A hinge assembly connecting adjacent panels of an accordion shutter includes a hinge member having a pair of curved arms and a pair of panel connection members each having a pivot shaft. The pivot shafts are received within the corresponding curved arms and retained for rotation therein with the tip
A hinge assembly connecting adjacent panels of an accordion shutter includes a hinge member having a pair of curved arms and a pair of panel connection members each having a pivot shaft. The pivot shafts are received within the corresponding curved arms and retained for rotation therein with the tips of the curved arms received in arm receiving channels of the panel connection members. The adjacent panels may be oriented at an angle of less than 180° with respect to each other when both panel connection members are rotated to positions wherein the tips of curved arms are engaged by the closed ends of the arm receiving channels. The base of the hinge member also has a pair of shoulders, and the adjacent panels are oriented approximately parallel when the panel connection members are rotated to positions wherein the panel connection members are engaged by the shoulders.
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1. A hinge assembly for connecting adjacent panels of a foldable closure along lateral edges of the adjacent panels, the hinge assembly comprising: a hinge member having a pair of curved arms each having a tip and a substantially constant radius of curvature to sweep semi-circular arcs about a corre
1. A hinge assembly for connecting adjacent panels of a foldable closure along lateral edges of the adjacent panels, the hinge assembly comprising: a hinge member having a pair of curved arms each having a tip and a substantially constant radius of curvature to sweep semi-circular arcs about a corresponding longitudinal axis of the curved arm; anda pair of panel connection members each having a pivot shaft, a panel connection portion configured to engage and retain a lateral edge of one of the adjacent panels, and a curved connection portion connecting the panel connection portion to the pivot shaft, wherein an inner surface of the curved connection portion and a portion of an outer surface of the pivot shaft of each panel connection member define an arm receiving channel having a closed end,wherein the pivot shaft of each of the pair of panel connection members is disposed within a corresponding one of the pair of curved arms of the hinge member and retained for rotation therein and with the tip of the curved arm received in the arm receiving channel of the panel connection member, and wherein the adjacent panels connected by the hinge assembly are rotatable between a closed position wherein the adjacent panels are approximately parallel to each other and an open position wherein the adjacent panels are oriented at an angle of less than 180° with respect to each other when both panel connection members are rotated to positions wherein the tips of the pair of curved arms are engaged by the closed ends of the arm receiving channels of the panel connection members. 2. The hinge assembly of claim 1, wherein the hinge member comprises a base, and wherein the pair of curved arms extends outwardly in opposite directions from the base. 3. The hinge assembly of claim 2, wherein the base of the hinge member comprises a pair of shoulders, with each shoulder being disposed proximate a point at which a corresponding one of the pair of curved arms extends from the base, and wherein the adjacent panels connected by the hinge assembly are in the closed position and are oriented approximately parallel with respect to each other when both of the pair of panel connection members are rotated to positions wherein the curved connection portions are engaged by the shoulders of the hinge member. 4. The hinge assembly of claim 2, wherein the hinge member comprises a finger protection bar extending from the base between the pair of curved arms and disposed between the curved connection portions of the panel connection members when the pivot shafts of the panel connection members are received by the pair of curved arms, and wherein the panel connection members rotate toward the finger protection bar when the adjacent panels are rotated from the open position to the closed position. 5. The hinge assembly of claim 4, wherein the base of the hinge member comprises a pair of shoulders, with each shoulder being disposed proximate a point at which a corresponding one of the pair of curved arms extends from the base, wherein the finger protection bar comprises an extension portion extending from the base of the hinge member and a cross member connected to the extension portion opposite the base and extending approximately perpendicular to the extension portion, wherein the cross member has opposite ends disposed proximate the curved connection portions of the corresponding panel connection members, and wherein the adjacent panels connected by the hinge assembly are oriented approximately parallel with respect to each other when both of the pair of panel connection members are rotated to positions wherein the curved connection portions are engaged by at least one of the shoulders of the base and the opposite ends of the finger protection bar. 6. The hinge assembly of claim 1, wherein the panel connection portion of each of the pair of panel connection members comprises: an end wall having one end connected to the curved connection portion;a first flange extending from the end wall proximate the curved connection portion; anda second flange extending from the end wall opposite the curved connection portion, wherein the first flange and the second flange define a panel receiving channel that is parallel to a plane of a panel inserted therein. 7. The hinge assembly of claim 1, wherein the pivot shafts of the panel connection members comprise hollow cylindrical tubes. 8. The hinge assembly of claim 1, wherein the pivot shafts of the panel connection members comprise penannular pivot shafts having openings opposite the curved connection portion such that the openings face inner surfaces of the pair of curved arms retaining the penannular pivot shafts for an entire range of rotation of the penannular pivot shafts within the pair of curved arms. 9. A foldable closure, comprising: a pair of adjacent panels each having a lateral edge;a hinge member having a pair of curved arms each having a tip and a substantially constant radius of curvature to sweep semi-circular arcs of greater than 180° about a corresponding longitudinal axis of the curved arm; anda pair of panel connection members each having a pivot shaft, a panel connection portion engaging and retaining the lateral edge of one of the pair of adjacent panels, and a curved connection portion connecting the panel connection portion to the pivot shaft, wherein an inner surface of the curved connection portion and a portion of an outer surface of the pivot shaft of each panel connection member define an arm receiving channel having a closed end,wherein the pivot shaft of each of the pair of panel connection members is disposed within a corresponding one of the pair of curved arms of the hinge member and retained for rotation therein, with the tip of the curved arm received in the arm receiving channel of the panel connection member, and wherein the pair of adjacent panels are rotatable between a closed position wherein the adjacent panels are approximately parallel to each other and an open position wherein the adjacent panels are oriented at an angle of less than 180° with respect to each other when both panel connection members are rotated to positions wherein the tips of the pair of curved arms are engaged by the closed ends of the arm receiving channels of the panel connection members. 10. The foldable closure of claim 9, wherein the hinge member comprises a base, and wherein the pair of curved arms extends outwardly in opposite directions from the base. 11. The foldable closure of claim 10, wherein the base of the hinge member comprises a pair of shoulders, with each shoulder being disposed proximate a point at which a corresponding one of the pair of curved arms extends from the base, and wherein the pair of adjacent panels are in the closed position and are oriented approximately parallel with respect to each other when both of the pair of panel connection members are rotated to positions wherein the curved connection portions are engaged by the shoulders of the hinge member. 12. The foldable closure of claim 10, wherein the hinge member comprises a finger protection bar extending from the base between the pair of curved arms and disposed between the curved connection portions of the panel connection members when the pivot shafts of the panel connection members are received by the pair of curved arms, and wherein the panel connection members rotate toward the finger protection bar when the adjacent panels are rotated from the open position to the closed position. 13. The foldable closure of claim 12, wherein the base of the hinge member comprises a pair of shoulders, with each shoulder being disposed proximate a point at which a corresponding one of the pair of curved arms extends from the base, wherein the finger protection bar comprises an extension portion extending from the base of the hinge member and a cross member connected to the extension portion opposite the base and extending approximately perpendicular to the extension portion, wherein the cross member has opposite ends disposed proximate the curved connection portions of the corresponding panel connection members, and wherein the pair of adjacent panels are oriented approximately parallel with respect to each other when both of the pair of panel connection members are rotated to positions wherein the curved connection portions are engaged by at least one of the shoulders of the base and the opposite ends of the finger protection bar. 14. The foldable closure of claim 9, wherein the panel connection portion of each of the pair of panel connection members comprises: an end wall having one end connected to the curved connection portion;a first flange extending from the end wall proximate the curved connection portion; anda second flange extending from the end wall opposite the curved connection portion, wherein the first flange and the second flange define a panel receiving channel that is parallel to a plane of the one of the pair of adjacent panels inserted therein. 15. The foldable closure of claim 9, wherein the pivot shafts of the panel connection members comprise hollow cylindrical tubes. 16. The foldable closure of claim 9, wherein the pivot shafts of the panel connection members comprise penannular pivot shafts having openings opposite the curved connection portion such that the openings face inner surfaces of the pair of curved arms retaining the penannular pivot shafts for an entire range of rotation of the penannular pivot shafts within the pair of curved arms. 17. A hinge assembly for connecting adjacent panels of a foldable closure along lateral edges of the adjacent panels, the hinge assembly comprising: a hinge member comprising: a base,a pair of curved arms extend outwardly in opposite directions from the base, with each curved arm having a tip and a substantially constant radius of curvature to sweep semi-circular arcs about a corresponding longitudinal axis of the curved arm, anda finger protection bar extending from the base between the pair of curved arms, wherein the tip of each of the pair of curved arms and the finger protection bar define a gap there between; anda pair of panel connection members, each panel connection member comprising: a pivot shaft,a panel connection portion configured to engage and retain a lateral edge of one of the adjacent panels, anda curved connection portion connecting the panel connection portion to the pivot shaft, wherein an inner surface of the curved connection portion and a portion of an outer surface of the pivot shaft of each of the pair of panel connection members define an arm receiving channel having a closed end,wherein the pivot shaft of each of the pair of panel connection members is disposed within a corresponding one of the pair of curved arms of the hinge member and retained for rotation therein with the curved connection portion disposed within the gap defined by the finger protection bar and the tip of the curved arm retaining the pivot shaft, and with the tip of the curved arm received in the arm receiving channel of the panel connection member, andwherein the adjacent panels connected by the hinge assembly are rotatable between a closed position wherein the adjacent panels are approximately parallel to each other and an open position wherein the adjacent panels are oriented at an angle of less than 180° with respect to each other when both panel connection members are rotated to positions wherein the tips of the pair of curved arms are engaged by the closed ends of the arm receiving channels of the panel connection members, and wherein the panel connection members rotate toward the finger protection bar when the adjacent panels are rotated from the open position to the closed position. 18. The hinge assembly of claim 17, wherein the base of the hinge member comprises a pair of shoulders, with each shoulder being disposed proximate a point at which a corresponding one of the pair of curved arms extends from the base, and wherein the adjacent panels connected by the hinge assembly are oriented approximately parallel with respect to each other when both of the pair of panel connection members are rotated to positions wherein the curved connection portions are engaged by the shoulders of the hinge member. 19. The hinge assembly of claim 17, wherein the base of the hinge member comprises a pair of shoulders, with each shoulder being disposed proximate a point at which a corresponding one of the pair of curved arms extends from the base, and wherein the adjacent panels connected by the hinge assembly are oriented approximately parallel with respect to each other when both of the pair of panel connection members are rotated to positions wherein the curved connection portions are engaged by at least one of the shoulders of the base and the finger protection bar of the base. 20. The hinge assembly of claim 17, wherein the panel connection portion of each of the pair of panel connection members comprises: an end wall having one end connected to the curved connection portion;a first flange extending from the end wall proximate the curved connection portion; anda second flange extending from the end wall opposite the curved connection portion, wherein the first flange and the second flange define a panel receiving channel that is parallel to a plane of a panel inserted therein.
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이 특허에 인용된 특허 (24)
Knezevich Vladimir John, Accordion shutter system.
Werner Robert I. (Northbrook IL) Plavnik Gennady Z. (Buffalo Grove IL) Horne Eric C. (Greenville PA) Murrin Fred L. (Greenville PA), Shutter blade, assembly and method.
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