WO1992020498A1 - Fleischmesser - Google Patents
Fleischmesser Download PDFInfo
- Publication number
- WO1992020498A1 WO1992020498A1 PCT/EP1992/001019 EP9201019W WO9220498A1 WO 1992020498 A1 WO1992020498 A1 WO 1992020498A1 EP 9201019 W EP9201019 W EP 9201019W WO 9220498 A1 WO9220498 A1 WO 9220498A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- guide
- blades
- knife according
- meat knife
- meat
- Prior art date
Links
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 a meat knife with two in a guide on the back of the blade and laterally covered, mutually movable, toothed blades, which can be driven by a motor via at least one eccentric and one drive lever.
- FR-PS 663 033 From FR-PS 663 033 it is also known to provide two mutually displaceable blades with parallel longitudinal slots and to guide them through a guide screw which is guided transversely through the slots.
- the guide screw must be unscrewed to change the knife.
- the guidance is practically only by a line contact, which is associated with high material stress and wear.
- the present invention has for its object a meat knife of the above. Type in such a way that a simple blade change is possible with good wear-free blade guidance while loosening as few parts as possible.
- the invention provides that the two blades each have at least one guide slot parallel to the back of the blade, which is penetrated by a guide part penetrating both blades, and that the two blades together with the guide part or parts can be inserted into the guide from the front are, and that in the guide to the knife tip open guide grooves for the or the guide parts are provided.
- the guide can be made practically in one piece with a U-shaped cross-section, and can therefore be light and slim with particularly little material.
- the length of the guide slots in the blades is greater than twice the blade stroke plus guide part length, so that the guide part does not abut the ends of the guide slots during the lifting movement and thus does not have to move in any way when using the knife.
- the guide part or the guide parts are arranged symmetrically to the two blades, so that the forces acting on the guide part cancel each other out when using the meat knife, at least in the direction of the lifting movement of the blades, that is to say no free forces act in the longitudinal direction of the guide part.
- the guide part can have a circular cross section and also adjusts the guide grooves of the guide which is U-shaped in cross section.
- the guide part can preferably be held in the guide by an elastic ring, but can be guided axially displaceably with little resistance, the elastic ring being arranged in an annular groove of the guide part.
- the replacement of the blades can be particularly advantageously facilitated in that the ends thereof each have a receiving slot open towards the back of the blade for the free end of the associated drive lever. This enables the drive lever-blade to be coupled simply by hanging or unhooking the free end of the drive lever in the upwardly open receiving slot in the blade.
- the free end accommodated in the receiving slot can be formed in a weight-saving manner by a cross bolt which is fastened in the drive lever.
- the drive levers themselves can be mounted on a double eccentric shaft, preferably via needle bearings, and the double eccentric shaft can be driven via a bevel pinion.
- a particularly simple, rapid replacement of the blades can be made possible in that at least one permanent magnet is provided fixed to the housing opposite the open receiving slots of the blades, by means of which the free end of the drive lever is held in the open slot of the blade.
- FIG. 1 shows a longitudinal section through a meat knife
- Figure 2 shows a partial section along the line II-II of
- FIGS. 1 to 3 The only exemplary embodiment of a butcher knife shown in FIGS. 1 to 3 essentially has two blades 2, 2 'which are guided in a cross-sectionally U-shaped guide 1 and which each have a double eccentric shaft 4 via a drive lever 3, 3' Bevel pinion 5 and a drive shaft 6 can be driven via a compressed air vane motor 7.
- the two blades 2, 2 ' have guide slots 9, 9' which run parallel to the blade back 8 and in the exemplary embodiment extend almost over the entire length of the blade.
- these guide slots 9, 9 ' is a needle-shaped guide part 10 is used, which has a circular cross section, the diameter being greater than the total thickness of the two blades 2, 2 ', as can be seen in particular from FIG.
- guide 1 with corresponding dimensions, two guide grooves 11, 11 'are arranged opposite, which are open towards the knife tip 12, so that the two blades 2, 2', together with the guide part 10 from the knife tip -12, into the guide 1 can be pushed in or pulled out, especially for changing blades or for cleaning.
- the length of the guide slots 9, 9 ' is greater than the length of the guide member 10 plus twice the blade stroke, so that the ends of the guide member 10 do not come into contact with the ends of the guide slots 9, 9' during operation of the knife.
- elastic rings 14, 14 ' are provided in ring grooves 13, 13' of the guide part 10.
- the two blades 2, 2 ' have receiving slots 15, 15' which are open towards the blade back 8 and in which the free end of one of the drive levers 3, 3 'is received.
- the ends of the drive levers 3, 3 'received in the receiving slots 15, 15' of the blades 2, 2 ' are each by a cross bolt 16, 16 'is formed, which is fastened in the associated drive lever 3 or 3'.
- the drive levers 3, 3 ' are mounted on the double eccentric shaft 4 in the manner of connecting rods via needle bearings 17, 17', which in turn can be supplied with a lubricant via lubrication channels 18.
- the double eccentric shaft 4 is mounted in the housing 20 via ball bearings 19, 19 'and its drive device is selected such that the transverse bolts 16, 16' of the drive lever 3.3 'are pressed into the receiving slots 15, 15' of the blades 2.2 'during operation become.
- At least one permanent magnet 21 is provided in the housing 20, opposite the receiving slots 15, 15 ', through which the Cross bolts 16, 16 'are drawn into the receiving slots 15, 15', so that a non-positive coupling of the blades 2, 2 'with their drive levers 3, 3' takes place.
- a decoupling opening 22 is provided in the housing 20, which is closed by a cover 23 and a sealing ring 24.
- a securing projection 25 projecting beyond the receiving slots 15, 15 ′ can also be provided on the cover 23, as is indicated by the dash-dotted lines in FIG. 2.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Knives (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4509169A JPH07501229A (ja) | 1991-05-15 | 1992-05-09 | 肉切り包丁 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP4115768.0 | 1991-05-15 | ||
DE19914115768 DE4115768A1 (de) | 1991-05-15 | 1991-05-15 | Fleischmesser |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1992020498A1 true WO1992020498A1 (de) | 1992-11-26 |
Family
ID=6431659
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1992/001019 WO1992020498A1 (de) | 1991-05-15 | 1992-05-09 | Fleischmesser |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0584139A1 (de) |
JP (1) | JPH07501229A (de) |
DE (1) | DE4115768A1 (de) |
WO (1) | WO1992020498A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012011546A1 (de) * | 2012-06-09 | 2013-12-12 | Andreas Stihl Ag & Co. Kg | "Handgeführtes Arbeitsgerät" |
JP7007072B1 (ja) * | 2020-09-03 | 2022-01-24 | 英彌 橋爪 | 電動包丁 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE606340C (de) * | 1934-11-30 | Julius Geiger G M B H | Enthaeutungsvorrichtung | |
US2005862A (en) * | 1933-05-09 | 1935-06-25 | Richard C Johnsen | Hedge trimming device |
US3014276A (en) * | 1957-11-01 | 1961-12-26 | James J Prohaska | Skinning knife |
US3234649A (en) * | 1964-03-13 | 1966-02-15 | Gen Slicing Machine Co Inc | Twin-blade releasing means |
DE1965202A1 (de) * | 1969-12-27 | 1971-07-15 | Schmid & Wezel | Messer zum Knochenentfleischen u.dgl. |
DE2009242A1 (en) * | 1970-02-27 | 1971-09-09 | Schmid & Wezel, 7133 Maulbronn | Slaughterer's knife |
EP0311793A1 (de) * | 1987-09-15 | 1989-04-19 | Georg Krause | Schneidgerät mit Fremdkraftantrieb |
-
1991
- 1991-05-15 DE DE19914115768 patent/DE4115768A1/de not_active Ceased
-
1992
- 1992-05-09 JP JP4509169A patent/JPH07501229A/ja active Pending
- 1992-05-09 WO PCT/EP1992/001019 patent/WO1992020498A1/de not_active Application Discontinuation
- 1992-05-09 EP EP92909779A patent/EP0584139A1/de not_active Withdrawn
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE606340C (de) * | 1934-11-30 | Julius Geiger G M B H | Enthaeutungsvorrichtung | |
US2005862A (en) * | 1933-05-09 | 1935-06-25 | Richard C Johnsen | Hedge trimming device |
US3014276A (en) * | 1957-11-01 | 1961-12-26 | James J Prohaska | Skinning knife |
US3234649A (en) * | 1964-03-13 | 1966-02-15 | Gen Slicing Machine Co Inc | Twin-blade releasing means |
DE1965202A1 (de) * | 1969-12-27 | 1971-07-15 | Schmid & Wezel | Messer zum Knochenentfleischen u.dgl. |
DE2009242A1 (en) * | 1970-02-27 | 1971-09-09 | Schmid & Wezel, 7133 Maulbronn | Slaughterer's knife |
EP0311793A1 (de) * | 1987-09-15 | 1989-04-19 | Georg Krause | Schneidgerät mit Fremdkraftantrieb |
Also Published As
Publication number | Publication date |
---|---|
JPH07501229A (ja) | 1995-02-09 |
DE4115768A1 (de) | 1992-11-19 |
EP0584139A1 (de) | 1994-03-02 |
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