JOINTING DEVICE TO CONNECT TWO MAST ELEMENTS AND SET COMPRISING TWO MAST ELEMENT AND SUCH JOINTING DEVICES Russian patent published in 2015 - IPC B66C23/26 

FIELD: construction.

SUBSTANCE: jointing device (7) comprises a top part (8.1), the main part (8.2) and two orthogonal connection axes (10, 11). The top part (8.1) comprises two primary jointing planks (12) and two secondary jointing planks (13), attached to the lower angular chord element (3.1). Each primary jointing plank (12) protrudes above the top of the lower angular chord element (3.1) and has primary coaxial passages (15.1) or secondary coaxial passages (17.1). The main part (8.2), which is arranged between primary jointing planks (12) and between secondary jointing planks (13), has the primary holes (15.2) and secondary holes (17.2). Connection axes (10, 11) stretch via primary passages (15.1) and primary holes (15.2) or via secondary passages (17.1) and secondary holes (17.2). Primary plates (20) and secondary plates (21), attached to the upper angular chord element (3.2), produce the appropriate part of the bearing support surface of connection axes (10, 11).

EFFECT: reduced bend in connection axes and increased thickness of bearing support surfaces.

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