System for locking a continuously adjustable slide

A system for locking a continuously adjustable slide for a vehicle seat, comprising;

• the slide comprising a first, lower slide element configured to be attached to a vehicle floor, and a second, upper slide element configured to slide along the first slide element
• a system for locking by bracing, comprising:
• a rail, extending lengthwise along the slide, fixed relative to the first slide element, the rail having a first, upper friction surface and a second, opposite, lower friction surface,
• a first blocking member and a second blocking member, mounted rigidly connected to the second slide element, with positions offset along a longitudinal axis of the rail, the first blocking member comprising a first wall and a second wall, facing one another, configured to rub on the first friction surface and second friction surface of the rail, respectively, the second blocking member comprising a third wall and a fourth wall, facing one another, configured to rub on the first friction surface and second friction surface, respectively, of the rail,
• and wherein the first slide element is a lower profile and the second slide element is an upper profile, slidably mounted along the lower profile, the first blocking member and the second blocking member extending internally into an interspace between the upper profile and the lower profile, the rail rigidly connected to the lower profile, accommodated in the interspace and in the first blocking member and the second blocking member protrude from the upper profile through at least one opening of the upper profile,
• wherein the system for locking by bracing comprises:
• a stop means integral with the second slide element, extending above the upper profile, the stop means interposed between, on the one hand, a protruding portion of the first blocking member extending from a first opening of the upper profile, and on the other hand a protruding portion of the second blocking member extending from a second opening of the upper profile, and wherein the stop means comprising:
• a first stop surface facing the projecting portion of the first blocking member, defining with an opposite surface of the first blocking member a first slot with a profile converging along a vertical component, for example decreasing in width from bottom to top,
• a second stop surface facing the protruding portion of the second blocking member, defining with an opposite surface of the second blocking member a second slot with a profile converging along a vertical component, for example decreasing in width from bottom to top,
• a first wedging element extending in the first slot and first resilient means configured to move the first wedging element along the vertical component of the first slot to a first clamping position wherein the first wedging element is blocked by wedging effect against the first stop surface and the portion protruding from the first blocking member by generating a first force between the first blocking member and the first wedging element providing a bracing of the first blocking member on the rail providing a locking of the second slide element relative to the first slide element in a first sliding direction, by two reactions of the rail on the first blocking member, with on the one hand a first reaction between the first upper friction surface of the rail and the first wall of the first blocking member and, on the other hand, a second reaction between the second lower friction surface of the rail and the second wall of the first blocking member,
• a second wedging element extending into the second slot and second resilient means configured to move the second wedging element along the vertical component of the second slot to a second clamping position wherein the second wedging element is blocked by wedging against the second stop surface and the portion projecting from the second blocking member, generating a second force between the second blocking member and the second wedging element providing a bracing of the second blocking member on the rail, locking the second slide element relative to the first slide element in a second sliding direction, by two reactions of the rail on the first blocking member, with, on the one hand, a third reaction between the first upper friction surface of the rail and the third wall of the second blocking member and, on the other hand, a fourth reaction between the second lower friction surface of the rail and the fourth wall of the second blocking member,
• an unlocking mechanism which is configured to drive the movement of the first wedging element along the vertical component of the first slot and the movement of the second wedging element along the vertical component of the second slot, from their positions constrained by the first and second resilient means providing the bracings of the first blocking member and of the second blocking member on the rail and thus the locking of the slide and to a retracted position of the first wedging element and a retracted position of the second wedging element eliminating the bracings of the first blocking member and the second member on the rail, freeing the slide so that it may slide.