Basin, swimming pool or water surface covering device, has upper module whose section has inner guiding units in form of grooves to reciprocally and slidingly cooperate with two wings forming outer guiding units of section of lower module

摘要

The device has lower and upper modules comprising sections (10A, 10B) provided with inner guiding units (11) and outer guiding units (12), respectively. The outer guiding units of the section (10B) cooperate with inner guiding units of another section of another upper module. The inner guiding units of the section (10B) cooperate with the outer guiding units of the section (10A). The inner guiding units of the section (10B) are in the form of complementary grooves (13A, 13B) to reciprocally and slidingly cooperate with two wings (14A, 14B) forming the outer guiding units of the section (10A).