FR2450935A1 - Multi-purpose inter-connectable ladder section - has rung spacing to allow fitting of still ends for fixing by sprung bolts in matching apertures - Google Patents

Multi-purpose inter-connectable ladder section - has rung spacing to allow fitting of still ends for fixing by sprung bolts in matching apertures

Info

Publication number
FR2450935A1
FR2450935A1 FR7907212A FR7907212A FR2450935A1 FR 2450935 A1 FR2450935 A1 FR 2450935A1 FR 7907212 A FR7907212 A FR 7907212A FR 7907212 A FR7907212 A FR 7907212A FR 2450935 A1 FR2450935 A1 FR 2450935A1
Authority
FR
France
Prior art keywords
bolts
sprung
longerons
connectable
fixing
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
FR7907212A
Other languages
French (fr)
Other versions
FR2450935B1 (en
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
Priority to FR7907212A priority Critical patent/FR2450935A1/en
Publication of FR2450935A1 publication Critical patent/FR2450935A1/en
Application granted granted Critical
Publication of FR2450935B1 publication Critical patent/FR2450935B1/fr
Granted legal-status Critical Current

Links

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
    • E06C1/14—Ladders capable of standing by themselves
    • E06C1/16—Ladders capable of standing by themselves with hinged struts which rest on the ground
    • E06C1/20—Ladders capable of standing by themselves with hinged struts which rest on the ground with supporting struts formed as poles
    • E06C1/22—Ladders capable of standing by themselves with hinged struts which rest on the ground with supporting struts formed as poles with extensible, e.g. telescopic, ladder parts or struts
    • 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
    • E06C1/04—Ladders for resting against objects, e.g. walls poles, trees
    • E06C1/08—Ladders for resting against objects, e.g. walls poles, trees multi-part
    • E06C1/10—Sections fitted end to end

Landscapes

  • Ladders (AREA)

Abstract

The ladder sections (B) have sprung bolts (1, 2) and staple holes (3, 4) for connection one to the other to form extended ladders, 'A' frame step ladders or scaffolding frameworks. It has sections (A, B) of which the overall distance between longerons (6 or 7) permits one section (A) end to fit inside the other (B). The ends of the longerons (6) of the penetrating section (A) have sprung knob actuated bolts (1, 2) which enter staple holes (3, 4) in the counter longerons (7). Lined bores for staple holes and bolt location may be sited adjacent to the first rung and the longeron end, and the bolts may be of a spring piston type with a bayonet fastener maintaining the retracted state. Sockets (5) between rungs may make provision for intermediate non-aligned connections.
FR7907212A 1979-03-08 1979-03-08 Multi-purpose inter-connectable ladder section - has rung spacing to allow fitting of still ends for fixing by sprung bolts in matching apertures Granted FR2450935A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7907212A FR2450935A1 (en) 1979-03-08 1979-03-08 Multi-purpose inter-connectable ladder section - has rung spacing to allow fitting of still ends for fixing by sprung bolts in matching apertures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7907212A FR2450935A1 (en) 1979-03-08 1979-03-08 Multi-purpose inter-connectable ladder section - has rung spacing to allow fitting of still ends for fixing by sprung bolts in matching apertures

Publications (2)

Publication Number Publication Date
FR2450935A1 true FR2450935A1 (en) 1980-10-03
FR2450935B1 FR2450935B1 (en) 1982-11-19

Family

ID=9223418

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7907212A Granted FR2450935A1 (en) 1979-03-08 1979-03-08 Multi-purpose inter-connectable ladder section - has rung spacing to allow fitting of still ends for fixing by sprung bolts in matching apertures

Country Status (1)

Country Link
FR (1) FR2450935A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4403001A1 (en) * 1993-02-01 1994-08-04 Ryu Hoi Kwan Device for adjusting height of collapsible ladder
GB2614764A (en) * 2022-04-04 2023-07-19 Henchman Ltd Ladder

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190900447A (en) * 1908-01-07 1909-03-25 Philipp Esch Improvements in Ladders, Trestles and the like.
US1491642A (en) * 1922-10-27 1924-04-22 Swain Roy Ladder
GB337587A (en) * 1929-10-23 1930-11-06 Thomas Edwin Mansfield Improvements in or relating to safety ladders for roofing, scaffolding, trestles, and extending ladders
DE516711C (en) * 1929-04-24 1931-01-27 Franz Baumeister Two-part ladder convertible into a stepladder
US2372003A (en) * 1943-07-21 1945-03-20 Raymond A Kennedy Sectional ladder
DE2409821A1 (en) * 1974-03-01 1975-09-18 Walter Kuemmerlin Sectional longitudinally adjustable ladder - has overlapping rung treads for improving stability

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190900447A (en) * 1908-01-07 1909-03-25 Philipp Esch Improvements in Ladders, Trestles and the like.
US1491642A (en) * 1922-10-27 1924-04-22 Swain Roy Ladder
DE516711C (en) * 1929-04-24 1931-01-27 Franz Baumeister Two-part ladder convertible into a stepladder
GB337587A (en) * 1929-10-23 1930-11-06 Thomas Edwin Mansfield Improvements in or relating to safety ladders for roofing, scaffolding, trestles, and extending ladders
US2372003A (en) * 1943-07-21 1945-03-20 Raymond A Kennedy Sectional ladder
DE2409821A1 (en) * 1974-03-01 1975-09-18 Walter Kuemmerlin Sectional longitudinally adjustable ladder - has overlapping rung treads for improving stability

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4403001A1 (en) * 1993-02-01 1994-08-04 Ryu Hoi Kwan Device for adjusting height of collapsible ladder
GB2614764A (en) * 2022-04-04 2023-07-19 Henchman Ltd Ladder

Also Published As

Publication number Publication date
FR2450935B1 (en) 1982-11-19

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Legal Events

Date Code Title Description
ST Notification of lapse