US 5,342,032 AGranted

Apparatus for wire-stapling multi-component printed products

AssigneeFerag AG

InventorJacques Meier

Life of this patent

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Abstract

The stitching or stapling heads, which act together in a stitching zone (C) with the supports that carry printed products to be wire-stitched, have a circular orbit. The stitching heads are guided so as to maintain their more or less vertical position during their orbit. Within the stitching zone (C), each stitching head is thus approximately aligned with its respective support and is therefore in the preferred position for driving the staples into the printed products. When the stitching heads encounter the supports, they are pushed back radially inward against the resistance of compression springs. This causes a slight flattening in the orbit of the stitching heads in the stitching zone (C) and slightly prolongs the time available for the stitching heads to act together with the supports in the stitching process.

Claims18

Dependent claims

Apparatus for wire-stapling multi-component printed products comprising:

saddle-shaped supports arranged parallel to each other and moving in a closed orbit or path and extending approximately at right angles to their orbital movement (A), said orbit or path passing through a stapling zone (C) and being disposed at one side of the stapling zone;
at least one stapling system with a number of stapling heads for placing wire staples in position, the stapling heads being designed and located to encounter the supports within the stapling zone (C), and moving in a closed orbit which is circular outside of the stapling zone at approximately the same speed as the supports;
the stapling heads being placed at intervals behind one another in the direction of their movement (B), which intervals correspond with the intervals between adjacent supports, and the stapling heads also being resiliently mounted on carriers movable in a closed circular orbit at the side of the stapling zone opposite from the closed orbit of the saddle-shaped supports so that when the stapling heads encounter the respective supports in the stapling zone (C), the supports force the stapling heads resiliently out of their otherwise circular orbit and inwardly with respect to the closed circular orbit of the carriers.

Dependencies are inferred from the claim text.