SEAL (VERSIONS) Russian patent published in 2000 - IPC

FIELD: mechanical engineering, in particular, sealing of modules with loads, big-volume containers etc. SUBSTANCE: seal has plastic body 1 with through central opening, flexible locking member 4 made integral with body 1, and lobed stop which may be inserted into body opening. Stop is made in the form of split holder 2 mounted in body 1 so as to be joined to locking member. Flexible locking member 4 has thinned shank and cylindrical and conical portions positioned in alternation. Cylindrical projection in front of thinned shank has diameter equal to larger section of conical portion. According to first version, plastic holder has three lobes oriented in direction coinciding with locking member insertion direction. Body 1 has step and holder base has projection providing central fixation and orientation of holder base. According to second version, holder is made in the form of metal plate with central opening having diameter smaller than that of locking member. Holder is provided with four slots defining lobes in plate, with lobes being oriented in direction coinciding with locking member inserting direction and being positioned at an angle of 15-45 deg to plate base holder, which may be provided with rims extending along base edge and bent in direction coinciding with locking member inserting direction. Conical and cylindrical portions of locking member are equal in length. Conical portions are positioned at inclination angle of cone generatrix of 10-30 deg to longitudinal axis. Body and locking member junction part is made thinned. Shank has round, square or polygonal section, and its end is sharpened. EFFECT: increased stopping and locking efficiency and simplified construction. 10 cl, 2 dwg