GUIDE FRAME ELEMENT FOR SCREEN DEVICE Russian patent published in 2017 - IPC E06B3/92 E06B9/54 E06B9/40 E06B9/08 

FIELD: physics.

SUBSTANCE: portion of the guide frame is proposed . At least one end portion of the screen blade serves as a free end, and can be extracted inside and retracted from inside of the screen mounting frame portion. When a part of the guide frame, having ability to slide, is removed from the mounting frame portion, designed with ability to slide, the screen frame mounting portion, designed with ability to slide, makes sliding movement, while the removable part of the guide frame, having the sliding capability has rectilinear mode. Either or both of the two parts of the guide frame, having sliding capability, are formed by several rigid links, each of which has a pair of side walls, positioned by facing surfaces to each other, and a bridge, connecting both side walls to each other, passing, in fact, from the central portion to one of the end portions, wherein two adjacent rigid links are connected to each other with capabilty to rotate. The sidewall has the following: a portion, recessed at the width of the rigid link, and occupies about half of the side wall, in fact, of the central portion upto one of the end portions, a through hole, oriented along the rigid link width and located in the half of the side wall, in fact, of the central portion upto the other end portion, and a protruberance adjacent to the through hole, in fact, from the central portion side. The recessed portion, has the shaft, projecting outside, lying, in fact, in the central part, and there is the opening, oriented along the height of the rigid link and located, in fact, from the central part of the recessed portion to one of the end portions of the side wall. Two adjacent rigid links are connected so, that the shaft of one of the rigid links is inserted inside the through hole of another rigid link, and one rigid link is freely rotates relatively the other rigid link within the rotation range, limited by bringing the protruberance into contact with one end portion of the opening and with the other end portion of the opening.

EFFECT: invention extends the range of components for the guiding devices and has the ability to slide and flexibility.

3 cl, 3 dwg