(57) A frictionless hinge arrangement comprises two hinge components (1,2), each having
a hinge surface (3,4), the hinge surfaces (3,4) confronting each other, and connected
hingedly close together by a plurality of thin pliable connecting straps (11,12),
of which each such strap passes between the confronting surfaces (3,4) of the two
hinge components (1,2), thus very slightly separating them; the straps (3,4) being
disposed in approximately s-shape and reverse s-shape arrangement alternately in one
sense and in the other to allow the adjacent hinge surfaces (3,4) to roll on each
other (with the straps (11,12) in between) when the hinge is opened or closed, each
strap being secured fixed on each side in relation to a respective one of the hinge
components; wherein on each side, each of the flexible straps (11,12) is provided
with a lug (13,14) accommodated in a slot or socket formation (9,10) associated with
one of the hinge parts (thus fixing the lug in relation to one of the hinge parts),
so that the slot or socket formation (9,10) retains the lug (13,14) and the associated
end of the strap against movement lengthwise relative to the hinge parts (1,2) as
well as against disassembly by any pulling-forces exerted on the flexible strap (11,12).
The end of the flexible strap that forms part of the snap-in fixing can be accessible
by a user's hand or by a tool to allow the complementary formations to be dislodged
and thereby disassembled. The hinges (and kits of parts for making them) are applicable
for example to fold-up displays, space frames, constructional display systems, folding
or other hinged doors and partitions for office furniture, dividers, doors and gates,
as well as almost any other application requiring hinge function. In such hinge arrangements
the ends of the flexible straps can be provided with springy folded-back tongue extensions
to help retain the lugs in engagement with the socket formations.
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