EP0959747A1 - Werkzeug, insbesondere messer - Google Patents
Werkzeug, insbesondere messerInfo
- Publication number
- EP0959747A1 EP0959747A1 EP97938894A EP97938894A EP0959747A1 EP 0959747 A1 EP0959747 A1 EP 0959747A1 EP 97938894 A EP97938894 A EP 97938894A EP 97938894 A EP97938894 A EP 97938894A EP 0959747 A1 EP0959747 A1 EP 0959747A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spring element
- knife
- blade
- knife according
- handle
- 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- Withdrawn
Links
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47G—HOUSEHOLD OR TABLE EQUIPMENT
- A47G21/00—Table-ware
- A47G21/06—Combined or separable sets of table-service utensils; Oyster knives with openers; Fish servers with means for removing bones
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47G—HOUSEHOLD OR TABLE EQUIPMENT
- A47G21/00—Table-ware
- A47G21/10—Sugar tongs; Asparagus tongs; Other food tongs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B11/00—Hand knives combined with other implements, e.g. with corkscrew, with scissors, with writing implement
Definitions
- the present invention relates to a tool, in particular a knife, consisting of a blade and a handle part.
- Knives have long been known in human development. Since then, the knife has been repeatedly adapted to special areas of application and its handling and external design have been improved. A large number of knives are also known in the field of cutlery, so that they can also be used as a useful tool depending on the particular food and the eating culture.
- the present invention is explained below using the example of a knife that serves as a tool for separating food in a cutlery.
- a combination of knife and fork has established itself as a cutlery in the eating culture of Europe.
- the fork takes on the task of placing the food on a plate, e.g. holding a piece of meat and leading separated parts of it to your mouth or selecting different parts on the plate.
- the knife is used for cutting and pushing the food on the plate.
- problems occur when the bite-sized preparation of the food requires, for example, the removal of pieces of skin, or the removal of sturgeon bodies and in particular small pieces of bone or bones.
- German patent application 31 28 902.9 the idea is known to use tweezers for fish cutlery instead of a fish knife, which tweezers are primarily used to remove skin flaps, fish scales or fish bones.
- the idea disclosed in German utility model GM 73 35 946 of using a tong-like device with two specially shaped gripping jaws for loosening meat from the bones of, for example, a roasted chicken takes a similar approach.
- this device also replaces the knife, since a chicken still has to be held when the meat is removed.
- the tool according to the invention also consists of the familiar basic elements, handle part and blade, which, however, are expanded by a spring element.
- the spring element is fastened in the region of the handle part in such a way that its free end is spread apart by the actual knife.
- the tool can be used for gripping small objects, since a gripper-like device is formed by the arrangement according to the invention.
- the spring element is elongated and in particular runs partially arcuate, so that overall a suitable spring force for closing and opening the gripper independently can be built up.
- the length of the spring element is preferably adapted to the length of the actual knife, so that when the gripper is closed, the free end of the spring element comes into contact with the tip of the blade and, in particular, has the same length.
- a particularly simple technical solution results from the fact that a part in the form of an arm of tweezers of the appropriate size is used as the spring element. With regard to the stress and durability, the materials known for the production of tweezers can be used. Furthermore, when gripping small objects, it is advantageous if the opposite areas of the blade and the spring element each have a congruent contour. Thus, the free end pieces of the knife and the spring element match in length and shape.
- the spring element is advantageously fastened in the region of the lower free end of the handle part, so that the gripper can be operated with a finger of the hand with which the tool is guided.
- the spring travel can be chosen large enough as the free path of the spring element between the attachment point and the force application point, here by the pressure of the finger, in order to achieve a previously adjustable spring stiffness.
- the tool according to the invention can also be constructed in several parts, in that the knife forms a unit or the spring element can be fastened in or on the knife by insertion or any other shape.
- the claims 6-9 principally mention possible forms of connection up to the one-piece connection of the two above-mentioned units knife and spring element. At this point I would like to demonstrate the technical feasibility of the the following description of exemplary embodiments of the invention is made with reference to the figures.
- the arrangement is advantageously designed in such a way that the gripper, which is built up between the spring element and the knife consisting of the blade and the grip part, is in a normal section of the arrangement by the hand of the user against the spring force of the spring element with one finger, preferably by thumb or index finger of the right one Hand that is closable.
- a spring force is built up as a counter reaction, which then serves to automatically open the gripper.
- the knife according to the invention also serves as a pushing aid when picking up food items e.g. on the fork.
- This sliding function naturally also facilitates selection and is improved according to claim 15 in that the blade is made wider or bulbous, as will be explained in more detail with reference to the drawings below.
- the tool according to the invention is used as a fish knife, preferably with a partially sharpened cutting edge.
- the familiar fish knife is only in its shape and handling changed slightly.
- a new function has been added that offers great advantages when it comes to finding and sorting bones.
- the spring element is designed as an extension part that can be attached to existing fish knives. Considerable demand is expected for this embodiment of the present invention, since retrofitting can always be cheaper than buying a new one.
- FIG. 1 a shows a side view of a first embodiment of a fish knife
- Fig. Lb is a plan view of the embodiment of
- FIG. 2a shows a side view of a detail from FIG. 1b in a further embodiment
- FIG. 2b shows a side view of a further embodiment of the detail from FIG. 1b;
- 3a shows a plan view of the end of a handle piece in a further embodiment
- 3b is a plan view of the end of a spring element in a further embodiment to match the handle of Fig. 3a, - 6 -
- Figure 3c is a side view of the handle of Figure 3a;
- Figure 3d is a side view of the parts of Figures 3a and 3b in the assembled state
- FIG. 4a shows a side view of a further embodiment of a fish knife
- FIG. 4b is a top view of a fish knife from FIG. 4a;
- 5a is a side view of a fish knife
- 5b is a side view of an embodiment of a retrofittable spring element, *
- FIG. 6a shows a side view of a further embodiment of a retrofittable spring element
- Fig. 6b is a plan view of the spring element of Fig. 6a.
- Fig. La shows a knife 1 in a side view.
- a spring element 4 is arranged on the outside of the unit consisting of blade 2 and handle part 3 such that the free end 5 of the blade 2 and the free end 6 of the spring element 4 form a gripper.
- the force required for this is exerted, for example, on a contact surface 8 with a normal holding of the knife 1 of one hand by a finger 9, preferably the index finger of the right hand.
- the gripper After relieving the spring element 4, the gripper automatically opens again due to the spring return force and the object selected with the knife 1 is released.
- the blade 2 is also when using this knife Fish knife sharpened in area a of the cutting edge to make it easier to open or separate the skin of a fish.
- the dashed line x in FIG. 1 a shows the preferred bulbous shape of a blade 2 for use in a knife 1 according to the invention.
- the enlarged free area of the blade 2 further improves the properties of the knife as a pushing aid, especially during the selection process and the conveying of food pieces onto a fork.
- the blade 2, which is wider than average meat knives, can also facilitate cutting with the knife according to the invention.
- Fig. Lb shows the structure of the knife 1 in a plan view. This clearly shows that the spring element 4 ends at its end 6 with the end 5 of the blade 2 in order to form a secure gripper even for small or very fine objects.
- the spring element is very elongated and only attached to the end 10 of the handle 3. Together with the overall slightly curved shape, the ease of use of the gripper is thus ensured solely by a finger 9 with an appropriate spring stiffness that can be adjusted during manufacture.
- FIGS. 2a-3d show different forms of fastening a spring element 4 to the handle part 3 as alternatives to the one-piece variant shown in FIGS. 1a and 1b.
- Fig. 2a the spring element 4 is glued to the handle part 3, soldered and / or rigidly connected by another connection 11, for example on a bolt or rivet basis.
- Fig. 2b represents the one possibility of articulation of the spring element 4 on the handle hurry 3.
- the spring element 4 encloses the handle part 3 with a specially shaped end piece 4a. The fastening and articulation is carried out via a bolt 11a.
- FIGS. 3a-3d the idea of articulation is developed into a flexible design that can be separated into two parts.
- a pin 12 is inserted on a web 13 of the spring element 4 through slots 14 into a bore 15 of the handle part 3.
- the pin 12 has a round cross section with opposing flats.
- the spring element used cannot separate or detach from the handle 3 in the position of use.
- Fig. La and lb represents a knife in which the direction of movement of the spring element 4 is preferably directed perpendicular to the plane of the blade 2.
- the spring element 4 is attached, on a top view of the back 16 of the blade 2, on the outside to the right of the blade 2.
- the arrangement to the left of the blade 2 is also possible.
- 4a shows a further possibility of a knife 1 in side view, the spring element 4 of which has a direction of movement running parallel to the plane of the blade 2, which lies in particular in the plane of the blade 2.
- the usable part of the gripper is thus formed between the spring element 4 and the back 16 of the blade 2.
- FIG. 5a shows a conventional knife 1 outlined in FIG. 5a.
- 5b shows a fastening unit 17 adapted to the end 10 of the handle part 3.
- a fastening unit 17 consists, for example, of a tapered sleeve 18 closed on one side. On its open side, the sleeve 18 runs out into a spring element 4, as shown in FIG. 5b.
- An alternative design of a fastening unit 17 is shown in a side view in FIG. 6a.
- a slotted sleeve 19 which is open on both sides is formed by two arms which, when used, enclose the handle part. Opposite the slot 20, this fastening unit 17 again runs into a spring element 4.
- FIGS. 5b and 6a-6b allow retrofitting by simply plugging in and clamping, which can be made permanent by soldering or gluing.
- all known knives made from cutlery can thus be retrofitted analogously to the knives shown in FIGS.
- a spring element in contrast to the spring element 4 which laterally engages the knife, is arranged beyond the back of the knife, so that a gripping movement takes place essentially in the plane of the blade.
- a knife blade and a spring element are designed in such a way that a contact surface between the blade and the spring element results when the spring element is actuated.
- the contact surface starts from the head end of the blade and extends over a distance of approx. 1-2 cm towards the opposite end of the knife.
- the spring element has a web which extends essentially parallel to the longitudinal axis of the knife.
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 |
---|---|---|---|
DE29724464U DE29724464U1 (de) | 1996-08-12 | 1997-08-12 | Werkzeug, insbesondere Messer |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19632505 | 1996-08-12 | ||
DE1996132505 DE19632505A1 (de) | 1996-08-12 | 1996-08-12 | Werkzeug, insbesondere Messer |
PCT/EP1997/004375 WO1998006307A1 (de) | 1996-08-12 | 1997-08-12 | Werkzeug, insbesondere messer |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0959747A1 true EP0959747A1 (de) | 1999-12-01 |
Family
ID=7802443
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97938894A Withdrawn EP0959747A1 (de) | 1996-08-12 | 1997-08-12 | Werkzeug, insbesondere messer |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0959747A1 (de) |
DE (1) | DE19632505A1 (de) |
WO (1) | WO1998006307A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29922266U1 (de) | 1999-12-18 | 2000-03-09 | Rosenberg, Wolf-Dieter, 80689 München | Fischmesser |
JP4968501B2 (ja) * | 2005-03-23 | 2012-07-04 | 孝彦 上田 | ナイフトング |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE454132C (de) * | 1927-12-31 | Ferdinand Schindler | Fischmesser mit Einrichtung zum Herausziehen von Graeten | |
DE507564C (de) * | 1928-11-09 | 1930-09-18 | Leo Baetzel Fa | Messer, insbesondere Fischmesser |
CH519323A (de) * | 1971-01-18 | 1972-02-29 | Frank Hermann | Fischmesser |
FR2379271A1 (fr) * | 1977-02-04 | 1978-09-01 | Chardon Bernard | Dispositif pour detacher et enlever la peau d'un poisson prepare, notamment " pince a poisson " |
DE3803449A1 (de) * | 1988-02-05 | 1989-08-17 | Helmut Dipl Ing Baldus | Messer, insbesondere kuechenmesser |
DE4021022C2 (de) * | 1990-07-02 | 1994-08-04 | Manfred Dipl Ing Ortwein | Vorrichtung zum Erfassen von Gegenständen |
DE29514450U1 (de) * | 1995-04-24 | 1996-01-11 | Rönn, Thomas von, 22147 Hamburg | Messer |
-
1996
- 1996-08-12 DE DE1996132505 patent/DE19632505A1/de not_active Withdrawn
-
1997
- 1997-08-12 EP EP97938894A patent/EP0959747A1/de not_active Withdrawn
- 1997-08-12 WO PCT/EP1997/004375 patent/WO1998006307A1/de not_active Application Discontinuation
Non-Patent Citations (1)
Title |
---|
See references of WO9806307A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE19632505A1 (de) | 1998-02-19 |
WO1998006307A1 (de) | 1998-02-19 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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17P | Request for examination filed |
Effective date: 19990303 |
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AK | Designated contracting states |
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AX | Request for extension of the european patent |
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GRAG | Despatch of communication of intention to grant |
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17Q | First examination report despatched |
Effective date: 20000329 |
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GRAH | Despatch of communication of intention to grant a patent |
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STAA | Information on the status of an ep patent application or granted ep patent |
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18D | Application deemed to be withdrawn |
Effective date: 20001129 |