EP2620262A1 - Agencement d'embrayage pour un disjoncteur - Google Patents

Agencement d'embrayage pour un disjoncteur Download PDF

Info

Publication number
EP2620262A1
EP2620262A1 EP13405005.3A EP13405005A EP2620262A1 EP 2620262 A1 EP2620262 A1 EP 2620262A1 EP 13405005 A EP13405005 A EP 13405005A EP 2620262 A1 EP2620262 A1 EP 2620262A1
Authority
EP
European Patent Office
Prior art keywords
drive shaft
lever
handle
coupling arrangement
arrangement according
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.)
Granted
Application number
EP13405005.3A
Other languages
German (de)
English (en)
Other versions
EP2620262B1 (fr
Inventor
Francesco Sanfratello
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.)
SUHNER INTERTRADE AG
Original Assignee
SUHNER INTERTRADE AG
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 SUHNER INTERTRADE AG filed Critical SUHNER INTERTRADE AG
Publication of EP2620262A1 publication Critical patent/EP2620262A1/fr
Application granted granted Critical
Publication of EP2620262B1 publication Critical patent/EP2620262B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26BHAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B25/00Hand cutting tools involving disc blades, e.g. motor-driven
    • B26B25/002Motor-driven knives with a rotating annular blade

Definitions

  • the invention relates to a coupling arrangement for a safety shutdown according to the preamble of patent claim 1.
  • Circular knives are used in meat processing for boning, cutting and serging meat pieces from fat and tendons.
  • Such a knife is for example from the DE 600 32 648 D2 known.
  • Knives of this type are exposed to relatively high wear, on the one hand, the edge of the circular blade during use is dull and must be reground and on the other hand, the knife must be cleaned very cleanly at the end of work for hygiene reasons.
  • the blade guide ring is removed from the handle. To be able to do this off the job site, the handle must be previously separated with the drive gear for the knife from the front end of an electrically driven flexible drive shaft.
  • both the blade change and the removal of the guide ring with the handle of the drive shaft is relatively often and should therefore be possible without great expenditure of time, without risk of injury through the knife and without the use of tools.
  • the device In addition to the ease of use on the one hand when changing blades and on the other hand when removing the handle with the guide ring, the device must be very safe to handle, to avoid serious injury from the sharp, rotating at high speed blade. This is achieved in that the knife can only be rotated when the operator presses a lever against the handle or the housing of the handle and thereby connects the knife with the drive shaft only. Once the lever is released, for example, when the operator's knife falls out of the hand or when it no longer tightly encloses the handle for other reasons to interrupt the work, the connection between the rotating blade and the drive shaft is released and thus the drive train interrupted.
  • An object of the present invention is to provide a clutch assembly for a safety shutdown on a drivable by a flexible drive shaft circular blade, which has a simple structure and thus high reliability and which with the existing actuators for the powertrain interruption and the separation of the device from the drive side End of the drive shaft allows.
  • the reference numeral 3 denotes a handle 3, which simultaneously forms a housing 5, on which a head piece 7 of a knife guide ring 8 is attached.
  • the knife guide ring 8 and the knife 10 are attached to the head piece 7.
  • the front end 9 of a flexible drive shaft 11 is visible.
  • the front end 9 is inserted in the tubular interior of the housing 5.
  • a lever 13 is further pivotally mounted about a pivot pin 15.
  • the lever 13 is for example as two-armed lever is formed, wherein at its shorter leg 17, a spring 19 engages the lever 13 when it is not pressed with a force F in the direction of the arrows T + or T- ( FIGS. 1 and 2 ), in a running from the housing 5 at an acute angle unlocking position FIG. 2 swings.
  • the flexible drive shaft 11 is connected to the rear end 21 of a transmission for driving the circular blade 10, that is in engagement.
  • a locking sleeve 23 On the end 9 of the drive shaft 11 is a locking sleeve 23 with a first to the axis of the drive shaft 11 inclined holding surface 25 and a second, perpendicular to the axis of the drive shaft 11 stationary support surface 27 visible.
  • the locking sleeve 23 is secured by a pin 29 against rotation with respect to the jacket 31 of the drive shaft 11.
  • a sleeve 33 On the left side of the locking sleeve 23 is a sleeve 33, in which the string 35 of the drive shaft 11 is rotatably mounted, visible.
  • a coil spring 37 is attached, whose rear end is supported on a collar 39 of the sleeve 33.
  • the front end of the spring 37 is exposed when the drive shaft 31 is removed from the handle 3.
  • a coupling piece 41 inserted and is located on the front flange 43 on the sleeve 33 at.
  • a first bore section 45 has a larger diameter D than the second bore section 47 with diameter d.
  • the second bore portion 47 sits at the front end of a centering tube 49 with a circular cross-section and is frontally connected to a third bore portion 51 of even smaller diameter.
  • the housing 5 thus comprises three sequentially arranged, stepped bore sections 45, 47 and 51.
  • a polygonal hole 53 is formed, in which the front end 55 of the coupling piece 41 is held against rotation when the drive shaft 11th is fully inserted into the handle (position as in FIG. 1 shown). In this position, a tab 57 engages the lever 13 in the first holding surface 25 and is located there with the inclined edge.
  • the displacement of the drive shaft 11 in the handle 3 causes the coupling piece 41 and its front, a hexagonal cross-section end having , slides out of the polygonal hole 53 and thereby the drive train between the further driven drive shaft 11 and the circular blade 10 is interrupted.
  • the drive shaft 11 remains - but held securely held - within the handle 3 (situation in FIG. 2 ).
  • the latter can be removed for cleaning, maintenance and / or blade replacement - free of all drive elements - ( FIG. 5 ).
  • connection of the drive shaft 11 to the handle 3 is in reverse order, i. the drive shaft 11 is inserted from the right into the housing 5 of the handle 3 and engages successively on the retaining portion 59 and then on the tab 57 on the lever 13, whereby the device is brought back into operating condition.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Knives (AREA)
  • Harvester Elements (AREA)
EP20130405005 2012-01-26 2013-01-22 Agencement d'embrayage pour un disjoncteur Active EP2620262B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH00109/12A CH706040A1 (de) 2012-01-26 2012-01-26 Sicherheits-Trennkupplung für Rundmesser.

Publications (2)

Publication Number Publication Date
EP2620262A1 true EP2620262A1 (fr) 2013-07-31
EP2620262B1 EP2620262B1 (fr) 2015-03-11

Family

ID=47664227

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20130405005 Active EP2620262B1 (fr) 2012-01-26 2013-01-22 Agencement d'embrayage pour un disjoncteur

Country Status (3)

Country Link
EP (1) EP2620262B1 (fr)
CH (1) CH706040A1 (fr)
ES (1) ES2535973T3 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1527853A2 (fr) * 1999-10-06 2005-05-04 Bettcher Industries, Inc. Couteau rotatif électrique
DE60032648D1 (de) 1999-10-06 2007-02-08 Bettcher Industries Elektrisch angetriebenes Rundmesser
DE202010005399U1 (de) * 2010-05-07 2010-08-19 Freund Maschinenfabrik Gmbh & Co. Kg Kupplung mit Sicherheitsverriegelung der Antriebswelle eines Handwerkzeugs

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB884387A (en) * 1959-12-02 1961-12-13 Heli Strand Tools Ltd A rotary drive control unit for portable power driven tools
US4894915A (en) * 1986-03-20 1990-01-23 Bettcher Industries, Inc. Cable driven ring blade knife
EP0317715A3 (fr) * 1987-10-02 1990-08-16 Suhner Inter-Trade AG Dispositif et procédé pour accoupler un outil à son entraínement ou bien pour le débrayer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1527853A2 (fr) * 1999-10-06 2005-05-04 Bettcher Industries, Inc. Couteau rotatif électrique
DE60032648D1 (de) 1999-10-06 2007-02-08 Bettcher Industries Elektrisch angetriebenes Rundmesser
DE60032648T2 (de) 1999-10-06 2007-11-15 Bettcher Industries, Inc., Birmingham Elektrisch angetriebenes Rundmesser
DE202010005399U1 (de) * 2010-05-07 2010-08-19 Freund Maschinenfabrik Gmbh & Co. Kg Kupplung mit Sicherheitsverriegelung der Antriebswelle eines Handwerkzeugs

Also Published As

Publication number Publication date
CH706040A1 (de) 2013-07-31
ES2535973T3 (es) 2015-05-19
EP2620262B1 (fr) 2015-03-11

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