초록 ▼

Apparatus for tensioning a safety belt, in which tension is applied to the belt through the action of a piston in a working cylinder, includes a mechanism for blocking the reverse action of the piston in the cylinder following the application of pressure. The reverse motion blocking mechanism includ

Apparatus for tensioning a safety belt, in which tension is applied to the belt through the action of a piston in a working cylinder, includes a mechanism for blocking the reverse action of the piston in the cylinder following the application of pressure. The reverse motion blocking mechanism includes at least one wedge, movable along a slide surface in response to the application of gas pressure, and toothings on the piston into which the wedge may be lodged to prevent reverse motion of the piston following the application of tension to the safety belt.

대표청구항 ▼

Apparatus for tensioning a safety belt in response to applied gas pressure, comprising: a cylinder; a piston, displaceable in said cylinder in a forward direction in response to said gas pressure and having toothings; at least one slide surface, inclined relative to the axis of said cylinder and mou

Apparatus for tensioning a safety belt in response to applied gas pressure, comprising: a cylinder; a piston, displaceable in said cylinder in a forward direction in response to said gas pressure and having toothings; at least one slide surface, inclined relative to the axis of said cylinder and mounted to said cylinder; at least one blocking wedge, supported on said slide surface and displaceable in response to said gas pressure to engage said toothings, thereby blocking the motion of said piston in a reverse direction; and means, interconnecting said piston and said safety belt, for applying tension to said safety belt in response to the forward motion of said piston.