Metal tools and implements – making – Tool sharpeners – Cutting
Patent
1985-08-27
1987-05-12
Parker, Roscoe V.
Metal tools and implements, making
Tool sharpeners
Cutting
29 80, A63C 1106, B23D 6712
Patent
active
046639934
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a hand device for dressing ski edges, comprising a holder on which there is provided a pair of surfaces at right angles to each other, for bearing against the running surface and a side surface of the ski, of which one surface is formed at least in part as a cutting dressing surface of a tool and the other is formed as a guide surface of the holder, wherein the width of the surface having the dressing surface is greater than the width of the guide surface.
A device of that kind is disclosed for example in AT-B-No. 319828. Fitted into a base plate provided with a handle is a flat file or a flat milling plate which is fixed by a loop member which extends thereover in the longitudinal direction. The loop member or bar divides the dressing surface into two strips, the width of which can be altered by transverse displacement of the loop member as the fixing screws thereof are guided in transversely extending slots in the base plate. In that arrangement, displacement of the loop member results in particular in better use being made of the dressing surface. The flat file is only in contact in the recess in the base plate at its center so that, when dressing ski edges which in particular extend in a concave configuration in the region of the binding, the two ends of the tool which are arranged with some clearance relative to the base plate can adapt to those edges. For the purposes of dressing the ski edge surface at the running surface side, the hand device is caused to bear against the side surface of the ski, with the side surface serving as a guide surface, with good contact against the running surface being provided by the base plate. However, contact of that kind does not occur when the ski edge surface at the side surface portion is to be dressed as in that case the narrow guide surface of the loop member must be applied against the running surface, and the surface of the base plate, such surface being wider in itself, or the dressing surface, bears against the narrow side surface of the ski, with dressing being difficult in the region of the binding portion. In an embodiment which is not described in greater detail, the loop member may also be adjustable at an angle to the dressing surface so that it can be adapted to ski edges which are not at a right angle.
AT-B-No. 341 396 discloses an edge sharpening device which comprises a holder that is substantially L-shaped in cross-section and on one limb portion of which the flat file is supported, and which has extending thereover a member which is integrally connected to the limb portion at its longitudinal side. The flat file lies on two transverse ribs adjacent the ends of the holder, and is clamped in position by a screw which is arranged in the member extending over the file so that the file can also flex to adapt to the concave curvature of the edges of the ski. In that arrangement, the outside surface of the second limb portion of the holder forms the guide surface and the flat file projects beyond the guide surface so that this arrangement also provides a pair of working surfaces which are at right angles to each other, wherein the width of the dressing surface is substantially smaller. In that edge dressing device, good contact or support is provided when the guide surface of the second limb portion is caused to bear against the running surface of the ski and the ski edge surface which is at the side surface side is being dressed. The support action is also poor again if the ski edge surface at the running surface side is to be dressed as in that case the guide surface, which in itself is wide, bears against the narrow side surface of the ski and the narrow dressing surface bears against the running surface of the ski, while problems in regard to handling may also occur in the binding region. With that construction, it is possible to dress ski edges which are not of a right-angled configuration as the transverse support ribs for the flat file may be replaced by wedge-shaped ribs.
AT-B-No. 333 170 discloses a ski edge dressing d
REFERENCES:
patent: 1006940 (1911-10-01), Haynes
patent: 3561169 (1971-02-01), Pirzek
patent: 3670601 (1972-06-01), Weeks
patent: 3693219 (1972-09-01), Falkenberg
patent: 4121484 (1978-10-01), Gorlach
patent: 4189874 (1980-02-01), Labriola
Weninger, deceased Johann P.
Weninger, heir by Roland
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