Importance

Loading Importance Indicators...

Abstract

A device for folding over the flaps of envelopes received separately with the flap open at the entry to a guide path comprises a feed system for moving the envelopes along the guide path and a deflector system for folding the flaps of the envelopes over from an open position to a closed position. The deflector system comprises first and second pulley wheels with parallel rotation axes disposed with respect to the entry to the guide path and one on each side of this path so as to receive the envelopes between them. The first pulley wheel faces towards the front of the envelopes and has a stepped peripheral surface formed by a cylindrical first portion adapted to bear on at least that portion of each envelope adjoining the flap and a frustoconical second portion running on from this first portion and widening towards the flaps of the envelopes. The second pulley wheel has a peripheral surface formed by a cylindrical first portion opposite the first portion of the first pulley wheel and set back relative to the envelopes and a projecting disk at the end of this first portion situated beneath the frustoconical portion of the first pulley wheel. The disk is substantially aligned with the junction between the first and second portions of the first pulley wheel in order fold the flaps of the envelopes down from the open position to an intermediate position in which the flap is substantially perpendicular to the remainder of the envelope.

Loading the Abstract Image...

First Claim