EP4344825A1 - Dispositif de montage de couple et fixation de clé de type crochet - Google Patents

Dispositif de montage de couple et fixation de clé de type crochet Download PDF

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Publication number
EP4344825A1
EP4344825A1 EP23199394.0A EP23199394A EP4344825A1 EP 4344825 A1 EP4344825 A1 EP 4344825A1 EP 23199394 A EP23199394 A EP 23199394A EP 4344825 A1 EP4344825 A1 EP 4344825A1
Authority
EP
European Patent Office
Prior art keywords
torque
wrench
hook
partial ring
ring section
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.)
Pending
Application number
EP23199394.0A
Other languages
German (de)
English (en)
Inventor
Volker Heimburger
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.)
Schuetz Messtechnik GmbH
Original Assignee
Schuetz Messtechnik GmbH
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 Schuetz Messtechnik GmbH filed Critical Schuetz Messtechnik GmbH
Publication of EP4344825A1 publication Critical patent/EP4344825A1/fr
Pending 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
    • B25B13/00—Spanners; Wrenches
    • B25B13/02—Spanners; Wrenches with rigid jaws
    • B25B13/08—Spanners; Wrenches with rigid jaws of open jaw type
    • 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
    • B25B13/00—Spanners; Wrenches
    • B25B13/48—Spanners; Wrenches for special purposes
    • B25B13/50—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes
    • 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
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/142—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers
    • B25B23/1422—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters
    • 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
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/142—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers
    • B25B23/1422—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters
    • B25B23/1425—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters by electrical means
    • 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
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/142—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers
    • B25B23/1422—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters
    • B25B23/1427—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters by mechanical means

Definitions

  • the invention relates to a torque mounting device for mounting and dismounting union nuts on wall-mounted gas meters.
  • a bellows gas meter is a gas meter for measuring the gas volume flow through displacement measurement.
  • Such bellows gas meters are mainly used as household gas meters and in industrial systems in the low-pressure area. In gas pressure control and gas measuring systems, these meters are usually used in small sizes for space and cost reasons.
  • Such gas meters must be coordinated with the relevant gas supply company in terms of their arrangement (including size and type of meter); In any case, the installation location must be easily accessible, dry and not too warm and it should be easy to read. Typically, such a gas meter should be installed without tension and at least two centimeters away from the masonry.
  • Such gas meters can be designed as two- or single-nozzle gas meters, with single-nozzle gas meters being connected to the gas line using special fittings.
  • a union nut is firmly connected to the corresponding nozzle or attachment fitting on the gas meter. Secure fastening is essential for safety reasons.
  • the US2016/0075005 A1 a torque wrench for tightening nuts or sockets on a fitting and has an articulated open-end wrench with virtually no connecting piece to a handle that is not designed for two- or single-spout gas meters that are connected to gas pipes via their specific fittings.
  • a first embodiment of an improved tool according to the invention is provided by a torque assembly device which is designed for mounting and dismounting polygonal components with internal threads on a corresponding mating thread.
  • the device has a torque wrench with a working end and a hook-like wrench attachment.
  • This has a partial ring section from which a handle extends, with “extended away” here illustrating the advantageous, stable, one-piece design of the tool.
  • the partial ring section On its inner wall, the partial ring section is equipped with a polygonal geometry.
  • the stem opens into a connecting element which is releasably engaged with the working end section of the torque wrench.
  • Polyangular components with an internal thread that are to be mounted on a corresponding mating thread include union nuts on gas meters, which are difficult to access, particularly in single-socket gas meters when they are wall-mounted as required.
  • polygonal component with internal thread means the design of a union molding and has eight external edges and an internal thread, corresponding to an octagonal nut, but with a flange at the upper edge.
  • the cap molding could also be equipped with a different number of edges, for example five or six;
  • a common nut up to a square nut can be advantageously mounted in poorly accessible places using the device according to the invention;
  • the device according to the invention can be helpful every time such a polygonal nut is assembled if the torque needs to be checked for safety reasons.
  • the corresponding polygonal component with an internal thread can have a flange on the edge or can be closed by a cap or a lid.
  • “Working end” or “working end section” of the torque wrench is understood herein to include, but not be limited to, a ratchet or ratchet; This usually has a pin onto which a tool or a key attachment can be attached.
  • Alternative designs such as the rectangular holder or similar for interchangeable tool heads in different profiles such as open-end, ring, open-ring or hexagonal wrenches are known to those skilled in the art.
  • a hook-like wrench attachment according to the invention with a partial ring section with a polygonal geometry is not known to the person skilled in the art: This can be used for mounting polygonal components with an internal thread on a corresponding counter thread, such as for mounting connection pieces of wall-mounted gas meters, such as single-spout gas meters in particular, and in particular to grip the special shaped piece, which is usually a polygonal union nut, which is intended to seal the gas line to the inlet on the wall-mounted gas meter: Due to the correspondingly correlating polygonal geometry of the hook-like wrench attachment and its open side, the partial ring section can be easily positioned, the correspondingly long handle means that the torque mounting device has space despite the cramped arrangement of the single-spout gas meter or gas meter on the wall, and the torque functionality of the torque wrench connected to it enables precise and gas-tight assembly.
  • Handle here means what is otherwise meant by the handle on a hand screwdriver; however, since the user does not grip there, but on the torque wrench, the term “handle” was chosen.
  • the polygonal geometry of the inner wall has four angles.
  • the four angles are advantageously 135° if the insert is intended for a single-piece gas meter with an octagonal union nut.
  • the torque assembly device according to the invention can be used in many different ways, and the polygonal components to be tightened under torque control can have different sizes.
  • a partial ring section of the hook-like wrench attachment of a torque assembly device according to the invention can therefore have a wrench width of 30 to 150 mm, preferably 45 mm to 120 mm and particularly preferably 65 mm, which is a common size for the household gas meters mentioned; a tolerance limit of the wrench width can be +/-0.2 mm, preferably +0.2/-0.0 mm.
  • the partial ring section suitably has a round outer wall in order to take account of the limited space on the wall.
  • the wrench could also have a square instead of round outer wall.
  • the handle of the hook-like key attachment can have a length of 50 mm to 150 mm, preferably 60 mm to 120 mm, particularly preferably 90 mm.
  • the handle and the partial ring section of the hook-like wrench attachment have a height of 12 mm to 25 mm, preferably 15 mm to 20 mm, particularly preferably 18 mm.
  • the handle opens into the connecting element via a step on an upper side and on a lower side.
  • a passage opening extends through the connecting element from the top to the bottom; this passage opening is aligned with a passage opening of the working end section; a connection can be made by a bolt that extends through the passage openings of both components in order to releasably connect the hook-like wrench attachment to the torque wrench.
  • a plug connection with a locking ball is also possible here.
  • connection depends on the choice of torque wrench, which can be freely selected to solve the task; depending on its connecting piece for other tools known in the prior art, the hook-like wrench attachment according to the invention is designed with a suitably connectable connecting piece.
  • a hook-like wrench attachment which is designed for detachable attachment to a torque wrench.
  • the hook-like wrench attachment according to the invention has a partial ring section from which a handle extends, wherein the partial ring section has an inner wall with a polygonal geometry and wherein the handle opens at its end pointing away from the partial ring section into a connecting element which can be detachably brought into engagement with the working end section of the torque wrench.
  • the present invention relates to a torque assembly device 1 as shown in Fig. 2 is shown.
  • the torque assembly device 1 is equipped with a hook-like key attachment 2, as shown in Fig. 1 , 2 , 3 and 4 you can see.
  • the torque assembly device 1 is used to assemble and disassemble polygonal components with internal threads on a corresponding mating thread such as the union nut 101 on the socket 102 or shoulder fitting of a single-socket gas meter 100, as shown in Fig. 3 is shown.
  • the union nut 101 of the single-piece gas meter 100 shown is difficult to access when mounted on the wall, since the single-piece gas meter 100 must be mounted close to the wall in a mounting arrangement in order to accommodate the gas line (figuratively not shown) in the nozzle 102.
  • the hook-like wrench attachment 2 has a partial ring section A from which the handle B extends, whereby, as Fig. 1 to 4 clearly show that the ring section A and the stem B are integrally formed, i.e. made from one piece or workpiece.
  • the stem B continues (also in one piece) at its free end on the top side 3.1 (see Fig.4 ) and on the underside 3.2 via the step 5 into the connecting element 4, which establishes the connection to a working end section of the torque wrench 10, which is usually formed by a ratchet or ratchet 11 (see Fig.2 ).
  • This has a through-opening 12.
  • the through-opening 6 of the hook-like wrench attachment 2 is aligned with the through-opening 12 in the assembled state when the connecting element 4 is inserted into the recess of the ratchet 11, and a firm connection can be made by means of a bolt 13.
  • the partial ring section A of the hook-like key attachment 2 has an inner wall with a polygonal geometry, here formed by four angles of 135°, and also has a wrench size SW of 65 mm, the tool can be cleverly pushed onto the union nut 101 from the side even when there is little space, and this can be tightened under torque control by the drive of the torque wrench 10; the display window 14 of the torque wrench 10 offers a visual control.
  • the handle B has a length of 9 cm and is thus short enough not to cause steric obstruction, and long enough to apply the desired lever.
  • the hook-like key attachment 2 has a partial ring section A with a round outer wall 8 and can thus be skillfully moved in the wall section on which the single-socket gas meter 100 is inserted.
  • the hook-like key attachment 2 requires little space, its handle B extends forward, to the side facing away from the wall - the person skilled in the art can easily see that the side of the single-socket gas meter 100, which has the reading unit 103, is of course turned away from the wall in order to be used - and can be easily and cleverly operated using the torque wrench, not shown here.
  • the dimensions of the hook-like wrench attachment could also be different if, for example, the union nut has a different geometry or a larger diameter; then the wrench size can be adjusted accordingly and a suitable torque wrench selected.
  • the tool advantageously ensures that the screw connection on the single-pipe gas meter shown as an example, but also on other regulators and meters, is carried out safely and in a controlled manner; tightening with a pipe wrench and subsequent testing with a foam-forming agent, both of which are no longer up-to-date and also not safe, are no longer necessary.
  • the tool takes modern sealing materials into account; a defined torque and thus long-term tightness are ensured.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
EP23199394.0A 2022-09-27 2023-09-25 Dispositif de montage de couple et fixation de clé de type crochet Pending EP4344825A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102022124771.6A DE102022124771A1 (de) 2022-09-27 2022-09-27 Drehmoment-Montagevorrichtung und hakenartiger Schlüsselaufsatz

Publications (1)

Publication Number Publication Date
EP4344825A1 true EP4344825A1 (fr) 2024-04-03

Family

ID=90055547

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23199394.0A Pending EP4344825A1 (fr) 2022-09-27 2023-09-25 Dispositif de montage de couple et fixation de clé de type crochet

Country Status (2)

Country Link
EP (1) EP4344825A1 (fr)
DE (1) DE102022124771A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6868761B2 (en) * 2002-11-12 2005-03-22 Entegris, Inc. Breakaway torque wrench
DE102013011370A1 (de) * 2013-07-09 2014-03-27 Daimler Ag Baukastensystem für ein Handwerkzeug sowie Verfahren zum Herstellen eines Handwerkzeugs
US20160075005A1 (en) 2014-09-16 2016-03-17 Fit-Line, Inc. Torque limiting wrench for plastic and other fittings
US20210039232A1 (en) * 2018-02-09 2021-02-11 ECA Medical Instruments, Inc. Adjustable disposable torque limiting mount and device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6868761B2 (en) * 2002-11-12 2005-03-22 Entegris, Inc. Breakaway torque wrench
DE102013011370A1 (de) * 2013-07-09 2014-03-27 Daimler Ag Baukastensystem für ein Handwerkzeug sowie Verfahren zum Herstellen eines Handwerkzeugs
US20160075005A1 (en) 2014-09-16 2016-03-17 Fit-Line, Inc. Torque limiting wrench for plastic and other fittings
US9694481B2 (en) * 2014-09-16 2017-07-04 Fit-Line, Inc. Torque limiting wrench for plastic and other fittings
US20210039232A1 (en) * 2018-02-09 2021-02-11 ECA Medical Instruments, Inc. Adjustable disposable torque limiting mount and device

Also Published As

Publication number Publication date
DE102022124771A1 (de) 2024-03-28

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