EP1290962A2 - Verrouillage automatique pour chaise multi-position - Google Patents

Verrouillage automatique pour chaise multi-position Download PDF

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Publication number
EP1290962A2
EP1290962A2 EP02256169A EP02256169A EP1290962A2 EP 1290962 A2 EP1290962 A2 EP 1290962A2 EP 02256169 A EP02256169 A EP 02256169A EP 02256169 A EP02256169 A EP 02256169A EP 1290962 A2 EP1290962 A2 EP 1290962A2
Authority
EP
European Patent Office
Prior art keywords
chair
legs
stopper
backrest
rod
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Withdrawn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
EP02256169A
Other languages
German (de)
English (en)
Other versions
EP1290962A3 (fr
Inventor
Sing Tak Tsang
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.)
Borneo Tsang Furnishing Sdn Bhd
Original Assignee
Borneo Tsang Furnishing Sdn Bhd
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 Borneo Tsang Furnishing Sdn Bhd filed Critical Borneo Tsang Furnishing Sdn Bhd
Publication of EP1290962A2 publication Critical patent/EP1290962A2/fr
Publication of EP1290962A3 publication Critical patent/EP1290962A3/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Withdrawn legal-status Critical Current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
    • A47C4/04—Folding chairs with inflexible seats
    • A47C4/08—Folding chairs with inflexible seats having a frame made of wood or plastics
    • A47C4/10—Folding chairs with inflexible seats having a frame made of wood or plastics with legs pivotably connected to seat or underframe
    • A47C4/12—Folding chairs with inflexible seats having a frame made of wood or plastics with legs pivotably connected to seat or underframe of adjustable type

Definitions

  • the present invention relates generally to a folding chair having various inclination and is lockable by means of an automatic locking element in an opened out position to prevent the said chair from collapsing accidentally.
  • Chairs are used in large numbers in various occasions and activities such as meeting, discussion, gathering, sleeping, resting, watching television, playing games and so on.
  • a typical chair without multi inclinable backrest will not provide comfort for user to use in different activities.
  • Chairs used on such activities as indicated above are more often not stored after used.
  • Still another object of the present invention to provide an improved collapsible multi position chair having an adjustable inclined backrest, which could be folded and retained in a compact size when it is not in use.
  • the backrest having a different inclination, which is manually adjustable, enables user to adjust the positions in relation to the horizontal plane or the seat of the chair according to their comfortability.
  • the further object of the present invention is to provide a lockable folding chair of the above described type which maybe easily unlocked in order to fold it up.
  • an automatic locking multi position folding chair comprises a base being pivotally connected to the backrest by a plurality of connecting means and supported by a plurality of legs, said legs consisting of two side sets, a rear set and a front set, whereby the rear legs are connected to the said base through the said connecting means attached between the base and the backrest by a pair of bracket means, each of said bracket means having a stopper to rest on the rear leg once the optimum extended position is reached; a pair of angular connectors to connect the both sets of legs for permitting the folding of each set into an elongated structure, each of said angular connectors having a protrusion extending, said protrusion being slidably engage to a guide track on the bottom surface of a pivotable sidearm member to permit the backrest of the chair to be slidable in the desired inclined position; and a locking element comprises a movable rod hingedly connected at least one of the rear legs so as to be able to be brought into a position in which it
  • the two sets of legs and the backrest with the base can be brought together, thereby producing an extremely compact folded position to the chair.
  • closure of the chair is swiftly achieved by simply pushing the front frame leg with respect to the backrest of the chair and the chair will collapse to the folded condition.
  • the locking elements comprise a rod with one end having an inclined surface and the other flat end adapted to a spring fitting fixed inside one end of a bar for pushing said inclined surface end out of the bar through a hole opening at the other end of said bar.
  • the said rod having a hole near the flat end of the rod to enable a bolt mean to fix into the said hole to form a L shape fitting.
  • the said bar having a semi rectangular opening in the middle of the said bar to enable the said bolt mean perpendicularly out from the said bar whereby the said semi rectangular opening having a recess slot at the end of the said opening to block the L shape fitting to retract to its original position once the said fitting is pull against the spring to form an unlock position.
  • Figure 1 is a perspective view of an automatic locking multi position folding chair according to the present invention in its open stable condition.
  • Figure 2 illustrates a detail of the connection between the leg and the armrest of the chair of Figure 1.
  • Figure 3 illustrates a detail of locking mechanism between the locking element and bracket mean of the chair of Figure 1.
  • Figure 4 is a perspective view of the chair in its folded condition.
  • An automatic multi position folding chair of the preferred embodiment as shown in Figure 1 is provided a sitting base (2) being pivotally connected to the backrest (1) with a pair of L shape pins (31) whereby the shorter portion of each pins is attached to the both rear end side of the said base (2) and the other longer portion of each pins is attached to the both side of the lower end of the said backrest (1) by attachment means (32) which could be nuts and bolt assemblies, fasteners, screws, snaps, clamps, clips or other such equivalents that could be used to secure one surface to another.
  • a set of inclined front legs (4) is pivotally attached at about midway of each said front legs to a position near to the front end side of the said base by conventional attachment means and a set of inclined rear legs (5) is pivotally attached to the rearmost of said base (2) by using bracket means (21) whereby said bracket means having at least two holes and at least a stopper (22) at one end of the said bracket means (21).
  • the first hole (23) which is located at the other end of said bracket means (21) is pivotally connected to the middle of said rear leg (5) and the second hole (24) which is located near to the stopper (22) and horizontally lower than the first hole is fixed to the base (2) through a position intermediate between the shorter portion and the longer portion of said L shape pin (31).
  • the said stopper (22) is put into use, resting on the rear legs (5) when the chair is unfolded into extended seating position and the stopper (22) will be moved away from the said legs when the chair is not in use to enable the chair to be folded substantially flat for easy storage purposes.
  • a pair of angular connectors (41) is connected to each of the upper end of the front leg and rear leg.
  • Each of said angular connectors (41) having a lateral protrusion (42) extending upwardly therefrom as shown in Figure 2.
  • a pair of sidearm members (3) is pivotally mounted to the backrest (1) whereby each sidearm member is formed to provide a longitudinal guide track (51) at the bottom surface thereof.
  • the track (51) is constructed as to accommodate the said protrusion (42) from the said angular connector (41).
  • the said protrusion (42) is served as a guide element to slide within the track (51) so as to enables each sidearm (3) to pull forwardly and push backwardly when the chair is in its open stable position.
  • the underside of the said track (51) having a plurality of stopper (which is not illustrated in the drawing) which cooperates with the protrusion (42) to enable user to have various of backrest desired inclined positions by simply lifting the both sidearm and adjust accordingly.
  • At least one locking element (11) is hingedly fixed to a position nearby the place where the stopper (22) rest at the rear leg (5).
  • the said locking element (11) comprises a rod (12) with one end having an inclined surface and the other flat end adapted to a spring (16) fitting fixed inside one end of a bar (13) for pushing said inclined surface end out of the bar through a hole opening at the other end of said bar.
  • the said rod (12) having a hole near the flat end of the rod to enable a bolt mean (14) to fix into the said hole to form a L shape fitting.
  • the said bar (13) having a semi rectangular opening in the middle of the said bar to enable the said bolt mean (14) perpendicularly out from the said bar (13) whereby the said semi rectangular opening having a recess slot (15) at the end of the said opening to block the L shape fitting to retract to its original position once the said fitting is pull against the spring to form an unlock position.
  • the bracket means (21) In the process to unfold the chair into seating position, the bracket means (21) will be turned to rest onto the rear leg(5).
  • the stopper (22) of the said bracket means (21) will hit onto the inclined surface of the L shape fitting just before the stopper (22) reaches the rear leg and forces the L shape fitting to move away against the force of the spring(16).
  • the said L shape fitting will return back to its original position or locking position by the force of the spring (16) and this will block the stopper (22) to move away from its resting surface.
  • This arrangement is such that the locking element (11) automatically locks the chair during the action of unfolding the chair into seating position.
  • the said L shape fitting of the locking element (11) has to be manually pull against the spring (16) into the recess slot (15) so as to prevent the fitting to retract by the force of the spring (16).
  • the bracket mean (21) will hit the bolt mean (14) of the L shape fitting out of the recess slot (15) to enable the fitting release to its original position and ready for the mechanism of locking the chair during the next action of unfolding the chair.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
EP02256169A 2001-09-06 2002-09-05 Verrouillage automatique pour chaise multi-position Withdrawn EP1290962A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
MY0104192 2001-09-06
MYPI20014192 2001-09-06

Publications (2)

Publication Number Publication Date
EP1290962A2 true EP1290962A2 (fr) 2003-03-12
EP1290962A3 EP1290962A3 (fr) 2003-12-03

Family

ID=19749519

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02256169A Withdrawn EP1290962A3 (fr) 2001-09-06 2002-09-05 Verrouillage automatique pour chaise multi-position

Country Status (1)

Country Link
EP (1) EP1290962A3 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3135551A (en) * 1961-04-11 1964-06-02 Andreoli Franco Deck-chair with automatic backrest locking device
EP0412239A1 (fr) * 1989-08-10 1991-02-13 HEINZ KETTLER METALLWARENFABRIK GmbH & Co KG Meuble d'assise et/ou de couchage
WO1997039657A1 (fr) * 1996-04-24 1997-10-30 Sunlite Casual Furniture, Inc. Chaise pliante
US6030032A (en) * 1999-01-19 2000-02-29 Shin Yen Enterprise Co., Ltd. Armrest for a chair
FR2787689A1 (fr) * 1998-12-29 2000-06-30 Lallemand Ets Accoudoir pour siege pliant et siege pliant comportant de tels accoudoirs

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3135551A (en) * 1961-04-11 1964-06-02 Andreoli Franco Deck-chair with automatic backrest locking device
EP0412239A1 (fr) * 1989-08-10 1991-02-13 HEINZ KETTLER METALLWARENFABRIK GmbH & Co KG Meuble d'assise et/ou de couchage
WO1997039657A1 (fr) * 1996-04-24 1997-10-30 Sunlite Casual Furniture, Inc. Chaise pliante
FR2787689A1 (fr) * 1998-12-29 2000-06-30 Lallemand Ets Accoudoir pour siege pliant et siege pliant comportant de tels accoudoirs
US6030032A (en) * 1999-01-19 2000-02-29 Shin Yen Enterprise Co., Ltd. Armrest for a chair

Also Published As

Publication number Publication date
EP1290962A3 (fr) 2003-12-03

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