Metal working – Plural diverse manufacturing apparatus including means for... – Separate tool stations for selective or successive operation...
Patent
1986-05-28
1987-11-17
Weidenfeld, Gil
Metal working
Plural diverse manufacturing apparatus including means for...
Separate tool stations for selective or successive operation...
295661, 53520, 83153, 83167, B23Q 700
Patent
active
047063700
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a cutting and mounting apparatus for cutting film sections which can be lowered into a slide mount disposed in a slider below a cutting tool, and which upon withdrawal of said slider can be snapped into the slide mount while resting against a guiding jaw, said apparatus also having means for holding the slide mount in the slider and for seizing one of the film sections each.
From EP-PS No. 0 009 144, a cutting and mounting apparatus is known in the case of which a slide film section can be snapped into a common-type slide mount. This apparatus comprises a slide mount shifting means and has two convex bending jaws facing each other at a distance defined by a slide film section. Each bending jaw is designed on an abutment and has an impact surface facing downwardly. Both abutments are pivotable and spring-biased so as to rest on the front and rear frame portion, respectively, of a slide mount shiftable below the abutments. The rear abutment is pivotally arranged in a guide block which can be shited in the longitudinal direction by means of a slider connected to it by a spring so that during a first phase of movement of the shifting means the rear abutment can be moved over a certain distance towards the stationarily and pivotally mounted front abutment across the surface of the slide mount. During this shifting movement, the rear edge of the film section is seized by the impact surface of the bending jaw of the rear abutment and shifted forwardly. During said shifting movement, the film section first engages with its rear edge the area of a groove at the rear frame portion of the slide mount, and then abuts with its front edge the impact surface of the front bending jaw. After the rear abutment has been shifted over a short distance, the slide mount starts shifting and is first slid with its front frame portion below the front abutment. Since the film section is supported with its rear edge in the groove of the rear frame portion and rests with its front edge against the impact surface of the front bending jaw, the central area of the film section bends upwardly upon further shifting of the slide mount and snaps into a groove in the front frame portion of the slide mount.
In the case of bigger film sections, e.g. in the case of a slide of a greater format, or of film sections having the size of a slide, which are punched out of a film strip (West German Patent Application P No. 34 03 027), the film section or cut-out can be bent in various directions, with the extent to which the section or cut-out is bent varying greatly.
The apparatus mentioned first is not suitable for snapping in a greatly bent film section or cut-out since the upwardly facing edges of a greatly bent film section come to rest on the convex bending jaws of the two abutments of the known apparatus and are deflected upwardly so that they can no longer be seized by the impact edges of the abutments. If the rear abutment moved towards the front abutment, the film section would be compressed between them and thus become useless. Moreover, inspite of the chute walls being inclined a film section when cut and lowered into a slide mount could get stuck with one of its edges in the area of one of the convex transition points of the bending jaws, and could remain in an angular position. In addition to a number of movable parts, the abutments are pivotally movable, too, so that the known shifting means has a complicated construction and can only be manufactured at high costs.
It is the object of the invention to modify and to improve the shifting means of the known cutting and mounting apparatus such that pivotally movable components are not necessary for holding down a slide mount, and that despite a simple construction of the apparatus the shifting means functions reliably so that particularly the edges of greatly bent film sections are seized with adequate reliability and directed into the area of the frame portions of a slide mount.
According to the invention, this object is achieved in that a component is shiftably guid
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Blattner Dietmar
Dieterle Hermann
Leutwein Manfred
Simon Horst
Eastman Kodak Company
Howell Daniel
Randall Robert L.
Weidenfeld Gil
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