EP2281661A1 - Handbetriebene Presse für Verbindungsstellen - Google Patents

Handbetriebene Presse für Verbindungsstellen Download PDF

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Publication number
EP2281661A1
EP2281661A1 EP10007899A EP10007899A EP2281661A1 EP 2281661 A1 EP2281661 A1 EP 2281661A1 EP 10007899 A EP10007899 A EP 10007899A EP 10007899 A EP10007899 A EP 10007899A EP 2281661 A1 EP2281661 A1 EP 2281661A1
Authority
EP
European Patent Office
Prior art keywords
jaw
manual press
press according
manual
tubular member
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Withdrawn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
EP10007899A
Other languages
English (en)
French (fr)
Inventor
Renzo Bortoli
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.)
Ritmo SpA
Original Assignee
Ritmo SpA
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 Ritmo SpA filed Critical Ritmo SpA
Publication of EP2281661A1 publication Critical patent/EP2281661A1/de
Withdrawn legal-status Critical Current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
    • 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
    • B25B5/068—Arrangements for positively actuating jaws with at least one jaw sliding along a bar

Definitions

  • the present invention relates to a manual press for joints.
  • the press is adapted to tighten mechanical connectors and to perform butt welds of pipes and/or connectors made of heat-sealable material.
  • New pipes are provided with adapted fittings connected by means of compression systems or by heat-sealing.
  • mechanical compression connectors are generally constituted by a main body provided with a shank to be inserted within the pipe. Once the pipe is inserted, a locking ring that abuts against an annular portion of the main body ensures both mechanical tightness and hydraulic tightness with the aid of an adapted gasket.
  • Compression of the ring is generally performed by means of specific presses, which are essentially constituted by a fixed jaw and by a movable jaw, which can slide with respect to the fixed jaw.
  • Each jaw is provided with templates adapted to accommodate the main body of the connector at one side and the ring at the other side.
  • the required tightening force has a substantial intensity.
  • the movement of the movable jaw is generally assisted by piston-type actuators which are actuated by electric-hydraulic pumps or by pedal-operated pumps.
  • the surfaces to be heat-sealed, previously flattened by means of adapted cutters are heated until they melt by contact with a thermal member and then, after the spacing of the member, are joined by pressing in order to obtain heat-sealing.
  • the surfaces to be heat-sealed are generally joined by means of presses that are substantially equivalent to the ones described above but differ from the preceding ones mainly in that the templates are replaced with adapted pipe locking devices.
  • the aim of the present invention is to solve the problems described above by providing a manual press which does not require any type of electrical and/or hydraulic connection for its operation.
  • a particular object of the invention is to provide a manual press that can be used to tighten mechanical connectors.
  • Another object of the invention is to provide a manual press that can be used to perform butt welds of pipes and/or connectors made of heat-sealing material.
  • Another object of the invention is to provide a manual press that can produce a considerable tightening force by utilizing a relatively modest muscular effort by the operator.
  • Another object of the invention is to provide a manual press that is at once lightweight and easy to handle.
  • Another object of the invention is to provide a manual press that is particularly advantageous from a strictly economic standpoint.
  • a manual press for joints comprising a main body that supports a first guide means joined to at least one first jaw that engages a first tubular member, said first jaw being aligned with a second jaw that engages a second tubular member, said second jaw being slidingly associated with said first guide means and being movable with respect to said first jaw, said manual press passing reversibly from an open condition, in which said jaws are substantially at their maximum mutual distance, to a tightening condition, in which said jaws are substantially at their minimum mutual distance, said manual press being characterized in that it comprises a manual feed device which is functionally connected to said second jaw in order to pass it from said open condition to said tightening condition.
  • a manual press particularly for joints, is generally designated by the reference numeral 1.
  • the manual press 1 has a main body 2, which is essentially constituted by a metallic frame and a grippable fixed lever 3 that protrudes from the frame.
  • a substantially disk-like abutment plate 4 is associated with the main body 2 and supports a first guide means 30, which is joined to a first jaw 20 to be engaged with a first tubular member.
  • the first guide means 30 is preferably constituted by three longitudinal bars 31a, 31b and 31c which are mutually parallel.
  • the ends of the longitudinal bars 31a, 31b and 31c are respectively associated with the first jaw 10 and with the abutment plate 4, for example by means of screws or other equivalent fastening systems.
  • This construction allows, if necessary, to replace the longitudinal bars 31a, 31b, 31c with other bars having a different length, so as to change the distance between the first jaw 10 and the abutment plate 4.
  • a second jaw 20 is slidingly mounted on the longitudinal bars 31a, 31b, 31c and will engage a second tubular member.
  • the second jaw 20 can move with respect to the first jaw 10, and this allows the manual press 1 to pass from an open condition, in which the two jaws are substantially at their maximum mutual distance, to a tightening condition, in which the two jaws are substantially at their minimum mutual distance.
  • the second jaw 20 is provided with a second guide means 40, which allows the second jaw to maintain more easily a substantially parallel arrangement with respect to the first jaw 10, during transition from the open condition to the tightening condition.
  • the second guide means 14 is preferably constituted by a pair of rods 41a and 41b, which are respectively parallel to each other and are also parallel to the longitudinal bars 31a, 31b, 31c.
  • the two rods 41a and 41b are fastened, at one end, to the second jaw 20, by means of screws or other equivalent systems, and can slide freely with respect to the abutment plate 4.
  • Two notches 5a and 5b are provided on the main body 2 and are mutually diametrically opposite, with a shape that is respectively complementary to the profile of the transverse cross-section of each rod 41a and 41b, which is accommodated slidingly.
  • the rods 41a and 41b and the notches 5a and 5b relate to the specific embodiments described; however, in a further constructive variation, not shown in the accompanying figures, they might also be omitted, without compromising at all the correct operation of the manual press 1.
  • the first jaw 10 and the second jaw 20 are constituted by two plate-like bodies. Two substantially U-shaped multifunctional seats designated respectively by the reference numerals 11 and 21, are provided on top of the plate-like bodies.
  • the multifunctional seats are shaped so as to accommodate a first adapter 12 and a second adapter 22.
  • the two adapters 12 and 22 are substantially U-shaped and have a shape that allows to engage them by interlocking respectively with the body 1000 and with the ring 1001 or vice versa.
  • the adapters 12 and 22 are associated with the multifunctional seats 11 and 21 detachably and are mutually interchangeable.
  • the manual press 1 comprises a manual feed device 50, which is functionally connected to the second jaw 20 in order to allow the transition from the open condition to the tightening condition by using only the strength of one's hands.
  • the manual feed device 50 comprises at least one friction pusher 51, which is slidingly crossed by a pusher rod 53.
  • the pusher rod 53 is joined at one end to the second jaw 20 and is arranged parallel to the first guide means 30 and to the second guide means 40.
  • the friction pusher 51 is actuated by an oscillating lever 52, which is articulated to the main body 2 substantially at the mutually opposite fixed lever 3, which is transverse to the direction of motion of the second jaw 20.
  • the friction pusher 51 interacts with the pusher rod 53 so as to move the second jaw 22 toward the first jaw 10, during transition from the open condition to the tightening condition.
  • the movement of the oscillating lever 52 is in fact converted into the linear movement of the friction pusher 51, which by overcoming the thrust of a first elastic means that abuts against the main body 2, not shown in the figures, causes the advancement of the second jaw 20 with respect to the first jaw 10.
  • the first elastic means moves the friction pusher 51 into a position that is substantially parallel to the longitudinal axis of the pusher rod 53, so as to allow their mutual sliding and return the oscillating lever 52 to the inactive position.
  • the configuration described above allows to use an oscillating lever 52 that is particularly advantageous, i.e., has a very short resistance arm with respect to the effort arm. Accordingly, the manual press 1 is capable of generating a considerable tightening force starting from a relatively modest muscular effort by the operator.
  • the manual feed device 50 is provided with a retention mechanism 60, which is activated automatically after each movement of the second jaw 20 toward the first jaw 10.
  • the retention mechanism 60 comprises a trigger 61 which is provided with a hole 62 in which the pusher rod 53 is slidingly accommodated.
  • the trigger 61 is pivoted to the main body 2, at one of its ends.
  • the trigger 61 is arranged transversely to the longitudinal axis of the pusher rod 53 and interacts with it in order to reversibly lock the second jaw 20 with respect to the first jaw 10, during transition from the open condition to the tightening condition.
  • a second elastic means not shown in the figures, abuts against the main body 2 and turns the trigger 61 with respect to its pivoting axis.
  • the rotation induces mechanical interference between the trigger 61 and the pusher rod 53, preventing their relative sliding.
  • the manual feed device 50 and the retention mechanism 60 are preferably covered by a protective enclosure 70, which is detachably associated with the main body 2.
  • the manual press is generally designated by the reference numeral 101.
  • the manual press 101 is adapted to perform the butt welding of pipes and/or connectors made of heat-sealable synthetic material, and therefore the tubular members are constituted by the end of a first pipe and by the end of a second pipe.
  • a first jaw 110 and a second jaw 120 are provided respectively with a first pipe locking device 112 and with a second pipe locking device 122, of a per se known type.
  • Each one of the two pipe locking devices essentially comprises two mutually opposite members, which form, when they are joined, a circular seat that is adapted to lock a portion of pipe.
  • first member in practice can be identified as the first jaw 110 or the second jaw 120
  • second member designated respectively by the reference numeral 113 and 123
  • the first member in practice can be identified as the first jaw 110 or the second jaw 120
  • the second member designated respectively by the reference numeral 113 and 123, is constituted by a plate-like body, which is substantially U-shaped and is pivoted by one of its ends to the first member.
  • a closure device designated respectively by the reference numerals 116 and 126, is fitted at the free ends of each member.
  • a slot is provided on the grip surface of the members and accommodates a corresponding portion of a body for reducing the diameter of the pipe locking seat.
  • the slots are designated respectively by the reference numerals 114a, 114b, 124a and 124b, and the portions of the reduction bodies are designated by the reference numerals 115a, 115b, 125a and 125b.
  • the first tubular member is engaged with the first jaw 10 or 110 while the second tubular member is engaged with the second jaw 20 or 120.
  • the two tubular members are constituted by the body 1000 of a mechanical connector and by the corresponding ring 1001, the first adapter 12 and the second adapter 22 are associated beforehand with the corresponding multifunctional seats 11 and 21.
  • tubular members When the tubular members are constituted by the end of a first pipe and by the end of a second pipe, they are fixed respectively to the first pipe locking device 112 and to the second pipe locking device 122.
  • fixing is perfected by joining the second member 113 and/or 123 to the first member, i.e., to the first jaw 110, and/or to the second jaw 120, so as to form a circular seat that is adapted to lock a portion of pipe.
  • Locking is then completed by tightening the closure devices 116 and 126.
  • the ends of the first pipe and of the second pipe to be joined must be prepared by means of cutting operations and subsequently heated with a heater.
  • the action of the operator on the oscillating lever 52 leads to the linear movement of the friction pusher 51, which by interfering mechanically with the pusher rod 53 moves the second jaw 20 or 120 toward the first jaw 10 or 110 and consequently moves the two tubular members to be joined mutually closer.
  • the retention mechanism 60 is activated automatically and locks the second jaw 20 or 120 in the position it has reached, even when the action of the operator on the oscillating lever 52 ceases.
  • the trigger 61 is subjected to the action of the second elastic means and by rotating with respect to its pivoting axis, by virtue of the minimal play that exists between the hole 62 and the pusher rod 53, interferes mechanically with the rod, preventing further sliding.
  • the first elastic means restores the substantially parallel arrangement between the friction pusher 51 and the pusher rod 53 and returns the oscillating lever 52 to the inactive position.
  • the advancement of the second jaw 20 or 120 with respect to the first jaw 10 or 110 causes transition from the open condition to the tightening condition, which leads to the joining of the two tubular members.
  • the ring 1001 is interlocked on the body 1000 of the mechanical connector, while in the other case the end of the first pipe is heat-sealed to the end of the second pipe.
  • the transition from the open condition to the tightening condition occurs by acting on the oscillating lever 52 a very limited number of times.
  • the manual press according to the invention is capable of generating a tightening force that is particularly intense, equal to at least 5000 N, with a relatively modest muscular effort by the operator.
  • the manual press does not require, for its operation, any type of electrical and/or hydraulic connection.
  • this manual press can be used both for tightening mechanical connectors and for performing butt welds of pipes and/or connectors made of heat-sealable material.
  • the manual press according to the invention is lightweight, easy to handle and particularly advantageous from a strictly economic point of view.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Automatic Assembly (AREA)
  • Paper (AREA)
EP10007899A 2009-08-03 2010-07-29 Handbetriebene Presse für Verbindungsstellen Withdrawn EP2281661A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT001403A ITMI20091403A1 (it) 2009-08-03 2009-08-03 Pressa manuale, particolarmente per giunzioni.

Publications (1)

Publication Number Publication Date
EP2281661A1 true EP2281661A1 (de) 2011-02-09

Family

ID=41559522

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10007899A Withdrawn EP2281661A1 (de) 2009-08-03 2010-07-29 Handbetriebene Presse für Verbindungsstellen

Country Status (2)

Country Link
EP (1) EP2281661A1 (de)
IT (1) ITMI20091403A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102922439A (zh) * 2012-10-26 2013-02-13 昆山特力伯传动科技有限公司 输送带的接口对接钳
CN108705560A (zh) * 2018-07-18 2018-10-26 江苏农林职业技术学院 一种机器人手臂
CN112539928A (zh) * 2020-11-30 2021-03-23 山东航天电子技术研究所 一种用于钢珠式快速接头的对接测试装置
US11654536B2 (en) 2020-08-17 2023-05-23 Snap-On Incorporated Joint press adapter

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29713844U1 (de) * 1997-08-02 1997-11-13 Knipping, Daniel, 44797 Bochum Vorrichtung zum Verpressen von Rohrendbereichen
EP0900633A1 (de) * 1997-09-03 1999-03-10 Virax S.A. Zange zum Aufschieben von Ringen
DE10143649A1 (de) * 2001-09-05 2003-03-20 Manfred Reckzeh Einziehvorrichtung und-verfahren für Rohre insbesondere Kunststoffrohre
US20040128814A1 (en) * 2002-11-04 2004-07-08 Esson Allan B. Assembly tool system and fixture
FR2851948A1 (fr) * 2003-03-07 2004-09-10 Michel Michard Dispositif d'assemblage d'un premier et d'un deuxieme tuyau
US20050120539A1 (en) * 2003-12-09 2005-06-09 Tutt Milton W. Conduit coupling system, tool and method
US7322085B1 (en) * 2002-02-12 2008-01-29 Joel Kent Benson Portable hose fitting inserter

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29713844U1 (de) * 1997-08-02 1997-11-13 Knipping, Daniel, 44797 Bochum Vorrichtung zum Verpressen von Rohrendbereichen
EP0900633A1 (de) * 1997-09-03 1999-03-10 Virax S.A. Zange zum Aufschieben von Ringen
DE10143649A1 (de) * 2001-09-05 2003-03-20 Manfred Reckzeh Einziehvorrichtung und-verfahren für Rohre insbesondere Kunststoffrohre
US7322085B1 (en) * 2002-02-12 2008-01-29 Joel Kent Benson Portable hose fitting inserter
US20040128814A1 (en) * 2002-11-04 2004-07-08 Esson Allan B. Assembly tool system and fixture
FR2851948A1 (fr) * 2003-03-07 2004-09-10 Michel Michard Dispositif d'assemblage d'un premier et d'un deuxieme tuyau
US20050120539A1 (en) * 2003-12-09 2005-06-09 Tutt Milton W. Conduit coupling system, tool and method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102922439A (zh) * 2012-10-26 2013-02-13 昆山特力伯传动科技有限公司 输送带的接口对接钳
CN108705560A (zh) * 2018-07-18 2018-10-26 江苏农林职业技术学院 一种机器人手臂
CN108705560B (zh) * 2018-07-18 2023-05-23 江苏农林职业技术学院 一种机器人手臂
US11654536B2 (en) 2020-08-17 2023-05-23 Snap-On Incorporated Joint press adapter
TWI806126B (zh) * 2020-08-17 2023-06-21 美商施耐寶公司 接頭擠壓器轉接器
US11813723B2 (en) 2020-08-17 2023-11-14 Snap-On Incorporated Joint press adapter
CN112539928A (zh) * 2020-11-30 2021-03-23 山东航天电子技术研究所 一种用于钢珠式快速接头的对接测试装置

Also Published As

Publication number Publication date
ITMI20091403A1 (it) 2011-02-04

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