WO2005012782A3 - Variable geometry support with parallelogram structure - Google Patents

Variable geometry support with parallelogram structure Download PDF

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Publication number
WO2005012782A3
WO2005012782A3 PCT/FR2004/002059 FR2004002059W WO2005012782A3 WO 2005012782 A3 WO2005012782 A3 WO 2005012782A3 FR 2004002059 W FR2004002059 W FR 2004002059W WO 2005012782 A3 WO2005012782 A3 WO 2005012782A3
Authority
WO
WIPO (PCT)
Prior art keywords
support
variable geometry
parallelogram structure
spaced apart
brought together
Prior art date
Application number
PCT/FR2004/002059
Other languages
French (fr)
Other versions
WO2005012782A2 (en
Inventor
Guy Doat
Original Assignee
Guy Doat
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 Guy Doat filed Critical Guy Doat
Publication of WO2005012782A2 publication Critical patent/WO2005012782A2/en
Publication of WO2005012782A3 publication Critical patent/WO2005012782A3/en

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F15/00—Boards, hoardings, pillars, or like structures for notices, placards, posters, or the like
    • G09F15/0006—Boards, hoardings, pillars, or like structures for notices, placards, posters, or the like planar structures comprising one or more panels
    • G09F15/0056—Boards, hoardings, pillars, or like structures for notices, placards, posters, or the like planar structures comprising one or more panels portable display standards
    • G09F15/0062—Boards, hoardings, pillars, or like structures for notices, placards, posters, or the like planar structures comprising one or more panels portable display standards collapsible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
    • F16M11/20—Undercarriages with or without wheels
    • F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
    • F16M11/38—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by folding, e.g. pivoting or scissors tong mechanisms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
    • F16M13/005—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles integral with the apparatus or articles to be supported
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • G03B21/58—Projection screens collapsible, e.g. foldable; of variable area
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M2200/00—Details of stands or supports
    • F16M2200/06—Arms
    • F16M2200/061—Scissors arms

Abstract

The invention concerns a variable geometry support mobile between folded and extended positions wherein the upper (70) and lower (72) ends of the support are brought together and spaced apart, respectively, comprising at least one articulated parallelogram structure (30b; 30i; 30h) including opposite upper (32b; 32i; 32h) and lower (34b; 34i; 34h) toggle joints, brought together in said folded position and spaced apart in said extended position, and opposite left (36b; 36i; 36h) and right (38b; 38i; 38h) toggle joints, spaced apart in said folded position and brought together in said extended position. The inventive support is characterized in that it comprises extending means (74b; 74i; 74h) constantly tending to bring together the left (36b; 36i; 36h) and right (38b; 38i; 38h) toggle joints.
PCT/FR2004/002059 2003-07-30 2004-07-30 Variable geometry support with parallelogram structure WO2005012782A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0309391 2003-07-30
FR0309391A FR2858389A1 (en) 2003-07-30 2003-07-30 VARIABLE GEOMETRY BRACKET WITH PARALLELOGRAM STRUCTURE

Publications (2)

Publication Number Publication Date
WO2005012782A2 WO2005012782A2 (en) 2005-02-10
WO2005012782A3 true WO2005012782A3 (en) 2005-04-21

Family

ID=34043680

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2004/002059 WO2005012782A2 (en) 2003-07-30 2004-07-30 Variable geometry support with parallelogram structure

Country Status (2)

Country Link
FR (1) FR2858389A1 (en)
WO (1) WO2005012782A2 (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB176083A (en) * 1920-11-25 1922-02-27 Archibald Turner Improvements in or relating to shock absorbing devices and resilient supporting means
US1946639A (en) * 1931-06-30 1934-02-13 Eastman Kodak Co Folding projection screen
DE651642C (en) * 1934-09-07 1937-10-16 Gunnar Sjoewall Frame for photographic cameras
US2440096A (en) * 1945-06-07 1948-04-20 Webster W Jury Extensible support
US3096059A (en) * 1961-03-22 1963-07-02 F And F Koenigkramer Company Telescoping means having indexing, braking and interlocking means
EP0175660A1 (en) * 1984-09-18 1986-03-26 TARGETTI SANKEY S.p.A. Balancing device for table lamps of articulated equipment type, with an articulated quadrilateral associated to an elastic element acting along a diagonal
EP0984321A1 (en) * 1998-08-20 2000-03-08 Izumi-Cosmo Co., Ltd. Portable projection screen assembly
WO2002009080A1 (en) * 2000-09-25 2002-01-31 Marc Bric Intressenter Ab Information presentation device
FR2821965A1 (en) * 2001-03-08 2002-09-13 Guy Doat Variable advertising display panel has flexible display web on roller with rib to retain elastic torsion spring inside it

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB176083A (en) * 1920-11-25 1922-02-27 Archibald Turner Improvements in or relating to shock absorbing devices and resilient supporting means
US1946639A (en) * 1931-06-30 1934-02-13 Eastman Kodak Co Folding projection screen
DE651642C (en) * 1934-09-07 1937-10-16 Gunnar Sjoewall Frame for photographic cameras
US2440096A (en) * 1945-06-07 1948-04-20 Webster W Jury Extensible support
US3096059A (en) * 1961-03-22 1963-07-02 F And F Koenigkramer Company Telescoping means having indexing, braking and interlocking means
EP0175660A1 (en) * 1984-09-18 1986-03-26 TARGETTI SANKEY S.p.A. Balancing device for table lamps of articulated equipment type, with an articulated quadrilateral associated to an elastic element acting along a diagonal
EP0984321A1 (en) * 1998-08-20 2000-03-08 Izumi-Cosmo Co., Ltd. Portable projection screen assembly
WO2002009080A1 (en) * 2000-09-25 2002-01-31 Marc Bric Intressenter Ab Information presentation device
FR2821965A1 (en) * 2001-03-08 2002-09-13 Guy Doat Variable advertising display panel has flexible display web on roller with rib to retain elastic torsion spring inside it

Also Published As

Publication number Publication date
WO2005012782A2 (en) 2005-02-10
FR2858389A1 (en) 2005-02-04

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