Back to results
US 5,915,446 AGranted
Extruded hinge members and folding doors formed therefrom
AssigneeRoyal Group Technologies Limited
InventorVic De Zen
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeRoyal Group Technologies Limited
InventorVic De Zen
Estimating the term…
Hinge member extrusions for use in forming a hinge connection, each member having a front wall and a rear wall and presenting at one edge a generally C-shaped socket formation, the socket formation having a first part circular edge wall segment extending arcuately inwardly of the edge of the front wall to adjacent the rear wall and being connected thereto, and a second part circular arm segment connected to an end of the first part circular wall segment by a web extending inwardly of the first part circular wall segment, the first and second part circular segments having a common center with the radius of the inner surface of the first part circular wall segment being slightly greater than the radius of the outer surface of the second part circular arm segment. Two such hinge members are required in forming a hinge formation to receive a pintle, one of the hinge members has its part circular arm segment connected to its part circular wall segment at the end adjacent the rear wall. The other has its part circular arm section connected to its part circular wall segment at the end at the edge of the front wall.
An extruded thermoplastic hinge member for use in forming a hinge connection, said member having a front wall and a rear wall and a generally C-shaped socket formation at one end of said hinge member, said socket formation comprising a first part circular segment which curves inwardly between said front and rear walls and a second part circular segment connected by a first web to one end of said first segment, both segments having a common center, said first segment having an inner surface spaced by a first distance and said second segment having an outside surface spaced by a second distance from the common center, the first distance being slightly greater than the second distance.
First and second hinge members extruded from thermoplastic material and adapted for part rotational inter-engagement for use in forming a hinge connection, each of said hinge members having a front wall and a rear wall and a generally C-shaped socket formation at one end of each hinge member, each socket formation having first and second part circular segments having a common center, said first segment having an inner surface spaced by a first distance and said second segment having an outer surface spaced by a second distance from said common center, the first distance being slightly greater than the second distance, said first segment forming a reentrant end wall extending arcuately inwardly between the front and rear walls at the one end of each hinge member, the second segment being connected to the first segment and extending outwardly therefrom on each hinge member, the second segment being located near the rear wall of the first hinge member and the second segment being located near the front wall of the second hinge member such that the socket formations of the first and second hinge members couple with one another to form a barrel hinge for receiving a hinge pin.
A folding door comprising a plurality of transverse rows of door panels of plastic material hingedly connected by a plurality of transverse spaced hinges comprising first and second extruded hollow thermoplastic hinge bars each of which has a front wall and a rear wall and each hinge bar having at a first edge thereof a generally C-shaped socket formation and along a second edge opposite the first edge each hinge bar being provided with door panel engaging means, each socket formation having first and second part circular segments both having a common center, said first segment forming a reentrant edge wall extending arcuately inwardly between the front and rear walls of each hinge bar, the second segment being connected to one end of the first segment and curving out beyond the front and rear walls of each hinge bar, in each socket formation the first segment having an inner surface which is spaced slightly farther away from the common center than an outer surface of said second segment, in said first hinge bar said second segment being connected to said first segment adjacent the rear wall thereof, in said second hinge bar said second segment being connected to said first segment adjacent the front wall thereof such that the socket formations of said first and second hinge bars couple with one another to form a hinge barrel which is fitted with a hinge pintle.
Dependencies are inferred from the claim text.