Abstract: The invention relates to a knife comprising a handle of longitudinal axis and a blade rotatably mounted at a first longitudinal end of the handle, between a position deployed outside the handle and in alignment thereof, and a position folded in a space provided in the handle, the knife further comprising a cap lifter, the cap lifter being placed at a second longitudinal end of the handle, the cap lifter comprising a wire structure mounted to freely rotate about an axis orthogonal to the longitudinal axis of the handle, the wire structure defining with the handle a closed contour delimiting a cap lifting aperture intended to receive a capsule, and in that the cap lifter comprises a bearing element allowing the bearing of the cap lifter on an upper part of the capsule, said bearing element being formed by a bearing zone of the handle, and a hooking element allowing the hooking of the cap lifter under the capsule, said hooking element being formed by a rectilinear transverse portion of the wire structure.

Abstract: An accessory suitable for a removable attachment in a grip handle, in which the handle includes an inner housing formed in an end portion of the grip handle, an opening whose second portion opens onto a lateral side of the grip handle, a rotating ferrule rotating between a blocking position, in which the rotating ferrule at least partly covers the second portion of the opening, and a release position, in which the rotating ferrule releases the second portion of the opening. The accessory includes an assembly portion usable as a removable attachment of the accessory to the grip handle. The assembly portion is inserted into the inner housing, and includes a retaining part that cooperates with the rotating ferrule when the rotating ferrule is in the blocking position so as to retain the assembly portion in the inner housing.