EP3610988B1 - Dispositif de pression à fixation à boulon centrée - Google Patents

Dispositif de pression à fixation à boulon centrée Download PDF

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Publication number
EP3610988B1
EP3610988B1 EP18189518.6A EP18189518A EP3610988B1 EP 3610988 B1 EP3610988 B1 EP 3610988B1 EP 18189518 A EP18189518 A EP 18189518A EP 3610988 B1 EP3610988 B1 EP 3610988B1
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EP
European Patent Office
Prior art keywords
bolt
securing element
pressing device
securing
centering
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.)
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Application number
EP18189518.6A
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German (de)
English (en)
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EP3610988A1 (fr
Inventor
Ernst Heimgartner
Patrick Mainhart
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Geberit International AG
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Geberit International AG
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Priority to EP18189518.6A priority Critical patent/EP3610988B1/fr
Publication of EP3610988A1 publication Critical patent/EP3610988A1/fr
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Publication of EP3610988B1 publication Critical patent/EP3610988B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/10—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting fittings into hoses
    • 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
    • B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
    • B21D39/048—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods using presses for radially crimping tubular elements

Definitions

  • the present invention relates to a pressing device according to the preamble of claim 1.
  • Pressing devices are known from the prior art and are used, for example, in the electrical field or in pipeline construction to create press connections.
  • the individual parts of the pressing devices are often put together by means of releasable connecting means such as screws, snap rings or circlips or snap-on caps.
  • the at least one securing element has a recess, the at least one centering element being deformable, and the at least one centering element being at least partially bent into the recess when the at least one securing element is connected to the at least one bolt.
  • centering is understood here to mean correct alignment of the securing element with respect to the bolt and correct fastening of the securing element by means of the fastening element both in the axial direction and in a direction extending radially to a central axis of the bolt.
  • Correct alignment is achieved, for example, when the securing element is mounted on the bolt in a linear manner, that is to say, for example, not inclined or canted or tilted.
  • Correct fastening is analogously achieved, for example, when the fastening element, and consequently the securing element, is fastened linearly to the bolt.
  • the at least one centering element therefore enables improved assembly.
  • the bolt is therefore held in the pressing device by the securing element.
  • This is preferably a pressing device comprising a non-releasable securing element according to FIG EP 3 231 528 A1 , the content of which is hereby incorporated into this application.
  • the non-releasable securing element prevents the bolt from being removed or exchanged, as a result of which the above-mentioned disadvantages in connection with releasable connecting means are avoided.
  • a pressing device with permanently assembled individual parts is made available which can no longer be opened after the initial assembly.
  • the expression “non-releasable” is understood to mean that the securing element can only be separated with increased effort with the aid of tools that destroy or damage the securing element or the bolt.
  • the pressing device and its components can thus have the form of pressing devices known per se from the prior art. It is thus conceivable that the pressing device has the form of a press sling and the press element is designed in the form of an intermediate jaw. It is also conceivable that there are two pressing elements in the form of pressing levers and the carrier element has two carrier openings, one bolt each extending through one of the carrier openings and the bearing openings.
  • the securing element can be a securing element which is placed on a bolt end and which at least partially, preferably completely, encloses the bolt end. So it is conceivable that the securing element z. B. is cap-shaped or ring-shaped, wherein the bolt end is received in its interior. This means that the securing element can have the shape of an end cap which completely receives and encloses the bolt end, or the securing element can have the shape of an end ring which surrounds the outer circumference of the bolt end.
  • the securing element preferably has an interior space, delimited by an inner wall, for receiving the bolt end, with at least one fastening element acting on the bolt end, in particular on the lateral surface of the bolt end, being arranged in the interior space.
  • the fastening element could be a snap ring or spring ring which is placed in a groove running around the inner wall, which snap ring or spring ring engages in a groove extending circumferentially around the bolt.
  • the spring ring or snap ring can be preassembled in the securing element, i.e. placed in its groove before the end cap or end ring is attached, so that when the end cap or end ring is attached to the bolt end, this spring ring engages or snaps into the groove at the bolt end .
  • the above-mentioned fastening elements have the particular advantage that they enable a stronger connection between the securing element and the bolt and thereby provide additional securing with regard to an unintentional detachment of the securing element from the bolt.
  • the at least one centering element can have the form of a stop and, when connecting the at least one securing element to the at least one bolt, provide a stop for the at least one fastening element.
  • the at least one centering element and the at least one securing element can be designed in one piece.
  • the at least one centering element can be arranged on an inner wall of the at least one securing element, and an inner diameter of the at least one securing element in the region of the at least one centering element is smaller than a diameter of the at least one bolt.
  • this securing element is a stop on the inner wall of the securing element, the stop projecting from this inner wall into the interior of the securing element.
  • the stop is an element that protrudes or protrudes from the inner wall.
  • the inner diameter is to be understood as the clear dimension. This means that the securing element in the area of the stop preferably defines a clear dimension or an opening which is smaller than the diameter of the bolt.
  • the securing element can have a recess in the form of an undercut.
  • This undercut is preferably located in a distal area of the securing element, that is to say in that area which, in the case of a received bolt end, faces away from the bolt end.
  • the inner diameter of the securing element in the region of the stop is preferably smaller than the diameter of the bolt. If the securing element is now placed on the bolt, the deformable stop is increasingly bent or kinked in the direction of the distal end of the securing element and is increasingly received in the undercut.
  • the recess or undercut preferably has a diameter which is essentially the same size or greater than the diameter of the bolt.
  • the at least one securing element can have a groove on its inner wall which extends along a circumferential direction at least partially around the at least one securing element, and wherein the at least one fastening element is at least partially received in the groove of the at least one securing element.
  • the centering element in the form of the stop prevents the fastening element from being able to get out of the groove of the securing element when the securing element is connected to the bolt.
  • the stop forms a counter surface for the fastening element and ensures the required counterpressure against the fastening element when the securing element is snapped out onto the bolt, so that it is not pushed away but remains in its central position and thus correctly aligned and securely in the groove of the bolt can snap into place.
  • the pressing device can have a centering element according to the first aspect as described above or a centering element according to a second aspect as described below.
  • the pressing device preferably has both a centering element according to the first aspect and a centering element according to the second aspect.
  • the following explanations of the centering element relate to the centering element according to the second aspect.
  • the at least one centering element can have the shape of a hollow body and at least partially surround the at least one fastening element along its circumferential direction.
  • the fastening element is preferably completely surrounded by the centering element.
  • the at least one fastening element can be arranged at least partially, preferably completely, within this centering element.
  • the at least one centering element can have an inner diameter which is the same size or greater than an outer diameter of the fastening element. If the inner diameter of the centering element is the same or essentially the same as the outer diameter of the fastening element, the centering element and the fastening element adjoin one another, at least when the securing element and the bolt are not connected. Is the inner diameter of the Centering element larger than the outer diameter of the fastening element, there is a lateral distance between the fastening element and the centering element, at least in the disconnected state.
  • the at least one centering element can be arranged within the groove of the at least one securing element.
  • the groove is preferably a profile structure with a profile base and two profile walls adjoining it. Because the centering element at least partially surrounds the fastening element along its circumferential direction, the centering element received within the groove is consequently arranged in the area of the profile base, while the fastening element is arranged in the area of the profile opening opposite the profile base. The centering element thus aligns the fastening element within the groove of the securing element and ensures that this correct alignment is also maintained during the connection of the securing element to the bolt. Correct alignment of the securing element attached to the bolt is also guaranteed.
  • the at least one centering element and the at least one fastening element can be arranged concentrically to one another.
  • the centering element preferably has an annular or hollow cylinder-like shape, within which the preferably essentially annular fastening element in the form of the snap ring or spring ring is arranged.
  • the at least one centering element can be designed to be elastic and in particular consist of an elastomer.
  • the centering element is preferably an O-ring which is arranged around the snap ring or spring ring.
  • the at least one bolt and the at least one fastening element can each have a guide surface, and the guide surface of the at least one bolt and the guide surface of the at least one fastening element provide a guided connection of the at least one securing element to the at least one bolt at least in some areas.
  • a guide surface on the fastening element and a guide surface on the bolt produce a guided connection.
  • the guide surface of the fastening element is preferably the outer surface of the fastening element facing the bolt.
  • the guide surface of the at least one bolt is preferably inclined with respect to a central axis through the bolt, so that the at least one fastening element is moved radially outward along the inclined guide surface of the bolt while the at least one securing element is connected to the at least one bolt.
  • the at least one bolt preferably has a groove which extends at least partially around the bolt along a circumferential direction, and wherein the at least one fastening element in an end state in which the at least one securing element is connected to the at least one bolt, at least partially in the groove of the bolt is added.
  • the bolt preferably has a reduced cross section in the area of its free ends. In the disconnected state, the fastening element in turn preferably has an inner diameter which is smaller than the diameter of the bolt.
  • the fastening element is pressed against the O-ring, the O-ring being compressed due to its elastic design. If the securing element is now pushed further along the bolt, the fastening element snaps into the groove in the bolt. The securing element is then fixed on the bolt.
  • the at least one securing element can consist of a material comprising steel and in particular a compressive strength of about 500 to 2000 N / mm 2 , preferably of about 800 to 1600 N / mm 2 in the tempered state and / or an elongation at break of about 2 to 20%, preferably from about 5 to 15%.
  • the pressing device 1 comprises two pressing levers 5, 5 ', two pressing jaws 4, 4' and a carrier element 2.
  • the carrier element 2 is here essentially T-shaped and has two carrier openings 3, 3 '.
  • the two pressing elements in the form of pressing levers 5, 5 ' are designed identically and each have a bearing opening 6, 6', the pressing levers 5, 5 'being pivotably mounted on the carrier element 2 via a pivot axis A1, A2.
  • One press lever 5 can be pivoted about the first pivot axis A1 and the other press lever 5 ′ can be pivoted about the second pivot axis A2 from a starting position into a pressing position.
  • a bolt 8, 8 'providing the bearing and the pivot axis A1, A2 each extends through one of the carrier openings 3, 3' and one of the bearing openings 6, 6 '.
  • the end of the bolt 8, 8 ' is secured with a non-releasable securing element 11, 11' with respect to an axial displacement in the bearing opening 6, 6 'and in the carrier opening 3, 3'.
  • the pressing jaws 4, 4 'facing one another are pivoted against one another to the extent that that they only have a small distance from one another and at the end of the pressing process, viewed along the pivot axes A1, A2, together form an essentially closed circle.
  • the press levers 5, 5 'each have a press jaw receptacle 22, 22' with a receiving surface into which the press jaws 4, 4 'are inserted.
  • the pressing contours 23, 23 'are essentially concave so that a part to be pressed, such as a fitting to be pressed, can be pressed through the pressing contour 23, 23'.
  • the bolt 8, 8 'thus serves to pivot the press levers 5, 5' on the carrier element and at the same time provides the pivot axes A1, A2 about which the press levers 5, 5 'are pivoted.
  • the two bolts 8, 8 ' are each secured at the end with a non-releasable securing element 11, 11' in the bearing openings 6, 6 'and the carrier openings 3, 3'.
  • the bolt 8 is cylindrical and has a constant diameter DB and a full cross section over a large part of its length.
  • the surfaces of the press lever 5 are each flush with the surface of the first and second carrier element 2, 2 'and the inner surfaces of the carrier openings 3 or bearing openings 6 and the outer surface 10 of the bolt 8 are in surface contact with one another.
  • this embodiment is a securing element 11, 11 'in the form of an end cap, which is placed on the bolt end 9, 9'.
  • the securing element 11, 11 ' comprises an inner wall 14, 14' which defines an interior space 16, 16 'for receiving the bolt end 9, 9'.
  • the distal end of the securing element, or in other words the bottom surface 24, 24 'of the cap-shaped securing element, is planar and extends perpendicularly with respect to the pivot axes A1, A2 or parallel to a plane of the carrier element 2.
  • the bolt end 9, 9 ' is received in the interior 16, 16' of the securing element 11, 11 ', the inner wall 14, 14' completely surrounding these parts of the bolt 8, 8 'protruding from the carrier element 2.
  • the bolt end 9, 9 ' is completely enclosed by the cap-shaped securing element 11, 11'.
  • the securing element 11, 11 ' has an outer wall 25, 25' on the outside, which is designed in the manner of a truncated cone around said pivot axis A1, A2.
  • the outer wall is designed with a rounding which has the shape of an arc in cross section.
  • a fastening element 18, 18 'in the form of a snap ring or spring ring which acts on the bolt end 9, 9', in particular on the jacket surface 10, 10 'of the bolt end.
  • the snap ring or spring ring 18, 18 ' is placed in a groove 19, 19' running around the inner wall 14, 14 'of the securing element and engages in a recess or groove extending circumferentially around the bolt 8, 8' 21, 21 'of the bolt 8, 8'.
  • the snap ring or spring ring can be essentially semicircular and have an interruption (see e.g. Figure 1 ).
  • fastening elements 18, 18 ' serve to additionally secure the securing elements 11, 11', 12, 12 'to the bolts 8, 8' and are each preassembled in the securing elements 11, 11 ', 12', 12 '.
  • the pressing devices 1, 1 are provided 'further via centering elements 27, 27', 28, 28 ', which center the securing elements 11, 11', 12, 12 'and / or the fastening elements 18, 18' on the bolts 8, 8 '.
  • centering is a correct alignment of the securing elements 11, 11 ', 12, 12' in relation to the bolts 8, 8 'as well as a correct fastening of the securing elements 11, 11', 12, 12 'by means of the fastening elements 18, 18 'to be understood both in the axial direction and in a radial direction with respect to the central axis MB of the bolts 8, 8'.
  • the pressing device 1 has two centering elements 27, 27 '; 28, 28 ', namely a first centering element 27, 27' in the form of a stop and a second centering element 28, 28 'in the form of a hollow body.
  • the pressing device 1 only has the first centering element 27, 27 'or only the second centering element 28, 28'.
  • the centering element 27, 27 'in the form of the stop serves to provide a stop for the fastening element 18, 18' when the securing element 11, 11 'is connected to the bolt 8, 8'.
  • the stop 27, 27 ' is formed on the inner wall 14, 14' of the securing element 11, 11 'and, starting from this inner wall 14, 14', protrudes into the interior of the securing element 11, 11 '.
  • the stop 27, 27 'and the securing element 11, 11' are formed in one piece. This means that the stop 27, 27 'is an integral part of the securing element 11, 11', more precisely the inner wall 14, 14 'of the securing element 11, 11'.
  • the inner diameter is to be understood as the clear dimension.
  • the securing element 11, 11 ' has a recess 29, 29' in the form of an undercut.
  • the undercut 29, 29 ' is, starting from the bottom surface 24, 24' of the securing element 11, 11 'in the direction of an insertion opening 13, 13' of the securing element 11, 11 ', in front of the stop 27, 27', which in turn is located located in front of the groove 19, 19 '.
  • the stop 27, 27 ' is formed between the undercut 29, 29' and the groove 19, 19 '.
  • the inner diameter DSIA of the securing element 11, 11 'in the area of the stop 27, 27' is smaller than the inner diameter DSIH of the securing element 11, 11 'in the area of the undercut 29, 29' as well as smaller than the inner diameter DSIN of the securing element 11 , 11 'in the area of the groove 19, 19'.
  • the stop 27, 27 ' prevents that the fastening element 18, 18 'when connecting the securing element 11, 11' to the bolt 8, 8 'can get out of the groove 19, 19' of the securing element 11, 11 '.
  • the stop 27, 27 ' forms a counter surface for the fastening element 18, 18' and, when the securing element 11, 11 'snaps out onto the bolt 8, 8', ensures the required counter-pressure against the fastening element 18, 18 'so that the latter is not pushed away but remains in its central position and can thus safely snap into the groove 21, 21 'of the bolt 8, 8'.
  • the inner diameter DSIA of the securing element 11 in the region of the stop 27 is smaller than the diameter DB of the bolt 8.
  • the stop 27 is increasingly bent in the direction of the bottom surface 24 of the securing element 11 or bent over and received in the undercut 29.
  • the bolt end 9 in the interior of the securing element 11 is given a space at a point in time where the secure snapping of the fastening element 18 into the groove 21 of the bolt 8 has already taken place.
  • the free bolt end 9 directly adjoins the bottom surface 24 of the securing element 11.
  • a centering element 28, 28 'in the form of a hollow body, which extends around the fastening element along a circumferential direction of the fastening element 18, 18' can be provided .
  • the hollow body 28, 28 ' has an inner diameter DSZ which is the same size or greater than the outer diameter DBA of the fastening element 18, 18'.
  • this centering element 28, 28 ' is preferably an O-ring, that is to say an elastic element with an essentially circular cross section.
  • the O-ring 28, 28 ' is also arranged in the groove 19, 19' of the securing element 11, 11 ', the O-ring 28, 28' and the fastening element 18, 18 'being concentric to one another.
  • the O-ring 28, 28 'thus aligns the fastening element 18, 18' within the groove 19, 19 'of the securing element 11, 11' and, as will be explained below, ensures that this correct alignment is also carried out during the connection of the securing element 11, 11 'with the bolt 8, 8' is retained.
  • a correct one Alignment of the securing element 11, 11 'attached to the bolt 8, 8' is thereby also ensured.
  • the O-ring 28, 28 'thus centers the fastening element 18, 18'.
  • the bolt 8 has inclined guide surfaces 30 which interact with the fastening element 18 and thereby allow a guided connection between the securing element 11 and the bolt 8, see FIG Figures 6a to 6c .
  • these guide surfaces 30 run against one another in the direction of the central axis MB of the bolt 8.
  • the bolt 8 thus has a reduced cross section in the area of its free ends 9.
  • the pressing device 1 has only one centering element 28 in the form of the hollow body It is conceivable to provide the securing element 1 only with the groove 19 but, for example, without a stop 27 and in particular without an undercut 29.
  • the Figures 7 to 9 each show a further preferred embodiment of a pressing device 1 'with a bolt fixation according to the invention.
  • the same elements are provided with the same reference symbols.
  • Unlike the pressing device 1 in the Figures 1-6c extends in the pressing device 1 'according to the Figures 7 to 9 one bolt 8, 8 'each through the support openings 3, 3' and bearing openings 6, 6 ', which bolt is secured at the end with an annular, non-releasable securing element 12, 12' with respect to axial displacement.
  • this securing element 12, 12 'in the form of an end ring has an inner wall 15, 15' which has an interior space 17, 17 'for receiving the bolt end 9, 9'.
  • a locking part 18, 18 'in the form of a spring ring or snap ring which acts on the bolt end, in particular on the jacket surface 10, 10' of the bolt end, is arranged in the interior 17, 17 ', which is inserted into a circumferential around the bolt 8, 8'. around extending recess or groove 21, 21 'engages or. snaps into this.
  • the spring ring or snap ring is placed in a groove 20, 20 'of the end ring 12, 12' running around the inner wall 15, 15 '.
  • the end rings also have centering elements in the form of the stop and in the form of the hollow body as described above.
  • the outer wall 26, 26 ' cannot be grasped or cannot effectively be grasped by a pliers-like tool
  • the outer wall '26, 26' of the end ring is also designed here like a truncated cone around the pivot axis A1, A2 and has a rounding which, in cross section, is multi-part Bow trained.
  • the axial displacement of the bolt 8, 8' can take place by means of an end ring 12, 12 'attached to the bolt on both sides, with the bolt passing through the carrier opening 3 of a first carrier element 2, through the bearing opening 6 of the press lever 5 and through the carrier opening of a second carrier element 2 'and is secured at its distal pin end 9 as well as at its proximal pin end 9' with a locking ring 12, 12 '.
  • the bolt 8 is also cylindrical here and has a constant diameter DB and a full cross section over a large part of its length.
  • the end ring 12, 12 ' in contrast to the end cap 11, 11', does not have a bottom surface which covers the surface of the bolt end 9, 9 '.
  • the end cap 11, 11 ' has a bottom surface 24, 24' and the parts of the bolt 8, 8 'protruding from the carrier element 2 are completely surrounded by the inner wall 14, 14'
  • the end ring 12, 12 ' encloses this protruding parts at least partially, namely completely around the jacket surface 10, 10 'of the bolt ends 9, 9', with the surfaces of the bolt ends 9, 9 'from the end ring 12, 12' remaining uncovered and free-standing.
  • the above-mentioned aspects of the pressing device can also be used with a pressing device in the form of a press sling, respectively. realize an intermediate jaw.

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Claims (14)

  1. Dispositif de pressage (1, 1') comprenant :
    - au moins un élément porteur (2) avec au moins une ouverture porteuse (3, 3');
    - au moins un élément presseur (5, 5') avec au moins une ouverture d'appui (6, 6') pour appliquer une force de pressage à une pièce de pressage, où l'au moins un élément presseur (5, 5') est monté sur au moins un élément de support (2) de manière à pouvoir pivoter autour d'au moins un axe de pivotement (A1, A2);
    - au moins un boulon (8, 8'), qui traverse l'au moins une ouverture porteuse (3, 3') et l'au moins une ouverture d'appui (6, 6') ;
    - au moins un élément de blocage (11, 11' ; 12, 12') qui peut être relié à l'au moins un boulon (8, 8') le long d'une direction axiale (A), où l'au moins un boulon (8, 8') est fixé par rapport à un déplacement le long de la direction axiale (A) par l'au moins un élément de blocage (11, 11'; 12, 12') dans l'au moins une ouverture d'appui (6, 6') et l'au moins une ouverture porteuse (3, 3') ; et
    - au moins un élément de fixation (18, 18'), lequel fixe l'au moins un élément de blocage (11, 11' ; 12, 12') à l'au moins un boulon (8, 8'),
    où dispositif de pressage (1, 1') comprend en outre au moins un élément de centrage (27, 27' ; 28, 28'), l'au moins un élément de centrage (27, 27' ; 28, 28') centrant l'au moins un élément de blocage (11, 11' ; 12, 12') et / ou l'au moins un élément de fixation (18, 18') sur l'au moins un boulon (8, 8'), caractérisé en ce que l'au moins un élément de blocage (11, 11' ; 12, 12') présente un évidement (29, 29'), dans lequel l'au moins un élément de centrage (27, 27') est déformable, et dans lequel l'au moins un élément de centrage (27, 27'), lors du raccord de l'au moins un élément de blocage (11, 11'; 12, 12') à l'au moins un boulon (8, 8'), est au moins partiellement incurvé dans l'évidement (29, 29').
  2. Dispositif de pressage (1, 1') selon la revendication 1, dans lequel l'au moins un élément de centrage (27, 27') a la forme d'une butée et, lors du raccordement de l'au moins un élément de blocage (11, 11' ; 12, 12') avec l'au moins un boulon (8, 8'), fournit une butée pour l'au moins un élément de fixation (18, 18').
  3. Dispositif de pressage (1, 1') selon la revendication 1 ou 2, dans lequel l'au moins un élément de centrage (27, 27') et l'au moins un élément de blocage (11, 11' ; 12, 12') sont formés en un pièce.
  4. Dispositif de pressage (1, 1') selon l'une des revendications précédentes, dans lequel l'au moins un élément de centrage (27, 27') est disposé sur une paroi intérieure (14, 14' ; 15, 15') de l'au moins un élément de blocage (11, 11' ; 12, 12'), et dans lequel un diamètre interne (DSI) de l'au moins un élément de blocage (11, 11'; 12, 12') dans la région de l'au moins un élément de centrage (27, 27') est plus petit que le diamètre (DB) de l'au moins un boulon (8, 8').
  5. Dispositif de pressage (1, 1') selon l'une des revendications précédentes, dans lequel l'au moins un élément de blocage (11, 11' ; 12, 12') présente une rainure (19, 19') sur sa paroi intérieure (14, 14'; 15, 15'); qui se prolonge le long d'une direction circonférentielle au moins partiellement autour de l'au moins un élément de blocage (11, 11'; 12, 12'), et dans lequel l'au moins un élément de fixation (18, 18') est au moins partiellement reçu dans la rainure (19, 19'; 20, 20') de l'au moins un élément de blocage (11, 11'; 12, 12').
  6. Dispositif de pressage (1, 1') selon l'une des revendications précédentes, dans lequel l'au moins un élément de centrage (28, 28') a la forme d'un corps creux et entoure au moins partiellement l'au moins un élément de fixation (18, 18') le long de sa direction circonférentielle.
  7. Dispositif de pressage (1, 1') selon la revendication 6, dans lequel l'au moins un élément de centrage (28, 28') a un diamètre intérieur (DZI) qui est égal ou supérieur à un diamètre extérieur (DBA) de l'élément de fixation (18, 18').
  8. Dispositif de pressage (1, 1') selon la revendication 6 ou 7, dans lequel l'au moins un élément de centrage (28, 28') est disposé à l'intérieur de la rainure (19, 19' ; 20, 20') de l'au moins un élément de blocage (11, 11'; 12, 12').
  9. Dispositif de pressage (1, 1') selon l'une des revendications précédentes 6 à 8, dans lequel l'au moins un élément de centrage (28, 28') et l'au moins un élément de fixation (18, 18') sont disposés concentriquement à par rapport à l'un autre.
  10. Dispositif de pressage (1, 1') selon l'une des revendications précédentes 6 à 9, dans lequel l'au moins un élément de centrage (28, 28') est élastique et est notamment constitué d'un élastomère.
  11. Dispositif de pressage (1, 1') selon l'une des revendications précédentes, dans lequel l'au moins un boulon (8, 8') et l'au moins un élément de fixation (18, 18') présentent chacun une surface de guidage (30, 30 '; 31, 31'), et la surface de guidage (30, 30 ') de l'au moins un boulon (8, 8') et la surface de guidage (31, 31') de l'au moins un élément de fixation (18, 18') fournissent au moins partiellement un raccordement guidé de l'au moins un élément de blocage (11, 11'; 12, 12') avec l'au moins un boulon (8, 8').
  12. Dispositif de pressage (1, 1') selon la revendication 11, dans lequel la surface de guidage (30, 30') de l'au moins un boulon (8, 8') est inclinée par rapport à un axe central (MB) traversant le boulon (8, 8'), de sorte que l'au moins un élément de fixation (18, 18') est déplacé radialement vers l'extérieur lors de la connexion de l'au moins un élément de blocage (11, 11'; 12, 12') à l'au moins un boulon (8, 8') le long de la surface de guidage inclinée (30, 30') du boulon (8, 8').
  13. Dispositif de pressage (1, 1') selon l'une des revendications précédentes, dans lequel l'au moins un boulon (8, 8') présente une rainure (21, 21') qui s'étend au moins partiellement autour du boulon (8, 8') le long d'une direction circonférentielle, et dans lequel l'au moins un élément de fixation (18, 18'), dans un état final, dans lequel l'au moins un élément de blocage (11, 11'; 12, 12') est reliée à l'au moins un boulon (8, 8'), est au moins partiellement reçu dans la rainure (21, 21 ') du boulon (8, 8').
  14. Dispositif de pressage (1, 1') selon l'une des revendications précédentes, dans lequel l'au moins un élément de blocage (11, 11' ; 12, 12') est constitué d'un matériau comprenant de l'acier et en particulier présente une résistance à la compression d'environ 500 à 2000 N / mm2, de préférence d'environ 800 à 1600 N / mm2 à l'état trempé et / ou présente un allongement à la rupture d'environ 2 à 20%, de préférence d'environ 5 à 15%.
EP18189518.6A 2018-08-17 2018-08-17 Dispositif de pression à fixation à boulon centrée Active EP3610988B1 (fr)

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EP3610988B1 true EP3610988B1 (fr) 2021-12-22

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Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
DE102022115433A1 (de) 2022-06-21 2023-12-21 Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kommanditgesellschaft Pressring, Pressschlinge und Presswerkzeug mit Verstellelement

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1092487A3 (fr) 1999-10-15 2004-08-25 Gustav Klauke GmbH Dispositif de pressage avec machoires de compression
ES2202030T3 (es) * 2000-01-07 2004-04-01 Von Arx Ag Pinza de prensado.
DE102012100357B4 (de) 2012-01-17 2014-05-22 Viega Gmbh & Co. Kg Lösbare Werkzeugbackenhälfte
EP3231528B1 (fr) 2016-04-12 2019-02-27 Geberit International AG Dispositif de pression comprenant une fixation à boulon
EP3246130B2 (fr) * 2016-05-19 2022-02-09 Geberit International AG Dispositif de presse

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