EP0444491A1 - Etau pour assemblage de jointures pour tuyaux flexibles - Google Patents

Etau pour assemblage de jointures pour tuyaux flexibles Download PDF

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Publication number
EP0444491A1
EP0444491A1 EP91102231A EP91102231A EP0444491A1 EP 0444491 A1 EP0444491 A1 EP 0444491A1 EP 91102231 A EP91102231 A EP 91102231A EP 91102231 A EP91102231 A EP 91102231A EP 0444491 A1 EP0444491 A1 EP 0444491A1
Authority
EP
European Patent Office
Prior art keywords
flange
posterior
anterior
pusher device
ring nut
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.)
Withdrawn
Application number
EP91102231A
Other languages
German (de)
English (en)
Inventor
Ciro Mastromatteo
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0444491A1 publication Critical patent/EP0444491A1/fr
Withdrawn legal-status Critical Current

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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

Definitions

  • the invention discloses the realization of a vice suited for the assembly of union terminals for flexible pipes.
  • thermo-hydraulic field special pliers are used for the assembly and the contemporary clamping of union terminals for flexible pipes by means of a bush.
  • a known and widely-used type of assembly pliers is constituted by a body supported by a base, on which a couple of jaws is mounted, between which the flexible pipe and the pipe fitting are placed.
  • the jaws of the pliers force the flexible pipe against the union terminal, thanks to the interposition of a bush which ensures the clamping.
  • One of the disadvantages of the known pliers of this type is their big dimensions, so that they can only be used in fixed installations and for the connection of flexible pipes to pipe fittings before the pipes are installed. In other words, their big dimensions and also their considerable weight make the use of these pliers impossible for the connection of pipe fittings to already installed flexible pipes.
  • said portable manual pliers present some disadvantages, the main of which is that the pressure jaws, between which the shrinking bush and the union terminal which must be inserted one into the other to connect the pipes are clamped, work as projecting parts and, consequently, during the clamping the pressure is unstable and not co-axial.
  • the present invention proposes to overcome the above-mentioned disadvantages by disclosing the vice according to the invention.
  • the main purpose of the present invention in fact, is the realization of a portable and manual vice which, besides ensuring the assembly of union terminals to flexible pipes by means of a shrinking bush, also presents pressure flanges which are completely guided during the clamping stroke, so that the elements are perfectly co-axial during the connection.
  • Another purpose of the present invention is the realization of a vice which does not easily break and which is therefore more reliable than the portable manual vices of the known type, though it is lighter and smaller.
  • the vice is characterized by an anterior pushing ring nut applied to the anterior flange, and by a posterior pushing ring nut applied in front of the cylindrical body of the pusher device.
  • Each ring nut presents a radial slit in which the union terminal with the ring nut and the already connected pipe is arranged in the anterior ring nut, and the flexible pipe is arranged in the posterior ring nut.
  • a series of couples of pushing ring nuts, each ring nut presenting radial slits of different measures, is supplied together with the vice according to the invention, so as to make it suited for the assembly of flexible pipes and union terminals with various diameters.
  • the vice according to the invention is more easy-handled, less fragile and requires little effort on the operator's part for the execution of the connections. All these factors encourage the use of the vice according to the invention for the execution of joints. Moreover, the joints are better performed.
  • the vice according to the invention is composed of a body indicated as a whole with 2, of a mobile pusher device, indicated as a whole with 3, and of a couple of anterior and posterior pushing ring nuts 4, 5 which, when the assembly of the vice is completed, are placed inside the body 2, as can be seen in Fig. 2 an 3, and as will be described hereafter.
  • the body 2 is composed of a couple of flanges co-axial with and facing one another, more precisely of an anterior flange 6 and a posterior flange 7 connected to each other by means of horizontal tie rods.
  • the anterior flange 6 presents a radial slit 9 and, similarly, the posterior flange 7 presents a radial slit 10, these flanges being aligned according to the longitudinal axis 12 of the body 2, thus permitting the housing within the body 2 of the flexible pipe of the union terminal to which it is connected.
  • the posterior flange 7 presents a tubular body 11 co-axial with the longitudinal axis of the body 2, said tubular body presenting at its top an opening coincident with the radial slit 10 of the posterior flange 7.
  • the tubular body 11 presents a thread 16 which couples with a thread 17 which is external to the external cylindrical body 18 which constitutes the pusher device 3.
  • the body 2 of the vice presents a handle 19 in the lower part of the posterior flange 7; similarly, the pusher device 3 presents maneuver handles 20 at the unthreaded end; said handles allow the pusher device to be rotaded inside the tubular body of the posterior flange 7.
  • Fig. 1 also shows that the posterior ring nut 5 is an integrant part of the vice according to the invention.
  • the posterior ring nut 5 is placed in front of the threaded cylindrical body 18 of the pusher device 3 and is supported by the horizontal tie rods 8, between which its stakes 21 are inserted in. Said stakes 21 allow the posterior ring nut 5 to move horizontally on the longitudinal axis 12 when the pusher device 3 is screwed on the tubular body 11.
  • Fig. 1 also shows another ring nut, more precisely the anterior ring nut 4 which, as can be observed in Fig.s 2 and 3, presents a U-shaped profile 22 which allows the anterior ring nut to be inserted in the radial slit 9 made in the anterior flange 6.
  • Fig.s 2 and 3 also show that the posterior pushing ring nut 5 bucks with the shrinking bush 15 which is co-axial with the flexible pipe 13 and which presents a radial notch 23 which permits the housing of the flexible pipe 13 itself.
  • the anterior ring nut 4 presents a radial notch 24 which permits the housing of the union terminal 14, already connected to another pipe 40.
  • a plurality of couples of posterior and anterior ring nuts 5, 4 is an integrant part of the vice, each couple presenting radial notches 23 and 24 with different widths and suited for flexible pipes 13, union terminals 14 and shrinking bushes 15 having different diameters.
  • the procedure for the assembly of the union terminal to the flexible pipe lies in inserting the anterior pushing ring nut 4 in the radial slit 9 of the anterior flange 6.
  • the terminal 14 is lodged and, similarly, the posterior pushing ring nut 5 is lodged in front of the pusher device 3 and supported by the horizontal tie rods on which the stakes 21 are leaned, said posterior pushing ring nut presenting a radial notch 23 too, suited to receive the flexible pipe 13 or another union profile.
  • the flexible pipe may have any length, since it is placed inside the radial slit 25 co-axially made in the pusher device.
  • the shrinking bush 15 Before placing the flexible pipe 13 in the pusher device 3 and in the notch 23 of the posterior ring nut 5, the shrinking bush 15 must previously be inserted.
  • the flexible pipe 13 When the flexible pipe 13 is placed in the co-axial slit 25 of the pusher device 3, it is fit to the union terminal 14, thus assuming the configuration indicated in Fig. 2.
  • the mobile element 26, which is applied on top of the posterior flange 7, must be previously lowered, the function of the mobile element being to close the radial slit 10 of the posterior flange 7 itself to prevent the threading 17 of the pusher device 3 from meeting a gap during the screwing of the pusher device 3 in correspondence with the radial slit 10 itself, such gap being able to cause oscillations in the screwing of the pusher device itself.
  • the pusher device 3 is screwed by rotating it by means of the maneuver handles 20.
  • the pusher device 3 co-axially pushes the posterior pushing ring nut 5, which, in turn, co-axially forces the bush 15 on to the unit terminal 14.
  • Said terminal remains still inside the radial notch 24 made in the anterior ring nut 4, since its neck 28 leans against the anterior pushing ring nut 4 itself.
  • the rotation and, consequently, the advancement of the pusher device 3 comes to a stop when the bottom of the bush 15 leans against the neck 28 of the union terminal 14. At this point the stability of the connection through the forcing of the bush 15 is realized.
  • the vice according to the invention fulfills all mentioned purposes.
  • the main purpose is fulfilled, i.e. the realization of a more reliable and less fragile vice than the portable manual vices of the known type.
  • the pusher device 3 is coupled with the vice 2 by means of threads, the advancement of the pusher device 3 itself does not require too much effort, because it is known that a considerable co-axial effort can be produced by means of threads, though applying a rather limited twisting moment. This is all to the operator's advantage, especially when he must use the vice with already installed flexible pipes and union terminals in uneasy conditions.
  • the fact that the pusher device 3 is connected with the vice 2 by means of threads makes it possible to reach more or less considerable co-axial advancements of the pusher device 3 itself depending on the required utilization of the vice, at a parity of the rotation of the pusher device 3 and opportunely varying the pitch of the threads.
EP91102231A 1990-02-27 1991-02-18 Etau pour assemblage de jointures pour tuyaux flexibles Withdrawn EP0444491A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8553490 1990-02-27
IT85534A IT1239839B (it) 1990-02-27 1990-02-27 Morsa di montaggio di terminali di raccordo per tubi flessibili

Publications (1)

Publication Number Publication Date
EP0444491A1 true EP0444491A1 (fr) 1991-09-04

Family

ID=11327658

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91102231A Withdrawn EP0444491A1 (fr) 1990-02-27 1991-02-18 Etau pour assemblage de jointures pour tuyaux flexibles

Country Status (2)

Country Link
EP (1) EP0444491A1 (fr)
IT (1) IT1239839B (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0598173A2 (fr) * 1992-11-17 1994-05-25 Thermconcept Produkte für Heizung und Sanitär Gmbh & Co. Dispositif pour la mise en place d'un raccord sur un tube
WO1995009703A1 (fr) * 1993-10-06 1995-04-13 The Deutsch Company Outil de sertissage
EP0663547A1 (fr) * 1994-01-17 1995-07-19 MANNESMANN Aktiengesellschaft Entraînement motorisé et pignon à tourillon
WO1999047311A1 (fr) * 1998-03-17 1999-09-23 Aeroquip Corporation Outil de raccordement de tuyaux
WO2022034499A1 (fr) * 2020-08-10 2022-02-17 LEHENTECH, proizvodnja in druge storitve d.o.o. Tête d'outil coulissant électrique et outil coulissant électrique

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1924225B2 (de) * 1968-05-29 1973-10-04 Superflexit Ltd., Slough, Buckinghamshire (Grossbritannien) Anschlußstuck für eine metall geflechtsarmierte Schlauchleitung und Werkzeug zur Verformung der An schlußstuck Hülse
EP0191728A1 (fr) * 1985-02-15 1986-08-20 Bernardini, Attilio Appareil pour l'insertion dans un tuyau d'une armature

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1924225B2 (de) * 1968-05-29 1973-10-04 Superflexit Ltd., Slough, Buckinghamshire (Grossbritannien) Anschlußstuck für eine metall geflechtsarmierte Schlauchleitung und Werkzeug zur Verformung der An schlußstuck Hülse
EP0191728A1 (fr) * 1985-02-15 1986-08-20 Bernardini, Attilio Appareil pour l'insertion dans un tuyau d'une armature

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0598173A2 (fr) * 1992-11-17 1994-05-25 Thermconcept Produkte für Heizung und Sanitär Gmbh & Co. Dispositif pour la mise en place d'un raccord sur un tube
EP0598173A3 (en) * 1992-11-17 1994-08-24 Thermconcept Gmbh & Co Device for fixing fittings to pipes.
WO1995009703A1 (fr) * 1993-10-06 1995-04-13 The Deutsch Company Outil de sertissage
EP0663547A1 (fr) * 1994-01-17 1995-07-19 MANNESMANN Aktiengesellschaft Entraînement motorisé et pignon à tourillon
WO1999047311A1 (fr) * 1998-03-17 1999-09-23 Aeroquip Corporation Outil de raccordement de tuyaux
WO2022034499A1 (fr) * 2020-08-10 2022-02-17 LEHENTECH, proizvodnja in druge storitve d.o.o. Tête d'outil coulissant électrique et outil coulissant électrique

Also Published As

Publication number Publication date
IT1239839B (it) 1993-11-15
IT9085534A1 (it) 1991-08-27
IT9085534A0 (it) 1990-02-27

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