EP 0271223 A1 19880615 - Retractable blade knife.
Title (en)
Retractable blade knife.
Title (de)
Messer mit einziehbarer Klinge.
Title (fr)
Couteau à lame escamotable.
Publication
Application
Priority
- AU 8098887 A 19871110
- AU PH890786 A 19861112
Abstract (en)
A retractable blade knife having a self-sharpening facility (34) which can be selectively rendered inoperable. The sharpener (34) is spring biased in an upward direction so as to be urged into engagement with the cutting edge (17) of a knife blade (10), and manually operable release means (38) is provided to permit the sharpener (34) to be held in an inoperable position. An assembly of which the sharpener (34) forms part also functions as stop means which positively prevents movement of the knife blade (10) into its extended position. Such extension is possible only upon operation of the release means (38), but that is only necessary during initial outward movement of the knife blade (10). The sharpener (34) is arranged to sharpen the cutting edge (17) of the blade (10) up to the tip (19) of the blade (10). Positive locking means (27) is provided to prevent inward movement of the blade (10) when working under load in the extended position.
IPC 1-7
IPC 8 full level
B24D 15/08 (2006.01); B26B 5/00 (2006.01)
CPC (source: EP)
B24D 15/084 (2013.01); B26B 5/001 (2013.01)
Citation (search report)
- [Y] GB 2161737 A 19860122 - NIPPON TENSHASHI KK
- [Y] US 2337158 A 19431221 - FRANK EARL L
- [A] US 3846909 A 19741112 - CLARKE R
- [A] US 3676961 A 19720718 - JACKSON DENNIS B
- [A] US 2700819 A 19550201 - MASON DONALD E
- [A] US 2744320 A 19560508 - PALERMO VINCENT J
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
DOCDB simple family (application)
EP 87309976 A 19871111