Abstract: A telescope including a fastener plate, a primary mirror carried by a front face of the plate, and a secondary mirror held facing the primary mirror by a support, wherein the support includes a primary sleeve mounted around the primary mirror, a secondary sleeve mounted around the secondary mirror, and arms connecting the secondary sleeve to the primary sleeve, and in that the arms are curved towards the primary mirror.

Abstract: A starter comprises an electric motor which drives a rotor shaft, a drive shaft that can be rotationally coupled to the rotor shaft, and a pinion mounted on the drive shaft and movable in a translational movement between a rest position and an active position by a movement system. The starter comprises a coupling system that couples a rotary movement in one direction of rotation of the rotor shaft to the pinion. The coupling system moves from an uncoupled state into a coupled state and vice versa. In the coupled state, the rotor shaft is firmly attached to the pinion in the starting direction of rotation. In the uncoupled state, the pinion is disconnected from the rotor shaft in both directions of rotation. The starter further comprises a movement system for moving the pinion from the coupling system into the uncoupled state as it moves the pinion into active position.

Abstract: A starter drive assembly for a combustion engine starter having a starter ring, comprising a pinion intended to mesh with the starter ring, a driver intended to be moved by a control lever belonging to the starter, a casing constrained to rotate with the pinion and acting as a housing for at least one friction element, such as a friction disc, capable of being clamped axially between a reaction plate belonging to the casing and a pressure plate belonging to the driver, wherein it comprises a stop rigidly connected to the reaction plate in order to limit the movement of the driver and wherein axially acting elastic means with a linear characteristic curve are provided between the pressure and reaction plates to clamp the friction element. The combustion engine starter comprises such a contactor.

Abstract: A friction starter drive unit comprises a drive pinion for meshing with a starter ring gear. A drive element and a friction clutch are between the drive element and the drive pinion. The friction clutch has a reaction element rotatably fixed to the drive pinion and a pressure element solidly connected to the drive element. The drive element moves relative to the reaction element between uncoupled and coupled positions, and a resilient means biases the reaction element and the drive element toward the uncoupled position. A retaining washer is rotatably fixed to the reaction plate or the drive element. When the retaining washer is rotatably linked to the reaction plate, the resilient means is positioned between the reaction plate and the retaining washer, and, when the retaining washer is rotatably linked to the drive element, the resilient means is positioned between the drive element and the retaining washer.

Abstract: The combustion engine starter with output pinion (18) comprises a front bearing (12) provided with a front face (120) having an opening (312), a drive assembly equipped with a bush (26) passing through the opening (312) and bearing the output pinion (18) outside the front bearing (12), complementary splines (67,167). A groove (64, 164) interrupts the splines (67) of the bush (26) in order to mount a stop (60, 160) for immobilizing the pinion, a play-compensating spring (61) urging the pinion into contact with the stop (60, 160) formed by a spring ring which has a height greater than its thickness and which is housed with radial clearance at least partially in an annular recess (62) made in the front face (183) of the pinion (18); the internal periphery of the spring ring (60, 160) being mounted in the groove (64, 164) in the bush (26).

Abstract: A friction starter drive unit for a starter, comprising: a pinion including a hole for the passage of a drive shaft; a drive part including a hole for the passage of a drive shaft, said drive part being mounted such as to be rotationally fixed with the pinion; a drive element including a hole for the passage of a drive shaft of a starter, which element can move in translation along axis X of the hole in relation to the drive part between an uncoupled position and a coupled position; and a friction coupling means arranged to couple the drive element to the drive part when the drive element is in the coupled position. The starter drive unit comprises a return means that exerts a force on the drive element and a force on the drive part in the direction of the uncoupled position.

Abstract: Mobile assembly (500) for meshing with a toothed starter ring gear (C) of a heat engine comprises: a drive unit (1) provided with a pinion (11); a starter drive element (118); a pivoting control lever (20) including a lower forked end having two arms; and a friction clutch (300), pinion being rotationally fixed with a casing partially housing the drive element (118) and comprising the reaction plate (112) of the clutch. The lever (20) is associated with means for closing the clutch and is configured to move the casing axially, while the closure means are configured to move the drive element axially in order to tighten the friction clutch. The heat engine starter comprises such a mobile assembly.

Abstract: A starter comprises an electric motor which drives a rotor shaft, a drive shaft that can be rotationally coupled to the rotor shaft, and a pinion mounted on the drive shaft and movable in a translational movement between a rest position and an active position by a movement system. The starter comprises a coupling system that couples a rotary movement in one direction of rotation of the rotor shaft to the pinion. The coupling system moves from an uncoupled state into a coupled state and vice versa. In the coupled state, the rotor shaft is firmly attached to the pinion in the starting direction of rotation. In the uncoupled state, the pinion is disconnected from the rotor shaft in both directions of rotation. The starter further comprises a movement system for moving the pinion from the coupling system into the uncoupled state as it moves the pinion into active position.

Abstract: The combustion engine starter with output pinion (18) comprises a front bearing (12) provided with a front face (120) having an opening (312), a drive assembly equipped with a bush (26) passing through the opening (312) and bearing the output pinion (18) outside the front bearing (12), complementary splines (67,167). A groove (64, 164) interrupts the splines (67) of the bush (26) in order to mount a stop (60, 160) for immobilizing the pinion, a play-compensating spring (61) urging the pinion into contact with the stop (60, 160) formed by a spring ring which has a height greater than its thickness and which is housed with radial clearance at least partially in an annular recess (62) made in the front face (183) of the pinion (18); the internal periphery of the spring ring (60, 160) being mounted in the groove (64, 164) in the bush (26).