EP 0656247 B1 19980128 - Knife with automatic retraction device for the knife blade when it is no longer in its operating position
Title (en)
Knife with automatic retraction device for the knife blade when it is no longer in its operating position
Title (de)
Messer mit automatisch wirkender Einzugsvorrichtung der Messerklinge ausserhalb ihrer Handhabungsposition
Title (fr)
Couteau muni d'un dispositif de retrait automatique de la lame en dehors de sa position d'utilisation
Publication
Application
Priority
DE 4341360 A 19931204
Abstract (en)
[origin: DE4341360C1] A knife (10) having a knife blade (13) which is guided in a hollow handle body (11) and is loaded in the retraction direction has a locking device (19, 20) which holds the knife blade (13) in the extended operating position. A protection device which can be activated as soon as the knife is released from the hand comprises the unlatching means of the locking device (19, 20) having an electromagnet (32) which can be operated by a voltage source (24), via a relay (28) in conjunction with a contact-making device (29) whose tripping is delayed. The circuits (25, 31) for the relay with the contact-making device (29) whose tripping is delayed and for the electromagnet (32) can be interrupted during handling of the knife (10) by means of a switch (22, 23) which can then be operated positively, and are closed when the knife (10) is released from the hand. <IMAGE>
IPC 1-7
IPC 8 full level
B25G 1/00 (2006.01); B26B 5/00 (2006.01); B26B 29/02 (2006.01)
CPC (source: EP)
B25G 1/00 (2013.01); B26B 5/003 (2013.01); B26B 29/02 (2013.01)
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
DE 4341360 C1 19940818; DE 59405171 D1 19980305; EP 0656247 A1 19950607; EP 0656247 B1 19980128
DOCDB simple family (application)
DE 4341360 A 19931204; DE 59405171 T 19941109; EP 94117646 A 19941109