Cutlery – Holders for detachable blades – Interlocked blade and holder
Patent
1980-12-17
1983-06-28
Yost, Frank T.
Cutlery
Holders for detachable blades
Interlocked blade and holder
30339, B25G 328
Patent
active
043897789
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a device for a knife handle which is provided with a detachable knife blade. More specifically, the invention relates to a device for those knife handles in which at least one spring member is fitted which is adapted to engage securely in a hole a countersinking or the like in the knife blade with at least one hook or the like.
BACKGROUND ART
Previously known knives constructed in the manner indicated above are intended primarily for cutting out carpets or for other work where the knife blade is exposed to severe wear. The idea in this case is that the knife blade can be of comparatively low quality if the securing in the knife handle is such that the blade only permits a cutting function. Usually the knife blade is mounted in the handle in such a manner that only a small cutting edge projects. The knife blade is then not exposed to such great flexural stresses and so does not risk breaking. These known knives are not suitable, however, for such fields of application as hunting, fishing, wood-carving etc. for example. The knife blade for these fields of application must be of good quality, have one or two long cutting edges and withstand chopping, stabbing, sawing and prizing loose. It is also important that the securing of the knife blade in the handle should be stable and free of play.
DISCLOSURE OF INVENTION
The object of the invention is to provide a device for knife blades which satisfies the requirements given above. More particularly, an object is to provide a knife suitable for example for hunting, fishing, wood-carving and the like, wherein the knife blade shall withstand chopping, stabbing, sawing and prizing loose, which presupposes that the securing of the knife blade in the handle is stable and free of play.
It is also an object of the invention to provide a device which permits a plurality of different types of knife blade which can be used, for example, for dismembering an animal killed while hunting.
Several different types of knife and chisel tool are likewise required for wood-carving. It therefore involves a considerable saving in carrying out the above-mentioned activities if, according to the invention, several different tools can be used with one and the same knife handle.
Thus through the invention a knife comes into existence with which the knife blade can easily and conveniently be detached from the handle and with which the knife blade is mounted firmly and securely in the inserted position, while at the same time the risk of the knife blade accidentally coming loose is minimum. That which primarily distinguishes the device according to the invention can be seen from claim 1. Further characteristics of the invention are seen from the following description and the other patent claims.
BRIEF DESCRIPTION OF DRAWINGS
The invention will be explained in more detail below with reference to an example of embodiment which is shown on the accompanying drawings in which
FIG. 1 is an exploded view of the parts included in the device.
FIGS. 2-7 show the device in longitudinal and cross section in three different positions; FIG. 2 with the knife blade locked in the handle, FIG. 4 with the control member pressed in releasing the knife blade and FIG. 6 the knife handle without knife blade.
BEST MODE OF CARRYING OUT THE INVENTION
The device includes a knife blade 1 which is adapted to be introduced into a slide 2 formed from recesses 2', 2" in two halves 3, 4 of gripping members. The halves of gripping members are identical in shape but in mirror image and together form a knife handle.
Disposed in each half gripping member 3, 4 is a groove 5', 5" which grooves together form a chamber 5. A spring leaf 6, 7 is disposed in each groove 5', 5". The leaves have their resilient contact surface facing one another.
The spring leaves 6, 7 are each provided with a hook 8, 9 on the contact surface which hooks are directed from the opening of the slide 2 obliquely into the slide space.
The knife blade 1 is provided with holes 10, 11, countersinkings
REFERENCES:
patent: 1745103 (1930-01-01), Lenze
patent: 3187431 (1965-06-01), Mattes
patent: 3234649 (1966-02-01), Preble et al.
patent: 3367335 (1968-02-01), Ward et al.
patent: 3609864 (1971-10-01), Bassett
patent: 3626592 (1971-12-01), LaCas et al.
Aktiebolaget Metka
Yost Frank T.
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