FR2653645A1 - Mechanical telescopic underframe [for table, workbench etc.] - Google Patents

Mechanical telescopic underframe [for table, workbench etc.] Download PDF

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Publication number
FR2653645A1
FR2653645A1 FR8914070A FR8914070A FR2653645A1 FR 2653645 A1 FR2653645 A1 FR 2653645A1 FR 8914070 A FR8914070 A FR 8914070A FR 8914070 A FR8914070 A FR 8914070A FR 2653645 A1 FR2653645 A1 FR 2653645A1
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France
Prior art keywords
duct
pinion
chassis
slides
column
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Granted
Application number
FR8914070A
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French (fr)
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FR2653645B1 (en
Inventor
Nourry Heirick Georges Robert
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NOURRY HEIRICK
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NOURRY HEIRICK
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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B9/00Tables with tops of variable height
    • A47B9/04Tables with tops of variable height with vertical spindle
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B17/00Writing-tables
    • A47B17/02Writing-tables with vertically-adjustable parts
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B9/00Tables with tops of variable height
    • A47B9/04Tables with tops of variable height with vertical spindle
    • A47B2009/043Tables with tops of variable height with vertical spindle with means connecting the spindles of the various legs

Landscapes

  • Legs For Furniture In General (AREA)

Abstract

The invention relates to a telescopic underframe that can contribute to the making of work benches and domestic tables in cases where it would be desirable for the horizontal surface to be adjustable to different heights in order to permit a variety of uses in a particular or professional field. This underframe consists of several telescopic pillars (1) and a horizontal part containing the mechanism 5, 6, the complete system being operated by a crank (10) which distributes the drive to the different pillars.

Description

La présente invention concerne un dispositif mécanique realisant un piétement télescopique de mobilier qui permet l'élévation dans l'espace de la surface horizontale supportée par le piètement. The present invention relates to a mechanical device realizing a telescopic base of furniture which allows the elevation in space of the horizontal surface supported by the base.

Grès souvent,certains procédés ont recours à des mécanrs- mes qui obligent l'utilisateur a executer des manipulations fastidieuses.Parfois,le volume à l'intèrieur de l'empatement est occupe par une partie du mécanisme,ce qui empêche une personne normalement constituéede s'asseoir confortablement à moins que la surface

Figure img00010001

soit superieure à celle que le piètement occupe au sol.Often, certain processes use mechanisms which force the user to carry out tedious manipulations. Sometimes, the volume inside the wheelbase is occupied by a part of the mechanism, which prevents a person normally consisting of sit comfortably unless the surface
Figure img00010001

is greater than that which the base occupies on the ground.

La presente invention permet de remedier en grande partie å ces inconvénients d'utilisation et par une simple mise en action d'une manivelle, elle permet de situer la surface horizontale du piètement à n'importe qu'elle hauteur dans les limites qu'autorise la course du mécanisme des colonnes constituant la partie telescopique du piètement,
Ce piètement est contitue de plusieurs colonnes de section carrée et d'un chassis horizontal.
The present invention makes it possible to largely remedy these drawbacks of use and, by simply actuating a crank, it makes it possible to locate the horizontal surface of the base at any height within the limits authorized. the stroke of the mechanism of the columns constituting the telescopic part of the base,
This base is made up of several square section columns and a horizontal frame.

Un premier conduit de section carrée (1)reçoit à l'inter- ieur et sur chacune de ses paroies une coulisse à billes(2), dans le sens de sa longueur. Les quatre coulisses redoivent sur leur partie extractible du premier conduit un autre conduit de section carrée (3)de dimensions infèrieures qui se fixe sur chacune d'entre elles.Les coulisses ont pour fonction de maintenir en ligne les deux conduits de section carrée pendant la trajectoire du conduit infèrieur et de faire en sorte qu'il y ait le moins possible de flexibilité de la colonne compte tenu de la résistance mecanique des matériaux employés.Le conduit exterieur de la colonne va faire corps dans son extremité superieure au chassis rigide oui constitue la partie horizontale du piètement.Le conduit de section carreeinferieur (3) reçoit dans sa partie supérieure un bouchon erce dans l'axe duquel se trouve un écrou carre à pas trapé- zoidal(4).Sur le chassis horizontal est fixé dans l'axe de de la colonne un palier à billes surmonté d'un pignon(5) au travèrs duquel prend naissance une vis sans fin à pas trapézoidal(6)qui traverse le palier en y étant fixée et va rejoindre son écrou en tete du conduit infèrieur(4) grâce auquel en fonction du sens de rotation du pignon une èxtraction ou une rétraction du conduit inférieur est obtenue. A first duct of square section (1) receives inside and on each of its walls a ball bearing slide (2), in the direction of its length. The four slides return on their extractable part of the first duct another square section duct (3) of smaller dimensions which is fixed on each of them. The slides have the function of keeping the two square section ducts in line during the trajectory of the lower duct and to ensure that there is the least possible flexibility of the column taking into account the mechanical resistance of the materials used. The outer duct of the column will be integral in its upper end with the rigid chassis yes constitutes the horizontal part of the base. The lower cross section duct (3) receives in its upper part a solid plug in the axis of which is a square nut with trapezoidal pitch (4). On the horizontal chassis is fixed in the axis of the column a ball bearing surmounted by a pinion (5) through which arises an endless screw with trapezoidal pitch (6) which crosses the bearing while being attached to it and will join its nut at the head of the lower duct (4) by which, depending on the direction of rotation of the pinion, an extraction or retraction of the lower duct is obtained.

Au centre du chassis est installé un pignon(7)(d'un diametre superieur à celui des pignons en tête des colonnes afin d'obtenir une démultiplication au service du couple) faisant corps et émèrgeant d'un renvoi d'angle situé dans le chassis (8). L'extremité émètrice de l'arbre d'attaque horizontal du renvoi d'angle est maintenue en bordure du chassis par un pa- lier sabot(9) qui offre vers l'exterieur une entrée carree permettant l'introduction d'une manivelle(10). In the center of the chassis is installed a pinion (7) (of a diameter greater than that of the pinions at the head of the columns in order to obtain a reduction in the service of the couple) forming a body and emerging from a bevel gear located in the chassis (8). The emitting end of the horizontal drive shaft of the bevel gear is held at the edge of the chassis by a shoe bearing (9) which offers a square entry towards the outside allowing the introduction of a crank ( 10).

La transmission de l'energie du pignon central aux pignons en tete des colonnes est assurée par une chaine sans fin a rouleaux(11) et la tension de cette chaine est obtenue par un tendeur à billes sur chaque brin mou(12).Ainsi,l'ensemble supérieur du piètement stélève,les parties inferieures poussant sur le sol; Les glissières sont munies de butees en caoutchouc qui signalent les fins de courses. The transmission of energy from the central pinion to the pinions at the head of the columns is ensured by an endless chain with rollers (11) and the tension of this chain is obtained by a ball tensioner on each soft strand (12). the upper whole of the stele base, the lower parts pushing on the ground; The slides are fitted with rubber stops which signal the end of the runs.

D'autre part,afin de permettre à la chaine de bien se pre- senter et de bien s'engager sur les differents pignons, il pourra entre prévu de placer des glissieres(13) sous la chaine aux differents points strategiques afin de soulager son effort dû a son poids et à sa trajectoire entre deux pignons. On the other hand, in order to allow the chain to present itself well and to engage well on the different sprockets, it may between planned to place slides (13) under the chain at different strategic points in order to relieve its effort due to its weight and its trajectory between two pinions.

L'extremité basse de chaque colonne est munie d'un sabot mise à vis qui permet la mise à niveau de l'ensemble(14). The lower end of each column is provided with a screwed shoe which allows the leveling of the assembly (14).

Ce piètement peut etre réalisé a différentes echelles et il est possible de le concevoir avec un plus grand nombre de colonnes.ta puissance de la transmission pourra etre augmen tée en fonction de la charge à soulever et de l'utilisation souhaitée. En outre,selon les exigences de l'utilisateur, l'energie motrice du mécanisme peut devenir electrique, il suffira d'installer un moteur dans le chassis couple au pignon central en choisissant un couple approprié afin d'obtenir le meilleur rendement. Il sera prevu des interrupteurs de fins de courses interrompant l'alimentation electrique en renversant celle-ci. APPICATIONS INDUSTRIELLES:Tables de tra

Figure img00020001

vail,reception de convoyeurs, marine de plaisance, sieges demobi@er. This base can be produced at different scales and it is possible to design it with a larger number of Columns. The power of the transmission can be increased depending on the load to be lifted and the desired use. In addition, according to the user's requirements, the driving energy of the mechanism can become electric, it will suffice to install a motor in the chassis torque to the central pinion by choosing an appropriate torque in order to obtain the best efficiency. Limit switches will be provided, interrupting the electrical supply by reversing it. INDUSTRIAL APPLICATIONS: Work tables
Figure img00020001

vail, reception of conveyors, pleasure craft, demobi @ er seats.

Claims (4)

REVENDICATIONS. CLAIMS. Sur le chassis horizontal est fixé dans l'axe de chaque colonne un palier à billes surmonte d'un pignon(5) au travers duquel prend naissance une vis sans fin à pas trapézoidal(6) qui traverse le palier en y étant fixéeet va rejoindre son écrou en tete de conduit inferieur(4) grâce auquel en fonction du sens de la rotation du pignon,une une extraction ou une retraction du conduit inferieur est obtenue.On the horizontal frame is fixed in the axis of each column a ball bearing surmounted by a pinion (5) through which is born an endless screw with trapezoidal pitch (6) which crosses the bearing while being fixed there and will join its nut at the head of the lower duct (4) by means of which, depending on the direction of rotation of the pinion, extraction or retraction of the lower duct is obtained. un premier conduit de section carre (1)/reçoit à l'interieur et sur chacune de ses parois une coulisse à billes(2) dans le sens de sa longueur,les quatre coulisses reçoivent sur leur partie extractible du premier conduit un autre conduit de section carree de dimensions inferieures qui se fixe sur chacune d'entre elles(3),les coulisses ont pour fonction de maintenir en ligne les deux conduits pendant la trajectoire du conduit inferieur et de faire en sorte qu'il y est le moins possible de flexibilite de la colonne compte tenu de la resistance mecanique des materiaux employes, le conduit exterieur de la colonne va faire corps dans son extremite superieure au chassis rigide qui constitue la partie horizontale du pietement,le conduit de section carrée inferieur (3)recoit dans sa partie superieure un bouchon percé dans l'axe duquel se trouve un écrou carré à pas trapezoidal(4),  a first square section duct (1) / receives inside and on each of its walls a ball bearing (2) in the direction of its length, the four slides receive on their extractable part of the first duct another duct square section of lower dimensions which is fixed on each of them (3), the slides have the function of keeping the two ducts in line during the trajectory of the lower duct and ensuring that there is as little as possible flexibility of the column taking into account the mechanical resistance of the materials used, the external conduit of the column will form a body in its upper end to the rigid frame which constitutes the horizontal part of the base, the conduit of lower square section (3) receives in its upper part a plug pierced in the axis of which is a square nut with trapezoidal pitch (4),
Figure img00030001
Figure img00030001
1)Piètement telescopique de mobilier caract erise en ce qu'il comporte en combinaison: 1) Telescopic base of furniture characterized in that it comprises in combination:
2)Piétement télescopique de mobilier selon la revendication 1 caracterisé en ce que sur le chassis est installé un pignon(7)d'un diametre superieur à celui des pignons en tete des colonnes afin d'obtenir une démultiplication faisant corps et emergeant d'un renvoi d'angle situe dans le chassis (8),l'extremité émetrice de l'arbre d'attaque horizontal du renvoi d'angle est maintenue en bordure du chassis par un palier sabot(9)qui offre vers l'exterieur une entrée carrée permettant l'introduction d'une manivelle(10), la transmission de l'énergie du pignon central aux pignons en tête des colonnes est assurée par une chaine sans fin à rouleaux(11) et la tension de cote chaine est obtenue par un tendeur à billes sur chaque brin mou(12).ainsi.l'ensemble 2) telescopic legs of furniture according to claim 1 characterized in that on the chassis is installed a pinion (7) of a diameter greater than that of the pinions at the head of the columns in order to obtain a reduction in body and emerging from a angle gear located in the chassis (8), the emitting end of the horizontal drive shaft of the angle gear is held at the edge of the chassis by a shoe bearing (9) which offers an entrance to the outside square allowing the introduction of a crank (10), the transmission of energy from the central pinion to the pinions at the head of the columns is ensured by an endless chain with rollers (11) and the chain dimension tension is obtained by a ball tensioner on each soft strand (12).
Figure img00030002
Figure img00030002
superieur du pietement s'eleve,les parties/poussant sur le sol;Tes coulisses sont munies de butées en caoutchouc qui signalent fins '0 courses.  upper leg is raised, the parts / pushing on the ground; Your slides are provided with rubber stops which signal end '0 races.
3)Piètement télescopique de mobilier selon les revendica tions 1 et 2 caracterisé ce que afin de permettre à la chaine de.bien se presenter et de bien s'engager sur les differents pignons, il est prevu'de placer des glissieres(13) sous cette chaine aux differents points strategiques afin de soulager son effort dû à son poids et à sa trajectoire entre deux pignons, et en I'extremité basse de chaquë colonne est munie d'un sabot verin à vis qui permet la mise å niveau de l'ensemble(14).  3) Telescopic legs of furniture according to claims 1 and 2, characterizing that in order to allow the chain to come out well and to engage properly on the different gables, it is planned to place slides (13) under this chain at the various strategic points in order to relieve its effort due to its weight and its trajectory between two pinions, and at the bottom end of each column is provided with a screw jack shoe which allows the leveling of the together (14). 4)Pietement télescopique de mobilier selon les revendications 1,2 et 3 caracterisé en ce que l'energie motrice du mecanisme est electrique par moteur,dans le châssis,couplé au pignon central en choisissant un couple adéquat avec le 4) telescopic furniture legs according to claims 1,2 and 3 characterized in that the driving energy of the mechanism is electric by motor, in the chassis, coupled to the central pinion by choosing an adequate torque with the
Figure img00040001
Figure img00040001
meilleur rendement,il sera prevu d'installer/des interrupteurs de fin de courses.  better performance, it will be planned to install / limit switches.
FR8914070A 1989-10-26 1989-10-26 MECHANICAL TELESCOPIC BASE. Expired - Fee Related FR2653645B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8914070A FR2653645B1 (en) 1989-10-26 1989-10-26 MECHANICAL TELESCOPIC BASE.

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Application Number Priority Date Filing Date Title
FR8914070A FR2653645B1 (en) 1989-10-26 1989-10-26 MECHANICAL TELESCOPIC BASE.

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FR2653645A1 true FR2653645A1 (en) 1991-05-03
FR2653645B1 FR2653645B1 (en) 1993-10-08

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013081712A1 (en) * 2011-11-30 2013-06-06 Van Dyne Trace Eugene Collapsible leg assembly
CN109008346A (en) * 2018-07-31 2018-12-18 万志平 A kind of intelligentized Furniture pedestal

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1383273A (en) * 1963-12-12 1964-12-24 Robert Krause Kg Fa Adjustable height pedestal table
DE2846223A1 (en) * 1978-10-24 1980-05-08 Veyhl Produktion Office desk with height adjustable top - has frame joined to working surface by threaded spindles, with cable ducts for electric drive
DE8813087U1 (en) * 1988-10-18 1988-12-08 Drabert Söhne GmbH & Co, 4930 Detmold Height adjustment device for table tops, especially for office furniture
FR2620316A1 (en) * 1987-09-14 1989-03-17 Morbihan Union Mutualiste Table with adjustable height
CH669502A5 (en) * 1985-09-30 1989-03-31 Reppisch Werke Ag

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1383273A (en) * 1963-12-12 1964-12-24 Robert Krause Kg Fa Adjustable height pedestal table
DE2846223A1 (en) * 1978-10-24 1980-05-08 Veyhl Produktion Office desk with height adjustable top - has frame joined to working surface by threaded spindles, with cable ducts for electric drive
CH669502A5 (en) * 1985-09-30 1989-03-31 Reppisch Werke Ag
FR2620316A1 (en) * 1987-09-14 1989-03-17 Morbihan Union Mutualiste Table with adjustable height
DE8813087U1 (en) * 1988-10-18 1988-12-08 Drabert Söhne GmbH & Co, 4930 Detmold Height adjustment device for table tops, especially for office furniture

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013081712A1 (en) * 2011-11-30 2013-06-06 Van Dyne Trace Eugene Collapsible leg assembly
CN109008346A (en) * 2018-07-31 2018-12-18 万志平 A kind of intelligentized Furniture pedestal

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FR2653645B1 (en) 1993-10-08

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