EP4049796A1 - Clé d'accouplement et adaptateur - Google Patents

Clé d'accouplement et adaptateur Download PDF

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Publication number
EP4049796A1
EP4049796A1 EP22157803.2A EP22157803A EP4049796A1 EP 4049796 A1 EP4049796 A1 EP 4049796A1 EP 22157803 A EP22157803 A EP 22157803A EP 4049796 A1 EP4049796 A1 EP 4049796A1
Authority
EP
European Patent Office
Prior art keywords
key
adapter
area
recess
coupling
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
EP22157803.2A
Other languages
German (de)
English (en)
Inventor
Roland Uhlig
Rico Uhlig
Tobias Uhlig
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.)
Uhlig Praezisions Fertigungs GmbH
Original Assignee
Uhlig Praezisions Fertigungs 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
Priority claimed from DE102021104262.3A external-priority patent/DE102021104262B4/de
Priority claimed from DE202021100891.1U external-priority patent/DE202021100891U1/de
Application filed by Uhlig Praezisions Fertigungs GmbH filed Critical Uhlig Praezisions Fertigungs GmbH
Publication of EP4049796A1 publication Critical patent/EP4049796A1/fr
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F1/00—Combination or multi-purpose hand tools
    • 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
    • B25B13/04—Spanners; Wrenches with rigid jaws of ring 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
    • B25B13/02—Spanners; Wrenches with rigid jaws
    • B25B13/06—Spanners; Wrenches with rigid jaws of socket type
    • B25B13/065—Spanners; Wrenches with rigid jaws of socket type characterised by the cross-section of the socket
    • 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
    • B25B23/0007—Connections or joints between tool parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25G—HANDLES FOR HAND IMPLEMENTS
    • B25G1/00—Handle constructions
    • B25G1/005—Handle constructions for screwdrivers, wrenches or spanners with additional levers, e.g. for increasing torque

Definitions

  • the invention relates to a coupling key for coupling fire hoses and an adapter.
  • coupling keys are used in particular in the fire service.
  • coupling keys are standardized which are intended for coupling A, B and C pressure and suction hoses and for connecting to pumps and fittings.
  • These wrenches consist of a handle and a crescent cam. The latter has cams depending on the number of sizes of the clutches to be operated, with the distance between two cams corresponding to one clutch size in each case.
  • the cams are designed as projections that are rectangular or trapezoidal in cross section.
  • the clutch wrench shown is also used to connect A, B and C clutches. For this purpose it also has cam-like elevations on the crescent-shaped part, which are used to encompass the corresponding clutch size.
  • an isosceles triangle extends symmetrically about the device axis, one tip of which represents the end of the crescent-shaped part 2 .
  • the isosceles triangle has a congruent triangular recess which is used as a key to open and close A, B and C dummy couplers on a pillar hydrant.
  • an inner triangular sleeve is arranged almost in the middle, which is used to open and close the fall casing of a pillar hydrant.
  • the inner triangular sleeve is about twice as high as the rest of the clutch key, which is very large overall.
  • a coupling key for coupling fire hoses which has a key area consisting of several key surfaces, which is delimited at one end by a stop, wherein a defined key width can be assigned to the stop and one of the key surfaces in such a way that between the stop and the first spanner flat a spanner size corresponding to "Storz D", between the stop and the second spanner flat a spanner size corresponding to "hazardous goods DN32", between the stop and the third spanner flat a spanner width corresponding to "Storz C" and "hazardous goods DN50", between the stop and a key width corresponding to "Storz B" can be detected for the fourth key surface and a key width corresponding to "Storz A" can be detected between the stop and the fifth key surface.
  • the object of the invention is to create a clutch key with which a quick and targeted detection of all common clutch sizes is possible and which has a compact structure and to which an adapter for actuating further locking elements can be adapted via at least one adapter element, as well as an adapter for To make available.
  • the clutch key according to the invention has an essentially C-shaped, flat key area on which several key surfaces are formed, the clutch key having at least one adapter element with which a corresponding adapter for actuating further locking elements can be detachably connected.
  • the wrench flats are preferably located on the peripheral inner contour of the wrench area. At least one end of the in particular C-shaped key area and/or on the peripheral outer contour, which faces away from the inner contour, there is a handle area which is formed in one piece with the key area.
  • a defined key width can be assigned to the stop and one of the key surfaces in such a way that a key width corresponding to "Storz D" is between the stop and the first key surface, and between the stop and the second key surface a wrench size corresponding to "hazardous goods DN32", between the stop and the third wrench flat a wrench size corresponding to "Storz C” and "hazardous goods DN50", between the stop and the fourth wrench flat a wrench size corresponding to "Storz B" and between the stop and the fifth wrench flat a wrench size corresponding to "Storz A" can be detected.
  • the clutch key which is designed as an essentially planar structure, has a grip area which is arranged on the end of the key area opposite the stop. However, it can also have a grip area which is arranged on the side of the key area which is remote from the key surfaces.
  • the handle area has openings for additional operating functions.
  • the handle portion has an opening for engagement of a square wrench and openings for engagement of hex wrenches.
  • an opening serving to fasten the coupling key is provided in the grip area.
  • the tapering end of the key area opposite the stop can also be used as a key.
  • each key size can be assigned a suitable distance from the stop that delimits the key area on one side to one of the key surfaces, it is ensured that the correct size can be set quickly and without any problems.
  • the stop serves as the first limit for each wrench size, while the second limit is formed by one of the wrench faces of the wrench area depending on the size of the clutch to be detected.
  • the clutch key K has figure 1 a key area 1 bent here essentially in a C-shape, which consists of a plurality of contours on its inner peripheral surface 1a.
  • Each of these contours represents a wrench flat 1.1, 1.2, 1.3, 1.4, 1.5, which can be brought into or out of engagement with the couplings to be opened or closed, for example of fire hoses.
  • the key area 1 is delimited by a stop 2 at its first end 1b.
  • the stop 2 serves as a point of attack for each wrench size on the to-use coupling of the fire hose.
  • the second point of attack is formed by the matching wrench flat. Since the wrench flats 1.1, 1.2, 1.3, 1.4, 1.5 represent a contour area without cams or similar stops, with each of the wrench flats 1.1, 1.2, 1.3, 1.4, 1.5 forming an individual contour, a quick, basically "blind" approach is possible the clutch possible.
  • the grip area 3 can be arranged on the outer peripheral surface 1d opposite the inner peripheral surface 1a.
  • an adapter element 4 is formed here.
  • openings 5.1, 5.2 are provided here.
  • the opening 5.1 is used, for example, to hang up the clutch key and the hexagonal opening 5.2 for engaging a hex key.
  • an adapter element 4 is formed in the form of a square.
  • the dimensions of the square are either 1/4 inch, 3/8 inch or 1/2 inch.
  • the square is preferably designed as a 3/8 inch interface.
  • a spring-loaded ball 4.1 is arranged, which is suitable for fixing an attached adapter, not shown here, in its position.
  • the material thickness of the coupling key preferably corresponds to the dimensions of the square, preferably 3/8 inch or 0.95 cm. However, a step between the material thickness of the coupling key and the adapter element 4 would also be possible.
  • Grip area 3 is also intended for additional operating functions. For this purpose it has openings 5.3, 5.4. So the breakthrough 5.4 is used to hold a square key z. B. can be used as a hand wheel replacement in wall hydrant cabinets. The breakthrough 5.3 is provided for a hex key, z. B. for battery terminals in cars or trucks.
  • the stop 2 opposite second end 1c of the key portion 1 is formed at an angle a sloping.
  • this part of the coupling key (the second end 1c) can also be used as a key - for example as a key for a riser or a wall hydrant.
  • the entire clutch key K including the handle area 3 and the adapter element 4 is preferably made from a flat material.
  • the clutch key K which is designed as an essentially flat structure, is easy to handle, has a low weight and relatively small dimensions, and can be produced easily and inexpensively.
  • the problem-free and quick detection of the correct key size by the coupling key according to the invention is to be seen as particularly advantageous compared to the known coupling keys. This is achieved due to the above-described contoured design of the wrench flats in conjunction with a stop common to all wrench flats.
  • figure 3 shows a variant of a new adapter 6 according to the invention from the direction of its underside 6a, and figure 4 from the direction of its top 6b.
  • a concave recess 7.1 is introduced in a side wall (not designated) of the first recess 7, a concave recess 7.1 is introduced.
  • the adapter 6 has a slot 9 from its outer circumference to the key contour/recess 8 .
  • the key contour is formed in the second recess 8 of the adapter 6, which is open on the peripheral side.
  • the slot 9 is formed somewhat deeper than the recess 8.
  • the key contour is essentially triangular here and is used for. B. to operate a triangular key. In this case, only one side 8a and two corners 8.1, 8.2 of the triangle are formed completely in the second recess 8 and the other two sides 8b and 8c only partially and the third corner 8.3 is not.
  • the depths of the first recess 7 and the second recess 8 are designed in such a way that they are separate from one another and do not merge into one another. With the adapter 6, a triangular wrench can be safely actuated and the required torque can be transmitted, although the side edges 8b and 8c are not completely formed, since the adapter is open on the peripheral side in the region of the second recess 8.
  • the adapter 6 On the peripheral side, the adapter 6 has a first flattened area 6c on the side of the slot 9 and a parallel second flattened area 6d opposite this.
  • the flat areas 6c, 6d in connection with the peripherally open contour in the area of the second recess 8 result in an overall flat design of the adapter 7 with a small depth t.
  • the width b is larger in comparison and the height h is chosen so that the first recess 7 ensures a secure connection with a corresponding adapter element and the second recess ensures a secure connection with a corresponding key (here triangular key).
  • figure 5 shows the top view of the adapter 6, from which the circumferentially incomplete triangular shape of the second recess 8 and the slot 9 can be seen.
  • FIG 6 the view of the adapter 6 from below in the direction of the first recess 7 is shown.
  • the circumferential flattenings 6c and 6d can also be seen from these representations.
  • figure 7 shows the plan view of the adapter 6 from the direction of the second recess 8, which is designed here as a square to accommodate a square.
  • the side edges 8a, 8b of the recess 8 are fully formed and the side edges 8c and 8d only partially.
  • the side edges 8c and 8d should still transmit sufficient torque to a corresponding square key.
  • the side edges 8a, 8b, 8c, 8d of the recess 8 are inclined here at an angle of approximately 45° in relation to the flattened areas 6c, 6d.
  • FIG 8 In figure 8 are a clutch key K according to figure 2 and an adapter 6 according to FIG Figure 3 to 6 shown plugged together.
  • the adapter 6 was placed with the first recess 7 onto the adapter element 4 which adjoins the handle area 3 .
  • the spring-loaded ball 4.1 engages (see figure 2 ) in the concave recess 7.1 (see figure 3 ) in the side wall of the first recess 7 a.
  • the adapter 6 is fixed axially on the clutch key K.
  • the connection should be able to be released again when an axial force is applied using muscle power.
  • FIGS. 9 to 10 show further variants of the arrangement of grip area 3 and adapter element 4 on key area 1 of a clutch key K, indicated by dashed lines.
  • key area 1 several non-designated openings are provided, which can be used to operate other keys (square, hexagon), as well as a round opening for Hanging the mini clutch key.
  • the handle portion 3 is provided at the end 1c.
  • An adapter element 4 is provided on the opposite end 1b and on the outer peripheral surface 1d facing away from the peripheral surface 1a with the key surfaces not designated here.
  • one adapter element 4 can be designed in the form of a square and the other adapter element 4 can be designed in the form of a hexagon.
  • figure 10 shows a variant in which the handle area 3 is provided at the end 1c.
  • An adapter element 4 is arranged on the opposite end 1b and on the outer peripheral surface 1d.
  • one adapter element can be in the form of a square and the other adapter element in the form of a hexagon.
  • the handle area 3 is arranged on the outer peripheral surface 1d and an adapter element 4 is formed at each end 1a, 1c.
  • a coupling key is created which, due to its small and flat design, can be placed in a trouser pocket, for example, by employees of the fire brigade or special forces and can be used in a variety of ways. Due to the possibility of using an adapter on the adapter element to operate other keys, e.g. B. of three or square keys, the field of application of the "mini" clutch key is expanded.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
EP22157803.2A 2021-02-23 2022-02-21 Clé d'accouplement et adaptateur Pending EP4049796A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021104262.3A DE102021104262B4 (de) 2021-02-23 2021-02-23 Kupplungsschlüssel und Adapter
DE202021100891.1U DE202021100891U1 (de) 2021-02-23 2021-02-23 Kupplungsschlüssel und Adapter

Publications (1)

Publication Number Publication Date
EP4049796A1 true EP4049796A1 (fr) 2022-08-31

Family

ID=80445900

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22157803.2A Pending EP4049796A1 (fr) 2021-02-23 2022-02-21 Clé d'accouplement et adaptateur

Country Status (1)

Country Link
EP (1) EP4049796A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9213406U1 (fr) 1992-10-06 1993-01-14 Vries, Rolf De, 2070 Ahrensburg, De
DE9314270U1 (de) 1993-09-17 1993-12-23 Buna Ag Kupplungsschlüssel
US6899001B1 (en) * 2003-09-03 2005-05-31 Alan Sanders Firefighter's wrench
DE202005019741U1 (de) * 2005-12-15 2006-03-02 Uhlig Präzisions Fertigungs GmbH Kupplungsschlüssel
US20110192259A1 (en) * 2009-11-16 2011-08-11 Apollo Design Technology, Inc. Wrench

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9213406U1 (fr) 1992-10-06 1993-01-14 Vries, Rolf De, 2070 Ahrensburg, De
DE9314270U1 (de) 1993-09-17 1993-12-23 Buna Ag Kupplungsschlüssel
US6899001B1 (en) * 2003-09-03 2005-05-31 Alan Sanders Firefighter's wrench
DE202005019741U1 (de) * 2005-12-15 2006-03-02 Uhlig Präzisions Fertigungs GmbH Kupplungsschlüssel
US20110192259A1 (en) * 2009-11-16 2011-08-11 Apollo Design Technology, Inc. Wrench

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ANONYMOUS: "DIN 14822-1:2016-03 Kupplungsschlüssel für Feuerwehrarmaturen - Teil 1: Kupplungsschlüssel BC", 1 March 2016, DIN NORM, DIN, DE, PAGE(S) 1 - 6, XP009534444 *

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