FR2492644A1 - Folding chair under restricted volume and length - Google Patents

Folding chair under restricted volume and length Download PDF

Info

Publication number
FR2492644A1
FR2492644A1 FR8023650A FR8023650A FR2492644A1 FR 2492644 A1 FR2492644 A1 FR 2492644A1 FR 8023650 A FR8023650 A FR 8023650A FR 8023650 A FR8023650 A FR 8023650A FR 2492644 A1 FR2492644 A1 FR 2492644A1
Authority
FR
France
Prior art keywords
lt
gt
folding
parallelograms
feet
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Withdrawn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
FR8023650A
Other languages
French (fr)
Original Assignee
Pierre Jean Paul
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 Pierre Jean Paul filed Critical Pierre Jean Paul
Priority to FR8023650A priority Critical patent/FR2492644A1/en
Publication of FR2492644A1 publication Critical patent/FR2492644A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C4/00Foldable, collapsible or dismountable chairs
    • A47C4/28Folding chairs with flexible coverings for the seat or back elements
    • A47C4/286Folding chairs with flexible coverings for the seat or back elements foldable side to side and front to back, e.g. umbrella type
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C4/00Foldable, collapsible or dismountable chairs
    • A47C4/28Folding chairs with flexible coverings for the seat or back elements
    • A47C4/30Attachment of upholstery or fabric to frames

Abstract

The invention relates to the equipment of the type "camping armchair" providing maximum comfort to the use, transport or storage taking place under a minimum of space. </ P> <p> IT INCLUDES AN ASSISI 1 AND A DOSSIER 2 CONSISTING OF CANVAS MOUNTED ON SPRING ROLLERS 3. THE WIDTH IN RIGIDITY IS PROVIDED BY TWO PARALLELOGRAMS 4 AND 5, THEIR LOCKING IN OPEN POSITION IS PROVIDED BY SPACERS 7 USING THE GROUND CONTACT TO OPERATE. THE COMPENSATION SPRINGS 6 BALANCE THE EFFORT OF THE WRAPPERS 3. THE PARALLELOGRAMS AND SPRINGS ASSEMBLY SEEDS INTO THE FEET OF THE ARMCHAIR IN THE FIRST FOLDING PHASE. IN A SECOND TIME, THE TILT MUST BE MOVED FORWARD. THIS BEGINS FIRST THE REAR FEET BENDING THROUGH A GEAR ARTICULATION 8 AND THEN THE FRONT FEET BY THE 10-11 SOLIDARY ARMREST CONNECTION SET 9. THE 12 HANDLES SERVES THE FOLDING AND TRANSPORTING. </ P> <P> AMONG THE MOST INTERESTING APPLICATIONS OF THE INVENTION, WE CAN CITE THE CAMPING CHAIR. </ P>

Description

The present invention relates to materials of the type "seat

  foldable ", to offer maximum comfort to its use.

  for its use, transport and storage before

  do it in the smallest possible space.

  In known materials of this kind, folding systems,

  whoever they are brings the armchair back to a relatively

  carrying, because the interior space of the set remains constant, at least in one dimension. In addition, the canvases constituting the seat and the

  folder, take at the time of folding, the most diverse positions

  his. This causes on the one hand, discomfort in the joints of the frame, on the other hand premature wear of these fabrics because of the many "wrinkles" or jamming to which they are put.

  The chair, object of the invention, avoids these inconveniences.

  vantages. It is indeed designed in such a way that after folding, it does not

  there is no "void" in its volume. The rigid frameworks of the

  They are closed in "wallet", they are connected to each other by two parallelograms with automatic locking, the whole being rigid. The canvases or lamellae constituting the seat and backrest

  are mounted on reels integrated in the profiles of the

  ture. When folding is done, the mechanical elements also fit into the foot profiles. The combination of these systems allows an extremely small bulk of the folded assembly, because it is limited to the volume of elements nested between them, without

empty.-

  According to a first variant, the locking of the parallelograms

  ensuring the rigidity of the framework, is achieved by a bridging

  alone or associated with a spring blade. This lock uses the

  foot pressure on the ground to work.

  According to a second variant, the base of the parallelogram is supported on the ground, thus exerting a reaction torque proportional to the load supported at the level of the seat. Balance of contrair

is thus realized.

  On the basis of the association of these principles, many

  laughing can be achieved: chair, wheelchair,

  chair "relax", table (winding slats).

-2- 2492644

  The attached drawing 1/8 is a front view of the chair.

  The attached drawing 2/8 is a side view of the chair.

  The attached drawing 3/8 shows the operating principle

canvas reels.

  The attached drawing 4/8 shows the locking principle

  when the locking means is a spacer.

  The attached drawing 5/8 shows the locking principle

  when the locking means is a spring blade.

  The attached drawing 6/8 is a representation of the articulation

back and gear.

  The attached drawing 7/8 shows two variants of the parallele-

  gram. The attached drawing 8/8 shows a variant of the armchair

"relax" version.

  1 - As shown in the drawing 1/8, the chair has two canvases, one forming the seat 1, the other constituting the backrest 2. These two canvases are integral with winding mandrels

  spring 3, on which they retract during folding.

  The parallelograms 4 ensure in the first place the normal deployment of the chair when it opens, secondly the parallelism

  winding of the canvases, and finally the rigidity of the whole in po-

  "open" position. Traction springs 6 compensate for the force exerted by the reels 3, which are subjected to a permanent rotational movement tending to bring the sides of the chair closer together. The

  Parallelogram locking is ensured by a sliding spacer

  te 7 (detail following plan 4/8 and 5/8 alternatively). The outline drawn in fine dotted line in the axis of the drawing represents the size of the

  chair after the first phase of folding.

  2 - As shown in drawing 2/8, the chair, in its second folding phase, operates according to the movements

  schematized by the arrow arrows. Switching the folder 8 provoked

  as the folding of the front and back feet. At the rear linkage, a gear with a multiplier ratio enables rotation and

  the folding of the feet 9 before that of the feet.

  Rear feet are secured by wedging. The establishment of the front feet is therefore with a "delay" that keeps the folding order without possibility of reversal. The changeover of -3-

  8, causes rotation of the rotating support 11 through

  armrest 12. The rotational movement partly

  11, causes the feet 10 to bend through the

  13. The handles 14 are usable for carrying out the first

  first phase of folding and transport of the folded set. The addition of a tapered pair or a link assembly optionally makes it possible to simultaneously make the two plyag phases this offering the possibility of carrying out the operation with a single manipulation. 3. - As shown in the drawing 3/8, the reel 3 is as follows: FIG. 1 - "Open" position of the chair, the sewn fabric and

  glued on the chucks is stretched.

  Fig. 2 - Intermediate position during the reconciliation of

winders.

  Fig. 3 - "Closed" position of the chair. The canvas is wrapped entirely on the mandrels. These have opposite rotational movements. Depending on the application, the canvases can be replaced

  by lamellae wrapping according to the same principle.

  The cut "AA" comprises a threaded rod 14 immobilized on the armature 8 of the chair by two nuts. The spring 15 is "screwed" onto this threaded rod, making them integral, therefore rotatio-linked. The end of the spring, which has been subjected to a constraint in reverse rotation to ensure the return, is made integral with the

  mandrel 16 by means of a screw 17. The rotation constraint

  tion is performed and tared by rotation of this screw which is then

  connected to the mandrel 16 by the pin 18.

  4 - As shown in drawing 4/8, the automatic locking system of the parallelograms thus functions. 1 - The lower part of the parallelogram 4 is guided in a slot 19 by a stud bolt 20. The sliding spacer 21 is itself guided in the foot 10, consisting of a U-shaped profile by two-sided contact, and limited in vertical travel by a pin screw 22. When the ground support is performed after opening the chair, the spacer 21 retains the position shown in FIG. blocking by a plane contact the end of the parallelogram 4. Fig. 2 shows the same assembly being bent. The armchair

  being raised, the blocking is no longer ensured by the support on the ground. Entre

  toise 21 "falls", and frees the end of the parallelogram. Inter-

  manual intervention of the user then makes it possible to slide

  seems to retract the entire parallelogram 4 and spring

  in the foot 10. In the folded position, the

  toise is kept in the low position by contact of the parallelogram

on a wing of the spacer.

  - As shown in drawing 5/8, the means of blocking

  cage by spacer is associated with a spring blade which ensures the

  rusting of the chair. This leaf spring 23 maintains the position-

  parallelogram 4, thus avoiding inadvertent closing of the chair during its movement for example. The use of this spring blade imposes on the user a greater effort

to perform the unlocking.

  6 - As represented. in drawing 6/8, the engi-

  ensures, by means of its multiplying ratio, the folding of

  before those ahead come under the seat. The driving part is a toothed sector which acts only in the first part of the folding; beyond its action, the rear feet are maintained

  by jamming in the closed position.

  7 - As shown schematically in drawing 7/8, the parallels

  the elograms work in reaction. Their lower extremities are

  in support of the ground, which causes a couple whose value is

  proportional to the load supported at the level of the seat. The encum-

  in the first phase of folding are defined by the contours

  fine dotted line in the axis of the drawings.

  8 - As shown in the version "relax" in the drawing 8/8, the chair is equipped with a footrest, whose elements are

  similar to the seat or the backrest.

  The material, object of the invention, can be used in all

  the cases where a congestion constraint is imposed on the user.

  This is particularly the case in the field of camping or ranching.

  given. Indeed, the known materials have a volume "folded" rather im-

  which renders their transport binding or even impossible

  quefois. This material as described and its many variants like

- 5 - 2492644

  chairs, "relax", slatted tables or bed in the field of leisure or furniture, is suitable for all forms of transport. He can easily find a place on the luggage rack of a "two wheels", or be carried along with a backpack for a hiker. Another application is that of the wheelchair for disabled who thus becomes an easy transport by car. Children's strollers are also a field of application

of this invention.

  The most interesting applications are in the hardware

camping and recreation.

Claims (4)

  1 - folding armchair characterized in that its volume in posi-
  closed circuit is reduced to that of its framework.
  2 - Folding tool according to claim 1, characterized in that the webs or slats constituting the seat and the backrest, are provided with reels integrated into the frame.
3 - folding chair according to claim 1, characterized in that the locking of the parallelograms is provided by spacers
  using the ground support to function.
  4 - folding chair according to claim 1, characterized in that
  the parallelograms, resting directly on the ground, ensure the rigidity
dity of the framework by reaction.
  Folding chair according to claim 1, characterized in that the tensile force exerted by the reels, and tending to
  the sides of the frame, is compensated by tractive
  acting on the arms of parallelograms.
- 6 -
FR8023650A 1980-10-28 1980-10-28 Folding chair under restricted volume and length Withdrawn FR2492644A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8023650A FR2492644A1 (en) 1980-10-28 1980-10-28 Folding chair under restricted volume and length

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8023650A FR2492644A1 (en) 1980-10-28 1980-10-28 Folding chair under restricted volume and length
EP81401612A EP0052031A1 (en) 1980-10-28 1981-10-15 Chair foldable into reduced volume and length

Publications (1)

Publication Number Publication Date
FR2492644A1 true FR2492644A1 (en) 1982-04-30

Family

ID=9247701

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8023650A Withdrawn FR2492644A1 (en) 1980-10-28 1980-10-28 Folding chair under restricted volume and length

Country Status (2)

Country Link
EP (1) EP0052031A1 (en)
FR (1) FR2492644A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2662589B1 (en) * 1990-06-01 1992-08-07 Levy Lionel Folding and portable long chair.
GB2304279B (en) * 1995-08-14 1999-04-28 Gary Linley Folding chair
DE19804546B4 (en) * 1997-02-12 2006-07-06 Karg, Peter W. Foldable folding chair in two directions
US6824208B2 (en) * 2001-03-02 2004-11-30 Edward Zheng Single-motion collapsible quad chair with solid armrest
US6607240B2 (en) * 2001-12-19 2003-08-19 Edward Zheng Collapsible chair with solid arm rest and tensioned seat
US6854797B1 (en) 2002-09-09 2005-02-15 John S. Thomas Foldable bench

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2713385A (en) * 1951-04-11 1955-07-19 Dwight E Mcquilkin Four way folding chair

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH173674A (en) * 1933-12-09 1934-12-15 Jaccard Georges Folding Lounger.
CH269753A (en) * 1949-01-05 1950-07-31 Erni Maurice Folding chair.
DE2349264C2 (en) * 1973-10-01 1983-03-17 Bemico Enschede B.V., Enschede, Nl

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2713385A (en) * 1951-04-11 1955-07-19 Dwight E Mcquilkin Four way folding chair

Also Published As

Publication number Publication date
EP0052031A1 (en) 1982-05-19

Similar Documents

Publication Publication Date Title
US8714581B2 (en) Compact foldable stroller
US9815487B2 (en) Compact foldable stroller with one-handed fold control
US8567866B2 (en) Stroller seat pod
US4907794A (en) Foldable rolling walker
US9561817B2 (en) Stroller with telescopic and locking members
US4889383A (en) Folding chair
CA1307016C (en) Convertible carriage
US6079777A (en) Combination chaise lounge and tote cart
US5988657A (en) Carry-on stroller case
US7118172B1 (en) Backpack chair
EP2015976B1 (en) Foldable and height-adjustable stroller
EP0694006B1 (en) Collapsible stroller
CA1153034A (en) Baby carriage
US3936069A (en) Collapsible baby stroller
US8083240B2 (en) Foldable stroller
KR880003567Y1 (en) Baby carriage
US6715824B2 (en) Apparatus to secure a furniture framework
US6736450B2 (en) Collapsible chair
US4577901A (en) Convertible utility chair
US6425151B2 (en) Cabinet having a fold-away bed
US8696015B2 (en) Stroller
US4285541A (en) Combined chair and bed
US4836573A (en) Combination infant stroller and baby bassinet
US8894089B2 (en) Multi-purpose wheeled conveyance
US5741020A (en) Collapsable combination chair walker

Legal Events

Date Code Title Description
ST Notification of lapse