Joint

摘要

#CMT# #/CMT# The hinge has two outer layers (3, 4) made of a fiber-reinforced composite material of high strength and stiffness, where each layer is provided with a separating joint formed along a buckling line. A strip (2) made of a flexible, bucklable fiber-reinforced plastic is embedded between the outer layers. The strip is buckled along the joints (5, 6) of the outer layer, during actuation of the hinge. The strip is embedded in a region of the buckling line, where plastic has a width of approximately 15 to 20 millimeters to either side of the buckling line. #CMT#USE : #/CMT# Used for a medical or technical X-ray device (claimed). Can also be used for positioning a headholder for radiography. Can also be used for turning or pivoting movements, when unfolding solar generators or flat aerials or when deploying aerial dishes. Can also be used in space flight. #CMT#ADVANTAGE : #/CMT# The strip made of the bucklable fiber-reinforced plastic is embedded between the outer layers, where the strip is buckled along the separating joints of the outer layers, during the actuation of the hinge, thus enabling the hinge to reliably withstand a large number of stressor cycles. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a sectional view of a hinge. 2 : Strip 2` : Intermediate layer 3, 4 : Outer layers 5, 6 : Separating joints #CMT#POLYMERS : #/CMT# The bucklable fiber-reinforced plastic of the strip contains aramid fibers and a matrix of polyurethane resin. The fiber reinforced composite material of the outer layers is a carbon fiber-reinforced plastic with a matrix of epoxy resin.