Title: Device for setting rivets, buttons or the like on textiles
Application Number: 98800021 Application Date: 1998.01.09
Publication Number: 1216093 Publication Date: 1999.05.05
Approval Pub. Date: 2002.07.24 Granted Pub. Date: 2002.07.24
International Classifi-cation: A41H37/00;F16P3/16
Applicant(s) Name: YKK Corp. Address:
Inventor(s) Name: R. Kamps
Attorney & Agent: cui yaobeng
Abstract:
    A device for setting rivets, buttons or the like which consist of an upper and a lower part on textiles or the like has a bottom tong (1) for supporting the article bottom part and a plunger (2) that carries out the riveting stroke. An upper tong (3) that acts upon the article upper part is associated to the lower end of the plunger and a driving device (4) that ensures the reciprocating movement is associated to the upper end of the plunger. In addition, a finger guarding hoop (11) associated to the plunger extends into the path of displacement of the upper tong and after the plunger has started its riveting stroke stops the driving device and therefore the plunger when it hits an obstacle before reaching its end position. The device is substantially simplified in that the finger guarding hoop (11) is driven together with the plunger (2) that acts on the upper tong (3) when the driving device (4) reciprocates the plunger (2). For that purpose, the finger guarding hoop (11) is joined to the plunger (2) by a coupling element (13) which triggers the stop of the driving device when the finger guarding hoop (11) hits the obstacle (14). The coupling element (13) is a double-jointed rod (15) with an incorporated spring (16). An electric switch (19) arranged in the control circuit (20) of the driving device (4) of the plunger (2) is associated to the double-jointed rod (15) and reacts to a change in the length of the double-jointed rod (15) caused by the finger guarding hood (11) hitting the obstacle (14) and stressing the spring (16), thus changing the length of the double-jointed rod (15).
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