Blade assembly and knife therefor

A knife comprising:

• a first part;
• a second part;
• a blade having first and second blade faces;
• a blade support carried on one of the parts, on which the blade is detachably fastened, and that has a blade seat having a contact face engageable with the first blade face, the second blade face being opposite the first blade face and substantially freely accessible, the first and second parts being movable between an operating position with the blade projecting from the parts and a stowed position with the blade wholly contained between the parts;
• a holder on the blade support for holding the blade in the blade seat and having
• a first interlocking formation on the blade support and
• a second interlocking formation on the blade that interlockingly holds the blade at least in a plane parallel to the contact face, the interlocking formations being so constructed that the blade has a degree of freedom in at least one direction in order to be detached from the blade seat;
• and
• a latch on the holder and having at least one bolt movable between a bolted position and a released position and engaging over a region of the second blade face or a blade cover in the bolted position to block movement of the blade in the direction of the degree of freedom, the bolt being is designed as a wire or a plate.

A knife comprising:

• a first part;
• a second part;
• a blade having first and second blade faces;
• a blade support carried on one of the parts, on which the blade is detachably fastened, and that has a blade seat having a contact face engageable with the first blade face, the second blade face being opposite the first blade face and substantially freely accessible, the first and second parts being movable between an operating position with the blade projecting from the parts and a stowed position with the blade wholly contained between the parts;
• a holder on the blade support for holding the blade in the blade seat and having
• a first interlocking formation on the blade support and
• a second interlocking formation on the blade that interlockingly holds the blade at least in a plane parallel to the contact face, the interlocking formations being so constructed that the blade has a degree of freedom in at least one direction in order to be detached from the blade seat;
• a seat on the blade support;
• and
• a latch on the holder and having at least one bolt formed as a wire or a plate, movable between a bolted position detachably fitted in the seat and a released position disengaged from the seat, and engaging over a region of the second blade face or a blade cover in the bolted position to block movement of the blade in the direction of the degree of freedom.