FR2607878A1 - Mechanism for isostatic linking, with fourfold links, between a plane surface and a skew surface and various applications of this mechanism - Google Patents

Mechanism for isostatic linking, with fourfold links, between a plane surface and a skew surface and various applications of this mechanism Download PDF

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Publication number
FR2607878A1
FR2607878A1 FR8616902A FR8616902A FR2607878A1 FR 2607878 A1 FR2607878 A1 FR 2607878A1 FR 8616902 A FR8616902 A FR 8616902A FR 8616902 A FR8616902 A FR 8616902A FR 2607878 A1 FR2607878 A1 FR 2607878A1
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France
Prior art keywords
freedom
articulations
frame
mechanism according
sides
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Granted
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FR8616902A
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French (fr)
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FR2607878B1 (en
Inventor
Jacques Coste
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Office National dEtudes et de Recherches Aerospatiales ONERA
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Office National dEtudes et de Recherches Aerospatiales ONERA
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Priority to FR8616902A priority Critical patent/FR2607878B1/en
Priority to FR878717401A priority patent/FR2624563B2/en
Publication of FR2607878A1 publication Critical patent/FR2607878A1/en
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Publication of FR2607878B1 publication Critical patent/FR2607878B1/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/20Undercarriages with or without wheels
    • F16M11/24Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
    • F16M11/26Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by telescoping, with or without folding
    • F16M11/28Undercarriages for supports with one single telescoping pillar
    • 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
    • A47B13/00Details of tables or desks
    • A47B13/02Underframes
    • 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
    • A47B91/00Feet for furniture in general
    • A47B91/16Self-levelling legs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/02Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement
    • B63B1/10Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls
    • B63B1/14Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls the hulls being interconnected resiliently or having means for actively varying hull shape or configuration
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M7/00Details of attaching or adjusting engine beds, frames, or supporting-legs on foundation or base; Attaching non-moving engine parts, e.g. cylinder blocks
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M9/00Aerodynamic testing; Arrangements in or on wind tunnels
    • G01M9/02Wind tunnels
    • G01M9/04Details
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M2200/00Details of stands or supports
    • F16M2200/04Balancing means
    • F16M2200/047Balancing means for balancing translational movement of the head

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

Mechanism for isostatic linking, with fourfold links, between a plane surface and a skew surface, including: a frame 2 in the shape of a parallelogram integral with the skew surface; four first articulations 4 with two degrees of rotational freedom located at the corners of the frame 2 so as to connect the sides 3 together in pairs, these rotational freedoms being provided about an axis which is coaxial, to the two sides adjacent to each first articulation or is close to and parallel to the latter; and four second articulations 7 with one degree of rotational freedom and one degree of axial translational freedom located at the respective middles of the sides 3 and integral with the plane surface 8, this rotational freedom being provided about an axis parallel to the two sides framing the side supporting each second articulation; the first articulations or the second articulations further possessing an additional degree of axial translational freedom.

Description

Mecanlsme de liaison isostatiaue a quadruples liaisons entre une surface PLane et une surface rauche et applications diverses de ce mecanisme. Isostatic bonding mechanism with quadruple bonds between a plane surface and a rough surface and various applications of this mechanism.

La présente invention concerne un mécanisme particulier de liaison isostatique quadruples liaisons entre une surface plane et une surface gaucher et elle concerne aussi diverses applications de ce mecanisme. The present invention relates to a particular mechanism for isostatic connection with quadruple connections between a planar surface and a left-handed surface and it also relates to various applications of this mechanism.

I1 est connu que seuls les mécanismes de liaison a triples liaisons sont naturellement isostatiques et que les mecanismes de liaison possedant un nombre de liaisons superieur a trois, et en particulier les mecanismes a quadruples liaisons, sont hyperstatiques. I1 en resulte que les mecanismes a liaisons quadruples entre une surface plane et une surface gauche doivent etre agences pour autoriser un reglage sur au moins une des liaisons afin que les efforts transmis soient repartis entre les quatre liaisons en question et que les quatre liaisons puissent assurer efficacement leur fonction. It is known that only triple bonding mechanisms are naturally isostatic and that bonding mechanisms having a number of bonds greater than three, and in particular quadruple bonding mechanisms, are hyperstatic. It follows that the mechanisms with quadruple links between a flat surface and a left surface must be arranged to allow adjustment on at least one of the links so that the forces transmitted are distributed between the four links in question and that the four links can ensure their function effectively.

Par exemple, dans le cas de structures planes a quatre pieds (table, chaise, banc d'optique, marbre, etc .) devant reposer sur une surface de support susceptible de ne pas étre plane (surface gauche), il est connu d'équiper au moins un des pieds avec un organe réglable en hauteur (verin de reglage).For example, in the case of flat structures with four legs (table, chair, optical bench, marble, etc.) having to rest on a support surface which may not be flat (left surface), it is known to equip at least one of the feet with a height-adjustable member (adjustment cylinder).

L'inconvenient des dispositions actuellement utilisees dans ce contexte est que le reglage est effec tue pour assurer la staL e de la str être sur surface gauche determinee et que tout changement d'emplacement oblige a un nouveau calage de la structure. En outre, un positionnement determine de la structure lpaJ exemple pour assurer l'horizontalite d'un banc ou d'un marbre) oblige a equiper plusieurs pieds de verins respectifs et le reglage doit etre effectue par tâtonnement en agissant successivement sur les divers verins : cette operation est longue et doit être renouvelee apres chaque deplacement de la structure. Le cas des tables et des chaises reposant sur des sols non plans est également difficile a résoudre de façon simple et efficace dans la pratique courante. The disadvantage of the provisions currently used in this context is that the adjustment is made to ensure the staL e of the str be on the left surface determined and that any change of location requires a new setting of the structure. In addition, a determined positioning of the lpaJ structure (for example to ensure the horizontality of a bench or a marble) means that several feet of respective jacks must be fitted and the adjustment must be made by trial and error by acting successively on the various jacks: this operation is long and must be repeated after each movement of the structure. The case of tables and chairs resting on uneven floors is also difficult to solve in a simple and effective manner in current practice.

L'invention a donc essentiellement pour but de proposer un mécanisme à liaisons quadruples apte à assurer une liaison stable entre une surface plane et une surface gauche, qui satisfasse aux diverses exigences de la pratique mieux que les dispositifs actuellement connus, qui en outre autorise des reglages de position (par exemple d'horizontalité de la surface plane) de façon simple et rapide, et qui soit d'une conception peu complexe et peu onéreuse afin de pouvoir etre mis en oeuvre dans de nombreux domaines d' application. The object of the invention is therefore essentially to propose a mechanism with quadruple connections capable of ensuring a stable connection between a flat surface and a left surface, which satisfies the various requirements of the practice better than the devices currently known, which moreover allows position adjustments (for example of horizontality of the flat surface) in a simple and rapid manner, and which is of an inexpensive and inexpensive design in order to be able to be implemented in numerous fields of application.

A ces fins, le mecanisme conforme a l'invention se caracterise essentiellement en ce qu il comporte - un cadre en forme de parallelogramme solidaire de a surface gauche, - quatre premieres articulations a au moins deux- degres de inerte en rotation situees aux angles dudit cadre pour relier deux â deux les côtés dudit cadre, lesdites libertes de rotation de chaque première articulation etant prévues autour d'un axe coaxial aux deux côtés adjacents à ladite première articulation ou voisin et paralléle à ceux-ci, - et quatre secondes articulations à un degré de liberte en rotation situees aux milieux respectifs desdits cotes du cadre et solidaires de la surface plane, ladite liberte de rotation de chaque seconde articulation étant prevue autour d'un axe sensiblement paralléle aux deux cotés encadrant le coté supportant la seconde articula tion consideree, - les premiéres articulations ou les secondes articulations possédant en outre un degré supplémentaire de liberté en translation axiale.  For these purposes, the mechanism according to the invention is essentially characterized in that it comprises - a frame in the form of a parallelogram secured to the left surface, - four first articulations with at least two degrees of inertia in rotation situated at the angles of said frame for connecting two to two the sides of said frame, said freedom of rotation of each first articulation being provided around a coaxial axis at the two sides adjacent to or adjacent to said first articulation, and four second articulations to a degree of freedom in rotation located in the respective centers of said dimensions of the frame and integral with the flat surface, said freedom of rotation of each second articulation being provided around an axis substantially parallel to the two sides framing the side supporting the second articulation considered , - the first joints or the second joints also having an additional degree of freedom in axial translation e.

Dans un tel agencement, les secondes articulations définissent, deux a deux, des paires d'axes parallèles quelles que soient les positions mutuelles des premières articulations solidaires de la surface gauche. De ce fait, on est assuré en toutes circonstances que la surface plane est en liaison quadruple isostatique avec la surface gauche. En outre, pour conférer a la surface plane un positionnement déterminé (par exemple regler son horizontalité), le réglage est rendu tres facile du fait que l'intervention au niveau de l'une des premieres articulations (par exemple un des pieds solidaires d'une correspondante de ces premières articulationsi n'agit que sur la diagonale correspondante du cadre précité et est sans influence sur l'autre diagonale du cadre. In such an arrangement, the second articulations define, two by two, pairs of parallel axes whatever the mutual positions of the first articulations secured to the left surface. Therefore, it is ensured in all circumstances that the planar surface is in quadruple isostatic connection with the left surface. In addition, to give the flat surface a determined positioning (for example adjusting its horizontality), the adjustment is made very easy because the intervention at one of the first articulations (for example one of the feet integral with a correspondent of these first articulationsi acts only on the corresponding diagonal of the above-mentioned frame and has no influence on the other diagonal of the frame.

Dans la pratique, 1l est avantageux, pour des questions de simplicite de realisaton, que le cadre soit un quadrilatere rectangle ou carré. In practice, it is advantageous, for reasons of simplicity of realization, whether the frame is a rectangle or square quadrilateral.

De preference, toujours pour simplifier le mecanisme, les premieres articulations precitees possèdent deux degres de liberté en rotation et les secondes articu:at;ons precitees possedent un seul degré de liberté en rotation et un degre de liberté en translation axiale. Preferably, again to simplify the mechanism, the aforementioned first articulations have two degrees of freedom in rotation and the second articulated: at; aforesaid have only one degree of freedom in rotation and a degree of freedom in axial translation.

Dans un mode de réalisation possible (mode de realisation a symetrie axiale), les axes 3oignant deux secondes artrculations u a deux opposees sont des axes de symetrie du mécanisme. In one possible embodiment (embodiment with axial symmetry), the axes 3 joining two second artrculations u to two opposite are axes of symmetry of the mechanism.

Dans un autre mode de réalisation possible (mode de réalisation a dissymétrie axiale ou a symetrie centrale), le point de concours des diagonales joignant les points de concours des secondes articulations est un centre de symetrie du mécanisme. In another possible embodiment (embodiment with axial asymmetry or with central symmetry), the point of intersection of the diagonals joining the points of intersection of the second articulations is a center of symmetry of the mechanism.

Un mécanisme a liaisons quadruples agence con fortement a l'invention peut trouver de nombreux domaines d'applcation, notamment pour la realisation d'une plateforme ou support stable analogue à quatre appuis, pour la réalisation d'un dispositif de haubanage ou analogue à quatre tirants, pour la réalisation d'une suspension ou analogue a quatre attaches, pour la réalisation d'un dispositif de manutention ou analogue à quatre attaches1 etc... A mechanism with quadruple connections strongly confined to the invention can find many fields of application, in particular for the realization of a platform or stable support analogous to four supports, for the realization of a guying device or the like to four tie rods, for making a suspension or the like with four fasteners, for making a handling device or the like with four fasteners1 etc ...

L'invention sera mieux comprise å la lecture de la description qui suit de certains de ses modes de réalisation préférés, donnés uniquement à titre illustratif non limitatif ; dans cette description on se réfère aux dessins annexes sur lesquels
- la fig. 1 est une vue tres schématique dé dessus d'un mécanisme conforme a l'invention
- la fig. 2 est une vue schématique partielle a échelle agrandie illustrant un mode de realisation possible du mécanisme de la fig. 1
- les fig. 3 et 4 sont des vues tres schemat.- ques, de dessus, illustrant respectivement deux configurations possibles pour le mecanaJme de la .g.
The invention will be better understood on reading the following description of some of its preferred embodiments, given only by way of nonlimiting illustration; in this description, reference is made to the accompanying drawings on which
- fig. 1 is a very schematic view from above of a mechanism according to the invention
- fig. 2 is a partial schematic view on an enlarged scale illustrating a possible embodiment of the mechanism of FIG. 1
- figs. 3 and 4 are very schematic views, from above, respectively illustrating two possible configurations for the mechanism of .g.

et
- les fig. 5A à 5F,6,7A et 7B, 8A et 8B illustrent schématiquement diverses applications d'un mecanisme conforme a l'invention.
and
- figs. 5A to 5F, 6.7A and 7B, 8A and 8B schematically illustrate various applications of a mechanism according to the invention.

Le mécanisme conforme å l'invention désigné dans son ensemble par la référence numérique 1 å la fig. 1, comprend un cadre 2 en forme de parallélogramme qui est solidaire, de toute façon appropriee, d'une surface gauche ou susceptible de se gauchir (non representée) par exemple le cadre repose sur la surface gauche par l'intermediaire de pieds (non representés) ou est supporté par la surface gauche par l'intermediaire de tiges ou de haubans (non représentes), comme cela apparaîtra dans la suite de la description. De façon simple, lé cadre est un parallelogramme rectangle (comme représente) ou carré. The mechanism according to the invention designated as a whole by the reference numeral 1 in FIG. 1, comprises a frame 2 in the form of a parallelogram which is integral, in any suitable manner, with a left surface or liable to warp (not shown) for example the frame rests on the left surface by means of feet (not or is supported by the left surface by means of rods or shrouds (not shown), as will appear in the following description. Simply put, the frame is a rectangular (as shown) or square parallelogram.

Les côtés ou analogues 3 constituant le cadre sont réunis les uns aux autres par des premières articulations 4, au nombre de quatre, possédant au moins deux degrés de liberté en rotation autour de deux axes perpendiculaires entre eux, ces axes coïncidant avec les axes longitudinaux des deux côtés réunis ou étant parallèles a ceux-ci. The sides or the like 3 constituting the frame are joined to each other by first articulations 4, four in number, having at least two degrees of freedom in rotation around two axes perpendicular to each other, these axes coinciding with the longitudinal axes of the two sides joined together or being parallel thereto.

Comme representé a titre d'exemple à la fig. 2, chaque articulation 4 peut comporter un premier pivot 5, coaxial au côté 31 et supporté à rotation par le côté auquel il est perpendiculaire, et un deuxième pivot 6, solidaire du pivot 5 et perpendiculaire a celui-ci, supportant à rotation le côté
Bien entendu, les articulations 4 a au moins deux degrés de liberté en rotation peuvent etre realisees de maniere différente de l'exemple donné a la fig.
As shown by way of example in FIG. 2, each articulation 4 may comprise a first pivot 5, coaxial with the side 31 and supported in rotation by the side to which it is perpendicular, and a second pivot 6, integral with the pivot 5 and perpendicular thereto, supporting the side in rotation
Of course, the joints 4 with at least two degrees of freedom in rotation can be produced in a different manner from the example given in FIG.

2. Notamment elles peuvent être constituees par des rotules, ou bien Si les deplacements relatifs des côtes restent relativement faibles, par des plots e un mate riau elastiquement deformable (par exemple en caoutchouc ou analogue), ou bien encore, touJours dans le cas de deplacements relatifs de relativement faible importance, par le seul axe de rotation 6, l'autre degré de Liberté étant conferé par la flexibilité en torsion du cote
En outre, les quatre côtés 3 supportent en leur milieu quatre articulations 7 qui ont un seul degré de liberte en rotation autour d'un axe perpendiculaire au cote considere et parallele aux deux côtés encadrant ce dernier et qui ont également un degré supplémentaire de liberte en translation axiale.Comme représenté sur les fig. 1 et 2, il peut s'agir simplement de pivots 7 supportes a rotation par les tirants 3 et solidaires d'une surface plane schématisée sur les fig. 1 et 2 par le cadre 8.
2. In particular, they can be formed by ball joints, or else if the relative displacements of the ribs remain relatively small, by studs and an elastically deformable mat (for example made of rubber or the like), or alternatively, always in the case of relatively small relative displacements, by the only axis of rotation 6, the other degree of freedom being conferred by the torsional flexibility of the dimension
In addition, the four sides 3 support in their middle four joints 7 which have a single degree of freedom in rotation about an axis perpendicular to the dimension considered and parallel to the two sides framing the latter and which also have an additional degree of freedom in axial translation. As shown in fig. 1 and 2, it may simply be pivots 7 supported for rotation by the tie rods 3 and secured to a flat surface shown diagrammatically in FIGS. 1 and 2 by frame 8.

L'avantage essentiel d'un mécanisme a liaisons quadruples conforme à l'invention est de répartir les efforts entre les quatre liaisons et de rendre isostatique, et donc stable, un système qui, d'origine, est hyperstatique et donc instable. The essential advantage of a mechanism with quadruple connections according to the invention is to distribute the forces between the four connections and to make isostatic, and therefore stable, a system which, originally, is hyperstatic and therefore unstable.

Un autre avantage intéressant de ce mécanisme est de simplifier les réglages de positionnement mutuel des surfaces plane et gauche, par exemple pour assurer l'horizontalité de la surface plane. En effet , tout réglage effectué au niveau de l'une des premières articulations (par exemple, ajustement en hauteur du pied correspondant) n'agit que sur la diagonale correspondante du cadre 2 et est sans influence sur l'autre diagonale de ce cadre. Another advantageous advantage of this mechanism is to simplify the mutual positioning adjustments of the planar and left surfaces, for example to ensure the horizontality of the planar surface. Indeed, any adjustment made at one of the first joints (for example, adjustment in height of the corresponding foot) only acts on the corresponding diagonal of the frame 2 and has no influence on the other diagonal of this frame.

Le dispositif qui vient d'être décrit peut donner lieu à deux modes de réalisation différents
- un premier mode de réalisation 1' représente a la fig. 3 possede une symétrie axiale par rapport a l'un quelconque des deux axes 9 3oignant deux secondes articulations 7 opposees (mode de realisation a symétrie axiale)
- un second mode de realisation 1" representé a la fig. 4 posséde une symétrie par rapport au point de concours 10 des diagonales 10' joignant les points de concours des axes 9 des secondes articulations 7 (mode de réalisation à symétrie centrale ou à dissymétrie axiale).
The device which has just been described can give rise to two different embodiments
- A first embodiment 1 'represents in FIG. 3 has an axial symmetry with respect to any one of the two axes 9 3 joining two opposing second articulations 7 (embodiment with axial symmetry)
- A second embodiment 1 "shown in FIG. 4 has symmetry with respect to the point of competition 10 of the diagonals 10 'joining the points of competition of the axes 9 of the second articulations 7 (embodiment with central symmetry or asymmetry axial).

Sur les deux figures 3 et 4, les mêmes reférences numériques sont conservees pour désigner les éléments identiques des fig. 1 et 2. Les extrémités 11 des côtés 3 des mecanismes 1' et 1" constituent les appuis des mécanismes sur la surface gauche, ces appuis étant soit directs, soit indirects (par l'intermédiaire de pieds, tiges, haubans, etc...). In the two figures 3 and 4, the same numerical references are kept to designate the identical elements of FIGS. 1 and 2. The ends 11 of the sides 3 of the mechanisms 1 ′ and 1 "constitute the supports of the mechanisms on the left surface, these supports being either direct or indirect (by means of feet, rods, shrouds, etc.) .).

En se référant aux figures suivantes, on va maintenant décrire briévement divers exemples d'applications du mécanisme de l'invention. Sur toutes ces figures, on a conserve les mêmes références numériques pour désigner les éléments identiques a ceux des figures 1 à 4. Referring to the following figures, we will now briefly describe various examples of applications of the mechanism of the invention. In all these figures, the same reference numerals have been kept to designate the elements identical to those of FIGS. 1 to 4.

Un premier domaine d'application du mécanisme de l'invention consiste en la réalisation de plateformes ou supports stables analogues tels que ceux montrés aux fig. 5A à 5F. A first field of application of the mechanism of the invention consists in the production of platforms or similar stable supports such as those shown in FIGS. 5A to 5F.

La fig. 5A montre, en vue perspective de dessous, une table dont le plateau 8, constituant la surface plane précitée, repose sur un piètement 1' agencé conformément au mode de réalisation de la fig. 3. Fig. 5A shows, in perspective view from below, a table whose plate 8, constituting the aforementioned flat surface, rests on a base 1 'arranged in accordance with the embodiment of FIG. 3.

La fig. 5B est une vue en perspective d'une table dont le plateau 12 repose, par une colonne centrale 13, sur un support 8 constituant la surface plane precitée, le pietement 1" correspondant au mode de realisation de la fig. 3. Fig. 5B is a perspective view of a table, the plate 12 of which rests, by a central column 13, on a support 8 constituting the above-mentioned flat surface, the base 1 "corresponding to the embodiment of FIG. 3.

Les tables des figures 5A et 5B peuvent être munies de roulettes. The tables of FIGS. 5A and 5B can be fitted with rollers.

La fig. 5C montre un socle de support dont la surface plane d repose sur un piétement 1 agencé conformement au mode de realisation de la fig. 3. Fig. 5C shows a support base whose flat surface d rests on a base 1 arranged in accordance with the embodiment of FIG. 3.

La fig. 5D represente une plateforme flottante, dont le plancher 8 repose sur une structure analogue a celle 1' de la figure 3 dans laquelle deux tirants parallèles 3 ont été agencés sous forme de deux flotteurs 14. Une succession de plateformes telles que décrites, accouplées par les flotteurs au moyen d'art Iculation 14A, peut permettre de constituer une passerelle marne. Fig. 5D represents a floating platform, the floor 8 of which rests on a structure similar to that 1 ′ in FIG. 3 in which two parallel tie rods 3 have been arranged in the form of two floats 14. A succession of platforms as described, coupled by the floats by means of Iculation art 14A, can make it possible to constitute a gangway.

La fig. 5E représente une passerelle d'embarquement pour navire s'étendant entre un navire 15 et un quai ou ponton 16, le plancher 8 reposant sur une structure 1' analogue a celle de la fig. 3. Fig. 5E shows a boarding bridge for a ship extending between a ship 15 and a quay or pontoon 16, the floor 8 resting on a structure 1 'similar to that of FIG. 3.

Enfin la fig. 5F représente un support pour pièces gauches, ce support reposant sur une surface plane (non représentée) et les pièces gauches étant posees sur les quatre appuis 17, ce dispositif étant identique au mode de realisation 1' de la fig. 3.  Finally fig. 5F represents a support for left parts, this support resting on a flat surface (not shown) and the left parts being placed on the four supports 17, this device being identical to embodiment 1 'of FIG. 3.

Un deuxième domaine d'application du mécanisme de l'invention consiste en la réalisation de dispositifs de haubanage ou analogues tel que celui représenté à la fig. 6. Dans ce dispositif, qui utilise par exemple le mécanisme 1" de la fig.4, les secondes articulations 7 sont rendues solidaires d'un mat central à haubanner 18 (équivalent techniquement à la surface plane précitée), tandis que les extrémités des côtés 3 supportent les haubans 19 de soutien d'un corps (non représenté). A second field of application of the mechanism of the invention consists in the production of guy lines or the like such as that shown in FIG. 6. In this device, which uses for example the mechanism 1 "of FIG. 4, the second articulations 7 are made integral with a central mast to be guyed 18 (technically equivalent to the above-mentioned flat surface), while the ends of the sides 3 support the stays 19 for supporting a body (not shown).

Un troisième domaine d'application du mécanisme de l'invention consiste en la réalisation de dispositifs de suspension ou analogues tels que ceux représentés aux fig. 7A et 7B. A third field of application of the mechanism of the invention consists in the production of suspension devices or the like such as those shown in FIGS. 7A and 7B.

La fig. 7A montre une installation de suspension d'une maquette 20 (par exemple une maquette d'avion,' dans une soufflerie dont seule la paroi superieure 8 a et figurée Cette paroi, constituant la surface plane precitee, supporte, -par exemple par l'intermédiaire de poutres 21, un mecanisme de suspension 1' agencé conformément a celui de la fig. 3, les extrémités des côtés 3 supportant les haubans 22 de suspension de la maquette 20. Fig. 7A shows an installation for suspending a model 20 (for example an airplane model, 'in a wind tunnel of which only the upper wall 8 has and shown This wall, constituting the above-mentioned plane surface, supported, for example by the intermediate beams 21, a suspension mechanism 1 'arranged in accordance with that of Fig. 3, the ends of the sides 3 supporting the stay cables 22 for hanging the model 20.

La fig. 7B représente une autre conception d'lnstallation de suspension de maquette, dans laquelle cependant le mécanisme de suspension agencé selon l'invention est reporté sur le corps suspendu. Autrement la la maquette 23 (par exemple un missile) Doue le rôle de la surface plane 8 précitée et est solidarisée aux secondes articulations 7 tandis que la paroi 24 ou la structure porteuse de la soufflerie, constituant la surface gauche, est reliée par des haubans 25 aux côtés 3 de deux mécanismes de suspension 1' conformes à celui de la fig. 3. Fig. 7B shows another design of a model suspension installation, in which however the suspension mechanism arranged according to the invention is transferred to the suspended body. Otherwise the model 23 (for example a missile) Doue the role of the aforementioned flat surface 8 and is secured to the second articulations 7 while the wall 24 or the bearing structure of the wind tunnel, constituting the left surface, is connected by guy lines 25 on the sides 3 of two suspension mechanisms 1 'conforming to that of FIG. 3.

Un quatrième domaine d'application du mécanisme de l'invention consiste en la réalisation de dispositifs de manutention ou analogues, tels que ceux montrés aux fig. 8A et 8B. A fourth field of application of the mechanism of the invention consists in the production of handling devices or the like, such as those shown in FIGS. 8A and 8B.

La fig. 8A montre un dispositif de manutention suspension à un filin 26 d'une grue ou a un bras de grue par une plaque 8 ou analogue faisant partie d'un mécanisme 1' conforme à celui de la fig. 3, les extrémités des côtés 3 supportant de toute façon appropriée (par accrochage direct, par des haubans, par des sangles, etc...) une plateforme 27 supportant une charge 27A. Fig. 8A shows a handling device suspended from a rope 26 of a crane or from a crane arm by a plate 8 or the like forming part of a mechanism 1 'conforming to that of FIG. 3, the ends of the sides 3 supporting in any suitable manner (by direct attachment, by shrouds, by straps, etc.) a platform 27 supporting a load 27A.

Enfin la fig. 8B montre un autre type de dispositif de manutention constitué par un mécanisme 1' conforme a celui de la fig. 3, solidarisé, par la plaque 8, à une extrémité de bras hydraulique 28 d'un engin de manutention ; les pieds 11 des côtés 3 peuvent, par exemple, etre équipés de ventouses 29 permettant de saisir des plaques 30. Finally fig. 8B shows another type of handling device constituted by a mechanism 1 'conforming to that of FIG. 3, secured by the plate 8, to one end of the hydraulic arm 28 of a handling machine; the feet 11 on the sides 3 can, for example, be fitted with suction cups 29 enabling the plates 30 to be grasped.

te mécanisme isostatique conforme a 1 'nvention s'applique également a la realisation de vehlcuLes terrestres a roues, sans suspension. The isostatic mechanism in accordance with the invention also applies to the production of wheeled land vehicles, without suspension.

Comme il va de soi et comme il resulte d'ailleurs déDà de ce qui précéde, l'invention ne se limite nullement à ceux de ses modes d'application et de réalisation qui ont été plus spécialement envisages elle en embrasse, au contraire, toutes les variantes.  As it goes without saying and as it moreover results beyond what precedes, the invention is in no way limited to those of its modes of application and embodiments which have been more especially envisaged, it embraces, on the contrary, all variants.

Claims (10)

REVENDICATIONS.CLAIMS. 1. Mécanisme de liaison isostatique à quadruples liaisons entre une surface plane et une surface gauche, caractérisé en ce qu'il comporte - un cadre (2) en forme de parallélogramme solidaire de la surface gauche, - quatre premières articulations (4)à au moins deux degrés de liberté en rotation situées aux angles dudit cadre pour relier deux à deux les côtés (3) dudit cadre, lesdites libertés de rotation de chaque première articulation étant prévues autour d'un axe coaxial aux deux côtés adjacents a ladite première articulation ou voisin et parallèle a ceux-ci, - et quatre secondes articulations (7) à un degré de liberté en rotation et un degré de liberté en translation axiale situées aux milieux respectifs desdits côtés du cadre et solidaires de la surface plane (8), ladite liberté de rotation de chaque seconde articulation étant prévue autour d'un axe p) ele aux deux côtés encadrant le côté supportant la seconde articulation consideree, - les premières articulations ou les secondes articulations possédant en outre un degré supplémentaire de liberté en translation axiale. 1. Isostatic connection mechanism with quadruple connections between a flat surface and a left surface, characterized in that it comprises - a frame (2) in the form of a parallelogram secured to the left surface, - first four articulations (4) to at at least two degrees of freedom in rotation situated at the angles of said frame to connect two by two the sides (3) of said frame, said freedom of rotation of each first articulation being provided around an axis coaxial with the two sides adjacent to said first articulation or neighbor and parallel to these, - and four second articulations (7) with a degree of freedom in rotation and a degree of freedom in axial translation located in the respective media on said sides of the frame and integral with the flat surface (8), said freedom of rotation of each second articulation being provided around an axis p) ele on both sides framing the side supporting the second articulation considered, - the first articulations or the second ar ticulations further having an additional degree of freedom in axial translation. 2. Mécanisme de liaison selon la revendication 1, caractérisé en ce que le cadre est un quadrilatère rentangle ou carré. 2. Connection mechanism according to claim 1, characterized in that the frame is a rentangle or square quadrilateral. 3. Mécanisme de liaison selon la revendication 1 ou 2, caractérisé en ce que le cadre est solidarisé å la surface gauche a ses angles ou au voisinage de ses angles. 3. Connecting mechanism according to claim 1 or 2, characterized in that the frame is secured to the left surface at its angles or in the vicinity of its angles. 4. Mécanisme de liaison selon la revendication 1 a 3, caractérisé en ce que les premières articulations (4) ont deux degres de liberté et en ce que les secondes articulations (7) ont un degré de liberté. 4. Connection mechanism according to claim 1 to 3, characterized in that the first joints (4) have two degrees of freedom and in that the second joints (7) have a degree of freedom. 5. Mécanisme de liaison selon l'une quelconque des revendications 1 à 4, caractérisé en ce que les axes joignant deux secondes articulations (4) deux à deux opposées sont des axes de symétrie du mécanisme. 5. Connection mechanism according to any one of claims 1 to 4, characterized in that the axes joining two second articulations (4) two opposite to two are axes of symmetry of the mechanism. 6. Mécanisme selon l'une quelconque des revendications i à 5, caractérisé en ce que le point de concours (10) des diagonales joignant les points de concours des secondes articulations (7) est un centre de symétrie du mécanisme. 6. Mechanism according to any one of claims i to 5, characterized in that the point of competition (10) of the diagonals joining the points of competition of the second articulations (7) is a center of symmetry of the mechanism. 7. Application d'un mécanisme de liaison selon l'une quelconque des revendications 1 à 6 à la réalisa tion d'une plateforme ou support stable analogue à quatre appuis. 7. Application of a connecting mechanism according to any one of claims 1 to 6 to the realization of a stable platform or support similar to four supports. 8. Application d'un mécanisme de liaison selon l'une quelconque des revendications 1 a 6 à la réalisa tion d'un dispositif de haubanage ou analogue à quatre tirants. 8. Application of a linkage mechanism according to any one of claims 1 to 6 to the realization of a guying device or the like with four tie rods. 9. Application d'un mécanisme de liaison selon l'une quelconque des revendications I a 6 a la réalisa- tion d'une suspension ou analogue à quatre attaches. 9. Application of a linkage mechanism according to any one of claims I to 6 to the production of a suspension or the like with four fasteners. 10. Application d'un mécanisme de liaison selon l'une quelconque des revendications 1 à 6 à la réalisa tion d'un dispositif de manutention ou analogue à quatre attaches.  10. Application of a connecting mechanism according to any one of claims 1 to 6 to the realization of a handling device or the like with four fasteners.
FR8616902A 1986-12-03 1986-12-03 QUADRUPLIC ISOSTATIC LINK MECHANISM BETWEEN A FLAT SURFACE AND A LEFT SURFACE AND MISCELLANEOUS APPLICATIONS OF THIS MECHANISM Expired FR2607878B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR8616902A FR2607878B1 (en) 1986-12-03 1986-12-03 QUADRUPLIC ISOSTATIC LINK MECHANISM BETWEEN A FLAT SURFACE AND A LEFT SURFACE AND MISCELLANEOUS APPLICATIONS OF THIS MECHANISM
FR878717401A FR2624563B2 (en) 1986-12-03 1987-12-14 IMPROVEMENTS TO A QUADRUPLIC ISOSTATIC LINK MECHANISM BETWEEN A FLAT SURFACE AND A LEFT SURFACE AND APPLICATION OF THIS MECHANISM

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FR8616902A FR2607878B1 (en) 1986-12-03 1986-12-03 QUADRUPLIC ISOSTATIC LINK MECHANISM BETWEEN A FLAT SURFACE AND A LEFT SURFACE AND MISCELLANEOUS APPLICATIONS OF THIS MECHANISM

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WO2002010055A3 (en) * 2000-07-29 2002-09-06 B & P Bautraeger Gmbh Device for transporting and lifting bulky objects
WO2011107677A1 (en) 2010-03-04 2011-09-09 Robert Baltasar Hinged system providing automatic stabilisation on uneven ground, forming the base of a table or surface with four legs
EP2515709A1 (en) * 2009-12-24 2012-10-31 No Rock Cafe Tables Pty Ltd Stabilisation of objects
EP2515713A1 (en) * 2009-12-24 2012-10-31 No Rock Cafe Tables Pty Ltd Stabilisation of objects
EP2538819A1 (en) * 2010-02-26 2013-01-02 Tipstop Tables Pty Ltd Stabilisation of objects
WO2014059481A1 (en) * 2012-10-18 2014-04-24 No Rock Cafe Tables Pty Ltd Improvements in stabilisation arrangements
CZ308448B6 (en) * 2018-12-13 2020-08-26 Jan Dumek Equipment for measuring the aerodynamic properties of objects
US11666142B2 (en) 2018-09-10 2023-06-06 No Rock Cafe Tables Pty Ltd Stabilising arrangements
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FR2580481A1 (en) * 1985-04-17 1986-10-24 Bois Daniel Table comprising a skeleton supporting a rigid top and provided with four points for bearing on the ground

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AU2010336036B2 (en) * 2009-12-24 2016-06-23 No Rock Cafe Tables Pty Ltd Stabilisation of objects
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US8997662B2 (en) 2009-12-24 2015-04-07 No Rock Café Tables Pty Ltd. Stabilisation of objects
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US8607715B2 (en) 2009-12-24 2013-12-17 No Rock Cafe Tables Pty Ltd Stabilisation of objects
JP2013515512A (en) * 2009-12-24 2013-05-09 ノー、ロック、カフェ、テーブルズ、プロプライエタリー、リミテッド Stabilization of objects
EP2515713A4 (en) * 2009-12-24 2013-05-15 No Rock Cafe Tables Pty Ltd Stabilisation of objects
EP2515709A4 (en) * 2009-12-24 2013-05-15 No Rock Cafe Tables Pty Ltd Stabilisation of objects
AU2011220330B2 (en) * 2010-02-26 2014-06-05 Tipstop Tables Pty Ltd Stabilisation of objects
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US8870134B2 (en) 2010-02-26 2014-10-28 Tipstop Tables Pty Ltd Stabilisation of objects
EP2538819A4 (en) * 2010-02-26 2014-01-15 Tipstop Tables Pty Ltd Stabilisation of objects
CN103118568A (en) * 2010-03-04 2013-05-22 罗伯特·巴尔塔萨 Hinged system providing automatic stabilisation on uneven ground, forming the base of a table or surface with four legs
FR2956956A1 (en) * 2010-03-04 2011-09-09 Robert Baltasar ARTICULATED SYSTEM FOR AUTOMATIC STABILIZATION ON AN IRREGULAR SOIL CONSISTING OF A 4-PIECE TABLE OR TRAY
WO2011107677A1 (en) 2010-03-04 2011-09-09 Robert Baltasar Hinged system providing automatic stabilisation on uneven ground, forming the base of a table or surface with four legs
CN103118568B (en) * 2010-03-04 2015-06-17 罗伯特·巴尔塔萨 Hinged system providing automatic stabilisation on uneven ground, forming the base of a table or surface with four legs
JP2015536702A (en) * 2012-10-18 2015-12-24 ノー、ロック、カフェ、テーブルズ、プロプライエタリー、リミテッドNo Rock Cafe Tables Pty Ltd Improved stabilizer
US9833071B2 (en) 2012-10-18 2017-12-05 No Rock Cafe Tables Pty Ltd. Stabilisation arrangements
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WO2014059481A1 (en) * 2012-10-18 2014-04-24 No Rock Cafe Tables Pty Ltd Improvements in stabilisation arrangements
US11774031B2 (en) * 2017-09-04 2023-10-03 No Rock Cafe Tables Pty Ltd Stabilization of objects
US11666142B2 (en) 2018-09-10 2023-06-06 No Rock Cafe Tables Pty Ltd Stabilising arrangements
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