Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
  • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
  • B26B3/00—Hand knives with fixed blades

Definitions

• the present invention relates to a knife intended for spreading such foodstuffs as butter, jam and the like.
• the foodstuffs concerned are normally delivered in thin-walled plastic trays, tubs or jar-shaped con ⁇ tainers which are sealed with a lid firmly pressed onto the rim of the tray or tub by snap action.
• the tray rim has a U-shaped cross- section and presents a substantially flat abutment surface with which the lid sealingly abuts, and an outer, downwardly extending edge flange which coacts with an edge flange on the lid in a manner to secure the lid in position.
• butter is removed from the tray with the aid of a knife, which may be made of metal, wood or plastic.
• a knife which is intended particularly for spreading butter, although there is often used a knife taken from the standard assortment of cutlery. In this latter case, the knife is relatively heavy.
• the knife When the butter knife is shared by all seated at the table, the knife is kept in a position which will enable it to be reached by everyone.
• One method is to insert the knife in an upstanding position in the butter, which is possible when the tray or tub is relatively full, but which becomes impossible when the tray begins to be empty of butter. In this latter case, it is usual to place the knife with the handle resting on the table and the blade resting against the edge of the tray. If the knife is heavy, it tends to tip over the tray.
• the object of the invention is to provide a plastic knife for spread ⁇ ing butter and the like which can be placed readily and securely in position adjacent the tray and gripped comfortably in this position and returned thereto subsequent to being used.
• a knife according to the invention which is characterized in that the junction between the blade and the handle has a first transverse wall which constitutes an extension of the inner end of the knife blade and forms substantially a right angle with said blade; in that a second transverse wall forms an extension of the inner end of the handle and lies opposite said first wall; in that the two walls are substantially parallel and spaced from one another and joined by an upper intermediate wall such that the channel is defined by said three walls; in that the vertical extension of the second wall is substantially greater than the vertical extension of the first wall; in that the width of the channel is such as to fit over the edge of standard plastic trays, tubs and jar-shaped foodstuff containers, so as to enable the knife to be hooked onto the rim of the tray or clamped securely thereon in a storage position, with the aid of said channel.
• the inventive knife When the inventive knife is made of plastic, the knife will be light in weight and, consequently, the tilting forces exerted on the rim of the tray at the clamping location will be relatively small.
• Another advantage with plastic knives is that the knives are inexpensive and can be thrown away after use without needing to be washed.
• the knife may alternatively be manu- factured from thin metal plate, e.g. stainless steel.
• the inventive knife is so configured that if the knife is unintentionally placed on the table itself, the knife blade will lie freely above the table surface, irrespective of the side which faces towards the table surface, i.e. the knife will not soil the tablecloth.
• Figure 1 is a top view of an inventive knife.
• Figure 2 is a longitudinal sectional view taken on the line II-II in Figure 1.
• Figure 3 is a side view of the knife with the knife handle resting on the table and the blade spaced from the table surface.
• Figure 4 is a side view of the knife in an inverse position relative to the position shown in Figure 3, with the knife tilted such that the handle is supported against the table in an inclined position and the blade extends obliquely upwards free from the surface of the table.
• Figure 5 is a sectional view of a standard plastic tray or tub and shows the knife in a position adjacent the rim of the tray prior to being clamped firmly to said rim.
• Figure 6 illustrates the knife in a position in which it rests on the rim of the tray before being clamped firmly onto the rim, and shows in chain lines another knife position in which said knife supports against the rim prior to being clamped firmly thereto.
• Figure 7 illustrates the knife when clamped firmly onto the rim of the tray.
• the knife of the illustrated embodiment is made of plastic and comprises a knife blade 10 and a knife handle 12 and a junction 14 between the blade and the handle.
• the handle has a U-section which presents an upper side 16 and two edge flanges 18.
• the blade merges with a first transverse wall 20 which forms substantially a right angle with the knife blade.
• the inner end of the knife handle is extended with a second transverse wall 22 which forms substantially a right angle with the handle and is located at a predetermined distance from the first wall and connected therewith by means of an intermedi ⁇ ate wall 24, such as to form a channel 26.
• the vertical extension of the second wall 22 is sub ⁇ stantially greater than the vertical extension of the first wall 20. In the illustrated case, the vertical extension of the second wall is approximately twice that of the first wall.
• Both of the channel defining walls are planar and substantially parallel with one another, although said walls may also have an arcuate shape with the centre of the arc lying on an axis which is perpendicular to the knife blade, so that the channel can be fitted more readily or to trays or tubs having arcuate edges, such as a cylindrical container.
• the handle is longer than the blade and is heavier than said blade.
• the blade When the knife is lain on a table, as shown in Figure 3, the blade will lie freely over the table surface, so that any butter or the like remaining on the blade will not come into contact with the table or the tablecloth.
• the channel is primarily intended to enable the knife to be clamped or clipped onto the rim of a plastic tray.
• the illustrated plastic tray 28 comprises a bottom 30 and side walls 32 which terminate in a folded rim 34 of substantially U-section.
• the rim will preferbly have a flat upper surface 36, against which the lid (not shown) is intended to sealingly abut.
• the outer flange 38 of the rim is terminated with an outwardly extending edge flange 40, which forms a lid stop when the lid is snapped firmly onto the rim, while pressing-in the resilient outer flange.
• Figure 5 illustrates the knife in a position adjacent the rim of the tray.
• the knife can be brought towards the rim in different ways, as illustrated in Figure 6.
• the full-line illustration in Figure 6 shows the knife in an upwardly tilted position, with the knife blade resting on the rim of the tray and the knife displaced towards the rim to a position in which the right transverse wall 22 is in abutment with the edge flange, said flange forming a stop which determines the position of the knife or the channel in relation to said edge flange.
• the knife may be inclined downwardly when the blade is displaced for- wards on the tray rim, in which case the channel will be located above the rim when the transverse wall 22 is in contact with said rim. This is the position in which the knife can be pressed downwardly as soon as the transverse wall halts the forward movement of the knife.
• the plastic knife is mass produced at a low cost, a number of knives can be placed on the rim of one and the same tray and then discarded after use, instead of washing the knives.
• the inventive knife can be readily punched and shaped from thin metal plate of sufficient rigidity, e.g. stainless steel, without appreciably influencing the advantages afforded by the inventive knife.
• the blade and the handle will weigh approximately the same when the knife is clamped onto the tray rim, although with the handle slightly heavier.

Landscapes

• Life Sciences & Earth Sciences (AREA)
• Forests & Forestry (AREA)
• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Knives (AREA)
• Jellies, Jams, And Syrups (AREA)
• Control And Other Processes For Unpacking Of Materials (AREA)
• Table Equipment (AREA)
• Details Of Rigid Or Semi-Rigid Containers (AREA)
• Food-Manufacturing Devices (AREA)
• Vending Machines For Individual Products (AREA)
• Treatment Of Fiber Materials (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

Family

ID=20377131

Family Applications (1)

Country Status (9)

Families Citing this family (5)

Citations (2)

Family Cites Families (5)

• 1989
  • 1989-10-13 SE SE8903371A patent/SE464748B/sv not_active IP Right Cessation
• 1990
  • 1990-10-12 EP EP90915542A patent/EP0494951B1/en not_active Expired - Lifetime
  • 1990-10-12 AT AT90915542T patent/ATE106302T1/de not_active IP Right Cessation
  • 1990-10-12 DK DK90915542.6T patent/DK0494951T3/da active
  • 1990-10-12 WO PCT/SE1990/000655 patent/WO1991005638A1/en active IP Right Grant
  • 1990-10-12 JP JP2514476A patent/JPH05500916A/ja active Pending
  • 1990-10-12 CA CA002067186A patent/CA2067186A1/en not_active Abandoned
  • 1990-10-12 DE DE69009488T patent/DE69009488T2/de not_active Expired - Fee Related
  • 1990-10-12 US US07/847,110 patent/US5243763A/en not_active Expired - Fee Related

Patent Citations (2)

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