Claims
- 1. A sliding door assembly adapted for opening and closing a doorway in an enclosed structure having walls defining the doorway, said door assembly comprising:
- (a) upper and lower track C-channel rails (200 and 202), each having a hollow interior cross-sectional configuration defining a longitudinally extending hollow interior slideway (324, 326, 328, 330) having a circumferentially interrupted cylindrical slide bearing surface and wherein each said rail is adapted to be supported on a wall of the structure with a major longitudinal axis of each rail extending generally horizontally, each said rail having a longitudinally extending slot opening laterally (312) to the hollow interior slideway of said rail,
- (b) a door panel (68) sized to be adapted to close the doorway and having upper and lower edges juxtaposed to said upper and lower track channels and being made of a material having at least limited flexibility,
- (c) an upper slide and cap panel-attachment sub-assembly (70) and a lower slide and cap panel-attachment sub-assembly (72) each having an panel attachment structure.sub.-- secured to said door panel upper and lower edges, and extending substantially the full length of the associated said panel edges,
- (d) each said sub-assembly having a first leg wall (112) extending therefrom into the hollow interior slideway of the associated one of said rails via said rail slot opening and terminating therein in a glide carrier portion (124 or 125), and
- (e) each said sub-assembly also including a pair of glides (104 or 105) mounted on said sub-assembly first leg wall of said glide carrier portion (124 or 125) with said glides of each said pair being spaced longitudinally of said carrier portion and respectively located adjacent the longitudinally opposite ends of the associated said carrier portion and having a slide bearing surface bearing slidably on said slide bearing surface of said slideway of the associated said rail for slidably supporting said door panel by sliding motion of said slides along the longitudinal axis of said track rail slideway, said rail and glide slide bearing surfaces being curved complementally to one another, and said rail slide bearing surface being cylindrically curved throughout its circumferential extent about a single radius of cylindrical curvature centerline extending parallel to said major longitudinal axis of said rail such that each said door slide and cap sub-assembly has limited rotational freedom around the rail slide bearing cylindrical surface sliding axis that permits a limited range of relative rotation only about such centerline axis between each said door slide and cap sub-assembly and associated rail so that, if either said sub-assembly or rail is twisted during installation or operation, such rotational freedom will compensate for either such twist, thereby enabling said door assembly to be mounted with said rails allowed to twist within certain limits when fastened down to conform to non-parallel or non-level structural surfaces to which they are mounted either as manufactured or as distorted in operation by loading causing structural twisting without thereby inhibiting sliding motion of said door along said rails.
- 2. The door assembly of claim 1 wherein said slide and cap panel-attachment sub-assembly of each said door slide and cap assembly is constructed and arranged to have an adjustable clamping structure secured to their respectively associated door panel upper and lower edges by clamping thereto.
- 3. The door assembly of claim 2 wherein each said slide and cap subassembly includes a main slide (100) formed as an aluminum extrusion of constant cross sectional configuration and extending lengthwise substantially the full width of said door panel (68), said main slide (100) having a U-shaped channel section made up of a central bight wall (108) integrally joined through radiused corners to a second leg wall (110) and to said first leg wall (112) that extend parallel to one another, an outer edge of said second leg wall (110) being joined through a radiused corner to a panel clamp leg wall (114) that extends with its major plane generally perpendicular to that of said second leg wall (110) and generally parallel to that of said bight wall (108), said main slide also having a keeper leg wall (116) protruding from said clamp leg wall (114) adjacent said second leg wall (110) and being spaced therefrom to define a slide cap keeper slot (118) therebetween, said clamp leg wall (114) having a upper door panel facing longitudinal edge provided with a small radius protruding lip (120) and a door panel facing surface provided with a row of longitudinally extending teeth (122) for sealably clamping against the associated clamped surface of said door panel.
- 4. The door assembly of claim 3 wherein said first leg wall (112) of said slide (100) terminates at its free end in said glide carrier portion (124), said glide carrier portion being formed as a terminal integral enlargement of said first leg wall (112) and having four longitudinally extending and radially protruding major or thick ribs (126, 128, 130, 132), each having its major mid-plane oriented at an included angle of about 45 degrees relative to the mid-plane (134) of said first leg wall (112) such that said ribs (126-132) thus form diametrically oppositely protruding major rib pairs (126/130 and 128/132), said glide carrier portion also having a pair of minor or thin ribs(136 and 138) formed co-planar with their major plane perpendicular to said first leg wall mid-plane (134) so as to protrude respectively between said first major ribs (126 and 128) and between second major ribs (130 and 132), and wherein the outer end edges of said major ribs (126-132) are edge-rounded and terminate flush with an imaginary circle (140) and wherein the outer end edges of said thin ribs (136 and 138) terminate slightly short of said circle (140), each of said glides (104, 106) being grooved to receive one of said thin ribs and the two of said major ribs flanking said one thin rib, the exterior surface of each said glide being contoured by being curved about said radius of curvature for slidably bearing on said slideway for both said limited relative sliding rotation and longitudinal sliding motion therealong.
- 5. The door assembly of claim 4 wherein each said glide (104, 106) is rectangular in plan view with flat parallel opposite side surfaces (160, 162), flat and parallel end faces (164, 166), a flat top surface (168) and oppositely inclined track-engaging slide surfaces (170 and 172) intersecting the respectively associated end surfaces (164 and 166) at about a 45 degree angle, and wherein each said glide (104, 106) is formed with oppositely angled major grooves (174 and 176) complementary in configuration to said carrier major ribs (126 and 128) and ribs (132 and 130) and a central minor groove (178) complemental to said carrier minor thin ribs (136 or 138), each said glide (104, 106) being made of a plastic material to render the same semi-resilient, and wherein the material removed in the formation of said grooves (174-178) thus enables yieldable bending of each glide in a plane perpendicular to said slideway longitudinal axis to thereby widen a gap defined between a pair of rounded edges (180 and 182) of associated re-entrant gripping fingers (181 and 183) formed in a bottom side of each said glide (104, 106) by the provision of said major grooves (174 and 176).
- 6. The door assembly of claim 5 wherein each said glide (104, 106) is assembled onto said glide carrier portion (124) during manufacture by being oriented adjacent a longitudinal end of said carrier portion with its said grooves (174, 176 and 178) aligned with said ribs (126, 128 and 136) or ribs (130 and 132 and 138) and then slid sideways onto these ribs to a position inward from the associated end of said carrier portion (124) and then, in order to capture each said glide within a limited range of sliding motion longitudinally of said carrier portion (124), the associated one of said minor or thin ribs (136, 138) is struck out slightly to produce two limit stop tangs, one on either side of each said glide (104, 106).
- 7. The door assembly of claim 6 wherein said glides comprise two upper glides (104) and two identical lower glides (106) mounted on each said slide/cap sub-assembly (70, 72) and said glides are identical with one another and are each extruded from a suitable length of material having a cross-sectional configuration defining said grooves as extruded and from which said individual glides (104, 106) are cut at equal length increments.
- 8. The door assembly of claim 7 wherein said glide plastic material comprises a polymer filled with a self-lubricating material.
- 9. The door assembly of claim 8 wherein said glide plastic material is a filled acetal plastic material.
- 10. The door assembly of claim 6 wherein once said glides have been constrained as set forth in claim 6 for limited longitudinal travel on said carrier (124), said glides still may be individually removed and replaced by peeling off each said glide due to its semi-resilient characteristics and configuration thereby permitting yieldable bending of said glide in a said plane perpendicular to the longitudinal axis of said carrier (124), and wherein re-installation, or installation of replacement glides, between said travel-limiting strike outs in the center ribs may be accomplished manually as assisted by a suitable hand tool such as pliers or a screwdriver to apply sufficient mounting distortion forces to snap each said glide onto seated position on said associated mounting ribs.
- 11. The door assembly of claim 3 wherein each said slide and cap sub-assembly includes a slide cap (102) that is L-shaped in transverse cross section to have wide and narrow leg walls (144, 142) and is co-extensive in length with said main slide (100) and is likewise formed as an aluminum extrusion of constant cross-sectional configuration with said narrow width leg wall (142) designed to slip fit into said keeper slot (118) of said slide (100) so as to be adjustably captured between said second leg wall and said keeper leg wall (116) of said slide (100) in panel-clamping assembly therewith.
- 12. The door assembly of claim 11 wherein said upper rail (200) is adapted to be mounted with said central slot (312) facing outward and generally co-planar with the adjacent portion of said door panel such that a bottom wall (300) of said rail wall is adapted to face outwardly away from the adjacent portion of said door panel and a side wall (304) is adapted to face toward the door assembly supporting structure of said enclosed structure and mounting openings are provided in said side wall (304) in an internal groove (320) provided therein which now becomes the bottom most groove of said rail in this orientation, and wherein said main slide (100A) has a right-angle wall extension portion (109) provided integrally between a bight wall (108) and a leg wall (110) that overlies said rail (200) in assembly therewith.
- 13. The door assembly of claim 11 wherein said upper rail (200) is adapted to be mounted with said slot (312) facing toward the adjacent portion of said door panel and said main slide (100B) has said leg wall (112) extending from said glide carrier (124) so as to protrude out through said rail slot (312) and then is directly joined perpendicularly to a ledge wall portion (111), and wherein said cap (102) cooperates with said ledge wall (111) and said keeper wall (116) is slidably captured in said keeper slot (118) formed therebetween.
- 14. The door assembly of claim 11 wherein said cap wider leg wall (144) is formed with its major plane defining an included angle slightly less than 90 degrees relative to the major plane of said cap narrow leg wall (142), and wherein said cap (102) in panel-clamping assembly with said slide (100) is oriented with its upper end generally flush with that of said slide (100), and wherein said cap 102 also has a longitudinal rib (146) at its upper edge, facing said slide rib (120), and a row of longitudinally extending teeth (148) facing said slide teeth (122).
- 15. The door assembly of claim 14 wherein a plurality of fastener-receiving mounting holes (150, 152, 154 and 156) are provided in each said slide (100) for alignment with corresponding mounting holes (76, 78) in said door panel, and wherein each said cap (102) is likewise provided with a plurality of mounting holes-oriented identically with said slide mounting holes (150-156) for axial alignment therewith in panel-clamping assembly, and wherein said door panel mounting holes are oblong in configuration with the major hole axis extending perpendicular to said rails to permit mounting adjustment of said door panel in said slide and cap sub-assemblies.
- 16. The door assembly of claim 15 wherein the door panel mounting adjustment is fixed by insertion of an adhesive sealant in said door panel mounting holes after final clamping-tightening of associated fasteners therein.
- 17. The door assembly of claim 15 wherein, to complete the assembly of said door with each said slide and cap sub-assemblies, the lower edge said door panel (68) is inserted between said clamp leg wall (114) of said main slide (100) and said cap wider leg wall (144) of said cap (102), suitable fasteners (190) are inserted through said mounting holes (150-156) of said slide (100) and door panel (68) oriented to register said door panel mounting holes (78) with the fastener ends so that they protrude through the exterior surface of said door panel (68), and wherein said cap (102) is likewise registered with its mounting holes on protruding fastener ends and then drawn up tight as said fasteners are secured to insert clamping pressure via said clamp leg wall (114) and said cap wider leg wall (144) on the edge portion of the door panel captured therebetween, whereby said serrations (122 and 148) of said slide (100) and said cap (102) function to grip the material of said door panel securely as so installed, whereby said small raised longitudinal lips (120 and 146) further enhance the gripping action of said door panel and form a water seal at the weather side interface of this joint, whereby the inclination angle (B) of said cap wider leg wall (144) in cooperation with the close sliding fit of said leg wall (142) into said slide cap keeper slot (118) in assembly causes said lip (146) of said cap (102) to grip more tightly than those of said serrations (148) most remote therefrom to further enhance the water tight seal achieved during this installation.
- 18. The door assembly of claim 2 wherein said upper and lower track rails (200 and 202) are identical to one another and each comprise an aluminum extrusion of constant cross-sectional configuration that is generally rectangular as defined by a base wall (300), a pair of parallel first and second side walls (302 and 304) and a front wall (306) made up of first and second lip wall portions (308 and 310) that protrude toward one another, one from each of said side walls (302 and 304) such that said lip walls (308 and 310) define said longitudinally extending central slot opening (312) therebetween that extends the full length of each said rail and is open at the longitudinal ends of each said rail.
- 19. The door assembly of claim 18 wherein said rails are provided with a protective coating of either a polyester powder coat having a white coating, or a clear anodized coating.
- 20. The door assembly of claim 18 wherein the interior configuration of each of said rails (200, 202) includes first and second internal shoulder portions (314 and 316) provided at the corner junctions of said base wall (300) with said first and second side walls (302 and 304), respectively, said first shoulder portion (314) defining in conjunction with the interior surfaces of said first side wall (302) and the interior surface of said first lip wall (308) a full length first internal groove (318), and wherein said second internal shoulder (316) in conjunction with the internal surface of said second side wall (304), and internal surface of lip wall(310) defines a laterally opposite, symmetrically configured second internal groove (320), and wherein said internal shoulders (314, 316) in conjunction with the internal surface of said base wall (300) define a third internal groove (322) that, like said first and second internal grooves (318 and 320), extends the full length of said track rail channel and is open at the longitudinally opposite ends thereof.
- 21. The door assembly of claim 20 wherein the interior surfaces of said shoulders (314 and 316) and said lip walls (308 and 310) are curved in a plane perpendicular to the rail longitudinal axis to define four curved, in cross-section, slide bearing surfaces (324, 326, 328, 330) contiguous with an imaginary right cylinder (332) having a radius dimension less than the distance between the axis (334) of said imaginary cylinder and each of first, second and third back walls (319, 321 and 323)of said first, second and third grooves (318, 320 and 332) respectively, said four curved slide bearing surfaces (324-330) thereby being curved about said radius of curvature and thereby forming said interrupted cylindrical bearing surface for slidably and rotatably receiving said glides (104 and 106, or 105) as mounted on said glide carrier portion (124) with surfaces of said glides slidably bearing on said curved track surfaces (326, 324, 328 and 330).
- 22. The door assembly of claim 21 wherein the outside dimensional distance between said exterior sliding surfaces of said slides (104 and 106) when assembled on said carrier portion (124) is made just slightly less than the diameter of said imaginary cylinder (332) so that said glides can be inserted endwise with a close sliding fit into the open end of the associated said rail (200, 202) in initial assembly.
- 23. The door assembly of claim 22 wherein the minimum spacing distance between said lip walls (308 and 310) defining said slot (312) is sufficiently greater than the thickness of slide leg wall (112) protruding therebetween such that said lip walls (308 and 310) serve as pivoting end limit stops so that said slide (100) can only rotate about the rail axis (334) through a limited angular range of about 20 degrees clockwise and about 20 degrees counterclockwise from the centered position of said slide (100) in said associated rail (200 and 202) and such that within this predetermined limited slide pivotal range, the sliding bearing of said glides (104 and 106 or 105) remain in bearing contact with at least a portion of their associated said curved slide track surfaces (324-330).
- 24. The door assembly of claim 23 wherein each of said rails (200, 202) also is formed with a pair of first and second external grooves (340 and 342), each having a circular portion in cross-sectional configuration and that extend the full length of the associated said rail and are open at their longitudinally opposite ends such that said external grooves (340 and 342) respectively reduce the material content of said first and second shoulder portions (314 and 316) to thereby reduce weight and costs, and the circular portion of each said external groove (340, 342) provides a rail end socket for threadably receiving an associated self-threading screw for mounting an end stop plate (344) to said associated rail.
- 25. The door assembly of claim 24 including in combination therewith said stop plate (344), said stop plate having notches or other suitable openings, one in alignment with each of said internal groove (318, 320, 322) of said associated rail (202), to permit water drainage out the associated end of said rail.
- 26. The door assembly of claim 1 wherein said door assembly also includes a frame/rail sub-assembly comprising a frame assembly weldment (64) wherein said upper and lower track C-channel rails (200 and 202) are detachably fastened to the upper and lower edges of said frame weldment (64), said frame weldment (64) being composed of first and second upright frame sections (204 and 206) that extend parallel to one another with appropriate lateral spacing therebetween adopted to match the associated enclosed structure walls defining the corresponding first and second side edges of the doorway (66), said uprights (204 and 206) being interconnected at their upper and lower ends by an upper frame section (208) and a lower frame section (210), respectively, and wherein said rails are mounted on said frame weldment (64) with one of their ends flush with said first upright of said frames and wherein said rails protrude beyond said frame second upright sufficiently to provide track length for said door panel to clear all of the doorway opening when slid away from said first upright.
- 27. The door assembly of claim 1 further including a built-in door stop for holding said sliding door assembly in fully open position, said door stop-sub-assembly (400) being mounted to the in-use outermost-oriented side wall (304) of said one of said rails (200) and comprising an L-shaped mounting bracket (402) having its wider vertical leg (404) fastened to said side wall (304) of said rail (202), the narrower upper leg (410) of said bracket (402) being spaced above and overhanging said wall lip (310) of said rail (200), a door stop lever (414) also comprising an L-shaped member having a long leg, (416) near one end and at the other end an upright stop arm (420), said stop lever long leg (416) being secured to said bracket (402) by a rivet (422) which also serves as a pivot journal for said lever stop arm (414) and a Belleville spring washer (424) received on said rivet (422) so as to be partially stress-compressed between said long leg (416) of said lever (414) and said narrower upper leg (410) of said bracket (402), said bracket and door stop lever being constructed and arranged such that said lever (414) is pivotable through approximately a 20 degree swing range out to a holding position for edge abutment-stopping of closing motion of said sliding door panel from its fully open position, the end limit of this pivotal motion being set by an angled corner surface (426) of said stop lever (414) that abuts the inward-most-facing surface of wider vertical leg (404) of said bracket (402) when said lever arm (414) is swung from a retracted position to a stop position wherein said stop arm (420) is positioned as an obstruction in the travel path of said slide extrusion (100) of said upper slide/cap assembly (70), and wherein the yieldable frictional resistance exerted between said washer (424) and the relatively movable surfaces of said bracket upper leg (410) and said lever long leg (416) is sufficient to stabilize said door stop in either its door-release or door-stop positions.
- 28. The door assembly of claim 1 wherein said main slide (100C) is constructed and arranged with said carrier portion (125) being cylindrical in cross section, and wherein said glides (105) each comprise a circumferentially split sleeve having a parting gap (127) that accommodates said leg wall (112) protruding therethrough, and wherein a pair of such split sleeves (105) are positioned on said carrier (125) longitudinally thereof adjacent its opposite longitudinal ends, the outer diameter of each said sleeve (105) having a slight sliding clearance fit on said rail track surfaces (324-330) to permit longitudinal sliding of said door panel therealong as well as said limited range of relative rotation between said slide (100C) and said track (202), and wherein each of said sleeves (105) is held against movement longitudinally relative to said carrier portion (125) of said slide (100C) by forming four retaining detents, one flanking each side of each said glide (105) after installation of said glide (105) to the desired position longitudinally of said carrier (125).
- 29. The door assembly of claim 28 wherein each of said glides (105) is made of semi-resilient plastic material and hence may be removed sideways by the parting gap being swung open as said glide is pulled laterally off of said carrier (125), and vice-versa relative to replacement installation of said glides (105) as a field service operation.
- 30. A sliding structural support assembly adapted for movably supporting a panel array or the like, said support assembly comprising:
- (a) first and second track C-channel rails each having a hollow interior cross-sectional configuration defining a longitudinally extending hollow interior slideway having a circumferentially interrupted cylindrical slide bearing surface and wherein each said rail is adapted to be supported on a support structure with a major longitudinal axis of each rail extending generally parallel to that of the other rail, each said rail having a longitudinally extending slot opening laterally to the hollow interior slideway of said rail,
- (b) a panel array support structure having first and second planar support edges juxtaposed to said first and second track channels,
- (c) a first slide and cap attachment sub-assembly and a second slide and cap attachment sub-assembly respectively each having a panel attachment structure secured respectively to said first and second planar support edges, and extending substantially the full length of the associated said planar support edge,
- (d) each said slide and cap-attachment sub-assembly having a first leg wall extending therefrom into the hollow interior slideway of the associated one of said rails via said rail slot opening and terminating therein in a glide carrier portion, and
- (e) each said slide and cap-attachment sub-assembly also including a pair of glides mounted on said sub-assembly first leg wall of said glide carrier portion with said glides of each said pair being spaced longitudinally of said carrier portion and respectively located adjacent the longitudinally opposite ends of the associated said carrier portion and having a slide bearing surface bearing slidably on said slide bearing surface of said slideway of the associated said rail for slidably supporting said panel by sliding motion of said slides along the longitudinal axis of said track rail slideway, said slide bearing surfaces being complemental to one another and each being curved about a radius of curvature centerline extending parallel to said major longitudinal axis of said rail such that each said slide and cap sub-assembly has limited rotational freedom around the sliding axis that permits a limited range of relative rotation about such axis between each said slide and cap sub-assembly and associated rail so that, if either said sub-assembly or rail is twisted during installation or operation, such rotational freedom will compensate for either such twist, thereby enabling said sliding structural support assembly to be mounted with said rails allowed to twist within certain limits when fastened down to conform to non-parallel or non-level structural surfaces to which they are mounted either as manufactured or as distorted in operation by loading causing structural twisting without thereby inhibiting sliding motion of said support assembly along said rails.
- 31. The assembly of claim 30 wherein each said slide and cap sub-assembly is constructed and arranged to have an adjustable clamping structure secured to their respectively associated panel planar support edges by clamping thereto.
- 32. The assembly of claim 31 wherein each said slide and cap subassembly includes a main slide formed as an aluminum extrusion of constant cross sectional configuration and extending lengthwise substantially the full width of said planar support edges, said main slide having a U-shaped channel section made up of a central bight wall integrally joined through radiused corners to a second leg wall and to said first leg wall that extend parallel to one another, an outer edge of said second leg wall being joined through a radiused corner to a clamp leg wall that extends with its major plane generally perpendicular to that of said second leg wall and generally parallel to that of said bight wall, said main slide also having a keeper leg wall protruding from said clamp leg wall adjacent said second leg wall and being spaced therefrom to define a slide cap keeper slot therebetween, said clamp leg wall having a planar support edge facing longitudinal edge provided with a small radius protruding lip and a facing surface provided with a row of longitudinally extending teeth for sealably clamping against the associated clamped surface of said planar support edge.
- 33. The assembly of claim 32 wherein said first leg wall of said slide terminates at its free end in said glide carrier portion, said glide carrier portion being formed as a terminal integral enlargement of said first leg wall and having four longitudinally extending and radially protruding major or thick ribs, each having its major mid-plane oriented at an included angle of about 45 degrees relative to the mid-plane of said first leg wall such that said ribs thus form diametrically oppositely protruding major rib pairs, said glide carrier portion also having a pair of minor or thin ribs formed co-planar with their major plane perpendicular to said first leg wall mid-plane so as to protrude respectively between said first major ribs and between second major ribs, and wherein the outer end edges of said major ribs are edge-rounded and terminate flush with an imaginary circle and wherein the outer end edges of said thin ribs terminate slightly short of said circle, each of said glides being grooved to receive one of said thin ribs and the two of said major ribs flanking said one thin rib, the exterior surface of each said glide being contoured by being curved about said radius of curvature for slidably bearing on said slideway for both said limited relative sliding rotation and longitudinal sliding motion therealong.
- 34. The assembly of claim 33 wherein each said glide is rectangular in plan view with flat parallel opposite side surfaces, flat and parallel end faces, a flat top surface and oppositely inclined track-engaging slide surfaces intersecting the respectively associated end surfaces at about a 45 degree angle, and wherein each said glide is formed with oppositely angled major grooves complementary in configuration to said carrier major ribs and ribs and a central minor groove complemental to said carrier minor thin ribs, each said glide being made of a plastic material to render said glide semi-resilient, and wherein the material removed in the formation of said grooves thus enables yieldable bending of each glide in a plane perpendicular to said slideway longitudinal axis to thereby widen a gap defined between a pair of rounded edges of associated re-entrant gripping fingers formed in a bottom side of each said glide by the provision of said major grooves.
- 35. The assembly of claim 34 wherein each said glide is assembled onto glide carrier during manufacture by being oriented adjacent a longitudinal end of said carrier portion with its said grooves aligned with said ribs and then slid sideways onto these ribs to a position inward from the associated end of said carrier portion and then, in order to capture each said glide within a limited range of sliding motion longitudinally of said carrier portion, the associated one of said minor or thin ribs is struck out slightly to produce two limit stop tangs, one on either side of each said glide.
- 36. The assembly of claim 35 wherein said glides comprise two upper glides and two identical lower glides mounted on each said slide/cap sub-assembly and said glides are identical with one another and are each extruded from a suitable length of material having a cross-sectional configuration defining said grooves as extruded and from which said individual glides are cut at equal length increments.
- 37. The assembly of claim 36 wherein said glide plastic material comprises a polymer filled with a self-lubricating material.
- 38. The assembly of claim 37 wherein said glide plastic material is a filled acetal plastic material.
- 39. The door assembly of claim 35 wherein once said glides have been constrained for limited longitudinal travel on said carrier, said glides still may be individually removed and replaced by peeling off each said glide due to its semi-resilient characteristics and configuration thereby permitting yieldable bending of said glide in a said plane perpendicular to the longitudinal axis of said carrier, and wherein re-installation, or installation of replacement glides, between said travel-limiting strike outs in the center ribs may be accomplished manually as assisted by a suitable hand tool to apply sufficient mounting distortion forces to snap each said glide onto seated position on said associated mounting ribs.
- 40. The assembly of claim 32 wherein said adjustable clamping structure of each said slide and cap sub-assembly includes a slide cap that is L-shaped in transverse cross section to have wide and narrow leg walls and is co-extensive in length with said main slide and is likewise formed as an aluminum extrusion of constant cross-sectional configuration with said narrow width leg wall designed to slip fit into said keeper slot of said slide so as to be adjustably captured between said second leg wall and said keeper leg wall of said slide in panel-clamping assembly therewith.
- 41. The assembly of claim 40 wherein said cap wider leg wall is formed with its major plane defining an included angle slightly less than 90 degrees relative to the major plane of said cap narrow leg wall, and wherein said cap in panel-clamping assembly with said slide is oriented with its upper end generally flush with that of said slide, and wherein said cap also has a longitudinal rib at its upper edge, facing said slide rib, and a row of longitudinally extending teeth facing said slide teeth.
- 42. The assembly of claim 31 wherein said first and second track C-channel rails are identical to one another and each comprise an aluminum extrusion of constant cross-sectional configuration that is generally rectangular as defined by a base wall, a pair of parallel first and second side walls and a front wall made up of first and second lip walls that protrude toward one another, one from each of said side walls such that said lip walls define said longitudinally extending central slot opening therebetween that extends the fall length of each said rail and is open at the longitudinal ends of each said rail.
- 43. The assembly of claim 42 wherein said rails are provided with a protective coating of either a polyester powder coat having a white coating, or a clear anodized coating.
- 44. The assembly of claim 42 wherein the interior configuration of each of said rails includes first and second internal shoulder portions provided at the corner junctions of said base wall with said first and second side walls, respectively, said first shoulder portion defining in conjunction with the interior surfaces of said first side wall and the interior surface of said first lip wall a full length first internal groove, and wherein said second internal shoulder in conjunction with the internal surface of said second side wall, and internal surface of lip wall defines a laterally opposite, symmetrically configured second internal groove, and wherein said internal shoulders in conjunction with the internal surface of said base wall define a third internal groove that, like said first and second internal grooves, extends the full length of said track rail channel and is open at the longitudinally opposite ends thereof.
- 45. The assembly of claim 44 wherein the interior surfaces of said shoulders and said lip walls are curved in a plane perpendicular to the rail longitudinal axis to define four curved, in cross-section, slide bearing surfaces contiguous with an imaginary right cylinder having a radius dimension less than the distance between the axis of said imaginary cylinder and each of first, second and third back walls of said first, second and third grooves respectively, said four curved slide bearing surfaces thereby being curved about said radius of curvature and thereby forming said interrupted cylindrical bearing surface for slidably and rotatably receiving said glides as mounted on said glide carrier portion with surfaces of said glides slidably bearing on said curved track surfaces.
- 46. The assembly of claim 45 wherein the outside dimensional distance between said exterior sliding surfaces of said slides when assembled on said carrier portion is made just slightly less than the diameter of said imaginary cylinder so that said glides can be inserted endwise with a close sliding fit into the open end of the associated said rail in initial assembly.
- 47. The assembly of claim 46 wherein the minimum spacing distance between said lip walls defining said slot is sufficiently greater than the thickness of slide leg wall protruding therebetween such that said lip walls serve as pivoting end limit stops so that said slide can only rotate about the rail axis through a limited angular range of about 20 degrees clockwise and about 20 degrees counterclockwise from the centered position of said slide in said associated rail and such that within this predetermined limited slide pivotal range, the sliding bearing of said glides remain in bearing contact with at least a portion of their associated said curved slide track surfaces.
Parent Case Info
This is a United States regular utility patent application filed pursuant to 35 U.S.C. .sctn. 111(a) and claiming the benefit under 35 U.S.C. 119(e)(1) of the priority of United States Provisional Patent Application Ser. No. 60/073,510 filed Feb. 3, 1998 pursuant to 35 U.S.C. Section 111(b).
US Referenced Citations (26)