EP0321420A1 - Mounting of an actuating lever for adjustable chairs - Google Patents

Mounting of an actuating lever for adjustable chairs Download PDF

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Publication number
EP0321420A1
EP0321420A1 EP88830525A EP88830525A EP0321420A1 EP 0321420 A1 EP0321420 A1 EP 0321420A1 EP 88830525 A EP88830525 A EP 88830525A EP 88830525 A EP88830525 A EP 88830525A EP 0321420 A1 EP0321420 A1 EP 0321420A1
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EP
European Patent Office
Prior art keywords
lever
slot
plate
mounting
lateral projection
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
EP88830525A
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German (de)
French (fr)
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EP0321420B1 (en
Inventor
Sergio Moreschi
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.)
Cofemo SpA
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Cofemo SpA
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Publication date
Application filed by Cofemo SpA filed Critical Cofemo SpA
Publication of EP0321420A1 publication Critical patent/EP0321420A1/en
Application granted granted Critical
Publication of EP0321420B1 publication Critical patent/EP0321420B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/20—Chairs or stools with vertically-adjustable seats
    • A47C3/30—Chairs or stools with vertically-adjustable seats with vertically-acting fluid cylinder

Definitions

  • the present invention relates to chairs or armchairs with a seat and / or a backrest provided with a support device with variable position, and more particularly a system for mounting a tilting lever intended to control the device which regulates the position of the chair or armchair.
  • the seat is fixed on a plate applied to the top of a stretchable upright fixed to the support base and normally consisting of a gas spring or other equivalent spring device.
  • the object of the invention is therefore to solve these problems and to eliminate the drawbacks and disadvantages of the embodiments proposed up to now.
  • the invention provides for quick and easy mounting of the pivoting lever on the support plate without the aid of special tools and without any complicated operation.
  • the tilting lever is simply introduced into a transverse hole drilled in a rotating cylinder which serves as a rotating pin, previously mounted on the support plate of the chair.
  • the tilting lever on one side and the transverse hole of the pin on the other side have complementary sections for coupling without the lever being able to rotate in the aforementioned hole, while being able to tilt with the pin around its axis.
  • the assembly between the pin and the rocking lever is ensured, in the axial direction, by a part of the adjoining plate to the transverse hole of the pin and intended to intercept at least one projection of the lever to prevent the output and uncoupling of the pin.
  • the mounting system which forms the object of the invention is therefore characterized in that the seat support plate is provided with a T-slot, that on this plate, near the above-mentioned T-slot, an element cylindrical functioning as a pin and having a transverse hole with at least one transverse hole with at least one radial recess, and in that the rocking lever has at least one lateral projection corresponding to the radial recess of the cylindrical element, the lever being conjugated, by threading, with the transverse hole of the cylindrical element through the widest part of the T-slot, the sides of the narrow part of the T-slot intercepting the lateral projection to prevent uncoupling of the lever.
  • Fig. 1 of the drawing the number 10 indicates the base of a chair or an armchair on which is fixed the upright 11 for example in the form of a gas spring or other equivalent device and extendable in height, its top carrying a plate d support 12 for the seat 13 and also for the backrest 14, the extension of the upright 11 being controlled, in a known manner, by a lever 15.
  • the upright 11 for example in the form of a gas spring or other equivalent device and extendable in height, its top carrying a plate d support 12 for the seat 13 and also for the backrest 14, the extension of the upright 11 being controlled, in a known manner, by a lever 15.
  • the rocking lever 15 is mounted on the plate 12 by means of a cylindrical element 16 having the function of a pin. More specifically, the plate 12 has, in a suitable position, a T-slot, opposite the which and inside the plate 12 pivots the cylindrical element 16. The latter has, to be, when it is mounted, in correspondence with the T-slot of the plate 12, a transverse hole 18 with a radial recess 19. The cylindrical element 16 is stopped on the plate 12 by means of a jumper 22, the eyelet 21 of which is in correspondence with the hole 18 of the cylindrical element 16.
  • the tilting lever 15 has a section similar to that of the transverse hole 18 of the cylindrical element 16 and it is provided with at least one lateral projection 22 intended to be combined with the radial hollow of the above-mentioned hole 18.
  • the T-slot 17 of the plate 12 comprises a narrow part having a width slightly greater than the section of the lever 15 and a wider part to allow the passage of the lever 15 with its lateral projection (s) 22 .
  • the lever 15 can be threaded, through the slot 17, into the hole 18 of the cylindrical element 16, until one of its lateral projections 22 is inserted into the radial recess 19 of the hole 18 and in such a way that the end of the lever mates with the device 11 to be controlled.
  • the lever 15 and the cylindrical element 16 are coupled and they can be moved angularly around the axis of the pin.
  • the lever can be moved in the narrow part of the T-slot 17, the sides of which will intercept the lateral projection (s) 22 to prevent the lever from moving and therefore the disassembly of the lever, even allowing the operating movements of the lever itself. even.
  • rocking lever intended to control a device extendable in height to raise or lower the seat; however, the mounting system object of the invention can be used advantageously and without departing from its purpose, for any other rocking lever intended to actuate different devices provided for the adjustment of chairs or armchairs and also for other applications and functions .

Landscapes

  • Chairs Characterized By Structure (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Abstract

This is a system for mounting a tilting lever (15) for controlling a spring device intended for positioning a chair or an armchair, according to which the tilting lever (15) has at least one lateral projection (22), a revolving cylindrical element (16) being applied to the support plate of the seat, this element acting as a pin and being equipped with a transverse hole (18) having a radial hollow (19); the lever passes through the widest part of a T-shaped slot (17) cut into the abovementioned plate in order to stop in the transverse hole (18) of the pin (16), the narrow parts of the T-shaped slot (17) stopping on the lateral projection (22) in order to prevent the exit of the lever. <IMAGE>

Description

La présente invention concerne les chaises ou fauteuils avec un siège et/ou un dossier munis d'un dispositif de support à position variable, et plus en particulier un système de montage d'un levier basculant destiné à commander le dispositif qui règle la position de la chaise ou du fauteuil.The present invention relates to chairs or armchairs with a seat and / or a backrest provided with a support device with variable position, and more particularly a system for mounting a tilting lever intended to control the device which regulates the position of the chair or armchair.

Comme on sait bien, dans les chaises ou fau­teuils du type susmentionné, le siège est fixé sur une plaque appliquée au sommet d'un montant exten­sible en hauteur fixé à la base d'appui et normale­ment constitué d'un ressort à gaz ou d'autre dispo­sitif à ressort équivalent.As is well known, in chairs or armchairs of the aforementioned type, the seat is fixed on a plate applied to the top of a stretchable upright fixed to the support base and normally consisting of a gas spring or other equivalent spring device.

L'extension du montant destiné à l'ajustage de l'hauteur du siège est réglé par un levier basculant et pivotant dans la plaque d'appui ou dans un organe lui connecté pour pouvoir agir sur les moyens de blocage/déblocage du dispositif de réglage. Jusqu'à maintenant plusieurs systèmes pour le montage du le­vier ont été proposé, mais ils sont tous bien com­pliqués et coûteux, attendu qu'ils demandent des opérations et des outils spéciaux et présentent aussi des problèmes à l'assemblage.The extension of the amount intended for the adjustment of the height of the seat is adjusted by a rocking and pivoting lever in the support plate or in a member connected thereto in order to be able to act on the means of locking / unlocking of the adjustment device. Until now, several systems for mounting the lever have been proposed, but they are all very complicated and expensive, since they require special operations and tools and also present assembly problems.

Le but de l'invention est partant ce de resou­dre ces problèmes et d'éliminer les inconvénients et les désavantages des réalisations proposés jusqu'à maintenant.The object of the invention is therefore to solve these problems and to eliminate the drawbacks and disadvantages of the embodiments proposed up to now.

Dans ce but l'invention prévoit un montage aisé et rapide du levier pivotant sur la plaque d'appui sans l'aide d'outils particuliers et sans aucune opération compliquée. En effet, selon l'invention le levier basculant est simplement introduit dans un trou transversal percé dans un cylindre tournant qui sert de goupille tournante, préalablement monté sur la plaque d'appui de la chaise. Le levier basculant d'un côté et le trou transversal de la goupille de l'autre côté ont des sections complémentaires pour s'accoupler sans que le levier puisse tourner dans le trou susdit, tout en pouvant basculer avec la goupille autour de son axe. L'assemblage entre la goupille et le levier basculant est assuré, en di­rection axiale, par une partie de la plaque attenant au trou transversal de la goupille et destinée à in­tercepter au moins une saillie du levier pour en em­pêcher la sortie et le désaccouplement de la gou­pille.For this purpose, the invention provides for quick and easy mounting of the pivoting lever on the support plate without the aid of special tools and without any complicated operation. Indeed, according to the invention the tilting lever is simply introduced into a transverse hole drilled in a rotating cylinder which serves as a rotating pin, previously mounted on the support plate of the chair. The tilting lever on one side and the transverse hole of the pin on the other side have complementary sections for coupling without the lever being able to rotate in the aforementioned hole, while being able to tilt with the pin around its axis. The assembly between the pin and the rocking lever is ensured, in the axial direction, by a part of the adjoining plate to the transverse hole of the pin and intended to intercept at least one projection of the lever to prevent the output and uncoupling of the pin.

Le système de montage qui forme l'objet de l'invention est donc caractérisé en ce que la plaque d'appui du siège est munie d'une fente en T, que sur cette plaque, près de la fente en T susdite, un élé­ment cylindrique fonctionnant comme une goupille et ayant un trou transversal avec au moins un trou transversal avec au moins un creux radial, et en ce que le levier basculant présente au moins une sail­lie latérale en correspondance au creux radial de l'élément cylindrique, le levier étant conjugué, par enfilement, avec le trou transversal de l'élément cylindrique à travers de la partie la plus large de la fente en T, les côtés de la partie étroite de la fente en T interceptant la saillie latérale pour em­pêcher le désaccouplement du levier.The mounting system which forms the object of the invention is therefore characterized in that the seat support plate is provided with a T-slot, that on this plate, near the above-mentioned T-slot, an element cylindrical functioning as a pin and having a transverse hole with at least one transverse hole with at least one radial recess, and in that the rocking lever has at least one lateral projection corresponding to the radial recess of the cylindrical element, the lever being conjugated, by threading, with the transverse hole of the cylindrical element through the widest part of the T-slot, the sides of the narrow part of the T-slot intercepting the lateral projection to prevent uncoupling of the lever.

Un exemple de réalisation pratique de l'inven­tion est illustré dans le dessin ci-joint et il sera décrit ci-dessous d'une manière plus détaillée.A practical embodiment of the invention is illustrated in the attached drawing and will be described below in more detail.

En ce dessin:

  • la Fig. 1 montre un exemple de chaise dont l'hauteur est ajustable;
  • la Fig. 2 montre une veu perspective d'une partie de la plaque du siège, de la goupille et du levier basculant séparés l'un de l'autre;
  • la Fig. 3 montre une vue perspective du levier monté sur la plaque, la vue étant à l'intérieur de la plaque;
  • la Fig. 4 montre une section obtenue selon les flêches IV-IV en Fig. 3;
  • la Fig. 5 montre une autre section obtenue selon les flêches V-V en Fig. 4; et
  • la Fig. 5 montre une vue selon les flêches VI-VI en Fig. 5.
In this drawing:
  • Fig. 1 shows an example of a chair whose height is adjustable;
  • Fig. 2 shows a perspective view of part of the seat plate, of the pin and of the rocking lever separated from each other;
  • Fig. 3 shows a perspective view of the lever mounted on the plate, the view being inside the plate;
  • Fig. 4 shows a section obtained according to arrows IV-IV in FIG. 3;
  • Fig. 5 shows another section obtained according to the arrows VV in FIG. 4; and
  • Fig. 5 shows a view according to the arrows VI-VI in FIG. 5.

En Fig. 1 du dessin le nombre 10 indique la base d'une chaise ou d'un fauteuil sur laquelle est fixé le montant 11 par exemple sous forme d'un res­sort à gaz ou autre dispositif équivalent et exten­sible en hauteur, son sommet portant une plaque d'appui 12 pour le siège 13 et aussi pour le dossier 14, l'extension du montant 11 étant contrôlée, d'une manière connue, par un levier 15.In Fig. 1 of the drawing the number 10 indicates the base of a chair or an armchair on which is fixed the upright 11 for example in the form of a gas spring or other equivalent device and extendable in height, its top carrying a plate d support 12 for the seat 13 and also for the backrest 14, the extension of the upright 11 being controlled, in a known manner, by a lever 15.

Selon l'invention, le levier basculant 15 est monté sur la plaque 12 au moyen d'un élément cylin­drique 16 ayant la fonction d'une goupille. Plus précisément, la plaque 12 présente, dans une posi­tion appropriée, une fente en T, vis-àa-vis de la­ quelle et à l'intérieur de la plaque 12 pivote l'é­lément cylindrique 16. Ce dernier présente, pour se trouver, quand il est monté, en correspondance à la fente en T de la plaque 12, un trou transversal 18 avec un creux radial 19. L'élément cylindrique 16 est arrêté sur la plaque 12 au moyen d'un cavalier 22 dont l'oeillet 21 se trouve en correspondance au trou 18 de l'élément cylindrique 16.According to the invention, the rocking lever 15 is mounted on the plate 12 by means of a cylindrical element 16 having the function of a pin. More specifically, the plate 12 has, in a suitable position, a T-slot, opposite the which and inside the plate 12 pivots the cylindrical element 16. The latter has, to be, when it is mounted, in correspondence with the T-slot of the plate 12, a transverse hole 18 with a radial recess 19. The cylindrical element 16 is stopped on the plate 12 by means of a jumper 22, the eyelet 21 of which is in correspondence with the hole 18 of the cylindrical element 16.

Quant au levier basculant 15, il présente une section analogue à celle du trou transversal 18 de l'élément cylindrique 16 et il est muni d'au moins une saillie latérale 22 destinée à se conjuguer avec le creux radial du trou 18 susdit.As for the tilting lever 15, it has a section similar to that of the transverse hole 18 of the cylindrical element 16 and it is provided with at least one lateral projection 22 intended to be combined with the radial hollow of the above-mentioned hole 18.

Enfin, il faut remarquer que la fente en T 17 de la plaque 12 comprend une partie étroite ayant une largeur un peu supérieure à la section du levier 15 et una partie plus large pour permettre le passa­ge du levier 15 avec sa ou ses saillies latérales 22.Finally, it should be noted that the T-slot 17 of the plate 12 comprises a narrow part having a width slightly greater than the section of the lever 15 and a wider part to allow the passage of the lever 15 with its lateral projection (s) 22 .

Pour monter le levier 15 il faut tourner l'élé­ment cylindrique 16 ou la goupille en utilisant, par exemple, l'extrémité du levier lui-même, jusqu'à ce que son trou transversal va se trouver en ligne à la partie la plus large de la fente en T de la plaque 12.To mount the lever 15 you have to turn the cylindrical element 16 or the pin using, for example, the end of the lever itself, until its transverse hole is in line with the widest part of the T-slot of the plate 12.

En cette situation, le levier 15 peut être en­filé, à travers la fente 17, dans le trou 18 de l'élément cylindrique 16, jusqu'à ce que une des ses saillies latérales 22 s'enfonce dans le creux radial 19 du trou 18 et de telle manière que l'extrémité du levier s'accouple avec le dispositif 11 à commander. A ce point, le levier 15 et l'élément cylindrique 16 sont couplés et on peut les déplacer angulairement autour de l'axe de la goupille. Partant, le levier peut être déplacé dans la partie étroite de la fente en T 17, dont les côtés vont intercepter la ou les saillies latérales 22 pour empêcher le défilement et donc le démontage du levier, même en permettant les déplacements opératoires du levier lui-même.In this situation, the lever 15 can be threaded, through the slot 17, into the hole 18 of the cylindrical element 16, until one of its lateral projections 22 is inserted into the radial recess 19 of the hole 18 and in such a way that the end of the lever mates with the device 11 to be controlled. At this point, the lever 15 and the cylindrical element 16 are coupled and they can be moved angularly around the axis of the pin. As a result, the lever can be moved in the narrow part of the T-slot 17, the sides of which will intercept the lateral projection (s) 22 to prevent the lever from moving and therefore the disassembly of the lever, even allowing the operating movements of the lever itself. even.

Dans la description ci-dessus référence a été fait à un levier basculant destiné à commander un dispositif extensible en hauteur pour soulever ou abaisser le siège; cependant, le système de montage objet de l'invention peut être utilisé advantageuse­ment et sans sortir de son but, pour tout autre le­vier basculant destiné à actionner des dispositifs différents prévus pour le réglage des chaises ou des fauteuils et aussi pour des autres applications et fonctions.In the description above reference has been made to a rocking lever intended to control a device extendable in height to raise or lower the seat; however, the mounting system object of the invention can be used advantageously and without departing from its purpose, for any other rocking lever intended to actuate different devices provided for the adjustment of chairs or armchairs and also for other applications and functions .

Claims (3)

1^ ) Système de montage d'un levier basculant sur un plaque d'appui et destiné en particulier aux chaises ou fauteuils ayant un siège et/ou un dossier munis d'un dispositif de positionnement commandé par le levier susmentionné, caractérisé en ce que la plaque d'appui (12) du siège est munie d'une fente en T (17) et que sur la plaque susdite, dans la zone conprenant la fente en T (17), est pivoté un élément tournant cylindrique (16) avec fonction de goupille, cet élément (16) présentant un trou transversal (18) avec au moins un creux radial (19) et en ce que le levier basculant présente au moins une saillie laté­rale (22) en correspondance au creux radial (19) du trou transversal (18) de l'élément cylindrique (16), le levier (15) étant conjugué, par enfilement, avec le trou transversal de l'élément cylindrique (16) à travers la partie plus large de la fente en T (17) de la plaque (12), les côtés de la partie plus étroite de la fente en T (17) interceptant en suite la saillie latérale (22) pour empêcher la sortie du levier.1 ^) System for mounting a lever tilting on a support plate and intended in particular for chairs or armchairs having a seat and / or a backrest provided with a positioning device controlled by the abovementioned lever, characterized in that the seat support plate (12) is provided with a T-slot (17) and that on the aforementioned plate, in the area comprising the T-slot (17), is pivoted a cylindrical rotating element (16) with pin function, this element (16) having a transverse hole (18) with at least one radial recess (19) and in that the rocking lever has at least one lateral projection (22) corresponding to the radial recess (19) of the transverse hole (18) of the cylindrical element (16), the lever (15) being conjugated, by threading, with the transverse hole of the cylindrical element (16) through the wider part of the T-slot (17 ) of the plate (12), the sides of the narrower part of the T-slot (17) subsequently intercepting the lateral projection (22 ) to prevent the lever from coming out. 2^ ) Système de montage d'un levier basculant selon la revendication 1), où l'élément cylindrique (16) servant de goupille est arrêté sur la plaque (12) au moyen d'un cavalier (20) avec une fente (21) pour le passage du levier basculant (15).2 ^) mounting system of a tilting lever according to claim 1), wherein the cylindrical element (16) serving as a pin is stopped on the plate (12) by means of a jumper (20) with a slot (21) for the passage of the rocking lever (15). 3^ ) Système de montage d'un levier basculant selon la revendication 1), où la partie plus large de la fente en T (17) dans la plaque d'appui (12) a une largeur de passage plus grande de la section du levier (15) au niveau de sa saillie latérale (22), tandis que la largeur de passage de la partie étroi­te de cette fente en T (17) est à peine supérieure à la section du levier susdit, de manière qu'au moins un de ses côtés puisse intercepter la saillie laté­rale (22) quand elle se trouve dans le creux corre­spondant du trou de l'élément cylindrique (16).3 ^) system for mounting a tilting lever according to claim 1), wherein the wider part of the T-slot (17) in the support plate (12) has a wider passage width of the section of the lever (15) at its lateral projection (22), while the passage width of the narrow part of this T-slot (17) is barely greater than the cross-section of the abovementioned lever, so that at least one on its sides can intercept the lateral projection (22) when it is in the corresponding hollow of the hole of the cylindrical element (16).
EP88830525A 1987-12-15 1988-12-07 Mounting of an actuating lever for adjustable chairs Expired - Lifetime EP0321420B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT05263/87A IT1220093B (en) 1987-12-15 1987-12-15 MOUNTING SYSTEM OF A SWING LEVER FOR THE CONTROL OF A POSITIONING DEVICE FOR A CHAIR OR ARMCHAIR
IT526387 1987-12-15

Publications (2)

Publication Number Publication Date
EP0321420A1 true EP0321420A1 (en) 1989-06-21
EP0321420B1 EP0321420B1 (en) 1992-10-14

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ID=11120077

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88830525A Expired - Lifetime EP0321420B1 (en) 1987-12-15 1988-12-07 Mounting of an actuating lever for adjustable chairs

Country Status (4)

Country Link
EP (1) EP0321420B1 (en)
CA (1) CA1297772C (en)
DE (1) DE3875330D1 (en)
IT (1) IT1220093B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7147471B2 (en) 2000-12-08 2006-12-12 3M Espe Ag Use of moulding compounds for producing treatment devices

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2836666A1 (en) * 1978-08-22 1980-03-06 Suspa Federungstech DEVICE FOR FASTENING CHAIR OR TABLE COLUMNS TO THE UNDER SIDE OF CHAIR OR TABLE TOP OR THE LIKE.
CH619604A5 (en) * 1977-08-25 1980-10-15 Fehlbaum & Co Apparatus for adjusting the seat height on a swivel chair

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH619604A5 (en) * 1977-08-25 1980-10-15 Fehlbaum & Co Apparatus for adjusting the seat height on a swivel chair
DE2836666A1 (en) * 1978-08-22 1980-03-06 Suspa Federungstech DEVICE FOR FASTENING CHAIR OR TABLE COLUMNS TO THE UNDER SIDE OF CHAIR OR TABLE TOP OR THE LIKE.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7147471B2 (en) 2000-12-08 2006-12-12 3M Espe Ag Use of moulding compounds for producing treatment devices

Also Published As

Publication number Publication date
DE3875330D1 (en) 1992-11-19
IT8705263A0 (en) 1987-12-15
IT1220093B (en) 1990-06-06
CA1297772C (en) 1992-03-24
EP0321420B1 (en) 1992-10-14

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