FASTENER ACCESSIBLE AT ONE SIDE AND PROVIDED WITH HEAD ON INACCESSIBLE SIDE HAVING HOLD-DOWN, SUPPORT AND LOCK SECTIONS Russian patent published in 2006 - IPC F16B19/08 F16B19/10 

FIELD: fasteners accessible at one side and provided with bush and rod which are mounted by applying axial force between rod and bush.

SUBSTANCE: proposed fastener consists of two members; it is used for fastening various parts; fastener has hollow bush with hear of enlarged diameter at end opposite to bush head with holding section of lesser diameter located behind. Shearable ring is adaptable for contact coupling and motion inside bush forming inaccessible tulip-shaped head under action of axial force applied between bush and rod and for shearing it near inner or inaccessible surface of sheet parts being connected. Holding section is shifted together with rod body through shearable ring which is located at definite position depending on total thickness of parts being connected, thus forming hold-down and lock section between rod and bush on inner or inaccessible side of parts; rod and bush are provided with lock member formed after final forming of hold-down and lock section used for forming lock joint of rod with bush.

EFFECT: enhanced reliability of joint.

30 cl, 13 dwg