Classifications

• • 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
  • B26B11/008—Hand knives combined with other implements, e.g. with corkscrew, with scissors, with writing implement comprising electronic or electrical features, e.g. illuminating means, computing devices or sensors
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
  • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
  • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
  • B25B23/18—Devices for illuminating the head of the screw or the nut

Definitions

• the present invention relates to a tool, such as a knife, having a built-in ligh source, intended for use in hunting, fishing etc.
• the invention also relates to a blade cover for the tool, having a reflector, translucent from the inside.
• TECHNICAL BACKGROUND Tools such as knives of different kinds and different makes, are manufactured and have been manufactured from time immemorial. Those knives, especially being of interest in the present connection, are knives having fixed hand grips, such as poniards, case-knives and certain bayonet models.
• the handles of the above mentioned knife models are often made in different shapes and a great number of them disclose completely artistic shapes. Lately, manufacturers have begun manufacturing the handles for more practical purposes, e.g. there are cork handles for fish-knives so that they rise to the surface, and for hunting purpose there are strongly red and yellow coloured handles so that they are easily discovered in grass and leaves. There is a big problem in e.g.
• a knife provided with a light bulb is previously known.
• the bulb is here not placed at the centre of the blade but is underneath it.
• the reflective effect of the blade is not utilized for improving the light, but instead the blade shades the light in certain directions, resulting in that, when using it, you cannot be sure to have the desired place illuminated. Since the light is in the handle instead of in the blade holder as according to our invention there is a risk of oneself shading the light when using it.
• an object of the present invention is to provide a tool, such as a knife, which is practically designed for use in working, hunting, fishing etc., especially for using during the dark hours of the day, at dawn or at dusk, or when working where the space is limited.
• a tool such as a knife, comprising a blade having a blade holder and a handle having a back, the handle comprising a cavity, in which there is a part of a light source and a current source, and in which the remaining part of the light source is in the blade holder which is in shape of a tube.
• the tool is preferably of the fixed hand grip type.
• the tool can also comprise a blade cover, provided with a translucent reflector.
• the tool In hunting and also fishing, the tool is used in the form of a knife, generally at dawn or at dusk, when it is comparatively dark and hence, the present invention is a great help.
• the problem in gutting carcasses of big animals is solved by the present invention in that the light source is built-in in the knife.
• the knife When put aside or dropped in leaves or grass, the knife is easily found, thanks to the built-in light source, and besides, the knife is easily grabbed in a correct manner, since the knife handle is grabbed behind the light beam.
• the blade cover having a translucent reflector the knife can also be used as a torch, helping to find the way. Without the blade cover, walking with a sharp forwarded knife can be somewhat hazardous, since other hunting participants can easily be hurt.
• Fig. 1 shows in cross-section a tool in the form of a knife having a built-in light source according to the present invention.
• Fig. 2 shows the attachment of the light source to the blade of the embodiment according to Fig. 1.
• Fig. 3 shows an insert intended to be inserted into the handle in assembling the tool.
• Figs. 4 and 5 show examples of different accessories to be attached to the handle according to the present invention, instead of the knife blade previously disclosed.
• Fig. 6 shows an example of a blade cover for the tool according to the present invention.
• DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tool having a built-in light source.
• a tool 1 comprising a handle 6 and a tool blade 2, is shown here in the form of a knife blade having a suitably shaped knife edge 3 and a bevel 4.
• the blade 2 has furthermore a tube-shaped holder 16 for attachment to the handle 6, serving as a tool holder.
• a part of a light generating unit 8 is provided, consisting of a lens 7 directed towards the blade and a reflector 9 having an orifice 20 directed towards the handle 6.
• a cavity 5 to receive an insert 19, provided with the remaining part of the light generating unit 8 in the form of a light bulb 10 and a current source 11, here in the form of a halogen lamp and two batteries.
• Rearmost of the handle 6 is a removable back 13 having buttons 12 for switching on and off the current.
• the blade 2 is preferably removably mounted to the handle 6, but since this is not part of the present invention it is not shown in more detail how this mounting is arranged.
• the light generating unit 8 is formed, consisting of the lens 7, the reflector 9 and the light bulb 10, receiving its current supply from the current source 11.
• the light generating unit 8 being positioned centrally in the tube-shaped blade holder 16, both sides of the blade 2 are illuminated, furthermore serving as an additional reflector due to its shiny surfaces.
• the blade 2 on both sides, is provided with bevels 4 adjacent to the blade holder 16.
• the insert 19 the front portion of which consists of the light bulb 10, is pushed into the cavity 5 of the handle 6. Then batteries, or any other current source, are pushed into the insert, and rearmost of the handle end the back 13 is attached with associated switch buttons 12.
• the switch buttons 12 can also be fixed for example to the side of the handle 6.
• the current supply can also be arranged in another way, for example through accumulators or solar cells, charging an accumulator.
• the cord of an accumulator can e.g. be connected to a car.
• a sealing (not shown) is arranged between the handle 6 and the knife blade 2 to waterproof the tool. The sealing can be done in many well known ways, for example by means of an 0-ring or by applying a rubber or plastic coating.
• the light bulb 10 in the shown embodiment is a halogen lamp, but also other types of lamps can be used.
• the light source 8 By centrally placing the light source 8 the light is always where needed, namely in the working area of the tool 1 and on both sides of the blade 2.
• Figs. 4 and 5 there are shown as examples two different types of blades 14, 15, which can be used instead of the knife blade 2 described in connection with the preceding figures. These blades too have bevels 4.
• the blade 14 in Fig. 4 is a saw blade and the blade 15 in Fig. 5 is a game belly opener.
• the blade 2 is not limited to comprising only an edged blade, but the blade can also be a screw-driver, a box-spanner or the like.
• Fig. 6 shows an example of a blade cover 17 provided with a translucent reflector 18.
• the reflector 18 transmits an amount of light sufficient for the tool 1 to be used as a torch and also in this case the blade 2 serves as an extra reflector, giving a fine light effect.
• the blade cover 17 is principally intended for a blade 2 having an edge 3 but similar means can also be used for other types of tool blades or bits.- Even if we have here described a tool 1 having a removable blade 2, it is of course possible in a corresponding way to place a light source in a tool, such as a knife, in which the blade is fixedly mounted.

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Publications (1)

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ID=8200662

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Citations (5)

• 1988
  • 1988-02-24 EP EP88850066A patent/EP0306461A1/de not_active Withdrawn
• 1989
  • 1989-02-23 WO PCT/SE1989/000076 patent/WO1989008013A1/en unknown
  • 1989-02-23 AU AU31989/89A patent/AU3198989A/en not_active Abandoned

Patent Citations (5)

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