the end wall. It is advantageous if the foot is formed in one piece and consists of a solid material, the holding section and the end wall being rigidly connected to one another. In order to ensure that the support section follows the pivoting movements of the pairs of bars, it is expedient if the space defined by the holding section, the end wall and the support section is provided with an elastically deformable material, e.g. Rubber that is filled. This material guarantees that the support section is in pressure connection with the floor, the pressure being evenly distributed.
  • an elastically deformable material e.g. Rubber that is filled. This material guarantees that the support section is in pressure connection with the floor, the pressure being evenly distributed.
  • the spring body is filled with an elastically deformable material.
  • the object on which the invention is based can also be achieved in such a way that the end walls are formed from an elastically deformable material, so that the height of the end walls can be changed.
  • the end walls 60, 61, 62, 63, 64 and 65 can be connected in an articulated manner to a support section 70 to 75 each having the support surfaces, which in the unloaded state of the conductor encloses an angle with the associated end wall 60 to 65 which is usually greater than 115 ° is.
  • the feet shown in FIGS. 1 and 2 and made of hard rubber or plastic consist of holding sections 90 and 91, the end walls 60 and 61 and the support sections 70 and 71.
  • the support sections 70 and 71 are articulated with the associated end walls 60 and 61 connected.
  • the interior of the feet is partially covered with an elastically deformable material 98, e.g. Rubber, filled. This material presses the support section 70 or 71 away from the holding section 90 or 91.
  • the support sections 70 and 71 lie snugly on the floor, regardless of whether the ladder is used as a contact or double rung ladder.
  • the support sections 70 and 71 are provided with knobs, so that a non-slip connection to the floor is guaranteed.
  • the end walls 60 and 61 consist of a rigid and unbreakable material.
  • end walls 62 and 63 are concave and consist of a material which is partially elastically deformable (Fig. 4), so that the differences in length resulting from the inclination between the support bars can be compensated.
  • 5 and 6 feet are shown, which are integrally formed and made of a solid material, wherein the holding portions 92 and 93 and the end walls 64 and 65 are rigidly connected to each other.
  • the spaces defined by the holding sections 92 and 93, the end walls 64 and 65 and the support sections 74 and 75 are filled with an elastically deformable material 98.
  • the peculiarity of this embodiment of the invention is that the end walls 64 and 65 are connected to the associated support sections 74 and 75 by means of a spring body 80 and 81 which is circular in cross-section.
  • the spring bodies 80 and 81 extend in the direction of the pivot axis of the pairs of spars, are arranged in the interior of the feet 22 and 24 and each have a longitudinal slot 99 and 100, which determines the distance between the support sections 74 and 75 from the end walls 64 and 65.
  • spring bodies 80 and 81 Another property of the spring bodies 80 and 81 is that the support sections 74 and 75 are not only pivotable, but also (slightly) adjustable in the direction of the bars. This takes into account the fact that the lower end portions of the end walls 64 and 65 do not end in ideal lines.
  • the spring bodies 80 and 81 are filled with an elastically deformable material.
  • spring bodies 80 and 81 Another property of the spring bodies 80 and 81 is that they not only ensure that the support sections 74 and 75 can be pivotably connected to the end walls 64 and 65, but also ensure that the support sections 74 and 75 are always in pressure connection with the floor 9 stand. This is also supported by the material 98, which strives to keep the angle between the support sections 74 and 75 and the end walls 64 and 65 to a maximum. This ensures that the double rung ladder can be supported on all support sections at the same time, regardless of whether it is used in the expanded or collapsed state.
  • the feet shown in FIGS. 5 and 6 can be made of extruded and steel sections and filled with elastic material. The same properties can also be obtained if an impact-resistant and hard plastic is used.
  • each foot has only a single footprint, which rests fully on the floor, so that the pressure of the spars is relatively small.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ladders (AREA)
  • Stringed Musical Instruments (AREA)
  • Electrophonic Musical Instruments (AREA)
EP89113121A 1988-07-26 1989-07-18 Echelle double Expired - Lifetime EP0352598B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89113121T ATE69859T1 (de) 1988-07-26 1989-07-18 Stehleiter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3825299 1988-07-26
DE3825299A DE3825299A1 (de) 1988-07-26 1988-07-26 Doppelsprossenleiter

Publications (2)

Publication Number Publication Date
EP0352598A1 true EP0352598A1 (fr) 1990-01-31
EP0352598B1 EP0352598B1 (fr) 1991-11-27

Family

ID=6359539

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89113121A Expired - Lifetime EP0352598B1 (fr) 1988-07-26 1989-07-18 Echelle double

Country Status (4)

Country Link
EP (1) EP0352598B1 (fr)
AT (1) ATE69859T1 (fr)
DE (2) DE3825299A1 (fr)
ES (1) ES2027435T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1367213A1 (fr) * 2002-05-30 2003-12-03 Etablissements Sklop Pied d'échelle articulé

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2297961B1 (es) * 2004-11-12 2009-07-20 Escaleras Escalibur,S.L. Accesorios estabilizadores de escaleras portatiles.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2230406A (en) * 1938-10-10 1941-02-04 Conrad B Johnson Antislip device
GB876471A (en) * 1959-04-28 1961-09-06 United Carr Fastener Corp Improvements in and relating to supports for furniture and the like
US3127953A (en) * 1960-02-17 1964-04-07 Shore Charles Safety ladder
EP0005690A2 (fr) * 1978-05-23 1979-11-28 Gilbert Loix Echelle double extensible ou à appui
DE3631673A1 (de) * 1986-09-18 1988-04-07 Loh Kg Hailo Werk Doppelsprossenleiter

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1679122A1 (de) * 1967-02-08 1971-05-06 Werner Co Inc R D Ausziehbare Leiter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2230406A (en) * 1938-10-10 1941-02-04 Conrad B Johnson Antislip device
GB876471A (en) * 1959-04-28 1961-09-06 United Carr Fastener Corp Improvements in and relating to supports for furniture and the like
US3127953A (en) * 1960-02-17 1964-04-07 Shore Charles Safety ladder
EP0005690A2 (fr) * 1978-05-23 1979-11-28 Gilbert Loix Echelle double extensible ou à appui
DE3631673A1 (de) * 1986-09-18 1988-04-07 Loh Kg Hailo Werk Doppelsprossenleiter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1367213A1 (fr) * 2002-05-30 2003-12-03 Etablissements Sklop Pied d'échelle articulé
FR2840349A1 (fr) * 2002-05-30 2003-12-05 Sklop Ets Pied d'echelle articule

Also Published As

Publication number Publication date
ES2027435T3 (es) 1992-06-01
DE3825299A1 (de) 1990-02-01
DE3825299C2 (fr) 1992-04-23
ATE69859T1 (de) 1991-12-15
EP0352598B1 (fr) 1991-11-27
DE58900495D1 (de) 1992-01-09

Similar Documents

Publication Publication Date Title
WO1981002322A1 (fr) Echelle
EP0360049A1 (fr) Plate-forme pour échelle
EP0352598B1 (fr) Echelle double
DE60003932T2 (de) Leiterholmverlängerung
DE19644010B4 (de) Fördervorrichtung
DE8809514U1 (de) Doppelsprossenleiter
DE3029683A1 (de) Mehrzweckleiter
DE3016264A1 (de) Stehleiter
DE3204174C2 (de) Leiter
DE2649430B2 (de) Faltleiter
WO1996028319A1 (fr) Support pour triangles d'avertissement
DE3842302C2 (fr)
DE8025544U1 (de) Bockleiter
DE3910327C2 (fr)
DE2536329B2 (de) Ablage für Arbeitsgeräte an Metallleitern
DE19822350B4 (de) Leiter
WO1996020329A1 (fr) Piece d'appui pour echelle
DE3825300C2 (fr)
AT403309B (de) Stehleiter
WO2005005224A2 (fr) Luge pliante
DE19641621A1 (de) Scherengitterkorpus für Schubladenelement
DE4007052A1 (de) Abschlusselement fuer fuesse
DE8701700U1 (de) Leiter
DE10104407A1 (de) Klapptritt
DE102017115996A1 (de) Kippsicherung für Leitern

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 CH DE ES FR GB IT LI

17P Request for examination filed

Effective date: 19891222

17Q First examination report despatched

Effective date: 19901228

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE ES FR GB IT LI

REF Corresponds to:

Ref document number: 69859

Country of ref document: AT

Date of ref document: 19911215

Kind code of ref document: T

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REF Corresponds to:

Ref document number: 58900495

Country of ref document: DE

Date of ref document: 19920109

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2027435

Country of ref document: ES

Kind code of ref document: T3

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

Ref country code: GB

Payment date: 19930817

Year of fee payment: 5

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

Ref country code: ES

Payment date: 19940607

Year of fee payment: 6

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

Ref country code: GB

Effective date: 19940718

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

Ref country code: CH

Payment date: 19941026

Year of fee payment: 6

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

Effective date: 19940718

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

Ref country code: ES

Free format text: LAPSE BECAUSE OF THE APPLICANT RENOUNCES

Effective date: 19950719

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

Ref country code: LI

Effective date: 19950731

Ref country code: CH

Effective date: 19950731

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: FR

Payment date: 19960701

Year of fee payment: 8

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: 19980331

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

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

Ref country code: DE

Payment date: 19980804

Year of fee payment: 10

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

Ref country code: AT

Payment date: 19990614

Year of fee payment: 11

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 19991007

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: 20000503

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

Ref country code: AT

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

Effective date: 20000718

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 NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050718