Abstract: The improvements are applicable to fuses provided with a container (9) inside which may move axially a slider (10) having an electrical generator (1), the activation of which provides the electrical energy required for the operation of the fuse, delivering this energy to an electronic circuit (11) which discharges on a detonator (8), which causes the detonation which through a multiplier (12) is transmitted to the explosive charge of the grenade. The novelty consists in that two electronic timers are provided which are mutually independent and which may operate under different or identical technologies, one analogue and the other digital, and in that the detonator (8) and the multiplier (12) in a resting position are unaligned, with alignment resulting from a displacement caused by a specific arrangement of the elements of the explosive chain.

Abstract: A fuse for an explosive shell comprises a body having a longitudinal axis, a hood unit fitting over the body and movable along the body vertical axis between a first position and a second position, and a parachute linked to the hood unit for pulling the hood unit from its first position to its second position when the explosive shell is released. A slide catch is housed in the body and is moveable in a direction perpendicular to the body perpendicular axis from an unprimed to a primed position. A primary detonator is housed in the slide catch. The primary detonator is out of alignment with the main charge of the explosive shell when the slide catch is in its unprimed position, and is in alignment with the main charge of the explosive shell when the slide catch is in its primed position. A safety catch holds the slide catch in its unprimed position until it is released by inertial forces acting on the fuze. A firing pin detonates the primary detonator.