Abstract: The line jammer device is a device for jamming a line which is under tension upstream of the device when it is in a locked state and releasing the line when it is in an unlocked state. The device has a first line gripping member and a second line gripping member. The first line gripping member has a circular surface around which the line is wound between a fraction of a turn corresponding to an angle of more than 180° and at least one turn. The second line gripping member is arranged in such a way that the grip it exerts on the line is exerted once the line has been wrapped around the first gripping member between a fraction of a turn corresponding to an angle of at least 180° and at least one turn.

Abstract: A safety snap hook comprising a so-called "hairpin" pawl including a rod of elastically deformable material, bent to form an open loop. Bent-over ends of the rod, about which the pawl pivots with respect to the body of the snap hook, are not coaxial. The snap hook being characterized in that the pawl is shaped in such a way that its bent-over ends are normally kept in spaced-apart position in which they are situated some distance from one another preventing pivoting with respect to the body. The pawl may be deformed in such a way as to bring the bent-over ends into a position in which they are closer together, in order to make pivoting possible. The body of the snap hook comprises an aperture in which one of the bent-over ends is engaged and can slide, while the other bent-over end is mounted so that it can pivot on the body about a fixed axis.

Abstract: According to the invention this component includes a shackle of conventional type, that is to say which has a U-shaped body of substantially uniform diameter, and includes an insert made of synthetic material overmolded on the rounded end and on the base of the side arms of the shackle, this insert including a central part of circular shape, of greater diameter than that of the body of the shackle, and side bulges demarcating, with this central part, a groove for receiving a rope.