EP0139232A1 - Ustensile manuel électrique avec outil actionné, en particulier appareil de ménage - Google Patents

Ustensile manuel électrique avec outil actionné, en particulier appareil de ménage Download PDF

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Publication number
EP0139232A1
EP0139232A1 EP84111281A EP84111281A EP0139232A1 EP 0139232 A1 EP0139232 A1 EP 0139232A1 EP 84111281 A EP84111281 A EP 84111281A EP 84111281 A EP84111281 A EP 84111281A EP 0139232 A1 EP0139232 A1 EP 0139232A1
Authority
EP
European Patent Office
Prior art keywords
hand
tool according
handle
drive motor
housing
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Withdrawn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
EP84111281A
Other languages
German (de)
English (en)
Inventor
Gimelli Samuel
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.)
ICOMAG TRUST REG
Original Assignee
ICOMAG TRUST REG
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 ICOMAG TRUST REG filed Critical ICOMAG TRUST REG
Publication of EP0139232A1 publication Critical patent/EP0139232A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B7/00—Hand knives with reciprocating motor-driven blades
    • B26B7/005—Counter reciprocating blades

Definitions

  • the invention relates to an electric hand-held device with a driven tool, in particular a household appliance, such as a kitchen knife, according to the preamble of claim 1.
  • an electric motor is installed in a housing provided with a handle, which can be connected to the electric power network via an electric cable.
  • a gear driven by the motor converts the motor rotation into a translatory back and forth movement for the knife blades used in a blade holder.
  • the motor is in a known device (DE-U-79 32 967) in an extension of the knife blades in a housing designed as a handle. Since a gearbox is still required between the motor and the knife blades, the result is a relatively long housing, which makes the knife bulky.
  • This electric knife can only be operated by means of a mains connection and the electrical cable required for this considerably limits its use and mobility.
  • AC power devices do not meet general security needs.
  • the handle part in the immediate extension of the knife blades becomes a familiar one, which essentially corresponds to a common Pand knife and thus cheap guidance of the electric knife and also an appropriate housing of the motor and the gearbox guaranteed.
  • the handle part of this housing is particularly suitable for the installation of a set of rechargeable batteries and, if appropriate, a charging device, in order in this way to create a cordless hand-held device which can be used at any point regardless of the power supply.
  • a switch-on fuse according to the invention prevents in an extremely simple manner an unintentional starting of the knife and a resulting risk of injury. Occupational safety is increased above all by the fact that switching on the device requires both hands and that when the device is started they cannot be in the effective range of the knives.
  • the electric knife shown comprises a suitably longitudinally divisible housing 1 with a blade guide 2, in which a blade holder 3 for, for example, two knife blades 4 movable relative to one another is mounted.
  • the housing is formed on the rear side facing away from the knife blades to form an approximately cylindrical handle bar 6, which can be gripped easily by one hand and is suitably equipped with a surface ribbing 7. Its side surfaces 8 can also be flattened (Fig. 3).
  • the housing enlarges to form a drive chamber 10, the bottom surface 11 of which, however, extends approximately in a straight extension to the bottom surface 12 of the handle bar, while the handle surface 13 merges into the raised ceiling surface 15 of the drive chamber via a desk-like inclined surface 14.
  • the blade holder 3 which is displaceable in the blade guide 2, has at its rear end a link guide 17 into which an eccentric pin 18 of a worm wheel 19 engages.
  • the worm wheel is driven by an overhead cylindrical worm 20 of a drive motor 22.
  • the motor is housed directly above the blade guide 2 in the drive chamber.
  • a bearing base 23 is formed in each housing half, to which two switching terminals 25, 26 are also attached.
  • the former is conductively connected to a battery set 28 via a connecting cable 27, while the other terminal is connected to the motor.
  • an inductive charging device 31 is installed in the handle bar end 30.
  • a holding spring for the knife blades is designated 48. As shown in FIG.
  • a pressure switch 36 is inserted in an opening 35 in the desk-like inclined surface 14 of the housing and can be pressed down against a compression spring 37.
  • This compression spring is supported on the one hand inside this pressure switch and on the other hand in a bottom insert 38.
  • a pressure bar 40 protrudes from the pressure switch, which, when depressed (dashed), depresses the switching terminal 26, brings it into contact with the switching terminal 25 and thereby closes the current flow to the motor.
  • a bevel stop 42 for a locking bolt 43 is formed on a collar 41 of the pressure switch 36, which protrudes from a release button 45. This release button can be pressed against a compression spring 47 in a guide 46 in the ceiling surface 15.
  • the pressure switch 36 can also be depressed to close the circuit. Because the pressure switch in the depressed position with its collar 41 overlaps the locking bolt 43 (dashed line), the release button also remains in its down position until the pressure switch is released, whereupon the compression spring 47 also returns the release button to the starting position, in which it in turn Pressure switch 36 blocked.
  • the pressure switch 36 and the release button 45 are not arranged close to one another, but rather at a distance from one another and above all in different planes. It follows that the two push buttons can only be operated by two hands. In order to switch on the electric knife, the release button 45 must first be actuated with the free hand and then the pressure switch 36 with the thumb of the other hand clasping the handle.
  • the invention is not limited to the illustrated embodiment.
  • the handy and relatively small housing can also be used with advantage in connection with a cable connection, with the cable entry and retention then being provided in the handle bar.
  • a plug connection can also be formed at the end of the handle bar if a separate battery charger is to be used.
  • the assignment of the pressure switch 36 and the release button 45 is not limited to the illustration shown, but the pressure switch can also have other inclinations up to the vertical position for triggering take button. If the two organs move in the 90 ° angular position to one another, then a receiving space (not designated) must be present in the pressure switch, into which the locking bolt can engage in the depressed position. If the pressure switch 36 is located in a surface that is roughly the same as the handle, the trigger button is accommodated on a surface that is angled away from it and that can lie both in alignment with the handle axis, for example on the front face of the housing, and on one side of the housing, in order to achieve the above-described interaction to ensure the two switching elements.
  • the stop bevel 42 will vary in its inclination according to the angular position of the two switching elements.
  • the locking bolt 43 can also be chamfered at its end. If the two switching elements are not secured against rotation, it is advisable to extend both the stop surface and the locking bolt to a larger circumferential area.
  • the pressure switch can also be equipped with another contact element.
  • the pressure switch secured according to the invention by a release button can also be provided on electrical devices with other housing shapes, with or without a cable connection, if only the corresponding assignment of the two push buttons is guaranteed.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Knives (AREA)
EP84111281A 1983-10-12 1984-09-21 Ustensile manuel électrique avec outil actionné, en particulier appareil de ménage Withdrawn EP0139232A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3337167 1983-10-12
DE19833337167 DE3337167A1 (de) 1983-10-12 1983-10-12 Elektrisch betriebenes handmesser, insbesondere fuer den haushalt

Publications (1)

Publication Number Publication Date
EP0139232A1 true EP0139232A1 (fr) 1985-05-02

Family

ID=6211678

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84111281A Withdrawn EP0139232A1 (fr) 1983-10-12 1984-09-21 Ustensile manuel électrique avec outil actionné, en particulier appareil de ménage

Country Status (2)

Country Link
EP (1) EP0139232A1 (fr)
DE (1) DE3337167A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996007514A1 (fr) * 1994-09-07 1996-03-14 Soederlind Jan Instrument de degraissage et de tranchage

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3203096A (en) * 1963-07-29 1965-08-31 Gen Electric Electric slicing knife
US3337954A (en) * 1965-10-18 1967-08-29 Dominion Electric Corp Electric driving unit for operating a knife or the like
US3650029A (en) * 1970-05-04 1972-03-21 Mc Graw Edison Co Electric knife blade securing and safety switch device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3300857A (en) * 1964-08-28 1967-01-31 Dominion Electric Corp Driving unit for electric knife
DE7932967U1 (de) * 1979-11-22 1980-03-06 Schobesberger, Guenter, 8390 Passau Elektrisches messer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3203096A (en) * 1963-07-29 1965-08-31 Gen Electric Electric slicing knife
US3337954A (en) * 1965-10-18 1967-08-29 Dominion Electric Corp Electric driving unit for operating a knife or the like
US3650029A (en) * 1970-05-04 1972-03-21 Mc Graw Edison Co Electric knife blade securing and safety switch device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996007514A1 (fr) * 1994-09-07 1996-03-14 Soederlind Jan Instrument de degraissage et de tranchage

Also Published As

Publication number Publication date
DE3337167A1 (de) 1985-04-25

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): CH FR GB IT LI NL

17P Request for examination filed

Effective date: 19851008

17Q First examination report despatched

Effective date: 19861202

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19871110

RIN1 Information on inventor provided before grant (corrected)

Inventor name: SAMUEL, GIMELLI