WO2004014191A1 - Chaise pliante - Google Patents

Chaise pliante Download PDF

Info

Publication number
WO2004014191A1
WO2004014191A1 PCT/GB2002/003783 GB0203783W WO2004014191A1 WO 2004014191 A1 WO2004014191 A1 WO 2004014191A1 GB 0203783 W GB0203783 W GB 0203783W WO 2004014191 A1 WO2004014191 A1 WO 2004014191A1
Authority
WO
WIPO (PCT)
Prior art keywords
chair
legs
seat
support member
arm support
Prior art date
Application number
PCT/GB2002/003783
Other languages
English (en)
Inventor
John Radway Miles
Original Assignee
John Radway Miles
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 John Radway Miles filed Critical John Radway Miles
Priority to AU2002319549A priority Critical patent/AU2002319549A1/en
Priority to PCT/GB2002/003783 priority patent/WO2004014191A1/fr
Publication of WO2004014191A1 publication Critical patent/WO2004014191A1/fr

Links

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
    • A47C4/42—Folding chairs with flexible coverings for the seat or back elements having a frame made of metal
    • A47C4/44—Folding chairs with flexible coverings for the seat or back elements having a frame made of metal with legs pivotably connected to seat or underframe
    • A47C4/48—Folding chairs with flexible coverings for the seat or back elements having a frame made of metal with legs pivotably connected to seat or underframe with cross legs
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/54—Supports for the arms

Definitions

  • the present invention relates to a folding chair and a method of manufacturing a folding chair.
  • Folding chairs of various construction which are typically used outdoors and for occasional use, have been known for many years. Such chairs are required to provide a degree of comfort, to fold away flat to make efficient use of storage space, and to be of a simple construction to provide for economic manufacturing. Therefore, folding chair designs provide a compromise in respect of such constraints.
  • An example of a known folding chair has a metallic tubular construction, with a textile seat and back rest. Such chairs generally have arm rests, and consequently a high number of components which are pivotally connected. Due to the complex nature of their construction and folding mechanisms, they are generally only designed to provide one back rest position.
  • a folding chair comprising: seat means configured to support a person in a sitting position; a back rest pivotally attached to said seat means; an arm support member pivotally attached to said seat means; and attachment means for detachably attaching said arm support member to said back rest when said chair is unfolded, whereby said arm support member provides support for said back rest.
  • Figure 1 shows a folding chair 101 embodying the present invention
  • Figure 2 shows the chair 101 with the back rest 109 disengaged from the arm support member 110;
  • Figure 3 shows the chair 101 in the intermediate folded configuration
  • Figure 4 shows the chair 101 after being completely folded up
  • Figure 5 illustrates the method of manufacturing the chair 101 ;
  • Figure 6A and 6B show further details of the post 201 on arm support member 110;
  • FIGS. 1A and 7B provide further details of the hinge mechanism 130
  • Figure 8 shows two pivot components 801 and 802 which connect together to form the pivot assembly 131;
  • Figure 9 shows a folding chair 901 providing an alternative embodiment of the present invention.
  • a folding chair 101 embodying the present invention is shown in Figure 1.
  • the chair is shown in Figure 1 in its unfolded configuration, in which it provides a seat for a person.
  • the chair 101 has four legs 102, 103, 104 and 105 which support a seat portion 106 made from a foldable textile material such as canvas.
  • the legs and seat portion provide a means for supporting a person in a sitting position.
  • Each leg 102 to 105 is rigidly attached to another leg by a strut which extends between the legs at their lower ends.
  • strut 107 extends between the pair of legs 103 and 105
  • strut 108 extends between the pair of legs 102 and 104.
  • the pairs of legs 103 and 105 are pivotally attached to the other pair of legs 102 and 104 by a rivet 140 passing through legs 102 and 103 and a similarly positioned rivet (not shown in Figure 1) passing through legs 104 and 105.
  • This pivotal attachment of the legs allows them to be folded up by rotating relative to each other.
  • Each of the legs 102, 103, 104 and 105 support one of several seat support members.
  • a front seat support member extends between the legs 102 and 104, across the front of the chair 101, while a pair of rear seat support members extend between legs 103 and 105, across the rear of the chair. (The seat support members are shown in Figure 5.)
  • Opposing edges 121 and 122 of the textile seat portion 106 are wrapped around and attached to the seat support members, such that they support the seat portion above the ground.
  • the chair 101 also includes a back rest 109, shaped to support the back of a person when sitting on the seat portion 106.
  • the back rest 109 is attached by a hinge mechanism 130 to the rear seat support members.
  • the hinge mechanism 130 is configured such that when the chair is to be stored away, the back rest may be folded down by rotating it with respect to the legs.
  • the arm support member 110 is “C” shaped, and each of its ends is pivotally attached to the top of one of the legs 102 and 104 by a respective pivot assembly 131 and 132. As shown in Figure 1, the middle of the "C", of the arm support member 110, is attached to the rear of the back rest 109, when the chair is in its unfolded configuration. Therefore, when the chair is being used, and the user leans back against the back rest 109, the arm support member
  • the arm support member 110 extends along both the left and right sides of the seat and so . it also provides arm rests for the user's arms.
  • the legs 102 and 104 to which the arm support member is attached, have portions 111 and 112 respectively which extend above the seat portion 106.
  • the whole of the arm support member 110 is located above the seat portion 106, at a height that provides a comfortable resting position for the user's arms.
  • the arm support member 110 may also be gripped by the hands of a user to provide support to the user while they are getting into and out of the chair.
  • a chair is manufactured in the same manner as chair 101, but the leg portions 111 and 112 are collinear with the remaining portion of the respective legs.
  • legs 102 and 104 of the alternative chair are substantially straight for the whole of their length. This provides the folded chair with a flatter configuration.
  • the attachment of the arm support member 110 to the back rest 109 is releasable to allow the chair 101 to be folded up.
  • the chair 101 is shown in Figure 2 with the back rest 109 disengaged from the arm support member 110.
  • a pair of posts 201 and 202 are rigidly fixed to the arm support member 110, so that they extend from the inside of its "C" shaped curve.
  • the posts are used for releasably attaching the arm support member to the back rest 109.
  • the back rest 109 is formed from aluminium alloy tubing, and has a left portion 203 and right portion 204 connected by a bend portion 205.
  • the right and left portions 204 and 203 each have a group of three slots in their rear tube wall.
  • the two groups of slots are similarly positioned from the bend portion 205 to provide three pairs of slots 207, 208 and 209.
  • the slots are arranged and shaped such that a pair of slots, such as pair 206, may receive, and retain, the pair of posts 201 and 202.
  • the number of pairs of slots differs from the three of the present embodiment, providing less, or even more, choice of back support position.
  • the first step is to disengage the arm support member 110 from the back rest 109, as shown in Figure 2. Having done this, the arm support member is then pivoted upwards over the back rest, to allow the back rest to be freely rotated backwards. Having rotated the back rest such that its hinge mechanism 130 is uppermost, the arm support member is then also rotated backwards so that it comes to rest on the back rest. The chair is then in an intermediate folded configuration in which the arm support member and back rest are folded down, but the legs are still unfolded.
  • FIG. 1 The chair 101 is shown in the intermediate folded configuration in
  • the legs 102 and 103, and 104 and 105 are rotated relative to each other, in a scissors-like movement.
  • the seat portion 106 being a foldable textile, simply folds as the legs fold together.
  • the seat portion 106 is a rigid object, for example, formed from a plastics material, wood or metal.
  • the seat portion is pivotally attached to the front seat support member, and has a lip which hooks over the rear seat support member or members.
  • the folding of these chairs may be performed in the same manner as for the chair 101, up to the intermediate folded configuration.
  • the chair 101 is shown in Figure 4 after being completely folded up as described above.
  • the back rest 109 has been folded backwards so that its hinge mechanism 130 is uppermost, the arms support member 110 rests against the back rest, the right legs 102 and 103, and left legs 104 and 105, have been folded up in a scissors-like manner, causing the textile seat portion 106 to be folded in half.
  • the method of manufacturing the chair 101 is illustrated in Figure 5.
  • the seat portion is produced by first cutting a textile material to the required dimensions.
  • the textile material in the present case is canvas but it may be an alternative suitable material such as woven nylon.
  • the required shape is a rectangle, with a rectangle 501 cut out of the middle of one edge to provide clearance for the hinge mechanism 130. Portions of material 502 at that edge are then folded over and sewed (indicated by stitches 503) to produce two loops 504 of material extending along said edge. Similarly, a portion of canvas material is folded over and sewed (505) to produce a loop 506 extending across the opposing edge.
  • the textile seat portion 106 is then connected to the rear seat support members 507 and 508, which extend inwards from legs 103 and 105 respectively.
  • the connection is made by sliding the loops 502 over the seat support members 507 and 508.
  • the two legs 103 and 105 are then sprung apart to allow the insertion of a hinge locator 509 into the ends of the seat support members 507 and 508. Having located the hinge locator 509, the legs 102 and 103 are connected together by the rivet 140, and legs 104 and 105 are connected together by the rivet 540.
  • the front seat support member 510 which is also a length of aluminium alloy tubing, is then positioned within loop 506 at the front edge of the seat portion 106, before being attached to legs 102 and 104 by screws 551 and 552.
  • the back rest 109 is attached by first springing apart its left and right portions 203 and 204 to locate their ends within a hinge block 511. The ends of the back rest are retained within the block by means of screws (not shown).
  • the hinge block 511 which is made from a plastics material, has a hollow cylindrical portion 521 having a slot running along its length. The inner diameter and slot of the cylindrical portion are dimensioned to allow it to be clipped onto the seat support members 507 and 508, and to allow it to swivel around them. Further details of the hinge mechanism 130 will be described with reference to Figures 7 A and 7B.
  • the arm support member 110 is a length of aluminium alloy tubing formed to the required "C" shape.
  • the posts 201 and 202 each have an internal thread and are attached to the arm support member 110 by a screw passing through respective holes in the arm support member.
  • the pivot assembly 131 has spigots 512 and 513 located at each end, and pivot assembly 132 has similar spigots 514 and 515.
  • Spigots 512 and 515 are push fitted into the open ends 516 and 517 of the arm support member respectively.
  • the spigots 513 and 514 are then push fitted into the open ends 518 and 519 of the legs 102 and 104.
  • the arm support member is pivotally attached to the legs 102 and 104.
  • the arm support member 106 is attached to the upper end of legs 102 and 104 by a rivets positioned within drilled holes, i.e. in a similar manner to the connection between legs 102 and 103.
  • Figures 6A and 6B Further details of the post 201 is provided by Figures 6A and 6B.
  • Figures 6A shows a cross sectional view of the post 201 , back rest 109 and arm support member 110, while Figure 6B shows a perspective view of said post located on the arm support member.
  • the post 201 is attached to the arm support member by a threaded bolt 601 which passes through holes 610 and 611 in the arm support member 110 and which is screwed into said post.
  • the post is made from a single piece of metal and has a cylindrical stem 602 and a head 603.
  • the head has a curved top surface, and a pair of flat parallel sides 604, such that it can fit through the rectangular slots 206, 207, 208 in the back rest.
  • the head 603 is configured to overhang the cylindrical stem 602 to provide a hook suitable for hooking onto the tube wall of the back rest.
  • the head 603 is passed through a slot, such as slot 207, and the arm support member is allowed to drop under its own weight. Consequently, the cylindrical portion 602 comes to rest on the bottom of the slot and the head 603 hooks behind the tube wall.
  • the arm support member 110 can subsequently be released by lifting it to allow the head 603 to pass back through the slot 207.
  • the hinge locator 509 is made from a single piece of material having a central disc shaped portion 701 and two similar cylindrical portions 702 and 703 extending from the faces of the disc 701.
  • the disc shaped portion 701 has a larger diameter than the outside diameter of the seat support members 507 and 508, while the cylindrical portions 702 and 703 are of smaller diameter such that they are a good fit within said seat support members.
  • the hinge block 511 is configured to securely retain the left and right portions 204 and 203 of the back rest, while retaining the seat support members 507 and 508 within its hollow cylindrical portion 521.
  • the hollow cylindrical portion 521 has a slot 704 perpendicular its axis which is sufficiently wide to accept the disc portion 701 of the hinge locator.
  • the hinge locator 509 thus provides a stop to prevent the hinge block sliding along the seat support members.
  • Each of the components 801 and 802 comprises a metal rod fixed within a moulded body made from a plastics material.
  • the male component 801 has a metal rod 803 which, apart from a threaded portion 805, is entirely encapsulated in the plastic body 807.
  • the metal rod has a right angle bend such that it generally follows the outer contours of the plastic moulding.
  • the female component 802 also comprises a bent metal rod 804 encapsulated within a plastic body 809.
  • the metal rod 804 has an threaded hole 806, dimensioned to receive the threaded portion 805.
  • the pivot assembly is therefore assembled by screwing the threaded portion 805 into the threaded hole 806.
  • the spigots 512 and 513 which form part of the plastic mouldings, are grooved to facilitate their insertion into the open ends of the arm support member 110 and the leg 102.
  • a folding chair 901 providing an alternative embodiment of the present invention is shown in Figure 9.
  • the folding chair 901 comprises of moulded plastic components rather than the aluminium alloy and canvas of chair 101.
  • the plastic components are moulded in polypropylene.
  • the chair 901 is similar to chair 101 in that it has a leg 902 pivotally attached to a second leg 903, and a third leg 904 pivotally attached to a fourth leg 905.
  • Legs 903 and 905 are connected at their lower end by a strut 907, and legs 902 and 904 are connected by a similar strut (not shown).
  • a front seat support member extends between the legs 902 and 903 near to their upper end, and a "C" shaped arm support member 910 is pivotally attached to the upper end of said legs, above the front seat support member.
  • the arm support member 910 is provided with a pair of spigots (not shown) which allow it to be releasably attached to corresponding sockets (not shown) formed within a back rest 909.
  • chair 901 has a single rear seat support member extending between legs 903 and 905 to provide it with greater strength.
  • Back rest 909 has a hollow cylindrical portion 921 , which performs a similar hinging function to the hollow cylindrical portion 521 of chair 101.
  • cylindrical portion 921 is integrally moulded with the back rest
  • the chair 901 has a moulded plastic seat portion 906 supported by the two seat support members.
  • the seat portion 906 is rotatably attached to the front seat support member, and releasably hooked onto the rear seat support member, so that it may be lifted up when the chair is folded up.
  • the moulded plastic seat portion 906 is rotatably attached to the rear seat support member, and releasably hooked onto the front seat support member. Consequently, during folding, the seat portion is rotated backwards along with the back rest 909. The arm support member may then be folded backwards as described earlier. Alternatively, the arm support member may be rotated fully forwards such that its pivotal connections are uppermost, and then left in this forward position when the chair is completely folded.
  • a chair which is otherwise similar to chair 901 , is configured such that legs 903 and 905 are located inside of legs 902 and 904, rather than outside as shown in Figure 9.
  • the chair does not have a strut extending between the lower ends of legs 902 and 904. Consequently, the legs may be folded up such that legs 903 and 905 are in the same plane as legs 902 and 904, and thus provide a flatter folded configuration.
  • the legs 902 and 905 are located inside of legs 902 and 904, rather than outside as shown in Figure 9.
  • the chair does not have a strut extending between the lower ends of legs 902 and 904. Consequently, the legs may be folded up such that legs 903 and 905 are in the same plane as legs 902 and 904, and thus provide a flatter folded configuration.

Abstract

L'invention concerne une chaise pliante (101) comprenant des moyens pour s'asseoir (102, 103, 104, 105, 106) configurés pour supporter une personne en position assise. Un dossier (109) est fixé pivotant aux moyens pour s'asseoir et un support accoudoir (110) est fixé pivotant auxdits moyens pour s'asseoir. Ladite chaise présente des moyens de fixation (201, 202, 206, 207, 208) permettant de fixer, de manière à pouvoir détacher, ledit support accoudoir au dossier, lorsque la chaise est dépliée, ledit support accoudoir permettant de supporter le dossier.
PCT/GB2002/003783 2002-08-13 2002-08-13 Chaise pliante WO2004014191A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2002319549A AU2002319549A1 (en) 2002-08-13 2002-08-13 Folding chair
PCT/GB2002/003783 WO2004014191A1 (fr) 2002-08-13 2002-08-13 Chaise pliante

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/GB2002/003783 WO2004014191A1 (fr) 2002-08-13 2002-08-13 Chaise pliante

Publications (1)

Publication Number Publication Date
WO2004014191A1 true WO2004014191A1 (fr) 2004-02-19

Family

ID=31503185

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2002/003783 WO2004014191A1 (fr) 2002-08-13 2002-08-13 Chaise pliante

Country Status (2)

Country Link
AU (1) AU2002319549A1 (fr)
WO (1) WO2004014191A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB203890A (en) * 1922-09-04 1923-09-20 Harry Robert Metcalfe Improvements in or relating to folding chairs and the like
US1855130A (en) * 1931-08-14 1932-04-19 Frank C Snedaker & Co Inc Folding chair
US3709554A (en) * 1968-11-20 1973-01-09 T Feher Adjustable chair
US4273379A (en) * 1979-09-05 1981-06-16 The Telescope Folding Furniture Co., Inc. Collapsible chair
DE3401552A1 (de) * 1984-01-18 1985-07-18 Rausch KG, Inh. Karl Rausch, 7500 Karlsruhe Garten-klappsessel

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB203890A (en) * 1922-09-04 1923-09-20 Harry Robert Metcalfe Improvements in or relating to folding chairs and the like
US1855130A (en) * 1931-08-14 1932-04-19 Frank C Snedaker & Co Inc Folding chair
US3709554A (en) * 1968-11-20 1973-01-09 T Feher Adjustable chair
US4273379A (en) * 1979-09-05 1981-06-16 The Telescope Folding Furniture Co., Inc. Collapsible chair
DE3401552A1 (de) * 1984-01-18 1985-07-18 Rausch KG, Inh. Karl Rausch, 7500 Karlsruhe Garten-klappsessel

Also Published As

Publication number Publication date
AU2002319549A1 (en) 2004-02-25

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