EP0160600A2 - Zusammenklappbare Trittleiter - Google Patents
Zusammenklappbare Trittleiter Download PDFInfo
- Publication number
- EP0160600A2 EP0160600A2 EP85400661A EP85400661A EP0160600A2 EP 0160600 A2 EP0160600 A2 EP 0160600A2 EP 85400661 A EP85400661 A EP 85400661A EP 85400661 A EP85400661 A EP 85400661A EP 0160600 A2 EP0160600 A2 EP 0160600A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- uprights
- upright
- main
- auxiliary
- articulated
- 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
Links
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
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
- E06C1/38—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
- E06C1/383—Foldable ladders in which the longitudinal members are brought together on folding
- E06C1/3835—Foldable ladders in which the longitudinal members are brought together on folding having collapsible steps comprising a hinge in their central part
Definitions
- the present invention relates to a foldable stepladder.
- the object of the present invention is to remedy these drawbacks.
- the auxiliary uprights are articulated at one of their ends at the top of the main uprights and they are articulated together around an axis in their middle part to present in the deployed service position the shape of a cross, said auxiliary uprights being connected from said point of mutual articulation to the central upright by a link.
- the opening of the stepladder is total and simultaneous during the opening of the auxiliary uprights by spreading the main uprights.
- the stability is excellent the rear auxiliary uprights forming a three-branch triangulation with the spacer rod.
- stepladder Since the stepladder does not require any locking, its opening and closing can be carried out in a single maneuver.
- a stepladder according to the invention which comprises two main uprights 1 and 2, a central upright 3 and steps in two parts 4 and 5 which are each pivoted, of a part, on the main uprights around axes 6, 7, respectively perpendicular to the plane of the uprights main 1, 2 and in fact generally horizontal, on the other hand, on the central upright around axes 8, parallel to said axes 6 and 7,
- the steps 4, 5 have in cross section a trapezoidal shape with a flat support part.
- auxiliary uprights 14, 15 which rest on the ground by their other end 16, 17, said auxiliary uprights being articulated together in their middle part around an axis 18 to present in the deployed service position (Fig. 2) the shape of a cross.
- the auxiliary uprights 14, 15 are connected from the articulation axis 18 by a link 19 to the central upright 3.
- one of the ends of the link-19 is articulated around an axis 20 mounted on a yoke 21 itself articulated on the axis 18 of connection of the auxiliary uprights 14, 15, at its other end the link 19 is articulated on an axis 23 engaged on the central upright 3.
- auxiliary uprights 14, 15 (FIG. 4, 5) on the upper part of the main uprights 1, 2 is carried out by means of hinges 24, 25.
- Each hinge such as 24 has an axis 26 and two branches 27, 28 which are articulated respectively around an axis 29 on the main upright 1, 2 and around an axis 30 on the auxiliary upright 14, 15.
- the axis 26 of the hinge 24, 25 is perpendicular to the axes 29 and 30 of articulation on the main upright 1, 2 and on the auxiliary upright 14, 15.
- a cross member 32 is hinged around an axis 31 (Fig. 1, 2, 3) consisting of a U-shaped profile, the other end of which is removably attached to the upright 2 by means of a pin 33 connected to said upright by a chain 34.
- the cross member 32 constitutes a gutter capable of supporting small objects and it reinforces the rigidity of the stepladder.
- the device according to the invention operates in the following manner.
- stepladder When the stepladder is in the folded position as shown in FIG. 1, it suffices to move the main uprights 1, 2 laterally apart from one another so that the two parts 4, 5 of the steps occupy a horizontal position service and that the two arms of the compass 11, 12 abut by their top against the central upright 3.
- the spacer rod 19 with the auxiliary uprights 14, 15 form a triangulation with three branches which ensures excellent stability of the stepladder.
Landscapes
- Ladders (AREA)
- Air Bags (AREA)
- Table Devices Or Equipment (AREA)
- Gloves (AREA)
- Pens And Brushes (AREA)
- Cartons (AREA)
- Food-Manufacturing Devices (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT85400661T ATE37739T1 (de) | 1984-04-25 | 1985-04-03 | Zusammenklappbare trittleiter. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8406489A FR2563566B1 (fr) | 1984-04-25 | 1984-04-25 | Escabeau repliable |
FR8406489 | 1984-04-25 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0160600A2 true EP0160600A2 (de) | 1985-11-06 |
EP0160600A3 EP0160600A3 (en) | 1986-07-23 |
EP0160600B1 EP0160600B1 (de) | 1988-10-05 |
Family
ID=9303464
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP85400661A Expired EP0160600B1 (de) | 1984-04-25 | 1985-04-03 | Zusammenklappbare Trittleiter |
Country Status (10)
Country | Link |
---|---|
US (1) | US4569419A (de) |
EP (1) | EP0160600B1 (de) |
JP (1) | JPS60242288A (de) |
AT (1) | ATE37739T1 (de) |
CA (1) | CA1215951A (de) |
DE (1) | DE3565419D1 (de) |
ES (1) | ES295824Y (de) |
FR (1) | FR2563566B1 (de) |
HU (1) | HU192208B (de) |
ZA (1) | ZA852826B (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1975368A3 (de) * | 2007-03-28 | 2012-10-31 | W+W Aufzugkomponenten GmbH u. Co. KG | Zusammenklappbare Stufen-Anlegeleiter zum Abstieg in Aufzugschachtgruben |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4947962A (en) * | 1989-08-21 | 1990-08-14 | Helsper Steve M | Adjustable scaffold support |
EP0677639A1 (de) * | 1994-03-29 | 1995-10-18 | Bruce Norman Unwin Simson | Automatische Verriegelungsvorrichtung für Leitern oder für tragbare seitlich Zusammenlegbare Leitern |
WO2003014516A1 (en) | 2001-08-10 | 2003-02-20 | Ghost Manufacturing Incorporated | Collapsible step ladder and carrying case |
US6866119B2 (en) * | 2003-02-11 | 2005-03-15 | Edward Zheng | Ladder with side support enhancement |
US8365865B2 (en) | 2009-03-03 | 2013-02-05 | Wing Enterprises, Inc. | Adjustable ladders and related methods |
ES2377615B1 (es) * | 2010-04-15 | 2012-12-04 | Ajm Santos, S.L.L. | Escalera plegable. |
WO2012033948A1 (en) | 2010-09-08 | 2012-03-15 | Lock N Climb, Llc | Collapsible safe ladder |
CN105121772B (zh) * | 2013-01-24 | 2017-05-17 | 伟英企业有限公司 | 可调梯子和相关组件 |
USD734500S1 (en) | 2013-09-09 | 2015-07-14 | Lock N Climb, Llc | Ladder towing apparatus |
USD733931S1 (en) | 2013-09-09 | 2015-07-07 | Lock N Climb, Llc | Ladder towing apparatus |
USD745191S1 (en) | 2014-05-27 | 2015-12-08 | Lock N Climb, Llc | Ladder |
US10100575B1 (en) | 2016-02-19 | 2018-10-16 | Blue Moon Designs, LLC | Folding ladder with brace-locking apparatus |
US20190383098A1 (en) * | 2018-06-14 | 2019-12-19 | Shou-I Sun | Horizontally extendable ladder |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR568061A (fr) * | 1923-06-29 | 1924-03-14 | échelle pliante | |
FR773924A (de) * | 1934-11-27 | |||
GB763742A (en) * | 1954-05-17 | 1956-12-19 | Cyril Harcourt Matthews | Improvements in or relating to step ladders |
FR1247207A (fr) * | 1959-10-21 | 1960-11-25 | échelle à éléments repliables les uns sur les autres | |
US3901354A (en) * | 1974-07-05 | 1975-08-26 | Alex J Grebausky | Stepladder stabilizer |
FR2401302A1 (fr) * | 1974-03-14 | 1979-03-23 | Hickman Designs Ltd | Echelle pliante |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US419821A (en) * | 1890-01-21 | Neau burrows | ||
US958732A (en) * | 1908-03-06 | 1910-05-24 | Dennis Novelty Ladder Company | Ladder. |
US1054108A (en) * | 1912-05-16 | 1913-02-25 | Lee O Garraway | Folding step-ladder. |
US1108896A (en) * | 1913-12-01 | 1914-09-01 | Lee Ozer Garraway | Folding step-ladder. |
US1337361A (en) * | 1919-07-02 | 1920-04-20 | Kasper Stanley | Convertible ladder and bench |
US1783686A (en) * | 1928-03-17 | 1930-12-02 | Samuel F Williams | Folding ladder |
US2184486A (en) * | 1936-03-31 | 1939-12-26 | Chew William | Stepladder, trestle, and the like |
US3084760A (en) * | 1960-01-18 | 1963-04-09 | Lamberti Battista | Stepladder with folding elements |
-
1984
- 1984-04-25 FR FR8406489A patent/FR2563566B1/fr not_active Expired
-
1985
- 1985-04-03 AT AT85400661T patent/ATE37739T1/de not_active IP Right Cessation
- 1985-04-03 EP EP85400661A patent/EP0160600B1/de not_active Expired
- 1985-04-03 DE DE8585400661T patent/DE3565419D1/de not_active Expired
- 1985-04-12 ES ES1985295824U patent/ES295824Y/es not_active Expired
- 1985-04-16 ZA ZA852826A patent/ZA852826B/xx unknown
- 1985-04-22 HU HU851544A patent/HU192208B/hu unknown
- 1985-04-23 JP JP60087358A patent/JPS60242288A/ja active Pending
- 1985-04-24 CA CA000480010A patent/CA1215951A/en not_active Expired
- 1985-04-24 US US06/726,623 patent/US4569419A/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR773924A (de) * | 1934-11-27 | |||
FR568061A (fr) * | 1923-06-29 | 1924-03-14 | échelle pliante | |
GB763742A (en) * | 1954-05-17 | 1956-12-19 | Cyril Harcourt Matthews | Improvements in or relating to step ladders |
FR1247207A (fr) * | 1959-10-21 | 1960-11-25 | échelle à éléments repliables les uns sur les autres | |
FR2401302A1 (fr) * | 1974-03-14 | 1979-03-23 | Hickman Designs Ltd | Echelle pliante |
US3901354A (en) * | 1974-07-05 | 1975-08-26 | Alex J Grebausky | Stepladder stabilizer |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1975368A3 (de) * | 2007-03-28 | 2012-10-31 | W+W Aufzugkomponenten GmbH u. Co. KG | Zusammenklappbare Stufen-Anlegeleiter zum Abstieg in Aufzugschachtgruben |
EP2740880A1 (de) * | 2007-03-28 | 2014-06-11 | W+W Aufzugkomponenten GmbH u. Co. KG | Zusammenklappbare Stufen-Anlegeleiter für Aufzugschachtgruben |
Also Published As
Publication number | Publication date |
---|---|
JPS60242288A (ja) | 1985-12-02 |
EP0160600A3 (en) | 1986-07-23 |
HUT39494A (en) | 1986-09-29 |
ES295824U (es) | 1987-06-16 |
ZA852826B (en) | 1985-12-24 |
EP0160600B1 (de) | 1988-10-05 |
FR2563566A1 (fr) | 1985-10-31 |
DE3565419D1 (en) | 1988-11-10 |
US4569419A (en) | 1986-02-11 |
CA1215951A (en) | 1986-12-30 |
ES295824Y (es) | 1987-12-16 |
ATE37739T1 (de) | 1988-10-15 |
HU192208B (en) | 1987-05-28 |
FR2563566B1 (fr) | 1987-06-26 |
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