FR2759938A1 - Height adjustable chair usable by both children and adults - Google Patents

Height adjustable chair usable by both children and adults Download PDF

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Publication number
FR2759938A1
FR2759938A1 FR9702318A FR9702318A FR2759938A1 FR 2759938 A1 FR2759938 A1 FR 2759938A1 FR 9702318 A FR9702318 A FR 9702318A FR 9702318 A FR9702318 A FR 9702318A FR 2759938 A1 FR2759938 A1 FR 2759938A1
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FR
France
Prior art keywords
board
mortises
notch
seat
tenon
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.)
Granted
Application number
FR9702318A
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French (fr)
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FR2759938B1 (en
Inventor
Christian Ponchon
Jean Albert Ponchon
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to FR9702318A priority Critical patent/FR2759938B1/en
Publication of FR2759938A1 publication Critical patent/FR2759938A1/en
Application granted granted Critical
Publication of FR2759938B1 publication Critical patent/FR2759938B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47DFURNITURE SPECIALLY ADAPTED FOR CHILDREN
    • A47D11/00Children's furniture convertible into other kinds of furniture, e.g. children's chairs or benches convertible into beds or constructional play-furniture
    • A47D11/02Chairs convertible into children's chairs
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C3/00Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/20Chairs or stools with vertically-adjustable seats
    • A47C3/34Chairs or stools with vertically-adjustable seats with pins coacting with holes or bolt-and-nut adjustment
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C4/00Foldable, collapsible or dismountable chairs
    • A47C4/02Dismountable chairs
    • A47C4/021Dismountable chairs connected by slotted joints
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C4/00Foldable, collapsible or dismountable chairs
    • A47C4/02Dismountable chairs
    • A47C4/024Dismountable chairs having integral back-rest and rear leg
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C4/00Foldable, collapsible or dismountable chairs
    • A47C4/02Dismountable chairs
    • A47C4/03Non-upholstered chairs, e.g. metal, plastic or wooden chairs
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47DFURNITURE SPECIALLY ADAPTED FOR CHILDREN
    • A47D1/00Children's chairs
    • A47D1/002Children's chairs adjustable
    • A47D1/004Children's chairs adjustable in height

Abstract

The manufacture of a height adjustable chair utilises a board (1), forming back, the top of which is drilled with mortises (8). The bottom is fitted by a fork system into a small board (3) placed perpendicularly. A seat(9) has a tenon (10) enabling it to be fixed into the back in one of the mortises. The bottom of the back and the top of the perpendicular board each have a notch (2,4) with a depth such that once fitted into each other the bottom of the two boards are at the same level. The notch at the top of the small board is inclined at about 102<o> and slightly set forward from the middle of the board. The bottom of the back and the seat each have a horizontal cut out (5,6) in the middle to provide chair stability.

Description

La présente invention concerne un dispositif de fabrication d'une chaise réglable en hauteur
Traditionnellement pour qu'une chaise soit réglable en hauteur, on emploi, soit un système de vis, soit des vérins, soit des entailles latérales . Le dossier est formé de plusieurs éléments et la fabrication de ces chaises est souvent complexe . Ces dispositifs nécessitent souvent des parties métalliques ou des vis apparents . Il y a le risque qu'un vis se desserre, qu'une entaille casse . Il y a en outre souvent plusieurs réglages à effectuer ( dossier et siège)
Le dispositif selon l'invention permet de remédier à ces inconvénients . On a en effet une chaise entièrement en bois, sans vis apparénts, simple à fabriquer et solide, avec un réglage très facile à effectuer . Le dispositif ne nuit pas à l'esthétique de la chaise . De plus le dossier permet un bon maintien du dos
Le dispositif comporte selon une première caractéristique une planche qui descend jusqu'au sol et forme à la fois le dossier et une des composantes du pied
Le bas de cette planche s'emboîte selon un système d'enfourchement dans une 2ème partie :une petite planche qui est placée à la perpendiculaire . Nous avons une 3ème partie : un plateau servant de siège qui est fixé directement au dossier par un système de tenon et de mortaises . Le fait qu'il y ait plusieurs mortaises (à des hauteurs différentes) percées dans le dossier permet de régler la hauteur du siège
Selon des modes particuliers de réalisation - la chaise pourra être réalisée en PVC - le plateau servant de siège peut avoir des formes différentes : rond, carré ... pourvu qu'il soit muni d'un tenon à l'arrière .
The present invention relates to a device for manufacturing a height-adjustable chair
Traditionally, for a chair to be adjustable in height, either a screw system, or jacks, or side notches are used. The backrest is made up of several elements and the manufacture of these chairs is often complex. These devices often require visible metal parts or screws. There is the risk that a screw will come loose, that a notch will break. There are also often several adjustments to be made (backrest and seat)
The device according to the invention overcomes these drawbacks. We have a chair entirely in wood, without visible screws, simple to manufacture and solid, with a very easy adjustment to carry out. The device does not affect the aesthetics of the chair. In addition, the backrest provides good back support
According to a first characteristic, the device comprises a board which descends to the ground and forms both the backrest and one of the components of the foot.
The bottom of this board fits according to a straddle system in a 2nd part: a small board which is placed perpendicular. We have a 3rd part: a tray serving as a seat which is fixed directly to the backrest by a system of tenons and mortises. The fact that there are several mortises (at different heights) drilled in the backrest allows the seat height to be adjusted.
According to particular embodiments - the chair may be made of PVC - the tray serving as a seat may have different shapes: round, square, etc. provided that it is provided with a tenon at the back.

- le haut du dossier peut avoir un contour de forme différente - la chaise peut avoir de petites dimensions pour servir plus particulièrement aux très jeunes enfants
Selon une variante non illustrée un second plateau plus grand que celui du siège pourra être inséré dans une des mortaises du bas pour poser les pieds
Les dessins annexés illustrent l'invention
La figure 1 représente de face, le dispositif de l'invention
La figure 2 représente le dispositif de l'invention avant montage
La figure 3 représente une vue de dessus du dispositif de l'invention
La figure 4 représente une vue de côté du dispositif de l'invention
La figure 5 représente une vue de dos du dispositif de l'invention
En référence à ces dessins, le dispositif comporte une planche (1) qui descend jusqu'au sol et dont le haut constitue le dossier et le bas constitue une partie du pied de la chaise . Le bas de cette planche (1) est percé en son milieu d'une entaille verticale rectangulaire (2) . Il constitue un axe du pied . Le 2ème axe est une petite planche (3) qui est placée perpendiculairement à la planche formant le dossier (1) Pour des raisons d'esthétique nous lui avons donné la forme d'un demi-disque
Le haut de la petite planche (3) est percé d'une entaille (4) rectangulaire légèrement oblique selon un angle d'environ 102 ". Cette entaille (4) est légèrement décalée vers l'avant par rapport au milieu la petite planche (3) afin que la chaise ne puisse pas tomber en arrière. L'entaille (2) du bas de la planche formant dossier (1) vient s'emboîter dans l'entaille (4) de la petite planche(3) Ces 2 parties sont fixées par de la colle . La hauteur l'entaille (2) de la planche (1) formant dossier est égale à la distance qui va du bas de la petite planche perpendiculaire (3)jusqu'au niveau du bas de l'entaille (4)de cette dernière . Ainsi, une fois assemblés, le bas de la planche formant dossier (1) et le bas de la petite planche (3) sont au même niveau
La légère inclinaison de l'entaille (4) de la petite planche(3) permettra au dossier (1) d'être légèrement incliné vers l'arrière . Cette inclinaison permettra la stabilité de la chaise
Pour que la chaise ne soit pas déséquilibrée par un sol qui ne serait pas totalement plane, on effectue en bas de la planche formant dossier (1) et en bas de la petite planche(3) une découpe (5 et 6 ) horizontale au milieu.
- the top of the backrest may have a contour of a different shape - the chair may have small dimensions to be used more particularly for very young children
According to a variant not shown, a second plate larger than that of the seat could be inserted into one of the lower mortises to put the feet on.
The accompanying drawings illustrate the invention
Figure 1 shows from the front, the device of the invention
FIG. 2 represents the device of the invention before assembly
Figure 3 shows a top view of the device of the invention
Figure 4 shows a side view of the device of the invention
FIG. 5 represents a rear view of the device of the invention
With reference to these drawings, the device comprises a board (1) which descends to the ground and whose top constitutes the backrest and the bottom constitutes part of the foot of the chair. The bottom of this board (1) is pierced in the middle of a rectangular vertical notch (2). It constitutes an axis of the foot. The 2nd axis is a small board (3) which is placed perpendicular to the board forming the backrest (1) For aesthetic reasons we have given it the shape of a half-disc
The top of the small plank (3) is pierced with a slightly oblique rectangular notch (4) at an angle of approximately 102 ". This notch (4) is slightly offset forward in relation to the middle of the small plank ( 3) so that the chair cannot fall backwards. The notch (2) at the bottom of the backing board (1) fits into the notch (4) of the small board (3) These 2 parts are fixed by glue. The height of the notch (2) of the board (1) forming the backrest is equal to the distance which goes from the bottom of the small perpendicular board (3) to the level of the bottom of the notch (4) of the latter. Thus, once assembled, the bottom of the backing board (1) and the bottom of the small board (3) are at the same level
The slight inclination of the notch (4) of the small board (3) will allow the backrest (1) to be inclined slightly backwards. This inclination will allow the stability of the chair
So that the chair is not unbalanced by a floor that is not completely flat, we make at the bottom of the backing board (1) and at the bottom of the small board (3) a cutout (5 and 6) horizontal in the middle .

Ainsi, seule une petite partie (7) à chaque extrémité touche le sol
Le dossier (1) est percé de plusieurs mortaises traversantes (8) horizontales et rectangulaires, arrondies sur les côtés . Ces mortaises (8) sont disposées les unes au dessus des autres, elles sont toutes parallèles . Elles sont suffisamment espacées pour que les parties qui sont entre ne cassent pas . A titre d'exemple non limitatif elles peuvent être espacées d'environ 5 cm . Ces mortaises (8) permettent la fixation du siège (9)
Ce dernier(9) est constitué d'un plateau à l'arrière duquel on aura découpé un tenon (10) dans toute son épaisseur . Ce tenon (10) est de même forme que les mortaises (8) du dossier (1) dans lesquelles il va s'emboîter . Le dossier (1) constitue donc l'unique support du siège (9) . Ce tenon (10) est de dimension légèrement inférieure à celle des mortaises (8) de façon à facilité l'introduction et pour que le siège (9) ne soit pas trop incliné vers le haut malgré l'inclinaison du dossier (1) . Ce tenon (10) a une longueur telle qu'une fois emboîté dans une mortaise(8), il dépassera derrière le dossier (1). Il suffit de sortir le tenon (10) d'une mortaise (8) et de le mettre dans une autre pour modifier la hauteur du siège (9)
Le tenon (10) peut être percé de part en part d'une entaille (11) horizontale permettant l'introduction d'une clavette(12) derrière le dossier (1) qui empêche le tenon (10) de ressortir de la mortaise (8) . Ceci permet d'approcher la chaise en tirant sur le siège (9) sans que celui-ci ne se déboîte .
Thus, only a small part (7) at each end touches the ground
The backrest (1) is pierced with several horizontal and rectangular through mortises (8), rounded on the sides. These mortises (8) are arranged one above the other, they are all parallel. They are sufficiently spaced so that the parts that are between do not break. By way of non-limiting example, they can be spaced approximately 5 cm apart. These mortises (8) allow the seat (9) to be fixed.
The latter (9) consists of a plate at the back of which a tenon (10) will have been cut out in its entire thickness. This tenon (10) is of the same shape as the mortises (8) of the backrest (1) in which it will fit. The backrest (1) therefore constitutes the only support for the seat (9). This tenon (10) is slightly smaller in size than that of the mortises (8) so as to facilitate the introduction and so that the seat (9) is not too inclined upwards despite the inclination of the backrest (1). This tenon (10) has a length such that once fitted into a mortise (8), it will protrude behind the backrest (1). It suffices to take the tenon (10) out of a mortise (8) and put it in another to modify the height of the seat (9)
The tenon (10) can be drilled right through a horizontal notch (11) allowing the introduction of a key (12) behind the backrest (1) which prevents the tenon (10) from coming out of the mortise ( 8). This makes it possible to approach the chair by pulling on the seat (9) without it disengaging.

A titre d'exemple non limitatif, les mortaises (8) pourront se situer entre 30 cm et 67 cm de haut
La présente invention est nous permet d'obtenir une chaise qui s'insère de façon harmonieuse dans un mobilier moderne . Nous avons en position haute, une chaise de bar ou une chaise pour asseoir un enfant à une table d'adultes, en position basse une chaise pour asseoir un petit enfant devant une table basse et en position intermédiaire une chaise ordinaire.
By way of non-limiting example, the mortises (8) may be between 30 cm and 67 cm high
The present invention allows us to obtain a chair which fits harmoniously into modern furniture. We have in the high position a bar chair or a chair to seat a child at an adult table, in the low position a chair to seat a small child in front of a low table and in the middle position an ordinary chair.

Claims (10)

REVENDICATIONS 1)Dispositif de fabrication d'une chaise réglable en hauteur par crémaillère caractérisé en ce qu'il comporte une planche (1) dont le haut est percé de mortaises (8) et le bas s'emboîte selon un système d'enfourchement dans une petite planche (3) placée perpendiculairement et un plateau (9) servant de siège qui possède un tenon (10) permettant de le fixer au dossier dans l'une des mortaises (8) 1) Device for manufacturing a chair adjustable in height by rack characterized in that it comprises a board (1) the top of which is pierced with mortises (8) and the bottom fits according to a system of straddling in a small board (3) placed perpendicularly and a plate (9) serving as a seat which has a tenon (10) allowing it to be fixed to the backrest in one of the mortises (8) 2)Dispositif selon la revendication 1 caractérisé en ce que le bas de la planche formant dossier (1) et le haut de la petite planche perpendiculaire (3) sont percées chacun d'une entaille (2 et 4) de profondeur telle qu'une fois emboîtées l'une dans l'autre le bas des 2 planches (1 et 3) est au même niveau 2) Device according to claim 1 characterized in that the bottom of the backing board (1) and the top of the small perpendicular board (3) are each pierced with a notch (2 and 4) of depth such that a once nested one inside the other, the bottom of the 2 boards (1 and 3) is at the same level 3)Dispositif selon la revendication 2 caractérisé en ce que l'entaille (4) du haut de la petite planche perpendiculaire (3) est incliné d'environ 102 et légèrement décalée à l'avant par rapport au milieu de la planche 3) Device according to claim 2 characterized in that the notch (4) of the top of the small perpendicular board (3) is inclined about 102 and slightly offset at the front relative to the middle of the board 4)Dispositif selon la revendication 1 ou la revendication 2 caractérisé en ce que le bas de la planche formant dossier(l) et le bas de la petite planche (3) ont chacun une découpe horizontale (5 et 6) au milieu assurant la stabilité de la chaise 4) Device according to claim 1 or claim 2 characterized in that the bottom of the backing board (l) and the bottom of the small board (3) each have a horizontal cutout (5 and 6) in the middle ensuring stability from the chair 5)Dispositif selon la revendication 1 caractérisé en ce que les mortaises (8) sont traversantes, horizontales, rectangulaires, arrondies sur les côtes 5) Device according to claim 1 characterized in that the mortises (8) are through, horizontal, rectangular, rounded on the sides 6)Dispositif selon la revendication 5 caractérisé en ce que les mortaises (8) sont disposées les unes au dessus des autres parallèlement et espacées suffisamment pour que les parties restantes ne cassent pas 6) Device according to claim 5 characterized in that the mortises (8) are arranged one above the other parallel and spaced sufficiently so that the remaining parts do not break 7)Dispositif selon la revendication 1 caractérisé en ce que le tenon (10)est situé à l'arrière du plateau servant de siège(9), il est découpé dans toute l'épaisseur du plateau, a une forme identique à celle des mortaises (8) et une dimension légèrement inférieure , il a une longueur telle qu'une fois emboîté il dépassera derrière la mortaise (8) 7) Device according to claim 1 characterized in that the tenon (10) is located at the rear of the plate serving as a seat (9), it is cut throughout the thickness of the plate, has a shape identical to that of the mortises (8) and a slightly smaller dimension, it has a length such that once nested it will protrude behind the mortise (8) 8)Dispositif selon la revendication 7 caractérisé en ce que le tenon (10) est percé d'une entaille horizontale (11) 8) Device according to claim 7 characterized in that the tenon (10) is pierced with a horizontal notch (11) 9)Dispositif selon la revendications 1 ou les revendications 7 et 8 caractérisé en ce qu'une clavette (12) s'emboîte dans l'entaille (11) du tenon (10). 9) Device according to claims 1 or claims 7 and 8 characterized in that a key (12) fits into the notch (11) of the tenon (10). 10)Dispositif selon la revendication 1 caractérisée en ce qu'un second plateau plus grand que celui du siège pourra être inséré dans une des mortaises du bas pour poser les pieds 10) Device according to claim 1 characterized in that a second plate larger than that of the seat can be inserted into one of the lower mortises to put the feet
FR9702318A 1997-02-21 1997-02-21 DEVICE FOR MANUFACTURING A CHAIR ADJUSTABLE IN HEIGHT BY RACK Expired - Fee Related FR2759938B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9702318A FR2759938B1 (en) 1997-02-21 1997-02-21 DEVICE FOR MANUFACTURING A CHAIR ADJUSTABLE IN HEIGHT BY RACK

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9702318A FR2759938B1 (en) 1997-02-21 1997-02-21 DEVICE FOR MANUFACTURING A CHAIR ADJUSTABLE IN HEIGHT BY RACK

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FR2759938A1 true FR2759938A1 (en) 1998-08-28
FR2759938B1 FR2759938B1 (en) 1999-04-16

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3038943A1 (en) * 2015-07-17 2017-01-20 Marcel Mathou FURNITURE ASSEMBLY ASSEMBLY DEVICE, AND FURNITURE ELEMENT COMPRISING SAME

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3181828A (en) * 1963-09-18 1965-05-04 Harold W Cramer Resting support
FR2333994A1 (en) * 1975-12-04 1977-07-01 Gayaud Andre Dry jointed sectional furniture - has primary members of plane panel form joined by simple or compound through mortice and tenon joints
US4225180A (en) * 1978-11-13 1980-09-30 Gillis Robert E Collapsible chair
GB2151473A (en) * 1983-11-25 1985-07-24 Paul Frank Peter Jedzinski Baby's high chair
WO1994028771A1 (en) * 1993-06-15 1994-12-22 Brio A/S A piece of furniture, especially a child's chair

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3181828A (en) * 1963-09-18 1965-05-04 Harold W Cramer Resting support
FR2333994A1 (en) * 1975-12-04 1977-07-01 Gayaud Andre Dry jointed sectional furniture - has primary members of plane panel form joined by simple or compound through mortice and tenon joints
US4225180A (en) * 1978-11-13 1980-09-30 Gillis Robert E Collapsible chair
GB2151473A (en) * 1983-11-25 1985-07-24 Paul Frank Peter Jedzinski Baby's high chair
WO1994028771A1 (en) * 1993-06-15 1994-12-22 Brio A/S A piece of furniture, especially a child's chair

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3038943A1 (en) * 2015-07-17 2017-01-20 Marcel Mathou FURNITURE ASSEMBLY ASSEMBLY DEVICE, AND FURNITURE ELEMENT COMPRISING SAME

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Publication number Publication date
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