EP3147076B1 - Appareil de tension destine a serrer un bloc de fixation sur un objet tubulaire et systeme correspondant - Google Patents

Appareil de tension destine a serrer un bloc de fixation sur un objet tubulaire et systeme correspondant Download PDF

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Publication number
EP3147076B1
EP3147076B1 EP16181750.7A EP16181750A EP3147076B1 EP 3147076 B1 EP3147076 B1 EP 3147076B1 EP 16181750 A EP16181750 A EP 16181750A EP 3147076 B1 EP3147076 B1 EP 3147076B1
Authority
EP
European Patent Office
Prior art keywords
clamping
fixing block
clamping device
tool
arc
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.)
Active
Application number
EP16181750.7A
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German (de)
English (en)
Other versions
EP3147076A1 (fr
Inventor
Steffen Demmerle
Bernhard Sichler
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.)
Aliaxis Deutschland GmbH
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Aliaxis Deutschland GmbH
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Publication date
Application filed by Aliaxis Deutschland GmbH filed Critical Aliaxis Deutschland GmbH
Publication of EP3147076A1 publication Critical patent/EP3147076A1/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
    • B25B5/00—Clamps
    • B25B5/14—Clamps for work of special profile
    • 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
    • B25B5/00—Clamps
    • B25B5/003—Combinations of clamps
    • 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
    • B25B5/00—Clamps
    • B25B5/06—Arrangements for positively actuating jaws
    • B25B5/10—Arrangements for positively actuating jaws using screws
    • B25B5/102—Arrangements for positively actuating jaws using screws with at least one jaw sliding along a bar

Definitions

  • the invention relates to a clamping device for clamping a fixation block on a tubular object, the clamping device having a clamping arch with a radius of curvature that is variable against a bias and a tool holder for a clamping tool at opposite longitudinal ends, so that the clamping arch over its opposite longitudinal ends of the
  • the radius of curvature of the clamping arch can be adapted to a radius of curvature of a tubular object onto which the fixing block is to be clamped.
  • a tensioning device is from GB 2 144 795 A known. Similar devices also describe the US 2013/153129 A1 , the US 2015/209939 A1 , the U.S. 3,883,128 A and the DE 36 16 165 A1 .
  • Fixing blocks are known from the prior art, which are positioned on the outer circumference of a tubular object, in particular a plastic pipe, for different applications. These fixing blocks can, for example, serve as a stop as a fixed point or for positioning concrete weights to weigh the pipeline under water. In addition, the fixing blocks can be provided to simplify the handling of large-volume and heavy pipes.
  • Such fixing blocks are usually designed as flexible components with a variable radius of curvature in order to be able to achieve a radius adaptation of the fixing block to the given radius of the tubular component.
  • the fixing blocks are essentially designed as plastic components, which can be welded to plastic pipes and the like on the outer circumference with the aid of electrofusion technology.
  • a tensioning device is for example made by Plasson Ltd. sold under the name "Flex Restraint".
  • fixing blocks are used in pipe relining as fixed bearings for fixing the pipe ends and preventing the pipe from shrinking back into the drawn-in line. Since some of the drawn-in pipe ends are installed in very hard-to-reach places, an encompassing belt solution cannot be used. The fixation of the blocks must then transfer the clamping pressure to the pipe surface via a radial clamping device. It is therefore the object of the invention to propose a tensioning device of the type described at the outset which does not have the disadvantages of the devices known from the prior art and is particularly easy to use.
  • the independent claim 7 relates to a corresponding arrangement of a tensioning device, a tubular object and a fixing block.
  • the independent claim 9 relates to a corresponding method for clamping a fixing block on a tubular object.
  • the dependent claims each relate to advantageous embodiments of the invention.
  • a receptacle for a fixing block is formed in the longitudinal direction between the tool receptacles.
  • the tensioning bow can have a strip-shaped or plate-shaped element made of a flexible steel, preferably spring steel, or long fiber-reinforced material. Furthermore, the tension bow can have an infinite radius in a non-pre-tensioned position. However, in a non-pre-tensioned position, the tensioning arch can also have a radius that differs from infinitely, and consequently an initial curvature with a certain radius less than infinite.
  • an arc length to be adjustable in the longitudinal direction of the clamping arc by at least one of the tool holders for a clamping tool being displaceable in the longitudinal direction of the clamping arc.
  • the at least one displaceable tool holder can be fixable in different set positions in the longitudinal direction.
  • the tool holder can be connected to the clamping bow via a fastening means guided in an elongated hole.
  • the elongated hole can either have the clamping arch or the tool holder. Both tool holders are preferably designed to be displaceable in the longitudinal direction of the clamping arch.
  • a receptacle for a fixing block is formed in the longitudinal direction between the tool receptacles on a side of the clamping arch facing the fixing block in the operating position of the clamping device.
  • the receptacle for the fixing block can be formed by the side of the tensioning arch facing the fixing block for resting on an upper side of the fixing block and two stops for resting on opposite end faces of the fixing block, the stops extending from the side of the tensioning arch facing the fixing block and are arranged at the opposite longitudinal ends of the clamping arch.
  • the invention describes an arrangement of a tensioning device according to one of the preceding claims, a tubular object and a fixing block, the fixing block via the tensioning device and with the aid of a Clamping tool that engages the opposite tool holders, is clamped on the outer circumference of the tubular object.
  • the fixing block can be arranged with the clamping device at an open longitudinal end of the tubular object, the clamping tool being supported on an inner circumference of the tubular object.
  • the clamping tool can for example be a screw clamp or the like.
  • the method can furthermore comprise adapting the length of the clamping arch to a given diameter of the tubular object by varying the distance between the tool holders in the longitudinal direction of the clamping arch.
  • the clamping device 100 shown consists essentially of a clamping bow 110, at the opposite longitudinal ends 120 of which a tool holder 130 for a clamping tool (not shown) is arranged.
  • the tool holders 130 can be displaced in the longitudinal direction of the clamping bow 110 in order to be able to adapt the length L of the clamping bow 110 and thus the clamping device 100 to different diameters of the tubular object.
  • the tool receptacles 130 have undercut grooves 131, for example for the arrangement of the pressure plate of a screw clamp or the like, which is intended to serve as a clamping tool.
  • the tensioning device 100 is designed as an essentially elongated component, the tensioning arch 110 of which has a strip-shaped or plate-shaped element 111.
  • a fixation 114 is formed at half the length L of the tensioning device 100, with which the tensioning bow 110 can be attached to the fixing block via its side 112 facing the fixing block (not shown).
  • the clamping bow 110 or the plate-shaped element 111 has an elongated hole 114 in which a fastening means 115, for example a screw, is displaceable in the longitudinal direction of the clamping bow 110 in order to realize the length adjustment of the clamping bow 110 already described above.
  • a fastening means 115 for example a screw
  • FIGS 3-5 show an application example of a clamping device 100 according to the invention, in which three clamping tools 400 are provided in order to clamp a fixing block 200 on a tubular object 300 with the aid of the clamping device 100.
  • a further, optional clamping tool 400 is provided, which engages halfway along the clamping bow 110 in order to achieve additional contact pressure in the middle area of the fixing block 200.
  • the Figures 4 and 5 also illustrate in particular how the fixing block 200 is received in the receptacle 113 of the tensioning device 100 (see also Figure 1 ).
  • the receptacle 113 is formed by the underside 112 of the clamping bow 110 and the two stops 101, the underside 112 of the clamping bow 110 just resting on the top 201 of the fixing block 200, while the stops 101 are in contact with the opposite end faces 202 of the fixing block 200 , so that the fixing block 200 is enclosed by the tensioning device over its upper side 201 and the two end faces 202, whereby it is achieved that the fixing block 200 can be pressed onto the outer circumference 310 of the tubular element 300 with uniform pressing force over its entire contact surface 240.
  • the clamping tools 400 can be designed as screw clamps which are placed via a tube end 320 on the illustrated arrangement of the tubular object 300, the fixing block 200 and the clamping device 100.
  • the clamping tools 400 are supported on an inner circumference 330 of the tube 300, while they engage with their screw-adjustable pressure plate on the tool receptacles 130 or on the clamping bow 110.
  • the fixing block 200 has a support side 230, via which it is placed on the tubular object 300, and ribs 220 extending radially therefrom, the free ends of which form the support surface for the clamping bow 110 of the clamping device 100.
  • the clamping tools 400 are designed with a handle for manual operation. Instead of the handle, it can also be provided that the clamping tools 400 have a more compact coupling for a tool.
  • the clamping tools can have an external hexagon.
  • the Figure 6 shows a further embodiment of the tensioning device 100 according to the invention, which is shown without tensioning tools for better illustration.
  • the clamping device 100 essentially consists of a clamping bow 110, at the longitudinal ends 120 of which a tool holder 130 is arranged for a respective clamping tool.
  • a pressing device 500 is provided, which is placed centrally between the two end tool holders 130 on the clamping bow 110.
  • the pressing device 500 consists essentially of a pressing plate 510, which is placed on the tensioning arch 110 via height compensation elements 520.
  • the pressing device 500 has a further tool holder 530 for receiving a clamping tool (not shown).
  • the height compensation elements 520 serve to compensate for the curvature of the tensioning arch 110 and thus a contact force that is as uniform as possible to ensure a central area of the clamping arch 110 between the two end tool holders 130.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)

Claims (10)

  1. Dispositif de serrage (100) pour serrer un bloc de fixation (200) sur un objet tubulaire (300), dans lequel le dispositif de serrage (100) comprend un arc de serrage (110) avec un rayon de courbure variable contre une précontrainte et, à des extrémités longitudinales opposées (120), respectivement un logement d'outil (130) pour un outil de serrage (400), de sorte qu'en serrant l'arc de serrage (110) sur ses extrémités longitudinales opposées (120), le rayon de courbure de l'arc de serrage (110) peut être adapté à un rayon de courbure d'un objet tubulaire (300) sur lequel le bloc de fixation (200) doit être serré, caractérisé en ce que un logement (113) pour un bloc de fixation (200) est formé dans la direction longitudinale entre les logements d'outils (130) sur/à un côté (112) de l'arc de serrage (110) tourné vers un bloc de fixation (200) en position de fonctionnement du dispositif de serrage (100).
  2. Dispositif de serrage (100) selon la revendication 1, dans lequel l'arc de serrage (110) comprend un élément en forme de bande ou de plaque (111) en acier flexible, de préférence en acier à ressort, ou en matière plastique.
  3. Dispositif de serrage (100) selon la revendication 1 ou 2, dans lequel l'arc de serrage (110) a un rayon infini dans une position non précontrainte.
  4. Dispositif de serrage (100) selon l'une des revendications précédentes, dans lequel une longueur d'arc (L) est réglable dans la direction longitudinale de l'arc de serrage (110) par le fait qu'au moins un des logements d'outil (130) pour un outil de serrage (400) est déplaçable dans la direction longitudinale de l'arc de serrage (110).
  5. Dispositif de serrage (100) selon la revendication 4, dans lequel le au moins un logement d'outil déplaçable (130) peut être fixé dans différentes positions de réglage dans la direction longitudinale.
  6. Dispositif de serrage (100) selon la revendication 1, dans lequel le logement (113) pour un bloc de fixation (200) est formé par le côté (112) de l'arc de serrage (110) tourné vers le bloc de fixation (200) pour reposer sur un côté supérieur (201) du bloc de fixation (200) et par deux butées (101) pour s'appuyer contre des faces d'extrémité opposées (202) du bloc de fixation (200), dans lequel les butées (101) s'étendent à partir du côté (112) de l'arc de serrage (110) tourné vers le bloc de fixation (200) et sont disposées aux extrémités longitudinales opposées (120) de l'arc de serrage (110).
  7. Agencement comprenant un dispositif de serrage (100) selon l'une des revendications précédentes, un objet tubulaire (300) et un bloc de fixation (200), dans lequel le bloc de fixation (200) est serré sur la circonférence extérieure (310) de l'objet tubulaire (300) par l'intermédiaire du dispositif de serrage (100) et à l'aide d'un outil de serrage (400) qui s'engage dans les logements d'outil (130) opposés.
  8. Agencement selon la revendication 7, dans lequel le bloc de fixation (200) avec le dispositif de serrage (100) est disposé à une extrémité longitudinale ouverte (320) de l'objet tubulaire (300) et dans lequel l'outil de serrage (400) s'appuie sur une circonférence intérieure (330) de l'objet tubulaire (300).
  9. Procédé de serrage d'un bloc de fixation (200) sur un objet tubulaire (300), comprenant les étapes de :
    - fournir un objet tubulaire (300), un bloc de fixation (200) et un dispositif de serrage (100) selon l'une des revendications précédentes ;
    - placer le bloc de fixation (200) sur une circonférence extérieure (310) de l'objet tubulaire (300) et le dispositif de serrage (100) sur un côté supérieur (210) du bloc de fixation (200) opposé à la circonférence extérieure (310) de l'objet tubulaire (300) de sorte que le bloc de fixation (200) soit reçu dans un logement (113) du dispositif de serrage (100) ; et
    - serrer le dispositif de serrage (100) et le bloc de fixation (200) qui y est logé sur l'objet tubulaire (300), au moyen d'un outil de serrage (400) qui s'engage dans les logements d'outil opposés (130).
  10. Procédé selon la revendication 9, qui comprend en outre l'adaptation de la longueur (L) de l'arc de serrage (110) à un diamètre donné de l'objet tubulaire (300) en faisant varier la distance des logements d'outil (130) les uns par rapport aux autres dans la direction longitudinale de l'arc de serrage (110).
EP16181750.7A 2015-08-12 2016-07-28 Appareil de tension destine a serrer un bloc de fixation sur un objet tubulaire et systeme correspondant Active EP3147076B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015113319.9A DE102015113319B3 (de) 2015-08-12 2015-08-12 Spanngerät zum Aufspannen eines Fixierblocks auf einem rohrförmigen Gegenstand sowie eine entsprechende Anordnung

Publications (2)

Publication Number Publication Date
EP3147076A1 EP3147076A1 (fr) 2017-03-29
EP3147076B1 true EP3147076B1 (fr) 2020-09-09

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ID=56552551

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16181750.7A Active EP3147076B1 (fr) 2015-08-12 2016-07-28 Appareil de tension destine a serrer un bloc de fixation sur un objet tubulaire et systeme correspondant

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EP (1) EP3147076B1 (fr)
DE (1) DE102015113319B3 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7339039U (de) * 1973-10-31 1974-02-14 Cantus H Kraftspannhalter
US3883128A (en) * 1974-02-25 1975-05-13 Ralph J Breese Universally adjustable clamp
GB8317841D0 (en) * 1983-06-30 1983-08-03 Leverton Eng Products Ltd Pipe clamp
CH666438A5 (de) * 1985-06-06 1988-07-29 Fischer Ag Georg Spannvorrichtung.
US9272567B2 (en) * 2011-12-19 2016-03-01 Fujifilm North America Corporation Method and apparatus for transferring images onto a curved surface
US20150209939A1 (en) * 2014-01-28 2015-07-30 Ho Chi-Fu Adjustable Positioning Fixture
GB2529704B (en) * 2014-08-29 2019-05-15 First Fix Industrial Supplies Ltd A securing device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
DE102015113319B3 (de) 2016-08-18
EP3147076A1 (fr) 2017-03-29

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