EP3383562A1 - Mechanical spacer - Google Patents

Mechanical spacer

Info

Publication number
EP3383562A1
EP3383562A1 EP16819530.3A EP16819530A EP3383562A1 EP 3383562 A1 EP3383562 A1 EP 3383562A1 EP 16819530 A EP16819530 A EP 16819530A EP 3383562 A1 EP3383562 A1 EP 3383562A1
Authority
EP
European Patent Office
Prior art keywords
spacer
central rod
plates
bevels
spacer plates
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP16819530.3A
Other languages
German (de)
French (fr)
Other versions
EP3383562B1 (en
Inventor
Haydar SERBES
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Carrosserie Technic
Original Assignee
Carrosserie Technic
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 Carrosserie Technic filed Critical Carrosserie Technic
Publication of EP3383562A1 publication Critical patent/EP3383562A1/en
Application granted granted Critical
Publication of EP3383562B1 publication Critical patent/EP3383562B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D41/00—Application of procedures in order to alter the diameter of tube ends
    • B21D41/02—Enlarging
    • B21D41/026—Enlarging by means of mandrels
    • B21D41/028—Enlarging by means of mandrels expandable mandrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/08—Tube expanders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/08—Tube expanders
    • B21D39/20—Tube expanders with mandrels, e.g. expandable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D41/00—Application of procedures in order to alter the diameter of tube ends
    • B21D41/02—Enlarging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D41/00—Application of procedures in order to alter the diameter of tube ends
    • B21D41/02—Enlarging
    • B21D41/026—Enlarging by means of mandrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
    • B21D1/12—Straightening vehicle body parts or bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D41/00—Application of procedures in order to alter the diameter of tube ends
    • B21D41/02—Enlarging
    • B21D41/021—Enlarging by means of tube-flaring hand tools

Definitions

  • the invention relates to the technical field of mechanical spacers, used in particular for straightening the chassis of a vehicle.
  • the invention relates more particularly to a hydraulic retractor for straightening a spar of the chassis of a vehicle.
  • Document CN102275154 discloses a hydraulic spacer comprising spacer arms actuated by a hydraulic piston. This type of spacing can be used in bodywork, in particular for straightening the frame rails of a vehicle curved due to an accident. Once the spars are straightened using a straightening square, a crease is usually observed at the initial curvature. It is then necessary to introduce a spacer tool inside the spar which is generally a beam with a hollow section. It has however been observed that the device disclosed in the document of the prior art was difficult to use and did not offer optimal performance to remove the wrinkles observed in the side members. Summary of the invention
  • An object of the invention is to overcome the disadvantages of the prior art described above.
  • the present application therefore aims to provide a retractor easy to use and effective in bodywork straightening work, in particular to remove the wrinkles observed in the frame of a vehicle chassis.
  • the invention relates to a mechanical spacer according to a spacing axis, characterized in that it comprises a support and two spacer plates, each spacer plate comprising at least one bevel, and in that it also comprises a central rod capable of sliding in said support between the two spacer plates, said central rod comprising a plurality of bevels having a profile complementary to the bevels of said spacer plates, the bevels of said central rod being in contact with the bevels of said spacer plates, said spacer also comprising biasing means capable of exerting a restoring force on the spacer plates, means for actuating the central rod in translation and means for immobilizing the spacer plates in planes perpendicular to said spacer axis.
  • the sliding of the central rod between the two spacer plates makes it possible to obtain a spacing of the said plates due to the relative sliding of the bevels of the central rod and those of the spacer plates.
  • the contact area between the bevels of the central rod and those of the spacer plates is maximum, whereas it is reduced during the sliding of the central rod, which causes the spacing of the plates.
  • the complementary profile of the bevels of the central rod and those of the spacer plates ensures the parallel spacing of the plates. spacing, the slopes of the central rod bevels and spacer plates being canceled once they are in contact with one another.
  • the parallel spacing obtained in this manner has been found to be particularly effective for body straightening work such as wrinkle removal on spars.
  • the bevelled part of the plates must advantageously occupy a large part of the surface of said plates because during the separation, only the Beveled parts of the plates remain in contact with the bevels of the central rod which transmits the spreading force.
  • the maximum slope of the bevel machined on each spacer plate is further limited by the thickness of the spacer plates.
  • the spacer plates of the spacer according to the invention comprise at least two bevels. With equal plate thickness, by multiplying the number of bevels, it is possible to increase the slope thereof because their length is reduced compared to the length of a single bevel.
  • the means for actuating the central rod in translation comprise a hydraulic jack system.
  • Other actuation means may also be envisaged, such as a pneumatic jack system or else such as a thread on the central rod which is then actuated in translation by the rotation of a threaded piece surrounding said central rod.
  • FIG. 1 is a view of the spacer according to the invention
  • Fig. 2 is a first sectional view of the retractor
  • Fig. 3 is a second sectional view of the retractor
  • Fig. 1 therefore represents an embodiment of the spacer according to the invention can be used for example for straightening the spar of a vehicle along a spacing axis 10.
  • the spacer comprises a support 1 and two spacer plates 2.
  • the support 1 comprises a hollow head 7 comprising lateral openings 9, said spacer plates 2 being inserted into said lateral openings 9.
  • the support 1 also comprises a cylinder 11 in which are located the central rod and the means of translation actuation thereof.
  • the spacer plates 2 comprise removable layers 12 attached by means of fastening means 13. In this way, the initial spacing between the spacer plates can be adjusted according to the dimensions of the spar to be straightened.
  • the spacer further comprises a front opening 9 allowing the passage of the central rod.
  • the spacer further comprises protrusions 8 around said lateral openings 9 which act as immobilizing means for the spacer plates 2 in planes perpendicular to said spacing axis 10.
  • the spacer plates must in fact only be to be able to move in the direction of the spreading axis 10 and not to be movable in the other directions of the space.
  • Fig. 2 represents a first sectional view of the spacer according to the invention. In this view, are visible the bevels 5 of the central rod 4, as well as the passages 6 machined in the support 1 which are traversed by springs connecting the two spacer plates 2. These springs thus play the role of means of reminder about spacer plates to remain secured to the support.
  • Fig. 3 shows another sectional view of the spacer according to the invention.
  • the spacer is in the initial position, that is to say before separation.
  • the bevels 5 of the central rod 4 and the bevels 3 of the spacer plates 2 are indeed in full contact with each other.
  • the spacing of the plates 2 will occur during the sliding of the central rod 4 towards the front opening 9 in the support 1.
  • the plates 2 will deviate while the contact area between the bevels 5 of the central rod 4 and the bevels 3 of the spacer plates 2 will decrease.
  • the passages 6 for receiving the springs interconnecting the spacer plates in order to exert a restoring force on them.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Springs (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)

Abstract

A mechanical spacer for spacing along a spacing axis, characterised in that it comprises a support (1) and two spacer plates (2), each spacer plate (2) comprising at least one bevel (3), and in that it also comprises a central rod (4) capable of sliding in said support (1) between the two spacer plates (2), said central rod (4) comprising a plurality of bevels (5) having a profile complementary to the bevels (3) of said spacer plates (2), the bevels (5) of said central rod (4) being in contact with the bevels (3) of said spacer plates (2), said spacer also comprising return means capable of exerting a return force on the spacer plates (2), means for biasing the central rod (4) and means for immobilising the spacer plates (2) in planes perpendicular to said spacing axis.

Description

Ecarteur mécanique  Mechanical spreader
Domaine de l' invention Field of the invention
L' invention se rapporte au domaine technique des écarteurs mécaniques, utilisés notamment pour le redressage du châssis d'un véhicule.  The invention relates to the technical field of mechanical spacers, used in particular for straightening the chassis of a vehicle.
L' invention se rapporte plus particulièrement à un écarteur hydraulique pour le redressage d'un longeron du châssis d'un véhicule. The invention relates more particularly to a hydraulic retractor for straightening a spar of the chassis of a vehicle.
État de la technique State of the art
Le document CN102275154 divulgue un écarteur hydraulique comprenant des bras d' écartement actionnés par un piston hydraulique. Ce type d' écartement peut être utilisé dans les travaux de carrosserie, en particulier pour redresser les longerons du châssis d'un véhicule courbés en raison d'un accident. Une fois les longerons redressés à l'aide d'une équerre de redressage, un pli est habituellement observé au niveau de la courbure initiale. Il est alors nécessaire d'introduire un outil écarteur à l'intérieur du longeron qui est en général une poutre avec une section creuse. Il a cependant pu être observé que le dispositif divulgué dans le document de l'art antérieur était difficile à utiliser et n'offrait pas des performances optimales pour faire disparaître les plis observés dans les longerons. Résumé de l'invention  Document CN102275154 discloses a hydraulic spacer comprising spacer arms actuated by a hydraulic piston. This type of spacing can be used in bodywork, in particular for straightening the frame rails of a vehicle curved due to an accident. Once the spars are straightened using a straightening square, a crease is usually observed at the initial curvature. It is then necessary to introduce a spacer tool inside the spar which is generally a beam with a hollow section. It has however been observed that the device disclosed in the document of the prior art was difficult to use and did not offer optimal performance to remove the wrinkles observed in the side members. Summary of the invention
Un but de l'invention est de remédier aux inconvénients de l'art antérieur exposé ci-dessus. La présente demande a donc pour but de proposer un écarteur facile à utiliser et efficace dans les travaux de redressage de carrosserie, en particulier pour faire disparaître les plis observés dans les longerons du châssis d'un véhicule. An object of the invention is to overcome the disadvantages of the prior art described above. The present application therefore aims to provide a retractor easy to use and effective in bodywork straightening work, in particular to remove the wrinkles observed in the frame of a vehicle chassis.
A cette fin, l'invention se rapporte à un écarteur mécanique selon un axe d' écartement , caractérisé en ce qu'il comprend un support et deux plaques d' écartement , chaque plaque d' écartement comprenant au moins un biseau, et en ce qu' il comprend également une tige centrale apte à coulisser dans ledit support entre les deux plaques d' écartement , ladite tige centrale comprenant une pluralité de biseaux ayant un profil complémentaire aux biseaux desdites plaques d' écartement , les biseaux de ladite tige centrale étant en contact avec les biseaux desdites plaques d' écartement , ledit écarteur comprenant également des moyens de rappel aptes à exercer une force de rappel sur les plaques d' écartement , des moyens d' actionnement en translation de la tige centrale et des moyens d'immobilisation des plaques d' écartement dans des plans perpendiculaires audit axe d' écartement . To this end, the invention relates to a mechanical spacer according to a spacing axis, characterized in that it comprises a support and two spacer plates, each spacer plate comprising at least one bevel, and in that it also comprises a central rod capable of sliding in said support between the two spacer plates, said central rod comprising a plurality of bevels having a profile complementary to the bevels of said spacer plates, the bevels of said central rod being in contact with the bevels of said spacer plates, said spacer also comprising biasing means capable of exerting a restoring force on the spacer plates, means for actuating the central rod in translation and means for immobilizing the spacer plates in planes perpendicular to said spacer axis.
Le coulissement de la tige centrale entre les deux plaques d' écartement permet d'obtenir un écartement des desdites plaques en raison du glissement relatif des biseaux de la tige centrale et de ceux des plaques d' écartement . Initialement, l'aire de contact entre les biseaux de la tige centrale et ceux des plaques d' écartement est maximale, tandis qu'elle se réduit au cours du coulissement de la tige centrale, ce qui provoque 1' écartement des plaques. Le profil complémentaire des biseaux de la tige centrale et de ceux des plaques d' écartement assure l' écartement parallèle des plaques d' écartements , les pentes des biseaux de la tige centrale et des plaques d' écartement s' annulant une fois ceux-ci placés les uns en contact avec les autres. L' écartement parallèle obtenu de cette manière s'est révélé particulièrement efficace pour effectuer des travaux de redressage de carrosserie tels que l'élimination des plis sur des longerons. The sliding of the central rod between the two spacer plates makes it possible to obtain a spacing of the said plates due to the relative sliding of the bevels of the central rod and those of the spacer plates. Initially, the contact area between the bevels of the central rod and those of the spacer plates is maximum, whereas it is reduced during the sliding of the central rod, which causes the spacing of the plates. The complementary profile of the bevels of the central rod and those of the spacer plates ensures the parallel spacing of the plates. spacing, the slopes of the central rod bevels and spacer plates being canceled once they are in contact with one another. The parallel spacing obtained in this manner has been found to be particularly effective for body straightening work such as wrinkle removal on spars.
Il a par ailleurs pu être observé que pour obtenir une bonne répartition des forces sur toute la longueur des plaques d' écartement , la partie biseautée des plaques doit avantageusement occuper une partie importante de la surface desdites plaques car lors de l' écartement, seules les parties biseautées des plaques restent en contact avec les biseaux de la tige centrale qui transmet la force d' écartement . La pente maximale du biseau usiné sur chaque plaque d' écartement est par ailleurs limitée par l'épaisseur des plaques d' écartement . Selon un mode de réalisation avantageux, les plaques d' écartement de l'écarteur selon l'invention comprennent au moins deux biseaux. A épaisseur de plaque égale, en multipliant le nombre de biseaux, il est possible d'augmenter la pente de ceux-ci car leur longueur est réduite par rapport à la longueur d'un unique biseau. Avec l'augmentation de la pente des biseaux, il peut être observé que pour obtenir un écartement donné des plaques, un coulissement de la tige centrale sur une longueur moindre est nécessaire. Il a de plus pu être observé qu'une plus faible longueur de coulissement de la tige centrale est associée à une meilleure répartition des forces sur l'ensemble de la surface des plaques en cours d' écartement et par conséquent à une stabilité accrue et un parallélisme optimal de l'écarteur selon l'invention. En particulier, il a pu être déterminé qu'un nombre de biseaux égal à deux offrait des performances optimales pour l'écarteur selon l'invention tout en permettant une fabrication aisée et un coût de fabrication raisonnable pour l'écarteur selon 1 ' invention . It has moreover been observed that in order to obtain a good distribution of forces over the entire length of the spacer plates, the bevelled part of the plates must advantageously occupy a large part of the surface of said plates because during the separation, only the Beveled parts of the plates remain in contact with the bevels of the central rod which transmits the spreading force. The maximum slope of the bevel machined on each spacer plate is further limited by the thickness of the spacer plates. According to an advantageous embodiment, the spacer plates of the spacer according to the invention comprise at least two bevels. With equal plate thickness, by multiplying the number of bevels, it is possible to increase the slope thereof because their length is reduced compared to the length of a single bevel. With the increase of the slope of the bevels, it can be observed that to obtain a given spacing of the plates, a sliding of the central rod over a shorter length is necessary. It has furthermore been observed that a shorter sliding length of the central rod is associated with a better distribution of forces over the entire surface of the plates being spaced and consequently with increased stability and parallelism optimum of the spacer according to the invention. In particular, it could be determined that a number of bevels equal to two offered optimal performance for the spacer according to the invention while allowing easy manufacture and reasonable manufacturing cost for the spacer according to the invention.
Selon un mode de réalisation avantageux, les moyens d' actionnement en translation de la tige centrale comprennent un système de vérin hydraulique. D'autres moyens d' actionnement peuvent également être envisagés, tels qu'un système de vérin pneumatique ou encore tels qu'un filetage sur la tige centrale qui est alors actionnée en translation par la rotation d'une pièce taraudée entourant ladite tige centrale. According to an advantageous embodiment, the means for actuating the central rod in translation comprise a hydraulic jack system. Other actuation means may also be envisaged, such as a pneumatic jack system or else such as a thread on the central rod which is then actuated in translation by the rotation of a threaded piece surrounding said central rod.
Brève description des figures Brief description of the figures
Ces aspects ainsi que d'autres aspects de l'invention seront clarifiés dans la description détaillée de modes de réalisation particuliers de l'invention, référence étant faite aux dessins des figures, dans lesquelles : La Fig. 1 est une vue de l'écarteur selon l'invention; These and other aspects of the invention will be clarified in the detailed description of particular embodiments of the invention, with reference to the drawings of the figures, in which: FIG. 1 is a view of the spacer according to the invention;
La Fig. 2 est une première vue en coupe de l'écarteur Fig. 2 is a first sectional view of the retractor
selon l'invention ;  according to the invention;
La Fig. 3 est une seconde vue en coupe de l'écarteur  Fig. 3 is a second sectional view of the retractor
selon l'invention ;  according to the invention;
Les figures ne sont pas dessinées à l'échelle. The figures are not drawn to scale.
Généralement, des éléments semblables sont dénotés par des références semblables dans les figures. Description détaillée de modes de réalisation particuliersGenerally, similar elements are denoted by similar references in the figures. Detailed description of particular embodiments
La Fig. 1 représente donc un mode de réalisation de l'écarteur selon l'invention pouvant être utilisé par exemple pour le redressage du longeron d'un véhicule selon un axe d' écartement 10. L'écarteur comprend un support 1 et deux plaques d' écartement 2. Le support 1 comprend une tête creuse 7 comprenant des ouvertures latérales 9, lesdites plaques d' écartement 2 étant insérées dans lesdites ouvertures latérales 9. Le support 1 comprend également un cylindre 11 dans lequel se trouvent la tige centrale et les moyens d' actionnement en translation de celle-ci. Les plaques d' écartement 2 comprennent des couches amovibles 12 attachées à l'aide de moyens de fixation 13. De cette manière, l'espacement initial entre les plaques d' écartement peut être ajusté en fonction des dimensions du longeron à redresser. L'écarteur comprend de plus une ouverture frontale 9 permettant le passage de la tige centrale. L'écarteur comprend en outre des saillies 8 autour desdites ouvertures latérales 9 qui jouent le rôle de moyens d'immobilisation des plaques d' écartement 2 dans des plans perpendiculaires audit axe d' écartement 10. Les plaques d' écartement doivent en effet seulement se pouvoir se déplacer dans la direction de l'axe d' écartement 10 et ne pas être mobiles dans les autres directions de l'espace. Fig. 1 therefore represents an embodiment of the spacer according to the invention can be used for example for straightening the spar of a vehicle along a spacing axis 10. The spacer comprises a support 1 and two spacer plates 2. The support 1 comprises a hollow head 7 comprising lateral openings 9, said spacer plates 2 being inserted into said lateral openings 9. The support 1 also comprises a cylinder 11 in which are located the central rod and the means of translation actuation thereof. The spacer plates 2 comprise removable layers 12 attached by means of fastening means 13. In this way, the initial spacing between the spacer plates can be adjusted according to the dimensions of the spar to be straightened. The spacer further comprises a front opening 9 allowing the passage of the central rod. The spacer further comprises protrusions 8 around said lateral openings 9 which act as immobilizing means for the spacer plates 2 in planes perpendicular to said spacing axis 10. The spacer plates must in fact only be to be able to move in the direction of the spreading axis 10 and not to be movable in the other directions of the space.
La Fig. 2 représente une première vue en coupe de l'écarteur selon l'invention. Sur cette vue, sont visibles les biseaux 5 de la tige centrale 4, de même que les passages 6 usinés dans le support 1 qui sont traversés par des ressorts reliant les deux plaques d' écartement 2. Ces ressorts jouent donc le rôle de moyens de rappel sur les plaques d' écartement pour qu'elles restent solidaires du support . Fig. 2 represents a first sectional view of the spacer according to the invention. In this view, are visible the bevels 5 of the central rod 4, as well as the passages 6 machined in the support 1 which are traversed by springs connecting the two spacer plates 2. These springs thus play the role of means of reminder about spacer plates to remain secured to the support.
La Fig. 3 représente une autre vue en coupe de l'écarteur selon l'invention. Sur cette vue, on peut constater que l'écarteur est en position initiale, c'est-à- dire avant écartement. Les biseaux 5 de la tige centrale 4 et les biseaux 3 des plaques d' écartement 2 sont en effet entièrement en contact les uns avec les autres. L' écartement des plaques 2 se produira lors du coulissement de la tige centrale 4 vers l'ouverture frontale 9 dans le support 1. Au fur et à mesure du coulissement de la tige centrale 4 vers l'avant, les plaques 2 s'écarteront tandis que l'aire de contact entre les biseaux 5 de la tige centrale 4 et les biseaux 3 des plaques d' écartement 2 diminuera. Sur cette Fig. 3 apparaissent également clairement les passages 6 destinés à recevoir les ressorts reliant entre elles les plaques d' écartement en vue d'exercer une force de rappel sur ces dernières. Fig. 3 shows another sectional view of the spacer according to the invention. In this view, it can be seen that the spacer is in the initial position, that is to say before separation. The bevels 5 of the central rod 4 and the bevels 3 of the spacer plates 2 are indeed in full contact with each other. The spacing of the plates 2 will occur during the sliding of the central rod 4 towards the front opening 9 in the support 1. As sliding of the central rod 4 towards the front, the plates 2 will deviate while the contact area between the bevels 5 of the central rod 4 and the bevels 3 of the spacer plates 2 will decrease. In this FIG. 3 are also clearly visible the passages 6 for receiving the springs interconnecting the spacer plates in order to exert a restoring force on them.
Il apparaîtra évident pour l'homme du métier que la présente invention n'est pas limités aux exemples illustrés et décrits ci-dessus. L'invention comprend chacune des caractéristiques nouvelles ainsi que leur combinaison. La présence de numéros de référence ne peut être considérée comme limitative. L'usage du terme « comprend » ne peut en aucune façon exclure la présence d' autres éléments autres que ceux mentionnés. L'usage de l'article défini « un » pour introduire un élément n'exclut pas la présence d'une pluralité de ces éléments. La présente invention a été décrite en relation avec des modes de réalisations spécifiques, qui ont une valeur purement illustrative et ne doivent pas être considérés comme limitatifs. It will be apparent to those skilled in the art that the present invention is not limited to the examples illustrated and described above. The invention comprises each of the novel features as well as their combination. The presence of reference numbers can not be considered as limiting. The use of the term "includes" in no way excludes the presence of other elements other than those mentioned. The use of the definite article "a" to introduce an element does not exclude the presence of a plurality of these elements. The present invention has been described in relation to specific embodiments, which have a purely illustrative value and should not be considered as limiting.

Claims

REVENDICATIONS
1. Ecarteur mécanique selon un axe d' écartement (10), caractérisé en ce qu'il comprend un support (1) et deux plaques d' écartement (2), chaque plaque d' écartement (2) comprenant au moins un biseau (3), et en ce qu'il comprend également une tige centrale (4) apte à coulisser dans ledit support (1) entre les deux plaques d' écartementMechanical spreader according to a spacing axis (10), characterized in that it comprises a support (1) and two spacer plates (2), each spacer plate (2) comprising at least one bevel ( 3), and in that it also comprises a central rod (4) slidable in said support (1) between the two spacer plates
(2) , ladite tige centrale (4) comprenant une pluralité de biseaux (5) ayant un profil complémentaire aux biseaux (3) desdites plaques d' écartement (2), les biseaux (5) de ladite tige centrale (4) étant en contact avec les biseaux(2), said central rod (4) comprising a plurality of bevels (5) having a profile complementary to the bevels (3) of said spacer plates (2), the bevels (5) of said central rod (4) being in contact with the bevels
(3) desdites plaques d' écartement (2), ledit écarteur comprenant également des moyens de rappel aptes à exercer une force de rappel sur les plaques d' écartement (2), des moyens d' actionnement en translation de la tige centrale(3) said spacer plates (2), said spacer also comprising biasing means capable of exerting a restoring force on the spacer plates (2), means for actuating the central rod in translation
(4) et des moyens d'immobilisation des plaques d' écartement (2) dans des plans perpendiculaires audit axe d' écartement . (4) and means for immobilizing the spacer plates (2) in planes perpendicular to said axis of separation.
2. Ecarteur selon la revendication 1, caractérisé en ce que chaque plaque d' écartement (2) comprend au moins deux biseaux (3) . 2. Spreader according to claim 1, characterized in that each spacer plate (2) comprises at least two bevels (3).
3. Ecarteur selon l'une des revendications 3. Spreader according to one of the claims
précédentes, caractérisé en ce que lesdits moyens de rappel comprennent des ressorts reliant les deux plaques preceding, characterized in that said biasing means comprise springs connecting the two plates
d' écartement (2), lesdits ressorts traversant des passages (6) usinés dans ledit support (1) . spacer (2), said springs passing through passages (6) machined in said support (1).
4. Ecarteur selon l'une des revendications 4. Spreader according to one of the claims
précédentes, caractérisé en ce que ledit support comprend une tête creuse (7) comprenant des ouvertures latérales (9), lesdites plaques d' écartement (2) étant insérées dans lesdites ouvertures latérales (9). previous, characterized in that said support comprises a hollow head (7) comprising lateral openings (9), said spacer plates (2) being inserted into said lateral openings (9).
5. Ecarteur selon la revendication 4, caractérisé en ce que lesdits moyens d' immobilisation des plaques 5. Spreader according to claim 4, characterized in that said means for immobilizing the plates
d' écartement comprennent des saillies (8) autour desdites ouvertures latérales (9). spacers comprise protrusions (8) around said lateral openings (9).
6. Ecarteur selon l'une des revendications 4 et 5, caractérisé en ce que la tête creuse (7) comprend une ouverture frontale (9) permettant le passage de ladite tige centrale ( 4 ) . 6. Spreader according to one of claims 4 and 5, characterized in that the hollow head (7) comprises a front opening (9) allowing the passage of said central rod (4).
7. Ecarteur selon l'une des revendications 7. Spreader according to one of the claims
précédentes caractérisé en ce que les moyens d' actionnement en translation de la tige centrale (4) comprennent un système de vérin hydraulique. characterized in that the means for actuating the central rod (4) in translation comprise a hydraulic cylinder system.
EP16819530.3A 2015-12-22 2016-12-20 Mechanical spreading apparatus Active EP3383562B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP15201996.4A EP3184183A1 (en) 2015-12-22 2015-12-22 Mechanical spreading apparatus
PCT/EP2016/081842 WO2017108739A1 (en) 2015-12-22 2016-12-20 Mechanical spacer

Publications (2)

Publication Number Publication Date
EP3383562A1 true EP3383562A1 (en) 2018-10-10
EP3383562B1 EP3383562B1 (en) 2019-09-11

Family

ID=55024899

Family Applications (2)

Application Number Title Priority Date Filing Date
EP15201996.4A Withdrawn EP3184183A1 (en) 2015-12-22 2015-12-22 Mechanical spreading apparatus
EP16819530.3A Active EP3383562B1 (en) 2015-12-22 2016-12-20 Mechanical spreading apparatus

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP15201996.4A Withdrawn EP3184183A1 (en) 2015-12-22 2015-12-22 Mechanical spreading apparatus

Country Status (4)

Country Link
US (1) US10758961B2 (en)
EP (2) EP3184183A1 (en)
CN (1) CN108472704B (en)
WO (1) WO2017108739A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWM595548U (en) * 2020-01-16 2020-05-21 詠基工業股份有限公司 Pipe straightening structure

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Publication number Priority date Publication date Assignee Title
US2447401A (en) * 1945-03-02 1948-08-17 Porter Inc H K Spreading tool for reshaping deformed automobile bodies
US2606469A (en) * 1949-12-22 1952-08-12 Gottlieb J Morgenthaler Automobile body repair jack
US2687763A (en) * 1951-05-03 1954-08-31 Bernard C Perkins Insertable and removable shape restoring press
US2919741A (en) * 1955-09-22 1960-01-05 Blaw Knox Co Cold pipe expanding apparatus
US3635440A (en) * 1970-07-20 1972-01-18 Brammall Inc Force-exerting apparatus
US4308736A (en) * 1979-01-05 1982-01-05 J & S Hydraulics, Inc. Tube expander
JP2817620B2 (en) * 1994-04-22 1998-10-30 住友金属工業株式会社 Mechanical expander head
FI6367U1 (en) * 2004-06-11 2004-08-27 Norcar Bsb Ab Oy Tana
DE102005010494A1 (en) * 2005-03-08 2006-09-14 Rothenberger Ag Expansion device for hollow bodies
CN2900003Y (en) * 2006-04-19 2007-05-16 尚建国 Hand operated rotary pressure type steel pipe straightener
JP5019791B2 (en) * 2006-06-05 2012-09-05 昭和電工株式会社 Pipe expansion processing equipment
CN102275154B (en) 2010-06-11 2014-06-18 成都理工大学 Novel hydraulic spreader-shearer
PT2420333E (en) * 2010-08-16 2015-03-02 Uponor Innovation Ab Tool and method for expanding a pipe end
CN202377316U (en) * 2011-12-01 2012-08-15 中国重型机械研究院有限公司 Bar straightening machine pressing mechanism
US8511133B1 (en) * 2012-11-27 2013-08-20 Jun Fan Chen Expander for tubular elements
CN204448905U (en) * 2015-01-30 2015-07-08 隆英(金坛)特钢科技有限公司 A kind of straightener roller box list roller wedge adjusting equipment

Also Published As

Publication number Publication date
WO2017108739A1 (en) 2017-06-29
CN108472704B (en) 2020-05-15
EP3383562B1 (en) 2019-09-11
EP3184183A1 (en) 2017-06-28
CN108472704A (en) 2018-08-31
US10758961B2 (en) 2020-09-01
US20180361449A1 (en) 2018-12-20

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