WO2015040012A1 - Combination of at least one tube and at least one means for gripping the tube - Google Patents

Combination of at least one tube and at least one means for gripping the tube Download PDF

Info

Publication number
WO2015040012A1
WO2015040012A1 PCT/EP2014/069673 EP2014069673W WO2015040012A1 WO 2015040012 A1 WO2015040012 A1 WO 2015040012A1 EP 2014069673 W EP2014069673 W EP 2014069673W WO 2015040012 A1 WO2015040012 A1 WO 2015040012A1
Authority
WO
WIPO (PCT)
Prior art keywords
jaw
tube
section
cross
contact
Prior art date
Application number
PCT/EP2014/069673
Other languages
French (fr)
Inventor
Benoît THEUNISSEN
Original Assignee
Atom Prod
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Atom Prod filed Critical Atom Prod
Publication of WO2015040012A1 publication Critical patent/WO2015040012A1/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G7/00—Connections between parts of the scaffold
    • E04G7/02—Connections between parts of the scaffold with separate coupling elements
    • E04G7/06—Stiff scaffolding clamps for connecting scaffold members of common shape
    • E04G7/12—Clamps or clips for crossing members
    • E04G7/14—Clamps or clips for crossing members for clamping the members independently
    • E04G7/16—Clamps or clips for crossing members for clamping the members independently of which the clamping parts for the different members are rotatable with respect to one another
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G7/00—Connections between parts of the scaffold
    • E04G7/02—Connections between parts of the scaffold with separate coupling elements
    • E04G7/26—Connections between parts of the scaffold with separate coupling elements for use with specially-shaped scaffold members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2/00—Friction-grip releasable fastenings
    • F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
    • F16B2/06—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action
    • F16B2/10—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action using pivoting jaws
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/04—Clamping or clipping connections
    • F16B7/0433—Clamping or clipping connections for rods or tubes being in parallel relationship
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/04—Clamping or clipping connections
    • F16B7/044—Clamping or clipping connections for rods or tubes being in angled relationship
    • F16B7/048—Clamping or clipping connections for rods or tubes being in angled relationship for rods or for tubes without using the innerside thereof
    • F16B7/0493—Clamping or clipping connections for rods or tubes being in angled relationship for rods or for tubes without using the innerside thereof forming a crossed-over connection

Definitions

  • said gripping means comprising a first jaw, each part of said first jaw having an inner surface and a first outer surface, said inner surface being in contact with a second outer surface of said at least one tube when said tube is mounted in said jaw, said gripping means comprising at least one clamping means arranged to clamp said inner surface of said jaw portions to said second outer surface of said tube .
  • Such a combination is known from document GB636594 and is for example used for mounting scaffolds which generally consist of a set of tubes interconnected and on which can be hung accessories such as projectors, cameras, microphones, or loudspeakers.
  • the structures as described in this state of the art are constructed from tubes of polygonal cross-section interconnected by a gripping means te! as described above whose cross-section of the inner surface of said jaw portions is also polygonal, said gripping means being adapted to receive a tube which is clamped between said jaw portions.
  • said accessories are also intended to be connected to said tubes used, for example, by a polygonal cross-section clamp arranged to be clamped to said tube.
  • the type of combination as disclosed in GB636594 is intended to replace the more conventional scaffold structures, consisting of circular cross-section tubes and gripping means whose cross section of the inner surface of said jaw parts is also which have the disadvantage of seeing each of the tubes move in rotation along its longitudinal axis.
  • This degree of freedom is a constraint for example when mounting on the catwalks of heavy accessories (cameras, light spots) which, under the effect of gravity, tend to put said tubes in rotation.
  • accessories can also be connected to the tubes by a circular cross section clamp.
  • heavy accessories connected to said tubes, for example, by this type of clamp are also likely to be rotated around said tubes under the effect of gravity.
  • the propensity of the tubes or accessories to leave their initial position defined during the assembly of the scaffolding proves to be particularly embarrassing when it comes to stably attaching said accessories to a position defined on the gateway and in a precise orientation.
  • the rendering of the images of a film or the atmosphere of a theater scene is dependent, among other things, on the different technical and aesthetic aspects of the lighting, such as the level of illumination. , the contrast between light and shade, the color temperature, and the orientation of the lighting (front, backlight, side, etc.).
  • the quality of said rendering can be dramatically deteriorated.
  • both the outer surface of the tube and the inner surface of said jaw portions of the gripping means, and possibly the gripper have a polygonal cross section, allows during assembly of the scaffolding structure, creating a contact that is provided by different points of contact at the interface between the inner surface of the jaw and the outer surface of the tube.
  • the points of contact are formed between the point of intersection of two sides of the cross section polygon of the inner surface of the parts of said jaw and the point of intersection of two sides of the polygonal periphery of said tube, so that there is alignment of the sides of the polygonal cross section of the outer surface of said tube and the inner surface of said jaw portions to form different contact surfaces at the interface between the inner surface of the jaw and the outer surface of the tube.
  • each jaw portion has a profile defined by a cross section composed of a first set of straight segments and a second set of curvilinear segments, said first and second sets being distributed over a first inner surface periphery of each jaw portion, at least a first subset of said first set of straight segments being arranged to be in contact with and to fit at least a second portion around said second outer surface of said tube when said tube is of polygonal cross-section, at least a second subset of said second set of curvilinear segments being arranged to contact and to marry at least one second portion; at least a portion of the periphery of said second outer surface of said tube when said tube e st of circular cross section, said cross section of said tube and said cross section of the profile of said inner surface of each portion of said first jaw being mutually compatible to allow said contact and said clamping therebetween.
  • each contact zone is defined between a first portion of the second outer surface of said tube and a second portion of the inner surface of the portions of said jaw, said second inner surface portion of each portion of jaw having a profile defined by a cross section composed of said at least a first subset of straight segments, such that there is alignment of at least one side of the polygonal cross-section of the second outer surface of said tube with at least one straight segment of said first subset of straight segments forming the second inner surface portion of said jaw portions.
  • each contact zone is defined between a first portion of the second outer surface of said tube and a second portion of the inner surface of the portions of said jaw, said second inner surface portion of each portion of jaw having a profile defined by a cross section composed of said at least a second subset of curvilinear segments, such that there is alignment of the circular cross-section of the second outer surface of said tube with at least one curvilinear segment of said second subset of curvilinear segments forming the second inner surface portion of said jaw portions.
  • the contact areas correspond to pressure zones defined by a contact surface on which said pressure is exerted and which is defined at the interface between the second outer surface of the tube and the internal jaw surfaces during clamping.
  • the skilled person therefore has a gripping means compatible for both polygonal cross section tubes and circular cross section tubes.
  • said combination is characterized in that said polygonal cross section of said outer surface of said tube is selected from pentagonal, hexagonal, heptagonal, and octagonal shapes.
  • said combination is characterized in that when the jaw is closed, the profile of said internal surfaces of each jaw portion is at least defined by a cross section whose plurality of straight segments defines a polygonal shape, or substantially polygonal, chosen among the pentagonal, hexagonal, heptagonal, and octagonal forms.
  • the number of sides of the polygonal section of the tube is greater than 5, preferably between 5 and 8.
  • an optimum number of contact zones is understood to be a number between 5 and 8, preferably 5 or 6, so as to ensure the stable mounting of the polygonal cross section tube in the jaw while avoiding a possible deformation of the polygonal cross section of said tube during the clamping of the latter in iadite jaw.
  • This optimal number of contact zones depends on the diameter of the tubes which is generally between 30 and 50 mm for scaffolds such as those used in the entertainment industry. Indeed, on the one hand, if the number of contact points is greater than 8, during clamping, a pressure generated on each contact zone is too small to prevent rotation of the tube or the gripping means during assembly. scaffolding. Thus, for perimeters of tube or jaw whose diameter does not exceed 50 mm, a periphery with more than 8 sides becomes comparable to a circular circumference as the pressure on each contact zone as it does not allow to maintain these contact areas. Therefore, if the number of contact points is greater than 8, i!
  • said tube is a telescopic tube.
  • the combination comprises a second jaw having a second outer surface of one of the jaw portions which is connected to a point of contact of said first outer surface of one of the portions of said first jaw by a connecting pin passing through said point contact and allowing the rotation of said first and said second jaw along said connecting axis;
  • each of the jaw portions includes a first and a second end, said first ends of each of the jaw portions being interconnected by a connecting means, said connecting means including at least a first orifice passing through said first ends of each of the parts jaw assembly and at least one connecting means arranged to pass through said at least one first aperture on said first ends of the jaw portions, such that when said jaw is closed, the inner surfaces face each other; and
  • said clamping means comprises a notch located at said second end of a first jaw portion, each side wall of said notch being traversed by a second orifice, said second orifices of each side wall facing each other, and that said clamping means further comprises an extended threaded rod of a T-shaped head, said T-shaped head being connected to said second end of said first end jaw portion engaged in said first notch, each end of said T-shaped head passing through said second orifice located on each side wall of said notch, allowing the rotation of said threaded rod along an axis passing through said second orifices, said rod being further intended, when said jaw is closed, to be housed temporarily in a second notch located at level of said second end of a second jaw portion, said clamping means further comprising a screw thread nut complementary to that of said threaded rod, said nut being intended to be aimed at said rod when the latter is housed in said second notch such that said second end of said second jaw portion is permanently connected to said second end of said first jaw portion
  • the present invention also relates to a tube forming part of said combination according to the invention, characterized in that it has a polygonal or circular cross section.
  • the present invention also relates to a gripping means forming part of said combination according to the invention, characterized in that said inner surface of each jaw portion has a profile defined by a cross section composed of a plurality of straight segments and a plurality of curvilinear segments, each of said straight segments being arranged to contact and to conform to at least a circumferential portion of said outer surface of said polygonal cross-section tube, each of the curvilinear segments being arranged to be in contact with and for marry at at least a portion of periphery of said outer surface of said circular cross-section tube, said cross-section of said tube and said cross-section of the profile of said inner surface of each portion of said first jaw being mutually compatible to allow said contact and said clamping between them.
  • Figure 1 is a view of a portion of the combination resulting from mounting said tube in one of the jaws of said gripping means.
  • Figure 2 is a sectional view in which is shown said means for gripping said tube.
  • Figure 3 is an exploded view (Figure 3a) of the combination ( Figure 3b) as shown in Figure 2 and Figure 1.
  • Figures 4a and 4b are each a front view of a cross section of a jaw, in the open position, of the combination.
  • Figures 5a and 5b are each a front view of a cross section of a jaw, in the closed position, of the combination.
  • Figure 6 is an exploded view ( Figure 6a) of a particular embodiment of the combination according to the invention ( Figure 6b).
  • FIG. 1 is a view of a scaffolding part comprising, on the one hand, a tube t with an outer surface E and, on the other hand, a gripping means 1 provided with a first jaw 2 and a second jaw. 3, each of the jaws including a first part 4a (for the first jaw 2) and 4b (for the second jaw 3), and a second part 5a (for the first jaw 2) and 5b (for the second jaw 3).
  • Each of the jaw portions includes a first E1 and a second end E2.
  • the first end E1 of the first jaw portion 4a being connected to the first end E1 of the second jaw portion 5a by a connecting means 6 which comprises a first orifice 6a passing through each of the first ends E1 of the first 4a and second 5a portions of jaw.
  • a junction means 6b which is formed for example by a junction axis a r 1 (see also Figure 2), passes through each element present on the first ends E1 of first 4a and second 5a jaw portions 4, so as to allow the pivoting of a portion, for example 5a, of jaw with respect to the other, for example 4a, along the junction axis a r 1.
  • Figure 3 shows an exploded view (Figure 3a) of the device as shown in Figure 2 and Figure 1 (from another angle of view).
  • Figure 3b is a representation of the device as shown in Figure 2 or Figure 1 but at a different angle of view than those of Figures 1 and 2.
  • connection means 6 connecting the first end E1 of the first jaw portion 4a to the first end E1 of the second jaw portion 5a is composed of:
  • first and second orifices 6a2, 6a3 of first end E1 of first part 4a of jaw are first and second orifices 6a2, 6a3 of first end E1 of first part 4a of jaw.
  • the clamping means of the gripping means 1 comprises, in a known manner, a threaded rod 10 extended by a T-shaped head which is fitted into a first notch 1 1 located at the second end E2 of its second jaw portion 5a and through which a second orifice 6b passes.
  • the threaded rod 10 can thus rotate about an axis of rotation a r 2 passing through the notch 10 and the T-head which is nested therein.
  • This screw is further intended to be inserted into a second notch 13 located at the second end E2 of the second jaw portion 5a and to accommodate a wing nut 12 with a thread complementary to that of the threaded rod 10, at above the second notch 13, so that the second end E2 of the second jaw portion 5a is secured to the second end E2 of the first jaw portion 4a.
  • each jaw portion 4a, 5a (4b, 5b) comprises an inner surface 7a (for the first part 4a of a jaw) and 7b (for the second part 5a of a jaw) and an outer surface 8a (for the first jaw 2) and 8b (for the second jaw 3) (see also Figure 2).
  • first external surfaces 8a, 8b of each first jaw portion 4a, 4b are interconnected by a connecting pin 9 allowing the first and second rotation between them.
  • the second jaw along this axis has r 3 link.
  • FIG. 3a gives a detailed illustration of this connecting pin 9, a r 3 which may be for example a system comprising a fixing pin 9a arranged to pass through an orifice 8 'of first portion 4b of first jaw 2 and an orifice 8 " first portion 4a of second jaw 3, said tip being further arranged to connect to a 9b tip head to form the connecting pin 9, a r 3.
  • the inner surface of each jaw has a cross section.
  • the inner surface 7a of the first jaw portion 4a and the inner surface 7b of the second jaw portion 5a both have a profi! defined by a cross section composed of a first set of straight segments 16 and a second set of curvilinear segments 17.
  • the first set is formed of at least a first subassembly salt comprising at least one straight segment 16, said first subassembly being further arranged to be in contact with and to marry at least a portion of the first periphery of said second outer surface E of a tube t of polygonal cross section.
  • the second assembly is formed of at least a second subset se2 comprising at least one curvilinear segment 7, said second subset being further arranged to be in contact with and to marry at least a part of the first periphery of said second subset.
  • the first and second sets are distributed over a second inner surface circumference 7a, 7b of each part 4b, 5b of jaw 2,3.
  • tube cross-section and the cross-section of the profile of said inner surface 7a, 7b of each jaw portion 2b, 3b are mutually compatible to allow said contact and said clamping therebetween.
  • the inner surface 7a has a profile defined by a first set of straight segments which is formed of four subsets se11 to se14, while the second set of segments. curvilinear is formed of three sub-sets se21 to se23.
  • the inner surface 7b has a profile defined by a first set of straight segments which is formed of four subsets se15 to se18, while the second set of curvilinear segments is formed of three subsets se24 to se26.
  • the tube whose cross section is hexadecagonal is brought and placed on the inner surface 7a of the first jaw portion 4a.
  • the arrows 14 illustrate the routing of the tube which is oriented such that at least a portion of its polygonal cross-section is parallel to at least one straight segment of each first subset (se11 to se14). ) of the first set e1 of straight segments defining the polygonal cross section profile of the first jaw portion 4a.
  • first sides (201 to 204) of the polygonal cross section of the tube are arranged to cooperate with and conform to the shape of at least one straight segment of each first subset (salt 1 to se14) of the first set e1.
  • the second jaw portion 5a is then rotated in the opposite direction.
  • anti-watchmaker 17 along the axis a r 1 so that its inner surface 7b is brought into contact with four other second sides (205 to 208) available of the polygonal cross section of the tube t.
  • the arrows 14 illustrate the routing of the tube which is aligned such that at least a portion of its circular cross section is parallel to at least one curvilinear segment of each second subset (se21 to se23). ) of the second set e2 defining the circular cross section profile of the first jaw portion 4a.
  • at least a portion of the circular cross section of the tube is arranged to cooperate with and marry the shape of at least one curvilinear segment of each second subassembly (se21 to se23) of the second set e2 defining the cross sectional profile. circuiaire of the first part 4a of jaw.
  • the second part 5a jaw is then rotated in the anti-clockwise 17 according to charge a r 1 so that its inner surface 7b is brought into contact with the outer surface E available from the tube t.
  • the tube t of circular cross section compatible with the gripping means 1 has a diameter of between 30 and 60 mm, preferably between 45 and 55 mm, preferably 50 mm.
  • each jaw of the gripping means has a circular section of the inner surface of the parts of said jaw diameter between 30 and 60 mm, preferably between 45 and 55 mm, preferably 50 mm.
  • This circular inner surface section being defined by the succession of curvilinear segments composing this internal surface.
  • Figures 5a and 5b illustrate a cross section of the scaffolding part of Figure 1 consists of a closed jaw in which is mounted the tube.
  • FIG. 5a of this section, clearly appear the different contact zones, each defined by a contact surface formed between at least one straight segment 16 of a first subset of the cross-section of the inner surface. portions of said jaw and at least a polygonal cross-sectional portion of the tube.
  • the threaded rod is brought by rotation seion axis a r 2 to the second notch of the second end of the second part of jaw and placed in the second notch.
  • the wing nut is then placed on the threaded rod and screwed onto the threaded rod so that it maintains the clamping and the contact between the inner surface of the jaw parts and the outer surface of the tube, and thus obtaining the scaffolding part as shown in Figure 1.
  • Figure 6 is an exploded view ( Figure 6a) of a particular embodiment of the device according to the invention ( Figure 6b).
  • the first outer surfaces 8a, 8b of each first jaw portion 4a, 4b are integral with each other so that the tubes once mounted in the gripping means form an angle of 90 °.
  • polygonal cross section tube forming part of the combination according to the invention can also be mounted on a gripping means whose parts of each jaw has a conventional circular cross section.
  • the present invention is not limited to this octagonal cross section but also covers other forms of polygonal cross-sections such as hexagonal, heptagonal, and octagonal.

Abstract

Combination of a tube (t) having an external surface (E) and of a jaw (2) having an internal surface (7a, 7b), said internal surface being in contact with an external surface of said tube when said tube is mounted in said jaw, characterized in that said internal surface (7a, 7b) of each jaw part (2) has a cross section composed of a succession of straight segments (16) or curved segments (17), while said external surface (E) of said tube has a polygonal or circular cross section, said cross section of said tube and said cross section of said parts (4a, 5b) of said first jaw (2) being compatible with one another so as to allow said contact and said clamping between one another.

Description

Combinaison d'au moins un tube et d'au moins un moyen de préhension du tube  Combination of at least one tube and at least one tube gripping means
Combinaison d'au moins un tube et d'au moins un moyen de préhension dudit au moins un tube, ledit moyen de préhension comprenant une première mâchoire, chaque partie de ladite première mâchoire présentant une surface interne et une première surface externe, ladite surface interne étant en contact avec une deuxième surface externe dudit au moins un tube lorsque ledit tube est monté dans ladite mâchoire, ledit moyen de préhension comprenant au moins un moyen de serrage agencé pour serrer ladite surface interne desdites parties de mâchoire sur ladite deuxième surface externe dudit tube.  Combination of at least one tube and at least one gripping means of said at least one tube, said gripping means comprising a first jaw, each part of said first jaw having an inner surface and a first outer surface, said inner surface being in contact with a second outer surface of said at least one tube when said tube is mounted in said jaw, said gripping means comprising at least one clamping means arranged to clamp said inner surface of said jaw portions to said second outer surface of said tube .
Une telle combinaison est connue du document GB636594 et est par exemple utilisée pour le montage des échafaudages qui sont généralement constitués d'un ensemble de tubes reliés entre eux et sur lesquels peuvent être accrochés des accessoires tels que des projecteurs, des caméras, des microphones, ou encore des enceintes sonores.  Such a combination is known from document GB636594 and is for example used for mounting scaffolds which generally consist of a set of tubes interconnected and on which can be hung accessories such as projectors, cameras, microphones, or loudspeakers.
Les structures telles que décrites dans cet état de l'art sont construites à partir de tubes à section transversale polygonale reliés entre eux par un moyen de préhension te! que décrit ci-dessus dont la section transversale de la surface interne desdites parties de mâchoire est aussi polygonale, ledit moyen de préhension étant destiné à recevoir un tube qui est serré entre lesdites parties de mâchoire.  The structures as described in this state of the art are constructed from tubes of polygonal cross-section interconnected by a gripping means te! as described above whose cross-section of the inner surface of said jaw portions is also polygonal, said gripping means being adapted to receive a tube which is clamped between said jaw portions.
Par ailleurs, lesdits accessoires sont aussi destinés à être reliés auxdits tubes utilisés, par exemple, par une pince à section transversale polygonale agencée pour être serrée audit tube.  Furthermore, said accessories are also intended to be connected to said tubes used, for example, by a polygonal cross-section clamp arranged to be clamped to said tube.
Le type de combinaison telie que divulguée dans le document GB636594 a pour vocation de remplacer les structures d'échafaudage plus conventionnelles, constituées de tubes à section transversale circulaire et de moyens de préhension dont la section transversale de la surface interne desdites parties de mâchoire est aussi circulaire, et qui présentent le désavantage de voir chacun des tubes se mouvoir en rotation selon son axe longitudinal. Ce degré de liberté constitue une contrainte par exemple lors du montage sur les passerelles d'accessoires lourds (caméras, spots de lumière) qui, sous l'effet de la gravité, ont tendance à mettre lesdits tubes en mouvement de rotation. The type of combination as disclosed in GB636594 is intended to replace the more conventional scaffold structures, consisting of circular cross-section tubes and gripping means whose cross section of the inner surface of said jaw parts is also which have the disadvantage of seeing each of the tubes move in rotation along its longitudinal axis. This degree of freedom is a constraint for example when mounting on the catwalks of heavy accessories (cameras, light spots) which, under the effect of gravity, tend to put said tubes in rotation.
Eventuellement, dans ce type d'échafaudage, des accessoires peuvent en outre être connectés aux tubes par une pince à section transversale circulaire. Dans ce cas, des accessoires lourds reliés auxdits tubes, par exemple, par ce type de pince sont aussi susceptibles d'être mis en rotation autour desdits tubes sous l'effet de la gravité.  Optionally, in this type of scaffolding, accessories can also be connected to the tubes by a circular cross section clamp. In this case, heavy accessories connected to said tubes, for example, by this type of clamp are also likely to be rotated around said tubes under the effect of gravity.
Ainsi, la propension qu'ont les tubes ou les accessoires à quitter leur position initiale définie lors du montage de l'échafaudage s'avère être particulièrement embarrassante lorsqu'il s'agit de fixer de manière stable lesdits accessoires à une position définie sur la passerelle et dans une orientation précise. En effet, par exemple, le rendu des images d'un film ou de l'ambiance d'une scène de théâtre est tributaire, entre autre, des différents aspects techniques et esthétiques de l'éclairage, tels que le niveau de l'éclairement, le contraste entre la lumière et l'ombre, la température de couleur, et l'orientation de l'éclairage (de face, de contre-jour, latéral, etc.). Ainsi, pour peu que les sources d'éclairages soient mal orientées ou bougent pendant la prise de vue ou pendant le spectacle, la qualité dudit rendu peut être dramatiquement détériorée.  Thus, the propensity of the tubes or accessories to leave their initial position defined during the assembly of the scaffolding proves to be particularly embarrassing when it comes to stably attaching said accessories to a position defined on the gateway and in a precise orientation. Indeed, for example, the rendering of the images of a film or the atmosphere of a theater scene is dependent, among other things, on the different technical and aesthetic aspects of the lighting, such as the level of illumination. , the contrast between light and shade, the color temperature, and the orientation of the lighting (front, backlight, side, etc.). Thus, as long as the light sources are misguided or move during the shooting or during the show, the quality of said rendering can be dramatically deteriorated.
La combinaison telle que décrite dans le document GB636594, de par le fait que tant la surface externe du tube que la surface interne desdites parties de mâchoire du moyen de préhension, et éventuellement de la pince, présentent une section transversale polygonale, permet lors du montage de la structure d'échafaudage, la création d'un contact qui est assuré par différents points de contact au niveau de l'interface entre la surface interne de la mâchoire et la surface externe du tube. Dans ce contexte, les points de contacts, se forment entre le point d'intersection de deux côtés de la section transversale polygonale de la surface interne des parties de ladite mâchoire et le point d'intersection de deux côtés du pourtour polygonal dudit tube, de telle sorte qu'il y a alignement des côtés de la section transversale polygonale de la surface externe dudit tube et de la surface interne desdites parties de mâchoire pour former différentes surfaces de contact au niveau de l'interface entre la surface interne de la mâchoire et la surface externe du tube. The combination as described in GB636594, in that both the outer surface of the tube and the inner surface of said jaw portions of the gripping means, and possibly the gripper, have a polygonal cross section, allows during assembly of the scaffolding structure, creating a contact that is provided by different points of contact at the interface between the inner surface of the jaw and the outer surface of the tube. In this context, the points of contact, are formed between the point of intersection of two sides of the cross section polygon of the inner surface of the parts of said jaw and the point of intersection of two sides of the polygonal periphery of said tube, so that there is alignment of the sides of the polygonal cross section of the outer surface of said tube and the inner surface of said jaw portions to form different contact surfaces at the interface between the inner surface of the jaw and the outer surface of the tube.
De cette façon, la combinaison connue du document GB636594 permet aisément la fixation stable et dans une orientation et un aiignement précis de tubes et mâchoires entre eux et/ou d'accessoires sur les tubes lors du montage de la structure scénique ou de l'échafaudage.  In this way, the known combination of document GB636594 easily allows the stable attachment and in a precise orientation and alignment of tubes and jaws between them and / or accessories on the tubes during assembly of the stage structure or the scaffolding .
Toutefois, nonobstant l'avantage qu'apporte la combinaison divulguées dans le document GB636594, cette dernière reste d'utilisation contraignante dans la mesure où elle impose, lors du montage de la structure scénique ou d'échafaudage, l'emploi exclusif de tubes à section transversale polygonale en combinaison avec des moyens de préhension présentant aussi un profil de surface interne de mâchoire qui doit être de la même section transversale polygonale.  However, notwithstanding the advantage brought by the combination disclosed in document GB636594, the latter remains of constraining use insofar as it imposes, when mounting the stage structure or scaffolding, the exclusive use of polygonal cross section in combination with gripping means also having an inner jaw surface profile which must be of the same polygonal cross section.
Dès fors, l'homme de métier qui souhaite bénéficier des avantages de cette combinaison doit obligatoirement employer les tubes à section transversales polygonales avec des moyens de préhension au profil polygonal compatible.  From the outset, a person skilled in the art who wishes to benefit from the advantages of this combination must use the polygonal cross-section tubes with gripping means with a compatible polygonal profile.
Dans ce contexte, il existe donc un besoin d'obtenir une combinaison qui permette à l'homme de métier de disposer de plus de flexibilité lors du montage de la structure scénique ou d'échafaudage en autorisant ainsi l'homme de métier à employer tant des tubes de section transversale circulaire que des tubes de section transversale polygonale et ce, tout en permettant une fixation aisée et stable, dans une orientation et un alignement précis, de tubes et mâchoires entre eux et/ou d'accessoires sur les tubes lorsque le montage d'au moins une partie de la structure scénique ou de l'échafaudage l'exige, ce qui est le cas lorsque la structure scénique doit supporter des accessoires lourds. Dans ce cas, l'utilisation de tubes à section transversale polygonale pour cette partie de structure sera privilégiée. In this context, there is therefore a need to obtain a combination that allows the skilled person to have more flexibility when mounting the stage structure or scaffolding thereby allowing the skilled person to use both circular cross-section tubes as tubes of polygonal cross-section and this, while allowing easy and stable attachment, in a precise orientation and alignment, of tubes and jaws between them and / or accessories on the tubes when the at least a part of the stage structure or the scaffolding requires it, which is the case when the structure Scenic must support heavy accessories. In this case, the use of polygonal cross section tubes for this part of structure will be preferred.
L'avantage afférent à ce besoin est notoire : dès lors que l'homme de métier dispose déjà d'un stock de tubes à section transversale circulaire, ii peut donc utiliser au moins en partie ce stock et au moins un tube à section transversale polygonale pour construire des échafaudages ou des structures de type scénique, dont certaines parties doivent être montées de façon stable.  The advantage relating to this need is well known: since the skilled person already has a stock of circular cross-section tubes, he can therefore use at least part of this stock and at least one tube with a polygonal cross-section. to build scaffolding or scenic type structures, some parts of which must be stably mounted.
Pour pallier ce besoin, il est prévu suivant l'invention, une combinaison telle que décrite ci-dessus caractérisée en ce que ladite surface interne de chaque partie de mâchoire présente un profil défini par une section transversale composée d'un premier ensemble de segments droits et d'un deuxième ensemble de segments curvilignes, lesdits premier et deuxième ensembles étant répartis sur un premier pourtour de surface interne de chaque partie de mâchoire, au moins un premier sous- ensemble dudit premier ensemble de segments droits étant agencé pour être en contact avec et pour épouser au moins une partie de deuxième pourtour de ladite deuxième surface externe dudit tube lorsque ledit tube est de section transversale polygonale, au moins un deuxième sous- ensemble dudit deuxième ensemble de segments curvilignes étant agencé pour être en contact avec et pour épouser au moins une partie de pourtour de ladite deuxième surface externe dudit tube lorsque ledit tube est de section transversale circulaire, ladite section transversale dudit tube et ladite section transversale du profil de ladite surface interne de chaque partie de ladite première mâchoire étant compatibles entre elles pour permettre ledit contact et ledit serrage entre elles.  To overcome this need, it is provided according to the invention, a combination as described above characterized in that said inner surface of each jaw portion has a profile defined by a cross section composed of a first set of straight segments and a second set of curvilinear segments, said first and second sets being distributed over a first inner surface periphery of each jaw portion, at least a first subset of said first set of straight segments being arranged to be in contact with and to fit at least a second portion around said second outer surface of said tube when said tube is of polygonal cross-section, at least a second subset of said second set of curvilinear segments being arranged to contact and to marry at least one second portion; at least a portion of the periphery of said second outer surface of said tube when said tube e st of circular cross section, said cross section of said tube and said cross section of the profile of said inner surface of each portion of said first jaw being mutually compatible to allow said contact and said clamping therebetween.
De cette façon, le contact est assuré par différentes zones où un contact est créé au niveau de l'interface entre fa surface interne de ta mâchoire et la surface externe du tube. Lorsque le tube présente une section transversale polygonale, chaque zone de contact est définie entre une première partie de la deuxième surface externe dudit tube et une deuxième partie de la surface interne des parties de ladite mâchoire, ladite deuxième partie de surface interne de chaque partie de mâchoire présentant un profil défini par une section transversale composée dudit au moins un premier sous- ensemble de segments droits, de telie sorte qu'il y a alignement d'au moins un côté de la section transversale polygonale de la deuxième surface externe dudit tube avec au moins un segment droit dudit premier sous-ensemble de segments droits formant la deuxième partie de surface interne desdites parties de mâchoire. In this way, the contact is provided by different areas where a contact is created at the interface between the inner surface of the jaw and the outer surface of the tube. When the tube has a polygonal cross section, each contact zone is defined between a first portion of the second outer surface of said tube and a second portion of the inner surface of the portions of said jaw, said second inner surface portion of each portion of jaw having a profile defined by a cross section composed of said at least a first subset of straight segments, such that there is alignment of at least one side of the polygonal cross-section of the second outer surface of said tube with at least one straight segment of said first subset of straight segments forming the second inner surface portion of said jaw portions.
Lorsque le tube présente une section transversale circulaire, chaque zone de contact est définie entre une première partie de la deuxième surface externe dudit tube et une deuxième partie de la surface interne des parties de ladite mâchoire, ladite deuxième partie de surface interne de chaque partie de mâchoire présentant un profil défini par une section transversale composée dudit au moins un deuxième sous- ensemble de segments curvilignes, de telle sorte qu'il y a alignement de la section transversale circulaire de la deuxième surface externe dudit tube avec au moins un segment curviligne dudit deuxième sous-ensemble de segments curvilignes formant la deuxième partie de surface interne desdites parties de mâchoire.  When the tube has a circular cross section, each contact zone is defined between a first portion of the second outer surface of said tube and a second portion of the inner surface of the portions of said jaw, said second inner surface portion of each portion of jaw having a profile defined by a cross section composed of said at least a second subset of curvilinear segments, such that there is alignment of the circular cross-section of the second outer surface of said tube with at least one curvilinear segment of said second subset of curvilinear segments forming the second inner surface portion of said jaw portions.
Les zones de contacts correspondent à des zones de pression définies par une surface de contact sur laquelle s'exerce ladite pression et qui est définie à l'interface entre la deuxième surface externe du tube et les surfaces interne de mâchoire lors du serrage.  The contact areas correspond to pressure zones defined by a contact surface on which said pressure is exerted and which is defined at the interface between the second outer surface of the tube and the internal jaw surfaces during clamping.
De cette façon, l'homme de métier dispose donc d'un moyen de préhension compatible tant pour les tubes de section transversale polygonale que pour les tubes de section transversale circulaire.  In this way, the skilled person therefore has a gripping means compatible for both polygonal cross section tubes and circular cross section tubes.
L'avantage d'un telle combinaison réside donc en ce que l'homme de métier qui doit monter un échafaudage ou une structure scénique pourra utiliser tantôt un tube à section transversale circulaire, tantôt un tube à section transversale polygonale en fonction de ses besoins tout en utilisant le même moyen de préhension. Ainsi, si certains tubes de la structure scénique doivent supporter des accessoires lourds, l'utilisation d'un tube à section transversale polygonale sera préférée à celle d'un tube à section transversale circulaire, puisque ies tubes à section transversale polygonale permette le montage dans une orientation prédéterminée et stable de ce type d'accessoire, le moyen de préhension selon l'invention permettant de relier à la demande un tube à section transversale circulaire à un tube dont la section transversale est polygonale. The advantage of such a combination therefore lies in the fact that the person skilled in the art who must erect a scaffolding or a structure Scenic can use sometimes a circular cross section tube, sometimes a polygonal cross section tube according to its needs while using the same gripping means. Thus, if some tubes of the stage structure are to support heavy accessories, the use of a polygonal cross-section tube will be preferred to that of a circular cross-section tube, since the polygonal cross-section tubes allow mounting in a predetermined and stable orientation of this type of accessory, the gripping means according to the invention for connecting on demand a circular cross section tube to a tube whose cross section is polygonal.
Dans une forme de réalisation particulière, ladite combinaison est caractérisée en ce que ladite section transversale polygonale de ladite surface externe dudit tube est choisie parmi les formes pentagonales, hexagonales, heptagonales, et octogonales.  In a particular embodiment, said combination is characterized in that said polygonal cross section of said outer surface of said tube is selected from pentagonal, hexagonal, heptagonal, and octagonal shapes.
De préférence, ladite combinaison est caractérisée en ce que lorsque la mâchoire est fermée, le profil desdites surfaces internes de chaque partie de mâchoire est au moins défini par une section transversale dont la pluralité de segment droits définit une forme polygonale, ou sensiblement polygonale, choisie parmi les formes pentagonales, hexagonales, heptagonales, et octogonales.  Preferably, said combination is characterized in that when the jaw is closed, the profile of said internal surfaces of each jaw portion is at least defined by a cross section whose plurality of straight segments defines a polygonal shape, or substantially polygonal, chosen among the pentagonal, hexagonal, heptagonal, and octagonal forms.
De manière avantageuse, le nombre de côtés de la section polygonale du tube est supérieure à 5, de préférence comprise entre 5 et 8.  Advantageously, the number of sides of the polygonal section of the tube is greater than 5, preferably between 5 and 8.
De cette façon, il y a création, lors de la mise en contact du tube avec les surfaces internes de la mâchoire, d'un nombre optimal de zones de contact. Par un nombre optimal de zones de contact, on entend au sens de l'invention un nombre compris entre 5 et 8, de préférence valant 5 ou 6, de façon à assurer le montage stable du tube à section transversale polygonale dans la mâchoire tout en évitant une éventuelle déformation de la section transversale polygonale dudit tube lors du serrage de ce dernier dans iadite mâchoire. In this way, when the tube is brought into contact with the inner surfaces of the jaw, an optimum number of contact zones is created. For the purposes of the invention, an optimum number of contact zones is understood to be a number between 5 and 8, preferably 5 or 6, so as to ensure the stable mounting of the polygonal cross section tube in the jaw while avoiding a possible deformation of the polygonal cross section of said tube during the clamping of the latter in iadite jaw.
Ce nombre optimal de zones de contact dépend bien entendu du diamètre des tubes qui est généralement compris entre 30 et 50 mm pour des échafaudages tels que ceux utilisé dans le milieu du spectacle. En effet, d'un côté, si le nombre de points de contact est supérieur à 8, lors du serrage, une pression générée sur chaque zone de contact est trop faible que pour empêcher la rotation du tube ou du moyen de préhension lors du montage de l'échafaudage. Ainsi, pour des pourtours de tube ou de mâchoire dont le diamètre ne dépasse pas 50 mm, un pourtour à plus de 8 côtés devient assimilable à un pourtour circulaire tant la pression sur chaque zone de contact telle qu'elle ne permet pas de maintenir ces zones de contact. Dès lors, si le nombre de points de contact est supérieur à 8, i! est compliqué d'aligner les moyens de préhension entre eux sur un même tube puisque la taille des segments constituant le pourtour n'est pas suffisamment grande que pour obtenir des zones de contact franches à l'interface entre la deuxième surface externe de tube et !a surface interne de la mâchoire du moyen de préhension lorsque ce dernier est serré sur le tube.  This optimal number of contact zones of course depends on the diameter of the tubes which is generally between 30 and 50 mm for scaffolds such as those used in the entertainment industry. Indeed, on the one hand, if the number of contact points is greater than 8, during clamping, a pressure generated on each contact zone is too small to prevent rotation of the tube or the gripping means during assembly. scaffolding. Thus, for perimeters of tube or jaw whose diameter does not exceed 50 mm, a periphery with more than 8 sides becomes comparable to a circular circumference as the pressure on each contact zone as it does not allow to maintain these contact areas. Therefore, if the number of contact points is greater than 8, i! is complicated to align the gripping means with each other on the same tube since the size of the segments constituting the periphery is not large enough to obtain contact areas frank to the interface between the second outer surface of tube and! internal surface of the jaw of the gripping means when the latter is clamped on the tube.
D'un autre côté si le nombre de zones de contact est inférieur à 5, il y a un risque de voir, lors du serrage, une pression élevée localisée sur lesdits zones de contact formées entre le pourtour de l'enveloppe extérieure du tube et Sa surface interne de la mâchoire. Ceci peut résulter en la déformation, au moins partielle, de ladite enveloppe extérieure du tube et donc de compromettre la stabilité de l'échafaudage, et ce aussi pour un usage ultérieur lors d'un autre montage d'échafaudage.  On the other hand, if the number of contact zones is less than 5, there is a risk that, when clamping, a high localized pressure is applied to said contact zones formed between the periphery of the outer casing of the tube and Its inner surface of the jaw. This may result in the deformation, at least partially, of said outer casing of the tube and thus compromise the stability of the scaffolding, and also for later use in another scaffolding assembly.
Dans un mode préféré de réalisation selon l'invention, ledit tube est un tube téléscopique.  In a preferred embodiment of the invention, said tube is a telescopic tube.
Selon différents modes de réalisation de la combinaison selon l'invention, qui pourront être pris ensemble ou séparément : la combinaison comprend une deuxième mâchoire ayant une deuxième surface externe d'une des parties de mâchoire qui est reliée à un point de contact de ladite première surface externe d'une des parties de ladite première mâchoire, par un axe de liaison passant par ledit point de contact et permettant la rotation de ladite première et de ladite deuxième mâchoire selon cet axe de liaison ; According to different embodiments of the combination according to the invention, which can be taken together or separately: the combination comprises a second jaw having a second outer surface of one of the jaw portions which is connected to a point of contact of said first outer surface of one of the portions of said first jaw by a connecting pin passing through said point contact and allowing the rotation of said first and said second jaw along said connecting axis;
chacune des parties de mâchoire comprend une première et une deuxième extrémité, lesdites premières extrémités de chacune des parties de mâchoire étant reliées entre elles par un moyen de connexion, ledit moyen de connexion comprenant au moins un premier orifice traversant lesdites premières extrémités de chacune des parties de mâchoire et au moins un moyen de jonction, agencé pour traverser ledit au moins un premier orifice présent sur lesdites premières extrémités des parties de mâchoire, de telle sorte que, lorsque ladite mâchoire est fermée, les surfaces internes se font face ; et each of the jaw portions includes a first and a second end, said first ends of each of the jaw portions being interconnected by a connecting means, said connecting means including at least a first orifice passing through said first ends of each of the parts jaw assembly and at least one connecting means arranged to pass through said at least one first aperture on said first ends of the jaw portions, such that when said jaw is closed, the inner surfaces face each other; and
ledit moyen de serrage comprend une encoche située au niveau de ladite deuxième extrémité d'une première partie de mâchoire, chaque paroi latérale de ladite encoche étant traversée par un deuxième orifice, lesdits deuxièmes orifices de chaque parois latérale se faisant face, et en ce que ledit moyen de serrage comprend en outre une tige filetée prolongée d'une tête en forme de T, ladite tête en forme de T étant reliée à ladite deuxième extrémité de ladite première partie de mâchoire extrémité en étant engagée dans ladite première encoche, chaque extrémité de ladite tête en forme de T traversant ledit deuxième orifice situé sur chaque paroi latérale de ladite encoche, permettant la rotation de ladite tige filetée selon un axe passant par lesdits deuxièmes orifices, ladite tige étant en outre destinée, lorsque ladite mâchoire est fermée, à être logée provisoirement dans une deuxième encoche située au niveau de ladite deuxième extrémité d'une deuxième partie de mâchoire, ledit moyen de serrage comprenant par ailleurs un écrou au pas de vis complémentaire à celui de ladite tige filetée, ledit écrou étant destiné à être visé sur ladite tige lorsque cette dernière est logée dans ladite deuxième encoche de telle sorte que ladite deuxième extrémité de ladite deuxième partie de mâchoire soit connectée définitivement à ladite deuxième extrémité de ladite première partie de mâchoire. said clamping means comprises a notch located at said second end of a first jaw portion, each side wall of said notch being traversed by a second orifice, said second orifices of each side wall facing each other, and that said clamping means further comprises an extended threaded rod of a T-shaped head, said T-shaped head being connected to said second end of said first end jaw portion engaged in said first notch, each end of said T-shaped head passing through said second orifice located on each side wall of said notch, allowing the rotation of said threaded rod along an axis passing through said second orifices, said rod being further intended, when said jaw is closed, to be housed temporarily in a second notch located at level of said second end of a second jaw portion, said clamping means further comprising a screw thread nut complementary to that of said threaded rod, said nut being intended to be aimed at said rod when the latter is housed in said second notch such that said second end of said second jaw portion is permanently connected to said second end of said first jaw portion.
D'autres formes de réalisation de la combinaison selon l'invention sont indiquées dans les revendications annexées.  Other embodiments of the combination according to the invention are indicated in the appended claims.
La présente invention porte par ailleurs sur un tube faisant partie de ladite combinaison selon l'invention, caractérisé en ce qu'il présente une section transversale polygonale ou circulaire.  The present invention also relates to a tube forming part of said combination according to the invention, characterized in that it has a polygonal or circular cross section.
D'autres formes de réalisation du tube selon l'invention sont indiquées dans les revendications annexées.  Other embodiments of the tube according to the invention are indicated in the appended claims.
La présente invention concerne aussi un moyen de préhension faisant partie de ladite combinaison selon l'invention, caractérisé en ce que ladite surface interne de chaque partie de mâchoire présente un profil défini par une section transversale composée d'une pluralité de segments droits et d'une pluralité de segments curvilignes, chacun desdits segments droits étant agencé pour être en contact avec et pour épouser au moins une partie de pourtour de ladite surface externe dudit tube de section transversale polygonale, chacun des segments curvilignes étant agencé pour être en contact avec et pour épouser au moins une partie de pourtour de !adite surface externe dudit tube de section transversale circulaire, ladite section transversale dudit tube et ladite section transversale du profil de ladite surface interne de chaque partie de ladite première mâchoire étant compatibles entre elles pour permettre ledit contact et ledit serrage entre elles. The present invention also relates to a gripping means forming part of said combination according to the invention, characterized in that said inner surface of each jaw portion has a profile defined by a cross section composed of a plurality of straight segments and a plurality of curvilinear segments, each of said straight segments being arranged to contact and to conform to at least a circumferential portion of said outer surface of said polygonal cross-section tube, each of the curvilinear segments being arranged to be in contact with and for marry at at least a portion of periphery of said outer surface of said circular cross-section tube, said cross-section of said tube and said cross-section of the profile of said inner surface of each portion of said first jaw being mutually compatible to allow said contact and said clamping between them.
D'autres formes de réalisation du moyen de préhension selon l'invention sont indiquées dans les revendications annexées.  Other embodiments of the gripping means according to the invention are indicated in the appended claims.
D'autres caractéristiques, détails et avantages de l'invention ressortiront de la description donnée ci-après, à titre non limitatif et en faisant référence aux dessins annexés. Dans les dessins :  Other features, details and advantages of the invention will become apparent from the description given below, without limitation and with reference to the accompanying drawings. In the drawings:
La figure 1 est une vue d'une partie de la combinaison résultant du montage dudit tube dans une des mâchoires dudit moyen de préhension.  Figure 1 is a view of a portion of the combination resulting from mounting said tube in one of the jaws of said gripping means.
La figure 2 est une vue en coupe dans lequel est représenté ledit moyen de préhension dudit tube.  Figure 2 is a sectional view in which is shown said means for gripping said tube.
La figure 3 est une vue éclatée (figure 3a) de la combinaison (figure 3b) tel qu'illustrée à la figure 2 et à la figure 1 .  Figure 3 is an exploded view (Figure 3a) of the combination (Figure 3b) as shown in Figure 2 and Figure 1.
Les figure 4a et 4b sont chacune une vue de face d'une coupe transversale d'une mâchoire, en position ouverte, de la combinaison.  Figures 4a and 4b are each a front view of a cross section of a jaw, in the open position, of the combination.
Les figure 5a et 5b sont chacune une vue de face d'une coupe transversale d'une mâchoire, en position fermée, de la combinaison.  Figures 5a and 5b are each a front view of a cross section of a jaw, in the closed position, of the combination.
La figure 6 est une vue éclatée (figure 6a) d'un mode de réalisation particulier de la combinaison selon l'invention (figure 6b).  Figure 6 is an exploded view (Figure 6a) of a particular embodiment of the combination according to the invention (Figure 6b).
Sur les figures, les éléments analogues portent le même numéro de référence.  In the figures, like elements have the same reference number.
La figure 1 est une vue d'une partie d'échafaudage comprenant, d'une part un tube t avec une surface externe E et, d'autre part, un moyen de préhension 1 muni d'une première mâchoire 2 et une deuxième mâchoire 3, chacune des mâchoires comprenant une première partie 4a (pour la première mâchoire 2) et 4b (pour la deuxième mâchoire 3), et une deuxième partie 5a (pour la première mâchoire 2) et 5b (pour la deuxième mâchoire 3). FIG. 1 is a view of a scaffolding part comprising, on the one hand, a tube t with an outer surface E and, on the other hand, a gripping means 1 provided with a first jaw 2 and a second jaw. 3, each of the jaws including a first part 4a (for the first jaw 2) and 4b (for the second jaw 3), and a second part 5a (for the first jaw 2) and 5b (for the second jaw 3).
Chacune des parties de mâchoire comprend une première E1 et une deuxième extrémité E2. La première extrémité E1 de la première partie 4a de mâchoire étant reliée à la première extrémité E1 de la deuxième partie 5a mâchoire par un moyen de connexion 6 qui comprend un premier orifice 6a traversant chacune des premières extrémités E1 des première 4a et deuxième 5a parties de mâchoire.  Each of the jaw portions includes a first E1 and a second end E2. The first end E1 of the first jaw portion 4a being connected to the first end E1 of the second jaw portion 5a by a connecting means 6 which comprises a first orifice 6a passing through each of the first ends E1 of the first 4a and second 5a portions of jaw.
Un moyen de jonction 6b, qui est par exemple formé par un axe de jonction ar1 (voir aussi figure 2), traverse chaque onfice présent sur les premières extrémités E1 de première 4a et de deuxième 5a parties de mâchoire 4, de façon à permettre le pivotement d'une partie, par exemple 5a, de mâchoire par rapport à l'autre, par exemple 4a, selon l'axe de jonction ar1 . A junction means 6b, which is formed for example by a junction axis a r 1 (see also Figure 2), passes through each element present on the first ends E1 of first 4a and second 5a jaw portions 4, so as to allow the pivoting of a portion, for example 5a, of jaw with respect to the other, for example 4a, along the junction axis a r 1.
A titre indicatif, la figure 3 représente une vue éclatée (figure 3a) du dispositif tel qu'illustré à la figure 2 et à la figure 1 (sous un autre angle de vue). La figure 3b est une représentation du dispositif tel qu'illustré à la figure 2 ou à la figure 1 mais sous un angle de vue différent que ceux desdites figures 1 et 2.  As an indication, Figure 3 shows an exploded view (Figure 3a) of the device as shown in Figure 2 and Figure 1 (from another angle of view). Figure 3b is a representation of the device as shown in Figure 2 or Figure 1 but at a different angle of view than those of Figures 1 and 2.
Comme l'illustre la figure 3a, le moyen de connexion 6 qui relie la première extrémité E1 de la première partie 4a de mâchoire à la première extrémité E1 de la deuxième partie 5a mâchoire est composé :  As shown in FIG. 3a, the connection means 6 connecting the first end E1 of the first jaw portion 4a to the first end E1 of the second jaw portion 5a is composed of:
- d'un orifice 6a1 de première extrémité E1 de deuxième partie 5a de mâchoire ; et  an orifice 6a1 of first end E1 of second part 5a of jaw; and
- d'un premier et d'un deuxième orifices 6a2, 6a3 de première extrémité E1 de première partie 4a de mâchoire.  first and second orifices 6a2, 6a3 of first end E1 of first part 4a of jaw.
Les premières extrémités E1 de première 4a et de deuxième 5a parties de mâchoire sont destinées à être reliées entre-elles par une goupille 6' agencée pour s'emboiter dans les orifices 6a1 à 6a3. Dans la forme de réalisation particulière telle qu'illustrée dans la figure 1 , le moyen de serrage du moyen préhension 1 comprend de façon connue une tige filetée 10 prolongée d'une tête en forme de T qui est emboîtée dans une première encoche 1 1 située au niveau de la deuxième extrémité E2 de Sa deuxième partie 5a de mâchoire et traversée par un deuxième orifice 6b. La tige filetée 10 peut ainsi pivoter selon un axe de rotation ar2 passant par l'encoche 10 et la tête en T qui y est emboîtée. Cette vis est en outre destinée à être insérée dans une deuxième encoche 13 située au niveau de la deuxième extrémité E2 de ia deuxième partie de mâchoire 5a et à accueillir un écrou papillon 12 au pas de vis complémentaire à celui de la tige filetée 10, au-dessus de la deuxième encoche 13, de telle sorte que la deuxième extrémité E2 de la deuxième partie 5a de mâchoire soit rendue solidaire à la deuxième extrémité E2 de la première partie 4a de mâchoire. The first ends E1 of first 4a and second 5a jaw portions are intended to be interconnected by a pin 6 'arranged to fit into the openings 6a1 to 6a3. In the particular embodiment as illustrated in FIG. 1, the clamping means of the gripping means 1 comprises, in a known manner, a threaded rod 10 extended by a T-shaped head which is fitted into a first notch 1 1 located at the second end E2 of its second jaw portion 5a and through which a second orifice 6b passes. The threaded rod 10 can thus rotate about an axis of rotation a r 2 passing through the notch 10 and the T-head which is nested therein. This screw is further intended to be inserted into a second notch 13 located at the second end E2 of the second jaw portion 5a and to accommodate a wing nut 12 with a thread complementary to that of the threaded rod 10, at above the second notch 13, so that the second end E2 of the second jaw portion 5a is secured to the second end E2 of the first jaw portion 4a.
Par ailleurs, chaque partie de mâchoire 4a, 5a (4b, 5b) comprend une surface interne 7a (pour la première partie 4a d'une mâchoire) et 7b (pour la deuxième partie 5a d'une mâchoire) et une surface externe 8a (pour la première mâchoire 2) et 8b (pour la deuxième mâchoire 3) (voir aussi figure 2).  Furthermore, each jaw portion 4a, 5a (4b, 5b) comprises an inner surface 7a (for the first part 4a of a jaw) and 7b (for the second part 5a of a jaw) and an outer surface 8a ( for the first jaw 2) and 8b (for the second jaw 3) (see also Figure 2).
Dans le mode particulier de réalisation tel que décrit à la figure 2, les premières surfaces externes 8a, 8b de chaque première partie de mâchoire 4a, 4b sont reliées entre elles par un axe de liaison 9 permettant la rotation entre elles de la première et de la deuxième mâchoire selon cet axe ar3 de liaison. In the particular embodiment as described in FIG. 2, the first external surfaces 8a, 8b of each first jaw portion 4a, 4b are interconnected by a connecting pin 9 allowing the first and second rotation between them. the second jaw along this axis has r 3 link.
La figure 3a donne une illustration détaillée de cet axe de liaison 9, ar3 qui peut être par exemple un système comprenant une pointe de fixation 9a agencée pour traverser un orifice 8' de première partie 4b de première mâchoire 2 et un orifice 8" de première partie 4a de deuxième mâchoire 3, ladite pointe étant en outre agencée pour se connecter à une 9b tête de pointe pour former l'axe de liaison 9, ar3. Comme l'illustre les figures 4a et 4b, la surface interne de chaque mâchoire présente une section transversale . La surface interne 7a de la première partie 4a de mâchoire et ia surface interne 7b de la deuxième partie 5a de mâchoire présentent toutes deux un profi! défini par une section transversale composée d'un premier ensemble de segments droits 16 et d'un deuxième ensemble de segments curvilignes 17. FIG. 3a gives a detailed illustration of this connecting pin 9, a r 3 which may be for example a system comprising a fixing pin 9a arranged to pass through an orifice 8 'of first portion 4b of first jaw 2 and an orifice 8 " first portion 4a of second jaw 3, said tip being further arranged to connect to a 9b tip head to form the connecting pin 9, a r 3. As illustrated in Figures 4a and 4b, the inner surface of each jaw has a cross section. The inner surface 7a of the first jaw portion 4a and the inner surface 7b of the second jaw portion 5a both have a profi! defined by a cross section composed of a first set of straight segments 16 and a second set of curvilinear segments 17.
Le premier ensemble est formé d'au moins un premier sous- ensemble sel comprenant au moins un segment droit 16, ledit premier sous-ensemble sel étant en outre agencé pour être en contact avec et pour épouser au moins une partie de premier pourtour de ladite deuxième surface externe E d'un tube t de section transversale polygonale.  The first set is formed of at least a first subassembly salt comprising at least one straight segment 16, said first subassembly being further arranged to be in contact with and to marry at least a portion of the first periphery of said second outer surface E of a tube t of polygonal cross section.
Le deuxième ensemble est formé d'au moins un deuxième sous-ensemble se2 comprenant au moins un segment curviligne 7, ledit deuxième sous-ensemble étant en outre agencé pour être en contact avec et pour épouser au moins une partie de premier pourtour de ladite deuxième surface externe E d'un tube t de section transversale circulaire  The second assembly is formed of at least a second subset se2 comprising at least one curvilinear segment 7, said second subset being further arranged to be in contact with and to marry at least a part of the first periphery of said second subset. outer surface E of a tube t of circular cross section
Les premier et deuxième ensembles sont répartis sur un deuxième pourtour de surface interne 7a, 7b de chaque partie 4b, 5b de mâchoire 2,3.  The first and second sets are distributed over a second inner surface circumference 7a, 7b of each part 4b, 5b of jaw 2,3.
En outre, ta section transversale de tube et la section transversale du profil de ladite surface interne 7a, 7b de chaque partie 4b, 5b de mâchoire 2, 3 sont compatibles entre elles pour permettre ledit contact et ledit serrage entre elles.  In addition, the tube cross-section and the cross-section of the profile of said inner surface 7a, 7b of each jaw portion 2b, 3b are mutually compatible to allow said contact and said clamping therebetween.
Dans le contexte de la figure 4a, pour la première partie 4a de mâchoire, la surface interne 7a présente un profil défini par un premier ensemble de segments droits qui est formé de quatre sous-ensembies se11 à se14, tandis que le deuxième ensemble de segments curvilignes est formé de trois sous-ensembies se21 à se23.  In the context of Figure 4a, for the first jaw portion 4a, the inner surface 7a has a profile defined by a first set of straight segments which is formed of four subsets se11 to se14, while the second set of segments. curvilinear is formed of three sub-sets se21 to se23.
Pour la deuxième partie 5a de mâchoire, la surface interne 7b présente un profil défini par un premier ensemble de segments droits qui est formé de quatre sous-ensembles se15 à se18, tandis que le deuxième ensemble de segments curvilignes est formé de trois sous- ensembles se24 à se26. For the second jaw portion 5a, the inner surface 7b has a profile defined by a first set of straight segments which is formed of four subsets se15 to se18, while the second set of curvilinear segments is formed of three subsets se24 to se26.
Lors du montage de l'échafaudage, le tube dont la section transversale est hexadécagonale, est amené et placé sur la surface interne 7a de la première partie de mâchoire 4a.  When mounting the scaffold, the tube whose cross section is hexadecagonal, is brought and placed on the inner surface 7a of the first jaw portion 4a.
Sur la figure 4a, les flèches 14 illustrent l'acheminement du tube qui est orienté de telle sorte qu'au moins une partie de de sa section transversale polygonale soit parallèle à au moins un segment droit de chaque premier sous-ensemble (se11 à se14) du premier ensemble e1 de segments droits définissant le profil de section transversale polygonale de la première partie 4a de mâchoire.  In FIG. 4a, the arrows 14 illustrate the routing of the tube which is oriented such that at least a portion of its polygonal cross-section is parallel to at least one straight segment of each first subset (se11 to se14). ) of the first set e1 of straight segments defining the polygonal cross section profile of the first jaw portion 4a.
Ainsi, quatre premiers côtés (201 à 204) de la section transversale polygonale du tube sont agencés pour coopérer avec et épouser la forme d'au moins un segment droit de chaque premier sous- ensemble (sel 1 à se14) du premier ensemble e1.  Thus, four first sides (201 to 204) of the polygonal cross section of the tube are arranged to cooperate with and conform to the shape of at least one straight segment of each first subset (salt 1 to se14) of the first set e1.
Une fois que quatre premiers côtés (201 à 204) de la surface externe E du tube t sont mis en contact avec la surface interne 7a de la première partie 4a de mâchoire, la deuxième partie 5a de mâchoire est alors mise en rotation dans le sens anti-horloger 17 selon l'axe ar1 de telle sorte que sa surface interne 7b soit amenée au contact de quatre autres deuxièmes côtés (205 à 208) disponibles de la section transversale polygonale du tube t. Once four first sides (201 to 204) of the outer surface E of the tube t are brought into contact with the inner surface 7a of the first jaw portion 4a, the second jaw portion 5a is then rotated in the opposite direction. anti-watchmaker 17 along the axis a r 1 so that its inner surface 7b is brought into contact with four other second sides (205 to 208) available of the polygonal cross section of the tube t.
De manière similaire, lors du montage de l'échafaudage, le tube dont la section transversale est circulaire, est amené et placé sur la surface interne 7a de la première partie de mâchoire 4a (figure 4b).  Similarly, when mounting the scaffold, the tube whose cross section is circular, is brought and placed on the inner surface 7a of the first jaw portion 4a (Figure 4b).
Sur la figure 4b, les flèches 14 illustrent l'acheminement du tube qui est aligné de telle sorte qu'au moins une partie de de sa section transversale circulaire soient parallèle à au moins un segment curviligne de chaque deuxième sous-ensemble (se21 à se23) du deuxième ensemble e2 définissant le profil de section transversale circulaire de la première partie 4a de mâchoire. Ainsi, au moins une partie de la section transversale circulaire du tube est agencée pour coopérer avec et épouser la forme d'au moins un segment curviligne de chaque deuxième sous-ensemble (se21 à se23) du deuxième ensemble e2 définissant ie profil de section transversale circuiaire de la première partie 4a de mâchoire. In Fig. 4b, the arrows 14 illustrate the routing of the tube which is aligned such that at least a portion of its circular cross section is parallel to at least one curvilinear segment of each second subset (se21 to se23). ) of the second set e2 defining the circular cross section profile of the first jaw portion 4a. Thus, at least a portion of the circular cross section of the tube is arranged to cooperate with and marry the shape of at least one curvilinear segment of each second subassembly (se21 to se23) of the second set e2 defining the cross sectional profile. circuiaire of the first part 4a of jaw.
Une fois la partie de surface externe E du tube t mise en contact avec la surface interne 7a de la première partie 4a de mâchoire, la deuxième partie 5a de mâchoire est alors mise en rotation dans le sens anti-horloger 17 selon Taxe ar1 de telle sorte que sa surface interne 7b soit amenée au contact de la surface externe E disponible du tube t. Once the outer surface portion E of the tube T into contact with the inner surface 7a of the first portion 4a of jaw, the second part 5a jaw is then rotated in the anti-clockwise 17 according to charge a r 1 so that its inner surface 7b is brought into contact with the outer surface E available from the tube t.
De préférence, le tube t de section transversale circulaire compatible avec le moyen de préhension 1 présente un diamètre compris entre 30 et 60 mm, de préférence compris entre 45 et 55 mm, avantageusement de 50 mm.  Preferably, the tube t of circular cross section compatible with the gripping means 1 has a diameter of between 30 and 60 mm, preferably between 45 and 55 mm, preferably 50 mm.
Avantageusement, chaque mâchoire du moyen de préhension présente une section circulaire de la surface interne des parties de ladite mâchoire de diamètre compris entre 30 et 60 mm, de préférence compris entre 45 et 55 mm, avantageusement de 50 mm.  Advantageously, each jaw of the gripping means has a circular section of the inner surface of the parts of said jaw diameter between 30 and 60 mm, preferably between 45 and 55 mm, preferably 50 mm.
Cette section circulaire de surface interne étant définie par la succession segments curvilignes composant cette surface interne.  This circular inner surface section being defined by the succession of curvilinear segments composing this internal surface.
Les figures 5a et 5b illustrent une coupe transversale de la partie d'échafaudage de la figure 1 constituée d'une mâchoire fermée dans laquelle est monté le tube.  Figures 5a and 5b illustrate a cross section of the scaffolding part of Figure 1 consists of a closed jaw in which is mounted the tube.
En ce qui concerne la figure 5a, de cette coupe, apparaissent clairement les différentes zones de contact, chacune définie par une surface de contact formée entre au moins un segment droit 16 d'un premier sous-ensembie de la section transversale de la surface interne des parties de ladite mâchoire et au moins une partie de section transversale polygonale du tube.  With regard to FIG. 5a, of this section, clearly appear the different contact zones, each defined by a contact surface formed between at least one straight segment 16 of a first subset of the cross-section of the inner surface. portions of said jaw and at least a polygonal cross-sectional portion of the tube.
Ainsi, il y a alignement de ladite au moins une partie de section transversale polygonale du tube (par exemple T1 ) et d'au moins un segment droit de la surface interne desdites parties de mâchoire (par exemple M1 ). Thus, there is alignment of said at least one polygonal cross-sectional portion of the tube (eg T1) and at least one straight segment of the inner surface of said jaw portions (eg M1).
En ce qui concerne la figure 5b, de cette coupe, apparaissent clairement les différentes surfaces de contact formées entre au moins un segment curviligne d'un deuxième sous-ensemble de la section transversale de la surface interne des parties de ladite mâchoire et au moins une partie de section transversale circulaire du tube.  With regard to FIG. 5b, of this section, clearly appear the different contact surfaces formed between at least one curvilinear segment of a second subset of the cross section of the internal surface of the parts of said jaw and at least one part of circular cross section of the tube.
Ainsi, il y a alignement de ladite au moins une partie de section transversale circulaire du tube (par exemple C1 ) et d'au moins un segment curviligne de la surface interne desdites parties de mâchoire (par exemple S1 ).  Thus, there is alignment of said at least one circular cross-sectional portion of the tube (eg C1) and at least one curvilinear segment of the inner surface of said jaw portions (eg S1).
Une fois la deuxième partie 5a de mâchoire refermée sur le tube t pour obtenir la combinaison illustrée aux figures 1 et 2, la tige filetée est amenée par rotation seion l'axe ar2 vers la deuxième encoche de la deuxième extrémité de la deuxième partie de mâchoire et placée dans la deuxième encoche. L'écrou papillon est ensuite placé sur la tige filetée et vissé sur cette dernière de telle sorte qu'il permette de maintenir le serrage et le contact entre la surface interne des parties de mâchoire et la surface externe du tube, et d'obtenir ainsi la partie d'échafaudage tel qu'illustré à la figure 1. Once the second part 5a of jaw closed on the tube t to obtain the combination illustrated in Figures 1 and 2, the threaded rod is brought by rotation seion axis a r 2 to the second notch of the second end of the second part of jaw and placed in the second notch. The wing nut is then placed on the threaded rod and screwed onto the threaded rod so that it maintains the clamping and the contact between the inner surface of the jaw parts and the outer surface of the tube, and thus obtaining the scaffolding part as shown in Figure 1.
Dans le cas d'une combinaison d'un tube à section transversale polygonal avec le moyen de préhension selon l'invention, une fois le tube serré dans la mâchoire, une prise entre le tube et le moyen de préhension est assurée de sorte que le mouvement en rotation du tube ou du moyen de préhension selon l'axe longitudinal du tube t soit bloqué. Ainsi, lors du montage sur les passerelles d'accessoires lourds (caméras, spots de lumière) qui, sous l'effet de la gravité qui est une force d'entraînement du tube, ont tendance à mettre le tube en mouvement de rotation, cette rotation est contrecarrée puisque la force d'entraînement est, de préférence entièrement, compensée par la pression agissant sur chacune des surfaces de contact formées entre la surface externe E du tube t et la surface interne de la mâchoire. In the case of a combination of a polygonal cross section tube with the gripping means according to the invention, once the tube is tightened in the jaw, a catch between the tube and the gripping means is ensured so that the rotational movement of the tube or the gripping means along the longitudinal axis of the tube t is blocked. Thus, when mounting on the gateways of heavy accessories (cameras, light spots) which, under the effect of gravity which is a driving force of the tube, tend to put the tube in rotation movement, this rotation is thwarted since the driving force is preferably entirely compensated by the pressure acting on each of the contact surfaces formed between the outer surface E of the tube t and the inner surface of the jaw.
La figure 6 est une vue éclatée (figure 6a) d'un mode de réalisation particulier du dispositif selon l'invention (figure 6b). Dans ce mode particulier de réalisation, les premières surfaces externes 8a, 8b de chaque première partie de mâchoire 4a, 4b sont solidaires entre elles de façon à ce que les tubes une fois montés dans le moyen de préhension forment un angle de 90°.  Figure 6 is an exploded view (Figure 6a) of a particular embodiment of the device according to the invention (Figure 6b). In this particular embodiment, the first outer surfaces 8a, 8b of each first jaw portion 4a, 4b are integral with each other so that the tubes once mounted in the gripping means form an angle of 90 °.
En outre, le tube à section transversale polygonale faisant partie de la combinaison selon l'invention peut aussi être monté sur un moyen de préhension dont les parties de chaque mâchoire présente une section transversale classique circulaire.  In addition, the polygonal cross section tube forming part of the combination according to the invention can also be mounted on a gripping means whose parts of each jaw has a conventional circular cross section.
Il est à noter toutefois que si la combinaison d'un tube à section transversale polygonale et d'un moyen de préhension classique et/ou la combinaison d'un tube classique et d'un moyen de préhension dont les parties de chaque mâchoire présente une section transversale polygonale, n'offre pas la même garantie de montage dans une orientation et un alignement précis des tubes et mâchoires entre eux et/ou d'accessoires sur les tubes lors du montage dudit échafaudage, dès lors que la prévention de la rotation selon l'axe longitudinal du tube dans le moyen de préhension ou du moyen de préhension autour du tube n'est pas garantie, il permet néanmoins la fixation stable des tubes et mâchoires entre eux et/ou d'accessoires sur les tubes.  It should be noted, however, that if the combination of a polygonal cross section tube and a conventional gripping means and / or the combination of a conventional tube and a gripping means whose parts of each jaw has polygonal cross-section, does not offer the same guarantee of assembly in a precise orientation and alignment of the tubes and jaws between them and / or accessories on the tubes during assembly of said scaffolding, since the prevention of rotation according to the longitudinal axis of the tube in the gripping means or the gripping means around the tube is not guaranteed, it nevertheless allows the stable attachment of the tubes and jaws together and / or accessories on the tubes.
Si la description porte sur un mode de réalisation préférentiel du dispositif selon l'invention dans lequel la section transversale de la surface interne des mâchoires et la section transversale du tube sont hexadécagonaie, il est entendu que la présente invention n'est pas limitée à cette section transversale octogonale mais couvre aussi d'autres formes de sections transversales polygonales telles que hexagonales, heptagonales, et octogonales.  If the description relates to a preferred embodiment of the device according to the invention in which the cross section of the inner surface of the jaws and the cross section of the tube are hexadecagonaie, it is understood that the present invention is not limited to this octagonal cross section but also covers other forms of polygonal cross-sections such as hexagonal, heptagonal, and octagonal.

Claims

REVENDICATIONS
1. Combinaison d'au moins un tube (t), ledit tube présentant une section transversale polygonale ou circulaire, et d'au moins un moyen de préhension (1 ) dudit au moins un tube, ledit moyen de préhension comprenant une première mâchoire (2), chaque partie (4a, 5a, 4b,5b) de ladite première mâchoire présentant une surface interne (7a, 7b) et une première surface externe (8b), ladite surface interne étant en contact avec une deuxième surface externe (E) dudit au moins un tube lorsque ledit tube est monté dans ladite mâchoire, ledit moyen de préhension comprenant au moins un moyen de serrage (10,1 1 ,12) agencé pour serrer ladite surface interne desdites parties (4b, 5b) de mâchoire (2) sur ladite surface externe (E) dudit tube (t), ladite combinaison étant caractérisée en ce que ladite surface interne (7a,7b) de chaque partie (4a, 5a, 4b, 5b) de mâchoire (2) présente un profil défini par une section transversale composée d'un premier ensemble de segments droits (15) et d'un deuxième ensemble de segments curvilignes (16), lesdits premier et deuxième ensembles étant répartis sur un premier pourtour de surface interne (7a,7b) de chaque partie (4b, 5b) de mâchoire (2), au moins un premier sous-ensemble (sel ) dudit premier ensemble de segments droits (15) étant agencé pour être en contact avec et pour épouser au moins une partie de deuxième pourtour de ladite deuxième surface externe (S) du tube lorsque ledit tube (t) est de section transversale polygonale, au moins un deuxième sous-ensemble (se2) dudit deuxième ensemble de segments curvilignes (16) étant agencé pour être en contact avec et pour épouser au moins une partie de pourtour de ladite deuxième surface externe (E) du tube lorsque ledit tube (t) est de section transversale circulaire, ladite section transversale dudit tube (t) et ladite section transversale du profil de ladite surface interne (7a, 7b) de chaque partie (4a, 5a, 4b, 5b) de ladite première mâchoire (2) étant compatibles entre elles pour permettre ledit contact et ledit serrage entre elles. 1. Combination of at least one tube (t), said tube having a polygonal or circular cross-section, and at least one gripping means (1) of said at least one tube, said gripping means comprising a first jaw ( 2), each portion (4a, 5a, 4b, 5b) of said first jaw having an inner surface (7a, 7b) and a first outer surface (8b), said inner surface being in contact with a second outer surface (E) said at least one tube when said tube is mounted in said jaw, said gripping means comprising at least one clamping means (10,1 1, 12) arranged to clamp said inner surface of said jaw portions (4b, 5b) (2 ) on said outer surface (E) of said tube (t), said combination being characterized in that said inner surface (7a, 7b) of each jaw portion (4a, 5a, 4b, 5b) has a defined profile by a cross-section composed of a first set of straight segments (15 ) and a second set of curvilinear segments (16), said first and second sets being distributed over a first inner surface circumference (7a, 7b) of each jaw portion (4b, 5b), at least one first subset (salt) of said first set of straight segments (15) being arranged to contact and to fit at least a second portion around said second outer surface (S) of the tube when said tube (t) is of polygonal cross section, at least a second subassembly (se2) of said second set of curvilinear segments (16) being arranged to contact and to fit at least a peripheral portion of said second outer surface (E) of the tube when said tube (t) is of circular cross-section, said cross-section of said tube (t) and said cross section of the profile of said inner surface (7a, 7b) of each portion (4a, 5a, 4b, 5b) of said first jaw (2) etan t compatible with each other to allow said contact and said clamping between them.
2. Combinaison selon ia revendication 1 , caractérisée en ce qu'elle comprend une deuxième mâchoire (3) ayant une deuxième surface externe (8a) d'une des parties de mâchoire qui est reliée à un point de contact de ladite première surface externe (8b) d'une des parties de ladite première mâchoire, par un axe de liaison (9) passant par ledit point de contact et permettant la rotation de ladite première et de ladite deuxième mâchoire selon cet axe de liaison.  2. Combination according to claim 1, characterized in that it comprises a second jaw (3) having a second external surface (8a) of one of the jaw parts which is connected to a point of contact of said first external surface ( 8b) of a part of said first jaw, by a connecting pin (9) passing through said point of contact and allowing the rotation of said first and said second jaw along said connecting axis.
3. Combinaison selon l'une quelconque des revendications précédentes, caractérisée en ce que ladite section transversale polygonale de ladite surface externe dudit tube est choisie parmi les formes pentagonales, hexagonales, heptagonales, et octogonales.  3. Combination according to any one of the preceding claims, characterized in that said polygonal cross section of said outer surface of said tube is selected from pentagonal, hexagonal, heptagonal, and octagonal shapes.
4. Combinaison selon l'une quelconque des revendications précédentes, caractérisée en ce que chacune des parties de mâchoire comprend une première (E1 ) et une deuxième extrémité (E2), lesdites premières extrémités de chacune des parties de mâchoire (4b, 5b) étant reliées entre elles par un moyen de connexion (6), ledit moyen de connexion comprenant au moins un premier orifice (6a) traversant lesdites premières extrémités de chacune des parties de mâchoire et au moins un moyen de jonction (6b), agencé pour traverser ledit au moins un premier orifice présent sur lesdites premières extrémités des parties de mâchoire, de telle sorte que, lorsque ladite mâchoire est fermée, les surfaces internes se font face.  Combination according to any one of the preceding claims, characterized in that each of the jaw parts comprises a first (E1) and a second end (E2), said first ends of each of the jaw parts (4b, 5b) being interconnected by a connecting means (6), said connecting means comprising at least a first orifice (6a) passing through said first ends of each of the jaw portions and at least one junction means (6b) arranged to traverse said at least one first aperture on said first ends of the jaw portions, such that when said jaw is closed, the inner surfaces face each other.
5. Combinaison selon Tune quelconque des revendications précédentes, caractérisée en ce que ledit moyen de serrage comprend une encoche (1 1 ) située au niveau de ladite deuxième extrémité d'une première partie de mâchoire (E2), chaque paroi latérale de ladite encoche étant traversée par un deuxième orifice, lesdits deuxièmes orifices de chaque parois latérale se faisant face, et en ce que ledit moyen de serrage comprend en outre une tige filetée (10) prolongée d'une tête en forme de T, ladite tête en forme de T étant reliée à ladite deuxième extrémité de ladite première partie de mâchoire extrémité en étant engagée dans ladite première encoche, chaque extrémité de ladite tête en forme de T traversant ledit deuxième orifice situé sur chaque paroi latérale de ladite encoche, permettant la rotation de ladite tige filetée selon un axe passant par lesdits deuxièmes orifices (ar2), ladite tige étant en outre destinée, lorsque ladite mâchoire est fermée, à être logée provisoirement dans une deuxième encoche située au niveau de ladite deuxième extrémité d'une deuxième partie de mâchoire, ledit moyen de serrage comprenant par ailleurs un écrou au pas de vis complémentaire à celui de ladite tige filetée, ledit écrou étant destiné à être visé sur ladite tige lorsque cette dernière est logée dans ladite deuxième encoche (11 ) de telle sorte que ladite deuxième extrémité (E1 ) de ladite deuxième partie de mâchoire soit connectée définitivement à ladite deuxième extrémité de ladite première partie de mâchoire (E2). Combination according to any one of the preceding claims, characterized in that said clamping means comprises a notch (1 1) located at said second end of a first jaw portion (E2), each side wall of said notch being traversed by a second orifice, said second orifices of each side wall facing each other, and in that said clamping means further comprises a threaded rod (10) extended a T-shaped head, said T-shaped head being connected to said second end of said first end jaw portion engaged in said first notch, each end of said T-shaped head passing through said second orifice located on each side wall of said notch, allowing the rotation of said threaded rod along an axis passing through said second orifices (a r 2), said rod being further intended, when said jaw is closed, to be housed provisionally in a second notch located at said second end of a second jaw portion, said clamping means further comprising a screw thread nut complementary to that of said threaded rod, said nut being intended to be aimed at said rod when the latter is accommodated in said second notch (11) so that said second end (E1) of said second notch (11) jaw portion is permanently connected to said second end of said first jaw portion (E2).
6. Combinaison selon l'une quelconque des revendications précédentes, caractérisée en ce que, lorsque ladite mâchoire est fermée, le profil desdites surfaces internes (7a, 7b) de chaque partie (4b, 5b) de mâchoire (2) est défini par une section transversale dont la pluralité de segment droits définit une forme sensiblement polygonale choisie parmi les formes pentagonales, hexagonales, heptagonales, et octogonales.  6. Combination according to any one of the preceding claims, characterized in that, when said jaw is closed, the profile of said inner surfaces (7a, 7b) of each part (4b, 5b) of jaw (2) is defined by a cross section whose plurality of straight segments defines a substantially polygonal shape selected from pentagonal, hexagonal, heptagonal, and octagonal shapes.
7. Combinaison selon l'une quelconque des revendications précédentes, caractérisée en ce que ledit au moins un tube est un tube téléscopique.  7. Combination according to any one of the preceding claims, characterized in that said at least one tube is a telescopic tube.
8. Tube faisant partie de ladite combinaison selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il présente une section transversale polygonale ou circulaire.  8. Tube forming part of said combination according to any one of the preceding claims, characterized in that it has a polygonal or circular cross section.
9. Moyen de préhension faisant partie de ladite combinaison selon Tune quelconque des revendications 1 à 8, caractérisé en ce que ladite surface interne (7a, 7b) de chaque partie (4b, 5b) de mâchoire (2) présente un profil défini par une section transversale composée d'une pluralité de segments droits (16) et d'une pluralité de segments curvilignes ( 7), chacun desdits segments droits (16) étant agencé pour être en contact avec et pour épouser au moins une partie de pourtour de ladite surface externe (E) dudit tube (t) de section transversale polygonale, chacun des segments curvilignes ( 7) étant agencé pour être en contact avec et pour épouser au moins une partie de pourtour de ladite surface externe (E) dudit tube (t) de section transversale circulaire, ladite section transversale dudit tube (t) et ladite section transversale du profil de ladite surface interne (7a, 7b) de chaque partie (4b, 5b) de ladite première mâchoire (2) étant compatibles entre elles pour permettre ledit contact et ledit serrage entre elles. 9. Gripping means forming part of said combination according to any one of claims 1 to 8, characterized in that said inner surface (7a, 7b) of each jaw portion (4b, 5b) has a profile defined by a cross section composed of a plurality of straight segments (16) and a plurality of curvilinear segments (7). ), each of said straight segments (16) being arranged to be in contact with and to fit at least a circumferential portion of said outer surface (E) of said tube (t) of polygonal cross-section, each of the curvilinear segments (7) being arranged to be in contact with and to fit at least a peripheral portion of said outer surface (E) of said tube (t) of circular cross-section, said cross-section of said tube (t) and said cross-section of the profile of said internal surface (7a, 7b) of each portion (4b, 5b) of said first jaw (2) being mutually compatible to allow said contact and said clamping therebetween.
PCT/EP2014/069673 2013-09-18 2014-09-16 Combination of at least one tube and at least one means for gripping the tube WO2015040012A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE2013/0611 2013-09-18
BE2013/0611A BE1022123B1 (en) 2013-09-18 2013-09-18 COMBINATION OF AT LEAST ONE TUBE AND AT LEAST ONE MEANS FOR PREVENTING THE TUBE

Publications (1)

Publication Number Publication Date
WO2015040012A1 true WO2015040012A1 (en) 2015-03-26

Family

ID=49447301

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/069673 WO2015040012A1 (en) 2013-09-18 2014-09-16 Combination of at least one tube and at least one means for gripping the tube

Country Status (2)

Country Link
BE (1) BE1022123B1 (en)
WO (1) WO2015040012A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104832510A (en) * 2015-05-18 2015-08-12 薛征宇 Pipe connecting device
CN108679057A (en) * 2018-05-18 2018-10-19 孙云云 A kind of reinforcing bar Quick fastening component
GB2578862A (en) * 2018-03-08 2020-06-03 George Arthur Croll James Composite structural coupler

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108930400A (en) * 2018-07-26 2018-12-04 中船第九设计研究院工程有限公司 A kind of reinforcing heightening type hanging basket connection system reinforcing bar bindiny mechanism

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB636594A (en) 1945-07-27 1950-05-03 Charles Haas Improvements in or relating to clamping devices for the construction of scaffolding and other temporary metal structures
US2945713A (en) * 1956-09-24 1960-07-19 Hyval Products Co Swivel type clamp
WO1983003868A1 (en) * 1982-04-22 1983-11-10 Bo Allan Hjelm Scaffolding system
CA1175870A (en) * 1982-02-22 1984-10-09 Aluma Systems Incorporated Clamp for shoring and scaffolding frames
DE29918015U1 (en) * 1999-10-13 2000-02-03 Steins Ummantelungsmaschinente Fastener
DE20221676U1 (en) * 2001-02-22 2006-11-16 Wilhelm Layher Verwaltungs-Gmbh Connecting structure for components of system frame has sheet steel corner plates between cross brackets and frame struts and with corner recess and further recess to take coupling units to provide different connecting possibilities

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2165221A (en) * 1936-07-03 1939-07-11 Burton John Scaffolding clamp
GB1251392A (en) * 1968-05-09 1971-10-27

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB636594A (en) 1945-07-27 1950-05-03 Charles Haas Improvements in or relating to clamping devices for the construction of scaffolding and other temporary metal structures
US2945713A (en) * 1956-09-24 1960-07-19 Hyval Products Co Swivel type clamp
CA1175870A (en) * 1982-02-22 1984-10-09 Aluma Systems Incorporated Clamp for shoring and scaffolding frames
WO1983003868A1 (en) * 1982-04-22 1983-11-10 Bo Allan Hjelm Scaffolding system
DE29918015U1 (en) * 1999-10-13 2000-02-03 Steins Ummantelungsmaschinente Fastener
DE20221676U1 (en) * 2001-02-22 2006-11-16 Wilhelm Layher Verwaltungs-Gmbh Connecting structure for components of system frame has sheet steel corner plates between cross brackets and frame struts and with corner recess and further recess to take coupling units to provide different connecting possibilities

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104832510A (en) * 2015-05-18 2015-08-12 薛征宇 Pipe connecting device
CN104832510B (en) * 2015-05-18 2017-01-18 薛征宇 Pipe connecting device
GB2578862A (en) * 2018-03-08 2020-06-03 George Arthur Croll James Composite structural coupler
GB2578862B (en) * 2018-03-08 2023-04-12 George Arthur Croll James Composite structural coupler
CN108679057A (en) * 2018-05-18 2018-10-19 孙云云 A kind of reinforcing bar Quick fastening component

Also Published As

Publication number Publication date
BE1022123B1 (en) 2016-02-17

Similar Documents

Publication Publication Date Title
WO2015040012A1 (en) Combination of at least one tube and at least one means for gripping the tube
EP3445949B1 (en) Device for cooling a turbine casing with air jets
BE1026337A1 (en) ROTATION AND ANGLE ADJUSTMENT ELEMENT
EP1719693A1 (en) Bicycle frame
FR3083291A1 (en) CONNECTION SYSTEM FOR ELEMENTS OF ELONGATE SHAPE
FR3038689A1 (en) DEVICE COMPRISING A FLEXIBLE CRADLE
FR2835928A1 (en) STRUCTURE FOR ASSEMBLING A PAIR OF BINOCULARS WITH PHOTOGRAPHY FUNCTION
CH673177A5 (en)
LU102315B1 (en) Convertible Telescope
FR3070749B1 (en) DIRECTIONAL LIGHT PROJECTOR
EP3839173A1 (en) Device for attaching a rail of a railing to a vertical post and fence provided with such a device
FR2748128A1 (en) Fixing for rigid connection between spectacle lens and frame
FR2809191A1 (en) ASPECT REPORT CONVERTER FOR OBJECTIVE
EP3055735A1 (en) Optical device for capturing images in a 360° horizontal field of view
FR2569862A1 (en) ORIENTATION DEVICE FOR AN OPTICAL COMPONENT
FR3008119A1 (en) DEVICE FOR CONNECTING JACKETS TO A CARRIER STRUCTURE OF METAL, SUCH AS A TURNING TOWER, AND ASSOCIATED CARRIER METAL STRUCTURE
FR2963173A1 (en) Device for suspension of e.g. fiber to home optical cable on post, has open suspension ring including two branches including curved extreme parts forming housing in which sleeve is received and maintained in detachable manner
FR3078054A1 (en) FLOATING PLATFORM WITH A MODULAR STRUCTURE
FR3076312A1 (en) POST FOR BALUSTRADE OR THE LIKE AND BALUSTRADE SYSTEM COMPRISING SUCH A POST
FR2846434A1 (en) SCREEN FOR EYEGLASSES AND PARTS FOR THE MANUFACTURE OF SUCH A SCREEN
BE1022266B1 (en) IMPROVEMENTS IN OR RELATING TO MODULAR LUMINAIRE ASSEMBLIES
EP0413649A1 (en) Assembly device for longitudinal elements
FR2883067A3 (en) Light stem for superstore and public places, has projector rings disposed on strut and lateral surface of stem and including prismatic configuration whose central part includes circular opening
FR2781708A1 (en) FOLDABLE BICYCLE HOLDER
EP3076065A1 (en) 3d panoramic head

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14766476

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14766476

Country of ref document: EP

Kind code of ref document: A1