1. A needleless disposable injector with a housing (200), in which or on which - in each case at least in separate sections - at least one mechanical spring energy storage device (50) is placed, at least one is at least partially suitable for filling with the active substance — a cylinder-piston unit (100), at least one actuating piston-stop piston (60) and at least one starting device (80), wherein the actuating piston-piston stop (60) is located between the spring energy storage device (50) and piston (111) cylinder-piston unit (100), wherein the spring energy storage device includes at least one pre-tensioned spring element (50), wherein the actuating piston-stop piston (60), which is under the elastic action of the spring, abuts against the housing (200) by means of support rods (240) or pull hooks (250), and wherein the contact area located between the individual support rod (240) or pull hook (250) and the actuator piston stop (60) is a pair of wedge mechanisms that extrude a specific support rod or outboard hook y, characterized in that - the housing (200) consists of a thin-walled metal sheet part (201, 202), - that the sheet part (201, 202) has at least two shoulders (220, 250), - that at the free ends of the shoulders (220) is provided by an angled retaining element (221) or opening, which in each case plays the role of a place to place the cylinder (101) of the cylinder-piston block (100), that the metal part (201, 202) is equipped with at least two tensile rods (240) or at least two pull hooks (250), the free ends of which1. Безыгольный одноразовый инъектор с корпусом (200), в котором или на котором - в каждом случае по меньшей мере на отдельных участках - размещены по меньшей мере один механический пружинный накопитель энергии (50), по меньшей мере один - как минимум отчасти пригодный к наполнению действующим веществом - цилиндро-поршневой блок (100), по меньшей мере один приводной шток-упор поршня (60) и по меньшей мере одно пусковое устройство (80),-
