Dispositif de verrouillage pour trappe d'acces aux ouvrages du genie civil

Locking mechanism for access hatches in civil engineering applications

  • Inventors:
  • Assignees: Troccon Jean
  • Publication Date: May 15, 1996
  • Publication Number: FR-2726851-A1

Abstract

<P>Dispositif de verrouillage pour trappe d'accès aux ouvrages du génie civil.<BR/>Il comporte, sensiblement au centre de la trappe (1), sous sa face inférieure, au moins un élément mobile (2) en pivotement autour d'un axe (12) parallèle à la trappe (1) et solidaire de celle-ci, dont la partie inférieure est munie d'un contrepoids (21) en porte à faux et dont la partie supérieure comporte, à proximité de la face inférieure (10) de ladite trappe (1), parallèlement audit axe (12), une barre horizontale, ou analogue (22), de longueur légèrement inférieure à la plus grande dimension de l'ouverture du dormant (3).</P>
At the centre of the hatch (1), under the lower edge, there is a component (2) which rotates around an axis (12) which is parallel to the hatch and attached to it. The moving section (2) has two vertical plates (20) which rotate on bearings (11) attached to the hatch and at the upper end of each plate, nearest the hatch, there is a lug (22) which extends outwards. The free ends of the lugs are slightly closer together than the maximum dimension of the frame (3). The plates (20) are joined by a cantilevered counterweight (21). The key has a handle and an iron rod with an S shaped bend which is inserted in the centre opening (13) of the hatch and is rocked to move the counterweight, releasing the hatch.

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