Abstract:
A cover device for at least partially closing off a cavity includes at least one cover element for closing off the opening of the cavity, and a support structure in the form of an elongate body for supporting and positioning the cover element in or close to the cavity. The cover element is in the form of a pneumatic mattress equipped with return elements for urging it back into a most compact configuration in which it is rolled up about a free one of its sides and forms a spirally wound roll, the free side being formed by the side of the mattress that is opposite from the connecting side of the mattress via which side the mattress is connected to the support structure. This device includes at least one support arm for supporting the mattress while going from its rolled-up most compact configuration to its rolled-out least compact configuration.
Abstract:
A closure device for closing off, at least in part, a cavity (1) that is open at its top, includes a set of panels (3) suitable for forming a closure cover and cover support element (13). Each panel has link elements for linking to the neighboring panel(s) (3) so as to enable the set of panels (3) to go from a stacked configuration, in which they are superposed on one another in order to open up the opening in the cavity (1) at least in part, to a deployed configuration, in which the panels of at least some of the set of panels (3) extend in alignment with one another while bearing against the cover support element (3). The device further includes elastically deformable elements (4) suitable for being compressed by the panels when the set of panels (3) are in the stacked configuration.
Abstract:
The invention relates to a closure device for closing off, at least in part, a cavity (1) that is open at its top, said device comprising a set of panels (3) suitable for forming a closure cover and cover support means (13). In the invention, each panel has link means for linking to the neighboring panel(s) (3) so as to enable said set of panels (3) to go from a stacked configuration, in which they are superposed on one another in order to open up said opening in said cavity (1) at least in part, to a deployed configuration, in which the panels of at least some of said set of panels (3) extend in alignment with one another while bearing against said cover support means (3). Said device further comprises elastically deformable means (4) suitable for being compressed by said panels when said set of panels (3) are in the stacked configuration.
Abstract:
A cover device for at least partially closing off a cavity includes at least one cover element for closing off the opening of the cavity, and a support structure in the form of an elongate body for supporting and positioning the cover element in or close to the cavity. The cover element is in the form of a pneumatic mattress equipped with return elements for urging it back into a most compact configuration in which it is rolled up about a free one of its sides and forms a spirally wound roll, the free side being formed by the side of the mattress that is opposite from the connecting side of the mattress via which side the mattress is connected to the support structure. This device includes at least one support arm for supporting the mattress while going from its rolled-up most compact configuration to its rolled-out least compact configuration.