EP0256837A2 - Ensemble d'ossature pliante - Google Patents

Ensemble d'ossature pliante Download PDF

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Publication number
EP0256837A2
EP0256837A2 EP87307090A EP87307090A EP0256837A2 EP 0256837 A2 EP0256837 A2 EP 0256837A2 EP 87307090 A EP87307090 A EP 87307090A EP 87307090 A EP87307090 A EP 87307090A EP 0256837 A2 EP0256837 A2 EP 0256837A2
Authority
EP
European Patent Office
Prior art keywords
members
plane
foldable
side frames
hinged
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.)
Withdrawn
Application number
EP87307090A
Other languages
German (de)
English (en)
Other versions
EP0256837A3 (fr
Inventor
Christopher John Jacobs
Beverley Dee Jacobs
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 EP0256837A2 publication Critical patent/EP0256837A2/fr
Publication of EP0256837A3 publication Critical patent/EP0256837A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C4/00—Foldable, collapsible or dismountable chairs
    • A47C4/28—Folding chairs with flexible coverings for the seat or back elements
    • A47C4/286—Folding chairs with flexible coverings for the seat or back elements foldable side to side and front to back, e.g. umbrella type
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C4/00—Foldable, collapsible or dismountable chairs
    • A47C4/02—Dismountable chairs

Definitions

  • This invention relates to a foldable frame assembly, and more particularly to a foldable seat and foldable chair incorporating such assembly.
  • An object of the present invention is to provide a chair which is foldable in two directions simultaneously, so that it can be reduced to a minimum size for storage and carrying.
  • the present invention accordingly provides a foldable frame assembly, comprising a pair of complementary X-shaped side frames each having two bar members hinged together intermediate their ends to permit folding and unfolding in the plane of the X, the two side frames being mutually parallel and in register with each other; and a pair of centrally hinged transverse X-frame support stays, each having two substantially straight stay members hinged together at their mid points to permit folding and unfolding in the plane of the X which is perpendicular to the plane of the side frames, an end of each stay member being hinged to an end of a side frame bar member so as to permit pivoting both in the plane of the stay members and in the plane of the respective bar members, whereby folding and unfolding of the side frames causes simultaneous and corresponding folding and unfolding of the support stays.
  • the foldable frame defined above can be adapted to form the basis for a foldable seat or a foldable chair by incorporating detachable cross-members with a flexible seat material supported between them.
  • the invention provides a foldable seat, comprising a foldable frame as defined above, a pair of cross-members detachably supportable each between a respective pair of upper ends of the side frame bar members, and a flexible seat material supported by and extendible between said cross-members.
  • the invention provides a foldable chair, comprising a foldable frame as defined above, a pair of upper extension members respectively hinged to an upper end of a side frame bar member and to the upper end of the complementary side frame bar member, said upper extension members being pivotable in the respective planes of the side frames; a pair of brace members hinged at their lower ends to the respective lower ends of the side frame bar members below the hinge points of the upper extension members, and at their upper ends respectively to the upper extension members intermediate the ends of the latter; latch means for detachable locking of at least one of the side frames in an unfolded position; a first cross-member detachably supportable between the upper ends of the upper extension members; a second cross-member detachably supportable between the free upper ends of the side frame bar members; and a flexible seat material supported by and extendible between the first and second cross-members.
  • the foldable chair incorporates a foldable frame assembly comprising two X-shaped side frames hingedly interconnected with two sets of transverse X-frame support stays.
  • the first side frame has two rigid bar members 1 and 2 which are hinged together at a point 3 halfway along to form a X-shape. Hinging about the point 3 permits the bar members 1 and 2 to be folded and unfolded in the plane of the X.
  • the second side frame is parallel and in register with the first, and comprises corresponding components 1 ⁇ , 2 ⁇ and 3 ⁇ .
  • a pair of centrally hinged transverse X-frame support stays are provided.
  • the first of these links the upper ends of the bar members 1 and 1 ⁇ respectively with the lower ends of the bar members 2 and 2 ⁇ .
  • this stay assembly comprises a substantially straight stay member 4 linking the upper end of the bar member 1 to the lower end of the bar member 2 ⁇ , and a substantially straight stay member 5 linking the lower end of the bar member 2 to the upper end of the bar member 1 ⁇ .
  • the stay members 4 and 5 are hinged together at their midpoints 6 to form an X shape and to permit folding and unfolding of the stay members in the plane of this X, which is perpendicular to the plane of the side frames.
  • Each end of the stay members 4 and 5 is hinged by a two-way hinge (see Figure 2) to the end of the respective side frame bar member so as to permit pivoting at such hinge point both in the plane of the stay members and in the plane of the respective bar members.
  • a complementary second set of stay members is provided to link points close to the end of the top of the bar member 2 ⁇ to the proximity of the lower end of the bar member 1, and similarly from near the top of the bar member 2 to the proximity of the lower end of the bar member 1 ⁇ .
  • This second set of stay members is designated by the numerals 4 ⁇ , 5 ⁇ and 6 ⁇ , and are hinged to each other and to the respective ends of the side frame bar members in a similar way to the stay members 4 and 5.
  • FIG. 2 An example of the two-way hinge is shown in Figure 2, the side frame bar member 2 ⁇ being of tubular metal in this case.
  • the hinge is formed by a right-angled plate metal bracket 20.
  • One limb of the bracket is hinged by a rivet 21 to the member 2 ⁇ to permit turning according to arrow A.
  • the other limb of the bracket is hinged by a rivet 22 to the member 5 ⁇ to permit turning according to arrow B.
  • the turning planes of arrows A and B are at right angles to each other.
  • the foldable frame assembly thus far described can be adapted to form the basis for a foldable seat.
  • a first cross-member is detachably supported between the upper ends of the side frame bar members 1 and 1 ⁇
  • a second cross-member is detachably supported between the upper ends. of the side frame bar members 2 and 2 ⁇ .
  • a flexible seat material can then be supported by and extended between the two cross-members.
  • the two cross-members are detached from the frame assembly and are rolled up together with the flexible seat material.
  • the frame assembly itself can then be folded up as described above.
  • the folded seat thus comprises two folded components whi together form a compact package.
  • the basic frame assembly already described is extended by further members to form a foldable chair having characteristics somewhat similar to a deckchair, except for a substantially increased extent of folding.
  • a pair of upper extension members 7 and 7 ⁇ is hinged at the lower ends respectively to the upper ends of the side frame bar members 2 and 2 ⁇ .
  • the upper extension members are thus pivotable in the planes of the respective side frames.
  • Two brace members 8 and 8 ⁇ are hinged at their lower ends to the respective lower ends of the side frame bar members 1 and 1 ⁇ approximately beneath the hinge points of the upper extension members 7 and 7 ⁇ respectively.
  • the brace members 8 and 8 ⁇ are hinged at their upper ends respectively to the upper extension members 7 and 7 ⁇ intermediate the ends of the latter.
  • Two adjustable latches 9 and 9 ⁇ are respectively hinged intermediate the ends of the brace members 8 and 8 ⁇ , and can engage respectively with latching points 10 and 10 ⁇ where the respective upper extension member is hinged to the respective side frame bar member.
  • latching means When the latching means are in engagement, both of the side frames are locked in an unfolded position as shown in Figure 1.
  • the upper extension members and brace members are also correspondingly locked.
  • a plurality of latching points is provided on the latches 9 and 9 ⁇ so that the chair can be locked in a variety of positions with the upper extension members at various angles.
  • Assembly of the chair is completed by detachably supporting a first cross-member 11 between the upper ends of the upper extension members 7 and 7 ⁇ . Slots 12 and 12 ⁇ are provided at the upper ends of the upper extension members, and the first cross-member 11 is dimensioned so as to fit into these slots.
  • a second cross-member 13 can fit into corresponding slots 14 and 14 ⁇ at the free upper ends of the side frame bar members 1 and 1 ⁇ .
  • a flexible seat material 15 is supported by and extendible between the first and second cross-members 11 and 13.
  • the cross-members 11 and 13 are first detached from the corresponding slots, and the seat material can then be rolled up around the two cross-members to form a compact package as shown on the left in Figure 6.
  • the latches 9 and 9 ⁇ are first disengaged from the latch points 10 and 10 ⁇ , and the upper ends of the extension members 7 and 7 ⁇ are pulled back in the directions shown by the arrows.
  • An intermediate position is shown in Figure 5, and it will be noted that the lower angle formed between each upper extension member and the corresponding side train bar member linked thereto has changed from a reflex angle (as in Figure 1) to an acute angle (as in Figure 5). Folding of the chair frame is then completed until it is complete, and the folded frame forms a compact package as shown on the righthand side in Figure 6.
  • the side frame members and upper extension members are made of wood, whilst the support stay assemblies, the brace members and the latches are made of plate material.
  • Alternative materials such as metal tubing, e.g. aluminium, and plastics materials are of course possible.
  • the cross-members 11 and 13 right-angle turns at their ends for fitting into the upper ends of the upper extension members 7 and 7 ⁇ and the side frame bar members 1 and 1 ⁇ , respectively, which do not in this case have the slots 12, 12 ⁇ , 14 and 14 ⁇ .
  • the seat material can be made of canvas, but synthetic materials or any kind of flexible construction are also possible.
  • the foldable frame assembly is also suitable for other purposes, e.g. as the base for a table, a baby carriage etc.

Landscapes

  • Special Chairs (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
EP87307090A 1986-08-18 1987-08-11 Ensemble d'ossature pliante Withdrawn EP0256837A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB868620083A GB8620083D0 (en) 1986-08-18 1986-08-18 Foldable frame assembly
GB8620083 1986-08-18

Publications (2)

Publication Number Publication Date
EP0256837A2 true EP0256837A2 (fr) 1988-02-24
EP0256837A3 EP0256837A3 (fr) 1988-05-04

Family

ID=10602877

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87307090A Withdrawn EP0256837A3 (fr) 1986-08-18 1987-08-11 Ensemble d'ossature pliante

Country Status (3)

Country Link
EP (1) EP0256837A3 (fr)
AU (1) AU7684887A (fr)
GB (1) GB8620083D0 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2240034A (en) * 1990-01-18 1991-07-24 John Martin Foldable chair
GB2353467A (en) * 1999-08-20 2001-02-28 Far Great Plastics Ind Co Ltd Support structure in a folding chair
US6364410B1 (en) * 2000-06-15 2002-04-02 Larry Tang Collapsible cot
WO2002069760A1 (fr) * 2001-03-02 2002-09-12 Tofasco Chaise de plage pliante multi-positions pourvue de solides accoudoirs
US6814403B2 (en) * 2001-03-02 2004-11-09 Edward Zheng Multi-position collapsible beach chair with solid armrests
US7114205B2 (en) * 2000-10-04 2006-10-03 Northpole Ltd. Collapsible bed frame

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR541126A (fr) * 1921-09-15 1922-07-22 Sièges et tables pliants
FR35794E (fr) * 1928-08-10 1930-03-28 Siège pliant
GB666871A (en) * 1948-09-30 1952-02-20 Owen Finlay Maclaren Improvements in chairs
GB790308A (en) * 1954-11-03 1958-02-05 William Pope Chitty An improved folding chair
US3124387A (en) * 1964-03-10 Seating structures
DE3227119A1 (de) * 1981-08-06 1983-02-24 Tokyo baby, Inc., Tokyo Stuhl
FR2532535A1 (fr) * 1982-09-06 1984-03-09 Poulouin Armand Dispositif de siege pliable

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3124387A (en) * 1964-03-10 Seating structures
FR541126A (fr) * 1921-09-15 1922-07-22 Sièges et tables pliants
FR35794E (fr) * 1928-08-10 1930-03-28 Siège pliant
GB666871A (en) * 1948-09-30 1952-02-20 Owen Finlay Maclaren Improvements in chairs
GB790308A (en) * 1954-11-03 1958-02-05 William Pope Chitty An improved folding chair
DE3227119A1 (de) * 1981-08-06 1983-02-24 Tokyo baby, Inc., Tokyo Stuhl
FR2532535A1 (fr) * 1982-09-06 1984-03-09 Poulouin Armand Dispositif de siege pliable

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2240034A (en) * 1990-01-18 1991-07-24 John Martin Foldable chair
GB2353467A (en) * 1999-08-20 2001-02-28 Far Great Plastics Ind Co Ltd Support structure in a folding chair
US6364410B1 (en) * 2000-06-15 2002-04-02 Larry Tang Collapsible cot
US7114205B2 (en) * 2000-10-04 2006-10-03 Northpole Ltd. Collapsible bed frame
WO2002069760A1 (fr) * 2001-03-02 2002-09-12 Tofasco Chaise de plage pliante multi-positions pourvue de solides accoudoirs
US6814403B2 (en) * 2001-03-02 2004-11-09 Edward Zheng Multi-position collapsible beach chair with solid armrests

Also Published As

Publication number Publication date
AU7684887A (en) 1988-02-25
EP0256837A3 (fr) 1988-05-04
GB8620083D0 (en) 1986-10-01

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