DOUBLE CONNECTOR FOR BUTT JOINT OF TWO STRUCTURAL ELEMENTS Russian patent published in 2020 - IPC F16B5/07 

FIELD: furniture.

SUBSTANCE: invention relates to double connector for butt joint of two structural elements and to system with such double connector, and is aimed at improvement of connection simplicity of two furniture boards. Double connector includes a guide pin and two expandable couplings directed along guide pin (4) with possibility of displacement. Guide pin on both sides of the middle portion of the finger in each case has a section of the finger narrowed towards the corresponding end of the finger. Two expanding couplings, each of which are made with possibility of shifting from external end position of coupling to middle section of finger up to mounting position, in which both expansion sleeves are fixed against reverse shift. Expanding couplings each have at least one expansion tongue, which in its mounting position is pressed outward by a guide pin. Expanding couplings each have section of bushing, which in outer end position of coupling has non-circular outer perimeter, which due to compression of bushing along long axis of non-circular outer perimeter can be deformed into more round outer perimeter. Bushing section on at least one of those segments of the bushing, which in the unstrained section of the bushing do not protrude beyond the outer perimeter of the deformed section of the bushing, has on inner side locking recess, and in external end position of coupling locking recess with undeformed section of sleeve is fixed on end of finger, and in deformed section of sleeve is no longer fixed or fixed only to a small extent on end of finger.

EFFECT: disclosed is a double connector for butt joint of two structural elements.

19 cl, 7 dwg