Anti-reversing device in a staple magazine

An anti-reversing device in a staple magazine (6) which is accommodated in a stapler (1) and which contains elongated staple blanks (11) which are separably joined (13) with each other along their long sides to form an elongated web (14) wherein the separable joint is disposed along the mid-sections (12) of the staple blanks and the outer sections (18, 19) of each staple blank are capable of limited movement relative to the outer sections of adjacent staple blanks and to their own aforementioned mid-section (12) in a direction which is transverse (1) to the lengthwise direction (L) of the web, the staple blanks being advanced stepwise by a feed device (7) along a feed channel (21) out of the magazine one at a time via a outlet opening (20), said feed channel consisting of at least a first channel guide (22) and a second channel guide (23) on which the elongated web of staple blanks advances, said first and second channel guides being respectively so positioned that they support respective outer portions of said web, and a third channel guide (24) which is closely positioned (d) to the web along the mid-sections thereof on that side (15) of the web which is opposite to the side (16) of the web which is supported by the first and second channel guides;

• the first and second channel guides (22, 23) exhibit at equal distances (A) from the outlet opening (20) respective integrated stops (26) which, as the web (14) advances, force the outer sections (18,19) of the advancing staple blanks to bend resiliently upwards relative to the mid-sections (12) thereof as the staple blanks pass over the stops, regaining their original positions once the stops are passed, whereby the staple blanks, having advanced, are prevented by the stops from moving in the direction opposite to the direction of feed (F).