Classifications

• • 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
  • F16B7/0486—Clamping or clipping connections for rods or tubes being in angled relationship for rods or for tubes without using the innerside thereof forming an abutting connection of at least one tube

Definitions

• the invention relates to the field of fixed mechanical connections for rigid profiles such as those adapted and intended for the realization of adapted modular carrier structures and for the realization of functional assemblies with implementation of "Lean Manufacturing”.
• the invention firstly relates to a fixed mechanical connection piece, as a general means for any part or assembly proper to provide a fixed mechanical connection of profiles, and any fixed mechanical assembly resulting.
• part of the term “stationary mechanical connection part” shall be understood to mean a unitary element which is adapted and intended, either as such or by its association with one or more other elements, to perform the function and provide the expected result, namely a fixed mechanical connection.
• a stationary mechanical connection assembly in the expression “stationary mechanical connection assembly” shall be understood to mean a complete and integral whole, adapted and intended, as such, to perform the function and provide the expected result, namely a fixed mechanical connection.
• a stationary mechanical connection assembly may consist of only one fixed mechanical connection piece or may comprise several fixed mechanical connection pieces.
• assembly should be understood as designating the whole which comprises the considered sections and the part or parts and / or the fixed mechanical connection assembly or sets providing a fixed mechanical connection of the profiles between them by their extrados.
• a particular fixed mechanical connection piece (conventionally referred to as a "subordinate fixed mechanical connection part") intended to be associated with another similar connection part, the two parts being part of a fixed mechanical connection assembly intended for an assembly in which, for the fixed mechanical connection, there is permanent, firm and intimate application, and implementation of a clamping means, of the connection assembly on the extrados of the profiles.
• Another object of the invention is, in a second embodiment, another particular fixed mechanical connection piece (conventionally referred to as an "autonomous fixed mechanical connection piece") intended for an assembly in which, for the fixed mechanical connection, there is application permanent, firm and intimate, by the weight of one element on another element below.
• the invention also relates to a modular support structure, comprising a plurality of profiles and one or more fixed mechanical connection parts and / or one or more fixed mechanical connection assemblies, arranged to ensure a fixed mechanical connection of the profiles to each other. by their extrados.
• the invention also relates to a functional assembly comprising such a modular carrier structure and one or more specific functional devices associated with the carrier structure.
• the invention finally relates to the use of a composite wall to form such fixed mechanical connection parts.
• the expression "fixed mechanical connection” applied to two sections must be understood as meaning that the two sections are mechanically connected and joined to each other by one or more fixed mechanical connection parts (in particular subordinate or autonomous) and / or one or several sets of fixed mechanical connection, so as to be rigidly secured, the assembly thus produced being dimensionally stable.
• the two profiles are arranged relative to each other either transversely - at right angles or with an inclination - or in parallel fashion - coaxially in extension of one another or transversely spaced apart. one of the other - is still side by side with a certain inclination.
• profile should be understood, unless otherwise stated, as referring both to an open profile - for example having a U-shaped cross-section or pseudo U or comprising a U - that a laterally closed profile. peripherally, as a tube, or another embodiment allowing a peripheral application of a fixed mechanical connection piece.
• a modular support structure as defined is rigid and adapted and intended for the realization of functional assemblies with implementation of "Lean Manufacturing”.
• Such a modular carrier structure is generally as a perforated framework, solid, formed from profiles and parts and / or sets of fixed mechanical connection connecting the profiles together and ensuring their fixed connection between them by their extrados. Its shape is adapted and intended for the function of the functional unit to which it belongs, and for this purpose it is adapted and intended to be associated with one or more specific complementary functional devices, such as receptacles, rails, rollers, stops, slides, wheels, means for driving or moving, etc., this list not being limiting.
• Such functional assemblies are varied in their function, the results they aim to provide, the realization, size, consumables or utilities for which they are intended, etc., and ultimately the process they are aimed at. to implement.
• Such functional units can be adapted and intended to be fixed or moved. They can also be adapted and intended for static or dynamic operation.
• FIG. 1 illustrates an arrangement of such known functional assemblies where personnel are working near a work table resting on a base A, near which there are different shelves B having receptacles and a carriage C towing wagons. .
• Such functional assemblies are, for example, shelving (the term “shelving” to be understood in its most general sense) for the holding, moving, feeding, removal, presentation, etc., of the bases (by example for work plan), services, conveyors, guiding, "Picking", unloading devices, trolleys, wagons, workstations, etc., this list not being limiting.
• the functional assemblies comprising the modular carrier structures in question here are intended for industrial production or logistics or even distribution processes, this list not being limiting.
• they can be implemented in the automotive, railway, space, electronics, pharmaceutical and medical industries, in the manufacture of consumer products, luxury goods, packaging, in the supermarket sector. etc.
• Such functional units are intended to be placed in workshops, manufacturing units, logistics or distribution centers, etc., this list not being limiting, and they are used by the personnel who are placed or moved nearby and most often must access it, and possibly even by the public or customers.
• it is important today that such functional units have an appearance that is, if not aesthetic, at least not unsightly. It is also important that they be, as far as possible, free of dirt traps and projections source of attachment.
• such functional assemblies must be able to be adapted according to the needs of flexibility of the processes implemented, which supposes their easy and safe assembly, their dismountability and the reuse of their constitutive elements.
• the document FR 2 779 782 describes a connecting element of the type according to the first embodiment previously identified, intended to be fixed to another similar connecting element in order to form a connecting piece itself intended to be associated, thanks to a clamping means, tubes having a thermoplastic outer coating, so as to constitute a modular tubular structure.
• the connecting elements comprise extended clamping grooves for cooperating with the thermoplastic coating of the tubes. But it was found that these grooves did not allow effective fixing of the tubes relative to the connecting pieces.
• the document EP 2 123 919 also relates to connecting elements of the same type as those previously described and relates to an improvement relative to the clamping means of the two connecting elements face to face.
• the connection devices according to the aforementioned documents FR 2 779 782 and EP 1 795 766 are known to have been manufactured and sold by TRILOGIQ.
• the tubes have been proposed with an outer diameter of 28.6 mm and two thicknesses, namely 1 mm for light applications and 2 mm for reinforced applications.
• the tubes are metallic, galvanized on the inside and outside, and then they are coated with their outer thermoplastic coating of 0.8 mm thick.
• the connecting elements are in the form of wall-shaped metal parts, shaped, and they have a zinc coating applied in finish, which ensures a pleasant aesthetic, a guarantee no corrosion even in severe environment, and high impact resistance.
• Such rigid mechanical connection parts are part of an envelope having, in a typical embodiment, a length of the order of a few tens of centimeters, a width of the order of three to four centimeters and a height of 1 cm. The order of a centimeter and a half and they have a mass of the order of 65 grams.
• the document EP 2 123 578 describes an attachment piece, which is a fixed mechanical connection piece of the type according to the second embodiment previously identified, intended to be received and supported by a profile and to support a roller rail, the assembly functional being here a support system, handling, logistics, distribution or storage comprising a system of roller rails, the fixed mechanical connection being ensured by a firm application of the profile on the connection piece below, by its weight, and the connection piece on the profile below, by its weight.
• the attachment piece is rigid and comprises a receiving portion of a free end portion of a first open support channel-shaped section forming part of the roller rail, having a U-shaped cradle shape and a hooking portion the second section such as a tube, extending the U-shaped cradle of the receiving portion, shaped according to the shape of the second section so as to be applied on it.
• the attachment portion is in the form of a medial fastening tab or in the form of two lateral attachment tabs separated by a median free space, which allows to place the hanging tab median of a hooking part associated with a roller rail in the median free space of another attachment piece associated with another roller rail, the two roller rails can then be placed in the extension the one of the other.
• an attachment piece according to the document EP 2 123 578 previously cited is known to have been manufactured and sold by TRILOGIQ. Such a piece is metallic and coated with a zinc-based anti-corrosion treatment, ensuring durability and aesthetics.
• the document WO 2006/078087 provides nothing more than the documents FR 2 779 782 and EP 1 795 766 mentioned above.
• connection assembly comprising two pieces of fixed mechanical connection subordinate face to face and a clamping means between them, is such that there is a significant day visible between the two rooms towards the first section. This day is embarrassing, being unsightly to show the profile, constituting a dirt trap, forming a protruding source of attachment.
• the state of the prior art is also illustrated by the document DE 20 2007 001 480.
• the subordinate fixed mechanical connection parts are of complex shape with external stiffening projections and a clamping means comprising not less than four bolts per pair of connecting pieces.
• This embodiment has the drawbacks of high weight, dirt traps, protrusions sources of attachment, and difficulty of assembly.
• the prior art is also illustrated by the document US 2004 0101354.
• the subordinate fixed mechanical connection parts are also of complex shape with a projecting bolt head, unsightly hollow parts, a important day visible between the two rooms.
• the problem underlying the invention is therefore, in the technical field of the invention as previously defined, to provide a fixed mechanical connection piece (subordinate or autonomous), or a mechanical connection assembly fixed or an assembly, as previously defined, which, on the one hand, keep the advantages of the elements described in the documents FR 2 779 782, EP 1 795 766, EP 2 123 919, and EP 2 123 578 and have qualities techniques at least equal and even superior, in terms of solidity, versatility (different use, dismountability, reuse), durability, ease of assembly, lightness for transport, and which, on the other hand, do not have the disadvantages of the elements described in the documents JP 2000 283123, DE 20 2007 001 480, US 2004 0101354 and US Pat. No.
• 6,565,279 such as for example the need for protrusions to bite a coating which are provided the profiles and therefore the degradation of pr ofiles, the existence of a visible day between two subordinate fixed mechanical connection parts, an unsightly appearance, dirt trap, hooking source projections, complex shapes, weight, a complex clamping means, a difficulty mounting, the need to drill profiles, etc.
• the subject of the invention is a fixed mechanical connection part, intended to mechanically connect in a fixed manner, if necessary in a removable manner, a first rigid section and a second rigid section, which:
• first cradle including a first wall whose intrados is adapted to receive, cooperate and come into contact with the extrados of a longitudinal section of the first section,
• a second cradle including a second wall whose intrados is adapted to receive, cooperate and come into contact with the extrados of a longitudinal section of the second section,
• the cradle and the associated section are joined in a fixed manner, and that the first section and the second section are assembled together with each other in a fixed manner.
• This piece is such that:
• the first wall, the second wall, of the first cradle, of the second cradle is composite and comprises, superimposed as a whole: o a part in the form of an outer layer, towards the extrados of the first cradle, the second cradle, having a high rigidity and a high resistance comparable to those of a rigid and resistant steel, limited on one side by the extrados of the mechanical connection piece fixed and limited on the other side by a rigid connection interface with a portion in the form of an inner layer, and
• said portion in the form of an inner layer, bounded on one side by a rigid securing interface with the rigid connection interface of the outer layer and limited on the other side by the intrados of the first cradle, the second cradle, thermoplastic polyurethane or the like, having good strength and elastic flexibility,
• the intrados of the first cradle, of the second cradle is applied in an intimate manner on the extrados of the first profile / second profile, in the manner of a sucker, thus participating in the fixed mechanical connection of the fixed mechanical connection piece and the two sections.
• the first wall of the first cradle and the second wall of the second cradle comprise, one and the other, an outer layer-shaped part, made of the same material, and an inner layer-shaped part, made of the same thermoplastic polyurethane or the like.
• the entire intrados intended to come into contact with the extrados of the first profile, the second profile is, as the inner layer, thermoplastic polyurethane or the like.
• the wall of the cradle is made by injection of a plastic material forming the outer layer and thermoplastic polyurethane or the like forming the inner layer, in particular by bi-injection.
• the plastic material forming the outer layer is a partially aromatic polyamide thermoplastic, in particular reinforced with glass fibers, carbon fibers or the like.
• the wall of the cradle is free of metal layer.
• the underside of the cradle is uniform and smooth, in particular without projections for biting into the profile, and has a high sliding friction.
• the rigid connection interface of the outer layer of the first cradle and / or the second cradle is uniform, without substantial inequalities, and the rigid connection interface of the inner layer of the first cradle and / or the second cradle is uniform, without substantial inequalities.
• the rigid connection interface of the outer layer of the first cradle and / or the second cradle comprises reliefs, in particular recesses and transverse alternating projections, and the rigid connection interface of the inner layer.
• the first cradle and / or the second cradle comprises reliefs, in particular recesses and transverse alternating projections.
• the inner layer of the first cradle, the second cradle is extended by a lateral flange extension of the inner layer, which is secured in contact with a longitudinal edge of the outer layer of the first cradle, the second cradle, in particular wherein a longitudinal edge of the outer layer of the first cradle, the second cradle, is substantially completely covered by such a lateral flange extension, and wherein such a side edge extension forms the edge of the first cradle, second cradle.
• such a lateral flange extension of the first cradle, of the second cradle is extended by an integral development in contact with the outer free face of the outer layer of the first cradle, the second cradle, in particular in contact with a recessed portion formed in the outer free face of the outer layer of the first cradle, the second cradle.
• the extrados of the fixed mechanical connection piece, at the location of the first cradle, of the second cradle, is uniform and smooth, in particular devoid of substantial projections and inequalities.
• the first cradle has on the inside a protrusion or transverse partition towards the fixed connection, between the first cradle and the second cradle, the first section extending entirely on the same side of the mechanical connection piece. fixed.
• the second cradle extends from one edge to the other edge of the fixed mechanical connection piece by passing through it from one side to the other, the fixed mechanical connection piece being able to be connected to a second single section extending entirely on the same side or both sides of the fixed mechanical connection piece or to be connected to two second profiles extending one from the other, each extending entirely from a same side of the mechanical connecting piece fixed opposite from each other.
• the second cradle extends from one edge to the other edge of the fixed mechanical connection piece by passing through it from one side to the other, and comprises inside a projection or transverse partition, the piece fixed mechanical connection being able to be connected to a second single section extending entirely on the same side of the fixed mechanical connection piece or to be connected to two second profiles in extension of one another, s extending each whole on the same side of the fixed mechanical connection piece.
• the second cradle extends over a portion only between the two edges of the fixed mechanical connection piece without crossing it from one side to the other, the fixed mechanical connection piece being able to be connected to a second section single whole extending on the same side of the fixed mechanical connection piece.
• the first cradle axis of the first cradle, and the second cradle axis of the second cradle are arranged relative to each other transversely, at right angles or with an inclination, or in a parallel manner , coaxial in extension of one another or spaced transversely from one another.
• the invention also relates, in a first embodiment, to a so-called "subordinate" fixed mechanical connection piece such as that described above and which, in addition, is intended to be rigidly associated with a second similar subordinate fixed mechanical connection part.
• a so-called "subordinate" fixed mechanical connection piece such as that described above and which, in addition, is intended to be rigidly associated with a second similar subordinate fixed mechanical connection part.
• the first cradle and the second cradle are turned on the same side of the subordinate mechanical connection piece to an axis orthogonal to the cradle axes, whose songs longitudinals of the first cradle and the second cradle are substantially coplanar or tangent, and which comprises in the fixed connection between the cradles, a stepped through hole, adapted and intended to allow the assembly of a part of a clamping means - such as a bolt of the subordinate fixed mechanical connection part and the second subordinate fixed mechanical connection part, said through hole extends t in a direction substantially orthogon
• the subordinate fixed mechanical connection piece comprises a fixed connection between the first cradle and the second cradle which extends so as to be adjacent to the first cradle in its axial extension and to the proximal longitudinal edge of the second cradle.
• cradle in which is formed, on the one hand, the through-hole shouldered and, secondly, symmetrically with respect to the through hole, a positioning projection and a positioning hole, extending in the same direction as the axis of the through-hole, so that when the subordinate fixed mechanical connection piece and the second subordinate fixed mechanical connection piece are associated, the positioning projection of one cooperates with the positioning hole of the other and Conversely.
• the stepped through hole is adapted to receive a nut of the clamping means, and comprises, in the hole, a lining of a material having a good resilient and elastic resilient, of thermoplastic polyurethane or the like, wherein the nut can be force-fitted and held during assembly of the clamping means.
• the first cradle, the second cradle, and the fixed connection between the cradles comprise a lateral flange extension of the inner layer, so that when the subordinate fixed mechanical connection piece is rigidly associated with a second similar subordinate fixed mechanical connection piece, the two lateral flange extensions of the two subordinate fixed mechanical connection pieces are in contact with each other or in close proximity to one another, no day, or no substantial visible day, existing between the two subordinate fixed mechanical connection parts.
• the extrados of the subordinate fixed mechanical connection part is essentially uniform and smooth, by means, where appropriate, of the presence of a functional zone located in a hollow in relation to a ring locking.
• this hollow localized functional zone forms a locking groove extending from the free transverse edge of the first cradle, being adapted and intended to cooperate with a stud of a locking ring.
• the width of the first cradle is of the same order of magnitude as the length of the second cradle.
• the intrados of the first cradle and / or the intrados of the second cradle has, in transverse cross section, a substantially semicircular shape, the first wall of the first cradle and / or the second wall of the second cradle having in cross section, a generally semi-circular general shape.
• the invention also relates to a fixed mechanical connection assembly, intended to mechanically connect fixed way, if necessary removable, a first profile and a second profile, which comprises a first subordinate fixed mechanical connection part and a second subordinate fixed mechanical connection part similar, as have been described, and a clamping means - such as a bolt - of the first subordinate fixed mechanical connection part and the second subordinate fixed mechanical connection part, on the first section and on the second section.
• the fixed mechanical connection assembly in the case where the first subordinate fixed mechanical connection part and the second subordinate fixed mechanical connection part comprise a locking groove adapted and intended to cooperate with a stud of a ring the fixed mechanical connection assembly further comprises a ring-shaped locking ring with at least one radially inward pin, said locking ring being adapted and intended to be arranged around the first mechanical connection piece and second subordinate fixed mechanical connection part, on the side of their first cradles, and around the first section, so as to cooperate with friction with the extrados of the two subordinate fixed mechanical connection parts, a nipple being suitable and intended to cooperate with a locking groove.
• the invention also relates to an assembly of profiles comprising a first section and a second section mechanically connected in a fixed manner, the where appropriate removable, by a fixed mechanical connection assembly as described.
• the first profile and / or the second profile is a closed profile such as a hollow tube, in particular a smooth-extrados reinforced plastic tube, in particular without an outer thermoplastic coating. can be depressed locally.
• the extrados of the first profile and / or the second profile has, in transverse cross section, a circular shape
• the free face forming the intrados of the first cradle and / or the free face forming the intrados of the second cradle has, in transverse cross section, a substantially semi-circular shape
• the first wall of the first cradle and / or the second wall of the second cradle having in transverse cross section, a substantially semi-circular general shape.
• the invention also relates, in a second embodiment, to a so-called autonomous fixed mechanical connection piece such as that described previously (before the description of the subordinate fixed mechanical connection part), in which the first cradle and the second cradle are turned on one side and the other of the fixed mechanical connection piece autonomous to an axis orthogonal to the axes of the cradles, the longitudinal edges of the first cradle and the outer face of the second cradle to the fixed connection are substantially coplanar or tangent , in which for the fixed mechanical connection, there is permanent, firm and intimate application, and implementation of the weight of the profile on the cradle below and the weight of the cradle and the fixed mechanical connection piece autonomous on the profile below.
• the invention also relates to an assembly of profiles comprising a first section and a second connected section. mechanically in a fixed manner, if necessary removable, by a fixed mechanical connection piece autonomous as just described.
• the first profile is an open profile having a U-shaped cross-section or pseudo U or comprising a U and the second profile is a closed profile such as a tube, in particular a profile. open and a tube of reinforced plastic with smooth extrados, in particular without an outer thermoplastic coating that can be depressed locally.
• the extrados of the first profile has, in cross section, a shape of U or pseudo U or comprising a U and the intrados of the first cradle has, in cross section, a shape U or pseudo U or comprising a U
• the extrados of the second section has a cross section, a circular shape
• the intrados of the second cradle has, in cross section, a substantially semi circular shape
• the invention also relates to a modular support structure comprising a plurality of profiles and one or more fixed mechanical connection parts as described above, and / or one or more subordinate fixed mechanical connection parts as described above, and / or one or more sets of fixed mechanical connection as described above, and / or one or more autonomous fixed mechanical connection parts as described above, arranged to ensure a fixed mechanical connection between the profiles, said modular carrier structure being perforated, rigid, and being adapted and intended for the realization of functional assemblies with the implementation of "Lean Manufacturing", such as shelves, bases (for example for a worktop), trolleys, conveying devices, guiding devices, " picking, unloading devices, trolleys, wagons, workstations .
• Lean Manufacturing such as shelves, bases (for example for a worktop), trolleys, conveying devices, guiding devices, " picking, unloading devices, trolleys, wagons, workstations .
• the invention also relates to a functional assembly for an industrial production process or logistics or distribution with implementation of "Lean Manufacturing”, such as a rack, a base, a service, a conveying device, guiding, "Picking", an unloading device, a trolley, a wagon, a workstation, comprising a modular carrier structure as described above and one or more specific complementary functional devices, such as receptacles, rails, rollers, stops, slides , wheels, means for driving or moving.
• Lean Manufacturing such as a rack, a base, a service, a conveying device, guiding, "Picking", an unloading device, a trolley, a wagon, a workstation, comprising a modular carrier structure as described above and one or more specific complementary functional devices, such as receptacles, rails, rollers, stops, slides , wheels, means for driving or moving.
• the subject of the invention is the use of a composite wall which comprises, superimposed in a solidly integral part in the form of an outer layer, towards the extrados, having a high rigidity and a high resistance. comparable to those of a rigid and resistant steel, and an inner layer-shaped portion, of thermoplastic polyurethane or the like, having good strength and elastic flexibility, to form a fixed mechanical connection piece, a mechanical connecting piece subordinate fixed station, an autonomous fixed mechanical connection piece intended to mechanically connect in a fixed manner, where appropriate removable, a first section and at least a second section.
• the production of the first wall, the second wall, the first cradle, the second cradle, the fixed mechanical connection piece, in a composite manner with an outer layer-shaped part and a thermoplastic polyurethane inner layer-shaped part or analog having a good resistance and a certain elastic flexibility, makes it possible to achieve a fixed mechanical connection piece having the advantages, as well as a solidity and a durability at least equal to those of the known metal fixed mechanical connection pieces described in the documents FR 2 779 782, EP 1 795 766 , and EP 2 123 919. If, as for these known metal fixed mechanical connection pieces, provision is made for the application of a permanent cradle / associated profile force in the direction of contact between the lower surface of the cradle and the cradle.
• the means of the fixed mechanical connection is however different.
• the realization of such grooves or projections is complex because they must be precise.
• the production of such profiles is complex.
• the profiles have marks at the location of the anchoring projections, which limits or prevents the reuse of the profiles.
• the projections can deteriorate with use, which also limits or prevents the re-use of fixed mechanical connection parts. In all cases, the most important maintenance is provided very localized at the location of the projections.
• the subordinate fixed mechanical connection part comprises a through-hole.
• a seal of a material having good strength and elastic flexibility, thermoplastic polyurethane or the like in which the nut can be force-fitted and held during mounting of the clamping means.
• the mechanical connection parts can without great difficulty have an attractive shape, which is hardly possible with shaped metal parts and wall-shaped. It is also possible to provide that the outer face of the fixed mechanical connection parts is uniform and smooth. In addition, in the case especially of the subordinate parts, one can avoid the existence of a day or a substantial day visible between the two subordinate fixed mechanical connection parts arranged face to face.
• the realization of the fixed mechanical connection part with an outer layer-shaped part and an inner layer-shaped part opens up the possibility of visual effects such as color contrast.
• the invention it is possible to avoid dirt traps, as well as the projections that cause inadvertent attachment.
• the provision of a locking ring is an additional safety factor, made possible by the prediction in the locking groove parts, which can not be envisaged with the connecting pieces.
• Figure 1 is to illustrate the field of the invention and shows a known arrangement of functional assemblies with implementation of "Lean Manufacturing”.
• FIG. 2 is a perspective view of an assembly of two sections (shown in phantom) with a fixed mechanical connection assembly comprising two subordinate fixed mechanical connection parts, without the locking ring.
• FIG. 3 is a sectional view of one of the two subordinate fixed mechanical connection parts of FIG.
• the wall of the first, second, cradle comprises an outer layer-shaped part and an inner layer-shaped part, respectively towards the extrados and the intrados, than the intrados of the inner layer, the underside of the cradle, is uniform, smooth and devoid of projections, that the inner layer of the cradles is extended by a lateral flange extension, that the first cradle has on the inside a partition transverse to the fixed connection with the second cradle, that the first cradle axis and the second cradle axis are at right angles, there is provided in the fixed connection, a single stepped through hole and a positioning projection, that there is provided a garnitur e in which a nut can be forced down and held.
• FIGS. 4 and 5 are two sectional views of the subordinate fixed mechanical connection part of FIG. 3, along line 11-11 and IV-IV, respectively, illustrating, in addition, in particular, that rigid connection interface of the outer layer, inner, the first cradle is uniform, that the rigid connection interface of the outer, inner layer of the second cradle has recesses and transverse alternating projections, that the inner layer of the cradles is extended by a lateral flange extension and that this lateral flange extension is extended by a development integral with the external free face of the outer layer of the second cradle, the second cradle extends from one edge to the other edge of the fixed mechanical connection piece through it through, that is provided in the fixed connection, in addition to the single stepped through hole and the positioning projection, a tr or positioning.
• Fig. 6 is a perspective view of a locking ring showing a lock pin.
• Figure 7 is a perspective view of two subordinate fixed mechanical connection parts showing a locking groove.
• FIG. 8 is a perspective view of the assembly of Figure 2, with the locking ring.
• FIG. 9 is a perspective view of a variant of a subordinate fixed mechanical connection piece as previously shown, the first composite wall of which has an inner layer-shaped portion which includes an extension forming the distal transverse edge of the first end of the room.
• Figure 10 is a front perspective view of an assembly of two sections (shown in phantom) with an autonomous fixed mechanical connection piece.
• Figure 1 1 is a rear perspective view of an autonomous fixed mechanical connection part according to a variant with a projection.
• FIGS. 12 and 13 are two views, respectively in perspective and from above, illustrating another embodiment of a fixed mechanical connection assembly comprising two subordinate fixed mechanical connection parts intended to ensure a fixed mechanical connection of sections arranged one compared to the other side by side with an inclination between them.
• a fixed mechanical connection piece 1 is intended to mechanically connect in a fixed manner, where appropriate removable, a first section 2a, rigid, and a second profile 2b, rigid.
• a fixed mechanical connection piece 1 is intended to mechanically connect fixed more than two profiles.
• the fixed mechanical connection piece 1 is a so-called subordinate fixed mechanical connection part 3a.
• a part is qualified as “subordinate” because it operates with another analogous part: a first such subordinate fixed mechanical connection part 3aa is intended to be associated with a second such analogous connecting part, 3ab, the two parts 3aa and 3ab forming part of a stationary mechanical connection assembly 4.
• the fixed mechanical connection part 1 is a so-called autonomous fixed mechanical connection part 3b.
• autonomous fixed mechanical connection part 3b Such a room is described as “autonomous” because it works alone.
• a subordinate fixed mechanical connection part 3a and an autonomous fixed mechanical connection part 3b have a number of common features.
• a fixed mechanical connection piece is matched with the reference numeral 1, its characteristics being in principle applicable to the subordinate fixed mechanical connection parts 3a and 3b autonomous.
• the fixed mechanical connection part 1 comprises, first of all, a first cradle 5a, having a first axis D, including a first wall 6a whose intrados 7a is adapted to receive, cooperate and come into contact with the extrados 8a a longitudinal section 9a of the first section 2a.
• this longitudinal section 9a of the first section 2a is an end section.
• this longitudinal section 9a of the first section 2a is or not an end section.
• the fixed mechanical connection piece 1 then comprises a second cradle 5b, having a second axis E, including a second wall 6b whose intrados 7b is adapted to receive, cooperate and come into contact with the extrados 8b of a longitudinal section 9b of the second section 2b.
• this longitudinal section 9b of the second profile 2b may be a section other than an end section and, typically, is not an end section.
• the reference numeral 6 for a wall is used, the numeral 7 for the intrados, the numerical reference 8 for the extrados.
• the section 2 can be made of reinforced plastic material, have a smooth upper surface 8, and be free of an outer thermoplastic coating that can be driven locally, as is known from the state of the prior art.
• the fixed mechanical connection of the profiles 2 between them is provided by their only extrados 8.
• it is not necessary to provide that one or / and the other of the sections 2 is indented or pierced for the passage of a clamping member such as a bolt.
• the fixed mechanical connection part 1 also comprises a fixed connection 19 between the first cradle 5a and the second cradle 5b.
• the term "fixed link” should be understood to mean a portion of the fixed mechanical connection piece 1 structurally more or less distinct from the cradles 5a, 5b, which connects these cradles 5a, 5b so that they form together and with the fixed link 19, a generally rigid part, the cradles 5a, 5b having a relative position fixed relative to each other.
• the wall 6 of the cradle 5 is composite and comprises, superimposed as a whole, an outer layer-shaped portion 10 and an inner layer-shaped portion 11.
• the outer layer-shaped portion 10 is referred to as the "outer layer” 10
• the inner layer-shaped portion 11 is referred to as the "inner layer” 11.
• this constructive arrangement is for both the first cradle 5a and the second cradle 5b.
• the term "layer” should be understood to mean that parts 10 and 11 have a superficial extent - which in this case is not flat - and a relatively small thickness - and which in this case is not constant - compared to the superficial extent.
• the term "interior” and the term “exterior” should be understood in relation to what in the profile assembly is, respectively, inward - that is, near or turned in the profiles 2 -, and outward - that is to say, remote, separated, remote or turned away from the profiles 2 -.
• the outer layer 10 is located towards the extrados or outer free face 12 of the cradle 5 and the fixed mechanical connection piece 1. It is limited, outwardly, by this extrados, outer free face 12, and inwardly by a rigid connection interface 13 with the inner layer 11.
• the inner layer 1 1 is located towards the lower or inner free face 7, the cradle 5 and the fixed mechanical connection part 1. It is limited, on one side (inwards), by this lower surface, internal free face 7, and on the other side (towards the inside) by a rigid connection interface 15 with the outer layer 10.
• the outer layer 10 has a high rigidity and high strength comparable to those of a rigid steel and resistant and therefore dimensionally stable. It may be made of a plastic material which is a partially aromatic polyamide thermoplastic, in particular reinforced with glass fibers, carbon or the like.
• the inner layer 1 1 is made of thermoplastic polyurethane or the like, having good strength and elastic flexibility, but low. To illustrate the low degree of flexibility, it can be said that a strong application of a finger on the intrados, inner free face 7, of the inner layer 1 1 is insufficient to deform, while a strong application with a sharp tool (such as a screwdriver) leads to a local deformation, in this case a recess, circumscribed at the point where the pointed tool is applied. In addition, this local deformation, depression, is elastic, the intrados, inner free face 7, returning to its original shape once the application of the pointed tool ceases. Thus, when the profile assembly is made, the inner layer 1 1 is not, or not substantially, or only very slightly compressed.
• the lower surface, inner free face 7, is uniform and smooth. It is in particular devoid of projections known from the state of the prior art. In addition, it has a high sliding friction relative to the extrados 8 of the profiles 2.
• the flexibility of the inner layer 1 1 is essentially to ensure that when performing the assembly of profiles by application respective fixed mechanical connection part 1 / profile 2, the intrados, internal free face 7, of the inner layer 1 1 fits perfectly and intimately the extrados 8 of the section 2 considered.
• the flexibility of the inner layer 1 1 does not therefore result in a substantial crushing of the inner layer January 1, as would be the case, for example, with a compressible plastic gasket whose thickness can be reduced so important when one exerts on him even limited pressure.
• the cradle wall 6 may be, respectively, free of rigid metal layer.
• the rigid securing interface 13 of the outer layer 10 and the rigid securing interface 15 of the inner layer 1 1 are secured in a fixed and inseparable manner.
• the wall 6 and the fixed mechanical connection piece 1 by injection of a plastic material forming the outer layer 10 and thermoplastic polyurethane or the like forming the inner layer 11, in particular by two injection.
• the force of permanent application cradle 5 / associated section 2 is such that the lower surface, inner free face 7, of the cradle 5 is applied intimately on the extrados 8 of the associated section 2, in the manner of a suction cup, which thus participates in the fixed mechanical connection of the fixed mechanical connection part 1 and the two sections 2.
• the inner layer 1 acts in a manner that is similar to that of a suction cup, in that as a result of the application of the intrados, inner free face 7 - which is uniform and smooth - on the extrados 8, the first (lower surface, inner free face 7) tends to adhere, or adheres to the second (upper 8), the air between them tending to be hunted or being driven, and this because of the certain flexibility of the inner layer 1 1, the rigidity of the profile 2, and while it is possible that the entire intrados, inner free face 7, intended to be applied on and in contact with the extrados 8 is as the inner layer, thermoplastic polyurethane or the like.
• the rigid securing interface 13 of the outer layer 10 of the second cradle 5b comprises reliefs 16a, in particular recesses and transverse alternating projections (with respect to the axis E), and the interface of FIG. rigid connection 15 of the inner layer 1 1 of the second cradle 5b comprises reliefs 16b, in particular recesses and transverse alternating projections (with respect to the axis E), the reliefs 16a and 16b being complementary.
• This constructive arrangement provides high solidarity between the two layers 10 and 11.
• the inner layer 1 1 of the cradle 5 is extended by an extension 17 forming a rather thin lateral rim, directed away from the axis D, E.
• This Lateral edge extension 17 is secured in contact with a longitudinal edge 18 of the outer layer 10 of the cradle 5.
• the thickness of the lateral flange extension 17 is relative value, a fraction - for example of the order of 20% - of the thickness of the wall 6, and, in absolute value, of the order of one millimeter.
• a longitudinal edge 18 of the outer layer 10 of the cradle 5 is substantially completely covered by a side flange extension 17. With such an embodiment, the extension forming side rim 17 forms the song of the cradle 5.
• the lateral flange extension 17 is provided both for the first cradle 5a, for the second cradle 5b, and the fixed connection 19.
• this lateral flange extension 17 is on the whole of the subordinate fixed mechanical connection piece 3aa, located in the joint plane P with a second subordinate fixed mechanical connection piece 3ab analogous.
• This lateral flange extension 17 then forms the joining zone of the two subordinate fixed mechanical connection parts 3aa and 3ab.
• the two lateral flange extensions 17 forming flange of the two subordinate fixed mechanical connection parts 3aa and 3ab can be in contact with each other or in close proximity to each other, so that no day, or any substantial day, exists between the two subordinate fixed mechanical connection parts 3aa and 3ab.
• the lateral flange extension 17 of the inner layer 1 1 of the cradle 5 can be prolonged by a development 20 of the constituent material of the inner layer 11, which material development of the inner layer 11 is secured to the contact with the extrados, outer free face 12, of the outer layer 10 of the cradle 5.
• the material 20 development of the inner layer 1 1 is provided on the second cradle 5b.
• this development 20 takes the form of two tongues extending transversely on the second cradle 5b.
• the material 20 development of the inner layer 1 1 is integral with the contact and fills a recessed portion 21 formed in the extrados, outer free face 12, of the outer layer 10 of the cradle 5. What has has been described more specifically for the second cradle 5b can be transposed to the first cradle 5a.
• the inner layer 1 1 of the first cradle 5a is extended opposite the first cradle 5a by an extension 35 directed transversely to the axis D towards the outside.
• This extension 35 forms the distal transverse edge 29 of the first end of the subordinate fixed mechanical connection piece 3a.
• Figure 3 illustrates, in the case of a subordinate fixed mechanical connection piece 3a, that the first cradle 5a has inside a projection or transverse partition 22 located towards the fixed link 19.
• the first section 2a which extends entirely on the same side of the subordinate fixed mechanical connection piece 3a (opposite the second cradle 5b) can, if necessary abut against this projection or transverse partition 22.
• What has been described more specifically for a subordinate fixed mechanical connection piece 3a can be transposed to an autonomous fixed mechanical connection piece 3b.
• Figures 4 and 9 illustrate, in the case of a subordinate fixed mechanical connection piece 3a, that the second cradle 5b extends from one edge to the other edge of the connecting piece. subordinate fixed mechanics 3a passing through it from one side to the other.
• the subordinate fixed mechanical connection part 3a is able to be connected to a second single section 2b extending on both sides of the subordinate mechanical connection piece 3a.
• this embodiment also allows a connection with a second section 2b extending entirely on the same side of the subordinate mechanical connection piece 3a. It also allows a connection to two second profiles 2b arranged in extension of one another, each extending entirely on the same side of the subordinate fixed mechanical connection piece 3a opposite one of the 'other. What has been described more specifically for a subordinate fixed mechanical connection part 3a can be transposed to an autonomous fixed mechanical connection part 3b.
• the second cradle 5b extends from one edge to the other edge of the fixed mechanical connection piece 1 by passing through it from one side to the other, but it has inside a protrusion or transverse partition.
• the subordinate fixed mechanical connection piece 3a is able to be connected to a second single profile 2b extending entirely on the same side of the fixed mechanical connection piece.
• subordinate 3a is to be connected to two second profiles 2b in extension of one another, each extending entirely on the same side of the subordinate fixed mechanical connection piece 3a. This arrangement can be applied both to a subordinate fixed mechanical connection piece 3a and to an independent fixed mechanical connection piece 3b.
• the second cradle 5b extends over a portion only between the two edges of the fixed mechanical connection part 1, without passing through it from one side.
• the fixed mechanical connection piece 1 is able to be connected to a second single profile extending entirely on the same side of the fixed mechanical connection part 1. This arrangement can be applied both to a subordinate fixed mechanical connection piece 3a and to an independent fixed mechanical connection piece 3b.
• first axis D and the second axis E are arranged relative to each other transversely, at right angles.
• the axes D and E may also, in other embodiments not shown, be arranged transversely relative to each other, but with an inclination, or be arranged in parallel, either coaxially in extension of one another or being spaced transversely from each other, or else be side by side with a certain inclination, as illustrated by Figures 12 and 13.
• FIGS. 2 to 5 and 7 to 9 illustrate a subordinate fixed mechanical connection part 3a, a fixed mechanical connection assembly 4 comprising two such subordinate fixed mechanical connection parts 3aa and 3ab and the corresponding assembly profiles 2a and 2b.
• a first subordinate fixed mechanical connection piece 3aa is adapted and intended to be rigidly associated with a second subordinate fixed mechanical connection piece 3ab, similar to both sides of the profiles 2a and 2b.
• the first cradle 5a and the second cradle 5b are turned on the same side of the subordinate fixed mechanical connection part 3a, towards an axis F, orthogonal to the axes D and E.
• the longitudinal edges of the first cradle 5a and the second cradle 5b, especially formed by the lateral flange extension 17 of the inner layer 10 are substantially coplanar or tangent, and define the joint plane P.
• a stepped through hole 23 adapted and adapted to allow the mounting of a part of a clamping means 24 - such as a bolt - of the first subordinate fixed mechanical connection piece 3aa and the second connecting piece subordinate fixed mechanics 3ab.
• the through hole 23 extends along the axis F.
• the two through holes 23 of the first subordinate fixed mechanical connection part 3aa and the second subordinate fixed mechanical connection part 3ab come in correspondence, the arrangement of the hole 23 on the subordinate fixed mechanical connection piece 3a is suitable and intended for this purpose.
• the subordinate fixed mechanical connection piece 3a has only one stepped through hole 23 disposed in the middle position.
• the fixed connection 19 which extends so as to be adjacent to the first cradle 5a in its axial extension and to the proximal longitudinal edge 25 of the second cradle 5b.
• the stepped through hole 23 located in the middle position.
• a positioning projection 26a and a positioning hole 26b extending in the same direction as the axis of the hole, that is to say along the axis F.
• the arrangement of the positioning projection 26a and the positioning hole 26b on the subordinate fixed mechanical connection piece 3a is such that when the first subordinate fixed mechanical connection piece 3aa and the second subordinate fixed mechanical connection piece 3ab are associated, the positioning projection 26a of one cooperates with the positioning hole 26b of the other and vice versa.
• the stepped through hole 23 of a first subordinate fixed mechanical connection piece 3aa is adapted to receive a nut 24b of the clamping means 24 and there is provided in this hole 23, a lining 27 of a material having good strength and elastic flexibility, such as thermoplastic polyurethane or the like.
• a lining 27 of a material having good strength and elastic flexibility such as thermoplastic polyurethane or the like.
• the outer free face 12, of the outer layer 10 and the subordinate fixed mechanical connection part 3a may be substantially uniform and smooth, with, where appropriate, the presence of a hollow localized functional zone. 28, in connection with a locking ring 31.
• a hollow localized functional zone 28 forming a locking groove 28 may be provided on the first cradle 5a and extend from the free transverse edge 29 of the first cradle 5a.
• Such a hollow localized functional zone 28 forming a locking groove 28 is adapted and intended to cooperate with a stud 30 of a locking ring 31.
• the width of the first cradle 5a is of the same order of magnitude as the length of the second cradle 5b
• the subordinate rigid mechanical connection piece 3a can be part of an envelope having, for example, a length of the order d a dozen centimeters, a width of the order of five centimeters and a height of the order of two centimeters, not including the positioning projection
• the subordinate rigid mechanical connection piece 3a can have a mass of the order 35 grams.
• the intrados 7a of the first cradle 5a and the intrados 7b of the second cradle 5b have, in transverse cross-section, a substantially semi-circular shape, the first wall 6a and the second wall 6b having in cross section, a generally semi-circular general shape.
• this achievement is not exclusive of others.
• the fixed mechanical connection assembly 4 comprises a first subordinate fixed mechanical connection part 3aa and a second analogous fixed mechanical connection part 3ab. It also comprises the clamping means 24 and, when this is provided, the locking ring 31.
• This locking ring 31 is annular in shape with at least one radial pin 30 inwards. It is suitable and intended to be arranged around the first subordinate fixed mechanical connection part 3aa and the second subordinate fixed mechanical connection part 3ab, on the side of their first cradles 5a, and around the first section 2a, so as to cooperate with friction with the extrados, outer free faces 12, a pin 30 being adapted and intended to cooperate with a locking groove 28.
• FIGS. 12 and 13 Another possible embodiment of the two subordinate fixed mechanical connection parts 3a and a fixed mechanical connection assembly 4 comprising them is illustrated by FIGS. 12 and 13.
• the first axis D of the first cradle 5a and the second axis E of the second 5b cradle are arranged side by side with a small inclination of acute angle may be of the order of ten degrees, this inclination value is not however limiting.
• each subordinate fixed mechanical connection piece 3a may be symmetrical with respect to a plane passing through the axis F, disposed centrally with respect to the axes D and E.
• the first section 2a is held in a longitudinal section 9a which, as required and the embodiments, is an end section or is a section other than an end section.
• the first axis D of the first cradle 5a and the second axis E of the second cradle 5b are arranged side by side in parallel manner, without inclination with respect to each other.
• Subassembled fixed mechanical connection parts 3a make it possible to produce such a fixed mechanical connection assembly 4 which, together with the first profile 2a and the second profile 2b, make it possible to form a connection of sections that are rigidly connected.
• the first profile 2a and / or the second profile 2b is a closed profile such as a hollow tube, in particular a smooth-extrados reinforced plastic tube, in particular without an outer thermoplastic coating that can be depressed locally.
• the extrados 8 of the profiles 2a, 2b has, in transverse cross section, a circular shape
• the intrados 7 of the first cradle 5a and the second cradle 5b has, in transverse cross section, a substantially semi form circular, the first wall 6a and the second wall 6b having in cross section, a generally semi-circular general shape.
• the first cradle 5a and the second cradle 5b are turned on one side and the other of the autonomous fixed mechanical connection piece 3b towards the axis F.
• the longitudinal edges 32 of the first cradle 5a and the outer face 33 of the second cradle to the fixed link 19 are substantially coplanar or tangent.
• the first section 2a may be an open profile having a U-shaped or pseudo-U cross-section or comprising a U and the second profile 2b may be a closed profile such as 'a tube.
• the open section 2a and the tube 2b can be made of reinforced plastic material with smooth extrados, and in particular be devoid of a surface thermoplastic coating which can be depressed locally.
• the extrados 8 of the first section 2a has, in transverse cross section, a shape of U or pseudo U or comprising a U and the intrados 7a of the first cradle 5a has, in cross section, a shape of U or pseudo U or comprising a U.
• the extrados 8 of the second section 2a has, in transverse cross section, a circular shape, the intrados 7b of the second cradle 5b having, in cross section, a substantially semi circular shape .
• the two autonomous fixed mechanical connection parts 3b of FIGS. 10 and 11 are distinguished from each other by the fact that that of FIG. 11 comprises a projection 34 situated on the outside face 33 of the second cradle 5b. extending parallel to the axis E over here the entire axial length of the second cradle 5b.
• This projection has an overall dimension counted along the axis F which is of the order of magnitude of the depth of the second cradle 5b along this axis F.
• the invention also relates to a modular support structure comprising a plurality of profiles 2 and one or more fixed mechanical connection parts 1, one or more subordinate fixed mechanical connection parts 3a, one or more fixed mechanical connection assemblies 4, one or more a plurality of autonomous fixed mechanical connection parts 3b, arranged to ensure a fixed mechanical connection between the profiles 2.
• a modular carrier structure is perforated, rigid, and is designed to be adapted and intended for the realization of functional assemblies with implementation of "Lean Manufacturing".
• Such functional units for an industrial production or logistics or distribution process with the implementation of "Lean Manufacturing” are, for example, shelves, bases (for example for a worktop), trolleys, conveying devices. , guiding, picking, unloading devices, trolleys, wagons, workstations. They comprise a modular carrier structure as mentioned above and one or more complementary functional devices specific, such as receptacles, rails, rollers, stops, slides, wheels, means of training or displacement.
• the invention relates to the use of a composite wall 6 which comprises, superimposed as a whole integral part in the form of outer layer 10, to the upper surface 12, having a high rigidity and a high strength comparable to that of a rigid and strong steel, and an inner layer-shaped portion 1 1, thermoplastic polyurethane or the like, having good strength and elastic flexibility, to form a stationary mechanical connection part 1, 3a, 3b, intended to mechanically connect in a fixed manner, possibly removable, a first section 2a and a second profile 2b.

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• 2013
  • 2013-06-07 FR FR1355300A patent/FR3006724B1/fr active Active
  • 2013-11-08 BR BR112015030601A patent/BR112015030601A2/pt not_active IP Right Cessation
  • 2013-11-08 MX MX2015016843A patent/MX2015016843A/es unknown
  • 2013-11-08 EP EP13803119.0A patent/EP3004659A1/de not_active Withdrawn
  • 2013-11-08 WO PCT/FR2013/052687 patent/WO2014195587A1/fr active Application Filing
  • 2013-11-08 US US14/896,609 patent/US20160131168A1/en not_active Abandoned
  • 2013-11-08 CA CA2914670A patent/CA2914670A1/fr not_active Abandoned

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